diff --git a/libs/mac/include/libavdevice/avdevice.h b/libs/mac/include/libavdevice/avdevice.h deleted file mode 100644 index ee946248..00000000 --- a/libs/mac/include/libavdevice/avdevice.h +++ /dev/null @@ -1,514 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVDEVICE_AVDEVICE_H -#define AVDEVICE_AVDEVICE_H - -#include "version.h" - -/** - * @file - * @ingroup lavd - * Main libavdevice API header - */ - -/** - * @defgroup lavd libavdevice - * Special devices muxing/demuxing library. - * - * Libavdevice is a complementary library to @ref libavf "libavformat". It - * provides various "special" platform-specific muxers and demuxers, e.g. for - * grabbing devices, audio capture and playback etc. As a consequence, the - * (de)muxers in libavdevice are of the AVFMT_NOFILE type (they use their own - * I/O functions). The filename passed to avformat_open_input() often does not - * refer to an actually existing file, but has some special device-specific - * meaning - e.g. for xcbgrab it is the display name. - * - * To use libavdevice, simply call avdevice_register_all() to register all - * compiled muxers and demuxers. They all use standard libavformat API. - * - * @{ - */ - -#include "libavutil/log.h" -#include "libavutil/opt.h" -#include "libavutil/dict.h" -#include "libavformat/avformat.h" - -/** - * Return the LIBAVDEVICE_VERSION_INT constant. - */ -unsigned avdevice_version(void); - -/** - * Return the libavdevice build-time configuration. - */ -const char *avdevice_configuration(void); - -/** - * Return the libavdevice license. - */ -const char *avdevice_license(void); - -/** - * Initialize libavdevice and register all the input and output devices. - */ -void avdevice_register_all(void); - -/** - * Audio input devices iterator. - * - * If d is NULL, returns the first registered input audio/video device, - * if d is non-NULL, returns the next registered input audio/video device after d - * or NULL if d is the last one. - */ -AVInputFormat *av_input_audio_device_next(AVInputFormat *d); - -/** - * Video input devices iterator. - * - * If d is NULL, returns the first registered input audio/video device, - * if d is non-NULL, returns the next registered input audio/video device after d - * or NULL if d is the last one. - */ -AVInputFormat *av_input_video_device_next(AVInputFormat *d); - -/** - * Audio output devices iterator. - * - * If d is NULL, returns the first registered output audio/video device, - * if d is non-NULL, returns the next registered output audio/video device after d - * or NULL if d is the last one. - */ -AVOutputFormat *av_output_audio_device_next(AVOutputFormat *d); - -/** - * Video output devices iterator. - * - * If d is NULL, returns the first registered output audio/video device, - * if d is non-NULL, returns the next registered output audio/video device after d - * or NULL if d is the last one. - */ -AVOutputFormat *av_output_video_device_next(AVOutputFormat *d); - -typedef struct AVDeviceRect { - int x; /**< x coordinate of top left corner */ - int y; /**< y coordinate of top left corner */ - int width; /**< width */ - int height; /**< height */ -} AVDeviceRect; - -/** - * Message types used by avdevice_app_to_dev_control_message(). - */ -enum AVAppToDevMessageType { - /** - * Dummy message. - */ - AV_APP_TO_DEV_NONE = MKBETAG('N','O','N','E'), - - /** - * Window size change message. - * - * Message is sent to the device every time the application changes the size - * of the window device renders to. - * Message should also be sent right after window is created. - * - * data: AVDeviceRect: new window size. - */ - AV_APP_TO_DEV_WINDOW_SIZE = MKBETAG('G','E','O','M'), - - /** - * Repaint request message. - * - * Message is sent to the device when window has to be repainted. - * - * data: AVDeviceRect: area required to be repainted. - * NULL: whole area is required to be repainted. - */ - AV_APP_TO_DEV_WINDOW_REPAINT = MKBETAG('R','E','P','A'), - - /** - * Request pause/play. - * - * Application requests pause/unpause playback. - * Mostly usable with devices that have internal buffer. - * By default devices are not paused. - * - * data: NULL - */ - AV_APP_TO_DEV_PAUSE = MKBETAG('P', 'A', 'U', ' '), - AV_APP_TO_DEV_PLAY = MKBETAG('P', 'L', 'A', 'Y'), - AV_APP_TO_DEV_TOGGLE_PAUSE = MKBETAG('P', 'A', 'U', 'T'), - - /** - * Volume control message. - * - * Set volume level. It may be device-dependent if volume - * is changed per stream or system wide. Per stream volume - * change is expected when possible. - * - * data: double: new volume with range of 0.0 - 1.0. - */ - AV_APP_TO_DEV_SET_VOLUME = MKBETAG('S', 'V', 'O', 'L'), - - /** - * Mute control messages. - * - * Change mute state. It may be device-dependent if mute status - * is changed per stream or system wide. Per stream mute status - * change is expected when possible. - * - * data: NULL. - */ - AV_APP_TO_DEV_MUTE = MKBETAG(' ', 'M', 'U', 'T'), - AV_APP_TO_DEV_UNMUTE = MKBETAG('U', 'M', 'U', 'T'), - AV_APP_TO_DEV_TOGGLE_MUTE = MKBETAG('T', 'M', 'U', 'T'), - - /** - * Get volume/mute messages. - * - * Force the device to send AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED or - * AV_DEV_TO_APP_MUTE_STATE_CHANGED command respectively. - * - * data: NULL. - */ - AV_APP_TO_DEV_GET_VOLUME = MKBETAG('G', 'V', 'O', 'L'), - AV_APP_TO_DEV_GET_MUTE = MKBETAG('G', 'M', 'U', 'T'), -}; - -/** - * Message types used by avdevice_dev_to_app_control_message(). - */ -enum AVDevToAppMessageType { - /** - * Dummy message. - */ - AV_DEV_TO_APP_NONE = MKBETAG('N','O','N','E'), - - /** - * Create window buffer message. - * - * Device requests to create a window buffer. Exact meaning is device- - * and application-dependent. Message is sent before rendering first - * frame and all one-shot initializations should be done here. - * Application is allowed to ignore preferred window buffer size. - * - * @note: Application is obligated to inform about window buffer size - * with AV_APP_TO_DEV_WINDOW_SIZE message. - * - * data: AVDeviceRect: preferred size of the window buffer. - * NULL: no preferred size of the window buffer. - */ - AV_DEV_TO_APP_CREATE_WINDOW_BUFFER = MKBETAG('B','C','R','E'), - - /** - * Prepare window buffer message. - * - * Device requests to prepare a window buffer for rendering. - * Exact meaning is device- and application-dependent. - * Message is sent before rendering of each frame. - * - * data: NULL. - */ - AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER = MKBETAG('B','P','R','E'), - - /** - * Display window buffer message. - * - * Device requests to display a window buffer. - * Message is sent when new frame is ready to be displayed. - * Usually buffers need to be swapped in handler of this message. - * - * data: NULL. - */ - AV_DEV_TO_APP_DISPLAY_WINDOW_BUFFER = MKBETAG('B','D','I','S'), - - /** - * Destroy window buffer message. - * - * Device requests to destroy a window buffer. - * Message is sent when device is about to be destroyed and window - * buffer is not required anymore. - * - * data: NULL. - */ - AV_DEV_TO_APP_DESTROY_WINDOW_BUFFER = MKBETAG('B','D','E','S'), - - /** - * Buffer fullness status messages. - * - * Device signals buffer overflow/underflow. - * - * data: NULL. - */ - AV_DEV_TO_APP_BUFFER_OVERFLOW = MKBETAG('B','O','F','L'), - AV_DEV_TO_APP_BUFFER_UNDERFLOW = MKBETAG('B','U','F','L'), - - /** - * Buffer readable/writable. - * - * Device informs that buffer is readable/writable. - * When possible, device informs how many bytes can be read/write. - * - * @warning Device may not inform when number of bytes than can be read/write changes. - * - * data: int64_t: amount of bytes available to read/write. - * NULL: amount of bytes available to read/write is not known. - */ - AV_DEV_TO_APP_BUFFER_READABLE = MKBETAG('B','R','D',' '), - AV_DEV_TO_APP_BUFFER_WRITABLE = MKBETAG('B','W','R',' '), - - /** - * Mute state change message. - * - * Device informs that mute state has changed. - * - * data: int: 0 for not muted state, non-zero for muted state. - */ - AV_DEV_TO_APP_MUTE_STATE_CHANGED = MKBETAG('C','M','U','T'), - - /** - * Volume level change message. - * - * Device informs that volume level has changed. - * - * data: double: new volume with range of 0.0 - 1.0. - */ - AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED = MKBETAG('C','V','O','L'), -}; - -/** - * Send control message from application to device. - * - * @param s device context. - * @param type message type. - * @param data message data. Exact type depends on message type. - * @param data_size size of message data. - * @return >= 0 on success, negative on error. - * AVERROR(ENOSYS) when device doesn't implement handler of the message. - */ -int avdevice_app_to_dev_control_message(struct AVFormatContext *s, - enum AVAppToDevMessageType type, - void *data, size_t data_size); - -/** - * Send control message from device to application. - * - * @param s device context. - * @param type message type. - * @param data message data. Can be NULL. - * @param data_size size of message data. - * @return >= 0 on success, negative on error. - * AVERROR(ENOSYS) when application doesn't implement handler of the message. - */ -int avdevice_dev_to_app_control_message(struct AVFormatContext *s, - enum AVDevToAppMessageType type, - void *data, size_t data_size); - -/** - * Following API allows user to probe device capabilities (supported codecs, - * pixel formats, sample formats, resolutions, channel counts, etc). - * It is build on top op AVOption API. - * Queried capabilities make it possible to set up converters of video or audio - * parameters that fit to the device. - * - * List of capabilities that can be queried: - * - Capabilities valid for both audio and video devices: - * - codec: supported audio/video codecs. - * type: AV_OPT_TYPE_INT (AVCodecID value) - * - Capabilities valid for audio devices: - * - sample_format: supported sample formats. - * type: AV_OPT_TYPE_INT (AVSampleFormat value) - * - sample_rate: supported sample rates. - * type: AV_OPT_TYPE_INT - * - channels: supported number of channels. - * type: AV_OPT_TYPE_INT - * - channel_layout: supported channel layouts. - * type: AV_OPT_TYPE_INT64 - * - Capabilities valid for video devices: - * - pixel_format: supported pixel formats. - * type: AV_OPT_TYPE_INT (AVPixelFormat value) - * - window_size: supported window sizes (describes size of the window size presented to the user). - * type: AV_OPT_TYPE_IMAGE_SIZE - * - frame_size: supported frame sizes (describes size of provided video frames). - * type: AV_OPT_TYPE_IMAGE_SIZE - * - fps: supported fps values - * type: AV_OPT_TYPE_RATIONAL - * - * Value of the capability may be set by user using av_opt_set() function - * and AVDeviceCapabilitiesQuery object. Following queries will - * limit results to the values matching already set capabilities. - * For example, setting a codec may impact number of formats or fps values - * returned during next query. Setting invalid value may limit results to zero. - * - * Example of the usage basing on opengl output device: - * - * @code - * AVFormatContext *oc = NULL; - * AVDeviceCapabilitiesQuery *caps = NULL; - * AVOptionRanges *ranges; - * int ret; - * - * if ((ret = avformat_alloc_output_context2(&oc, NULL, "opengl", NULL)) < 0) - * goto fail; - * if (avdevice_capabilities_create(&caps, oc, NULL) < 0) - * goto fail; - * - * //query codecs - * if (av_opt_query_ranges(&ranges, caps, "codec", AV_OPT_MULTI_COMPONENT_RANGE)) < 0) - * goto fail; - * //pick codec here and set it - * av_opt_set(caps, "codec", AV_CODEC_ID_RAWVIDEO, 0); - * - * //query format - * if (av_opt_query_ranges(&ranges, caps, "pixel_format", AV_OPT_MULTI_COMPONENT_RANGE)) < 0) - * goto fail; - * //pick format here and set it - * av_opt_set(caps, "pixel_format", AV_PIX_FMT_YUV420P, 0); - * - * //query and set more capabilities - * - * fail: - * //clean up code - * avdevice_capabilities_free(&query, oc); - * avformat_free_context(oc); - * @endcode - */ - -/** - * Structure describes device capabilities. - * - * It is used by devices in conjunction with av_device_capabilities AVOption table - * to implement capabilities probing API based on AVOption API. Should not be used directly. - */ -typedef struct AVDeviceCapabilitiesQuery { - const AVClass *av_class; - AVFormatContext *device_context; - enum AVCodecID codec; - enum AVSampleFormat sample_format; - enum AVPixelFormat pixel_format; - int sample_rate; - int channels; - int64_t channel_layout; - int window_width; - int window_height; - int frame_width; - int frame_height; - AVRational fps; -} AVDeviceCapabilitiesQuery; - -/** - * AVOption table used by devices to implement device capabilities API. Should not be used by a user. - */ -extern const AVOption av_device_capabilities[]; - -/** - * Initialize capabilities probing API based on AVOption API. - * - * avdevice_capabilities_free() must be called when query capabilities API is - * not used anymore. - * - * @param[out] caps Device capabilities data. Pointer to a NULL pointer must be passed. - * @param s Context of the device. - * @param device_options An AVDictionary filled with device-private options. - * On return this parameter will be destroyed and replaced with a dict - * containing options that were not found. May be NULL. - * The same options must be passed later to avformat_write_header() for output - * devices or avformat_open_input() for input devices, or at any other place - * that affects device-private options. - * - * @return >= 0 on success, negative otherwise. - */ -int avdevice_capabilities_create(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s, - AVDictionary **device_options); - -/** - * Free resources created by avdevice_capabilities_create() - * - * @param caps Device capabilities data to be freed. - * @param s Context of the device. - */ -void avdevice_capabilities_free(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s); - -/** - * Structure describes basic parameters of the device. - */ -typedef struct AVDeviceInfo { - char *device_name; /**< device name, format depends on device */ - char *device_description; /**< human friendly name */ -} AVDeviceInfo; - -/** - * List of devices. - */ -typedef struct AVDeviceInfoList { - AVDeviceInfo **devices; /**< list of autodetected devices */ - int nb_devices; /**< number of autodetected devices */ - int default_device; /**< index of default device or -1 if no default */ -} AVDeviceInfoList; - -/** - * List devices. - * - * Returns available device names and their parameters. - * - * @note: Some devices may accept system-dependent device names that cannot be - * autodetected. The list returned by this function cannot be assumed to - * be always completed. - * - * @param s device context. - * @param[out] device_list list of autodetected devices. - * @return count of autodetected devices, negative on error. - */ -int avdevice_list_devices(struct AVFormatContext *s, AVDeviceInfoList **device_list); - -/** - * Convenient function to free result of avdevice_list_devices(). - * - * @param devices device list to be freed. - */ -void avdevice_free_list_devices(AVDeviceInfoList **device_list); - -/** - * List devices. - * - * Returns available device names and their parameters. - * These are convinient wrappers for avdevice_list_devices(). - * Device context is allocated and deallocated internally. - * - * @param device device format. May be NULL if device name is set. - * @param device_name device name. May be NULL if device format is set. - * @param device_options An AVDictionary filled with device-private options. May be NULL. - * The same options must be passed later to avformat_write_header() for output - * devices or avformat_open_input() for input devices, or at any other place - * that affects device-private options. - * @param[out] device_list list of autodetected devices - * @return count of autodetected devices, negative on error. - * @note device argument takes precedence over device_name when both are set. - */ -int avdevice_list_input_sources(struct AVInputFormat *device, const char *device_name, - AVDictionary *device_options, AVDeviceInfoList **device_list); -int avdevice_list_output_sinks(struct AVOutputFormat *device, const char *device_name, - AVDictionary *device_options, AVDeviceInfoList **device_list); - -/** - * @} - */ - -#endif /* AVDEVICE_AVDEVICE_H */ diff --git a/libs/mac/include/libavdevice/version.h b/libs/mac/include/libavdevice/version.h deleted file mode 100644 index 99041492..00000000 --- a/libs/mac/include/libavdevice/version.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVDEVICE_VERSION_H -#define AVDEVICE_VERSION_H - -/** - * @file - * @ingroup lavd - * Libavdevice version macros - */ - -#include "libavutil/version.h" - -#define LIBAVDEVICE_VERSION_MAJOR 58 -#define LIBAVDEVICE_VERSION_MINOR 4 -#define LIBAVDEVICE_VERSION_MICRO 101 - -#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \ - LIBAVDEVICE_VERSION_MINOR, \ - LIBAVDEVICE_VERSION_MICRO) -#define LIBAVDEVICE_VERSION AV_VERSION(LIBAVDEVICE_VERSION_MAJOR, \ - LIBAVDEVICE_VERSION_MINOR, \ - LIBAVDEVICE_VERSION_MICRO) -#define LIBAVDEVICE_BUILD LIBAVDEVICE_VERSION_INT - -#define LIBAVDEVICE_IDENT "Lavd" AV_STRINGIFY(LIBAVDEVICE_VERSION) - -/** - * FF_API_* defines may be placed below to indicate public API that will be - * dropped at a future version bump. The defines themselves are not part of - * the public API and may change, break or disappear at any time. - */ - -#endif /* AVDEVICE_VERSION_H */ diff --git a/libs/mac/include/libavfilter/avfilter.h b/libs/mac/include/libavfilter/avfilter.h deleted file mode 100644 index 9d70e711..00000000 --- a/libs/mac/include/libavfilter/avfilter.h +++ /dev/null @@ -1,1168 +0,0 @@ -/* - * filter layer - * Copyright (c) 2007 Bobby Bingham - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFILTER_AVFILTER_H -#define AVFILTER_AVFILTER_H - -/** - * @file - * @ingroup lavfi - * Main libavfilter public API header - */ - -/** - * @defgroup lavfi libavfilter - * Graph-based frame editing library. - * - * @{ - */ - -#include - -#include "libavutil/attributes.h" -#include "libavutil/avutil.h" -#include "libavutil/buffer.h" -#include "libavutil/dict.h" -#include "libavutil/frame.h" -#include "libavutil/log.h" -#include "libavutil/samplefmt.h" -#include "libavutil/pixfmt.h" -#include "libavutil/rational.h" - -#include "libavfilter/version.h" - -/** - * Return the LIBAVFILTER_VERSION_INT constant. - */ -unsigned avfilter_version(void); - -/** - * Return the libavfilter build-time configuration. - */ -const char *avfilter_configuration(void); - -/** - * Return the libavfilter license. - */ -const char *avfilter_license(void); - -typedef struct AVFilterContext AVFilterContext; -typedef struct AVFilterLink AVFilterLink; -typedef struct AVFilterPad AVFilterPad; -typedef struct AVFilterFormats AVFilterFormats; - -/** - * Get the number of elements in a NULL-terminated array of AVFilterPads (e.g. - * AVFilter.inputs/outputs). - */ -int avfilter_pad_count(const AVFilterPad *pads); - -/** - * Get the name of an AVFilterPad. - * - * @param pads an array of AVFilterPads - * @param pad_idx index of the pad in the array it; is the caller's - * responsibility to ensure the index is valid - * - * @return name of the pad_idx'th pad in pads - */ -const char *avfilter_pad_get_name(const AVFilterPad *pads, int pad_idx); - -/** - * Get the type of an AVFilterPad. - * - * @param pads an array of AVFilterPads - * @param pad_idx index of the pad in the array; it is the caller's - * responsibility to ensure the index is valid - * - * @return type of the pad_idx'th pad in pads - */ -enum AVMediaType avfilter_pad_get_type(const AVFilterPad *pads, int pad_idx); - -/** - * The number of the filter inputs is not determined just by AVFilter.inputs. - * The filter might add additional inputs during initialization depending on the - * options supplied to it. - */ -#define AVFILTER_FLAG_DYNAMIC_INPUTS (1 << 0) -/** - * The number of the filter outputs is not determined just by AVFilter.outputs. - * The filter might add additional outputs during initialization depending on - * the options supplied to it. - */ -#define AVFILTER_FLAG_DYNAMIC_OUTPUTS (1 << 1) -/** - * The filter supports multithreading by splitting frames into multiple parts - * and processing them concurrently. - */ -#define AVFILTER_FLAG_SLICE_THREADS (1 << 2) -/** - * Some filters support a generic "enable" expression option that can be used - * to enable or disable a filter in the timeline. Filters supporting this - * option have this flag set. When the enable expression is false, the default - * no-op filter_frame() function is called in place of the filter_frame() - * callback defined on each input pad, thus the frame is passed unchanged to - * the next filters. - */ -#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC (1 << 16) -/** - * Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will - * have its filter_frame() callback(s) called as usual even when the enable - * expression is false. The filter will disable filtering within the - * filter_frame() callback(s) itself, for example executing code depending on - * the AVFilterContext->is_disabled value. - */ -#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL (1 << 17) -/** - * Handy mask to test whether the filter supports or no the timeline feature - * (internally or generically). - */ -#define AVFILTER_FLAG_SUPPORT_TIMELINE (AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL) - -/** - * Filter definition. This defines the pads a filter contains, and all the - * callback functions used to interact with the filter. - */ -typedef struct AVFilter { - /** - * Filter name. Must be non-NULL and unique among filters. - */ - const char *name; - - /** - * A description of the filter. May be NULL. - * - * You should use the NULL_IF_CONFIG_SMALL() macro to define it. - */ - const char *description; - - /** - * List of inputs, terminated by a zeroed element. - * - * NULL if there are no (static) inputs. Instances of filters with - * AVFILTER_FLAG_DYNAMIC_INPUTS set may have more inputs than present in - * this list. - */ - const AVFilterPad *inputs; - /** - * List of outputs, terminated by a zeroed element. - * - * NULL if there are no (static) outputs. Instances of filters with - * AVFILTER_FLAG_DYNAMIC_OUTPUTS set may have more outputs than present in - * this list. - */ - const AVFilterPad *outputs; - - /** - * A class for the private data, used to declare filter private AVOptions. - * This field is NULL for filters that do not declare any options. - * - * If this field is non-NULL, the first member of the filter private data - * must be a pointer to AVClass, which will be set by libavfilter generic - * code to this class. - */ - const AVClass *priv_class; - - /** - * A combination of AVFILTER_FLAG_* - */ - int flags; - - /***************************************************************** - * All fields below this line are not part of the public API. They - * may not be used outside of libavfilter and can be changed and - * removed at will. - * New public fields should be added right above. - ***************************************************************** - */ - - /** - * Filter pre-initialization function - * - * This callback will be called immediately after the filter context is - * allocated, to allow allocating and initing sub-objects. - * - * If this callback is not NULL, the uninit callback will be called on - * allocation failure. - * - * @return 0 on success, - * AVERROR code on failure (but the code will be - * dropped and treated as ENOMEM by the calling code) - */ - int (*preinit)(AVFilterContext *ctx); - - /** - * Filter initialization function. - * - * This callback will be called only once during the filter lifetime, after - * all the options have been set, but before links between filters are - * established and format negotiation is done. - * - * Basic filter initialization should be done here. Filters with dynamic - * inputs and/or outputs should create those inputs/outputs here based on - * provided options. No more changes to this filter's inputs/outputs can be - * done after this callback. - * - * This callback must not assume that the filter links exist or frame - * parameters are known. - * - * @ref AVFilter.uninit "uninit" is guaranteed to be called even if - * initialization fails, so this callback does not have to clean up on - * failure. - * - * @return 0 on success, a negative AVERROR on failure - */ - int (*init)(AVFilterContext *ctx); - - /** - * Should be set instead of @ref AVFilter.init "init" by the filters that - * want to pass a dictionary of AVOptions to nested contexts that are - * allocated during init. - * - * On return, the options dict should be freed and replaced with one that - * contains all the options which could not be processed by this filter (or - * with NULL if all the options were processed). - * - * Otherwise the semantics is the same as for @ref AVFilter.init "init". - */ - int (*init_dict)(AVFilterContext *ctx, AVDictionary **options); - - /** - * Filter uninitialization function. - * - * Called only once right before the filter is freed. Should deallocate any - * memory held by the filter, release any buffer references, etc. It does - * not need to deallocate the AVFilterContext.priv memory itself. - * - * This callback may be called even if @ref AVFilter.init "init" was not - * called or failed, so it must be prepared to handle such a situation. - */ - void (*uninit)(AVFilterContext *ctx); - - /** - * Query formats supported by the filter on its inputs and outputs. - * - * This callback is called after the filter is initialized (so the inputs - * and outputs are fixed), shortly before the format negotiation. This - * callback may be called more than once. - * - * This callback must set AVFilterLink.out_formats on every input link and - * AVFilterLink.in_formats on every output link to a list of pixel/sample - * formats that the filter supports on that link. For audio links, this - * filter must also set @ref AVFilterLink.in_samplerates "in_samplerates" / - * @ref AVFilterLink.out_samplerates "out_samplerates" and - * @ref AVFilterLink.in_channel_layouts "in_channel_layouts" / - * @ref AVFilterLink.out_channel_layouts "out_channel_layouts" analogously. - * - * This callback may be NULL for filters with one input, in which case - * libavfilter assumes that it supports all input formats and preserves - * them on output. - * - * @return zero on success, a negative value corresponding to an - * AVERROR code otherwise - */ - int (*query_formats)(AVFilterContext *); - - int priv_size; ///< size of private data to allocate for the filter - - int flags_internal; ///< Additional flags for avfilter internal use only. - - /** - * Used by the filter registration system. Must not be touched by any other - * code. - */ - struct AVFilter *next; - - /** - * Make the filter instance process a command. - * - * @param cmd the command to process, for handling simplicity all commands must be alphanumeric only - * @param arg the argument for the command - * @param res a buffer with size res_size where the filter(s) can return a response. This must not change when the command is not supported. - * @param flags if AVFILTER_CMD_FLAG_FAST is set and the command would be - * time consuming then a filter should treat it like an unsupported command - * - * @returns >=0 on success otherwise an error code. - * AVERROR(ENOSYS) on unsupported commands - */ - int (*process_command)(AVFilterContext *, const char *cmd, const char *arg, char *res, int res_len, int flags); - - /** - * Filter initialization function, alternative to the init() - * callback. Args contains the user-supplied parameters, opaque is - * used for providing binary data. - */ - int (*init_opaque)(AVFilterContext *ctx, void *opaque); - - /** - * Filter activation function. - * - * Called when any processing is needed from the filter, instead of any - * filter_frame and request_frame on pads. - * - * The function must examine inlinks and outlinks and perform a single - * step of processing. If there is nothing to do, the function must do - * nothing and not return an error. If more steps are or may be - * possible, it must use ff_filter_set_ready() to schedule another - * activation. - */ - int (*activate)(AVFilterContext *ctx); -} AVFilter; - -/** - * Process multiple parts of the frame concurrently. - */ -#define AVFILTER_THREAD_SLICE (1 << 0) - -typedef struct AVFilterInternal AVFilterInternal; - -/** An instance of a filter */ -struct AVFilterContext { - const AVClass *av_class; ///< needed for av_log() and filters common options - - const AVFilter *filter; ///< the AVFilter of which this is an instance - - char *name; ///< name of this filter instance - - AVFilterPad *input_pads; ///< array of input pads - AVFilterLink **inputs; ///< array of pointers to input links - unsigned nb_inputs; ///< number of input pads - - AVFilterPad *output_pads; ///< array of output pads - AVFilterLink **outputs; ///< array of pointers to output links - unsigned nb_outputs; ///< number of output pads - - void *priv; ///< private data for use by the filter - - struct AVFilterGraph *graph; ///< filtergraph this filter belongs to - - /** - * Type of multithreading being allowed/used. A combination of - * AVFILTER_THREAD_* flags. - * - * May be set by the caller before initializing the filter to forbid some - * or all kinds of multithreading for this filter. The default is allowing - * everything. - * - * When the filter is initialized, this field is combined using bit AND with - * AVFilterGraph.thread_type to get the final mask used for determining - * allowed threading types. I.e. a threading type needs to be set in both - * to be allowed. - * - * After the filter is initialized, libavfilter sets this field to the - * threading type that is actually used (0 for no multithreading). - */ - int thread_type; - - /** - * An opaque struct for libavfilter internal use. - */ - AVFilterInternal *internal; - - struct AVFilterCommand *command_queue; - - char *enable_str; ///< enable expression string - void *enable; ///< parsed expression (AVExpr*) - double *var_values; ///< variable values for the enable expression - int is_disabled; ///< the enabled state from the last expression evaluation - - /** - * For filters which will create hardware frames, sets the device the - * filter should create them in. All other filters will ignore this field: - * in particular, a filter which consumes or processes hardware frames will - * instead use the hw_frames_ctx field in AVFilterLink to carry the - * hardware context information. - */ - AVBufferRef *hw_device_ctx; - - /** - * Max number of threads allowed in this filter instance. - * If <= 0, its value is ignored. - * Overrides global number of threads set per filter graph. - */ - int nb_threads; - - /** - * Ready status of the filter. - * A non-0 value means that the filter needs activating; - * a higher value suggests a more urgent activation. - */ - unsigned ready; - - /** - * Sets the number of extra hardware frames which the filter will - * allocate on its output links for use in following filters or by - * the caller. - * - * Some hardware filters require all frames that they will use for - * output to be defined in advance before filtering starts. For such - * filters, any hardware frame pools used for output must therefore be - * of fixed size. The extra frames set here are on top of any number - * that the filter needs internally in order to operate normally. - * - * This field must be set before the graph containing this filter is - * configured. - */ - int extra_hw_frames; -}; - -/** - * A link between two filters. This contains pointers to the source and - * destination filters between which this link exists, and the indexes of - * the pads involved. In addition, this link also contains the parameters - * which have been negotiated and agreed upon between the filter, such as - * image dimensions, format, etc. - * - * Applications must not normally access the link structure directly. - * Use the buffersrc and buffersink API instead. - * In the future, access to the header may be reserved for filters - * implementation. - */ -struct AVFilterLink { - AVFilterContext *src; ///< source filter - AVFilterPad *srcpad; ///< output pad on the source filter - - AVFilterContext *dst; ///< dest filter - AVFilterPad *dstpad; ///< input pad on the dest filter - - enum AVMediaType type; ///< filter media type - - /* These parameters apply only to video */ - int w; ///< agreed upon image width - int h; ///< agreed upon image height - AVRational sample_aspect_ratio; ///< agreed upon sample aspect ratio - /* These parameters apply only to audio */ - uint64_t channel_layout; ///< channel layout of current buffer (see libavutil/channel_layout.h) - int sample_rate; ///< samples per second - - int format; ///< agreed upon media format - - /** - * Define the time base used by the PTS of the frames/samples - * which will pass through this link. - * During the configuration stage, each filter is supposed to - * change only the output timebase, while the timebase of the - * input link is assumed to be an unchangeable property. - */ - AVRational time_base; - - /***************************************************************** - * All fields below this line are not part of the public API. They - * may not be used outside of libavfilter and can be changed and - * removed at will. - * New public fields should be added right above. - ***************************************************************** - */ - /** - * Lists of formats and channel layouts supported by the input and output - * filters respectively. These lists are used for negotiating the format - * to actually be used, which will be loaded into the format and - * channel_layout members, above, when chosen. - * - */ - AVFilterFormats *in_formats; - AVFilterFormats *out_formats; - - /** - * Lists of channel layouts and sample rates used for automatic - * negotiation. - */ - AVFilterFormats *in_samplerates; - AVFilterFormats *out_samplerates; - struct AVFilterChannelLayouts *in_channel_layouts; - struct AVFilterChannelLayouts *out_channel_layouts; - - /** - * Audio only, the destination filter sets this to a non-zero value to - * request that buffers with the given number of samples should be sent to - * it. AVFilterPad.needs_fifo must also be set on the corresponding input - * pad. - * Last buffer before EOF will be padded with silence. - */ - int request_samples; - - /** stage of the initialization of the link properties (dimensions, etc) */ - enum { - AVLINK_UNINIT = 0, ///< not started - AVLINK_STARTINIT, ///< started, but incomplete - AVLINK_INIT ///< complete - } init_state; - - /** - * Graph the filter belongs to. - */ - struct AVFilterGraph *graph; - - /** - * Current timestamp of the link, as defined by the most recent - * frame(s), in link time_base units. - */ - int64_t current_pts; - - /** - * Current timestamp of the link, as defined by the most recent - * frame(s), in AV_TIME_BASE units. - */ - int64_t current_pts_us; - - /** - * Index in the age array. - */ - int age_index; - - /** - * Frame rate of the stream on the link, or 1/0 if unknown or variable; - * if left to 0/0, will be automatically copied from the first input - * of the source filter if it exists. - * - * Sources should set it to the best estimation of the real frame rate. - * If the source frame rate is unknown or variable, set this to 1/0. - * Filters should update it if necessary depending on their function. - * Sinks can use it to set a default output frame rate. - * It is similar to the r_frame_rate field in AVStream. - */ - AVRational frame_rate; - - /** - * Buffer partially filled with samples to achieve a fixed/minimum size. - */ - AVFrame *partial_buf; - - /** - * Size of the partial buffer to allocate. - * Must be between min_samples and max_samples. - */ - int partial_buf_size; - - /** - * Minimum number of samples to filter at once. If filter_frame() is - * called with fewer samples, it will accumulate them in partial_buf. - * This field and the related ones must not be changed after filtering - * has started. - * If 0, all related fields are ignored. - */ - int min_samples; - - /** - * Maximum number of samples to filter at once. If filter_frame() is - * called with more samples, it will split them. - */ - int max_samples; - - /** - * Number of channels. - */ - int channels; - - /** - * Link processing flags. - */ - unsigned flags; - - /** - * Number of past frames sent through the link. - */ - int64_t frame_count_in, frame_count_out; - - /** - * A pointer to a FFFramePool struct. - */ - void *frame_pool; - - /** - * True if a frame is currently wanted on the output of this filter. - * Set when ff_request_frame() is called by the output, - * cleared when a frame is filtered. - */ - int frame_wanted_out; - - /** - * For hwaccel pixel formats, this should be a reference to the - * AVHWFramesContext describing the frames. - */ - AVBufferRef *hw_frames_ctx; - -#ifndef FF_INTERNAL_FIELDS - - /** - * Internal structure members. - * The fields below this limit are internal for libavfilter's use - * and must in no way be accessed by applications. - */ - char reserved[0xF000]; - -#else /* FF_INTERNAL_FIELDS */ - - /** - * Queue of frames waiting to be filtered. - */ - FFFrameQueue fifo; - - /** - * If set, the source filter can not generate a frame as is. - * The goal is to avoid repeatedly calling the request_frame() method on - * the same link. - */ - int frame_blocked_in; - - /** - * Link input status. - * If not zero, all attempts of filter_frame will fail with the - * corresponding code. - */ - int status_in; - - /** - * Timestamp of the input status change. - */ - int64_t status_in_pts; - - /** - * Link output status. - * If not zero, all attempts of request_frame will fail with the - * corresponding code. - */ - int status_out; - -#endif /* FF_INTERNAL_FIELDS */ - -}; - -/** - * Link two filters together. - * - * @param src the source filter - * @param srcpad index of the output pad on the source filter - * @param dst the destination filter - * @param dstpad index of the input pad on the destination filter - * @return zero on success - */ -int avfilter_link(AVFilterContext *src, unsigned srcpad, - AVFilterContext *dst, unsigned dstpad); - -/** - * Free the link in *link, and set its pointer to NULL. - */ -void avfilter_link_free(AVFilterLink **link); - -#if FF_API_FILTER_GET_SET -/** - * Get the number of channels of a link. - * @deprecated Use av_buffersink_get_channels() - */ -attribute_deprecated -int avfilter_link_get_channels(AVFilterLink *link); -#endif - -/** - * Set the closed field of a link. - * @deprecated applications are not supposed to mess with links, they should - * close the sinks. - */ -attribute_deprecated -void avfilter_link_set_closed(AVFilterLink *link, int closed); - -/** - * Negotiate the media format, dimensions, etc of all inputs to a filter. - * - * @param filter the filter to negotiate the properties for its inputs - * @return zero on successful negotiation - */ -int avfilter_config_links(AVFilterContext *filter); - -#define AVFILTER_CMD_FLAG_ONE 1 ///< Stop once a filter understood the command (for target=all for example), fast filters are favored automatically -#define AVFILTER_CMD_FLAG_FAST 2 ///< Only execute command when its fast (like a video out that supports contrast adjustment in hw) - -/** - * Make the filter instance process a command. - * It is recommended to use avfilter_graph_send_command(). - */ -int avfilter_process_command(AVFilterContext *filter, const char *cmd, const char *arg, char *res, int res_len, int flags); - -/** - * Iterate over all registered filters. - * - * @param opaque a pointer where libavfilter will store the iteration state. Must - * point to NULL to start the iteration. - * - * @return the next registered filter or NULL when the iteration is - * finished - */ -const AVFilter *av_filter_iterate(void **opaque); - -#if FF_API_NEXT -/** Initialize the filter system. Register all builtin filters. */ -attribute_deprecated -void avfilter_register_all(void); - -/** - * Register a filter. This is only needed if you plan to use - * avfilter_get_by_name later to lookup the AVFilter structure by name. A - * filter can still by instantiated with avfilter_graph_alloc_filter even if it - * is not registered. - * - * @param filter the filter to register - * @return 0 if the registration was successful, a negative value - * otherwise - */ -attribute_deprecated -int avfilter_register(AVFilter *filter); - -/** - * Iterate over all registered filters. - * @return If prev is non-NULL, next registered filter after prev or NULL if - * prev is the last filter. If prev is NULL, return the first registered filter. - */ -attribute_deprecated -const AVFilter *avfilter_next(const AVFilter *prev); -#endif - -/** - * Get a filter definition matching the given name. - * - * @param name the filter name to find - * @return the filter definition, if any matching one is registered. - * NULL if none found. - */ -const AVFilter *avfilter_get_by_name(const char *name); - - -/** - * Initialize a filter with the supplied parameters. - * - * @param ctx uninitialized filter context to initialize - * @param args Options to initialize the filter with. This must be a - * ':'-separated list of options in the 'key=value' form. - * May be NULL if the options have been set directly using the - * AVOptions API or there are no options that need to be set. - * @return 0 on success, a negative AVERROR on failure - */ -int avfilter_init_str(AVFilterContext *ctx, const char *args); - -/** - * Initialize a filter with the supplied dictionary of options. - * - * @param ctx uninitialized filter context to initialize - * @param options An AVDictionary filled with options for this filter. On - * return this parameter will be destroyed and replaced with - * a dict containing options that were not found. This dictionary - * must be freed by the caller. - * May be NULL, then this function is equivalent to - * avfilter_init_str() with the second parameter set to NULL. - * @return 0 on success, a negative AVERROR on failure - * - * @note This function and avfilter_init_str() do essentially the same thing, - * the difference is in manner in which the options are passed. It is up to the - * calling code to choose whichever is more preferable. The two functions also - * behave differently when some of the provided options are not declared as - * supported by the filter. In such a case, avfilter_init_str() will fail, but - * this function will leave those extra options in the options AVDictionary and - * continue as usual. - */ -int avfilter_init_dict(AVFilterContext *ctx, AVDictionary **options); - -/** - * Free a filter context. This will also remove the filter from its - * filtergraph's list of filters. - * - * @param filter the filter to free - */ -void avfilter_free(AVFilterContext *filter); - -/** - * Insert a filter in the middle of an existing link. - * - * @param link the link into which the filter should be inserted - * @param filt the filter to be inserted - * @param filt_srcpad_idx the input pad on the filter to connect - * @param filt_dstpad_idx the output pad on the filter to connect - * @return zero on success - */ -int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt, - unsigned filt_srcpad_idx, unsigned filt_dstpad_idx); - -/** - * @return AVClass for AVFilterContext. - * - * @see av_opt_find(). - */ -const AVClass *avfilter_get_class(void); - -typedef struct AVFilterGraphInternal AVFilterGraphInternal; - -/** - * A function pointer passed to the @ref AVFilterGraph.execute callback to be - * executed multiple times, possibly in parallel. - * - * @param ctx the filter context the job belongs to - * @param arg an opaque parameter passed through from @ref - * AVFilterGraph.execute - * @param jobnr the index of the job being executed - * @param nb_jobs the total number of jobs - * - * @return 0 on success, a negative AVERROR on error - */ -typedef int (avfilter_action_func)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); - -/** - * A function executing multiple jobs, possibly in parallel. - * - * @param ctx the filter context to which the jobs belong - * @param func the function to be called multiple times - * @param arg the argument to be passed to func - * @param ret a nb_jobs-sized array to be filled with return values from each - * invocation of func - * @param nb_jobs the number of jobs to execute - * - * @return 0 on success, a negative AVERROR on error - */ -typedef int (avfilter_execute_func)(AVFilterContext *ctx, avfilter_action_func *func, - void *arg, int *ret, int nb_jobs); - -typedef struct AVFilterGraph { - const AVClass *av_class; - AVFilterContext **filters; - unsigned nb_filters; - - char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters -#if FF_API_LAVR_OPTS - attribute_deprecated char *resample_lavr_opts; ///< libavresample options to use for the auto-inserted resample filters -#endif - - /** - * Type of multithreading allowed for filters in this graph. A combination - * of AVFILTER_THREAD_* flags. - * - * May be set by the caller at any point, the setting will apply to all - * filters initialized after that. The default is allowing everything. - * - * When a filter in this graph is initialized, this field is combined using - * bit AND with AVFilterContext.thread_type to get the final mask used for - * determining allowed threading types. I.e. a threading type needs to be - * set in both to be allowed. - */ - int thread_type; - - /** - * Maximum number of threads used by filters in this graph. May be set by - * the caller before adding any filters to the filtergraph. Zero (the - * default) means that the number of threads is determined automatically. - */ - int nb_threads; - - /** - * Opaque object for libavfilter internal use. - */ - AVFilterGraphInternal *internal; - - /** - * Opaque user data. May be set by the caller to an arbitrary value, e.g. to - * be used from callbacks like @ref AVFilterGraph.execute. - * Libavfilter will not touch this field in any way. - */ - void *opaque; - - /** - * This callback may be set by the caller immediately after allocating the - * graph and before adding any filters to it, to provide a custom - * multithreading implementation. - * - * If set, filters with slice threading capability will call this callback - * to execute multiple jobs in parallel. - * - * If this field is left unset, libavfilter will use its internal - * implementation, which may or may not be multithreaded depending on the - * platform and build options. - */ - avfilter_execute_func *execute; - - char *aresample_swr_opts; ///< swr options to use for the auto-inserted aresample filters, Access ONLY through AVOptions - - /** - * Private fields - * - * The following fields are for internal use only. - * Their type, offset, number and semantic can change without notice. - */ - - AVFilterLink **sink_links; - int sink_links_count; - - unsigned disable_auto_convert; -} AVFilterGraph; - -/** - * Allocate a filter graph. - * - * @return the allocated filter graph on success or NULL. - */ -AVFilterGraph *avfilter_graph_alloc(void); - -/** - * Create a new filter instance in a filter graph. - * - * @param graph graph in which the new filter will be used - * @param filter the filter to create an instance of - * @param name Name to give to the new instance (will be copied to - * AVFilterContext.name). This may be used by the caller to identify - * different filters, libavfilter itself assigns no semantics to - * this parameter. May be NULL. - * - * @return the context of the newly created filter instance (note that it is - * also retrievable directly through AVFilterGraph.filters or with - * avfilter_graph_get_filter()) on success or NULL on failure. - */ -AVFilterContext *avfilter_graph_alloc_filter(AVFilterGraph *graph, - const AVFilter *filter, - const char *name); - -/** - * Get a filter instance identified by instance name from graph. - * - * @param graph filter graph to search through. - * @param name filter instance name (should be unique in the graph). - * @return the pointer to the found filter instance or NULL if it - * cannot be found. - */ -AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, const char *name); - -/** - * Create and add a filter instance into an existing graph. - * The filter instance is created from the filter filt and inited - * with the parameters args and opaque. - * - * In case of success put in *filt_ctx the pointer to the created - * filter instance, otherwise set *filt_ctx to NULL. - * - * @param name the instance name to give to the created filter instance - * @param graph_ctx the filter graph - * @return a negative AVERROR error code in case of failure, a non - * negative value otherwise - */ -int avfilter_graph_create_filter(AVFilterContext **filt_ctx, const AVFilter *filt, - const char *name, const char *args, void *opaque, - AVFilterGraph *graph_ctx); - -/** - * Enable or disable automatic format conversion inside the graph. - * - * Note that format conversion can still happen inside explicitly inserted - * scale and aresample filters. - * - * @param flags any of the AVFILTER_AUTO_CONVERT_* constants - */ -void avfilter_graph_set_auto_convert(AVFilterGraph *graph, unsigned flags); - -enum { - AVFILTER_AUTO_CONVERT_ALL = 0, /**< all automatic conversions enabled */ - AVFILTER_AUTO_CONVERT_NONE = -1, /**< all automatic conversions disabled */ -}; - -/** - * Check validity and configure all the links and formats in the graph. - * - * @param graphctx the filter graph - * @param log_ctx context used for logging - * @return >= 0 in case of success, a negative AVERROR code otherwise - */ -int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx); - -/** - * Free a graph, destroy its links, and set *graph to NULL. - * If *graph is NULL, do nothing. - */ -void avfilter_graph_free(AVFilterGraph **graph); - -/** - * A linked-list of the inputs/outputs of the filter chain. - * - * This is mainly useful for avfilter_graph_parse() / avfilter_graph_parse2(), - * where it is used to communicate open (unlinked) inputs and outputs from and - * to the caller. - * This struct specifies, per each not connected pad contained in the graph, the - * filter context and the pad index required for establishing a link. - */ -typedef struct AVFilterInOut { - /** unique name for this input/output in the list */ - char *name; - - /** filter context associated to this input/output */ - AVFilterContext *filter_ctx; - - /** index of the filt_ctx pad to use for linking */ - int pad_idx; - - /** next input/input in the list, NULL if this is the last */ - struct AVFilterInOut *next; -} AVFilterInOut; - -/** - * Allocate a single AVFilterInOut entry. - * Must be freed with avfilter_inout_free(). - * @return allocated AVFilterInOut on success, NULL on failure. - */ -AVFilterInOut *avfilter_inout_alloc(void); - -/** - * Free the supplied list of AVFilterInOut and set *inout to NULL. - * If *inout is NULL, do nothing. - */ -void avfilter_inout_free(AVFilterInOut **inout); - -/** - * Add a graph described by a string to a graph. - * - * @note The caller must provide the lists of inputs and outputs, - * which therefore must be known before calling the function. - * - * @note The inputs parameter describes inputs of the already existing - * part of the graph; i.e. from the point of view of the newly created - * part, they are outputs. Similarly the outputs parameter describes - * outputs of the already existing filters, which are provided as - * inputs to the parsed filters. - * - * @param graph the filter graph where to link the parsed graph context - * @param filters string to be parsed - * @param inputs linked list to the inputs of the graph - * @param outputs linked list to the outputs of the graph - * @return zero on success, a negative AVERROR code on error - */ -int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, - AVFilterInOut *inputs, AVFilterInOut *outputs, - void *log_ctx); - -/** - * Add a graph described by a string to a graph. - * - * In the graph filters description, if the input label of the first - * filter is not specified, "in" is assumed; if the output label of - * the last filter is not specified, "out" is assumed. - * - * @param graph the filter graph where to link the parsed graph context - * @param filters string to be parsed - * @param inputs pointer to a linked list to the inputs of the graph, may be NULL. - * If non-NULL, *inputs is updated to contain the list of open inputs - * after the parsing, should be freed with avfilter_inout_free(). - * @param outputs pointer to a linked list to the outputs of the graph, may be NULL. - * If non-NULL, *outputs is updated to contain the list of open outputs - * after the parsing, should be freed with avfilter_inout_free(). - * @return non negative on success, a negative AVERROR code on error - */ -int avfilter_graph_parse_ptr(AVFilterGraph *graph, const char *filters, - AVFilterInOut **inputs, AVFilterInOut **outputs, - void *log_ctx); - -/** - * Add a graph described by a string to a graph. - * - * @param[in] graph the filter graph where to link the parsed graph context - * @param[in] filters string to be parsed - * @param[out] inputs a linked list of all free (unlinked) inputs of the - * parsed graph will be returned here. It is to be freed - * by the caller using avfilter_inout_free(). - * @param[out] outputs a linked list of all free (unlinked) outputs of the - * parsed graph will be returned here. It is to be freed by the - * caller using avfilter_inout_free(). - * @return zero on success, a negative AVERROR code on error - * - * @note This function returns the inputs and outputs that are left - * unlinked after parsing the graph and the caller then deals with - * them. - * @note This function makes no reference whatsoever to already - * existing parts of the graph and the inputs parameter will on return - * contain inputs of the newly parsed part of the graph. Analogously - * the outputs parameter will contain outputs of the newly created - * filters. - */ -int avfilter_graph_parse2(AVFilterGraph *graph, const char *filters, - AVFilterInOut **inputs, - AVFilterInOut **outputs); - -/** - * Send a command to one or more filter instances. - * - * @param graph the filter graph - * @param target the filter(s) to which the command should be sent - * "all" sends to all filters - * otherwise it can be a filter or filter instance name - * which will send the command to all matching filters. - * @param cmd the command to send, for handling simplicity all commands must be alphanumeric only - * @param arg the argument for the command - * @param res a buffer with size res_size where the filter(s) can return a response. - * - * @returns >=0 on success otherwise an error code. - * AVERROR(ENOSYS) on unsupported commands - */ -int avfilter_graph_send_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, char *res, int res_len, int flags); - -/** - * Queue a command for one or more filter instances. - * - * @param graph the filter graph - * @param target the filter(s) to which the command should be sent - * "all" sends to all filters - * otherwise it can be a filter or filter instance name - * which will send the command to all matching filters. - * @param cmd the command to sent, for handling simplicity all commands must be alphanumeric only - * @param arg the argument for the command - * @param ts time at which the command should be sent to the filter - * - * @note As this executes commands after this function returns, no return code - * from the filter is provided, also AVFILTER_CMD_FLAG_ONE is not supported. - */ -int avfilter_graph_queue_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, int flags, double ts); - - -/** - * Dump a graph into a human-readable string representation. - * - * @param graph the graph to dump - * @param options formatting options; currently ignored - * @return a string, or NULL in case of memory allocation failure; - * the string must be freed using av_free - */ -char *avfilter_graph_dump(AVFilterGraph *graph, const char *options); - -/** - * Request a frame on the oldest sink link. - * - * If the request returns AVERROR_EOF, try the next. - * - * Note that this function is not meant to be the sole scheduling mechanism - * of a filtergraph, only a convenience function to help drain a filtergraph - * in a balanced way under normal circumstances. - * - * Also note that AVERROR_EOF does not mean that frames did not arrive on - * some of the sinks during the process. - * When there are multiple sink links, in case the requested link - * returns an EOF, this may cause a filter to flush pending frames - * which are sent to another sink link, although unrequested. - * - * @return the return value of ff_request_frame(), - * or AVERROR_EOF if all links returned AVERROR_EOF - */ -int avfilter_graph_request_oldest(AVFilterGraph *graph); - -/** - * @} - */ - -#endif /* AVFILTER_AVFILTER_H */ diff --git a/libs/mac/include/libavfilter/buffersink.h b/libs/mac/include/libavfilter/buffersink.h deleted file mode 100644 index 21d6bb50..00000000 --- a/libs/mac/include/libavfilter/buffersink.h +++ /dev/null @@ -1,165 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFILTER_BUFFERSINK_H -#define AVFILTER_BUFFERSINK_H - -/** - * @file - * @ingroup lavfi_buffersink - * memory buffer sink API for audio and video - */ - -#include "avfilter.h" - -/** - * @defgroup lavfi_buffersink Buffer sink API - * @ingroup lavfi - * @{ - */ - -/** - * Get a frame with filtered data from sink and put it in frame. - * - * @param ctx pointer to a buffersink or abuffersink filter context. - * @param frame pointer to an allocated frame that will be filled with data. - * The data must be freed using av_frame_unref() / av_frame_free() - * @param flags a combination of AV_BUFFERSINK_FLAG_* flags - * - * @return >= 0 in for success, a negative AVERROR code for failure. - */ -int av_buffersink_get_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags); - -/** - * Tell av_buffersink_get_buffer_ref() to read video/samples buffer - * reference, but not remove it from the buffer. This is useful if you - * need only to read a video/samples buffer, without to fetch it. - */ -#define AV_BUFFERSINK_FLAG_PEEK 1 - -/** - * Tell av_buffersink_get_buffer_ref() not to request a frame from its input. - * If a frame is already buffered, it is read (and removed from the buffer), - * but if no frame is present, return AVERROR(EAGAIN). - */ -#define AV_BUFFERSINK_FLAG_NO_REQUEST 2 - -/** - * Struct to use for initializing a buffersink context. - */ -typedef struct AVBufferSinkParams { - const enum AVPixelFormat *pixel_fmts; ///< list of allowed pixel formats, terminated by AV_PIX_FMT_NONE -} AVBufferSinkParams; - -/** - * Create an AVBufferSinkParams structure. - * - * Must be freed with av_free(). - */ -AVBufferSinkParams *av_buffersink_params_alloc(void); - -/** - * Struct to use for initializing an abuffersink context. - */ -typedef struct AVABufferSinkParams { - const enum AVSampleFormat *sample_fmts; ///< list of allowed sample formats, terminated by AV_SAMPLE_FMT_NONE - const int64_t *channel_layouts; ///< list of allowed channel layouts, terminated by -1 - const int *channel_counts; ///< list of allowed channel counts, terminated by -1 - int all_channel_counts; ///< if not 0, accept any channel count or layout - int *sample_rates; ///< list of allowed sample rates, terminated by -1 -} AVABufferSinkParams; - -/** - * Create an AVABufferSinkParams structure. - * - * Must be freed with av_free(). - */ -AVABufferSinkParams *av_abuffersink_params_alloc(void); - -/** - * Set the frame size for an audio buffer sink. - * - * All calls to av_buffersink_get_buffer_ref will return a buffer with - * exactly the specified number of samples, or AVERROR(EAGAIN) if there is - * not enough. The last buffer at EOF will be padded with 0. - */ -void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size); - -/** - * @defgroup lavfi_buffersink_accessors Buffer sink accessors - * Get the properties of the stream - * @{ - */ - -enum AVMediaType av_buffersink_get_type (const AVFilterContext *ctx); -AVRational av_buffersink_get_time_base (const AVFilterContext *ctx); -int av_buffersink_get_format (const AVFilterContext *ctx); - -AVRational av_buffersink_get_frame_rate (const AVFilterContext *ctx); -int av_buffersink_get_w (const AVFilterContext *ctx); -int av_buffersink_get_h (const AVFilterContext *ctx); -AVRational av_buffersink_get_sample_aspect_ratio (const AVFilterContext *ctx); - -int av_buffersink_get_channels (const AVFilterContext *ctx); -uint64_t av_buffersink_get_channel_layout (const AVFilterContext *ctx); -int av_buffersink_get_sample_rate (const AVFilterContext *ctx); - -AVBufferRef * av_buffersink_get_hw_frames_ctx (const AVFilterContext *ctx); - -/** @} */ - -/** - * Get a frame with filtered data from sink and put it in frame. - * - * @param ctx pointer to a context of a buffersink or abuffersink AVFilter. - * @param frame pointer to an allocated frame that will be filled with data. - * The data must be freed using av_frame_unref() / av_frame_free() - * - * @return - * - >= 0 if a frame was successfully returned. - * - AVERROR(EAGAIN) if no frames are available at this point; more - * input frames must be added to the filtergraph to get more output. - * - AVERROR_EOF if there will be no more output frames on this sink. - * - A different negative AVERROR code in other failure cases. - */ -int av_buffersink_get_frame(AVFilterContext *ctx, AVFrame *frame); - -/** - * Same as av_buffersink_get_frame(), but with the ability to specify the number - * of samples read. This function is less efficient than - * av_buffersink_get_frame(), because it copies the data around. - * - * @param ctx pointer to a context of the abuffersink AVFilter. - * @param frame pointer to an allocated frame that will be filled with data. - * The data must be freed using av_frame_unref() / av_frame_free() - * frame will contain exactly nb_samples audio samples, except at - * the end of stream, when it can contain less than nb_samples. - * - * @return The return codes have the same meaning as for - * av_buffersink_get_samples(). - * - * @warning do not mix this function with av_buffersink_get_frame(). Use only one or - * the other with a single sink, not both. - */ -int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int nb_samples); - -/** - * @} - */ - -#endif /* AVFILTER_BUFFERSINK_H */ diff --git a/libs/mac/include/libavfilter/buffersrc.h b/libs/mac/include/libavfilter/buffersrc.h deleted file mode 100644 index 0652113f..00000000 --- a/libs/mac/include/libavfilter/buffersrc.h +++ /dev/null @@ -1,209 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFILTER_BUFFERSRC_H -#define AVFILTER_BUFFERSRC_H - -/** - * @file - * @ingroup lavfi_buffersrc - * Memory buffer source API. - */ - -#include "avfilter.h" - -/** - * @defgroup lavfi_buffersrc Buffer source API - * @ingroup lavfi - * @{ - */ - -enum { - - /** - * Do not check for format changes. - */ - AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT = 1, - - /** - * Immediately push the frame to the output. - */ - AV_BUFFERSRC_FLAG_PUSH = 4, - - /** - * Keep a reference to the frame. - * If the frame if reference-counted, create a new reference; otherwise - * copy the frame data. - */ - AV_BUFFERSRC_FLAG_KEEP_REF = 8, - -}; - -/** - * Get the number of failed requests. - * - * A failed request is when the request_frame method is called while no - * frame is present in the buffer. - * The number is reset when a frame is added. - */ -unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src); - -/** - * This structure contains the parameters describing the frames that will be - * passed to this filter. - * - * It should be allocated with av_buffersrc_parameters_alloc() and freed with - * av_free(). All the allocated fields in it remain owned by the caller. - */ -typedef struct AVBufferSrcParameters { - /** - * video: the pixel format, value corresponds to enum AVPixelFormat - * audio: the sample format, value corresponds to enum AVSampleFormat - */ - int format; - /** - * The timebase to be used for the timestamps on the input frames. - */ - AVRational time_base; - - /** - * Video only, the display dimensions of the input frames. - */ - int width, height; - - /** - * Video only, the sample (pixel) aspect ratio. - */ - AVRational sample_aspect_ratio; - - /** - * Video only, the frame rate of the input video. This field must only be - * set to a non-zero value if input stream has a known constant framerate - * and should be left at its initial value if the framerate is variable or - * unknown. - */ - AVRational frame_rate; - - /** - * Video with a hwaccel pixel format only. This should be a reference to an - * AVHWFramesContext instance describing the input frames. - */ - AVBufferRef *hw_frames_ctx; - - /** - * Audio only, the audio sampling rate in samples per secon. - */ - int sample_rate; - - /** - * Audio only, the audio channel layout - */ - uint64_t channel_layout; -} AVBufferSrcParameters; - -/** - * Allocate a new AVBufferSrcParameters instance. It should be freed by the - * caller with av_free(). - */ -AVBufferSrcParameters *av_buffersrc_parameters_alloc(void); - -/** - * Initialize the buffersrc or abuffersrc filter with the provided parameters. - * This function may be called multiple times, the later calls override the - * previous ones. Some of the parameters may also be set through AVOptions, then - * whatever method is used last takes precedence. - * - * @param ctx an instance of the buffersrc or abuffersrc filter - * @param param the stream parameters. The frames later passed to this filter - * must conform to those parameters. All the allocated fields in - * param remain owned by the caller, libavfilter will make internal - * copies or references when necessary. - * @return 0 on success, a negative AVERROR code on failure. - */ -int av_buffersrc_parameters_set(AVFilterContext *ctx, AVBufferSrcParameters *param); - -/** - * Add a frame to the buffer source. - * - * @param ctx an instance of the buffersrc filter - * @param frame frame to be added. If the frame is reference counted, this - * function will make a new reference to it. Otherwise the frame data will be - * copied. - * - * @return 0 on success, a negative AVERROR on error - * - * This function is equivalent to av_buffersrc_add_frame_flags() with the - * AV_BUFFERSRC_FLAG_KEEP_REF flag. - */ -av_warn_unused_result -int av_buffersrc_write_frame(AVFilterContext *ctx, const AVFrame *frame); - -/** - * Add a frame to the buffer source. - * - * @param ctx an instance of the buffersrc filter - * @param frame frame to be added. If the frame is reference counted, this - * function will take ownership of the reference(s) and reset the frame. - * Otherwise the frame data will be copied. If this function returns an error, - * the input frame is not touched. - * - * @return 0 on success, a negative AVERROR on error. - * - * @note the difference between this function and av_buffersrc_write_frame() is - * that av_buffersrc_write_frame() creates a new reference to the input frame, - * while this function takes ownership of the reference passed to it. - * - * This function is equivalent to av_buffersrc_add_frame_flags() without the - * AV_BUFFERSRC_FLAG_KEEP_REF flag. - */ -av_warn_unused_result -int av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame); - -/** - * Add a frame to the buffer source. - * - * By default, if the frame is reference-counted, this function will take - * ownership of the reference(s) and reset the frame. This can be controlled - * using the flags. - * - * If this function returns an error, the input frame is not touched. - * - * @param buffer_src pointer to a buffer source context - * @param frame a frame, or NULL to mark EOF - * @param flags a combination of AV_BUFFERSRC_FLAG_* - * @return >= 0 in case of success, a negative AVERROR code - * in case of failure - */ -av_warn_unused_result -int av_buffersrc_add_frame_flags(AVFilterContext *buffer_src, - AVFrame *frame, int flags); - -/** - * Close the buffer source after EOF. - * - * This is similar to passing NULL to av_buffersrc_add_frame_flags() - * except it takes the timestamp of the EOF, i.e. the timestamp of the end - * of the last frame. - */ -int av_buffersrc_close(AVFilterContext *ctx, int64_t pts, unsigned flags); - -/** - * @} - */ - -#endif /* AVFILTER_BUFFERSRC_H */ diff --git a/libs/mac/include/libavfilter/version.h b/libs/mac/include/libavfilter/version.h deleted file mode 100644 index a7be7e64..00000000 --- a/libs/mac/include/libavfilter/version.h +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Version macros. - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFILTER_VERSION_H -#define AVFILTER_VERSION_H - -/** - * @file - * @ingroup lavfi - * Libavfilter version macros - */ - -#include "libavutil/version.h" - -#define LIBAVFILTER_VERSION_MAJOR 7 -#define LIBAVFILTER_VERSION_MINOR 25 -#define LIBAVFILTER_VERSION_MICRO 100 - -#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ - LIBAVFILTER_VERSION_MINOR, \ - LIBAVFILTER_VERSION_MICRO) -#define LIBAVFILTER_VERSION AV_VERSION(LIBAVFILTER_VERSION_MAJOR, \ - LIBAVFILTER_VERSION_MINOR, \ - LIBAVFILTER_VERSION_MICRO) -#define LIBAVFILTER_BUILD LIBAVFILTER_VERSION_INT - -#define LIBAVFILTER_IDENT "Lavfi" AV_STRINGIFY(LIBAVFILTER_VERSION) - -/** - * FF_API_* defines may be placed below to indicate public API that will be - * dropped at a future version bump. The defines themselves are not part of - * the public API and may change, break or disappear at any time. - */ - -#ifndef FF_API_OLD_FILTER_OPTS_ERROR -#define FF_API_OLD_FILTER_OPTS_ERROR (LIBAVFILTER_VERSION_MAJOR < 8) -#endif -#ifndef FF_API_LAVR_OPTS -#define FF_API_LAVR_OPTS (LIBAVFILTER_VERSION_MAJOR < 8) -#endif -#ifndef FF_API_FILTER_GET_SET -#define FF_API_FILTER_GET_SET (LIBAVFILTER_VERSION_MAJOR < 8) -#endif -#ifndef FF_API_NEXT -#define FF_API_NEXT (LIBAVFILTER_VERSION_MAJOR < 8) -#endif - -#endif /* AVFILTER_VERSION_H */ diff --git a/libs/mac/include/libavformat/avformat.h b/libs/mac/include/libavformat/avformat.h deleted file mode 100644 index fdaffa5b..00000000 --- a/libs/mac/include/libavformat/avformat.h +++ /dev/null @@ -1,3085 +0,0 @@ -/* - * copyright (c) 2001 Fabrice Bellard - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFORMAT_AVFORMAT_H -#define AVFORMAT_AVFORMAT_H - -/** - * @file - * @ingroup libavf - * Main libavformat public API header - */ - -/** - * @defgroup libavf libavformat - * I/O and Muxing/Demuxing Library - * - * Libavformat (lavf) is a library for dealing with various media container - * formats. Its main two purposes are demuxing - i.e. splitting a media file - * into component streams, and the reverse process of muxing - writing supplied - * data in a specified container format. It also has an @ref lavf_io - * "I/O module" which supports a number of protocols for accessing the data (e.g. - * file, tcp, http and others). Before using lavf, you need to call - * av_register_all() to register all compiled muxers, demuxers and protocols. - * Unless you are absolutely sure you won't use libavformat's network - * capabilities, you should also call avformat_network_init(). - * - * A supported input format is described by an AVInputFormat struct, conversely - * an output format is described by AVOutputFormat. You can iterate over all - * registered input/output formats using the av_iformat_next() / - * av_oformat_next() functions. The protocols layer is not part of the public - * API, so you can only get the names of supported protocols with the - * avio_enum_protocols() function. - * - * Main lavf structure used for both muxing and demuxing is AVFormatContext, - * which exports all information about the file being read or written. As with - * most Libavformat structures, its size is not part of public ABI, so it cannot be - * allocated on stack or directly with av_malloc(). To create an - * AVFormatContext, use avformat_alloc_context() (some functions, like - * avformat_open_input() might do that for you). - * - * Most importantly an AVFormatContext contains: - * @li the @ref AVFormatContext.iformat "input" or @ref AVFormatContext.oformat - * "output" format. It is either autodetected or set by user for input; - * always set by user for output. - * @li an @ref AVFormatContext.streams "array" of AVStreams, which describe all - * elementary streams stored in the file. AVStreams are typically referred to - * using their index in this array. - * @li an @ref AVFormatContext.pb "I/O context". It is either opened by lavf or - * set by user for input, always set by user for output (unless you are dealing - * with an AVFMT_NOFILE format). - * - * @section lavf_options Passing options to (de)muxers - * It is possible to configure lavf muxers and demuxers using the @ref avoptions - * mechanism. Generic (format-independent) libavformat options are provided by - * AVFormatContext, they can be examined from a user program by calling - * av_opt_next() / av_opt_find() on an allocated AVFormatContext (or its AVClass - * from avformat_get_class()). Private (format-specific) options are provided by - * AVFormatContext.priv_data if and only if AVInputFormat.priv_class / - * AVOutputFormat.priv_class of the corresponding format struct is non-NULL. - * Further options may be provided by the @ref AVFormatContext.pb "I/O context", - * if its AVClass is non-NULL, and the protocols layer. See the discussion on - * nesting in @ref avoptions documentation to learn how to access those. - * - * @section urls - * URL strings in libavformat are made of a scheme/protocol, a ':', and a - * scheme specific string. URLs without a scheme and ':' used for local files - * are supported but deprecated. "file:" should be used for local files. - * - * It is important that the scheme string is not taken from untrusted - * sources without checks. - * - * Note that some schemes/protocols are quite powerful, allowing access to - * both local and remote files, parts of them, concatenations of them, local - * audio and video devices and so on. - * - * @{ - * - * @defgroup lavf_decoding Demuxing - * @{ - * Demuxers read a media file and split it into chunks of data (@em packets). A - * @ref AVPacket "packet" contains one or more encoded frames which belongs to a - * single elementary stream. In the lavf API this process is represented by the - * avformat_open_input() function for opening a file, av_read_frame() for - * reading a single packet and finally avformat_close_input(), which does the - * cleanup. - * - * @section lavf_decoding_open Opening a media file - * The minimum information required to open a file is its URL, which - * is passed to avformat_open_input(), as in the following code: - * @code - * const char *url = "file:in.mp3"; - * AVFormatContext *s = NULL; - * int ret = avformat_open_input(&s, url, NULL, NULL); - * if (ret < 0) - * abort(); - * @endcode - * The above code attempts to allocate an AVFormatContext, open the - * specified file (autodetecting the format) and read the header, exporting the - * information stored there into s. Some formats do not have a header or do not - * store enough information there, so it is recommended that you call the - * avformat_find_stream_info() function which tries to read and decode a few - * frames to find missing information. - * - * In some cases you might want to preallocate an AVFormatContext yourself with - * avformat_alloc_context() and do some tweaking on it before passing it to - * avformat_open_input(). One such case is when you want to use custom functions - * for reading input data instead of lavf internal I/O layer. - * To do that, create your own AVIOContext with avio_alloc_context(), passing - * your reading callbacks to it. Then set the @em pb field of your - * AVFormatContext to newly created AVIOContext. - * - * Since the format of the opened file is in general not known until after - * avformat_open_input() has returned, it is not possible to set demuxer private - * options on a preallocated context. Instead, the options should be passed to - * avformat_open_input() wrapped in an AVDictionary: - * @code - * AVDictionary *options = NULL; - * av_dict_set(&options, "video_size", "640x480", 0); - * av_dict_set(&options, "pixel_format", "rgb24", 0); - * - * if (avformat_open_input(&s, url, NULL, &options) < 0) - * abort(); - * av_dict_free(&options); - * @endcode - * This code passes the private options 'video_size' and 'pixel_format' to the - * demuxer. They would be necessary for e.g. the rawvideo demuxer, since it - * cannot know how to interpret raw video data otherwise. If the format turns - * out to be something different than raw video, those options will not be - * recognized by the demuxer and therefore will not be applied. Such unrecognized - * options are then returned in the options dictionary (recognized options are - * consumed). The calling program can handle such unrecognized options as it - * wishes, e.g. - * @code - * AVDictionaryEntry *e; - * if (e = av_dict_get(options, "", NULL, AV_DICT_IGNORE_SUFFIX)) { - * fprintf(stderr, "Option %s not recognized by the demuxer.\n", e->key); - * abort(); - * } - * @endcode - * - * After you have finished reading the file, you must close it with - * avformat_close_input(). It will free everything associated with the file. - * - * @section lavf_decoding_read Reading from an opened file - * Reading data from an opened AVFormatContext is done by repeatedly calling - * av_read_frame() on it. Each call, if successful, will return an AVPacket - * containing encoded data for one AVStream, identified by - * AVPacket.stream_index. This packet may be passed straight into the libavcodec - * decoding functions avcodec_send_packet() or avcodec_decode_subtitle2() if the - * caller wishes to decode the data. - * - * AVPacket.pts, AVPacket.dts and AVPacket.duration timing information will be - * set if known. They may also be unset (i.e. AV_NOPTS_VALUE for - * pts/dts, 0 for duration) if the stream does not provide them. The timing - * information will be in AVStream.time_base units, i.e. it has to be - * multiplied by the timebase to convert them to seconds. - * - * If AVPacket.buf is set on the returned packet, then the packet is - * allocated dynamically and the user may keep it indefinitely. - * Otherwise, if AVPacket.buf is NULL, the packet data is backed by a - * static storage somewhere inside the demuxer and the packet is only valid - * until the next av_read_frame() call or closing the file. If the caller - * requires a longer lifetime, av_dup_packet() will make an av_malloc()ed copy - * of it. - * In both cases, the packet must be freed with av_packet_unref() when it is no - * longer needed. - * - * @section lavf_decoding_seek Seeking - * @} - * - * @defgroup lavf_encoding Muxing - * @{ - * Muxers take encoded data in the form of @ref AVPacket "AVPackets" and write - * it into files or other output bytestreams in the specified container format. - * - * The main API functions for muxing are avformat_write_header() for writing the - * file header, av_write_frame() / av_interleaved_write_frame() for writing the - * packets and av_write_trailer() for finalizing the file. - * - * At the beginning of the muxing process, the caller must first call - * avformat_alloc_context() to create a muxing context. The caller then sets up - * the muxer by filling the various fields in this context: - * - * - The @ref AVFormatContext.oformat "oformat" field must be set to select the - * muxer that will be used. - * - Unless the format is of the AVFMT_NOFILE type, the @ref AVFormatContext.pb - * "pb" field must be set to an opened IO context, either returned from - * avio_open2() or a custom one. - * - Unless the format is of the AVFMT_NOSTREAMS type, at least one stream must - * be created with the avformat_new_stream() function. The caller should fill - * the @ref AVStream.codecpar "stream codec parameters" information, such as the - * codec @ref AVCodecParameters.codec_type "type", @ref AVCodecParameters.codec_id - * "id" and other parameters (e.g. width / height, the pixel or sample format, - * etc.) as known. The @ref AVStream.time_base "stream timebase" should - * be set to the timebase that the caller desires to use for this stream (note - * that the timebase actually used by the muxer can be different, as will be - * described later). - * - It is advised to manually initialize only the relevant fields in - * AVCodecParameters, rather than using @ref avcodec_parameters_copy() during - * remuxing: there is no guarantee that the codec context values remain valid - * for both input and output format contexts. - * - The caller may fill in additional information, such as @ref - * AVFormatContext.metadata "global" or @ref AVStream.metadata "per-stream" - * metadata, @ref AVFormatContext.chapters "chapters", @ref - * AVFormatContext.programs "programs", etc. as described in the - * AVFormatContext documentation. Whether such information will actually be - * stored in the output depends on what the container format and the muxer - * support. - * - * When the muxing context is fully set up, the caller must call - * avformat_write_header() to initialize the muxer internals and write the file - * header. Whether anything actually is written to the IO context at this step - * depends on the muxer, but this function must always be called. Any muxer - * private options must be passed in the options parameter to this function. - * - * The data is then sent to the muxer by repeatedly calling av_write_frame() or - * av_interleaved_write_frame() (consult those functions' documentation for - * discussion on the difference between them; only one of them may be used with - * a single muxing context, they should not be mixed). Do note that the timing - * information on the packets sent to the muxer must be in the corresponding - * AVStream's timebase. That timebase is set by the muxer (in the - * avformat_write_header() step) and may be different from the timebase - * requested by the caller. - * - * Once all the data has been written, the caller must call av_write_trailer() - * to flush any buffered packets and finalize the output file, then close the IO - * context (if any) and finally free the muxing context with - * avformat_free_context(). - * @} - * - * @defgroup lavf_io I/O Read/Write - * @{ - * @section lavf_io_dirlist Directory listing - * The directory listing API makes it possible to list files on remote servers. - * - * Some of possible use cases: - * - an "open file" dialog to choose files from a remote location, - * - a recursive media finder providing a player with an ability to play all - * files from a given directory. - * - * @subsection lavf_io_dirlist_open Opening a directory - * At first, a directory needs to be opened by calling avio_open_dir() - * supplied with a URL and, optionally, ::AVDictionary containing - * protocol-specific parameters. The function returns zero or positive - * integer and allocates AVIODirContext on success. - * - * @code - * AVIODirContext *ctx = NULL; - * if (avio_open_dir(&ctx, "smb://example.com/some_dir", NULL) < 0) { - * fprintf(stderr, "Cannot open directory.\n"); - * abort(); - * } - * @endcode - * - * This code tries to open a sample directory using smb protocol without - * any additional parameters. - * - * @subsection lavf_io_dirlist_read Reading entries - * Each directory's entry (i.e. file, another directory, anything else - * within ::AVIODirEntryType) is represented by AVIODirEntry. - * Reading consecutive entries from an opened AVIODirContext is done by - * repeatedly calling avio_read_dir() on it. Each call returns zero or - * positive integer if successful. Reading can be stopped right after the - * NULL entry has been read -- it means there are no entries left to be - * read. The following code reads all entries from a directory associated - * with ctx and prints their names to standard output. - * @code - * AVIODirEntry *entry = NULL; - * for (;;) { - * if (avio_read_dir(ctx, &entry) < 0) { - * fprintf(stderr, "Cannot list directory.\n"); - * abort(); - * } - * if (!entry) - * break; - * printf("%s\n", entry->name); - * avio_free_directory_entry(&entry); - * } - * @endcode - * @} - * - * @defgroup lavf_codec Demuxers - * @{ - * @defgroup lavf_codec_native Native Demuxers - * @{ - * @} - * @defgroup lavf_codec_wrappers External library wrappers - * @{ - * @} - * @} - * @defgroup lavf_protos I/O Protocols - * @{ - * @} - * @defgroup lavf_internal Internal - * @{ - * @} - * @} - */ - -#include -#include /* FILE */ -#include "libavcodec/avcodec.h" -#include "libavutil/dict.h" -#include "libavutil/log.h" - -#include "avio.h" -#include "libavformat/version.h" - -struct AVFormatContext; - -struct AVDeviceInfoList; -struct AVDeviceCapabilitiesQuery; - -/** - * @defgroup metadata_api Public Metadata API - * @{ - * @ingroup libavf - * The metadata API allows libavformat to export metadata tags to a client - * application when demuxing. Conversely it allows a client application to - * set metadata when muxing. - * - * Metadata is exported or set as pairs of key/value strings in the 'metadata' - * fields of the AVFormatContext, AVStream, AVChapter and AVProgram structs - * using the @ref lavu_dict "AVDictionary" API. Like all strings in FFmpeg, - * metadata is assumed to be UTF-8 encoded Unicode. Note that metadata - * exported by demuxers isn't checked to be valid UTF-8 in most cases. - * - * Important concepts to keep in mind: - * - Keys are unique; there can never be 2 tags with the same key. This is - * also meant semantically, i.e., a demuxer should not knowingly produce - * several keys that are literally different but semantically identical. - * E.g., key=Author5, key=Author6. In this example, all authors must be - * placed in the same tag. - * - Metadata is flat, not hierarchical; there are no subtags. If you - * want to store, e.g., the email address of the child of producer Alice - * and actor Bob, that could have key=alice_and_bobs_childs_email_address. - * - Several modifiers can be applied to the tag name. This is done by - * appending a dash character ('-') and the modifier name in the order - * they appear in the list below -- e.g. foo-eng-sort, not foo-sort-eng. - * - language -- a tag whose value is localized for a particular language - * is appended with the ISO 639-2/B 3-letter language code. - * For example: Author-ger=Michael, Author-eng=Mike - * The original/default language is in the unqualified "Author" tag. - * A demuxer should set a default if it sets any translated tag. - * - sorting -- a modified version of a tag that should be used for - * sorting will have '-sort' appended. E.g. artist="The Beatles", - * artist-sort="Beatles, The". - * - Some protocols and demuxers support metadata updates. After a successful - * call to av_read_packet(), AVFormatContext.event_flags or AVStream.event_flags - * will be updated to indicate if metadata changed. In order to detect metadata - * changes on a stream, you need to loop through all streams in the AVFormatContext - * and check their individual event_flags. - * - * - Demuxers attempt to export metadata in a generic format, however tags - * with no generic equivalents are left as they are stored in the container. - * Follows a list of generic tag names: - * - @verbatim - album -- name of the set this work belongs to - album_artist -- main creator of the set/album, if different from artist. - e.g. "Various Artists" for compilation albums. - artist -- main creator of the work - comment -- any additional description of the file. - composer -- who composed the work, if different from artist. - copyright -- name of copyright holder. - creation_time-- date when the file was created, preferably in ISO 8601. - date -- date when the work was created, preferably in ISO 8601. - disc -- number of a subset, e.g. disc in a multi-disc collection. - encoder -- name/settings of the software/hardware that produced the file. - encoded_by -- person/group who created the file. - filename -- original name of the file. - genre -- . - language -- main language in which the work is performed, preferably - in ISO 639-2 format. Multiple languages can be specified by - separating them with commas. - performer -- artist who performed the work, if different from artist. - E.g for "Also sprach Zarathustra", artist would be "Richard - Strauss" and performer "London Philharmonic Orchestra". - publisher -- name of the label/publisher. - service_name -- name of the service in broadcasting (channel name). - service_provider -- name of the service provider in broadcasting. - title -- name of the work. - track -- number of this work in the set, can be in form current/total. - variant_bitrate -- the total bitrate of the bitrate variant that the current stream is part of - @endverbatim - * - * Look in the examples section for an application example how to use the Metadata API. - * - * @} - */ - -/* packet functions */ - - -/** - * Allocate and read the payload of a packet and initialize its - * fields with default values. - * - * @param s associated IO context - * @param pkt packet - * @param size desired payload size - * @return >0 (read size) if OK, AVERROR_xxx otherwise - */ -int av_get_packet(AVIOContext *s, AVPacket *pkt, int size); - - -/** - * Read data and append it to the current content of the AVPacket. - * If pkt->size is 0 this is identical to av_get_packet. - * Note that this uses av_grow_packet and thus involves a realloc - * which is inefficient. Thus this function should only be used - * when there is no reasonable way to know (an upper bound of) - * the final size. - * - * @param s associated IO context - * @param pkt packet - * @param size amount of data to read - * @return >0 (read size) if OK, AVERROR_xxx otherwise, previous data - * will not be lost even if an error occurs. - */ -int av_append_packet(AVIOContext *s, AVPacket *pkt, int size); - -/*************************************************/ -/* input/output formats */ - -struct AVCodecTag; - -/** - * This structure contains the data a format has to probe a file. - */ -typedef struct AVProbeData { - const char *filename; - unsigned char *buf; /**< Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero. */ - int buf_size; /**< Size of buf except extra allocated bytes */ - const char *mime_type; /**< mime_type, when known. */ -} AVProbeData; - -#define AVPROBE_SCORE_RETRY (AVPROBE_SCORE_MAX/4) -#define AVPROBE_SCORE_STREAM_RETRY (AVPROBE_SCORE_MAX/4-1) - -#define AVPROBE_SCORE_EXTENSION 50 ///< score for file extension -#define AVPROBE_SCORE_MIME 75 ///< score for file mime type -#define AVPROBE_SCORE_MAX 100 ///< maximum score - -#define AVPROBE_PADDING_SIZE 32 ///< extra allocated bytes at the end of the probe buffer - -/// Demuxer will use avio_open, no opened file should be provided by the caller. -#define AVFMT_NOFILE 0x0001 -#define AVFMT_NEEDNUMBER 0x0002 /**< Needs '%d' in filename. */ -#define AVFMT_SHOW_IDS 0x0008 /**< Show format stream IDs numbers. */ -#define AVFMT_GLOBALHEADER 0x0040 /**< Format wants global header. */ -#define AVFMT_NOTIMESTAMPS 0x0080 /**< Format does not need / have any timestamps. */ -#define AVFMT_GENERIC_INDEX 0x0100 /**< Use generic index building code. */ -#define AVFMT_TS_DISCONT 0x0200 /**< Format allows timestamp discontinuities. Note, muxers always require valid (monotone) timestamps */ -#define AVFMT_VARIABLE_FPS 0x0400 /**< Format allows variable fps. */ -#define AVFMT_NODIMENSIONS 0x0800 /**< Format does not need width/height */ -#define AVFMT_NOSTREAMS 0x1000 /**< Format does not require any streams */ -#define AVFMT_NOBINSEARCH 0x2000 /**< Format does not allow to fall back on binary search via read_timestamp */ -#define AVFMT_NOGENSEARCH 0x4000 /**< Format does not allow to fall back on generic search */ -#define AVFMT_NO_BYTE_SEEK 0x8000 /**< Format does not allow seeking by bytes */ -#define AVFMT_ALLOW_FLUSH 0x10000 /**< Format allows flushing. If not set, the muxer will not receive a NULL packet in the write_packet function. */ -#define AVFMT_TS_NONSTRICT 0x20000 /**< Format does not require strictly - increasing timestamps, but they must - still be monotonic */ -#define AVFMT_TS_NEGATIVE 0x40000 /**< Format allows muxing negative - timestamps. If not set the timestamp - will be shifted in av_write_frame and - av_interleaved_write_frame so they - start from 0. - The user or muxer can override this through - AVFormatContext.avoid_negative_ts - */ - -#define AVFMT_SEEK_TO_PTS 0x4000000 /**< Seeking is based on PTS */ - -/** - * @addtogroup lavf_encoding - * @{ - */ -typedef struct AVOutputFormat { - const char *name; - /** - * Descriptive name for the format, meant to be more human-readable - * than name. You should use the NULL_IF_CONFIG_SMALL() macro - * to define it. - */ - const char *long_name; - const char *mime_type; - const char *extensions; /**< comma-separated filename extensions */ - /* output support */ - enum AVCodecID audio_codec; /**< default audio codec */ - enum AVCodecID video_codec; /**< default video codec */ - enum AVCodecID subtitle_codec; /**< default subtitle codec */ - /** - * can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, - * AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS, - * AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH, - * AVFMT_TS_NONSTRICT, AVFMT_TS_NEGATIVE - */ - int flags; - - /** - * List of supported codec_id-codec_tag pairs, ordered by "better - * choice first". The arrays are all terminated by AV_CODEC_ID_NONE. - */ - const struct AVCodecTag * const *codec_tag; - - - const AVClass *priv_class; ///< AVClass for the private context - - /***************************************************************** - * No fields below this line are part of the public API. They - * may not be used outside of libavformat and can be changed and - * removed at will. - * New public fields should be added right above. - ***************************************************************** - */ - struct AVOutputFormat *next; - /** - * size of private data so that it can be allocated in the wrapper - */ - int priv_data_size; - - int (*write_header)(struct AVFormatContext *); - /** - * Write a packet. If AVFMT_ALLOW_FLUSH is set in flags, - * pkt can be NULL in order to flush data buffered in the muxer. - * When flushing, return 0 if there still is more data to flush, - * or 1 if everything was flushed and there is no more buffered - * data. - */ - int (*write_packet)(struct AVFormatContext *, AVPacket *pkt); - int (*write_trailer)(struct AVFormatContext *); - /** - * Currently only used to set pixel format if not YUV420P. - */ - int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, - AVPacket *in, int flush); - /** - * Test if the given codec can be stored in this container. - * - * @return 1 if the codec is supported, 0 if it is not. - * A negative number if unknown. - * MKTAG('A', 'P', 'I', 'C') if the codec is only supported as AV_DISPOSITION_ATTACHED_PIC - */ - int (*query_codec)(enum AVCodecID id, int std_compliance); - - void (*get_output_timestamp)(struct AVFormatContext *s, int stream, - int64_t *dts, int64_t *wall); - /** - * Allows sending messages from application to device. - */ - int (*control_message)(struct AVFormatContext *s, int type, - void *data, size_t data_size); - - /** - * Write an uncoded AVFrame. - * - * See av_write_uncoded_frame() for details. - * - * The library will free *frame afterwards, but the muxer can prevent it - * by setting the pointer to NULL. - */ - int (*write_uncoded_frame)(struct AVFormatContext *, int stream_index, - AVFrame **frame, unsigned flags); - /** - * Returns device list with it properties. - * @see avdevice_list_devices() for more details. - */ - int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list); - /** - * Initialize device capabilities submodule. - * @see avdevice_capabilities_create() for more details. - */ - int (*create_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps); - /** - * Free device capabilities submodule. - * @see avdevice_capabilities_free() for more details. - */ - int (*free_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps); - enum AVCodecID data_codec; /**< default data codec */ - /** - * Initialize format. May allocate data here, and set any AVFormatContext or - * AVStream parameters that need to be set before packets are sent. - * This method must not write output. - * - * Return 0 if streams were fully configured, 1 if not, negative AVERROR on failure - * - * Any allocations made here must be freed in deinit(). - */ - int (*init)(struct AVFormatContext *); - /** - * Deinitialize format. If present, this is called whenever the muxer is being - * destroyed, regardless of whether or not the header has been written. - * - * If a trailer is being written, this is called after write_trailer(). - * - * This is called if init() fails as well. - */ - void (*deinit)(struct AVFormatContext *); - /** - * Set up any necessary bitstream filtering and extract any extra data needed - * for the global header. - * Return 0 if more packets from this stream must be checked; 1 if not. - */ - int (*check_bitstream)(struct AVFormatContext *, const AVPacket *pkt); -} AVOutputFormat; -/** - * @} - */ - -/** - * @addtogroup lavf_decoding - * @{ - */ -typedef struct AVInputFormat { - /** - * A comma separated list of short names for the format. New names - * may be appended with a minor bump. - */ - const char *name; - - /** - * Descriptive name for the format, meant to be more human-readable - * than name. You should use the NULL_IF_CONFIG_SMALL() macro - * to define it. - */ - const char *long_name; - - /** - * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS, - * AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH, - * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK, AVFMT_SEEK_TO_PTS. - */ - int flags; - - /** - * If extensions are defined, then no probe is done. You should - * usually not use extension format guessing because it is not - * reliable enough - */ - const char *extensions; - - const struct AVCodecTag * const *codec_tag; - - const AVClass *priv_class; ///< AVClass for the private context - - /** - * Comma-separated list of mime types. - * It is used check for matching mime types while probing. - * @see av_probe_input_format2 - */ - const char *mime_type; - - /***************************************************************** - * No fields below this line are part of the public API. They - * may not be used outside of libavformat and can be changed and - * removed at will. - * New public fields should be added right above. - ***************************************************************** - */ - struct AVInputFormat *next; - - /** - * Raw demuxers store their codec ID here. - */ - int raw_codec_id; - - /** - * Size of private data so that it can be allocated in the wrapper. - */ - int priv_data_size; - - /** - * Tell if a given file has a chance of being parsed as this format. - * The buffer provided is guaranteed to be AVPROBE_PADDING_SIZE bytes - * big so you do not have to check for that unless you need more. - */ - int (*read_probe)(AVProbeData *); - - /** - * Read the format header and initialize the AVFormatContext - * structure. Return 0 if OK. 'avformat_new_stream' should be - * called to create new streams. - */ - int (*read_header)(struct AVFormatContext *); - - /** - * Read one packet and put it in 'pkt'. pts and flags are also - * set. 'avformat_new_stream' can be called only if the flag - * AVFMTCTX_NOHEADER is used and only in the calling thread (not in a - * background thread). - * @return 0 on success, < 0 on error. - * When returning an error, pkt must not have been allocated - * or must be freed before returning - */ - int (*read_packet)(struct AVFormatContext *, AVPacket *pkt); - - /** - * Close the stream. The AVFormatContext and AVStreams are not - * freed by this function - */ - int (*read_close)(struct AVFormatContext *); - - /** - * Seek to a given timestamp relative to the frames in - * stream component stream_index. - * @param stream_index Must not be -1. - * @param flags Selects which direction should be preferred if no exact - * match is available. - * @return >= 0 on success (but not necessarily the new offset) - */ - int (*read_seek)(struct AVFormatContext *, - int stream_index, int64_t timestamp, int flags); - - /** - * Get the next timestamp in stream[stream_index].time_base units. - * @return the timestamp or AV_NOPTS_VALUE if an error occurred - */ - int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index, - int64_t *pos, int64_t pos_limit); - - /** - * Start/resume playing - only meaningful if using a network-based format - * (RTSP). - */ - int (*read_play)(struct AVFormatContext *); - - /** - * Pause playing - only meaningful if using a network-based format - * (RTSP). - */ - int (*read_pause)(struct AVFormatContext *); - - /** - * Seek to timestamp ts. - * Seeking will be done so that the point from which all active streams - * can be presented successfully will be closest to ts and within min/max_ts. - * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL. - */ - int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags); - - /** - * Returns device list with it properties. - * @see avdevice_list_devices() for more details. - */ - int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list); - - /** - * Initialize device capabilities submodule. - * @see avdevice_capabilities_create() for more details. - */ - int (*create_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps); - - /** - * Free device capabilities submodule. - * @see avdevice_capabilities_free() for more details. - */ - int (*free_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps); -} AVInputFormat; -/** - * @} - */ - -enum AVStreamParseType { - AVSTREAM_PARSE_NONE, - AVSTREAM_PARSE_FULL, /**< full parsing and repack */ - AVSTREAM_PARSE_HEADERS, /**< Only parse headers, do not repack. */ - AVSTREAM_PARSE_TIMESTAMPS, /**< full parsing and interpolation of timestamps for frames not starting on a packet boundary */ - AVSTREAM_PARSE_FULL_ONCE, /**< full parsing and repack of the first frame only, only implemented for H.264 currently */ - AVSTREAM_PARSE_FULL_RAW, /**< full parsing and repack with timestamp and position generation by parser for raw - this assumes that each packet in the file contains no demuxer level headers and - just codec level data, otherwise position generation would fail */ -}; - -typedef struct AVIndexEntry { - int64_t pos; - int64_t timestamp; /**< - * Timestamp in AVStream.time_base units, preferably the time from which on correctly decoded frames are available - * when seeking to this entry. That means preferable PTS on keyframe based formats. - * But demuxers can choose to store a different timestamp, if it is more convenient for the implementation or nothing better - * is known - */ -#define AVINDEX_KEYFRAME 0x0001 -#define AVINDEX_DISCARD_FRAME 0x0002 /** - * Flag is used to indicate which frame should be discarded after decoding. - */ - int flags:2; - int size:30; //Yeah, trying to keep the size of this small to reduce memory requirements (it is 24 vs. 32 bytes due to possible 8-byte alignment). - int min_distance; /**< Minimum distance between this and the previous keyframe, used to avoid unneeded searching. */ -} AVIndexEntry; - -#define AV_DISPOSITION_DEFAULT 0x0001 -#define AV_DISPOSITION_DUB 0x0002 -#define AV_DISPOSITION_ORIGINAL 0x0004 -#define AV_DISPOSITION_COMMENT 0x0008 -#define AV_DISPOSITION_LYRICS 0x0010 -#define AV_DISPOSITION_KARAOKE 0x0020 - -/** - * Track should be used during playback by default. - * Useful for subtitle track that should be displayed - * even when user did not explicitly ask for subtitles. - */ -#define AV_DISPOSITION_FORCED 0x0040 -#define AV_DISPOSITION_HEARING_IMPAIRED 0x0080 /**< stream for hearing impaired audiences */ -#define AV_DISPOSITION_VISUAL_IMPAIRED 0x0100 /**< stream for visual impaired audiences */ -#define AV_DISPOSITION_CLEAN_EFFECTS 0x0200 /**< stream without voice */ -/** - * The stream is stored in the file as an attached picture/"cover art" (e.g. - * APIC frame in ID3v2). The first (usually only) packet associated with it - * will be returned among the first few packets read from the file unless - * seeking takes place. It can also be accessed at any time in - * AVStream.attached_pic. - */ -#define AV_DISPOSITION_ATTACHED_PIC 0x0400 -/** - * The stream is sparse, and contains thumbnail images, often corresponding - * to chapter markers. Only ever used with AV_DISPOSITION_ATTACHED_PIC. - */ -#define AV_DISPOSITION_TIMED_THUMBNAILS 0x0800 - -typedef struct AVStreamInternal AVStreamInternal; - -/** - * To specify text track kind (different from subtitles default). - */ -#define AV_DISPOSITION_CAPTIONS 0x10000 -#define AV_DISPOSITION_DESCRIPTIONS 0x20000 -#define AV_DISPOSITION_METADATA 0x40000 -#define AV_DISPOSITION_DEPENDENT 0x80000 ///< dependent audio stream (mix_type=0 in mpegts) -#define AV_DISPOSITION_STILL_IMAGE 0x100000 ///< still images in video stream (still_picture_flag=1 in mpegts) - -/** - * Options for behavior on timestamp wrap detection. - */ -#define AV_PTS_WRAP_IGNORE 0 ///< ignore the wrap -#define AV_PTS_WRAP_ADD_OFFSET 1 ///< add the format specific offset on wrap detection -#define AV_PTS_WRAP_SUB_OFFSET -1 ///< subtract the format specific offset on wrap detection - -/** - * Stream structure. - * New fields can be added to the end with minor version bumps. - * Removal, reordering and changes to existing fields require a major - * version bump. - * sizeof(AVStream) must not be used outside libav*. - */ -typedef struct AVStream { - int index; /**< stream index in AVFormatContext */ - /** - * Format-specific stream ID. - * decoding: set by libavformat - * encoding: set by the user, replaced by libavformat if left unset - */ - int id; -#if FF_API_LAVF_AVCTX - /** - * @deprecated use the codecpar struct instead - */ - attribute_deprecated - AVCodecContext *codec; -#endif - void *priv_data; - - /** - * This is the fundamental unit of time (in seconds) in terms - * of which frame timestamps are represented. - * - * decoding: set by libavformat - * encoding: May be set by the caller before avformat_write_header() to - * provide a hint to the muxer about the desired timebase. In - * avformat_write_header(), the muxer will overwrite this field - * with the timebase that will actually be used for the timestamps - * written into the file (which may or may not be related to the - * user-provided one, depending on the format). - */ - AVRational time_base; - - /** - * Decoding: pts of the first frame of the stream in presentation order, in stream time base. - * Only set this if you are absolutely 100% sure that the value you set - * it to really is the pts of the first frame. - * This may be undefined (AV_NOPTS_VALUE). - * @note The ASF header does NOT contain a correct start_time the ASF - * demuxer must NOT set this. - */ - int64_t start_time; - - /** - * Decoding: duration of the stream, in stream time base. - * If a source file does not specify a duration, but does specify - * a bitrate, this value will be estimated from bitrate and file size. - * - * Encoding: May be set by the caller before avformat_write_header() to - * provide a hint to the muxer about the estimated duration. - */ - int64_t duration; - - int64_t nb_frames; ///< number of frames in this stream if known or 0 - - int disposition; /**< AV_DISPOSITION_* bit field */ - - enum AVDiscard discard; ///< Selects which packets can be discarded at will and do not need to be demuxed. - - /** - * sample aspect ratio (0 if unknown) - * - encoding: Set by user. - * - decoding: Set by libavformat. - */ - AVRational sample_aspect_ratio; - - AVDictionary *metadata; - - /** - * Average framerate - * - * - demuxing: May be set by libavformat when creating the stream or in - * avformat_find_stream_info(). - * - muxing: May be set by the caller before avformat_write_header(). - */ - AVRational avg_frame_rate; - - /** - * For streams with AV_DISPOSITION_ATTACHED_PIC disposition, this packet - * will contain the attached picture. - * - * decoding: set by libavformat, must not be modified by the caller. - * encoding: unused - */ - AVPacket attached_pic; - - /** - * An array of side data that applies to the whole stream (i.e. the - * container does not allow it to change between packets). - * - * There may be no overlap between the side data in this array and side data - * in the packets. I.e. a given side data is either exported by the muxer - * (demuxing) / set by the caller (muxing) in this array, then it never - * appears in the packets, or the side data is exported / sent through - * the packets (always in the first packet where the value becomes known or - * changes), then it does not appear in this array. - * - * - demuxing: Set by libavformat when the stream is created. - * - muxing: May be set by the caller before avformat_write_header(). - * - * Freed by libavformat in avformat_free_context(). - * - * @see av_format_inject_global_side_data() - */ - AVPacketSideData *side_data; - /** - * The number of elements in the AVStream.side_data array. - */ - int nb_side_data; - - /** - * Flags for the user to detect events happening on the stream. Flags must - * be cleared by the user once the event has been handled. - * A combination of AVSTREAM_EVENT_FLAG_*. - */ - int event_flags; -#define AVSTREAM_EVENT_FLAG_METADATA_UPDATED 0x0001 ///< The call resulted in updated metadata. - - /** - * Real base framerate of the stream. - * This is the lowest framerate with which all timestamps can be - * represented accurately (it is the least common multiple of all - * framerates in the stream). Note, this value is just a guess! - * For example, if the time base is 1/90000 and all frames have either - * approximately 3600 or 1800 timer ticks, then r_frame_rate will be 50/1. - */ - AVRational r_frame_rate; - -#if FF_API_LAVF_FFSERVER - /** - * String containing pairs of key and values describing recommended encoder configuration. - * Pairs are separated by ','. - * Keys are separated from values by '='. - * - * @deprecated unused - */ - attribute_deprecated - char *recommended_encoder_configuration; -#endif - - /** - * Codec parameters associated with this stream. Allocated and freed by - * libavformat in avformat_new_stream() and avformat_free_context() - * respectively. - * - * - demuxing: filled by libavformat on stream creation or in - * avformat_find_stream_info() - * - muxing: filled by the caller before avformat_write_header() - */ - AVCodecParameters *codecpar; - - /***************************************************************** - * All fields below this line are not part of the public API. They - * may not be used outside of libavformat and can be changed and - * removed at will. - * Internal note: be aware that physically removing these fields - * will break ABI. Replace removed fields with dummy fields, and - * add new fields to AVStreamInternal. - ***************************************************************** - */ - -#define MAX_STD_TIMEBASES (30*12+30+3+6) - /** - * Stream information used internally by avformat_find_stream_info() - */ - struct { - int64_t last_dts; - int64_t duration_gcd; - int duration_count; - int64_t rfps_duration_sum; - double (*duration_error)[2][MAX_STD_TIMEBASES]; - int64_t codec_info_duration; - int64_t codec_info_duration_fields; - int frame_delay_evidence; - - /** - * 0 -> decoder has not been searched for yet. - * >0 -> decoder found - * <0 -> decoder with codec_id == -found_decoder has not been found - */ - int found_decoder; - - int64_t last_duration; - - /** - * Those are used for average framerate estimation. - */ - int64_t fps_first_dts; - int fps_first_dts_idx; - int64_t fps_last_dts; - int fps_last_dts_idx; - - } *info; - - int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */ - - // Timestamp generation support: - /** - * Timestamp corresponding to the last dts sync point. - * - * Initialized when AVCodecParserContext.dts_sync_point >= 0 and - * a DTS is received from the underlying container. Otherwise set to - * AV_NOPTS_VALUE by default. - */ - int64_t first_dts; - int64_t cur_dts; - int64_t last_IP_pts; - int last_IP_duration; - - /** - * Number of packets to buffer for codec probing - */ - int probe_packets; - - /** - * Number of frames that have been demuxed during avformat_find_stream_info() - */ - int codec_info_nb_frames; - - /* av_read_frame() support */ - enum AVStreamParseType need_parsing; - struct AVCodecParserContext *parser; - - /** - * last packet in packet_buffer for this stream when muxing. - */ - struct AVPacketList *last_in_packet_buffer; - AVProbeData probe_data; -#define MAX_REORDER_DELAY 16 - int64_t pts_buffer[MAX_REORDER_DELAY+1]; - - AVIndexEntry *index_entries; /**< Only used if the format does not - support seeking natively. */ - int nb_index_entries; - unsigned int index_entries_allocated_size; - - /** - * Stream Identifier - * This is the MPEG-TS stream identifier +1 - * 0 means unknown - */ - int stream_identifier; - - /** - * Details of the MPEG-TS program which created this stream. - */ - int program_num; - int pmt_version; - int pmt_stream_idx; - - int64_t interleaver_chunk_size; - int64_t interleaver_chunk_duration; - - /** - * stream probing state - * -1 -> probing finished - * 0 -> no probing requested - * rest -> perform probing with request_probe being the minimum score to accept. - * NOT PART OF PUBLIC API - */ - int request_probe; - /** - * Indicates that everything up to the next keyframe - * should be discarded. - */ - int skip_to_keyframe; - - /** - * Number of samples to skip at the start of the frame decoded from the next packet. - */ - int skip_samples; - - /** - * If not 0, the number of samples that should be skipped from the start of - * the stream (the samples are removed from packets with pts==0, which also - * assumes negative timestamps do not happen). - * Intended for use with formats such as mp3 with ad-hoc gapless audio - * support. - */ - int64_t start_skip_samples; - - /** - * If not 0, the first audio sample that should be discarded from the stream. - * This is broken by design (needs global sample count), but can't be - * avoided for broken by design formats such as mp3 with ad-hoc gapless - * audio support. - */ - int64_t first_discard_sample; - - /** - * The sample after last sample that is intended to be discarded after - * first_discard_sample. Works on frame boundaries only. Used to prevent - * early EOF if the gapless info is broken (considered concatenated mp3s). - */ - int64_t last_discard_sample; - - /** - * Number of internally decoded frames, used internally in libavformat, do not access - * its lifetime differs from info which is why it is not in that structure. - */ - int nb_decoded_frames; - - /** - * Timestamp offset added to timestamps before muxing - * NOT PART OF PUBLIC API - */ - int64_t mux_ts_offset; - - /** - * Internal data to check for wrapping of the time stamp - */ - int64_t pts_wrap_reference; - - /** - * Options for behavior, when a wrap is detected. - * - * Defined by AV_PTS_WRAP_ values. - * - * If correction is enabled, there are two possibilities: - * If the first time stamp is near the wrap point, the wrap offset - * will be subtracted, which will create negative time stamps. - * Otherwise the offset will be added. - */ - int pts_wrap_behavior; - - /** - * Internal data to prevent doing update_initial_durations() twice - */ - int update_initial_durations_done; - - /** - * Internal data to generate dts from pts - */ - int64_t pts_reorder_error[MAX_REORDER_DELAY+1]; - uint8_t pts_reorder_error_count[MAX_REORDER_DELAY+1]; - - /** - * Internal data to analyze DTS and detect faulty mpeg streams - */ - int64_t last_dts_for_order_check; - uint8_t dts_ordered; - uint8_t dts_misordered; - - /** - * Internal data to inject global side data - */ - int inject_global_side_data; - - /** - * display aspect ratio (0 if unknown) - * - encoding: unused - * - decoding: Set by libavformat to calculate sample_aspect_ratio internally - */ - AVRational display_aspect_ratio; - - /** - * An opaque field for libavformat internal usage. - * Must not be accessed in any way by callers. - */ - AVStreamInternal *internal; -} AVStream; - -#if FF_API_FORMAT_GET_SET -/** - * Accessors for some AVStream fields. These used to be provided for ABI - * compatibility, and do not need to be used anymore. - */ -attribute_deprecated -AVRational av_stream_get_r_frame_rate(const AVStream *s); -attribute_deprecated -void av_stream_set_r_frame_rate(AVStream *s, AVRational r); -#if FF_API_LAVF_FFSERVER -attribute_deprecated -char* av_stream_get_recommended_encoder_configuration(const AVStream *s); -attribute_deprecated -void av_stream_set_recommended_encoder_configuration(AVStream *s, char *configuration); -#endif -#endif - -struct AVCodecParserContext *av_stream_get_parser(const AVStream *s); - -/** - * Returns the pts of the last muxed packet + its duration - * - * the retuned value is undefined when used with a demuxer. - */ -int64_t av_stream_get_end_pts(const AVStream *st); - -#define AV_PROGRAM_RUNNING 1 - -/** - * New fields can be added to the end with minor version bumps. - * Removal, reordering and changes to existing fields require a major - * version bump. - * sizeof(AVProgram) must not be used outside libav*. - */ -typedef struct AVProgram { - int id; - int flags; - enum AVDiscard discard; ///< selects which program to discard and which to feed to the caller - unsigned int *stream_index; - unsigned int nb_stream_indexes; - AVDictionary *metadata; - - int program_num; - int pmt_pid; - int pcr_pid; - int pmt_version; - - /***************************************************************** - * All fields below this line are not part of the public API. They - * may not be used outside of libavformat and can be changed and - * removed at will. - * New public fields should be added right above. - ***************************************************************** - */ - int64_t start_time; - int64_t end_time; - - int64_t pts_wrap_reference; ///< reference dts for wrap detection - int pts_wrap_behavior; ///< behavior on wrap detection -} AVProgram; - -#define AVFMTCTX_NOHEADER 0x0001 /**< signal that no header is present - (streams are added dynamically) */ -#define AVFMTCTX_UNSEEKABLE 0x0002 /**< signal that the stream is definitely - not seekable, and attempts to call the - seek function will fail. For some - network protocols (e.g. HLS), this can - change dynamically at runtime. */ - -typedef struct AVChapter { - int id; ///< unique ID to identify the chapter - AVRational time_base; ///< time base in which the start/end timestamps are specified - int64_t start, end; ///< chapter start/end time in time_base units - AVDictionary *metadata; -} AVChapter; - - -/** - * Callback used by devices to communicate with application. - */ -typedef int (*av_format_control_message)(struct AVFormatContext *s, int type, - void *data, size_t data_size); - -typedef int (*AVOpenCallback)(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags, - const AVIOInterruptCB *int_cb, AVDictionary **options); - -/** - * The duration of a video can be estimated through various ways, and this enum can be used - * to know how the duration was estimated. - */ -enum AVDurationEstimationMethod { - AVFMT_DURATION_FROM_PTS, ///< Duration accurately estimated from PTSes - AVFMT_DURATION_FROM_STREAM, ///< Duration estimated from a stream with a known duration - AVFMT_DURATION_FROM_BITRATE ///< Duration estimated from bitrate (less accurate) -}; - -typedef struct AVFormatInternal AVFormatInternal; - -/** - * Format I/O context. - * New fields can be added to the end with minor version bumps. - * Removal, reordering and changes to existing fields require a major - * version bump. - * sizeof(AVFormatContext) must not be used outside libav*, use - * avformat_alloc_context() to create an AVFormatContext. - * - * Fields can be accessed through AVOptions (av_opt*), - * the name string used matches the associated command line parameter name and - * can be found in libavformat/options_table.h. - * The AVOption/command line parameter names differ in some cases from the C - * structure field names for historic reasons or brevity. - */ -typedef struct AVFormatContext { - /** - * A class for logging and @ref avoptions. Set by avformat_alloc_context(). - * Exports (de)muxer private options if they exist. - */ - const AVClass *av_class; - - /** - * The input container format. - * - * Demuxing only, set by avformat_open_input(). - */ - struct AVInputFormat *iformat; - - /** - * The output container format. - * - * Muxing only, must be set by the caller before avformat_write_header(). - */ - struct AVOutputFormat *oformat; - - /** - * Format private data. This is an AVOptions-enabled struct - * if and only if iformat/oformat.priv_class is not NULL. - * - * - muxing: set by avformat_write_header() - * - demuxing: set by avformat_open_input() - */ - void *priv_data; - - /** - * I/O context. - * - * - demuxing: either set by the user before avformat_open_input() (then - * the user must close it manually) or set by avformat_open_input(). - * - muxing: set by the user before avformat_write_header(). The caller must - * take care of closing / freeing the IO context. - * - * Do NOT set this field if AVFMT_NOFILE flag is set in - * iformat/oformat.flags. In such a case, the (de)muxer will handle - * I/O in some other way and this field will be NULL. - */ - AVIOContext *pb; - - /* stream info */ - /** - * Flags signalling stream properties. A combination of AVFMTCTX_*. - * Set by libavformat. - */ - int ctx_flags; - - /** - * Number of elements in AVFormatContext.streams. - * - * Set by avformat_new_stream(), must not be modified by any other code. - */ - unsigned int nb_streams; - /** - * A list of all streams in the file. New streams are created with - * avformat_new_stream(). - * - * - demuxing: streams are created by libavformat in avformat_open_input(). - * If AVFMTCTX_NOHEADER is set in ctx_flags, then new streams may also - * appear in av_read_frame(). - * - muxing: streams are created by the user before avformat_write_header(). - * - * Freed by libavformat in avformat_free_context(). - */ - AVStream **streams; - -#if FF_API_FORMAT_FILENAME - /** - * input or output filename - * - * - demuxing: set by avformat_open_input() - * - muxing: may be set by the caller before avformat_write_header() - * - * @deprecated Use url instead. - */ - attribute_deprecated - char filename[1024]; -#endif - - /** - * input or output URL. Unlike the old filename field, this field has no - * length restriction. - * - * - demuxing: set by avformat_open_input(), initialized to an empty - * string if url parameter was NULL in avformat_open_input(). - * - muxing: may be set by the caller before calling avformat_write_header() - * (or avformat_init_output() if that is called first) to a string - * which is freeable by av_free(). Set to an empty string if it - * was NULL in avformat_init_output(). - * - * Freed by libavformat in avformat_free_context(). - */ - char *url; - - /** - * Position of the first frame of the component, in - * AV_TIME_BASE fractional seconds. NEVER set this value directly: - * It is deduced from the AVStream values. - * - * Demuxing only, set by libavformat. - */ - int64_t start_time; - - /** - * Duration of the stream, in AV_TIME_BASE fractional - * seconds. Only set this value if you know none of the individual stream - * durations and also do not set any of them. This is deduced from the - * AVStream values if not set. - * - * Demuxing only, set by libavformat. - */ - int64_t duration; - - /** - * Total stream bitrate in bit/s, 0 if not - * available. Never set it directly if the file_size and the - * duration are known as FFmpeg can compute it automatically. - */ - int64_t bit_rate; - - unsigned int packet_size; - int max_delay; - - /** - * Flags modifying the (de)muxer behaviour. A combination of AVFMT_FLAG_*. - * Set by the user before avformat_open_input() / avformat_write_header(). - */ - int flags; -#define AVFMT_FLAG_GENPTS 0x0001 ///< Generate missing pts even if it requires parsing future frames. -#define AVFMT_FLAG_IGNIDX 0x0002 ///< Ignore index. -#define AVFMT_FLAG_NONBLOCK 0x0004 ///< Do not block when reading packets from input. -#define AVFMT_FLAG_IGNDTS 0x0008 ///< Ignore DTS on frames that contain both DTS & PTS -#define AVFMT_FLAG_NOFILLIN 0x0010 ///< Do not infer any values from other values, just return what is stored in the container -#define AVFMT_FLAG_NOPARSE 0x0020 ///< Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled -#define AVFMT_FLAG_NOBUFFER 0x0040 ///< Do not buffer frames when possible -#define AVFMT_FLAG_CUSTOM_IO 0x0080 ///< The caller has supplied a custom AVIOContext, don't avio_close() it. -#define AVFMT_FLAG_DISCARD_CORRUPT 0x0100 ///< Discard frames marked corrupted -#define AVFMT_FLAG_FLUSH_PACKETS 0x0200 ///< Flush the AVIOContext every packet. -/** - * When muxing, try to avoid writing any random/volatile data to the output. - * This includes any random IDs, real-time timestamps/dates, muxer version, etc. - * - * This flag is mainly intended for testing. - */ -#define AVFMT_FLAG_BITEXACT 0x0400 -#if FF_API_LAVF_MP4A_LATM -#define AVFMT_FLAG_MP4A_LATM 0x8000 ///< Deprecated, does nothing. -#endif -#define AVFMT_FLAG_SORT_DTS 0x10000 ///< try to interleave outputted packets by dts (using this flag can slow demuxing down) -#define AVFMT_FLAG_PRIV_OPT 0x20000 ///< Enable use of private options by delaying codec open (this could be made default once all code is converted) -#if FF_API_LAVF_KEEPSIDE_FLAG -#define AVFMT_FLAG_KEEP_SIDE_DATA 0x40000 ///< Deprecated, does nothing. -#endif -#define AVFMT_FLAG_FAST_SEEK 0x80000 ///< Enable fast, but inaccurate seeks for some formats -#define AVFMT_FLAG_SHORTEST 0x100000 ///< Stop muxing when the shortest stream stops. -#define AVFMT_FLAG_AUTO_BSF 0x200000 ///< Add bitstream filters as requested by the muxer - - /** - * Maximum size of the data read from input for determining - * the input container format. - * Demuxing only, set by the caller before avformat_open_input(). - */ - int64_t probesize; - - /** - * Maximum duration (in AV_TIME_BASE units) of the data read - * from input in avformat_find_stream_info(). - * Demuxing only, set by the caller before avformat_find_stream_info(). - * Can be set to 0 to let avformat choose using a heuristic. - */ - int64_t max_analyze_duration; - - const uint8_t *key; - int keylen; - - unsigned int nb_programs; - AVProgram **programs; - - /** - * Forced video codec_id. - * Demuxing: Set by user. - */ - enum AVCodecID video_codec_id; - - /** - * Forced audio codec_id. - * Demuxing: Set by user. - */ - enum AVCodecID audio_codec_id; - - /** - * Forced subtitle codec_id. - * Demuxing: Set by user. - */ - enum AVCodecID subtitle_codec_id; - - /** - * Maximum amount of memory in bytes to use for the index of each stream. - * If the index exceeds this size, entries will be discarded as - * needed to maintain a smaller size. This can lead to slower or less - * accurate seeking (depends on demuxer). - * Demuxers for which a full in-memory index is mandatory will ignore - * this. - * - muxing: unused - * - demuxing: set by user - */ - unsigned int max_index_size; - - /** - * Maximum amount of memory in bytes to use for buffering frames - * obtained from realtime capture devices. - */ - unsigned int max_picture_buffer; - - /** - * Number of chapters in AVChapter array. - * When muxing, chapters are normally written in the file header, - * so nb_chapters should normally be initialized before write_header - * is called. Some muxers (e.g. mov and mkv) can also write chapters - * in the trailer. To write chapters in the trailer, nb_chapters - * must be zero when write_header is called and non-zero when - * write_trailer is called. - * - muxing: set by user - * - demuxing: set by libavformat - */ - unsigned int nb_chapters; - AVChapter **chapters; - - /** - * Metadata that applies to the whole file. - * - * - demuxing: set by libavformat in avformat_open_input() - * - muxing: may be set by the caller before avformat_write_header() - * - * Freed by libavformat in avformat_free_context(). - */ - AVDictionary *metadata; - - /** - * Start time of the stream in real world time, in microseconds - * since the Unix epoch (00:00 1st January 1970). That is, pts=0 in the - * stream was captured at this real world time. - * - muxing: Set by the caller before avformat_write_header(). If set to - * either 0 or AV_NOPTS_VALUE, then the current wall-time will - * be used. - * - demuxing: Set by libavformat. AV_NOPTS_VALUE if unknown. Note that - * the value may become known after some number of frames - * have been received. - */ - int64_t start_time_realtime; - - /** - * The number of frames used for determining the framerate in - * avformat_find_stream_info(). - * Demuxing only, set by the caller before avformat_find_stream_info(). - */ - int fps_probe_size; - - /** - * Error recognition; higher values will detect more errors but may - * misdetect some more or less valid parts as errors. - * Demuxing only, set by the caller before avformat_open_input(). - */ - int error_recognition; - - /** - * Custom interrupt callbacks for the I/O layer. - * - * demuxing: set by the user before avformat_open_input(). - * muxing: set by the user before avformat_write_header() - * (mainly useful for AVFMT_NOFILE formats). The callback - * should also be passed to avio_open2() if it's used to - * open the file. - */ - AVIOInterruptCB interrupt_callback; - - /** - * Flags to enable debugging. - */ - int debug; -#define FF_FDEBUG_TS 0x0001 - - /** - * Maximum buffering duration for interleaving. - * - * To ensure all the streams are interleaved correctly, - * av_interleaved_write_frame() will wait until it has at least one packet - * for each stream before actually writing any packets to the output file. - * When some streams are "sparse" (i.e. there are large gaps between - * successive packets), this can result in excessive buffering. - * - * This field specifies the maximum difference between the timestamps of the - * first and the last packet in the muxing queue, above which libavformat - * will output a packet regardless of whether it has queued a packet for all - * the streams. - * - * Muxing only, set by the caller before avformat_write_header(). - */ - int64_t max_interleave_delta; - - /** - * Allow non-standard and experimental extension - * @see AVCodecContext.strict_std_compliance - */ - int strict_std_compliance; - - /** - * Flags for the user to detect events happening on the file. Flags must - * be cleared by the user once the event has been handled. - * A combination of AVFMT_EVENT_FLAG_*. - */ - int event_flags; -#define AVFMT_EVENT_FLAG_METADATA_UPDATED 0x0001 ///< The call resulted in updated metadata. - - /** - * Maximum number of packets to read while waiting for the first timestamp. - * Decoding only. - */ - int max_ts_probe; - - /** - * Avoid negative timestamps during muxing. - * Any value of the AVFMT_AVOID_NEG_TS_* constants. - * Note, this only works when using av_interleaved_write_frame. (interleave_packet_per_dts is in use) - * - muxing: Set by user - * - demuxing: unused - */ - int avoid_negative_ts; -#define AVFMT_AVOID_NEG_TS_AUTO -1 ///< Enabled when required by target format -#define AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE 1 ///< Shift timestamps so they are non negative -#define AVFMT_AVOID_NEG_TS_MAKE_ZERO 2 ///< Shift timestamps so that they start at 0 - - /** - * Transport stream id. - * This will be moved into demuxer private options. Thus no API/ABI compatibility - */ - int ts_id; - - /** - * Audio preload in microseconds. - * Note, not all formats support this and unpredictable things may happen if it is used when not supported. - * - encoding: Set by user - * - decoding: unused - */ - int audio_preload; - - /** - * Max chunk time in microseconds. - * Note, not all formats support this and unpredictable things may happen if it is used when not supported. - * - encoding: Set by user - * - decoding: unused - */ - int max_chunk_duration; - - /** - * Max chunk size in bytes - * Note, not all formats support this and unpredictable things may happen if it is used when not supported. - * - encoding: Set by user - * - decoding: unused - */ - int max_chunk_size; - - /** - * forces the use of wallclock timestamps as pts/dts of packets - * This has undefined results in the presence of B frames. - * - encoding: unused - * - decoding: Set by user - */ - int use_wallclock_as_timestamps; - - /** - * avio flags, used to force AVIO_FLAG_DIRECT. - * - encoding: unused - * - decoding: Set by user - */ - int avio_flags; - - /** - * The duration field can be estimated through various ways, and this field can be used - * to know how the duration was estimated. - * - encoding: unused - * - decoding: Read by user - */ - enum AVDurationEstimationMethod duration_estimation_method; - - /** - * Skip initial bytes when opening stream - * - encoding: unused - * - decoding: Set by user - */ - int64_t skip_initial_bytes; - - /** - * Correct single timestamp overflows - * - encoding: unused - * - decoding: Set by user - */ - unsigned int correct_ts_overflow; - - /** - * Force seeking to any (also non key) frames. - * - encoding: unused - * - decoding: Set by user - */ - int seek2any; - - /** - * Flush the I/O context after each packet. - * - encoding: Set by user - * - decoding: unused - */ - int flush_packets; - - /** - * format probing score. - * The maximal score is AVPROBE_SCORE_MAX, its set when the demuxer probes - * the format. - * - encoding: unused - * - decoding: set by avformat, read by user - */ - int probe_score; - - /** - * number of bytes to read maximally to identify format. - * - encoding: unused - * - decoding: set by user - */ - int format_probesize; - - /** - * ',' separated list of allowed decoders. - * If NULL then all are allowed - * - encoding: unused - * - decoding: set by user - */ - char *codec_whitelist; - - /** - * ',' separated list of allowed demuxers. - * If NULL then all are allowed - * - encoding: unused - * - decoding: set by user - */ - char *format_whitelist; - - /** - * An opaque field for libavformat internal usage. - * Must not be accessed in any way by callers. - */ - AVFormatInternal *internal; - - /** - * IO repositioned flag. - * This is set by avformat when the underlaying IO context read pointer - * is repositioned, for example when doing byte based seeking. - * Demuxers can use the flag to detect such changes. - */ - int io_repositioned; - - /** - * Forced video codec. - * This allows forcing a specific decoder, even when there are multiple with - * the same codec_id. - * Demuxing: Set by user - */ - AVCodec *video_codec; - - /** - * Forced audio codec. - * This allows forcing a specific decoder, even when there are multiple with - * the same codec_id. - * Demuxing: Set by user - */ - AVCodec *audio_codec; - - /** - * Forced subtitle codec. - * This allows forcing a specific decoder, even when there are multiple with - * the same codec_id. - * Demuxing: Set by user - */ - AVCodec *subtitle_codec; - - /** - * Forced data codec. - * This allows forcing a specific decoder, even when there are multiple with - * the same codec_id. - * Demuxing: Set by user - */ - AVCodec *data_codec; - - /** - * Number of bytes to be written as padding in a metadata header. - * Demuxing: Unused. - * Muxing: Set by user via av_format_set_metadata_header_padding. - */ - int metadata_header_padding; - - /** - * User data. - * This is a place for some private data of the user. - */ - void *opaque; - - /** - * Callback used by devices to communicate with application. - */ - av_format_control_message control_message_cb; - - /** - * Output timestamp offset, in microseconds. - * Muxing: set by user - */ - int64_t output_ts_offset; - - /** - * dump format separator. - * can be ", " or "\n " or anything else - * - muxing: Set by user. - * - demuxing: Set by user. - */ - uint8_t *dump_separator; - - /** - * Forced Data codec_id. - * Demuxing: Set by user. - */ - enum AVCodecID data_codec_id; - -#if FF_API_OLD_OPEN_CALLBACKS - /** - * Called to open further IO contexts when needed for demuxing. - * - * This can be set by the user application to perform security checks on - * the URLs before opening them. - * The function should behave like avio_open2(), AVFormatContext is provided - * as contextual information and to reach AVFormatContext.opaque. - * - * If NULL then some simple checks are used together with avio_open2(). - * - * Must not be accessed directly from outside avformat. - * @See av_format_set_open_cb() - * - * Demuxing: Set by user. - * - * @deprecated Use io_open and io_close. - */ - attribute_deprecated - int (*open_cb)(struct AVFormatContext *s, AVIOContext **p, const char *url, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options); -#endif - - /** - * ',' separated list of allowed protocols. - * - encoding: unused - * - decoding: set by user - */ - char *protocol_whitelist; - - /** - * A callback for opening new IO streams. - * - * Whenever a muxer or a demuxer needs to open an IO stream (typically from - * avformat_open_input() for demuxers, but for certain formats can happen at - * other times as well), it will call this callback to obtain an IO context. - * - * @param s the format context - * @param pb on success, the newly opened IO context should be returned here - * @param url the url to open - * @param flags a combination of AVIO_FLAG_* - * @param options a dictionary of additional options, with the same - * semantics as in avio_open2() - * @return 0 on success, a negative AVERROR code on failure - * - * @note Certain muxers and demuxers do nesting, i.e. they open one or more - * additional internal format contexts. Thus the AVFormatContext pointer - * passed to this callback may be different from the one facing the caller. - * It will, however, have the same 'opaque' field. - */ - int (*io_open)(struct AVFormatContext *s, AVIOContext **pb, const char *url, - int flags, AVDictionary **options); - - /** - * A callback for closing the streams opened with AVFormatContext.io_open(). - */ - void (*io_close)(struct AVFormatContext *s, AVIOContext *pb); - - /** - * ',' separated list of disallowed protocols. - * - encoding: unused - * - decoding: set by user - */ - char *protocol_blacklist; - - /** - * The maximum number of streams. - * - encoding: unused - * - decoding: set by user - */ - int max_streams; - - /** - * Skip duration calcuation in estimate_timings_from_pts. - * - encoding: unused - * - decoding: set by user - */ - int skip_estimate_duration_from_pts; -} AVFormatContext; - -#if FF_API_FORMAT_GET_SET -/** - * Accessors for some AVFormatContext fields. These used to be provided for ABI - * compatibility, and do not need to be used anymore. - */ -attribute_deprecated -int av_format_get_probe_score(const AVFormatContext *s); -attribute_deprecated -AVCodec * av_format_get_video_codec(const AVFormatContext *s); -attribute_deprecated -void av_format_set_video_codec(AVFormatContext *s, AVCodec *c); -attribute_deprecated -AVCodec * av_format_get_audio_codec(const AVFormatContext *s); -attribute_deprecated -void av_format_set_audio_codec(AVFormatContext *s, AVCodec *c); -attribute_deprecated -AVCodec * av_format_get_subtitle_codec(const AVFormatContext *s); -attribute_deprecated -void av_format_set_subtitle_codec(AVFormatContext *s, AVCodec *c); -attribute_deprecated -AVCodec * av_format_get_data_codec(const AVFormatContext *s); -attribute_deprecated -void av_format_set_data_codec(AVFormatContext *s, AVCodec *c); -attribute_deprecated -int av_format_get_metadata_header_padding(const AVFormatContext *s); -attribute_deprecated -void av_format_set_metadata_header_padding(AVFormatContext *s, int c); -attribute_deprecated -void * av_format_get_opaque(const AVFormatContext *s); -attribute_deprecated -void av_format_set_opaque(AVFormatContext *s, void *opaque); -attribute_deprecated -av_format_control_message av_format_get_control_message_cb(const AVFormatContext *s); -attribute_deprecated -void av_format_set_control_message_cb(AVFormatContext *s, av_format_control_message callback); -#if FF_API_OLD_OPEN_CALLBACKS -attribute_deprecated AVOpenCallback av_format_get_open_cb(const AVFormatContext *s); -attribute_deprecated void av_format_set_open_cb(AVFormatContext *s, AVOpenCallback callback); -#endif -#endif - -/** - * This function will cause global side data to be injected in the next packet - * of each stream as well as after any subsequent seek. - */ -void av_format_inject_global_side_data(AVFormatContext *s); - -/** - * Returns the method used to set ctx->duration. - * - * @return AVFMT_DURATION_FROM_PTS, AVFMT_DURATION_FROM_STREAM, or AVFMT_DURATION_FROM_BITRATE. - */ -enum AVDurationEstimationMethod av_fmt_ctx_get_duration_estimation_method(const AVFormatContext* ctx); - -typedef struct AVPacketList { - AVPacket pkt; - struct AVPacketList *next; -} AVPacketList; - - -/** - * @defgroup lavf_core Core functions - * @ingroup libavf - * - * Functions for querying libavformat capabilities, allocating core structures, - * etc. - * @{ - */ - -/** - * Return the LIBAVFORMAT_VERSION_INT constant. - */ -unsigned avformat_version(void); - -/** - * Return the libavformat build-time configuration. - */ -const char *avformat_configuration(void); - -/** - * Return the libavformat license. - */ -const char *avformat_license(void); - -#if FF_API_NEXT -/** - * Initialize libavformat and register all the muxers, demuxers and - * protocols. If you do not call this function, then you can select - * exactly which formats you want to support. - * - * @see av_register_input_format() - * @see av_register_output_format() - */ -attribute_deprecated -void av_register_all(void); - -attribute_deprecated -void av_register_input_format(AVInputFormat *format); -attribute_deprecated -void av_register_output_format(AVOutputFormat *format); -#endif - -/** - * Do global initialization of network libraries. This is optional, - * and not recommended anymore. - * - * This functions only exists to work around thread-safety issues - * with older GnuTLS or OpenSSL libraries. If libavformat is linked - * to newer versions of those libraries, or if you do not use them, - * calling this function is unnecessary. Otherwise, you need to call - * this function before any other threads using them are started. - * - * This function will be deprecated once support for older GnuTLS and - * OpenSSL libraries is removed, and this function has no purpose - * anymore. - */ -int avformat_network_init(void); - -/** - * Undo the initialization done by avformat_network_init. Call it only - * once for each time you called avformat_network_init. - */ -int avformat_network_deinit(void); - -#if FF_API_NEXT -/** - * If f is NULL, returns the first registered input format, - * if f is non-NULL, returns the next registered input format after f - * or NULL if f is the last one. - */ -attribute_deprecated -AVInputFormat *av_iformat_next(const AVInputFormat *f); - -/** - * If f is NULL, returns the first registered output format, - * if f is non-NULL, returns the next registered output format after f - * or NULL if f is the last one. - */ -attribute_deprecated -AVOutputFormat *av_oformat_next(const AVOutputFormat *f); -#endif - -/** - * Iterate over all registered muxers. - * - * @param opaque a pointer where libavformat will store the iteration state. Must - * point to NULL to start the iteration. - * - * @return the next registered muxer or NULL when the iteration is - * finished - */ -const AVOutputFormat *av_muxer_iterate(void **opaque); - -/** - * Iterate over all registered demuxers. - * - * @param opaque a pointer where libavformat will store the iteration state. Must - * point to NULL to start the iteration. - * - * @return the next registered demuxer or NULL when the iteration is - * finished - */ -const AVInputFormat *av_demuxer_iterate(void **opaque); - -/** - * Allocate an AVFormatContext. - * avformat_free_context() can be used to free the context and everything - * allocated by the framework within it. - */ -AVFormatContext *avformat_alloc_context(void); - -/** - * Free an AVFormatContext and all its streams. - * @param s context to free - */ -void avformat_free_context(AVFormatContext *s); - -/** - * Get the AVClass for AVFormatContext. It can be used in combination with - * AV_OPT_SEARCH_FAKE_OBJ for examining options. - * - * @see av_opt_find(). - */ -const AVClass *avformat_get_class(void); - -/** - * Add a new stream to a media file. - * - * When demuxing, it is called by the demuxer in read_header(). If the - * flag AVFMTCTX_NOHEADER is set in s.ctx_flags, then it may also - * be called in read_packet(). - * - * When muxing, should be called by the user before avformat_write_header(). - * - * User is required to call avcodec_close() and avformat_free_context() to - * clean up the allocation by avformat_new_stream(). - * - * @param s media file handle - * @param c If non-NULL, the AVCodecContext corresponding to the new stream - * will be initialized to use this codec. This is needed for e.g. codec-specific - * defaults to be set, so codec should be provided if it is known. - * - * @return newly created stream or NULL on error. - */ -AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c); - -/** - * Wrap an existing array as stream side data. - * - * @param st stream - * @param type side information type - * @param data the side data array. It must be allocated with the av_malloc() - * family of functions. The ownership of the data is transferred to - * st. - * @param size side information size - * @return zero on success, a negative AVERROR code on failure. On failure, - * the stream is unchanged and the data remains owned by the caller. - */ -int av_stream_add_side_data(AVStream *st, enum AVPacketSideDataType type, - uint8_t *data, size_t size); - -/** - * Allocate new information from stream. - * - * @param stream stream - * @param type desired side information type - * @param size side information size - * @return pointer to fresh allocated data or NULL otherwise - */ -uint8_t *av_stream_new_side_data(AVStream *stream, - enum AVPacketSideDataType type, int size); -/** - * Get side information from stream. - * - * @param stream stream - * @param type desired side information type - * @param size pointer for side information size to store (optional) - * @return pointer to data if present or NULL otherwise - */ -uint8_t *av_stream_get_side_data(const AVStream *stream, - enum AVPacketSideDataType type, int *size); - -AVProgram *av_new_program(AVFormatContext *s, int id); - -/** - * @} - */ - - -/** - * Allocate an AVFormatContext for an output format. - * avformat_free_context() can be used to free the context and - * everything allocated by the framework within it. - * - * @param *ctx is set to the created format context, or to NULL in - * case of failure - * @param oformat format to use for allocating the context, if NULL - * format_name and filename are used instead - * @param format_name the name of output format to use for allocating the - * context, if NULL filename is used instead - * @param filename the name of the filename to use for allocating the - * context, may be NULL - * @return >= 0 in case of success, a negative AVERROR code in case of - * failure - */ -int avformat_alloc_output_context2(AVFormatContext **ctx, AVOutputFormat *oformat, - const char *format_name, const char *filename); - -/** - * @addtogroup lavf_decoding - * @{ - */ - -/** - * Find AVInputFormat based on the short name of the input format. - */ -AVInputFormat *av_find_input_format(const char *short_name); - -/** - * Guess the file format. - * - * @param pd data to be probed - * @param is_opened Whether the file is already opened; determines whether - * demuxers with or without AVFMT_NOFILE are probed. - */ -AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened); - -/** - * Guess the file format. - * - * @param pd data to be probed - * @param is_opened Whether the file is already opened; determines whether - * demuxers with or without AVFMT_NOFILE are probed. - * @param score_max A probe score larger that this is required to accept a - * detection, the variable is set to the actual detection - * score afterwards. - * If the score is <= AVPROBE_SCORE_MAX / 4 it is recommended - * to retry with a larger probe buffer. - */ -AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max); - -/** - * Guess the file format. - * - * @param is_opened Whether the file is already opened; determines whether - * demuxers with or without AVFMT_NOFILE are probed. - * @param score_ret The score of the best detection. - */ -AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score_ret); - -/** - * Probe a bytestream to determine the input format. Each time a probe returns - * with a score that is too low, the probe buffer size is increased and another - * attempt is made. When the maximum probe size is reached, the input format - * with the highest score is returned. - * - * @param pb the bytestream to probe - * @param fmt the input format is put here - * @param url the url of the stream - * @param logctx the log context - * @param offset the offset within the bytestream to probe from - * @param max_probe_size the maximum probe buffer size (zero for default) - * @return the score in case of success, a negative value corresponding to an - * the maximal score is AVPROBE_SCORE_MAX - * AVERROR code otherwise - */ -int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt, - const char *url, void *logctx, - unsigned int offset, unsigned int max_probe_size); - -/** - * Like av_probe_input_buffer2() but returns 0 on success - */ -int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt, - const char *url, void *logctx, - unsigned int offset, unsigned int max_probe_size); - -/** - * Open an input stream and read the header. The codecs are not opened. - * The stream must be closed with avformat_close_input(). - * - * @param ps Pointer to user-supplied AVFormatContext (allocated by avformat_alloc_context). - * May be a pointer to NULL, in which case an AVFormatContext is allocated by this - * function and written into ps. - * Note that a user-supplied AVFormatContext will be freed on failure. - * @param url URL of the stream to open. - * @param fmt If non-NULL, this parameter forces a specific input format. - * Otherwise the format is autodetected. - * @param options A dictionary filled with AVFormatContext and demuxer-private options. - * On return this parameter will be destroyed and replaced with a dict containing - * options that were not found. May be NULL. - * - * @return 0 on success, a negative AVERROR on failure. - * - * @note If you want to use custom IO, preallocate the format context and set its pb field. - */ -int avformat_open_input(AVFormatContext **ps, const char *url, AVInputFormat *fmt, AVDictionary **options); - -attribute_deprecated -int av_demuxer_open(AVFormatContext *ic); - -/** - * Read packets of a media file to get stream information. This - * is useful for file formats with no headers such as MPEG. This - * function also computes the real framerate in case of MPEG-2 repeat - * frame mode. - * The logical file position is not changed by this function; - * examined packets may be buffered for later processing. - * - * @param ic media file handle - * @param options If non-NULL, an ic.nb_streams long array of pointers to - * dictionaries, where i-th member contains options for - * codec corresponding to i-th stream. - * On return each dictionary will be filled with options that were not found. - * @return >=0 if OK, AVERROR_xxx on error - * - * @note this function isn't guaranteed to open all the codecs, so - * options being non-empty at return is a perfectly normal behavior. - * - * @todo Let the user decide somehow what information is needed so that - * we do not waste time getting stuff the user does not need. - */ -int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options); - -/** - * Find the programs which belong to a given stream. - * - * @param ic media file handle - * @param last the last found program, the search will start after this - * program, or from the beginning if it is NULL - * @param s stream index - * @return the next program which belongs to s, NULL if no program is found or - * the last program is not among the programs of ic. - */ -AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s); - -void av_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx); - -/** - * Find the "best" stream in the file. - * The best stream is determined according to various heuristics as the most - * likely to be what the user expects. - * If the decoder parameter is non-NULL, av_find_best_stream will find the - * default decoder for the stream's codec; streams for which no decoder can - * be found are ignored. - * - * @param ic media file handle - * @param type stream type: video, audio, subtitles, etc. - * @param wanted_stream_nb user-requested stream number, - * or -1 for automatic selection - * @param related_stream try to find a stream related (eg. in the same - * program) to this one, or -1 if none - * @param decoder_ret if non-NULL, returns the decoder for the - * selected stream - * @param flags flags; none are currently defined - * @return the non-negative stream number in case of success, - * AVERROR_STREAM_NOT_FOUND if no stream with the requested type - * could be found, - * AVERROR_DECODER_NOT_FOUND if streams were found but no decoder - * @note If av_find_best_stream returns successfully and decoder_ret is not - * NULL, then *decoder_ret is guaranteed to be set to a valid AVCodec. - */ -int av_find_best_stream(AVFormatContext *ic, - enum AVMediaType type, - int wanted_stream_nb, - int related_stream, - AVCodec **decoder_ret, - int flags); - -/** - * Return the next frame of a stream. - * This function returns what is stored in the file, and does not validate - * that what is there are valid frames for the decoder. It will split what is - * stored in the file into frames and return one for each call. It will not - * omit invalid data between valid frames so as to give the decoder the maximum - * information possible for decoding. - * - * If pkt->buf is NULL, then the packet is valid until the next - * av_read_frame() or until avformat_close_input(). Otherwise the packet - * is valid indefinitely. In both cases the packet must be freed with - * av_packet_unref when it is no longer needed. For video, the packet contains - * exactly one frame. For audio, it contains an integer number of frames if each - * frame has a known fixed size (e.g. PCM or ADPCM data). If the audio frames - * have a variable size (e.g. MPEG audio), then it contains one frame. - * - * pkt->pts, pkt->dts and pkt->duration are always set to correct - * values in AVStream.time_base units (and guessed if the format cannot - * provide them). pkt->pts can be AV_NOPTS_VALUE if the video format - * has B-frames, so it is better to rely on pkt->dts if you do not - * decompress the payload. - * - * @return 0 if OK, < 0 on error or end of file - */ -int av_read_frame(AVFormatContext *s, AVPacket *pkt); - -/** - * Seek to the keyframe at timestamp. - * 'timestamp' in 'stream_index'. - * - * @param s media file handle - * @param stream_index If stream_index is (-1), a default - * stream is selected, and timestamp is automatically converted - * from AV_TIME_BASE units to the stream specific time_base. - * @param timestamp Timestamp in AVStream.time_base units - * or, if no stream is specified, in AV_TIME_BASE units. - * @param flags flags which select direction and seeking mode - * @return >= 0 on success - */ -int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, - int flags); - -/** - * Seek to timestamp ts. - * Seeking will be done so that the point from which all active streams - * can be presented successfully will be closest to ts and within min/max_ts. - * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL. - * - * If flags contain AVSEEK_FLAG_BYTE, then all timestamps are in bytes and - * are the file position (this may not be supported by all demuxers). - * If flags contain AVSEEK_FLAG_FRAME, then all timestamps are in frames - * in the stream with stream_index (this may not be supported by all demuxers). - * Otherwise all timestamps are in units of the stream selected by stream_index - * or if stream_index is -1, in AV_TIME_BASE units. - * If flags contain AVSEEK_FLAG_ANY, then non-keyframes are treated as - * keyframes (this may not be supported by all demuxers). - * If flags contain AVSEEK_FLAG_BACKWARD, it is ignored. - * - * @param s media file handle - * @param stream_index index of the stream which is used as time base reference - * @param min_ts smallest acceptable timestamp - * @param ts target timestamp - * @param max_ts largest acceptable timestamp - * @param flags flags - * @return >=0 on success, error code otherwise - * - * @note This is part of the new seek API which is still under construction. - * Thus do not use this yet. It may change at any time, do not expect - * ABI compatibility yet! - */ -int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags); - -/** - * Discard all internally buffered data. This can be useful when dealing with - * discontinuities in the byte stream. Generally works only with formats that - * can resync. This includes headerless formats like MPEG-TS/TS but should also - * work with NUT, Ogg and in a limited way AVI for example. - * - * The set of streams, the detected duration, stream parameters and codecs do - * not change when calling this function. If you want a complete reset, it's - * better to open a new AVFormatContext. - * - * This does not flush the AVIOContext (s->pb). If necessary, call - * avio_flush(s->pb) before calling this function. - * - * @param s media file handle - * @return >=0 on success, error code otherwise - */ -int avformat_flush(AVFormatContext *s); - -/** - * Start playing a network-based stream (e.g. RTSP stream) at the - * current position. - */ -int av_read_play(AVFormatContext *s); - -/** - * Pause a network-based stream (e.g. RTSP stream). - * - * Use av_read_play() to resume it. - */ -int av_read_pause(AVFormatContext *s); - -/** - * Close an opened input AVFormatContext. Free it and all its contents - * and set *s to NULL. - */ -void avformat_close_input(AVFormatContext **s); -/** - * @} - */ - -#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward -#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes -#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non-keyframes -#define AVSEEK_FLAG_FRAME 8 ///< seeking based on frame number - -/** - * @addtogroup lavf_encoding - * @{ - */ - -#define AVSTREAM_INIT_IN_WRITE_HEADER 0 ///< stream parameters initialized in avformat_write_header -#define AVSTREAM_INIT_IN_INIT_OUTPUT 1 ///< stream parameters initialized in avformat_init_output - -/** - * Allocate the stream private data and write the stream header to - * an output media file. - * - * @param s Media file handle, must be allocated with avformat_alloc_context(). - * Its oformat field must be set to the desired output format; - * Its pb field must be set to an already opened AVIOContext. - * @param options An AVDictionary filled with AVFormatContext and muxer-private options. - * On return this parameter will be destroyed and replaced with a dict containing - * options that were not found. May be NULL. - * - * @return AVSTREAM_INIT_IN_WRITE_HEADER on success if the codec had not already been fully initialized in avformat_init, - * AVSTREAM_INIT_IN_INIT_OUTPUT on success if the codec had already been fully initialized in avformat_init, - * negative AVERROR on failure. - * - * @see av_opt_find, av_dict_set, avio_open, av_oformat_next, avformat_init_output. - */ -av_warn_unused_result -int avformat_write_header(AVFormatContext *s, AVDictionary **options); - -/** - * Allocate the stream private data and initialize the codec, but do not write the header. - * May optionally be used before avformat_write_header to initialize stream parameters - * before actually writing the header. - * If using this function, do not pass the same options to avformat_write_header. - * - * @param s Media file handle, must be allocated with avformat_alloc_context(). - * Its oformat field must be set to the desired output format; - * Its pb field must be set to an already opened AVIOContext. - * @param options An AVDictionary filled with AVFormatContext and muxer-private options. - * On return this parameter will be destroyed and replaced with a dict containing - * options that were not found. May be NULL. - * - * @return AVSTREAM_INIT_IN_WRITE_HEADER on success if the codec requires avformat_write_header to fully initialize, - * AVSTREAM_INIT_IN_INIT_OUTPUT on success if the codec has been fully initialized, - * negative AVERROR on failure. - * - * @see av_opt_find, av_dict_set, avio_open, av_oformat_next, avformat_write_header. - */ -av_warn_unused_result -int avformat_init_output(AVFormatContext *s, AVDictionary **options); - -/** - * Write a packet to an output media file. - * - * This function passes the packet directly to the muxer, without any buffering - * or reordering. The caller is responsible for correctly interleaving the - * packets if the format requires it. Callers that want libavformat to handle - * the interleaving should call av_interleaved_write_frame() instead of this - * function. - * - * @param s media file handle - * @param pkt The packet containing the data to be written. Note that unlike - * av_interleaved_write_frame(), this function does not take - * ownership of the packet passed to it (though some muxers may make - * an internal reference to the input packet). - *
- * This parameter can be NULL (at any time, not just at the end), in - * order to immediately flush data buffered within the muxer, for - * muxers that buffer up data internally before writing it to the - * output. - *
- * Packet's @ref AVPacket.stream_index "stream_index" field must be - * set to the index of the corresponding stream in @ref - * AVFormatContext.streams "s->streams". - *
- * The timestamps (@ref AVPacket.pts "pts", @ref AVPacket.dts "dts") - * must be set to correct values in the stream's timebase (unless the - * output format is flagged with the AVFMT_NOTIMESTAMPS flag, then - * they can be set to AV_NOPTS_VALUE). - * The dts for subsequent packets passed to this function must be strictly - * increasing when compared in their respective timebases (unless the - * output format is flagged with the AVFMT_TS_NONSTRICT, then they - * merely have to be nondecreasing). @ref AVPacket.duration - * "duration") should also be set if known. - * @return < 0 on error, = 0 if OK, 1 if flushed and there is no more data to flush - * - * @see av_interleaved_write_frame() - */ -int av_write_frame(AVFormatContext *s, AVPacket *pkt); - -/** - * Write a packet to an output media file ensuring correct interleaving. - * - * This function will buffer the packets internally as needed to make sure the - * packets in the output file are properly interleaved in the order of - * increasing dts. Callers doing their own interleaving should call - * av_write_frame() instead of this function. - * - * Using this function instead of av_write_frame() can give muxers advance - * knowledge of future packets, improving e.g. the behaviour of the mp4 - * muxer for VFR content in fragmenting mode. - * - * @param s media file handle - * @param pkt The packet containing the data to be written. - *
- * If the packet is reference-counted, this function will take - * ownership of this reference and unreference it later when it sees - * fit. - * The caller must not access the data through this reference after - * this function returns. If the packet is not reference-counted, - * libavformat will make a copy. - *
- * This parameter can be NULL (at any time, not just at the end), to - * flush the interleaving queues. - *
- * Packet's @ref AVPacket.stream_index "stream_index" field must be - * set to the index of the corresponding stream in @ref - * AVFormatContext.streams "s->streams". - *
- * The timestamps (@ref AVPacket.pts "pts", @ref AVPacket.dts "dts") - * must be set to correct values in the stream's timebase (unless the - * output format is flagged with the AVFMT_NOTIMESTAMPS flag, then - * they can be set to AV_NOPTS_VALUE). - * The dts for subsequent packets in one stream must be strictly - * increasing (unless the output format is flagged with the - * AVFMT_TS_NONSTRICT, then they merely have to be nondecreasing). - * @ref AVPacket.duration "duration") should also be set if known. - * - * @return 0 on success, a negative AVERROR on error. Libavformat will always - * take care of freeing the packet, even if this function fails. - * - * @see av_write_frame(), AVFormatContext.max_interleave_delta - */ -int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt); - -/** - * Write an uncoded frame to an output media file. - * - * The frame must be correctly interleaved according to the container - * specification; if not, then av_interleaved_write_frame() must be used. - * - * See av_interleaved_write_frame() for details. - */ -int av_write_uncoded_frame(AVFormatContext *s, int stream_index, - AVFrame *frame); - -/** - * Write an uncoded frame to an output media file. - * - * If the muxer supports it, this function makes it possible to write an AVFrame - * structure directly, without encoding it into a packet. - * It is mostly useful for devices and similar special muxers that use raw - * video or PCM data and will not serialize it into a byte stream. - * - * To test whether it is possible to use it with a given muxer and stream, - * use av_write_uncoded_frame_query(). - * - * The caller gives up ownership of the frame and must not access it - * afterwards. - * - * @return >=0 for success, a negative code on error - */ -int av_interleaved_write_uncoded_frame(AVFormatContext *s, int stream_index, - AVFrame *frame); - -/** - * Test whether a muxer supports uncoded frame. - * - * @return >=0 if an uncoded frame can be written to that muxer and stream, - * <0 if not - */ -int av_write_uncoded_frame_query(AVFormatContext *s, int stream_index); - -/** - * Write the stream trailer to an output media file and free the - * file private data. - * - * May only be called after a successful call to avformat_write_header. - * - * @param s media file handle - * @return 0 if OK, AVERROR_xxx on error - */ -int av_write_trailer(AVFormatContext *s); - -/** - * Return the output format in the list of registered output formats - * which best matches the provided parameters, or return NULL if - * there is no match. - * - * @param short_name if non-NULL checks if short_name matches with the - * names of the registered formats - * @param filename if non-NULL checks if filename terminates with the - * extensions of the registered formats - * @param mime_type if non-NULL checks if mime_type matches with the - * MIME type of the registered formats - */ -AVOutputFormat *av_guess_format(const char *short_name, - const char *filename, - const char *mime_type); - -/** - * Guess the codec ID based upon muxer and filename. - */ -enum AVCodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name, - const char *filename, const char *mime_type, - enum AVMediaType type); - -/** - * Get timing information for the data currently output. - * The exact meaning of "currently output" depends on the format. - * It is mostly relevant for devices that have an internal buffer and/or - * work in real time. - * @param s media file handle - * @param stream stream in the media file - * @param[out] dts DTS of the last packet output for the stream, in stream - * time_base units - * @param[out] wall absolute time when that packet whas output, - * in microsecond - * @return 0 if OK, AVERROR(ENOSYS) if the format does not support it - * Note: some formats or devices may not allow to measure dts and wall - * atomically. - */ -int av_get_output_timestamp(struct AVFormatContext *s, int stream, - int64_t *dts, int64_t *wall); - - -/** - * @} - */ - - -/** - * @defgroup lavf_misc Utility functions - * @ingroup libavf - * @{ - * - * Miscellaneous utility functions related to both muxing and demuxing - * (or neither). - */ - -/** - * Send a nice hexadecimal dump of a buffer to the specified file stream. - * - * @param f The file stream pointer where the dump should be sent to. - * @param buf buffer - * @param size buffer size - * - * @see av_hex_dump_log, av_pkt_dump2, av_pkt_dump_log2 - */ -void av_hex_dump(FILE *f, const uint8_t *buf, int size); - -/** - * Send a nice hexadecimal dump of a buffer to the log. - * - * @param avcl A pointer to an arbitrary struct of which the first field is a - * pointer to an AVClass struct. - * @param level The importance level of the message, lower values signifying - * higher importance. - * @param buf buffer - * @param size buffer size - * - * @see av_hex_dump, av_pkt_dump2, av_pkt_dump_log2 - */ -void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size); - -/** - * Send a nice dump of a packet to the specified file stream. - * - * @param f The file stream pointer where the dump should be sent to. - * @param pkt packet to dump - * @param dump_payload True if the payload must be displayed, too. - * @param st AVStream that the packet belongs to - */ -void av_pkt_dump2(FILE *f, const AVPacket *pkt, int dump_payload, const AVStream *st); - - -/** - * Send a nice dump of a packet to the log. - * - * @param avcl A pointer to an arbitrary struct of which the first field is a - * pointer to an AVClass struct. - * @param level The importance level of the message, lower values signifying - * higher importance. - * @param pkt packet to dump - * @param dump_payload True if the payload must be displayed, too. - * @param st AVStream that the packet belongs to - */ -void av_pkt_dump_log2(void *avcl, int level, const AVPacket *pkt, int dump_payload, - const AVStream *st); - -/** - * Get the AVCodecID for the given codec tag tag. - * If no codec id is found returns AV_CODEC_ID_NONE. - * - * @param tags list of supported codec_id-codec_tag pairs, as stored - * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag - * @param tag codec tag to match to a codec ID - */ -enum AVCodecID av_codec_get_id(const struct AVCodecTag * const *tags, unsigned int tag); - -/** - * Get the codec tag for the given codec id id. - * If no codec tag is found returns 0. - * - * @param tags list of supported codec_id-codec_tag pairs, as stored - * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag - * @param id codec ID to match to a codec tag - */ -unsigned int av_codec_get_tag(const struct AVCodecTag * const *tags, enum AVCodecID id); - -/** - * Get the codec tag for the given codec id. - * - * @param tags list of supported codec_id - codec_tag pairs, as stored - * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag - * @param id codec id that should be searched for in the list - * @param tag A pointer to the found tag - * @return 0 if id was not found in tags, > 0 if it was found - */ -int av_codec_get_tag2(const struct AVCodecTag * const *tags, enum AVCodecID id, - unsigned int *tag); - -int av_find_default_stream_index(AVFormatContext *s); - -/** - * Get the index for a specific timestamp. - * - * @param st stream that the timestamp belongs to - * @param timestamp timestamp to retrieve the index for - * @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond - * to the timestamp which is <= the requested one, if backward - * is 0, then it will be >= - * if AVSEEK_FLAG_ANY seek to any frame, only keyframes otherwise - * @return < 0 if no such timestamp could be found - */ -int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags); - -/** - * Add an index entry into a sorted list. Update the entry if the list - * already contains it. - * - * @param timestamp timestamp in the time base of the given stream - */ -int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, - int size, int distance, int flags); - - -/** - * Split a URL string into components. - * - * The pointers to buffers for storing individual components may be null, - * in order to ignore that component. Buffers for components not found are - * set to empty strings. If the port is not found, it is set to a negative - * value. - * - * @param proto the buffer for the protocol - * @param proto_size the size of the proto buffer - * @param authorization the buffer for the authorization - * @param authorization_size the size of the authorization buffer - * @param hostname the buffer for the host name - * @param hostname_size the size of the hostname buffer - * @param port_ptr a pointer to store the port number in - * @param path the buffer for the path - * @param path_size the size of the path buffer - * @param url the URL to split - */ -void av_url_split(char *proto, int proto_size, - char *authorization, int authorization_size, - char *hostname, int hostname_size, - int *port_ptr, - char *path, int path_size, - const char *url); - - -/** - * Print detailed information about the input or output format, such as - * duration, bitrate, streams, container, programs, metadata, side data, - * codec and time base. - * - * @param ic the context to analyze - * @param index index of the stream to dump information about - * @param url the URL to print, such as source or destination file - * @param is_output Select whether the specified context is an input(0) or output(1) - */ -void av_dump_format(AVFormatContext *ic, - int index, - const char *url, - int is_output); - - -#define AV_FRAME_FILENAME_FLAGS_MULTIPLE 1 ///< Allow multiple %d - -/** - * Return in 'buf' the path with '%d' replaced by a number. - * - * Also handles the '%0nd' format where 'n' is the total number - * of digits and '%%'. - * - * @param buf destination buffer - * @param buf_size destination buffer size - * @param path numbered sequence string - * @param number frame number - * @param flags AV_FRAME_FILENAME_FLAGS_* - * @return 0 if OK, -1 on format error - */ -int av_get_frame_filename2(char *buf, int buf_size, - const char *path, int number, int flags); - -int av_get_frame_filename(char *buf, int buf_size, - const char *path, int number); - -/** - * Check whether filename actually is a numbered sequence generator. - * - * @param filename possible numbered sequence string - * @return 1 if a valid numbered sequence string, 0 otherwise - */ -int av_filename_number_test(const char *filename); - -/** - * Generate an SDP for an RTP session. - * - * Note, this overwrites the id values of AVStreams in the muxer contexts - * for getting unique dynamic payload types. - * - * @param ac array of AVFormatContexts describing the RTP streams. If the - * array is composed by only one context, such context can contain - * multiple AVStreams (one AVStream per RTP stream). Otherwise, - * all the contexts in the array (an AVCodecContext per RTP stream) - * must contain only one AVStream. - * @param n_files number of AVCodecContexts contained in ac - * @param buf buffer where the SDP will be stored (must be allocated by - * the caller) - * @param size the size of the buffer - * @return 0 if OK, AVERROR_xxx on error - */ -int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size); - -/** - * Return a positive value if the given filename has one of the given - * extensions, 0 otherwise. - * - * @param filename file name to check against the given extensions - * @param extensions a comma-separated list of filename extensions - */ -int av_match_ext(const char *filename, const char *extensions); - -/** - * Test if the given container can store a codec. - * - * @param ofmt container to check for compatibility - * @param codec_id codec to potentially store in container - * @param std_compliance standards compliance level, one of FF_COMPLIANCE_* - * - * @return 1 if codec with ID codec_id can be stored in ofmt, 0 if it cannot. - * A negative number if this information is not available. - */ -int avformat_query_codec(const AVOutputFormat *ofmt, enum AVCodecID codec_id, - int std_compliance); - -/** - * @defgroup riff_fourcc RIFF FourCCs - * @{ - * Get the tables mapping RIFF FourCCs to libavcodec AVCodecIDs. The tables are - * meant to be passed to av_codec_get_id()/av_codec_get_tag() as in the - * following code: - * @code - * uint32_t tag = MKTAG('H', '2', '6', '4'); - * const struct AVCodecTag *table[] = { avformat_get_riff_video_tags(), 0 }; - * enum AVCodecID id = av_codec_get_id(table, tag); - * @endcode - */ -/** - * @return the table mapping RIFF FourCCs for video to libavcodec AVCodecID. - */ -const struct AVCodecTag *avformat_get_riff_video_tags(void); -/** - * @return the table mapping RIFF FourCCs for audio to AVCodecID. - */ -const struct AVCodecTag *avformat_get_riff_audio_tags(void); -/** - * @return the table mapping MOV FourCCs for video to libavcodec AVCodecID. - */ -const struct AVCodecTag *avformat_get_mov_video_tags(void); -/** - * @return the table mapping MOV FourCCs for audio to AVCodecID. - */ -const struct AVCodecTag *avformat_get_mov_audio_tags(void); - -/** - * @} - */ - -/** - * Guess the sample aspect ratio of a frame, based on both the stream and the - * frame aspect ratio. - * - * Since the frame aspect ratio is set by the codec but the stream aspect ratio - * is set by the demuxer, these two may not be equal. This function tries to - * return the value that you should use if you would like to display the frame. - * - * Basic logic is to use the stream aspect ratio if it is set to something sane - * otherwise use the frame aspect ratio. This way a container setting, which is - * usually easy to modify can override the coded value in the frames. - * - * @param format the format context which the stream is part of - * @param stream the stream which the frame is part of - * @param frame the frame with the aspect ratio to be determined - * @return the guessed (valid) sample_aspect_ratio, 0/1 if no idea - */ -AVRational av_guess_sample_aspect_ratio(AVFormatContext *format, AVStream *stream, AVFrame *frame); - -/** - * Guess the frame rate, based on both the container and codec information. - * - * @param ctx the format context which the stream is part of - * @param stream the stream which the frame is part of - * @param frame the frame for which the frame rate should be determined, may be NULL - * @return the guessed (valid) frame rate, 0/1 if no idea - */ -AVRational av_guess_frame_rate(AVFormatContext *ctx, AVStream *stream, AVFrame *frame); - -/** - * Check if the stream st contained in s is matched by the stream specifier - * spec. - * - * See the "stream specifiers" chapter in the documentation for the syntax - * of spec. - * - * @return >0 if st is matched by spec; - * 0 if st is not matched by spec; - * AVERROR code if spec is invalid - * - * @note A stream specifier can match several streams in the format. - */ -int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st, - const char *spec); - -int avformat_queue_attached_pictures(AVFormatContext *s); - -#if FF_API_OLD_BSF -/** - * Apply a list of bitstream filters to a packet. - * - * @param codec AVCodecContext, usually from an AVStream - * @param pkt the packet to apply filters to. If, on success, the returned - * packet has size == 0 and side_data_elems == 0, it indicates that - * the packet should be dropped - * @param bsfc a NULL-terminated list of filters to apply - * @return >=0 on success; - * AVERROR code on failure - */ -attribute_deprecated -int av_apply_bitstream_filters(AVCodecContext *codec, AVPacket *pkt, - AVBitStreamFilterContext *bsfc); -#endif - -enum AVTimebaseSource { - AVFMT_TBCF_AUTO = -1, - AVFMT_TBCF_DECODER, - AVFMT_TBCF_DEMUXER, -#if FF_API_R_FRAME_RATE - AVFMT_TBCF_R_FRAMERATE, -#endif -}; - -/** - * Transfer internal timing information from one stream to another. - * - * This function is useful when doing stream copy. - * - * @param ofmt target output format for ost - * @param ost output stream which needs timings copy and adjustments - * @param ist reference input stream to copy timings from - * @param copy_tb define from where the stream codec timebase needs to be imported - */ -int avformat_transfer_internal_stream_timing_info(const AVOutputFormat *ofmt, - AVStream *ost, const AVStream *ist, - enum AVTimebaseSource copy_tb); - -/** - * Get the internal codec timebase from a stream. - * - * @param st input stream to extract the timebase from - */ -AVRational av_stream_get_codec_timebase(const AVStream *st); - -/** - * @} - */ - -#endif /* AVFORMAT_AVFORMAT_H */ diff --git a/libs/mac/include/libavformat/avio.h b/libs/mac/include/libavformat/avio.h deleted file mode 100644 index 75912ce6..00000000 --- a/libs/mac/include/libavformat/avio.h +++ /dev/null @@ -1,861 +0,0 @@ -/* - * copyright (c) 2001 Fabrice Bellard - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ -#ifndef AVFORMAT_AVIO_H -#define AVFORMAT_AVIO_H - -/** - * @file - * @ingroup lavf_io - * Buffered I/O operations - */ - -#include - -#include "libavutil/common.h" -#include "libavutil/dict.h" -#include "libavutil/log.h" - -#include "libavformat/version.h" - -/** - * Seeking works like for a local file. - */ -#define AVIO_SEEKABLE_NORMAL (1 << 0) - -/** - * Seeking by timestamp with avio_seek_time() is possible. - */ -#define AVIO_SEEKABLE_TIME (1 << 1) - -/** - * Callback for checking whether to abort blocking functions. - * AVERROR_EXIT is returned in this case by the interrupted - * function. During blocking operations, callback is called with - * opaque as parameter. If the callback returns 1, the - * blocking operation will be aborted. - * - * No members can be added to this struct without a major bump, if - * new elements have been added after this struct in AVFormatContext - * or AVIOContext. - */ -typedef struct AVIOInterruptCB { - int (*callback)(void*); - void *opaque; -} AVIOInterruptCB; - -/** - * Directory entry types. - */ -enum AVIODirEntryType { - AVIO_ENTRY_UNKNOWN, - AVIO_ENTRY_BLOCK_DEVICE, - AVIO_ENTRY_CHARACTER_DEVICE, - AVIO_ENTRY_DIRECTORY, - AVIO_ENTRY_NAMED_PIPE, - AVIO_ENTRY_SYMBOLIC_LINK, - AVIO_ENTRY_SOCKET, - AVIO_ENTRY_FILE, - AVIO_ENTRY_SERVER, - AVIO_ENTRY_SHARE, - AVIO_ENTRY_WORKGROUP, -}; - -/** - * Describes single entry of the directory. - * - * Only name and type fields are guaranteed be set. - * Rest of fields are protocol or/and platform dependent and might be unknown. - */ -typedef struct AVIODirEntry { - char *name; /**< Filename */ - int type; /**< Type of the entry */ - int utf8; /**< Set to 1 when name is encoded with UTF-8, 0 otherwise. - Name can be encoded with UTF-8 even though 0 is set. */ - int64_t size; /**< File size in bytes, -1 if unknown. */ - int64_t modification_timestamp; /**< Time of last modification in microseconds since unix - epoch, -1 if unknown. */ - int64_t access_timestamp; /**< Time of last access in microseconds since unix epoch, - -1 if unknown. */ - int64_t status_change_timestamp; /**< Time of last status change in microseconds since unix - epoch, -1 if unknown. */ - int64_t user_id; /**< User ID of owner, -1 if unknown. */ - int64_t group_id; /**< Group ID of owner, -1 if unknown. */ - int64_t filemode; /**< Unix file mode, -1 if unknown. */ -} AVIODirEntry; - -typedef struct AVIODirContext { - struct URLContext *url_context; -} AVIODirContext; - -/** - * Different data types that can be returned via the AVIO - * write_data_type callback. - */ -enum AVIODataMarkerType { - /** - * Header data; this needs to be present for the stream to be decodeable. - */ - AVIO_DATA_MARKER_HEADER, - /** - * A point in the output bytestream where a decoder can start decoding - * (i.e. a keyframe). A demuxer/decoder given the data flagged with - * AVIO_DATA_MARKER_HEADER, followed by any AVIO_DATA_MARKER_SYNC_POINT, - * should give decodeable results. - */ - AVIO_DATA_MARKER_SYNC_POINT, - /** - * A point in the output bytestream where a demuxer can start parsing - * (for non self synchronizing bytestream formats). That is, any - * non-keyframe packet start point. - */ - AVIO_DATA_MARKER_BOUNDARY_POINT, - /** - * This is any, unlabelled data. It can either be a muxer not marking - * any positions at all, it can be an actual boundary/sync point - * that the muxer chooses not to mark, or a later part of a packet/fragment - * that is cut into multiple write callbacks due to limited IO buffer size. - */ - AVIO_DATA_MARKER_UNKNOWN, - /** - * Trailer data, which doesn't contain actual content, but only for - * finalizing the output file. - */ - AVIO_DATA_MARKER_TRAILER, - /** - * A point in the output bytestream where the underlying AVIOContext might - * flush the buffer depending on latency or buffering requirements. Typically - * means the end of a packet. - */ - AVIO_DATA_MARKER_FLUSH_POINT, -}; - -/** - * Bytestream IO Context. - * New fields can be added to the end with minor version bumps. - * Removal, reordering and changes to existing fields require a major - * version bump. - * sizeof(AVIOContext) must not be used outside libav*. - * - * @note None of the function pointers in AVIOContext should be called - * directly, they should only be set by the client application - * when implementing custom I/O. Normally these are set to the - * function pointers specified in avio_alloc_context() - */ -typedef struct AVIOContext { - /** - * A class for private options. - * - * If this AVIOContext is created by avio_open2(), av_class is set and - * passes the options down to protocols. - * - * If this AVIOContext is manually allocated, then av_class may be set by - * the caller. - * - * warning -- this field can be NULL, be sure to not pass this AVIOContext - * to any av_opt_* functions in that case. - */ - const AVClass *av_class; - - /* - * The following shows the relationship between buffer, buf_ptr, - * buf_ptr_max, buf_end, buf_size, and pos, when reading and when writing - * (since AVIOContext is used for both): - * - ********************************************************************************** - * READING - ********************************************************************************** - * - * | buffer_size | - * |---------------------------------------| - * | | - * - * buffer buf_ptr buf_end - * +---------------+-----------------------+ - * |/ / / / / / / /|/ / / / / / /| | - * read buffer: |/ / consumed / | to be read /| | - * |/ / / / / / / /|/ / / / / / /| | - * +---------------+-----------------------+ - * - * pos - * +-------------------------------------------+-----------------+ - * input file: | | | - * +-------------------------------------------+-----------------+ - * - * - ********************************************************************************** - * WRITING - ********************************************************************************** - * - * | buffer_size | - * |--------------------------------------| - * | | - * - * buf_ptr_max - * buffer (buf_ptr) buf_end - * +-----------------------+--------------+ - * |/ / / / / / / / / / / /| | - * write buffer: | / / to be flushed / / | | - * |/ / / / / / / / / / / /| | - * +-----------------------+--------------+ - * buf_ptr can be in this - * due to a backward seek - * - * pos - * +-------------+----------------------------------------------+ - * output file: | | | - * +-------------+----------------------------------------------+ - * - */ - unsigned char *buffer; /**< Start of the buffer. */ - int buffer_size; /**< Maximum buffer size */ - unsigned char *buf_ptr; /**< Current position in the buffer */ - unsigned char *buf_end; /**< End of the data, may be less than - buffer+buffer_size if the read function returned - less data than requested, e.g. for streams where - no more data has been received yet. */ - void *opaque; /**< A private pointer, passed to the read/write/seek/... - functions. */ - int (*read_packet)(void *opaque, uint8_t *buf, int buf_size); - int (*write_packet)(void *opaque, uint8_t *buf, int buf_size); - int64_t (*seek)(void *opaque, int64_t offset, int whence); - int64_t pos; /**< position in the file of the current buffer */ - int eof_reached; /**< true if eof reached */ - int write_flag; /**< true if open for writing */ - int max_packet_size; - unsigned long checksum; - unsigned char *checksum_ptr; - unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size); - int error; /**< contains the error code or 0 if no error happened */ - /** - * Pause or resume playback for network streaming protocols - e.g. MMS. - */ - int (*read_pause)(void *opaque, int pause); - /** - * Seek to a given timestamp in stream with the specified stream_index. - * Needed for some network streaming protocols which don't support seeking - * to byte position. - */ - int64_t (*read_seek)(void *opaque, int stream_index, - int64_t timestamp, int flags); - /** - * A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable. - */ - int seekable; - - /** - * max filesize, used to limit allocations - * This field is internal to libavformat and access from outside is not allowed. - */ - int64_t maxsize; - - /** - * avio_read and avio_write should if possible be satisfied directly - * instead of going through a buffer, and avio_seek will always - * call the underlying seek function directly. - */ - int direct; - - /** - * Bytes read statistic - * This field is internal to libavformat and access from outside is not allowed. - */ - int64_t bytes_read; - - /** - * seek statistic - * This field is internal to libavformat and access from outside is not allowed. - */ - int seek_count; - - /** - * writeout statistic - * This field is internal to libavformat and access from outside is not allowed. - */ - int writeout_count; - - /** - * Original buffer size - * used internally after probing and ensure seekback to reset the buffer size - * This field is internal to libavformat and access from outside is not allowed. - */ - int orig_buffer_size; - - /** - * Threshold to favor readahead over seek. - * This is current internal only, do not use from outside. - */ - int short_seek_threshold; - - /** - * ',' separated list of allowed protocols. - */ - const char *protocol_whitelist; - - /** - * ',' separated list of disallowed protocols. - */ - const char *protocol_blacklist; - - /** - * A callback that is used instead of write_packet. - */ - int (*write_data_type)(void *opaque, uint8_t *buf, int buf_size, - enum AVIODataMarkerType type, int64_t time); - /** - * If set, don't call write_data_type separately for AVIO_DATA_MARKER_BOUNDARY_POINT, - * but ignore them and treat them as AVIO_DATA_MARKER_UNKNOWN (to avoid needlessly - * small chunks of data returned from the callback). - */ - int ignore_boundary_point; - - /** - * Internal, not meant to be used from outside of AVIOContext. - */ - enum AVIODataMarkerType current_type; - int64_t last_time; - - /** - * A callback that is used instead of short_seek_threshold. - * This is current internal only, do not use from outside. - */ - int (*short_seek_get)(void *opaque); - - int64_t written; - - /** - * Maximum reached position before a backward seek in the write buffer, - * used keeping track of already written data for a later flush. - */ - unsigned char *buf_ptr_max; - - /** - * Try to buffer at least this amount of data before flushing it - */ - int min_packet_size; -} AVIOContext; - -/** - * Return the name of the protocol that will handle the passed URL. - * - * NULL is returned if no protocol could be found for the given URL. - * - * @return Name of the protocol or NULL. - */ -const char *avio_find_protocol_name(const char *url); - -/** - * Return AVIO_FLAG_* access flags corresponding to the access permissions - * of the resource in url, or a negative value corresponding to an - * AVERROR code in case of failure. The returned access flags are - * masked by the value in flags. - * - * @note This function is intrinsically unsafe, in the sense that the - * checked resource may change its existence or permission status from - * one call to another. Thus you should not trust the returned value, - * unless you are sure that no other processes are accessing the - * checked resource. - */ -int avio_check(const char *url, int flags); - -/** - * Move or rename a resource. - * - * @note url_src and url_dst should share the same protocol and authority. - * - * @param url_src url to resource to be moved - * @param url_dst new url to resource if the operation succeeded - * @return >=0 on success or negative on error. - */ -int avpriv_io_move(const char *url_src, const char *url_dst); - -/** - * Delete a resource. - * - * @param url resource to be deleted. - * @return >=0 on success or negative on error. - */ -int avpriv_io_delete(const char *url); - -/** - * Open directory for reading. - * - * @param s directory read context. Pointer to a NULL pointer must be passed. - * @param url directory to be listed. - * @param options A dictionary filled with protocol-private options. On return - * this parameter will be destroyed and replaced with a dictionary - * containing options that were not found. May be NULL. - * @return >=0 on success or negative on error. - */ -int avio_open_dir(AVIODirContext **s, const char *url, AVDictionary **options); - -/** - * Get next directory entry. - * - * Returned entry must be freed with avio_free_directory_entry(). In particular - * it may outlive AVIODirContext. - * - * @param s directory read context. - * @param[out] next next entry or NULL when no more entries. - * @return >=0 on success or negative on error. End of list is not considered an - * error. - */ -int avio_read_dir(AVIODirContext *s, AVIODirEntry **next); - -/** - * Close directory. - * - * @note Entries created using avio_read_dir() are not deleted and must be - * freeded with avio_free_directory_entry(). - * - * @param s directory read context. - * @return >=0 on success or negative on error. - */ -int avio_close_dir(AVIODirContext **s); - -/** - * Free entry allocated by avio_read_dir(). - * - * @param entry entry to be freed. - */ -void avio_free_directory_entry(AVIODirEntry **entry); - -/** - * Allocate and initialize an AVIOContext for buffered I/O. It must be later - * freed with avio_context_free(). - * - * @param buffer Memory block for input/output operations via AVIOContext. - * The buffer must be allocated with av_malloc() and friends. - * It may be freed and replaced with a new buffer by libavformat. - * AVIOContext.buffer holds the buffer currently in use, - * which must be later freed with av_free(). - * @param buffer_size The buffer size is very important for performance. - * For protocols with fixed blocksize it should be set to this blocksize. - * For others a typical size is a cache page, e.g. 4kb. - * @param write_flag Set to 1 if the buffer should be writable, 0 otherwise. - * @param opaque An opaque pointer to user-specific data. - * @param read_packet A function for refilling the buffer, may be NULL. - * For stream protocols, must never return 0 but rather - * a proper AVERROR code. - * @param write_packet A function for writing the buffer contents, may be NULL. - * The function may not change the input buffers content. - * @param seek A function for seeking to specified byte position, may be NULL. - * - * @return Allocated AVIOContext or NULL on failure. - */ -AVIOContext *avio_alloc_context( - unsigned char *buffer, - int buffer_size, - int write_flag, - void *opaque, - int (*read_packet)(void *opaque, uint8_t *buf, int buf_size), - int (*write_packet)(void *opaque, uint8_t *buf, int buf_size), - int64_t (*seek)(void *opaque, int64_t offset, int whence)); - -/** - * Free the supplied IO context and everything associated with it. - * - * @param s Double pointer to the IO context. This function will write NULL - * into s. - */ -void avio_context_free(AVIOContext **s); - -void avio_w8(AVIOContext *s, int b); -void avio_write(AVIOContext *s, const unsigned char *buf, int size); -void avio_wl64(AVIOContext *s, uint64_t val); -void avio_wb64(AVIOContext *s, uint64_t val); -void avio_wl32(AVIOContext *s, unsigned int val); -void avio_wb32(AVIOContext *s, unsigned int val); -void avio_wl24(AVIOContext *s, unsigned int val); -void avio_wb24(AVIOContext *s, unsigned int val); -void avio_wl16(AVIOContext *s, unsigned int val); -void avio_wb16(AVIOContext *s, unsigned int val); - -/** - * Write a NULL-terminated string. - * @return number of bytes written. - */ -int avio_put_str(AVIOContext *s, const char *str); - -/** - * Convert an UTF-8 string to UTF-16LE and write it. - * @param s the AVIOContext - * @param str NULL-terminated UTF-8 string - * - * @return number of bytes written. - */ -int avio_put_str16le(AVIOContext *s, const char *str); - -/** - * Convert an UTF-8 string to UTF-16BE and write it. - * @param s the AVIOContext - * @param str NULL-terminated UTF-8 string - * - * @return number of bytes written. - */ -int avio_put_str16be(AVIOContext *s, const char *str); - -/** - * Mark the written bytestream as a specific type. - * - * Zero-length ranges are omitted from the output. - * - * @param time the stream time the current bytestream pos corresponds to - * (in AV_TIME_BASE units), or AV_NOPTS_VALUE if unknown or not - * applicable - * @param type the kind of data written starting at the current pos - */ -void avio_write_marker(AVIOContext *s, int64_t time, enum AVIODataMarkerType type); - -/** - * ORing this as the "whence" parameter to a seek function causes it to - * return the filesize without seeking anywhere. Supporting this is optional. - * If it is not supported then the seek function will return <0. - */ -#define AVSEEK_SIZE 0x10000 - -/** - * Passing this flag as the "whence" parameter to a seek function causes it to - * seek by any means (like reopening and linear reading) or other normally unreasonable - * means that can be extremely slow. - * This may be ignored by the seek code. - */ -#define AVSEEK_FORCE 0x20000 - -/** - * fseek() equivalent for AVIOContext. - * @return new position or AVERROR. - */ -int64_t avio_seek(AVIOContext *s, int64_t offset, int whence); - -/** - * Skip given number of bytes forward - * @return new position or AVERROR. - */ -int64_t avio_skip(AVIOContext *s, int64_t offset); - -/** - * ftell() equivalent for AVIOContext. - * @return position or AVERROR. - */ -static av_always_inline int64_t avio_tell(AVIOContext *s) -{ - return avio_seek(s, 0, SEEK_CUR); -} - -/** - * Get the filesize. - * @return filesize or AVERROR - */ -int64_t avio_size(AVIOContext *s); - -/** - * feof() equivalent for AVIOContext. - * @return non zero if and only if end of file - */ -int avio_feof(AVIOContext *s); - -/** @warning Writes up to 4 KiB per call */ -int avio_printf(AVIOContext *s, const char *fmt, ...) av_printf_format(2, 3); - -/** - * Force flushing of buffered data. - * - * For write streams, force the buffered data to be immediately written to the output, - * without to wait to fill the internal buffer. - * - * For read streams, discard all currently buffered data, and advance the - * reported file position to that of the underlying stream. This does not - * read new data, and does not perform any seeks. - */ -void avio_flush(AVIOContext *s); - -/** - * Read size bytes from AVIOContext into buf. - * @return number of bytes read or AVERROR - */ -int avio_read(AVIOContext *s, unsigned char *buf, int size); - -/** - * Read size bytes from AVIOContext into buf. Unlike avio_read(), this is allowed - * to read fewer bytes than requested. The missing bytes can be read in the next - * call. This always tries to read at least 1 byte. - * Useful to reduce latency in certain cases. - * @return number of bytes read or AVERROR - */ -int avio_read_partial(AVIOContext *s, unsigned char *buf, int size); - -/** - * @name Functions for reading from AVIOContext - * @{ - * - * @note return 0 if EOF, so you cannot use it if EOF handling is - * necessary - */ -int avio_r8 (AVIOContext *s); -unsigned int avio_rl16(AVIOContext *s); -unsigned int avio_rl24(AVIOContext *s); -unsigned int avio_rl32(AVIOContext *s); -uint64_t avio_rl64(AVIOContext *s); -unsigned int avio_rb16(AVIOContext *s); -unsigned int avio_rb24(AVIOContext *s); -unsigned int avio_rb32(AVIOContext *s); -uint64_t avio_rb64(AVIOContext *s); -/** - * @} - */ - -/** - * Read a string from pb into buf. The reading will terminate when either - * a NULL character was encountered, maxlen bytes have been read, or nothing - * more can be read from pb. The result is guaranteed to be NULL-terminated, it - * will be truncated if buf is too small. - * Note that the string is not interpreted or validated in any way, it - * might get truncated in the middle of a sequence for multi-byte encodings. - * - * @return number of bytes read (is always <= maxlen). - * If reading ends on EOF or error, the return value will be one more than - * bytes actually read. - */ -int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen); - -/** - * Read a UTF-16 string from pb and convert it to UTF-8. - * The reading will terminate when either a null or invalid character was - * encountered or maxlen bytes have been read. - * @return number of bytes read (is always <= maxlen) - */ -int avio_get_str16le(AVIOContext *pb, int maxlen, char *buf, int buflen); -int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen); - - -/** - * @name URL open modes - * The flags argument to avio_open must be one of the following - * constants, optionally ORed with other flags. - * @{ - */ -#define AVIO_FLAG_READ 1 /**< read-only */ -#define AVIO_FLAG_WRITE 2 /**< write-only */ -#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE) /**< read-write pseudo flag */ -/** - * @} - */ - -/** - * Use non-blocking mode. - * If this flag is set, operations on the context will return - * AVERROR(EAGAIN) if they can not be performed immediately. - * If this flag is not set, operations on the context will never return - * AVERROR(EAGAIN). - * Note that this flag does not affect the opening/connecting of the - * context. Connecting a protocol will always block if necessary (e.g. on - * network protocols) but never hang (e.g. on busy devices). - * Warning: non-blocking protocols is work-in-progress; this flag may be - * silently ignored. - */ -#define AVIO_FLAG_NONBLOCK 8 - -/** - * Use direct mode. - * avio_read and avio_write should if possible be satisfied directly - * instead of going through a buffer, and avio_seek will always - * call the underlying seek function directly. - */ -#define AVIO_FLAG_DIRECT 0x8000 - -/** - * Create and initialize a AVIOContext for accessing the - * resource indicated by url. - * @note When the resource indicated by url has been opened in - * read+write mode, the AVIOContext can be used only for writing. - * - * @param s Used to return the pointer to the created AVIOContext. - * In case of failure the pointed to value is set to NULL. - * @param url resource to access - * @param flags flags which control how the resource indicated by url - * is to be opened - * @return >= 0 in case of success, a negative value corresponding to an - * AVERROR code in case of failure - */ -int avio_open(AVIOContext **s, const char *url, int flags); - -/** - * Create and initialize a AVIOContext for accessing the - * resource indicated by url. - * @note When the resource indicated by url has been opened in - * read+write mode, the AVIOContext can be used only for writing. - * - * @param s Used to return the pointer to the created AVIOContext. - * In case of failure the pointed to value is set to NULL. - * @param url resource to access - * @param flags flags which control how the resource indicated by url - * is to be opened - * @param int_cb an interrupt callback to be used at the protocols level - * @param options A dictionary filled with protocol-private options. On return - * this parameter will be destroyed and replaced with a dict containing options - * that were not found. May be NULL. - * @return >= 0 in case of success, a negative value corresponding to an - * AVERROR code in case of failure - */ -int avio_open2(AVIOContext **s, const char *url, int flags, - const AVIOInterruptCB *int_cb, AVDictionary **options); - -/** - * Close the resource accessed by the AVIOContext s and free it. - * This function can only be used if s was opened by avio_open(). - * - * The internal buffer is automatically flushed before closing the - * resource. - * - * @return 0 on success, an AVERROR < 0 on error. - * @see avio_closep - */ -int avio_close(AVIOContext *s); - -/** - * Close the resource accessed by the AVIOContext *s, free it - * and set the pointer pointing to it to NULL. - * This function can only be used if s was opened by avio_open(). - * - * The internal buffer is automatically flushed before closing the - * resource. - * - * @return 0 on success, an AVERROR < 0 on error. - * @see avio_close - */ -int avio_closep(AVIOContext **s); - - -/** - * Open a write only memory stream. - * - * @param s new IO context - * @return zero if no error. - */ -int avio_open_dyn_buf(AVIOContext **s); - -/** - * Return the written size and a pointer to the buffer. - * The AVIOContext stream is left intact. - * The buffer must NOT be freed. - * No padding is added to the buffer. - * - * @param s IO context - * @param pbuffer pointer to a byte buffer - * @return the length of the byte buffer - */ -int avio_get_dyn_buf(AVIOContext *s, uint8_t **pbuffer); - -/** - * Return the written size and a pointer to the buffer. The buffer - * must be freed with av_free(). - * Padding of AV_INPUT_BUFFER_PADDING_SIZE is added to the buffer. - * - * @param s IO context - * @param pbuffer pointer to a byte buffer - * @return the length of the byte buffer - */ -int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer); - -/** - * Iterate through names of available protocols. - * - * @param opaque A private pointer representing current protocol. - * It must be a pointer to NULL on first iteration and will - * be updated by successive calls to avio_enum_protocols. - * @param output If set to 1, iterate over output protocols, - * otherwise over input protocols. - * - * @return A static string containing the name of current protocol or NULL - */ -const char *avio_enum_protocols(void **opaque, int output); - -/** - * Pause and resume playing - only meaningful if using a network streaming - * protocol (e.g. MMS). - * - * @param h IO context from which to call the read_pause function pointer - * @param pause 1 for pause, 0 for resume - */ -int avio_pause(AVIOContext *h, int pause); - -/** - * Seek to a given timestamp relative to some component stream. - * Only meaningful if using a network streaming protocol (e.g. MMS.). - * - * @param h IO context from which to call the seek function pointers - * @param stream_index The stream index that the timestamp is relative to. - * If stream_index is (-1) the timestamp should be in AV_TIME_BASE - * units from the beginning of the presentation. - * If a stream_index >= 0 is used and the protocol does not support - * seeking based on component streams, the call will fail. - * @param timestamp timestamp in AVStream.time_base units - * or if there is no stream specified then in AV_TIME_BASE units. - * @param flags Optional combination of AVSEEK_FLAG_BACKWARD, AVSEEK_FLAG_BYTE - * and AVSEEK_FLAG_ANY. The protocol may silently ignore - * AVSEEK_FLAG_BACKWARD and AVSEEK_FLAG_ANY, but AVSEEK_FLAG_BYTE will - * fail if used and not supported. - * @return >= 0 on success - * @see AVInputFormat::read_seek - */ -int64_t avio_seek_time(AVIOContext *h, int stream_index, - int64_t timestamp, int flags); - -/* Avoid a warning. The header can not be included because it breaks c++. */ -struct AVBPrint; - -/** - * Read contents of h into print buffer, up to max_size bytes, or up to EOF. - * - * @return 0 for success (max_size bytes read or EOF reached), negative error - * code otherwise - */ -int avio_read_to_bprint(AVIOContext *h, struct AVBPrint *pb, size_t max_size); - -/** - * Accept and allocate a client context on a server context. - * @param s the server context - * @param c the client context, must be unallocated - * @return >= 0 on success or a negative value corresponding - * to an AVERROR on failure - */ -int avio_accept(AVIOContext *s, AVIOContext **c); - -/** - * Perform one step of the protocol handshake to accept a new client. - * This function must be called on a client returned by avio_accept() before - * using it as a read/write context. - * It is separate from avio_accept() because it may block. - * A step of the handshake is defined by places where the application may - * decide to change the proceedings. - * For example, on a protocol with a request header and a reply header, each - * one can constitute a step because the application may use the parameters - * from the request to change parameters in the reply; or each individual - * chunk of the request can constitute a step. - * If the handshake is already finished, avio_handshake() does nothing and - * returns 0 immediately. - * - * @param c the client context to perform the handshake on - * @return 0 on a complete and successful handshake - * > 0 if the handshake progressed, but is not complete - * < 0 for an AVERROR code - */ -int avio_handshake(AVIOContext *c); -#endif /* AVFORMAT_AVIO_H */ diff --git a/libs/mac/include/libavformat/version.h b/libs/mac/include/libavformat/version.h deleted file mode 100644 index 57b6599e..00000000 --- a/libs/mac/include/libavformat/version.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - * Version macros. - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFORMAT_VERSION_H -#define AVFORMAT_VERSION_H - -/** - * @file - * @ingroup libavf - * Libavformat version macros - */ - -#include "libavutil/version.h" - -// Major bumping may affect Ticket5467, 5421, 5451(compatibility with Chromium) -// Also please add any ticket numbers that you believe might be affected here -#define LIBAVFORMAT_VERSION_MAJOR 58 -#define LIBAVFORMAT_VERSION_MINOR 17 -#define LIBAVFORMAT_VERSION_MICRO 101 - -#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ - LIBAVFORMAT_VERSION_MINOR, \ - LIBAVFORMAT_VERSION_MICRO) -#define LIBAVFORMAT_VERSION AV_VERSION(LIBAVFORMAT_VERSION_MAJOR, \ - LIBAVFORMAT_VERSION_MINOR, \ - LIBAVFORMAT_VERSION_MICRO) -#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT - -#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION) - -/** - * FF_API_* defines may be placed below to indicate public API that will be - * dropped at a future version bump. The defines themselves are not part of - * the public API and may change, break or disappear at any time. - * - * @note, when bumping the major version it is recommended to manually - * disable each FF_API_* in its own commit instead of disabling them all - * at once through the bump. This improves the git bisect-ability of the change. - * - */ -#ifndef FF_API_COMPUTE_PKT_FIELDS2 -#define FF_API_COMPUTE_PKT_FIELDS2 (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_OLD_OPEN_CALLBACKS -#define FF_API_OLD_OPEN_CALLBACKS (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_LAVF_AVCTX -#define FF_API_LAVF_AVCTX (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_HTTP_USER_AGENT -#define FF_API_HTTP_USER_AGENT (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_HLS_WRAP -#define FF_API_HLS_WRAP (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_LAVF_KEEPSIDE_FLAG -#define FF_API_LAVF_KEEPSIDE_FLAG (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_OLD_ROTATE_API -#define FF_API_OLD_ROTATE_API (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_FORMAT_GET_SET -#define FF_API_FORMAT_GET_SET (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_OLD_AVIO_EOF_0 -#define FF_API_OLD_AVIO_EOF_0 (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_LAVF_FFSERVER -#define FF_API_LAVF_FFSERVER (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_FORMAT_FILENAME -#define FF_API_FORMAT_FILENAME (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_OLD_RTSP_OPTIONS -#define FF_API_OLD_RTSP_OPTIONS (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_NEXT -#define FF_API_NEXT (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_DASH_MIN_SEG_DURATION -#define FF_API_DASH_MIN_SEG_DURATION (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_LAVF_MP4A_LATM -#define FF_API_LAVF_MP4A_LATM (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif - - -#ifndef FF_API_R_FRAME_RATE -#define FF_API_R_FRAME_RATE 1 -#endif -#endif /* AVFORMAT_VERSION_H */ diff --git a/libs/mac/include/libpostproc/postprocess.h b/libs/mac/include/libpostproc/postprocess.h deleted file mode 100644 index 348ee7cc..00000000 --- a/libs/mac/include/libpostproc/postprocess.h +++ /dev/null @@ -1,107 +0,0 @@ -/* - * Copyright (C) 2001-2003 Michael Niedermayer (michaelni@gmx.at) - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef POSTPROC_POSTPROCESS_H -#define POSTPROC_POSTPROCESS_H - -/** - * @file - * @ingroup lpp - * external API header - */ - -/** - * @defgroup lpp libpostproc - * Video postprocessing library. - * - * @{ - */ - -#include "libpostproc/version.h" - -/** - * Return the LIBPOSTPROC_VERSION_INT constant. - */ -unsigned postproc_version(void); - -/** - * Return the libpostproc build-time configuration. - */ -const char *postproc_configuration(void); - -/** - * Return the libpostproc license. - */ -const char *postproc_license(void); - -#define PP_QUALITY_MAX 6 - -#include - -typedef void pp_context; -typedef void pp_mode; - -#if LIBPOSTPROC_VERSION_INT < (52<<16) -typedef pp_context pp_context_t; -typedef pp_mode pp_mode_t; -extern const char *const pp_help; ///< a simple help text -#else -extern const char pp_help[]; ///< a simple help text -#endif - -void pp_postprocess(const uint8_t * src[3], const int srcStride[3], - uint8_t * dst[3], const int dstStride[3], - int horizontalSize, int verticalSize, - const int8_t *QP_store, int QP_stride, - pp_mode *mode, pp_context *ppContext, int pict_type); - - -/** - * Return a pp_mode or NULL if an error occurred. - * - * @param name the string after "-pp" on the command line - * @param quality a number from 0 to PP_QUALITY_MAX - */ -pp_mode *pp_get_mode_by_name_and_quality(const char *name, int quality); -void pp_free_mode(pp_mode *mode); - -pp_context *pp_get_context(int width, int height, int flags); -void pp_free_context(pp_context *ppContext); - -#define PP_CPU_CAPS_MMX 0x80000000 -#define PP_CPU_CAPS_MMX2 0x20000000 -#define PP_CPU_CAPS_3DNOW 0x40000000 -#define PP_CPU_CAPS_ALTIVEC 0x10000000 -#define PP_CPU_CAPS_AUTO 0x00080000 - -#define PP_FORMAT 0x00000008 -#define PP_FORMAT_420 (0x00000011|PP_FORMAT) -#define PP_FORMAT_422 (0x00000001|PP_FORMAT) -#define PP_FORMAT_411 (0x00000002|PP_FORMAT) -#define PP_FORMAT_444 (0x00000000|PP_FORMAT) -#define PP_FORMAT_440 (0x00000010|PP_FORMAT) - -#define PP_PICT_TYPE_QP2 0x00000010 ///< MPEG2 style QScale - -/** - * @} - */ - -#endif /* POSTPROC_POSTPROCESS_H */ diff --git a/libs/mac/include/libpostproc/version.h b/libs/mac/include/libpostproc/version.h deleted file mode 100644 index f3725483..00000000 --- a/libs/mac/include/libpostproc/version.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Version macros. - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef POSTPROC_VERSION_H -#define POSTPROC_VERSION_H - -/** - * @file - * Libpostproc version macros - */ - -#include "libavutil/avutil.h" - -#define LIBPOSTPROC_VERSION_MAJOR 55 -#define LIBPOSTPROC_VERSION_MINOR 2 -#define LIBPOSTPROC_VERSION_MICRO 100 - -#define LIBPOSTPROC_VERSION_INT AV_VERSION_INT(LIBPOSTPROC_VERSION_MAJOR, \ - LIBPOSTPROC_VERSION_MINOR, \ - LIBPOSTPROC_VERSION_MICRO) -#define LIBPOSTPROC_VERSION AV_VERSION(LIBPOSTPROC_VERSION_MAJOR, \ - LIBPOSTPROC_VERSION_MINOR, \ - LIBPOSTPROC_VERSION_MICRO) -#define LIBPOSTPROC_BUILD LIBPOSTPROC_VERSION_INT - -#define LIBPOSTPROC_IDENT "postproc" AV_STRINGIFY(LIBPOSTPROC_VERSION) - -#endif /* POSTPROC_VERSION_H */ diff --git a/libs/mac/include/libswresample/swresample.h b/libs/mac/include/libswresample/swresample.h deleted file mode 100644 index c7b84fbc..00000000 --- a/libs/mac/include/libswresample/swresample.h +++ /dev/null @@ -1,579 +0,0 @@ -/* - * Copyright (C) 2011-2013 Michael Niedermayer (michaelni@gmx.at) - * - * This file is part of libswresample - * - * libswresample is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * libswresample is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with libswresample; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef SWRESAMPLE_SWRESAMPLE_H -#define SWRESAMPLE_SWRESAMPLE_H - -/** - * @file - * @ingroup lswr - * libswresample public header - */ - -/** - * @defgroup lswr libswresample - * @{ - * - * Audio resampling, sample format conversion and mixing library. - * - * Interaction with lswr is done through SwrContext, which is - * allocated with swr_alloc() or swr_alloc_set_opts(). It is opaque, so all parameters - * must be set with the @ref avoptions API. - * - * The first thing you will need to do in order to use lswr is to allocate - * SwrContext. This can be done with swr_alloc() or swr_alloc_set_opts(). If you - * are using the former, you must set options through the @ref avoptions API. - * The latter function provides the same feature, but it allows you to set some - * common options in the same statement. - * - * For example the following code will setup conversion from planar float sample - * format to interleaved signed 16-bit integer, downsampling from 48kHz to - * 44.1kHz and downmixing from 5.1 channels to stereo (using the default mixing - * matrix). This is using the swr_alloc() function. - * @code - * SwrContext *swr = swr_alloc(); - * av_opt_set_channel_layout(swr, "in_channel_layout", AV_CH_LAYOUT_5POINT1, 0); - * av_opt_set_channel_layout(swr, "out_channel_layout", AV_CH_LAYOUT_STEREO, 0); - * av_opt_set_int(swr, "in_sample_rate", 48000, 0); - * av_opt_set_int(swr, "out_sample_rate", 44100, 0); - * av_opt_set_sample_fmt(swr, "in_sample_fmt", AV_SAMPLE_FMT_FLTP, 0); - * av_opt_set_sample_fmt(swr, "out_sample_fmt", AV_SAMPLE_FMT_S16, 0); - * @endcode - * - * The same job can be done using swr_alloc_set_opts() as well: - * @code - * SwrContext *swr = swr_alloc_set_opts(NULL, // we're allocating a new context - * AV_CH_LAYOUT_STEREO, // out_ch_layout - * AV_SAMPLE_FMT_S16, // out_sample_fmt - * 44100, // out_sample_rate - * AV_CH_LAYOUT_5POINT1, // in_ch_layout - * AV_SAMPLE_FMT_FLTP, // in_sample_fmt - * 48000, // in_sample_rate - * 0, // log_offset - * NULL); // log_ctx - * @endcode - * - * Once all values have been set, it must be initialized with swr_init(). If - * you need to change the conversion parameters, you can change the parameters - * using @ref AVOptions, as described above in the first example; or by using - * swr_alloc_set_opts(), but with the first argument the allocated context. - * You must then call swr_init() again. - * - * The conversion itself is done by repeatedly calling swr_convert(). - * Note that the samples may get buffered in swr if you provide insufficient - * output space or if sample rate conversion is done, which requires "future" - * samples. Samples that do not require future input can be retrieved at any - * time by using swr_convert() (in_count can be set to 0). - * At the end of conversion the resampling buffer can be flushed by calling - * swr_convert() with NULL in and 0 in_count. - * - * The samples used in the conversion process can be managed with the libavutil - * @ref lavu_sampmanip "samples manipulation" API, including av_samples_alloc() - * function used in the following example. - * - * The delay between input and output, can at any time be found by using - * swr_get_delay(). - * - * The following code demonstrates the conversion loop assuming the parameters - * from above and caller-defined functions get_input() and handle_output(): - * @code - * uint8_t **input; - * int in_samples; - * - * while (get_input(&input, &in_samples)) { - * uint8_t *output; - * int out_samples = av_rescale_rnd(swr_get_delay(swr, 48000) + - * in_samples, 44100, 48000, AV_ROUND_UP); - * av_samples_alloc(&output, NULL, 2, out_samples, - * AV_SAMPLE_FMT_S16, 0); - * out_samples = swr_convert(swr, &output, out_samples, - * input, in_samples); - * handle_output(output, out_samples); - * av_freep(&output); - * } - * @endcode - * - * When the conversion is finished, the conversion - * context and everything associated with it must be freed with swr_free(). - * A swr_close() function is also available, but it exists mainly for - * compatibility with libavresample, and is not required to be called. - * - * There will be no memory leak if the data is not completely flushed before - * swr_free(). - */ - -#include -#include "libavutil/channel_layout.h" -#include "libavutil/frame.h" -#include "libavutil/samplefmt.h" - -#include "libswresample/version.h" - -/** - * @name Option constants - * These constants are used for the @ref avoptions interface for lswr. - * @{ - * - */ - -#define SWR_FLAG_RESAMPLE 1 ///< Force resampling even if equal sample rate -//TODO use int resample ? -//long term TODO can we enable this dynamically? - -/** Dithering algorithms */ -enum SwrDitherType { - SWR_DITHER_NONE = 0, - SWR_DITHER_RECTANGULAR, - SWR_DITHER_TRIANGULAR, - SWR_DITHER_TRIANGULAR_HIGHPASS, - - SWR_DITHER_NS = 64, ///< not part of API/ABI - SWR_DITHER_NS_LIPSHITZ, - SWR_DITHER_NS_F_WEIGHTED, - SWR_DITHER_NS_MODIFIED_E_WEIGHTED, - SWR_DITHER_NS_IMPROVED_E_WEIGHTED, - SWR_DITHER_NS_SHIBATA, - SWR_DITHER_NS_LOW_SHIBATA, - SWR_DITHER_NS_HIGH_SHIBATA, - SWR_DITHER_NB, ///< not part of API/ABI -}; - -/** Resampling Engines */ -enum SwrEngine { - SWR_ENGINE_SWR, /**< SW Resampler */ - SWR_ENGINE_SOXR, /**< SoX Resampler */ - SWR_ENGINE_NB, ///< not part of API/ABI -}; - -/** Resampling Filter Types */ -enum SwrFilterType { - SWR_FILTER_TYPE_CUBIC, /**< Cubic */ - SWR_FILTER_TYPE_BLACKMAN_NUTTALL, /**< Blackman Nuttall windowed sinc */ - SWR_FILTER_TYPE_KAISER, /**< Kaiser windowed sinc */ -}; - -/** - * @} - */ - -/** - * The libswresample context. Unlike libavcodec and libavformat, this structure - * is opaque. This means that if you would like to set options, you must use - * the @ref avoptions API and cannot directly set values to members of the - * structure. - */ -typedef struct SwrContext SwrContext; - -/** - * Get the AVClass for SwrContext. It can be used in combination with - * AV_OPT_SEARCH_FAKE_OBJ for examining options. - * - * @see av_opt_find(). - * @return the AVClass of SwrContext - */ -const AVClass *swr_get_class(void); - -/** - * @name SwrContext constructor functions - * @{ - */ - -/** - * Allocate SwrContext. - * - * If you use this function you will need to set the parameters (manually or - * with swr_alloc_set_opts()) before calling swr_init(). - * - * @see swr_alloc_set_opts(), swr_init(), swr_free() - * @return NULL on error, allocated context otherwise - */ -struct SwrContext *swr_alloc(void); - -/** - * Initialize context after user parameters have been set. - * @note The context must be configured using the AVOption API. - * - * @see av_opt_set_int() - * @see av_opt_set_dict() - * - * @param[in,out] s Swr context to initialize - * @return AVERROR error code in case of failure. - */ -int swr_init(struct SwrContext *s); - -/** - * Check whether an swr context has been initialized or not. - * - * @param[in] s Swr context to check - * @see swr_init() - * @return positive if it has been initialized, 0 if not initialized - */ -int swr_is_initialized(struct SwrContext *s); - -/** - * Allocate SwrContext if needed and set/reset common parameters. - * - * This function does not require s to be allocated with swr_alloc(). On the - * other hand, swr_alloc() can use swr_alloc_set_opts() to set the parameters - * on the allocated context. - * - * @param s existing Swr context if available, or NULL if not - * @param out_ch_layout output channel layout (AV_CH_LAYOUT_*) - * @param out_sample_fmt output sample format (AV_SAMPLE_FMT_*). - * @param out_sample_rate output sample rate (frequency in Hz) - * @param in_ch_layout input channel layout (AV_CH_LAYOUT_*) - * @param in_sample_fmt input sample format (AV_SAMPLE_FMT_*). - * @param in_sample_rate input sample rate (frequency in Hz) - * @param log_offset logging level offset - * @param log_ctx parent logging context, can be NULL - * - * @see swr_init(), swr_free() - * @return NULL on error, allocated context otherwise - */ -struct SwrContext *swr_alloc_set_opts(struct SwrContext *s, - int64_t out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate, - int64_t in_ch_layout, enum AVSampleFormat in_sample_fmt, int in_sample_rate, - int log_offset, void *log_ctx); - -/** - * @} - * - * @name SwrContext destructor functions - * @{ - */ - -/** - * Free the given SwrContext and set the pointer to NULL. - * - * @param[in] s a pointer to a pointer to Swr context - */ -void swr_free(struct SwrContext **s); - -/** - * Closes the context so that swr_is_initialized() returns 0. - * - * The context can be brought back to life by running swr_init(), - * swr_init() can also be used without swr_close(). - * This function is mainly provided for simplifying the usecase - * where one tries to support libavresample and libswresample. - * - * @param[in,out] s Swr context to be closed - */ -void swr_close(struct SwrContext *s); - -/** - * @} - * - * @name Core conversion functions - * @{ - */ - -/** Convert audio. - * - * in and in_count can be set to 0 to flush the last few samples out at the - * end. - * - * If more input is provided than output space, then the input will be buffered. - * You can avoid this buffering by using swr_get_out_samples() to retrieve an - * upper bound on the required number of output samples for the given number of - * input samples. Conversion will run directly without copying whenever possible. - * - * @param s allocated Swr context, with parameters set - * @param out output buffers, only the first one need be set in case of packed audio - * @param out_count amount of space available for output in samples per channel - * @param in input buffers, only the first one need to be set in case of packed audio - * @param in_count number of input samples available in one channel - * - * @return number of samples output per channel, negative value on error - */ -int swr_convert(struct SwrContext *s, uint8_t **out, int out_count, - const uint8_t **in , int in_count); - -/** - * Convert the next timestamp from input to output - * timestamps are in 1/(in_sample_rate * out_sample_rate) units. - * - * @note There are 2 slightly differently behaving modes. - * @li When automatic timestamp compensation is not used, (min_compensation >= FLT_MAX) - * in this case timestamps will be passed through with delays compensated - * @li When automatic timestamp compensation is used, (min_compensation < FLT_MAX) - * in this case the output timestamps will match output sample numbers. - * See ffmpeg-resampler(1) for the two modes of compensation. - * - * @param s[in] initialized Swr context - * @param pts[in] timestamp for the next input sample, INT64_MIN if unknown - * @see swr_set_compensation(), swr_drop_output(), and swr_inject_silence() are - * function used internally for timestamp compensation. - * @return the output timestamp for the next output sample - */ -int64_t swr_next_pts(struct SwrContext *s, int64_t pts); - -/** - * @} - * - * @name Low-level option setting functions - * These functons provide a means to set low-level options that is not possible - * with the AVOption API. - * @{ - */ - -/** - * Activate resampling compensation ("soft" compensation). This function is - * internally called when needed in swr_next_pts(). - * - * @param[in,out] s allocated Swr context. If it is not initialized, - * or SWR_FLAG_RESAMPLE is not set, swr_init() is - * called with the flag set. - * @param[in] sample_delta delta in PTS per sample - * @param[in] compensation_distance number of samples to compensate for - * @return >= 0 on success, AVERROR error codes if: - * @li @c s is NULL, - * @li @c compensation_distance is less than 0, - * @li @c compensation_distance is 0 but sample_delta is not, - * @li compensation unsupported by resampler, or - * @li swr_init() fails when called. - */ -int swr_set_compensation(struct SwrContext *s, int sample_delta, int compensation_distance); - -/** - * Set a customized input channel mapping. - * - * @param[in,out] s allocated Swr context, not yet initialized - * @param[in] channel_map customized input channel mapping (array of channel - * indexes, -1 for a muted channel) - * @return >= 0 on success, or AVERROR error code in case of failure. - */ -int swr_set_channel_mapping(struct SwrContext *s, const int *channel_map); - -/** - * Generate a channel mixing matrix. - * - * This function is the one used internally by libswresample for building the - * default mixing matrix. It is made public just as a utility function for - * building custom matrices. - * - * @param in_layout input channel layout - * @param out_layout output channel layout - * @param center_mix_level mix level for the center channel - * @param surround_mix_level mix level for the surround channel(s) - * @param lfe_mix_level mix level for the low-frequency effects channel - * @param rematrix_maxval if 1.0, coefficients will be normalized to prevent - * overflow. if INT_MAX, coefficients will not be - * normalized. - * @param[out] matrix mixing coefficients; matrix[i + stride * o] is - * the weight of input channel i in output channel o. - * @param stride distance between adjacent input channels in the - * matrix array - * @param matrix_encoding matrixed stereo downmix mode (e.g. dplii) - * @param log_ctx parent logging context, can be NULL - * @return 0 on success, negative AVERROR code on failure - */ -int swr_build_matrix(uint64_t in_layout, uint64_t out_layout, - double center_mix_level, double surround_mix_level, - double lfe_mix_level, double rematrix_maxval, - double rematrix_volume, double *matrix, - int stride, enum AVMatrixEncoding matrix_encoding, - void *log_ctx); - -/** - * Set a customized remix matrix. - * - * @param s allocated Swr context, not yet initialized - * @param matrix remix coefficients; matrix[i + stride * o] is - * the weight of input channel i in output channel o - * @param stride offset between lines of the matrix - * @return >= 0 on success, or AVERROR error code in case of failure. - */ -int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride); - -/** - * @} - * - * @name Sample handling functions - * @{ - */ - -/** - * Drops the specified number of output samples. - * - * This function, along with swr_inject_silence(), is called by swr_next_pts() - * if needed for "hard" compensation. - * - * @param s allocated Swr context - * @param count number of samples to be dropped - * - * @return >= 0 on success, or a negative AVERROR code on failure - */ -int swr_drop_output(struct SwrContext *s, int count); - -/** - * Injects the specified number of silence samples. - * - * This function, along with swr_drop_output(), is called by swr_next_pts() - * if needed for "hard" compensation. - * - * @param s allocated Swr context - * @param count number of samples to be dropped - * - * @return >= 0 on success, or a negative AVERROR code on failure - */ -int swr_inject_silence(struct SwrContext *s, int count); - -/** - * Gets the delay the next input sample will experience relative to the next output sample. - * - * Swresample can buffer data if more input has been provided than available - * output space, also converting between sample rates needs a delay. - * This function returns the sum of all such delays. - * The exact delay is not necessarily an integer value in either input or - * output sample rate. Especially when downsampling by a large value, the - * output sample rate may be a poor choice to represent the delay, similarly - * for upsampling and the input sample rate. - * - * @param s swr context - * @param base timebase in which the returned delay will be: - * @li if it's set to 1 the returned delay is in seconds - * @li if it's set to 1000 the returned delay is in milliseconds - * @li if it's set to the input sample rate then the returned - * delay is in input samples - * @li if it's set to the output sample rate then the returned - * delay is in output samples - * @li if it's the least common multiple of in_sample_rate and - * out_sample_rate then an exact rounding-free delay will be - * returned - * @returns the delay in 1 / @c base units. - */ -int64_t swr_get_delay(struct SwrContext *s, int64_t base); - -/** - * Find an upper bound on the number of samples that the next swr_convert - * call will output, if called with in_samples of input samples. This - * depends on the internal state, and anything changing the internal state - * (like further swr_convert() calls) will may change the number of samples - * swr_get_out_samples() returns for the same number of input samples. - * - * @param in_samples number of input samples. - * @note any call to swr_inject_silence(), swr_convert(), swr_next_pts() - * or swr_set_compensation() invalidates this limit - * @note it is recommended to pass the correct available buffer size - * to all functions like swr_convert() even if swr_get_out_samples() - * indicates that less would be used. - * @returns an upper bound on the number of samples that the next swr_convert - * will output or a negative value to indicate an error - */ -int swr_get_out_samples(struct SwrContext *s, int in_samples); - -/** - * @} - * - * @name Configuration accessors - * @{ - */ - -/** - * Return the @ref LIBSWRESAMPLE_VERSION_INT constant. - * - * This is useful to check if the build-time libswresample has the same version - * as the run-time one. - * - * @returns the unsigned int-typed version - */ -unsigned swresample_version(void); - -/** - * Return the swr build-time configuration. - * - * @returns the build-time @c ./configure flags - */ -const char *swresample_configuration(void); - -/** - * Return the swr license. - * - * @returns the license of libswresample, determined at build-time - */ -const char *swresample_license(void); - -/** - * @} - * - * @name AVFrame based API - * @{ - */ - -/** - * Convert the samples in the input AVFrame and write them to the output AVFrame. - * - * Input and output AVFrames must have channel_layout, sample_rate and format set. - * - * If the output AVFrame does not have the data pointers allocated the nb_samples - * field will be set using av_frame_get_buffer() - * is called to allocate the frame. - * - * The output AVFrame can be NULL or have fewer allocated samples than required. - * In this case, any remaining samples not written to the output will be added - * to an internal FIFO buffer, to be returned at the next call to this function - * or to swr_convert(). - * - * If converting sample rate, there may be data remaining in the internal - * resampling delay buffer. swr_get_delay() tells the number of - * remaining samples. To get this data as output, call this function or - * swr_convert() with NULL input. - * - * If the SwrContext configuration does not match the output and - * input AVFrame settings the conversion does not take place and depending on - * which AVFrame is not matching AVERROR_OUTPUT_CHANGED, AVERROR_INPUT_CHANGED - * or the result of a bitwise-OR of them is returned. - * - * @see swr_delay() - * @see swr_convert() - * @see swr_get_delay() - * - * @param swr audio resample context - * @param output output AVFrame - * @param input input AVFrame - * @return 0 on success, AVERROR on failure or nonmatching - * configuration. - */ -int swr_convert_frame(SwrContext *swr, - AVFrame *output, const AVFrame *input); - -/** - * Configure or reconfigure the SwrContext using the information - * provided by the AVFrames. - * - * The original resampling context is reset even on failure. - * The function calls swr_close() internally if the context is open. - * - * @see swr_close(); - * - * @param swr audio resample context - * @param output output AVFrame - * @param input input AVFrame - * @return 0 on success, AVERROR on failure. - */ -int swr_config_frame(SwrContext *swr, const AVFrame *out, const AVFrame *in); - -/** - * @} - * @} - */ - -#endif /* SWRESAMPLE_SWRESAMPLE_H */ diff --git a/libs/mac/include/libswresample/version.h b/libs/mac/include/libswresample/version.h deleted file mode 100644 index b8b5bee9..00000000 --- a/libs/mac/include/libswresample/version.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Version macros. - * - * This file is part of libswresample - * - * libswresample is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * libswresample is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with libswresample; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef SWRESAMPLE_VERSION_H -#define SWRESAMPLE_VERSION_H - -/** - * @file - * Libswresample version macros - */ - -#include "libavutil/avutil.h" - -#define LIBSWRESAMPLE_VERSION_MAJOR 3 -#define LIBSWRESAMPLE_VERSION_MINOR 2 -#define LIBSWRESAMPLE_VERSION_MICRO 100 - -#define LIBSWRESAMPLE_VERSION_INT AV_VERSION_INT(LIBSWRESAMPLE_VERSION_MAJOR, \ - LIBSWRESAMPLE_VERSION_MINOR, \ - LIBSWRESAMPLE_VERSION_MICRO) -#define LIBSWRESAMPLE_VERSION AV_VERSION(LIBSWRESAMPLE_VERSION_MAJOR, \ - LIBSWRESAMPLE_VERSION_MINOR, \ - LIBSWRESAMPLE_VERSION_MICRO) -#define LIBSWRESAMPLE_BUILD LIBSWRESAMPLE_VERSION_INT - -#define LIBSWRESAMPLE_IDENT "SwR" AV_STRINGIFY(LIBSWRESAMPLE_VERSION) - -#endif /* SWRESAMPLE_VERSION_H */ diff --git a/libs/mac/include/libswscale/swscale.h b/libs/mac/include/libswscale/swscale.h deleted file mode 100644 index 7713f51e..00000000 --- a/libs/mac/include/libswscale/swscale.h +++ /dev/null @@ -1,336 +0,0 @@ -/* - * Copyright (C) 2001-2011 Michael Niedermayer - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef SWSCALE_SWSCALE_H -#define SWSCALE_SWSCALE_H - -/** - * @file - * @ingroup libsws - * external API header - */ - -#include - -#include "libavutil/avutil.h" -#include "libavutil/log.h" -#include "libavutil/pixfmt.h" -#include "version.h" - -/** - * @defgroup libsws libswscale - * Color conversion and scaling library. - * - * @{ - * - * Return the LIBSWSCALE_VERSION_INT constant. - */ -unsigned swscale_version(void); - -/** - * Return the libswscale build-time configuration. - */ -const char *swscale_configuration(void); - -/** - * Return the libswscale license. - */ -const char *swscale_license(void); - -/* values for the flags, the stuff on the command line is different */ -#define SWS_FAST_BILINEAR 1 -#define SWS_BILINEAR 2 -#define SWS_BICUBIC 4 -#define SWS_X 8 -#define SWS_POINT 0x10 -#define SWS_AREA 0x20 -#define SWS_BICUBLIN 0x40 -#define SWS_GAUSS 0x80 -#define SWS_SINC 0x100 -#define SWS_LANCZOS 0x200 -#define SWS_SPLINE 0x400 - -#define SWS_SRC_V_CHR_DROP_MASK 0x30000 -#define SWS_SRC_V_CHR_DROP_SHIFT 16 - -#define SWS_PARAM_DEFAULT 123456 - -#define SWS_PRINT_INFO 0x1000 - -//the following 3 flags are not completely implemented -//internal chrominance subsampling info -#define SWS_FULL_CHR_H_INT 0x2000 -//input subsampling info -#define SWS_FULL_CHR_H_INP 0x4000 -#define SWS_DIRECT_BGR 0x8000 -#define SWS_ACCURATE_RND 0x40000 -#define SWS_BITEXACT 0x80000 -#define SWS_ERROR_DIFFUSION 0x800000 - -#define SWS_MAX_REDUCE_CUTOFF 0.002 - -#define SWS_CS_ITU709 1 -#define SWS_CS_FCC 4 -#define SWS_CS_ITU601 5 -#define SWS_CS_ITU624 5 -#define SWS_CS_SMPTE170M 5 -#define SWS_CS_SMPTE240M 7 -#define SWS_CS_DEFAULT 5 -#define SWS_CS_BT2020 9 - -/** - * Return a pointer to yuv<->rgb coefficients for the given colorspace - * suitable for sws_setColorspaceDetails(). - * - * @param colorspace One of the SWS_CS_* macros. If invalid, - * SWS_CS_DEFAULT is used. - */ -const int *sws_getCoefficients(int colorspace); - -// when used for filters they must have an odd number of elements -// coeffs cannot be shared between vectors -typedef struct SwsVector { - double *coeff; ///< pointer to the list of coefficients - int length; ///< number of coefficients in the vector -} SwsVector; - -// vectors can be shared -typedef struct SwsFilter { - SwsVector *lumH; - SwsVector *lumV; - SwsVector *chrH; - SwsVector *chrV; -} SwsFilter; - -struct SwsContext; - -/** - * Return a positive value if pix_fmt is a supported input format, 0 - * otherwise. - */ -int sws_isSupportedInput(enum AVPixelFormat pix_fmt); - -/** - * Return a positive value if pix_fmt is a supported output format, 0 - * otherwise. - */ -int sws_isSupportedOutput(enum AVPixelFormat pix_fmt); - -/** - * @param[in] pix_fmt the pixel format - * @return a positive value if an endianness conversion for pix_fmt is - * supported, 0 otherwise. - */ -int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt); - -/** - * Allocate an empty SwsContext. This must be filled and passed to - * sws_init_context(). For filling see AVOptions, options.c and - * sws_setColorspaceDetails(). - */ -struct SwsContext *sws_alloc_context(void); - -/** - * Initialize the swscaler context sws_context. - * - * @return zero or positive value on success, a negative value on - * error - */ -av_warn_unused_result -int sws_init_context(struct SwsContext *sws_context, SwsFilter *srcFilter, SwsFilter *dstFilter); - -/** - * Free the swscaler context swsContext. - * If swsContext is NULL, then does nothing. - */ -void sws_freeContext(struct SwsContext *swsContext); - -/** - * Allocate and return an SwsContext. You need it to perform - * scaling/conversion operations using sws_scale(). - * - * @param srcW the width of the source image - * @param srcH the height of the source image - * @param srcFormat the source image format - * @param dstW the width of the destination image - * @param dstH the height of the destination image - * @param dstFormat the destination image format - * @param flags specify which algorithm and options to use for rescaling - * @param param extra parameters to tune the used scaler - * For SWS_BICUBIC param[0] and [1] tune the shape of the basis - * function, param[0] tunes f(1) and param[1] f´(1) - * For SWS_GAUSS param[0] tunes the exponent and thus cutoff - * frequency - * For SWS_LANCZOS param[0] tunes the width of the window function - * @return a pointer to an allocated context, or NULL in case of error - * @note this function is to be removed after a saner alternative is - * written - */ -struct SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat, - int dstW, int dstH, enum AVPixelFormat dstFormat, - int flags, SwsFilter *srcFilter, - SwsFilter *dstFilter, const double *param); - -/** - * Scale the image slice in srcSlice and put the resulting scaled - * slice in the image in dst. A slice is a sequence of consecutive - * rows in an image. - * - * Slices have to be provided in sequential order, either in - * top-bottom or bottom-top order. If slices are provided in - * non-sequential order the behavior of the function is undefined. - * - * @param c the scaling context previously created with - * sws_getContext() - * @param srcSlice the array containing the pointers to the planes of - * the source slice - * @param srcStride the array containing the strides for each plane of - * the source image - * @param srcSliceY the position in the source image of the slice to - * process, that is the number (counted starting from - * zero) in the image of the first row of the slice - * @param srcSliceH the height of the source slice, that is the number - * of rows in the slice - * @param dst the array containing the pointers to the planes of - * the destination image - * @param dstStride the array containing the strides for each plane of - * the destination image - * @return the height of the output slice - */ -int sws_scale(struct SwsContext *c, const uint8_t *const srcSlice[], - const int srcStride[], int srcSliceY, int srcSliceH, - uint8_t *const dst[], const int dstStride[]); - -/** - * @param dstRange flag indicating the while-black range of the output (1=jpeg / 0=mpeg) - * @param srcRange flag indicating the while-black range of the input (1=jpeg / 0=mpeg) - * @param table the yuv2rgb coefficients describing the output yuv space, normally ff_yuv2rgb_coeffs[x] - * @param inv_table the yuv2rgb coefficients describing the input yuv space, normally ff_yuv2rgb_coeffs[x] - * @param brightness 16.16 fixed point brightness correction - * @param contrast 16.16 fixed point contrast correction - * @param saturation 16.16 fixed point saturation correction - * @return -1 if not supported - */ -int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4], - int srcRange, const int table[4], int dstRange, - int brightness, int contrast, int saturation); - -/** - * @return -1 if not supported - */ -int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table, - int *srcRange, int **table, int *dstRange, - int *brightness, int *contrast, int *saturation); - -/** - * Allocate and return an uninitialized vector with length coefficients. - */ -SwsVector *sws_allocVec(int length); - -/** - * Return a normalized Gaussian curve used to filter stuff - * quality = 3 is high quality, lower is lower quality. - */ -SwsVector *sws_getGaussianVec(double variance, double quality); - -/** - * Scale all the coefficients of a by the scalar value. - */ -void sws_scaleVec(SwsVector *a, double scalar); - -/** - * Scale all the coefficients of a so that their sum equals height. - */ -void sws_normalizeVec(SwsVector *a, double height); - -#if FF_API_SWS_VECTOR -attribute_deprecated SwsVector *sws_getConstVec(double c, int length); -attribute_deprecated SwsVector *sws_getIdentityVec(void); -attribute_deprecated void sws_convVec(SwsVector *a, SwsVector *b); -attribute_deprecated void sws_addVec(SwsVector *a, SwsVector *b); -attribute_deprecated void sws_subVec(SwsVector *a, SwsVector *b); -attribute_deprecated void sws_shiftVec(SwsVector *a, int shift); -attribute_deprecated SwsVector *sws_cloneVec(SwsVector *a); -attribute_deprecated void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level); -#endif - -void sws_freeVec(SwsVector *a); - -SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, - float lumaSharpen, float chromaSharpen, - float chromaHShift, float chromaVShift, - int verbose); -void sws_freeFilter(SwsFilter *filter); - -/** - * Check if context can be reused, otherwise reallocate a new one. - * - * If context is NULL, just calls sws_getContext() to get a new - * context. Otherwise, checks if the parameters are the ones already - * saved in context. If that is the case, returns the current - * context. Otherwise, frees context and gets a new context with - * the new parameters. - * - * Be warned that srcFilter and dstFilter are not checked, they - * are assumed to remain the same. - */ -struct SwsContext *sws_getCachedContext(struct SwsContext *context, - int srcW, int srcH, enum AVPixelFormat srcFormat, - int dstW, int dstH, enum AVPixelFormat dstFormat, - int flags, SwsFilter *srcFilter, - SwsFilter *dstFilter, const double *param); - -/** - * Convert an 8-bit paletted frame into a frame with a color depth of 32 bits. - * - * The output frame will have the same packed format as the palette. - * - * @param src source frame buffer - * @param dst destination frame buffer - * @param num_pixels number of pixels to convert - * @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src - */ -void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette); - -/** - * Convert an 8-bit paletted frame into a frame with a color depth of 24 bits. - * - * With the palette format "ABCD", the destination frame ends up with the format "ABC". - * - * @param src source frame buffer - * @param dst destination frame buffer - * @param num_pixels number of pixels to convert - * @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src - */ -void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette); - -/** - * Get the AVClass for swsContext. It can be used in combination with - * AV_OPT_SEARCH_FAKE_OBJ for examining options. - * - * @see av_opt_find(). - */ -const AVClass *sws_get_class(void); - -/** - * @} - */ - -#endif /* SWSCALE_SWSCALE_H */ diff --git a/libs/mac/include/libswscale/version.h b/libs/mac/include/libswscale/version.h deleted file mode 100644 index a07bd717..00000000 --- a/libs/mac/include/libswscale/version.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef SWSCALE_VERSION_H -#define SWSCALE_VERSION_H - -/** - * @file - * swscale version macros - */ - -#include "libavutil/version.h" - -#define LIBSWSCALE_VERSION_MAJOR 5 -#define LIBSWSCALE_VERSION_MINOR 2 -#define LIBSWSCALE_VERSION_MICRO 100 - -#define LIBSWSCALE_VERSION_INT AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \ - LIBSWSCALE_VERSION_MINOR, \ - LIBSWSCALE_VERSION_MICRO) -#define LIBSWSCALE_VERSION AV_VERSION(LIBSWSCALE_VERSION_MAJOR, \ - LIBSWSCALE_VERSION_MINOR, \ - LIBSWSCALE_VERSION_MICRO) -#define LIBSWSCALE_BUILD LIBSWSCALE_VERSION_INT - -#define LIBSWSCALE_IDENT "SwS" AV_STRINGIFY(LIBSWSCALE_VERSION) - -/** - * FF_API_* defines may be placed below to indicate public API that will be - * dropped at a future version bump. The defines themselves are not part of - * the public API and may change, break or disappear at any time. - */ - -#ifndef FF_API_SWS_VECTOR -#define FF_API_SWS_VECTOR (LIBSWSCALE_VERSION_MAJOR < 6) -#endif - -#endif /* SWSCALE_VERSION_H */ diff --git a/libs/mac/lib/libavdevice.58.dylib b/libs/mac/lib/libavdevice.58.dylib deleted file mode 100755 index c3648284..00000000 Binary files a/libs/mac/lib/libavdevice.58.dylib and /dev/null differ diff --git a/libs/mac/lib/libavfilter.7.dylib b/libs/mac/lib/libavfilter.7.dylib deleted file mode 100755 index 80f8cc1a..00000000 Binary files a/libs/mac/lib/libavfilter.7.dylib and /dev/null differ diff --git a/libs/mac/lib/libavformat.58.dylib b/libs/mac/lib/libavformat.58.dylib deleted file mode 100755 index 4f4e3795..00000000 Binary files a/libs/mac/lib/libavformat.58.dylib and /dev/null differ diff --git a/libs/mac/lib/libpostproc.55.dylib b/libs/mac/lib/libpostproc.55.dylib deleted file mode 100755 index e0cbe7ae..00000000 Binary files a/libs/mac/lib/libpostproc.55.dylib and /dev/null differ diff --git a/libs/mac/lib/libswscale.5.dylib b/libs/mac/lib/libswscale.5.dylib deleted file mode 100755 index 2d7e3726..00000000 Binary files a/libs/mac/lib/libswscale.5.dylib and /dev/null differ diff --git a/libs/windows/include/libavdevice/avdevice.h b/libs/windows/include/libavdevice/avdevice.h deleted file mode 100644 index ee946248..00000000 --- a/libs/windows/include/libavdevice/avdevice.h +++ /dev/null @@ -1,514 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVDEVICE_AVDEVICE_H -#define AVDEVICE_AVDEVICE_H - -#include "version.h" - -/** - * @file - * @ingroup lavd - * Main libavdevice API header - */ - -/** - * @defgroup lavd libavdevice - * Special devices muxing/demuxing library. - * - * Libavdevice is a complementary library to @ref libavf "libavformat". It - * provides various "special" platform-specific muxers and demuxers, e.g. for - * grabbing devices, audio capture and playback etc. As a consequence, the - * (de)muxers in libavdevice are of the AVFMT_NOFILE type (they use their own - * I/O functions). The filename passed to avformat_open_input() often does not - * refer to an actually existing file, but has some special device-specific - * meaning - e.g. for xcbgrab it is the display name. - * - * To use libavdevice, simply call avdevice_register_all() to register all - * compiled muxers and demuxers. They all use standard libavformat API. - * - * @{ - */ - -#include "libavutil/log.h" -#include "libavutil/opt.h" -#include "libavutil/dict.h" -#include "libavformat/avformat.h" - -/** - * Return the LIBAVDEVICE_VERSION_INT constant. - */ -unsigned avdevice_version(void); - -/** - * Return the libavdevice build-time configuration. - */ -const char *avdevice_configuration(void); - -/** - * Return the libavdevice license. - */ -const char *avdevice_license(void); - -/** - * Initialize libavdevice and register all the input and output devices. - */ -void avdevice_register_all(void); - -/** - * Audio input devices iterator. - * - * If d is NULL, returns the first registered input audio/video device, - * if d is non-NULL, returns the next registered input audio/video device after d - * or NULL if d is the last one. - */ -AVInputFormat *av_input_audio_device_next(AVInputFormat *d); - -/** - * Video input devices iterator. - * - * If d is NULL, returns the first registered input audio/video device, - * if d is non-NULL, returns the next registered input audio/video device after d - * or NULL if d is the last one. - */ -AVInputFormat *av_input_video_device_next(AVInputFormat *d); - -/** - * Audio output devices iterator. - * - * If d is NULL, returns the first registered output audio/video device, - * if d is non-NULL, returns the next registered output audio/video device after d - * or NULL if d is the last one. - */ -AVOutputFormat *av_output_audio_device_next(AVOutputFormat *d); - -/** - * Video output devices iterator. - * - * If d is NULL, returns the first registered output audio/video device, - * if d is non-NULL, returns the next registered output audio/video device after d - * or NULL if d is the last one. - */ -AVOutputFormat *av_output_video_device_next(AVOutputFormat *d); - -typedef struct AVDeviceRect { - int x; /**< x coordinate of top left corner */ - int y; /**< y coordinate of top left corner */ - int width; /**< width */ - int height; /**< height */ -} AVDeviceRect; - -/** - * Message types used by avdevice_app_to_dev_control_message(). - */ -enum AVAppToDevMessageType { - /** - * Dummy message. - */ - AV_APP_TO_DEV_NONE = MKBETAG('N','O','N','E'), - - /** - * Window size change message. - * - * Message is sent to the device every time the application changes the size - * of the window device renders to. - * Message should also be sent right after window is created. - * - * data: AVDeviceRect: new window size. - */ - AV_APP_TO_DEV_WINDOW_SIZE = MKBETAG('G','E','O','M'), - - /** - * Repaint request message. - * - * Message is sent to the device when window has to be repainted. - * - * data: AVDeviceRect: area required to be repainted. - * NULL: whole area is required to be repainted. - */ - AV_APP_TO_DEV_WINDOW_REPAINT = MKBETAG('R','E','P','A'), - - /** - * Request pause/play. - * - * Application requests pause/unpause playback. - * Mostly usable with devices that have internal buffer. - * By default devices are not paused. - * - * data: NULL - */ - AV_APP_TO_DEV_PAUSE = MKBETAG('P', 'A', 'U', ' '), - AV_APP_TO_DEV_PLAY = MKBETAG('P', 'L', 'A', 'Y'), - AV_APP_TO_DEV_TOGGLE_PAUSE = MKBETAG('P', 'A', 'U', 'T'), - - /** - * Volume control message. - * - * Set volume level. It may be device-dependent if volume - * is changed per stream or system wide. Per stream volume - * change is expected when possible. - * - * data: double: new volume with range of 0.0 - 1.0. - */ - AV_APP_TO_DEV_SET_VOLUME = MKBETAG('S', 'V', 'O', 'L'), - - /** - * Mute control messages. - * - * Change mute state. It may be device-dependent if mute status - * is changed per stream or system wide. Per stream mute status - * change is expected when possible. - * - * data: NULL. - */ - AV_APP_TO_DEV_MUTE = MKBETAG(' ', 'M', 'U', 'T'), - AV_APP_TO_DEV_UNMUTE = MKBETAG('U', 'M', 'U', 'T'), - AV_APP_TO_DEV_TOGGLE_MUTE = MKBETAG('T', 'M', 'U', 'T'), - - /** - * Get volume/mute messages. - * - * Force the device to send AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED or - * AV_DEV_TO_APP_MUTE_STATE_CHANGED command respectively. - * - * data: NULL. - */ - AV_APP_TO_DEV_GET_VOLUME = MKBETAG('G', 'V', 'O', 'L'), - AV_APP_TO_DEV_GET_MUTE = MKBETAG('G', 'M', 'U', 'T'), -}; - -/** - * Message types used by avdevice_dev_to_app_control_message(). - */ -enum AVDevToAppMessageType { - /** - * Dummy message. - */ - AV_DEV_TO_APP_NONE = MKBETAG('N','O','N','E'), - - /** - * Create window buffer message. - * - * Device requests to create a window buffer. Exact meaning is device- - * and application-dependent. Message is sent before rendering first - * frame and all one-shot initializations should be done here. - * Application is allowed to ignore preferred window buffer size. - * - * @note: Application is obligated to inform about window buffer size - * with AV_APP_TO_DEV_WINDOW_SIZE message. - * - * data: AVDeviceRect: preferred size of the window buffer. - * NULL: no preferred size of the window buffer. - */ - AV_DEV_TO_APP_CREATE_WINDOW_BUFFER = MKBETAG('B','C','R','E'), - - /** - * Prepare window buffer message. - * - * Device requests to prepare a window buffer for rendering. - * Exact meaning is device- and application-dependent. - * Message is sent before rendering of each frame. - * - * data: NULL. - */ - AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER = MKBETAG('B','P','R','E'), - - /** - * Display window buffer message. - * - * Device requests to display a window buffer. - * Message is sent when new frame is ready to be displayed. - * Usually buffers need to be swapped in handler of this message. - * - * data: NULL. - */ - AV_DEV_TO_APP_DISPLAY_WINDOW_BUFFER = MKBETAG('B','D','I','S'), - - /** - * Destroy window buffer message. - * - * Device requests to destroy a window buffer. - * Message is sent when device is about to be destroyed and window - * buffer is not required anymore. - * - * data: NULL. - */ - AV_DEV_TO_APP_DESTROY_WINDOW_BUFFER = MKBETAG('B','D','E','S'), - - /** - * Buffer fullness status messages. - * - * Device signals buffer overflow/underflow. - * - * data: NULL. - */ - AV_DEV_TO_APP_BUFFER_OVERFLOW = MKBETAG('B','O','F','L'), - AV_DEV_TO_APP_BUFFER_UNDERFLOW = MKBETAG('B','U','F','L'), - - /** - * Buffer readable/writable. - * - * Device informs that buffer is readable/writable. - * When possible, device informs how many bytes can be read/write. - * - * @warning Device may not inform when number of bytes than can be read/write changes. - * - * data: int64_t: amount of bytes available to read/write. - * NULL: amount of bytes available to read/write is not known. - */ - AV_DEV_TO_APP_BUFFER_READABLE = MKBETAG('B','R','D',' '), - AV_DEV_TO_APP_BUFFER_WRITABLE = MKBETAG('B','W','R',' '), - - /** - * Mute state change message. - * - * Device informs that mute state has changed. - * - * data: int: 0 for not muted state, non-zero for muted state. - */ - AV_DEV_TO_APP_MUTE_STATE_CHANGED = MKBETAG('C','M','U','T'), - - /** - * Volume level change message. - * - * Device informs that volume level has changed. - * - * data: double: new volume with range of 0.0 - 1.0. - */ - AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED = MKBETAG('C','V','O','L'), -}; - -/** - * Send control message from application to device. - * - * @param s device context. - * @param type message type. - * @param data message data. Exact type depends on message type. - * @param data_size size of message data. - * @return >= 0 on success, negative on error. - * AVERROR(ENOSYS) when device doesn't implement handler of the message. - */ -int avdevice_app_to_dev_control_message(struct AVFormatContext *s, - enum AVAppToDevMessageType type, - void *data, size_t data_size); - -/** - * Send control message from device to application. - * - * @param s device context. - * @param type message type. - * @param data message data. Can be NULL. - * @param data_size size of message data. - * @return >= 0 on success, negative on error. - * AVERROR(ENOSYS) when application doesn't implement handler of the message. - */ -int avdevice_dev_to_app_control_message(struct AVFormatContext *s, - enum AVDevToAppMessageType type, - void *data, size_t data_size); - -/** - * Following API allows user to probe device capabilities (supported codecs, - * pixel formats, sample formats, resolutions, channel counts, etc). - * It is build on top op AVOption API. - * Queried capabilities make it possible to set up converters of video or audio - * parameters that fit to the device. - * - * List of capabilities that can be queried: - * - Capabilities valid for both audio and video devices: - * - codec: supported audio/video codecs. - * type: AV_OPT_TYPE_INT (AVCodecID value) - * - Capabilities valid for audio devices: - * - sample_format: supported sample formats. - * type: AV_OPT_TYPE_INT (AVSampleFormat value) - * - sample_rate: supported sample rates. - * type: AV_OPT_TYPE_INT - * - channels: supported number of channels. - * type: AV_OPT_TYPE_INT - * - channel_layout: supported channel layouts. - * type: AV_OPT_TYPE_INT64 - * - Capabilities valid for video devices: - * - pixel_format: supported pixel formats. - * type: AV_OPT_TYPE_INT (AVPixelFormat value) - * - window_size: supported window sizes (describes size of the window size presented to the user). - * type: AV_OPT_TYPE_IMAGE_SIZE - * - frame_size: supported frame sizes (describes size of provided video frames). - * type: AV_OPT_TYPE_IMAGE_SIZE - * - fps: supported fps values - * type: AV_OPT_TYPE_RATIONAL - * - * Value of the capability may be set by user using av_opt_set() function - * and AVDeviceCapabilitiesQuery object. Following queries will - * limit results to the values matching already set capabilities. - * For example, setting a codec may impact number of formats or fps values - * returned during next query. Setting invalid value may limit results to zero. - * - * Example of the usage basing on opengl output device: - * - * @code - * AVFormatContext *oc = NULL; - * AVDeviceCapabilitiesQuery *caps = NULL; - * AVOptionRanges *ranges; - * int ret; - * - * if ((ret = avformat_alloc_output_context2(&oc, NULL, "opengl", NULL)) < 0) - * goto fail; - * if (avdevice_capabilities_create(&caps, oc, NULL) < 0) - * goto fail; - * - * //query codecs - * if (av_opt_query_ranges(&ranges, caps, "codec", AV_OPT_MULTI_COMPONENT_RANGE)) < 0) - * goto fail; - * //pick codec here and set it - * av_opt_set(caps, "codec", AV_CODEC_ID_RAWVIDEO, 0); - * - * //query format - * if (av_opt_query_ranges(&ranges, caps, "pixel_format", AV_OPT_MULTI_COMPONENT_RANGE)) < 0) - * goto fail; - * //pick format here and set it - * av_opt_set(caps, "pixel_format", AV_PIX_FMT_YUV420P, 0); - * - * //query and set more capabilities - * - * fail: - * //clean up code - * avdevice_capabilities_free(&query, oc); - * avformat_free_context(oc); - * @endcode - */ - -/** - * Structure describes device capabilities. - * - * It is used by devices in conjunction with av_device_capabilities AVOption table - * to implement capabilities probing API based on AVOption API. Should not be used directly. - */ -typedef struct AVDeviceCapabilitiesQuery { - const AVClass *av_class; - AVFormatContext *device_context; - enum AVCodecID codec; - enum AVSampleFormat sample_format; - enum AVPixelFormat pixel_format; - int sample_rate; - int channels; - int64_t channel_layout; - int window_width; - int window_height; - int frame_width; - int frame_height; - AVRational fps; -} AVDeviceCapabilitiesQuery; - -/** - * AVOption table used by devices to implement device capabilities API. Should not be used by a user. - */ -extern const AVOption av_device_capabilities[]; - -/** - * Initialize capabilities probing API based on AVOption API. - * - * avdevice_capabilities_free() must be called when query capabilities API is - * not used anymore. - * - * @param[out] caps Device capabilities data. Pointer to a NULL pointer must be passed. - * @param s Context of the device. - * @param device_options An AVDictionary filled with device-private options. - * On return this parameter will be destroyed and replaced with a dict - * containing options that were not found. May be NULL. - * The same options must be passed later to avformat_write_header() for output - * devices or avformat_open_input() for input devices, or at any other place - * that affects device-private options. - * - * @return >= 0 on success, negative otherwise. - */ -int avdevice_capabilities_create(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s, - AVDictionary **device_options); - -/** - * Free resources created by avdevice_capabilities_create() - * - * @param caps Device capabilities data to be freed. - * @param s Context of the device. - */ -void avdevice_capabilities_free(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s); - -/** - * Structure describes basic parameters of the device. - */ -typedef struct AVDeviceInfo { - char *device_name; /**< device name, format depends on device */ - char *device_description; /**< human friendly name */ -} AVDeviceInfo; - -/** - * List of devices. - */ -typedef struct AVDeviceInfoList { - AVDeviceInfo **devices; /**< list of autodetected devices */ - int nb_devices; /**< number of autodetected devices */ - int default_device; /**< index of default device or -1 if no default */ -} AVDeviceInfoList; - -/** - * List devices. - * - * Returns available device names and their parameters. - * - * @note: Some devices may accept system-dependent device names that cannot be - * autodetected. The list returned by this function cannot be assumed to - * be always completed. - * - * @param s device context. - * @param[out] device_list list of autodetected devices. - * @return count of autodetected devices, negative on error. - */ -int avdevice_list_devices(struct AVFormatContext *s, AVDeviceInfoList **device_list); - -/** - * Convenient function to free result of avdevice_list_devices(). - * - * @param devices device list to be freed. - */ -void avdevice_free_list_devices(AVDeviceInfoList **device_list); - -/** - * List devices. - * - * Returns available device names and their parameters. - * These are convinient wrappers for avdevice_list_devices(). - * Device context is allocated and deallocated internally. - * - * @param device device format. May be NULL if device name is set. - * @param device_name device name. May be NULL if device format is set. - * @param device_options An AVDictionary filled with device-private options. May be NULL. - * The same options must be passed later to avformat_write_header() for output - * devices or avformat_open_input() for input devices, or at any other place - * that affects device-private options. - * @param[out] device_list list of autodetected devices - * @return count of autodetected devices, negative on error. - * @note device argument takes precedence over device_name when both are set. - */ -int avdevice_list_input_sources(struct AVInputFormat *device, const char *device_name, - AVDictionary *device_options, AVDeviceInfoList **device_list); -int avdevice_list_output_sinks(struct AVOutputFormat *device, const char *device_name, - AVDictionary *device_options, AVDeviceInfoList **device_list); - -/** - * @} - */ - -#endif /* AVDEVICE_AVDEVICE_H */ diff --git a/libs/windows/include/libavdevice/version.h b/libs/windows/include/libavdevice/version.h deleted file mode 100644 index 99041492..00000000 --- a/libs/windows/include/libavdevice/version.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVDEVICE_VERSION_H -#define AVDEVICE_VERSION_H - -/** - * @file - * @ingroup lavd - * Libavdevice version macros - */ - -#include "libavutil/version.h" - -#define LIBAVDEVICE_VERSION_MAJOR 58 -#define LIBAVDEVICE_VERSION_MINOR 4 -#define LIBAVDEVICE_VERSION_MICRO 101 - -#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \ - LIBAVDEVICE_VERSION_MINOR, \ - LIBAVDEVICE_VERSION_MICRO) -#define LIBAVDEVICE_VERSION AV_VERSION(LIBAVDEVICE_VERSION_MAJOR, \ - LIBAVDEVICE_VERSION_MINOR, \ - LIBAVDEVICE_VERSION_MICRO) -#define LIBAVDEVICE_BUILD LIBAVDEVICE_VERSION_INT - -#define LIBAVDEVICE_IDENT "Lavd" AV_STRINGIFY(LIBAVDEVICE_VERSION) - -/** - * FF_API_* defines may be placed below to indicate public API that will be - * dropped at a future version bump. The defines themselves are not part of - * the public API and may change, break or disappear at any time. - */ - -#endif /* AVDEVICE_VERSION_H */ diff --git a/libs/windows/include/libavfilter/avfilter.h b/libs/windows/include/libavfilter/avfilter.h deleted file mode 100644 index 9d70e711..00000000 --- a/libs/windows/include/libavfilter/avfilter.h +++ /dev/null @@ -1,1168 +0,0 @@ -/* - * filter layer - * Copyright (c) 2007 Bobby Bingham - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFILTER_AVFILTER_H -#define AVFILTER_AVFILTER_H - -/** - * @file - * @ingroup lavfi - * Main libavfilter public API header - */ - -/** - * @defgroup lavfi libavfilter - * Graph-based frame editing library. - * - * @{ - */ - -#include - -#include "libavutil/attributes.h" -#include "libavutil/avutil.h" -#include "libavutil/buffer.h" -#include "libavutil/dict.h" -#include "libavutil/frame.h" -#include "libavutil/log.h" -#include "libavutil/samplefmt.h" -#include "libavutil/pixfmt.h" -#include "libavutil/rational.h" - -#include "libavfilter/version.h" - -/** - * Return the LIBAVFILTER_VERSION_INT constant. - */ -unsigned avfilter_version(void); - -/** - * Return the libavfilter build-time configuration. - */ -const char *avfilter_configuration(void); - -/** - * Return the libavfilter license. - */ -const char *avfilter_license(void); - -typedef struct AVFilterContext AVFilterContext; -typedef struct AVFilterLink AVFilterLink; -typedef struct AVFilterPad AVFilterPad; -typedef struct AVFilterFormats AVFilterFormats; - -/** - * Get the number of elements in a NULL-terminated array of AVFilterPads (e.g. - * AVFilter.inputs/outputs). - */ -int avfilter_pad_count(const AVFilterPad *pads); - -/** - * Get the name of an AVFilterPad. - * - * @param pads an array of AVFilterPads - * @param pad_idx index of the pad in the array it; is the caller's - * responsibility to ensure the index is valid - * - * @return name of the pad_idx'th pad in pads - */ -const char *avfilter_pad_get_name(const AVFilterPad *pads, int pad_idx); - -/** - * Get the type of an AVFilterPad. - * - * @param pads an array of AVFilterPads - * @param pad_idx index of the pad in the array; it is the caller's - * responsibility to ensure the index is valid - * - * @return type of the pad_idx'th pad in pads - */ -enum AVMediaType avfilter_pad_get_type(const AVFilterPad *pads, int pad_idx); - -/** - * The number of the filter inputs is not determined just by AVFilter.inputs. - * The filter might add additional inputs during initialization depending on the - * options supplied to it. - */ -#define AVFILTER_FLAG_DYNAMIC_INPUTS (1 << 0) -/** - * The number of the filter outputs is not determined just by AVFilter.outputs. - * The filter might add additional outputs during initialization depending on - * the options supplied to it. - */ -#define AVFILTER_FLAG_DYNAMIC_OUTPUTS (1 << 1) -/** - * The filter supports multithreading by splitting frames into multiple parts - * and processing them concurrently. - */ -#define AVFILTER_FLAG_SLICE_THREADS (1 << 2) -/** - * Some filters support a generic "enable" expression option that can be used - * to enable or disable a filter in the timeline. Filters supporting this - * option have this flag set. When the enable expression is false, the default - * no-op filter_frame() function is called in place of the filter_frame() - * callback defined on each input pad, thus the frame is passed unchanged to - * the next filters. - */ -#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC (1 << 16) -/** - * Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will - * have its filter_frame() callback(s) called as usual even when the enable - * expression is false. The filter will disable filtering within the - * filter_frame() callback(s) itself, for example executing code depending on - * the AVFilterContext->is_disabled value. - */ -#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL (1 << 17) -/** - * Handy mask to test whether the filter supports or no the timeline feature - * (internally or generically). - */ -#define AVFILTER_FLAG_SUPPORT_TIMELINE (AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL) - -/** - * Filter definition. This defines the pads a filter contains, and all the - * callback functions used to interact with the filter. - */ -typedef struct AVFilter { - /** - * Filter name. Must be non-NULL and unique among filters. - */ - const char *name; - - /** - * A description of the filter. May be NULL. - * - * You should use the NULL_IF_CONFIG_SMALL() macro to define it. - */ - const char *description; - - /** - * List of inputs, terminated by a zeroed element. - * - * NULL if there are no (static) inputs. Instances of filters with - * AVFILTER_FLAG_DYNAMIC_INPUTS set may have more inputs than present in - * this list. - */ - const AVFilterPad *inputs; - /** - * List of outputs, terminated by a zeroed element. - * - * NULL if there are no (static) outputs. Instances of filters with - * AVFILTER_FLAG_DYNAMIC_OUTPUTS set may have more outputs than present in - * this list. - */ - const AVFilterPad *outputs; - - /** - * A class for the private data, used to declare filter private AVOptions. - * This field is NULL for filters that do not declare any options. - * - * If this field is non-NULL, the first member of the filter private data - * must be a pointer to AVClass, which will be set by libavfilter generic - * code to this class. - */ - const AVClass *priv_class; - - /** - * A combination of AVFILTER_FLAG_* - */ - int flags; - - /***************************************************************** - * All fields below this line are not part of the public API. They - * may not be used outside of libavfilter and can be changed and - * removed at will. - * New public fields should be added right above. - ***************************************************************** - */ - - /** - * Filter pre-initialization function - * - * This callback will be called immediately after the filter context is - * allocated, to allow allocating and initing sub-objects. - * - * If this callback is not NULL, the uninit callback will be called on - * allocation failure. - * - * @return 0 on success, - * AVERROR code on failure (but the code will be - * dropped and treated as ENOMEM by the calling code) - */ - int (*preinit)(AVFilterContext *ctx); - - /** - * Filter initialization function. - * - * This callback will be called only once during the filter lifetime, after - * all the options have been set, but before links between filters are - * established and format negotiation is done. - * - * Basic filter initialization should be done here. Filters with dynamic - * inputs and/or outputs should create those inputs/outputs here based on - * provided options. No more changes to this filter's inputs/outputs can be - * done after this callback. - * - * This callback must not assume that the filter links exist or frame - * parameters are known. - * - * @ref AVFilter.uninit "uninit" is guaranteed to be called even if - * initialization fails, so this callback does not have to clean up on - * failure. - * - * @return 0 on success, a negative AVERROR on failure - */ - int (*init)(AVFilterContext *ctx); - - /** - * Should be set instead of @ref AVFilter.init "init" by the filters that - * want to pass a dictionary of AVOptions to nested contexts that are - * allocated during init. - * - * On return, the options dict should be freed and replaced with one that - * contains all the options which could not be processed by this filter (or - * with NULL if all the options were processed). - * - * Otherwise the semantics is the same as for @ref AVFilter.init "init". - */ - int (*init_dict)(AVFilterContext *ctx, AVDictionary **options); - - /** - * Filter uninitialization function. - * - * Called only once right before the filter is freed. Should deallocate any - * memory held by the filter, release any buffer references, etc. It does - * not need to deallocate the AVFilterContext.priv memory itself. - * - * This callback may be called even if @ref AVFilter.init "init" was not - * called or failed, so it must be prepared to handle such a situation. - */ - void (*uninit)(AVFilterContext *ctx); - - /** - * Query formats supported by the filter on its inputs and outputs. - * - * This callback is called after the filter is initialized (so the inputs - * and outputs are fixed), shortly before the format negotiation. This - * callback may be called more than once. - * - * This callback must set AVFilterLink.out_formats on every input link and - * AVFilterLink.in_formats on every output link to a list of pixel/sample - * formats that the filter supports on that link. For audio links, this - * filter must also set @ref AVFilterLink.in_samplerates "in_samplerates" / - * @ref AVFilterLink.out_samplerates "out_samplerates" and - * @ref AVFilterLink.in_channel_layouts "in_channel_layouts" / - * @ref AVFilterLink.out_channel_layouts "out_channel_layouts" analogously. - * - * This callback may be NULL for filters with one input, in which case - * libavfilter assumes that it supports all input formats and preserves - * them on output. - * - * @return zero on success, a negative value corresponding to an - * AVERROR code otherwise - */ - int (*query_formats)(AVFilterContext *); - - int priv_size; ///< size of private data to allocate for the filter - - int flags_internal; ///< Additional flags for avfilter internal use only. - - /** - * Used by the filter registration system. Must not be touched by any other - * code. - */ - struct AVFilter *next; - - /** - * Make the filter instance process a command. - * - * @param cmd the command to process, for handling simplicity all commands must be alphanumeric only - * @param arg the argument for the command - * @param res a buffer with size res_size where the filter(s) can return a response. This must not change when the command is not supported. - * @param flags if AVFILTER_CMD_FLAG_FAST is set and the command would be - * time consuming then a filter should treat it like an unsupported command - * - * @returns >=0 on success otherwise an error code. - * AVERROR(ENOSYS) on unsupported commands - */ - int (*process_command)(AVFilterContext *, const char *cmd, const char *arg, char *res, int res_len, int flags); - - /** - * Filter initialization function, alternative to the init() - * callback. Args contains the user-supplied parameters, opaque is - * used for providing binary data. - */ - int (*init_opaque)(AVFilterContext *ctx, void *opaque); - - /** - * Filter activation function. - * - * Called when any processing is needed from the filter, instead of any - * filter_frame and request_frame on pads. - * - * The function must examine inlinks and outlinks and perform a single - * step of processing. If there is nothing to do, the function must do - * nothing and not return an error. If more steps are or may be - * possible, it must use ff_filter_set_ready() to schedule another - * activation. - */ - int (*activate)(AVFilterContext *ctx); -} AVFilter; - -/** - * Process multiple parts of the frame concurrently. - */ -#define AVFILTER_THREAD_SLICE (1 << 0) - -typedef struct AVFilterInternal AVFilterInternal; - -/** An instance of a filter */ -struct AVFilterContext { - const AVClass *av_class; ///< needed for av_log() and filters common options - - const AVFilter *filter; ///< the AVFilter of which this is an instance - - char *name; ///< name of this filter instance - - AVFilterPad *input_pads; ///< array of input pads - AVFilterLink **inputs; ///< array of pointers to input links - unsigned nb_inputs; ///< number of input pads - - AVFilterPad *output_pads; ///< array of output pads - AVFilterLink **outputs; ///< array of pointers to output links - unsigned nb_outputs; ///< number of output pads - - void *priv; ///< private data for use by the filter - - struct AVFilterGraph *graph; ///< filtergraph this filter belongs to - - /** - * Type of multithreading being allowed/used. A combination of - * AVFILTER_THREAD_* flags. - * - * May be set by the caller before initializing the filter to forbid some - * or all kinds of multithreading for this filter. The default is allowing - * everything. - * - * When the filter is initialized, this field is combined using bit AND with - * AVFilterGraph.thread_type to get the final mask used for determining - * allowed threading types. I.e. a threading type needs to be set in both - * to be allowed. - * - * After the filter is initialized, libavfilter sets this field to the - * threading type that is actually used (0 for no multithreading). - */ - int thread_type; - - /** - * An opaque struct for libavfilter internal use. - */ - AVFilterInternal *internal; - - struct AVFilterCommand *command_queue; - - char *enable_str; ///< enable expression string - void *enable; ///< parsed expression (AVExpr*) - double *var_values; ///< variable values for the enable expression - int is_disabled; ///< the enabled state from the last expression evaluation - - /** - * For filters which will create hardware frames, sets the device the - * filter should create them in. All other filters will ignore this field: - * in particular, a filter which consumes or processes hardware frames will - * instead use the hw_frames_ctx field in AVFilterLink to carry the - * hardware context information. - */ - AVBufferRef *hw_device_ctx; - - /** - * Max number of threads allowed in this filter instance. - * If <= 0, its value is ignored. - * Overrides global number of threads set per filter graph. - */ - int nb_threads; - - /** - * Ready status of the filter. - * A non-0 value means that the filter needs activating; - * a higher value suggests a more urgent activation. - */ - unsigned ready; - - /** - * Sets the number of extra hardware frames which the filter will - * allocate on its output links for use in following filters or by - * the caller. - * - * Some hardware filters require all frames that they will use for - * output to be defined in advance before filtering starts. For such - * filters, any hardware frame pools used for output must therefore be - * of fixed size. The extra frames set here are on top of any number - * that the filter needs internally in order to operate normally. - * - * This field must be set before the graph containing this filter is - * configured. - */ - int extra_hw_frames; -}; - -/** - * A link between two filters. This contains pointers to the source and - * destination filters between which this link exists, and the indexes of - * the pads involved. In addition, this link also contains the parameters - * which have been negotiated and agreed upon between the filter, such as - * image dimensions, format, etc. - * - * Applications must not normally access the link structure directly. - * Use the buffersrc and buffersink API instead. - * In the future, access to the header may be reserved for filters - * implementation. - */ -struct AVFilterLink { - AVFilterContext *src; ///< source filter - AVFilterPad *srcpad; ///< output pad on the source filter - - AVFilterContext *dst; ///< dest filter - AVFilterPad *dstpad; ///< input pad on the dest filter - - enum AVMediaType type; ///< filter media type - - /* These parameters apply only to video */ - int w; ///< agreed upon image width - int h; ///< agreed upon image height - AVRational sample_aspect_ratio; ///< agreed upon sample aspect ratio - /* These parameters apply only to audio */ - uint64_t channel_layout; ///< channel layout of current buffer (see libavutil/channel_layout.h) - int sample_rate; ///< samples per second - - int format; ///< agreed upon media format - - /** - * Define the time base used by the PTS of the frames/samples - * which will pass through this link. - * During the configuration stage, each filter is supposed to - * change only the output timebase, while the timebase of the - * input link is assumed to be an unchangeable property. - */ - AVRational time_base; - - /***************************************************************** - * All fields below this line are not part of the public API. They - * may not be used outside of libavfilter and can be changed and - * removed at will. - * New public fields should be added right above. - ***************************************************************** - */ - /** - * Lists of formats and channel layouts supported by the input and output - * filters respectively. These lists are used for negotiating the format - * to actually be used, which will be loaded into the format and - * channel_layout members, above, when chosen. - * - */ - AVFilterFormats *in_formats; - AVFilterFormats *out_formats; - - /** - * Lists of channel layouts and sample rates used for automatic - * negotiation. - */ - AVFilterFormats *in_samplerates; - AVFilterFormats *out_samplerates; - struct AVFilterChannelLayouts *in_channel_layouts; - struct AVFilterChannelLayouts *out_channel_layouts; - - /** - * Audio only, the destination filter sets this to a non-zero value to - * request that buffers with the given number of samples should be sent to - * it. AVFilterPad.needs_fifo must also be set on the corresponding input - * pad. - * Last buffer before EOF will be padded with silence. - */ - int request_samples; - - /** stage of the initialization of the link properties (dimensions, etc) */ - enum { - AVLINK_UNINIT = 0, ///< not started - AVLINK_STARTINIT, ///< started, but incomplete - AVLINK_INIT ///< complete - } init_state; - - /** - * Graph the filter belongs to. - */ - struct AVFilterGraph *graph; - - /** - * Current timestamp of the link, as defined by the most recent - * frame(s), in link time_base units. - */ - int64_t current_pts; - - /** - * Current timestamp of the link, as defined by the most recent - * frame(s), in AV_TIME_BASE units. - */ - int64_t current_pts_us; - - /** - * Index in the age array. - */ - int age_index; - - /** - * Frame rate of the stream on the link, or 1/0 if unknown or variable; - * if left to 0/0, will be automatically copied from the first input - * of the source filter if it exists. - * - * Sources should set it to the best estimation of the real frame rate. - * If the source frame rate is unknown or variable, set this to 1/0. - * Filters should update it if necessary depending on their function. - * Sinks can use it to set a default output frame rate. - * It is similar to the r_frame_rate field in AVStream. - */ - AVRational frame_rate; - - /** - * Buffer partially filled with samples to achieve a fixed/minimum size. - */ - AVFrame *partial_buf; - - /** - * Size of the partial buffer to allocate. - * Must be between min_samples and max_samples. - */ - int partial_buf_size; - - /** - * Minimum number of samples to filter at once. If filter_frame() is - * called with fewer samples, it will accumulate them in partial_buf. - * This field and the related ones must not be changed after filtering - * has started. - * If 0, all related fields are ignored. - */ - int min_samples; - - /** - * Maximum number of samples to filter at once. If filter_frame() is - * called with more samples, it will split them. - */ - int max_samples; - - /** - * Number of channels. - */ - int channels; - - /** - * Link processing flags. - */ - unsigned flags; - - /** - * Number of past frames sent through the link. - */ - int64_t frame_count_in, frame_count_out; - - /** - * A pointer to a FFFramePool struct. - */ - void *frame_pool; - - /** - * True if a frame is currently wanted on the output of this filter. - * Set when ff_request_frame() is called by the output, - * cleared when a frame is filtered. - */ - int frame_wanted_out; - - /** - * For hwaccel pixel formats, this should be a reference to the - * AVHWFramesContext describing the frames. - */ - AVBufferRef *hw_frames_ctx; - -#ifndef FF_INTERNAL_FIELDS - - /** - * Internal structure members. - * The fields below this limit are internal for libavfilter's use - * and must in no way be accessed by applications. - */ - char reserved[0xF000]; - -#else /* FF_INTERNAL_FIELDS */ - - /** - * Queue of frames waiting to be filtered. - */ - FFFrameQueue fifo; - - /** - * If set, the source filter can not generate a frame as is. - * The goal is to avoid repeatedly calling the request_frame() method on - * the same link. - */ - int frame_blocked_in; - - /** - * Link input status. - * If not zero, all attempts of filter_frame will fail with the - * corresponding code. - */ - int status_in; - - /** - * Timestamp of the input status change. - */ - int64_t status_in_pts; - - /** - * Link output status. - * If not zero, all attempts of request_frame will fail with the - * corresponding code. - */ - int status_out; - -#endif /* FF_INTERNAL_FIELDS */ - -}; - -/** - * Link two filters together. - * - * @param src the source filter - * @param srcpad index of the output pad on the source filter - * @param dst the destination filter - * @param dstpad index of the input pad on the destination filter - * @return zero on success - */ -int avfilter_link(AVFilterContext *src, unsigned srcpad, - AVFilterContext *dst, unsigned dstpad); - -/** - * Free the link in *link, and set its pointer to NULL. - */ -void avfilter_link_free(AVFilterLink **link); - -#if FF_API_FILTER_GET_SET -/** - * Get the number of channels of a link. - * @deprecated Use av_buffersink_get_channels() - */ -attribute_deprecated -int avfilter_link_get_channels(AVFilterLink *link); -#endif - -/** - * Set the closed field of a link. - * @deprecated applications are not supposed to mess with links, they should - * close the sinks. - */ -attribute_deprecated -void avfilter_link_set_closed(AVFilterLink *link, int closed); - -/** - * Negotiate the media format, dimensions, etc of all inputs to a filter. - * - * @param filter the filter to negotiate the properties for its inputs - * @return zero on successful negotiation - */ -int avfilter_config_links(AVFilterContext *filter); - -#define AVFILTER_CMD_FLAG_ONE 1 ///< Stop once a filter understood the command (for target=all for example), fast filters are favored automatically -#define AVFILTER_CMD_FLAG_FAST 2 ///< Only execute command when its fast (like a video out that supports contrast adjustment in hw) - -/** - * Make the filter instance process a command. - * It is recommended to use avfilter_graph_send_command(). - */ -int avfilter_process_command(AVFilterContext *filter, const char *cmd, const char *arg, char *res, int res_len, int flags); - -/** - * Iterate over all registered filters. - * - * @param opaque a pointer where libavfilter will store the iteration state. Must - * point to NULL to start the iteration. - * - * @return the next registered filter or NULL when the iteration is - * finished - */ -const AVFilter *av_filter_iterate(void **opaque); - -#if FF_API_NEXT -/** Initialize the filter system. Register all builtin filters. */ -attribute_deprecated -void avfilter_register_all(void); - -/** - * Register a filter. This is only needed if you plan to use - * avfilter_get_by_name later to lookup the AVFilter structure by name. A - * filter can still by instantiated with avfilter_graph_alloc_filter even if it - * is not registered. - * - * @param filter the filter to register - * @return 0 if the registration was successful, a negative value - * otherwise - */ -attribute_deprecated -int avfilter_register(AVFilter *filter); - -/** - * Iterate over all registered filters. - * @return If prev is non-NULL, next registered filter after prev or NULL if - * prev is the last filter. If prev is NULL, return the first registered filter. - */ -attribute_deprecated -const AVFilter *avfilter_next(const AVFilter *prev); -#endif - -/** - * Get a filter definition matching the given name. - * - * @param name the filter name to find - * @return the filter definition, if any matching one is registered. - * NULL if none found. - */ -const AVFilter *avfilter_get_by_name(const char *name); - - -/** - * Initialize a filter with the supplied parameters. - * - * @param ctx uninitialized filter context to initialize - * @param args Options to initialize the filter with. This must be a - * ':'-separated list of options in the 'key=value' form. - * May be NULL if the options have been set directly using the - * AVOptions API or there are no options that need to be set. - * @return 0 on success, a negative AVERROR on failure - */ -int avfilter_init_str(AVFilterContext *ctx, const char *args); - -/** - * Initialize a filter with the supplied dictionary of options. - * - * @param ctx uninitialized filter context to initialize - * @param options An AVDictionary filled with options for this filter. On - * return this parameter will be destroyed and replaced with - * a dict containing options that were not found. This dictionary - * must be freed by the caller. - * May be NULL, then this function is equivalent to - * avfilter_init_str() with the second parameter set to NULL. - * @return 0 on success, a negative AVERROR on failure - * - * @note This function and avfilter_init_str() do essentially the same thing, - * the difference is in manner in which the options are passed. It is up to the - * calling code to choose whichever is more preferable. The two functions also - * behave differently when some of the provided options are not declared as - * supported by the filter. In such a case, avfilter_init_str() will fail, but - * this function will leave those extra options in the options AVDictionary and - * continue as usual. - */ -int avfilter_init_dict(AVFilterContext *ctx, AVDictionary **options); - -/** - * Free a filter context. This will also remove the filter from its - * filtergraph's list of filters. - * - * @param filter the filter to free - */ -void avfilter_free(AVFilterContext *filter); - -/** - * Insert a filter in the middle of an existing link. - * - * @param link the link into which the filter should be inserted - * @param filt the filter to be inserted - * @param filt_srcpad_idx the input pad on the filter to connect - * @param filt_dstpad_idx the output pad on the filter to connect - * @return zero on success - */ -int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt, - unsigned filt_srcpad_idx, unsigned filt_dstpad_idx); - -/** - * @return AVClass for AVFilterContext. - * - * @see av_opt_find(). - */ -const AVClass *avfilter_get_class(void); - -typedef struct AVFilterGraphInternal AVFilterGraphInternal; - -/** - * A function pointer passed to the @ref AVFilterGraph.execute callback to be - * executed multiple times, possibly in parallel. - * - * @param ctx the filter context the job belongs to - * @param arg an opaque parameter passed through from @ref - * AVFilterGraph.execute - * @param jobnr the index of the job being executed - * @param nb_jobs the total number of jobs - * - * @return 0 on success, a negative AVERROR on error - */ -typedef int (avfilter_action_func)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); - -/** - * A function executing multiple jobs, possibly in parallel. - * - * @param ctx the filter context to which the jobs belong - * @param func the function to be called multiple times - * @param arg the argument to be passed to func - * @param ret a nb_jobs-sized array to be filled with return values from each - * invocation of func - * @param nb_jobs the number of jobs to execute - * - * @return 0 on success, a negative AVERROR on error - */ -typedef int (avfilter_execute_func)(AVFilterContext *ctx, avfilter_action_func *func, - void *arg, int *ret, int nb_jobs); - -typedef struct AVFilterGraph { - const AVClass *av_class; - AVFilterContext **filters; - unsigned nb_filters; - - char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters -#if FF_API_LAVR_OPTS - attribute_deprecated char *resample_lavr_opts; ///< libavresample options to use for the auto-inserted resample filters -#endif - - /** - * Type of multithreading allowed for filters in this graph. A combination - * of AVFILTER_THREAD_* flags. - * - * May be set by the caller at any point, the setting will apply to all - * filters initialized after that. The default is allowing everything. - * - * When a filter in this graph is initialized, this field is combined using - * bit AND with AVFilterContext.thread_type to get the final mask used for - * determining allowed threading types. I.e. a threading type needs to be - * set in both to be allowed. - */ - int thread_type; - - /** - * Maximum number of threads used by filters in this graph. May be set by - * the caller before adding any filters to the filtergraph. Zero (the - * default) means that the number of threads is determined automatically. - */ - int nb_threads; - - /** - * Opaque object for libavfilter internal use. - */ - AVFilterGraphInternal *internal; - - /** - * Opaque user data. May be set by the caller to an arbitrary value, e.g. to - * be used from callbacks like @ref AVFilterGraph.execute. - * Libavfilter will not touch this field in any way. - */ - void *opaque; - - /** - * This callback may be set by the caller immediately after allocating the - * graph and before adding any filters to it, to provide a custom - * multithreading implementation. - * - * If set, filters with slice threading capability will call this callback - * to execute multiple jobs in parallel. - * - * If this field is left unset, libavfilter will use its internal - * implementation, which may or may not be multithreaded depending on the - * platform and build options. - */ - avfilter_execute_func *execute; - - char *aresample_swr_opts; ///< swr options to use for the auto-inserted aresample filters, Access ONLY through AVOptions - - /** - * Private fields - * - * The following fields are for internal use only. - * Their type, offset, number and semantic can change without notice. - */ - - AVFilterLink **sink_links; - int sink_links_count; - - unsigned disable_auto_convert; -} AVFilterGraph; - -/** - * Allocate a filter graph. - * - * @return the allocated filter graph on success or NULL. - */ -AVFilterGraph *avfilter_graph_alloc(void); - -/** - * Create a new filter instance in a filter graph. - * - * @param graph graph in which the new filter will be used - * @param filter the filter to create an instance of - * @param name Name to give to the new instance (will be copied to - * AVFilterContext.name). This may be used by the caller to identify - * different filters, libavfilter itself assigns no semantics to - * this parameter. May be NULL. - * - * @return the context of the newly created filter instance (note that it is - * also retrievable directly through AVFilterGraph.filters or with - * avfilter_graph_get_filter()) on success or NULL on failure. - */ -AVFilterContext *avfilter_graph_alloc_filter(AVFilterGraph *graph, - const AVFilter *filter, - const char *name); - -/** - * Get a filter instance identified by instance name from graph. - * - * @param graph filter graph to search through. - * @param name filter instance name (should be unique in the graph). - * @return the pointer to the found filter instance or NULL if it - * cannot be found. - */ -AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, const char *name); - -/** - * Create and add a filter instance into an existing graph. - * The filter instance is created from the filter filt and inited - * with the parameters args and opaque. - * - * In case of success put in *filt_ctx the pointer to the created - * filter instance, otherwise set *filt_ctx to NULL. - * - * @param name the instance name to give to the created filter instance - * @param graph_ctx the filter graph - * @return a negative AVERROR error code in case of failure, a non - * negative value otherwise - */ -int avfilter_graph_create_filter(AVFilterContext **filt_ctx, const AVFilter *filt, - const char *name, const char *args, void *opaque, - AVFilterGraph *graph_ctx); - -/** - * Enable or disable automatic format conversion inside the graph. - * - * Note that format conversion can still happen inside explicitly inserted - * scale and aresample filters. - * - * @param flags any of the AVFILTER_AUTO_CONVERT_* constants - */ -void avfilter_graph_set_auto_convert(AVFilterGraph *graph, unsigned flags); - -enum { - AVFILTER_AUTO_CONVERT_ALL = 0, /**< all automatic conversions enabled */ - AVFILTER_AUTO_CONVERT_NONE = -1, /**< all automatic conversions disabled */ -}; - -/** - * Check validity and configure all the links and formats in the graph. - * - * @param graphctx the filter graph - * @param log_ctx context used for logging - * @return >= 0 in case of success, a negative AVERROR code otherwise - */ -int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx); - -/** - * Free a graph, destroy its links, and set *graph to NULL. - * If *graph is NULL, do nothing. - */ -void avfilter_graph_free(AVFilterGraph **graph); - -/** - * A linked-list of the inputs/outputs of the filter chain. - * - * This is mainly useful for avfilter_graph_parse() / avfilter_graph_parse2(), - * where it is used to communicate open (unlinked) inputs and outputs from and - * to the caller. - * This struct specifies, per each not connected pad contained in the graph, the - * filter context and the pad index required for establishing a link. - */ -typedef struct AVFilterInOut { - /** unique name for this input/output in the list */ - char *name; - - /** filter context associated to this input/output */ - AVFilterContext *filter_ctx; - - /** index of the filt_ctx pad to use for linking */ - int pad_idx; - - /** next input/input in the list, NULL if this is the last */ - struct AVFilterInOut *next; -} AVFilterInOut; - -/** - * Allocate a single AVFilterInOut entry. - * Must be freed with avfilter_inout_free(). - * @return allocated AVFilterInOut on success, NULL on failure. - */ -AVFilterInOut *avfilter_inout_alloc(void); - -/** - * Free the supplied list of AVFilterInOut and set *inout to NULL. - * If *inout is NULL, do nothing. - */ -void avfilter_inout_free(AVFilterInOut **inout); - -/** - * Add a graph described by a string to a graph. - * - * @note The caller must provide the lists of inputs and outputs, - * which therefore must be known before calling the function. - * - * @note The inputs parameter describes inputs of the already existing - * part of the graph; i.e. from the point of view of the newly created - * part, they are outputs. Similarly the outputs parameter describes - * outputs of the already existing filters, which are provided as - * inputs to the parsed filters. - * - * @param graph the filter graph where to link the parsed graph context - * @param filters string to be parsed - * @param inputs linked list to the inputs of the graph - * @param outputs linked list to the outputs of the graph - * @return zero on success, a negative AVERROR code on error - */ -int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, - AVFilterInOut *inputs, AVFilterInOut *outputs, - void *log_ctx); - -/** - * Add a graph described by a string to a graph. - * - * In the graph filters description, if the input label of the first - * filter is not specified, "in" is assumed; if the output label of - * the last filter is not specified, "out" is assumed. - * - * @param graph the filter graph where to link the parsed graph context - * @param filters string to be parsed - * @param inputs pointer to a linked list to the inputs of the graph, may be NULL. - * If non-NULL, *inputs is updated to contain the list of open inputs - * after the parsing, should be freed with avfilter_inout_free(). - * @param outputs pointer to a linked list to the outputs of the graph, may be NULL. - * If non-NULL, *outputs is updated to contain the list of open outputs - * after the parsing, should be freed with avfilter_inout_free(). - * @return non negative on success, a negative AVERROR code on error - */ -int avfilter_graph_parse_ptr(AVFilterGraph *graph, const char *filters, - AVFilterInOut **inputs, AVFilterInOut **outputs, - void *log_ctx); - -/** - * Add a graph described by a string to a graph. - * - * @param[in] graph the filter graph where to link the parsed graph context - * @param[in] filters string to be parsed - * @param[out] inputs a linked list of all free (unlinked) inputs of the - * parsed graph will be returned here. It is to be freed - * by the caller using avfilter_inout_free(). - * @param[out] outputs a linked list of all free (unlinked) outputs of the - * parsed graph will be returned here. It is to be freed by the - * caller using avfilter_inout_free(). - * @return zero on success, a negative AVERROR code on error - * - * @note This function returns the inputs and outputs that are left - * unlinked after parsing the graph and the caller then deals with - * them. - * @note This function makes no reference whatsoever to already - * existing parts of the graph and the inputs parameter will on return - * contain inputs of the newly parsed part of the graph. Analogously - * the outputs parameter will contain outputs of the newly created - * filters. - */ -int avfilter_graph_parse2(AVFilterGraph *graph, const char *filters, - AVFilterInOut **inputs, - AVFilterInOut **outputs); - -/** - * Send a command to one or more filter instances. - * - * @param graph the filter graph - * @param target the filter(s) to which the command should be sent - * "all" sends to all filters - * otherwise it can be a filter or filter instance name - * which will send the command to all matching filters. - * @param cmd the command to send, for handling simplicity all commands must be alphanumeric only - * @param arg the argument for the command - * @param res a buffer with size res_size where the filter(s) can return a response. - * - * @returns >=0 on success otherwise an error code. - * AVERROR(ENOSYS) on unsupported commands - */ -int avfilter_graph_send_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, char *res, int res_len, int flags); - -/** - * Queue a command for one or more filter instances. - * - * @param graph the filter graph - * @param target the filter(s) to which the command should be sent - * "all" sends to all filters - * otherwise it can be a filter or filter instance name - * which will send the command to all matching filters. - * @param cmd the command to sent, for handling simplicity all commands must be alphanumeric only - * @param arg the argument for the command - * @param ts time at which the command should be sent to the filter - * - * @note As this executes commands after this function returns, no return code - * from the filter is provided, also AVFILTER_CMD_FLAG_ONE is not supported. - */ -int avfilter_graph_queue_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, int flags, double ts); - - -/** - * Dump a graph into a human-readable string representation. - * - * @param graph the graph to dump - * @param options formatting options; currently ignored - * @return a string, or NULL in case of memory allocation failure; - * the string must be freed using av_free - */ -char *avfilter_graph_dump(AVFilterGraph *graph, const char *options); - -/** - * Request a frame on the oldest sink link. - * - * If the request returns AVERROR_EOF, try the next. - * - * Note that this function is not meant to be the sole scheduling mechanism - * of a filtergraph, only a convenience function to help drain a filtergraph - * in a balanced way under normal circumstances. - * - * Also note that AVERROR_EOF does not mean that frames did not arrive on - * some of the sinks during the process. - * When there are multiple sink links, in case the requested link - * returns an EOF, this may cause a filter to flush pending frames - * which are sent to another sink link, although unrequested. - * - * @return the return value of ff_request_frame(), - * or AVERROR_EOF if all links returned AVERROR_EOF - */ -int avfilter_graph_request_oldest(AVFilterGraph *graph); - -/** - * @} - */ - -#endif /* AVFILTER_AVFILTER_H */ diff --git a/libs/windows/include/libavfilter/buffersink.h b/libs/windows/include/libavfilter/buffersink.h deleted file mode 100644 index 21d6bb50..00000000 --- a/libs/windows/include/libavfilter/buffersink.h +++ /dev/null @@ -1,165 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFILTER_BUFFERSINK_H -#define AVFILTER_BUFFERSINK_H - -/** - * @file - * @ingroup lavfi_buffersink - * memory buffer sink API for audio and video - */ - -#include "avfilter.h" - -/** - * @defgroup lavfi_buffersink Buffer sink API - * @ingroup lavfi - * @{ - */ - -/** - * Get a frame with filtered data from sink and put it in frame. - * - * @param ctx pointer to a buffersink or abuffersink filter context. - * @param frame pointer to an allocated frame that will be filled with data. - * The data must be freed using av_frame_unref() / av_frame_free() - * @param flags a combination of AV_BUFFERSINK_FLAG_* flags - * - * @return >= 0 in for success, a negative AVERROR code for failure. - */ -int av_buffersink_get_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags); - -/** - * Tell av_buffersink_get_buffer_ref() to read video/samples buffer - * reference, but not remove it from the buffer. This is useful if you - * need only to read a video/samples buffer, without to fetch it. - */ -#define AV_BUFFERSINK_FLAG_PEEK 1 - -/** - * Tell av_buffersink_get_buffer_ref() not to request a frame from its input. - * If a frame is already buffered, it is read (and removed from the buffer), - * but if no frame is present, return AVERROR(EAGAIN). - */ -#define AV_BUFFERSINK_FLAG_NO_REQUEST 2 - -/** - * Struct to use for initializing a buffersink context. - */ -typedef struct AVBufferSinkParams { - const enum AVPixelFormat *pixel_fmts; ///< list of allowed pixel formats, terminated by AV_PIX_FMT_NONE -} AVBufferSinkParams; - -/** - * Create an AVBufferSinkParams structure. - * - * Must be freed with av_free(). - */ -AVBufferSinkParams *av_buffersink_params_alloc(void); - -/** - * Struct to use for initializing an abuffersink context. - */ -typedef struct AVABufferSinkParams { - const enum AVSampleFormat *sample_fmts; ///< list of allowed sample formats, terminated by AV_SAMPLE_FMT_NONE - const int64_t *channel_layouts; ///< list of allowed channel layouts, terminated by -1 - const int *channel_counts; ///< list of allowed channel counts, terminated by -1 - int all_channel_counts; ///< if not 0, accept any channel count or layout - int *sample_rates; ///< list of allowed sample rates, terminated by -1 -} AVABufferSinkParams; - -/** - * Create an AVABufferSinkParams structure. - * - * Must be freed with av_free(). - */ -AVABufferSinkParams *av_abuffersink_params_alloc(void); - -/** - * Set the frame size for an audio buffer sink. - * - * All calls to av_buffersink_get_buffer_ref will return a buffer with - * exactly the specified number of samples, or AVERROR(EAGAIN) if there is - * not enough. The last buffer at EOF will be padded with 0. - */ -void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size); - -/** - * @defgroup lavfi_buffersink_accessors Buffer sink accessors - * Get the properties of the stream - * @{ - */ - -enum AVMediaType av_buffersink_get_type (const AVFilterContext *ctx); -AVRational av_buffersink_get_time_base (const AVFilterContext *ctx); -int av_buffersink_get_format (const AVFilterContext *ctx); - -AVRational av_buffersink_get_frame_rate (const AVFilterContext *ctx); -int av_buffersink_get_w (const AVFilterContext *ctx); -int av_buffersink_get_h (const AVFilterContext *ctx); -AVRational av_buffersink_get_sample_aspect_ratio (const AVFilterContext *ctx); - -int av_buffersink_get_channels (const AVFilterContext *ctx); -uint64_t av_buffersink_get_channel_layout (const AVFilterContext *ctx); -int av_buffersink_get_sample_rate (const AVFilterContext *ctx); - -AVBufferRef * av_buffersink_get_hw_frames_ctx (const AVFilterContext *ctx); - -/** @} */ - -/** - * Get a frame with filtered data from sink and put it in frame. - * - * @param ctx pointer to a context of a buffersink or abuffersink AVFilter. - * @param frame pointer to an allocated frame that will be filled with data. - * The data must be freed using av_frame_unref() / av_frame_free() - * - * @return - * - >= 0 if a frame was successfully returned. - * - AVERROR(EAGAIN) if no frames are available at this point; more - * input frames must be added to the filtergraph to get more output. - * - AVERROR_EOF if there will be no more output frames on this sink. - * - A different negative AVERROR code in other failure cases. - */ -int av_buffersink_get_frame(AVFilterContext *ctx, AVFrame *frame); - -/** - * Same as av_buffersink_get_frame(), but with the ability to specify the number - * of samples read. This function is less efficient than - * av_buffersink_get_frame(), because it copies the data around. - * - * @param ctx pointer to a context of the abuffersink AVFilter. - * @param frame pointer to an allocated frame that will be filled with data. - * The data must be freed using av_frame_unref() / av_frame_free() - * frame will contain exactly nb_samples audio samples, except at - * the end of stream, when it can contain less than nb_samples. - * - * @return The return codes have the same meaning as for - * av_buffersink_get_samples(). - * - * @warning do not mix this function with av_buffersink_get_frame(). Use only one or - * the other with a single sink, not both. - */ -int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int nb_samples); - -/** - * @} - */ - -#endif /* AVFILTER_BUFFERSINK_H */ diff --git a/libs/windows/include/libavfilter/buffersrc.h b/libs/windows/include/libavfilter/buffersrc.h deleted file mode 100644 index 0652113f..00000000 --- a/libs/windows/include/libavfilter/buffersrc.h +++ /dev/null @@ -1,209 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFILTER_BUFFERSRC_H -#define AVFILTER_BUFFERSRC_H - -/** - * @file - * @ingroup lavfi_buffersrc - * Memory buffer source API. - */ - -#include "avfilter.h" - -/** - * @defgroup lavfi_buffersrc Buffer source API - * @ingroup lavfi - * @{ - */ - -enum { - - /** - * Do not check for format changes. - */ - AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT = 1, - - /** - * Immediately push the frame to the output. - */ - AV_BUFFERSRC_FLAG_PUSH = 4, - - /** - * Keep a reference to the frame. - * If the frame if reference-counted, create a new reference; otherwise - * copy the frame data. - */ - AV_BUFFERSRC_FLAG_KEEP_REF = 8, - -}; - -/** - * Get the number of failed requests. - * - * A failed request is when the request_frame method is called while no - * frame is present in the buffer. - * The number is reset when a frame is added. - */ -unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src); - -/** - * This structure contains the parameters describing the frames that will be - * passed to this filter. - * - * It should be allocated with av_buffersrc_parameters_alloc() and freed with - * av_free(). All the allocated fields in it remain owned by the caller. - */ -typedef struct AVBufferSrcParameters { - /** - * video: the pixel format, value corresponds to enum AVPixelFormat - * audio: the sample format, value corresponds to enum AVSampleFormat - */ - int format; - /** - * The timebase to be used for the timestamps on the input frames. - */ - AVRational time_base; - - /** - * Video only, the display dimensions of the input frames. - */ - int width, height; - - /** - * Video only, the sample (pixel) aspect ratio. - */ - AVRational sample_aspect_ratio; - - /** - * Video only, the frame rate of the input video. This field must only be - * set to a non-zero value if input stream has a known constant framerate - * and should be left at its initial value if the framerate is variable or - * unknown. - */ - AVRational frame_rate; - - /** - * Video with a hwaccel pixel format only. This should be a reference to an - * AVHWFramesContext instance describing the input frames. - */ - AVBufferRef *hw_frames_ctx; - - /** - * Audio only, the audio sampling rate in samples per secon. - */ - int sample_rate; - - /** - * Audio only, the audio channel layout - */ - uint64_t channel_layout; -} AVBufferSrcParameters; - -/** - * Allocate a new AVBufferSrcParameters instance. It should be freed by the - * caller with av_free(). - */ -AVBufferSrcParameters *av_buffersrc_parameters_alloc(void); - -/** - * Initialize the buffersrc or abuffersrc filter with the provided parameters. - * This function may be called multiple times, the later calls override the - * previous ones. Some of the parameters may also be set through AVOptions, then - * whatever method is used last takes precedence. - * - * @param ctx an instance of the buffersrc or abuffersrc filter - * @param param the stream parameters. The frames later passed to this filter - * must conform to those parameters. All the allocated fields in - * param remain owned by the caller, libavfilter will make internal - * copies or references when necessary. - * @return 0 on success, a negative AVERROR code on failure. - */ -int av_buffersrc_parameters_set(AVFilterContext *ctx, AVBufferSrcParameters *param); - -/** - * Add a frame to the buffer source. - * - * @param ctx an instance of the buffersrc filter - * @param frame frame to be added. If the frame is reference counted, this - * function will make a new reference to it. Otherwise the frame data will be - * copied. - * - * @return 0 on success, a negative AVERROR on error - * - * This function is equivalent to av_buffersrc_add_frame_flags() with the - * AV_BUFFERSRC_FLAG_KEEP_REF flag. - */ -av_warn_unused_result -int av_buffersrc_write_frame(AVFilterContext *ctx, const AVFrame *frame); - -/** - * Add a frame to the buffer source. - * - * @param ctx an instance of the buffersrc filter - * @param frame frame to be added. If the frame is reference counted, this - * function will take ownership of the reference(s) and reset the frame. - * Otherwise the frame data will be copied. If this function returns an error, - * the input frame is not touched. - * - * @return 0 on success, a negative AVERROR on error. - * - * @note the difference between this function and av_buffersrc_write_frame() is - * that av_buffersrc_write_frame() creates a new reference to the input frame, - * while this function takes ownership of the reference passed to it. - * - * This function is equivalent to av_buffersrc_add_frame_flags() without the - * AV_BUFFERSRC_FLAG_KEEP_REF flag. - */ -av_warn_unused_result -int av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame); - -/** - * Add a frame to the buffer source. - * - * By default, if the frame is reference-counted, this function will take - * ownership of the reference(s) and reset the frame. This can be controlled - * using the flags. - * - * If this function returns an error, the input frame is not touched. - * - * @param buffer_src pointer to a buffer source context - * @param frame a frame, or NULL to mark EOF - * @param flags a combination of AV_BUFFERSRC_FLAG_* - * @return >= 0 in case of success, a negative AVERROR code - * in case of failure - */ -av_warn_unused_result -int av_buffersrc_add_frame_flags(AVFilterContext *buffer_src, - AVFrame *frame, int flags); - -/** - * Close the buffer source after EOF. - * - * This is similar to passing NULL to av_buffersrc_add_frame_flags() - * except it takes the timestamp of the EOF, i.e. the timestamp of the end - * of the last frame. - */ -int av_buffersrc_close(AVFilterContext *ctx, int64_t pts, unsigned flags); - -/** - * @} - */ - -#endif /* AVFILTER_BUFFERSRC_H */ diff --git a/libs/windows/include/libavfilter/version.h b/libs/windows/include/libavfilter/version.h deleted file mode 100644 index a7be7e64..00000000 --- a/libs/windows/include/libavfilter/version.h +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Version macros. - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFILTER_VERSION_H -#define AVFILTER_VERSION_H - -/** - * @file - * @ingroup lavfi - * Libavfilter version macros - */ - -#include "libavutil/version.h" - -#define LIBAVFILTER_VERSION_MAJOR 7 -#define LIBAVFILTER_VERSION_MINOR 25 -#define LIBAVFILTER_VERSION_MICRO 100 - -#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ - LIBAVFILTER_VERSION_MINOR, \ - LIBAVFILTER_VERSION_MICRO) -#define LIBAVFILTER_VERSION AV_VERSION(LIBAVFILTER_VERSION_MAJOR, \ - LIBAVFILTER_VERSION_MINOR, \ - LIBAVFILTER_VERSION_MICRO) -#define LIBAVFILTER_BUILD LIBAVFILTER_VERSION_INT - -#define LIBAVFILTER_IDENT "Lavfi" AV_STRINGIFY(LIBAVFILTER_VERSION) - -/** - * FF_API_* defines may be placed below to indicate public API that will be - * dropped at a future version bump. The defines themselves are not part of - * the public API and may change, break or disappear at any time. - */ - -#ifndef FF_API_OLD_FILTER_OPTS_ERROR -#define FF_API_OLD_FILTER_OPTS_ERROR (LIBAVFILTER_VERSION_MAJOR < 8) -#endif -#ifndef FF_API_LAVR_OPTS -#define FF_API_LAVR_OPTS (LIBAVFILTER_VERSION_MAJOR < 8) -#endif -#ifndef FF_API_FILTER_GET_SET -#define FF_API_FILTER_GET_SET (LIBAVFILTER_VERSION_MAJOR < 8) -#endif -#ifndef FF_API_NEXT -#define FF_API_NEXT (LIBAVFILTER_VERSION_MAJOR < 8) -#endif - -#endif /* AVFILTER_VERSION_H */ diff --git a/libs/windows/include/libavformat/avformat.h b/libs/windows/include/libavformat/avformat.h deleted file mode 100644 index fdaffa5b..00000000 --- a/libs/windows/include/libavformat/avformat.h +++ /dev/null @@ -1,3085 +0,0 @@ -/* - * copyright (c) 2001 Fabrice Bellard - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFORMAT_AVFORMAT_H -#define AVFORMAT_AVFORMAT_H - -/** - * @file - * @ingroup libavf - * Main libavformat public API header - */ - -/** - * @defgroup libavf libavformat - * I/O and Muxing/Demuxing Library - * - * Libavformat (lavf) is a library for dealing with various media container - * formats. Its main two purposes are demuxing - i.e. splitting a media file - * into component streams, and the reverse process of muxing - writing supplied - * data in a specified container format. It also has an @ref lavf_io - * "I/O module" which supports a number of protocols for accessing the data (e.g. - * file, tcp, http and others). Before using lavf, you need to call - * av_register_all() to register all compiled muxers, demuxers and protocols. - * Unless you are absolutely sure you won't use libavformat's network - * capabilities, you should also call avformat_network_init(). - * - * A supported input format is described by an AVInputFormat struct, conversely - * an output format is described by AVOutputFormat. You can iterate over all - * registered input/output formats using the av_iformat_next() / - * av_oformat_next() functions. The protocols layer is not part of the public - * API, so you can only get the names of supported protocols with the - * avio_enum_protocols() function. - * - * Main lavf structure used for both muxing and demuxing is AVFormatContext, - * which exports all information about the file being read or written. As with - * most Libavformat structures, its size is not part of public ABI, so it cannot be - * allocated on stack or directly with av_malloc(). To create an - * AVFormatContext, use avformat_alloc_context() (some functions, like - * avformat_open_input() might do that for you). - * - * Most importantly an AVFormatContext contains: - * @li the @ref AVFormatContext.iformat "input" or @ref AVFormatContext.oformat - * "output" format. It is either autodetected or set by user for input; - * always set by user for output. - * @li an @ref AVFormatContext.streams "array" of AVStreams, which describe all - * elementary streams stored in the file. AVStreams are typically referred to - * using their index in this array. - * @li an @ref AVFormatContext.pb "I/O context". It is either opened by lavf or - * set by user for input, always set by user for output (unless you are dealing - * with an AVFMT_NOFILE format). - * - * @section lavf_options Passing options to (de)muxers - * It is possible to configure lavf muxers and demuxers using the @ref avoptions - * mechanism. Generic (format-independent) libavformat options are provided by - * AVFormatContext, they can be examined from a user program by calling - * av_opt_next() / av_opt_find() on an allocated AVFormatContext (or its AVClass - * from avformat_get_class()). Private (format-specific) options are provided by - * AVFormatContext.priv_data if and only if AVInputFormat.priv_class / - * AVOutputFormat.priv_class of the corresponding format struct is non-NULL. - * Further options may be provided by the @ref AVFormatContext.pb "I/O context", - * if its AVClass is non-NULL, and the protocols layer. See the discussion on - * nesting in @ref avoptions documentation to learn how to access those. - * - * @section urls - * URL strings in libavformat are made of a scheme/protocol, a ':', and a - * scheme specific string. URLs without a scheme and ':' used for local files - * are supported but deprecated. "file:" should be used for local files. - * - * It is important that the scheme string is not taken from untrusted - * sources without checks. - * - * Note that some schemes/protocols are quite powerful, allowing access to - * both local and remote files, parts of them, concatenations of them, local - * audio and video devices and so on. - * - * @{ - * - * @defgroup lavf_decoding Demuxing - * @{ - * Demuxers read a media file and split it into chunks of data (@em packets). A - * @ref AVPacket "packet" contains one or more encoded frames which belongs to a - * single elementary stream. In the lavf API this process is represented by the - * avformat_open_input() function for opening a file, av_read_frame() for - * reading a single packet and finally avformat_close_input(), which does the - * cleanup. - * - * @section lavf_decoding_open Opening a media file - * The minimum information required to open a file is its URL, which - * is passed to avformat_open_input(), as in the following code: - * @code - * const char *url = "file:in.mp3"; - * AVFormatContext *s = NULL; - * int ret = avformat_open_input(&s, url, NULL, NULL); - * if (ret < 0) - * abort(); - * @endcode - * The above code attempts to allocate an AVFormatContext, open the - * specified file (autodetecting the format) and read the header, exporting the - * information stored there into s. Some formats do not have a header or do not - * store enough information there, so it is recommended that you call the - * avformat_find_stream_info() function which tries to read and decode a few - * frames to find missing information. - * - * In some cases you might want to preallocate an AVFormatContext yourself with - * avformat_alloc_context() and do some tweaking on it before passing it to - * avformat_open_input(). One such case is when you want to use custom functions - * for reading input data instead of lavf internal I/O layer. - * To do that, create your own AVIOContext with avio_alloc_context(), passing - * your reading callbacks to it. Then set the @em pb field of your - * AVFormatContext to newly created AVIOContext. - * - * Since the format of the opened file is in general not known until after - * avformat_open_input() has returned, it is not possible to set demuxer private - * options on a preallocated context. Instead, the options should be passed to - * avformat_open_input() wrapped in an AVDictionary: - * @code - * AVDictionary *options = NULL; - * av_dict_set(&options, "video_size", "640x480", 0); - * av_dict_set(&options, "pixel_format", "rgb24", 0); - * - * if (avformat_open_input(&s, url, NULL, &options) < 0) - * abort(); - * av_dict_free(&options); - * @endcode - * This code passes the private options 'video_size' and 'pixel_format' to the - * demuxer. They would be necessary for e.g. the rawvideo demuxer, since it - * cannot know how to interpret raw video data otherwise. If the format turns - * out to be something different than raw video, those options will not be - * recognized by the demuxer and therefore will not be applied. Such unrecognized - * options are then returned in the options dictionary (recognized options are - * consumed). The calling program can handle such unrecognized options as it - * wishes, e.g. - * @code - * AVDictionaryEntry *e; - * if (e = av_dict_get(options, "", NULL, AV_DICT_IGNORE_SUFFIX)) { - * fprintf(stderr, "Option %s not recognized by the demuxer.\n", e->key); - * abort(); - * } - * @endcode - * - * After you have finished reading the file, you must close it with - * avformat_close_input(). It will free everything associated with the file. - * - * @section lavf_decoding_read Reading from an opened file - * Reading data from an opened AVFormatContext is done by repeatedly calling - * av_read_frame() on it. Each call, if successful, will return an AVPacket - * containing encoded data for one AVStream, identified by - * AVPacket.stream_index. This packet may be passed straight into the libavcodec - * decoding functions avcodec_send_packet() or avcodec_decode_subtitle2() if the - * caller wishes to decode the data. - * - * AVPacket.pts, AVPacket.dts and AVPacket.duration timing information will be - * set if known. They may also be unset (i.e. AV_NOPTS_VALUE for - * pts/dts, 0 for duration) if the stream does not provide them. The timing - * information will be in AVStream.time_base units, i.e. it has to be - * multiplied by the timebase to convert them to seconds. - * - * If AVPacket.buf is set on the returned packet, then the packet is - * allocated dynamically and the user may keep it indefinitely. - * Otherwise, if AVPacket.buf is NULL, the packet data is backed by a - * static storage somewhere inside the demuxer and the packet is only valid - * until the next av_read_frame() call or closing the file. If the caller - * requires a longer lifetime, av_dup_packet() will make an av_malloc()ed copy - * of it. - * In both cases, the packet must be freed with av_packet_unref() when it is no - * longer needed. - * - * @section lavf_decoding_seek Seeking - * @} - * - * @defgroup lavf_encoding Muxing - * @{ - * Muxers take encoded data in the form of @ref AVPacket "AVPackets" and write - * it into files or other output bytestreams in the specified container format. - * - * The main API functions for muxing are avformat_write_header() for writing the - * file header, av_write_frame() / av_interleaved_write_frame() for writing the - * packets and av_write_trailer() for finalizing the file. - * - * At the beginning of the muxing process, the caller must first call - * avformat_alloc_context() to create a muxing context. The caller then sets up - * the muxer by filling the various fields in this context: - * - * - The @ref AVFormatContext.oformat "oformat" field must be set to select the - * muxer that will be used. - * - Unless the format is of the AVFMT_NOFILE type, the @ref AVFormatContext.pb - * "pb" field must be set to an opened IO context, either returned from - * avio_open2() or a custom one. - * - Unless the format is of the AVFMT_NOSTREAMS type, at least one stream must - * be created with the avformat_new_stream() function. The caller should fill - * the @ref AVStream.codecpar "stream codec parameters" information, such as the - * codec @ref AVCodecParameters.codec_type "type", @ref AVCodecParameters.codec_id - * "id" and other parameters (e.g. width / height, the pixel or sample format, - * etc.) as known. The @ref AVStream.time_base "stream timebase" should - * be set to the timebase that the caller desires to use for this stream (note - * that the timebase actually used by the muxer can be different, as will be - * described later). - * - It is advised to manually initialize only the relevant fields in - * AVCodecParameters, rather than using @ref avcodec_parameters_copy() during - * remuxing: there is no guarantee that the codec context values remain valid - * for both input and output format contexts. - * - The caller may fill in additional information, such as @ref - * AVFormatContext.metadata "global" or @ref AVStream.metadata "per-stream" - * metadata, @ref AVFormatContext.chapters "chapters", @ref - * AVFormatContext.programs "programs", etc. as described in the - * AVFormatContext documentation. Whether such information will actually be - * stored in the output depends on what the container format and the muxer - * support. - * - * When the muxing context is fully set up, the caller must call - * avformat_write_header() to initialize the muxer internals and write the file - * header. Whether anything actually is written to the IO context at this step - * depends on the muxer, but this function must always be called. Any muxer - * private options must be passed in the options parameter to this function. - * - * The data is then sent to the muxer by repeatedly calling av_write_frame() or - * av_interleaved_write_frame() (consult those functions' documentation for - * discussion on the difference between them; only one of them may be used with - * a single muxing context, they should not be mixed). Do note that the timing - * information on the packets sent to the muxer must be in the corresponding - * AVStream's timebase. That timebase is set by the muxer (in the - * avformat_write_header() step) and may be different from the timebase - * requested by the caller. - * - * Once all the data has been written, the caller must call av_write_trailer() - * to flush any buffered packets and finalize the output file, then close the IO - * context (if any) and finally free the muxing context with - * avformat_free_context(). - * @} - * - * @defgroup lavf_io I/O Read/Write - * @{ - * @section lavf_io_dirlist Directory listing - * The directory listing API makes it possible to list files on remote servers. - * - * Some of possible use cases: - * - an "open file" dialog to choose files from a remote location, - * - a recursive media finder providing a player with an ability to play all - * files from a given directory. - * - * @subsection lavf_io_dirlist_open Opening a directory - * At first, a directory needs to be opened by calling avio_open_dir() - * supplied with a URL and, optionally, ::AVDictionary containing - * protocol-specific parameters. The function returns zero or positive - * integer and allocates AVIODirContext on success. - * - * @code - * AVIODirContext *ctx = NULL; - * if (avio_open_dir(&ctx, "smb://example.com/some_dir", NULL) < 0) { - * fprintf(stderr, "Cannot open directory.\n"); - * abort(); - * } - * @endcode - * - * This code tries to open a sample directory using smb protocol without - * any additional parameters. - * - * @subsection lavf_io_dirlist_read Reading entries - * Each directory's entry (i.e. file, another directory, anything else - * within ::AVIODirEntryType) is represented by AVIODirEntry. - * Reading consecutive entries from an opened AVIODirContext is done by - * repeatedly calling avio_read_dir() on it. Each call returns zero or - * positive integer if successful. Reading can be stopped right after the - * NULL entry has been read -- it means there are no entries left to be - * read. The following code reads all entries from a directory associated - * with ctx and prints their names to standard output. - * @code - * AVIODirEntry *entry = NULL; - * for (;;) { - * if (avio_read_dir(ctx, &entry) < 0) { - * fprintf(stderr, "Cannot list directory.\n"); - * abort(); - * } - * if (!entry) - * break; - * printf("%s\n", entry->name); - * avio_free_directory_entry(&entry); - * } - * @endcode - * @} - * - * @defgroup lavf_codec Demuxers - * @{ - * @defgroup lavf_codec_native Native Demuxers - * @{ - * @} - * @defgroup lavf_codec_wrappers External library wrappers - * @{ - * @} - * @} - * @defgroup lavf_protos I/O Protocols - * @{ - * @} - * @defgroup lavf_internal Internal - * @{ - * @} - * @} - */ - -#include -#include /* FILE */ -#include "libavcodec/avcodec.h" -#include "libavutil/dict.h" -#include "libavutil/log.h" - -#include "avio.h" -#include "libavformat/version.h" - -struct AVFormatContext; - -struct AVDeviceInfoList; -struct AVDeviceCapabilitiesQuery; - -/** - * @defgroup metadata_api Public Metadata API - * @{ - * @ingroup libavf - * The metadata API allows libavformat to export metadata tags to a client - * application when demuxing. Conversely it allows a client application to - * set metadata when muxing. - * - * Metadata is exported or set as pairs of key/value strings in the 'metadata' - * fields of the AVFormatContext, AVStream, AVChapter and AVProgram structs - * using the @ref lavu_dict "AVDictionary" API. Like all strings in FFmpeg, - * metadata is assumed to be UTF-8 encoded Unicode. Note that metadata - * exported by demuxers isn't checked to be valid UTF-8 in most cases. - * - * Important concepts to keep in mind: - * - Keys are unique; there can never be 2 tags with the same key. This is - * also meant semantically, i.e., a demuxer should not knowingly produce - * several keys that are literally different but semantically identical. - * E.g., key=Author5, key=Author6. In this example, all authors must be - * placed in the same tag. - * - Metadata is flat, not hierarchical; there are no subtags. If you - * want to store, e.g., the email address of the child of producer Alice - * and actor Bob, that could have key=alice_and_bobs_childs_email_address. - * - Several modifiers can be applied to the tag name. This is done by - * appending a dash character ('-') and the modifier name in the order - * they appear in the list below -- e.g. foo-eng-sort, not foo-sort-eng. - * - language -- a tag whose value is localized for a particular language - * is appended with the ISO 639-2/B 3-letter language code. - * For example: Author-ger=Michael, Author-eng=Mike - * The original/default language is in the unqualified "Author" tag. - * A demuxer should set a default if it sets any translated tag. - * - sorting -- a modified version of a tag that should be used for - * sorting will have '-sort' appended. E.g. artist="The Beatles", - * artist-sort="Beatles, The". - * - Some protocols and demuxers support metadata updates. After a successful - * call to av_read_packet(), AVFormatContext.event_flags or AVStream.event_flags - * will be updated to indicate if metadata changed. In order to detect metadata - * changes on a stream, you need to loop through all streams in the AVFormatContext - * and check their individual event_flags. - * - * - Demuxers attempt to export metadata in a generic format, however tags - * with no generic equivalents are left as they are stored in the container. - * Follows a list of generic tag names: - * - @verbatim - album -- name of the set this work belongs to - album_artist -- main creator of the set/album, if different from artist. - e.g. "Various Artists" for compilation albums. - artist -- main creator of the work - comment -- any additional description of the file. - composer -- who composed the work, if different from artist. - copyright -- name of copyright holder. - creation_time-- date when the file was created, preferably in ISO 8601. - date -- date when the work was created, preferably in ISO 8601. - disc -- number of a subset, e.g. disc in a multi-disc collection. - encoder -- name/settings of the software/hardware that produced the file. - encoded_by -- person/group who created the file. - filename -- original name of the file. - genre -- . - language -- main language in which the work is performed, preferably - in ISO 639-2 format. Multiple languages can be specified by - separating them with commas. - performer -- artist who performed the work, if different from artist. - E.g for "Also sprach Zarathustra", artist would be "Richard - Strauss" and performer "London Philharmonic Orchestra". - publisher -- name of the label/publisher. - service_name -- name of the service in broadcasting (channel name). - service_provider -- name of the service provider in broadcasting. - title -- name of the work. - track -- number of this work in the set, can be in form current/total. - variant_bitrate -- the total bitrate of the bitrate variant that the current stream is part of - @endverbatim - * - * Look in the examples section for an application example how to use the Metadata API. - * - * @} - */ - -/* packet functions */ - - -/** - * Allocate and read the payload of a packet and initialize its - * fields with default values. - * - * @param s associated IO context - * @param pkt packet - * @param size desired payload size - * @return >0 (read size) if OK, AVERROR_xxx otherwise - */ -int av_get_packet(AVIOContext *s, AVPacket *pkt, int size); - - -/** - * Read data and append it to the current content of the AVPacket. - * If pkt->size is 0 this is identical to av_get_packet. - * Note that this uses av_grow_packet and thus involves a realloc - * which is inefficient. Thus this function should only be used - * when there is no reasonable way to know (an upper bound of) - * the final size. - * - * @param s associated IO context - * @param pkt packet - * @param size amount of data to read - * @return >0 (read size) if OK, AVERROR_xxx otherwise, previous data - * will not be lost even if an error occurs. - */ -int av_append_packet(AVIOContext *s, AVPacket *pkt, int size); - -/*************************************************/ -/* input/output formats */ - -struct AVCodecTag; - -/** - * This structure contains the data a format has to probe a file. - */ -typedef struct AVProbeData { - const char *filename; - unsigned char *buf; /**< Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero. */ - int buf_size; /**< Size of buf except extra allocated bytes */ - const char *mime_type; /**< mime_type, when known. */ -} AVProbeData; - -#define AVPROBE_SCORE_RETRY (AVPROBE_SCORE_MAX/4) -#define AVPROBE_SCORE_STREAM_RETRY (AVPROBE_SCORE_MAX/4-1) - -#define AVPROBE_SCORE_EXTENSION 50 ///< score for file extension -#define AVPROBE_SCORE_MIME 75 ///< score for file mime type -#define AVPROBE_SCORE_MAX 100 ///< maximum score - -#define AVPROBE_PADDING_SIZE 32 ///< extra allocated bytes at the end of the probe buffer - -/// Demuxer will use avio_open, no opened file should be provided by the caller. -#define AVFMT_NOFILE 0x0001 -#define AVFMT_NEEDNUMBER 0x0002 /**< Needs '%d' in filename. */ -#define AVFMT_SHOW_IDS 0x0008 /**< Show format stream IDs numbers. */ -#define AVFMT_GLOBALHEADER 0x0040 /**< Format wants global header. */ -#define AVFMT_NOTIMESTAMPS 0x0080 /**< Format does not need / have any timestamps. */ -#define AVFMT_GENERIC_INDEX 0x0100 /**< Use generic index building code. */ -#define AVFMT_TS_DISCONT 0x0200 /**< Format allows timestamp discontinuities. Note, muxers always require valid (monotone) timestamps */ -#define AVFMT_VARIABLE_FPS 0x0400 /**< Format allows variable fps. */ -#define AVFMT_NODIMENSIONS 0x0800 /**< Format does not need width/height */ -#define AVFMT_NOSTREAMS 0x1000 /**< Format does not require any streams */ -#define AVFMT_NOBINSEARCH 0x2000 /**< Format does not allow to fall back on binary search via read_timestamp */ -#define AVFMT_NOGENSEARCH 0x4000 /**< Format does not allow to fall back on generic search */ -#define AVFMT_NO_BYTE_SEEK 0x8000 /**< Format does not allow seeking by bytes */ -#define AVFMT_ALLOW_FLUSH 0x10000 /**< Format allows flushing. If not set, the muxer will not receive a NULL packet in the write_packet function. */ -#define AVFMT_TS_NONSTRICT 0x20000 /**< Format does not require strictly - increasing timestamps, but they must - still be monotonic */ -#define AVFMT_TS_NEGATIVE 0x40000 /**< Format allows muxing negative - timestamps. If not set the timestamp - will be shifted in av_write_frame and - av_interleaved_write_frame so they - start from 0. - The user or muxer can override this through - AVFormatContext.avoid_negative_ts - */ - -#define AVFMT_SEEK_TO_PTS 0x4000000 /**< Seeking is based on PTS */ - -/** - * @addtogroup lavf_encoding - * @{ - */ -typedef struct AVOutputFormat { - const char *name; - /** - * Descriptive name for the format, meant to be more human-readable - * than name. You should use the NULL_IF_CONFIG_SMALL() macro - * to define it. - */ - const char *long_name; - const char *mime_type; - const char *extensions; /**< comma-separated filename extensions */ - /* output support */ - enum AVCodecID audio_codec; /**< default audio codec */ - enum AVCodecID video_codec; /**< default video codec */ - enum AVCodecID subtitle_codec; /**< default subtitle codec */ - /** - * can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, - * AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS, - * AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH, - * AVFMT_TS_NONSTRICT, AVFMT_TS_NEGATIVE - */ - int flags; - - /** - * List of supported codec_id-codec_tag pairs, ordered by "better - * choice first". The arrays are all terminated by AV_CODEC_ID_NONE. - */ - const struct AVCodecTag * const *codec_tag; - - - const AVClass *priv_class; ///< AVClass for the private context - - /***************************************************************** - * No fields below this line are part of the public API. They - * may not be used outside of libavformat and can be changed and - * removed at will. - * New public fields should be added right above. - ***************************************************************** - */ - struct AVOutputFormat *next; - /** - * size of private data so that it can be allocated in the wrapper - */ - int priv_data_size; - - int (*write_header)(struct AVFormatContext *); - /** - * Write a packet. If AVFMT_ALLOW_FLUSH is set in flags, - * pkt can be NULL in order to flush data buffered in the muxer. - * When flushing, return 0 if there still is more data to flush, - * or 1 if everything was flushed and there is no more buffered - * data. - */ - int (*write_packet)(struct AVFormatContext *, AVPacket *pkt); - int (*write_trailer)(struct AVFormatContext *); - /** - * Currently only used to set pixel format if not YUV420P. - */ - int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, - AVPacket *in, int flush); - /** - * Test if the given codec can be stored in this container. - * - * @return 1 if the codec is supported, 0 if it is not. - * A negative number if unknown. - * MKTAG('A', 'P', 'I', 'C') if the codec is only supported as AV_DISPOSITION_ATTACHED_PIC - */ - int (*query_codec)(enum AVCodecID id, int std_compliance); - - void (*get_output_timestamp)(struct AVFormatContext *s, int stream, - int64_t *dts, int64_t *wall); - /** - * Allows sending messages from application to device. - */ - int (*control_message)(struct AVFormatContext *s, int type, - void *data, size_t data_size); - - /** - * Write an uncoded AVFrame. - * - * See av_write_uncoded_frame() for details. - * - * The library will free *frame afterwards, but the muxer can prevent it - * by setting the pointer to NULL. - */ - int (*write_uncoded_frame)(struct AVFormatContext *, int stream_index, - AVFrame **frame, unsigned flags); - /** - * Returns device list with it properties. - * @see avdevice_list_devices() for more details. - */ - int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list); - /** - * Initialize device capabilities submodule. - * @see avdevice_capabilities_create() for more details. - */ - int (*create_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps); - /** - * Free device capabilities submodule. - * @see avdevice_capabilities_free() for more details. - */ - int (*free_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps); - enum AVCodecID data_codec; /**< default data codec */ - /** - * Initialize format. May allocate data here, and set any AVFormatContext or - * AVStream parameters that need to be set before packets are sent. - * This method must not write output. - * - * Return 0 if streams were fully configured, 1 if not, negative AVERROR on failure - * - * Any allocations made here must be freed in deinit(). - */ - int (*init)(struct AVFormatContext *); - /** - * Deinitialize format. If present, this is called whenever the muxer is being - * destroyed, regardless of whether or not the header has been written. - * - * If a trailer is being written, this is called after write_trailer(). - * - * This is called if init() fails as well. - */ - void (*deinit)(struct AVFormatContext *); - /** - * Set up any necessary bitstream filtering and extract any extra data needed - * for the global header. - * Return 0 if more packets from this stream must be checked; 1 if not. - */ - int (*check_bitstream)(struct AVFormatContext *, const AVPacket *pkt); -} AVOutputFormat; -/** - * @} - */ - -/** - * @addtogroup lavf_decoding - * @{ - */ -typedef struct AVInputFormat { - /** - * A comma separated list of short names for the format. New names - * may be appended with a minor bump. - */ - const char *name; - - /** - * Descriptive name for the format, meant to be more human-readable - * than name. You should use the NULL_IF_CONFIG_SMALL() macro - * to define it. - */ - const char *long_name; - - /** - * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS, - * AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH, - * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK, AVFMT_SEEK_TO_PTS. - */ - int flags; - - /** - * If extensions are defined, then no probe is done. You should - * usually not use extension format guessing because it is not - * reliable enough - */ - const char *extensions; - - const struct AVCodecTag * const *codec_tag; - - const AVClass *priv_class; ///< AVClass for the private context - - /** - * Comma-separated list of mime types. - * It is used check for matching mime types while probing. - * @see av_probe_input_format2 - */ - const char *mime_type; - - /***************************************************************** - * No fields below this line are part of the public API. They - * may not be used outside of libavformat and can be changed and - * removed at will. - * New public fields should be added right above. - ***************************************************************** - */ - struct AVInputFormat *next; - - /** - * Raw demuxers store their codec ID here. - */ - int raw_codec_id; - - /** - * Size of private data so that it can be allocated in the wrapper. - */ - int priv_data_size; - - /** - * Tell if a given file has a chance of being parsed as this format. - * The buffer provided is guaranteed to be AVPROBE_PADDING_SIZE bytes - * big so you do not have to check for that unless you need more. - */ - int (*read_probe)(AVProbeData *); - - /** - * Read the format header and initialize the AVFormatContext - * structure. Return 0 if OK. 'avformat_new_stream' should be - * called to create new streams. - */ - int (*read_header)(struct AVFormatContext *); - - /** - * Read one packet and put it in 'pkt'. pts and flags are also - * set. 'avformat_new_stream' can be called only if the flag - * AVFMTCTX_NOHEADER is used and only in the calling thread (not in a - * background thread). - * @return 0 on success, < 0 on error. - * When returning an error, pkt must not have been allocated - * or must be freed before returning - */ - int (*read_packet)(struct AVFormatContext *, AVPacket *pkt); - - /** - * Close the stream. The AVFormatContext and AVStreams are not - * freed by this function - */ - int (*read_close)(struct AVFormatContext *); - - /** - * Seek to a given timestamp relative to the frames in - * stream component stream_index. - * @param stream_index Must not be -1. - * @param flags Selects which direction should be preferred if no exact - * match is available. - * @return >= 0 on success (but not necessarily the new offset) - */ - int (*read_seek)(struct AVFormatContext *, - int stream_index, int64_t timestamp, int flags); - - /** - * Get the next timestamp in stream[stream_index].time_base units. - * @return the timestamp or AV_NOPTS_VALUE if an error occurred - */ - int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index, - int64_t *pos, int64_t pos_limit); - - /** - * Start/resume playing - only meaningful if using a network-based format - * (RTSP). - */ - int (*read_play)(struct AVFormatContext *); - - /** - * Pause playing - only meaningful if using a network-based format - * (RTSP). - */ - int (*read_pause)(struct AVFormatContext *); - - /** - * Seek to timestamp ts. - * Seeking will be done so that the point from which all active streams - * can be presented successfully will be closest to ts and within min/max_ts. - * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL. - */ - int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags); - - /** - * Returns device list with it properties. - * @see avdevice_list_devices() for more details. - */ - int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list); - - /** - * Initialize device capabilities submodule. - * @see avdevice_capabilities_create() for more details. - */ - int (*create_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps); - - /** - * Free device capabilities submodule. - * @see avdevice_capabilities_free() for more details. - */ - int (*free_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps); -} AVInputFormat; -/** - * @} - */ - -enum AVStreamParseType { - AVSTREAM_PARSE_NONE, - AVSTREAM_PARSE_FULL, /**< full parsing and repack */ - AVSTREAM_PARSE_HEADERS, /**< Only parse headers, do not repack. */ - AVSTREAM_PARSE_TIMESTAMPS, /**< full parsing and interpolation of timestamps for frames not starting on a packet boundary */ - AVSTREAM_PARSE_FULL_ONCE, /**< full parsing and repack of the first frame only, only implemented for H.264 currently */ - AVSTREAM_PARSE_FULL_RAW, /**< full parsing and repack with timestamp and position generation by parser for raw - this assumes that each packet in the file contains no demuxer level headers and - just codec level data, otherwise position generation would fail */ -}; - -typedef struct AVIndexEntry { - int64_t pos; - int64_t timestamp; /**< - * Timestamp in AVStream.time_base units, preferably the time from which on correctly decoded frames are available - * when seeking to this entry. That means preferable PTS on keyframe based formats. - * But demuxers can choose to store a different timestamp, if it is more convenient for the implementation or nothing better - * is known - */ -#define AVINDEX_KEYFRAME 0x0001 -#define AVINDEX_DISCARD_FRAME 0x0002 /** - * Flag is used to indicate which frame should be discarded after decoding. - */ - int flags:2; - int size:30; //Yeah, trying to keep the size of this small to reduce memory requirements (it is 24 vs. 32 bytes due to possible 8-byte alignment). - int min_distance; /**< Minimum distance between this and the previous keyframe, used to avoid unneeded searching. */ -} AVIndexEntry; - -#define AV_DISPOSITION_DEFAULT 0x0001 -#define AV_DISPOSITION_DUB 0x0002 -#define AV_DISPOSITION_ORIGINAL 0x0004 -#define AV_DISPOSITION_COMMENT 0x0008 -#define AV_DISPOSITION_LYRICS 0x0010 -#define AV_DISPOSITION_KARAOKE 0x0020 - -/** - * Track should be used during playback by default. - * Useful for subtitle track that should be displayed - * even when user did not explicitly ask for subtitles. - */ -#define AV_DISPOSITION_FORCED 0x0040 -#define AV_DISPOSITION_HEARING_IMPAIRED 0x0080 /**< stream for hearing impaired audiences */ -#define AV_DISPOSITION_VISUAL_IMPAIRED 0x0100 /**< stream for visual impaired audiences */ -#define AV_DISPOSITION_CLEAN_EFFECTS 0x0200 /**< stream without voice */ -/** - * The stream is stored in the file as an attached picture/"cover art" (e.g. - * APIC frame in ID3v2). The first (usually only) packet associated with it - * will be returned among the first few packets read from the file unless - * seeking takes place. It can also be accessed at any time in - * AVStream.attached_pic. - */ -#define AV_DISPOSITION_ATTACHED_PIC 0x0400 -/** - * The stream is sparse, and contains thumbnail images, often corresponding - * to chapter markers. Only ever used with AV_DISPOSITION_ATTACHED_PIC. - */ -#define AV_DISPOSITION_TIMED_THUMBNAILS 0x0800 - -typedef struct AVStreamInternal AVStreamInternal; - -/** - * To specify text track kind (different from subtitles default). - */ -#define AV_DISPOSITION_CAPTIONS 0x10000 -#define AV_DISPOSITION_DESCRIPTIONS 0x20000 -#define AV_DISPOSITION_METADATA 0x40000 -#define AV_DISPOSITION_DEPENDENT 0x80000 ///< dependent audio stream (mix_type=0 in mpegts) -#define AV_DISPOSITION_STILL_IMAGE 0x100000 ///< still images in video stream (still_picture_flag=1 in mpegts) - -/** - * Options for behavior on timestamp wrap detection. - */ -#define AV_PTS_WRAP_IGNORE 0 ///< ignore the wrap -#define AV_PTS_WRAP_ADD_OFFSET 1 ///< add the format specific offset on wrap detection -#define AV_PTS_WRAP_SUB_OFFSET -1 ///< subtract the format specific offset on wrap detection - -/** - * Stream structure. - * New fields can be added to the end with minor version bumps. - * Removal, reordering and changes to existing fields require a major - * version bump. - * sizeof(AVStream) must not be used outside libav*. - */ -typedef struct AVStream { - int index; /**< stream index in AVFormatContext */ - /** - * Format-specific stream ID. - * decoding: set by libavformat - * encoding: set by the user, replaced by libavformat if left unset - */ - int id; -#if FF_API_LAVF_AVCTX - /** - * @deprecated use the codecpar struct instead - */ - attribute_deprecated - AVCodecContext *codec; -#endif - void *priv_data; - - /** - * This is the fundamental unit of time (in seconds) in terms - * of which frame timestamps are represented. - * - * decoding: set by libavformat - * encoding: May be set by the caller before avformat_write_header() to - * provide a hint to the muxer about the desired timebase. In - * avformat_write_header(), the muxer will overwrite this field - * with the timebase that will actually be used for the timestamps - * written into the file (which may or may not be related to the - * user-provided one, depending on the format). - */ - AVRational time_base; - - /** - * Decoding: pts of the first frame of the stream in presentation order, in stream time base. - * Only set this if you are absolutely 100% sure that the value you set - * it to really is the pts of the first frame. - * This may be undefined (AV_NOPTS_VALUE). - * @note The ASF header does NOT contain a correct start_time the ASF - * demuxer must NOT set this. - */ - int64_t start_time; - - /** - * Decoding: duration of the stream, in stream time base. - * If a source file does not specify a duration, but does specify - * a bitrate, this value will be estimated from bitrate and file size. - * - * Encoding: May be set by the caller before avformat_write_header() to - * provide a hint to the muxer about the estimated duration. - */ - int64_t duration; - - int64_t nb_frames; ///< number of frames in this stream if known or 0 - - int disposition; /**< AV_DISPOSITION_* bit field */ - - enum AVDiscard discard; ///< Selects which packets can be discarded at will and do not need to be demuxed. - - /** - * sample aspect ratio (0 if unknown) - * - encoding: Set by user. - * - decoding: Set by libavformat. - */ - AVRational sample_aspect_ratio; - - AVDictionary *metadata; - - /** - * Average framerate - * - * - demuxing: May be set by libavformat when creating the stream or in - * avformat_find_stream_info(). - * - muxing: May be set by the caller before avformat_write_header(). - */ - AVRational avg_frame_rate; - - /** - * For streams with AV_DISPOSITION_ATTACHED_PIC disposition, this packet - * will contain the attached picture. - * - * decoding: set by libavformat, must not be modified by the caller. - * encoding: unused - */ - AVPacket attached_pic; - - /** - * An array of side data that applies to the whole stream (i.e. the - * container does not allow it to change between packets). - * - * There may be no overlap between the side data in this array and side data - * in the packets. I.e. a given side data is either exported by the muxer - * (demuxing) / set by the caller (muxing) in this array, then it never - * appears in the packets, or the side data is exported / sent through - * the packets (always in the first packet where the value becomes known or - * changes), then it does not appear in this array. - * - * - demuxing: Set by libavformat when the stream is created. - * - muxing: May be set by the caller before avformat_write_header(). - * - * Freed by libavformat in avformat_free_context(). - * - * @see av_format_inject_global_side_data() - */ - AVPacketSideData *side_data; - /** - * The number of elements in the AVStream.side_data array. - */ - int nb_side_data; - - /** - * Flags for the user to detect events happening on the stream. Flags must - * be cleared by the user once the event has been handled. - * A combination of AVSTREAM_EVENT_FLAG_*. - */ - int event_flags; -#define AVSTREAM_EVENT_FLAG_METADATA_UPDATED 0x0001 ///< The call resulted in updated metadata. - - /** - * Real base framerate of the stream. - * This is the lowest framerate with which all timestamps can be - * represented accurately (it is the least common multiple of all - * framerates in the stream). Note, this value is just a guess! - * For example, if the time base is 1/90000 and all frames have either - * approximately 3600 or 1800 timer ticks, then r_frame_rate will be 50/1. - */ - AVRational r_frame_rate; - -#if FF_API_LAVF_FFSERVER - /** - * String containing pairs of key and values describing recommended encoder configuration. - * Pairs are separated by ','. - * Keys are separated from values by '='. - * - * @deprecated unused - */ - attribute_deprecated - char *recommended_encoder_configuration; -#endif - - /** - * Codec parameters associated with this stream. Allocated and freed by - * libavformat in avformat_new_stream() and avformat_free_context() - * respectively. - * - * - demuxing: filled by libavformat on stream creation or in - * avformat_find_stream_info() - * - muxing: filled by the caller before avformat_write_header() - */ - AVCodecParameters *codecpar; - - /***************************************************************** - * All fields below this line are not part of the public API. They - * may not be used outside of libavformat and can be changed and - * removed at will. - * Internal note: be aware that physically removing these fields - * will break ABI. Replace removed fields with dummy fields, and - * add new fields to AVStreamInternal. - ***************************************************************** - */ - -#define MAX_STD_TIMEBASES (30*12+30+3+6) - /** - * Stream information used internally by avformat_find_stream_info() - */ - struct { - int64_t last_dts; - int64_t duration_gcd; - int duration_count; - int64_t rfps_duration_sum; - double (*duration_error)[2][MAX_STD_TIMEBASES]; - int64_t codec_info_duration; - int64_t codec_info_duration_fields; - int frame_delay_evidence; - - /** - * 0 -> decoder has not been searched for yet. - * >0 -> decoder found - * <0 -> decoder with codec_id == -found_decoder has not been found - */ - int found_decoder; - - int64_t last_duration; - - /** - * Those are used for average framerate estimation. - */ - int64_t fps_first_dts; - int fps_first_dts_idx; - int64_t fps_last_dts; - int fps_last_dts_idx; - - } *info; - - int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */ - - // Timestamp generation support: - /** - * Timestamp corresponding to the last dts sync point. - * - * Initialized when AVCodecParserContext.dts_sync_point >= 0 and - * a DTS is received from the underlying container. Otherwise set to - * AV_NOPTS_VALUE by default. - */ - int64_t first_dts; - int64_t cur_dts; - int64_t last_IP_pts; - int last_IP_duration; - - /** - * Number of packets to buffer for codec probing - */ - int probe_packets; - - /** - * Number of frames that have been demuxed during avformat_find_stream_info() - */ - int codec_info_nb_frames; - - /* av_read_frame() support */ - enum AVStreamParseType need_parsing; - struct AVCodecParserContext *parser; - - /** - * last packet in packet_buffer for this stream when muxing. - */ - struct AVPacketList *last_in_packet_buffer; - AVProbeData probe_data; -#define MAX_REORDER_DELAY 16 - int64_t pts_buffer[MAX_REORDER_DELAY+1]; - - AVIndexEntry *index_entries; /**< Only used if the format does not - support seeking natively. */ - int nb_index_entries; - unsigned int index_entries_allocated_size; - - /** - * Stream Identifier - * This is the MPEG-TS stream identifier +1 - * 0 means unknown - */ - int stream_identifier; - - /** - * Details of the MPEG-TS program which created this stream. - */ - int program_num; - int pmt_version; - int pmt_stream_idx; - - int64_t interleaver_chunk_size; - int64_t interleaver_chunk_duration; - - /** - * stream probing state - * -1 -> probing finished - * 0 -> no probing requested - * rest -> perform probing with request_probe being the minimum score to accept. - * NOT PART OF PUBLIC API - */ - int request_probe; - /** - * Indicates that everything up to the next keyframe - * should be discarded. - */ - int skip_to_keyframe; - - /** - * Number of samples to skip at the start of the frame decoded from the next packet. - */ - int skip_samples; - - /** - * If not 0, the number of samples that should be skipped from the start of - * the stream (the samples are removed from packets with pts==0, which also - * assumes negative timestamps do not happen). - * Intended for use with formats such as mp3 with ad-hoc gapless audio - * support. - */ - int64_t start_skip_samples; - - /** - * If not 0, the first audio sample that should be discarded from the stream. - * This is broken by design (needs global sample count), but can't be - * avoided for broken by design formats such as mp3 with ad-hoc gapless - * audio support. - */ - int64_t first_discard_sample; - - /** - * The sample after last sample that is intended to be discarded after - * first_discard_sample. Works on frame boundaries only. Used to prevent - * early EOF if the gapless info is broken (considered concatenated mp3s). - */ - int64_t last_discard_sample; - - /** - * Number of internally decoded frames, used internally in libavformat, do not access - * its lifetime differs from info which is why it is not in that structure. - */ - int nb_decoded_frames; - - /** - * Timestamp offset added to timestamps before muxing - * NOT PART OF PUBLIC API - */ - int64_t mux_ts_offset; - - /** - * Internal data to check for wrapping of the time stamp - */ - int64_t pts_wrap_reference; - - /** - * Options for behavior, when a wrap is detected. - * - * Defined by AV_PTS_WRAP_ values. - * - * If correction is enabled, there are two possibilities: - * If the first time stamp is near the wrap point, the wrap offset - * will be subtracted, which will create negative time stamps. - * Otherwise the offset will be added. - */ - int pts_wrap_behavior; - - /** - * Internal data to prevent doing update_initial_durations() twice - */ - int update_initial_durations_done; - - /** - * Internal data to generate dts from pts - */ - int64_t pts_reorder_error[MAX_REORDER_DELAY+1]; - uint8_t pts_reorder_error_count[MAX_REORDER_DELAY+1]; - - /** - * Internal data to analyze DTS and detect faulty mpeg streams - */ - int64_t last_dts_for_order_check; - uint8_t dts_ordered; - uint8_t dts_misordered; - - /** - * Internal data to inject global side data - */ - int inject_global_side_data; - - /** - * display aspect ratio (0 if unknown) - * - encoding: unused - * - decoding: Set by libavformat to calculate sample_aspect_ratio internally - */ - AVRational display_aspect_ratio; - - /** - * An opaque field for libavformat internal usage. - * Must not be accessed in any way by callers. - */ - AVStreamInternal *internal; -} AVStream; - -#if FF_API_FORMAT_GET_SET -/** - * Accessors for some AVStream fields. These used to be provided for ABI - * compatibility, and do not need to be used anymore. - */ -attribute_deprecated -AVRational av_stream_get_r_frame_rate(const AVStream *s); -attribute_deprecated -void av_stream_set_r_frame_rate(AVStream *s, AVRational r); -#if FF_API_LAVF_FFSERVER -attribute_deprecated -char* av_stream_get_recommended_encoder_configuration(const AVStream *s); -attribute_deprecated -void av_stream_set_recommended_encoder_configuration(AVStream *s, char *configuration); -#endif -#endif - -struct AVCodecParserContext *av_stream_get_parser(const AVStream *s); - -/** - * Returns the pts of the last muxed packet + its duration - * - * the retuned value is undefined when used with a demuxer. - */ -int64_t av_stream_get_end_pts(const AVStream *st); - -#define AV_PROGRAM_RUNNING 1 - -/** - * New fields can be added to the end with minor version bumps. - * Removal, reordering and changes to existing fields require a major - * version bump. - * sizeof(AVProgram) must not be used outside libav*. - */ -typedef struct AVProgram { - int id; - int flags; - enum AVDiscard discard; ///< selects which program to discard and which to feed to the caller - unsigned int *stream_index; - unsigned int nb_stream_indexes; - AVDictionary *metadata; - - int program_num; - int pmt_pid; - int pcr_pid; - int pmt_version; - - /***************************************************************** - * All fields below this line are not part of the public API. They - * may not be used outside of libavformat and can be changed and - * removed at will. - * New public fields should be added right above. - ***************************************************************** - */ - int64_t start_time; - int64_t end_time; - - int64_t pts_wrap_reference; ///< reference dts for wrap detection - int pts_wrap_behavior; ///< behavior on wrap detection -} AVProgram; - -#define AVFMTCTX_NOHEADER 0x0001 /**< signal that no header is present - (streams are added dynamically) */ -#define AVFMTCTX_UNSEEKABLE 0x0002 /**< signal that the stream is definitely - not seekable, and attempts to call the - seek function will fail. For some - network protocols (e.g. HLS), this can - change dynamically at runtime. */ - -typedef struct AVChapter { - int id; ///< unique ID to identify the chapter - AVRational time_base; ///< time base in which the start/end timestamps are specified - int64_t start, end; ///< chapter start/end time in time_base units - AVDictionary *metadata; -} AVChapter; - - -/** - * Callback used by devices to communicate with application. - */ -typedef int (*av_format_control_message)(struct AVFormatContext *s, int type, - void *data, size_t data_size); - -typedef int (*AVOpenCallback)(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags, - const AVIOInterruptCB *int_cb, AVDictionary **options); - -/** - * The duration of a video can be estimated through various ways, and this enum can be used - * to know how the duration was estimated. - */ -enum AVDurationEstimationMethod { - AVFMT_DURATION_FROM_PTS, ///< Duration accurately estimated from PTSes - AVFMT_DURATION_FROM_STREAM, ///< Duration estimated from a stream with a known duration - AVFMT_DURATION_FROM_BITRATE ///< Duration estimated from bitrate (less accurate) -}; - -typedef struct AVFormatInternal AVFormatInternal; - -/** - * Format I/O context. - * New fields can be added to the end with minor version bumps. - * Removal, reordering and changes to existing fields require a major - * version bump. - * sizeof(AVFormatContext) must not be used outside libav*, use - * avformat_alloc_context() to create an AVFormatContext. - * - * Fields can be accessed through AVOptions (av_opt*), - * the name string used matches the associated command line parameter name and - * can be found in libavformat/options_table.h. - * The AVOption/command line parameter names differ in some cases from the C - * structure field names for historic reasons or brevity. - */ -typedef struct AVFormatContext { - /** - * A class for logging and @ref avoptions. Set by avformat_alloc_context(). - * Exports (de)muxer private options if they exist. - */ - const AVClass *av_class; - - /** - * The input container format. - * - * Demuxing only, set by avformat_open_input(). - */ - struct AVInputFormat *iformat; - - /** - * The output container format. - * - * Muxing only, must be set by the caller before avformat_write_header(). - */ - struct AVOutputFormat *oformat; - - /** - * Format private data. This is an AVOptions-enabled struct - * if and only if iformat/oformat.priv_class is not NULL. - * - * - muxing: set by avformat_write_header() - * - demuxing: set by avformat_open_input() - */ - void *priv_data; - - /** - * I/O context. - * - * - demuxing: either set by the user before avformat_open_input() (then - * the user must close it manually) or set by avformat_open_input(). - * - muxing: set by the user before avformat_write_header(). The caller must - * take care of closing / freeing the IO context. - * - * Do NOT set this field if AVFMT_NOFILE flag is set in - * iformat/oformat.flags. In such a case, the (de)muxer will handle - * I/O in some other way and this field will be NULL. - */ - AVIOContext *pb; - - /* stream info */ - /** - * Flags signalling stream properties. A combination of AVFMTCTX_*. - * Set by libavformat. - */ - int ctx_flags; - - /** - * Number of elements in AVFormatContext.streams. - * - * Set by avformat_new_stream(), must not be modified by any other code. - */ - unsigned int nb_streams; - /** - * A list of all streams in the file. New streams are created with - * avformat_new_stream(). - * - * - demuxing: streams are created by libavformat in avformat_open_input(). - * If AVFMTCTX_NOHEADER is set in ctx_flags, then new streams may also - * appear in av_read_frame(). - * - muxing: streams are created by the user before avformat_write_header(). - * - * Freed by libavformat in avformat_free_context(). - */ - AVStream **streams; - -#if FF_API_FORMAT_FILENAME - /** - * input or output filename - * - * - demuxing: set by avformat_open_input() - * - muxing: may be set by the caller before avformat_write_header() - * - * @deprecated Use url instead. - */ - attribute_deprecated - char filename[1024]; -#endif - - /** - * input or output URL. Unlike the old filename field, this field has no - * length restriction. - * - * - demuxing: set by avformat_open_input(), initialized to an empty - * string if url parameter was NULL in avformat_open_input(). - * - muxing: may be set by the caller before calling avformat_write_header() - * (or avformat_init_output() if that is called first) to a string - * which is freeable by av_free(). Set to an empty string if it - * was NULL in avformat_init_output(). - * - * Freed by libavformat in avformat_free_context(). - */ - char *url; - - /** - * Position of the first frame of the component, in - * AV_TIME_BASE fractional seconds. NEVER set this value directly: - * It is deduced from the AVStream values. - * - * Demuxing only, set by libavformat. - */ - int64_t start_time; - - /** - * Duration of the stream, in AV_TIME_BASE fractional - * seconds. Only set this value if you know none of the individual stream - * durations and also do not set any of them. This is deduced from the - * AVStream values if not set. - * - * Demuxing only, set by libavformat. - */ - int64_t duration; - - /** - * Total stream bitrate in bit/s, 0 if not - * available. Never set it directly if the file_size and the - * duration are known as FFmpeg can compute it automatically. - */ - int64_t bit_rate; - - unsigned int packet_size; - int max_delay; - - /** - * Flags modifying the (de)muxer behaviour. A combination of AVFMT_FLAG_*. - * Set by the user before avformat_open_input() / avformat_write_header(). - */ - int flags; -#define AVFMT_FLAG_GENPTS 0x0001 ///< Generate missing pts even if it requires parsing future frames. -#define AVFMT_FLAG_IGNIDX 0x0002 ///< Ignore index. -#define AVFMT_FLAG_NONBLOCK 0x0004 ///< Do not block when reading packets from input. -#define AVFMT_FLAG_IGNDTS 0x0008 ///< Ignore DTS on frames that contain both DTS & PTS -#define AVFMT_FLAG_NOFILLIN 0x0010 ///< Do not infer any values from other values, just return what is stored in the container -#define AVFMT_FLAG_NOPARSE 0x0020 ///< Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled -#define AVFMT_FLAG_NOBUFFER 0x0040 ///< Do not buffer frames when possible -#define AVFMT_FLAG_CUSTOM_IO 0x0080 ///< The caller has supplied a custom AVIOContext, don't avio_close() it. -#define AVFMT_FLAG_DISCARD_CORRUPT 0x0100 ///< Discard frames marked corrupted -#define AVFMT_FLAG_FLUSH_PACKETS 0x0200 ///< Flush the AVIOContext every packet. -/** - * When muxing, try to avoid writing any random/volatile data to the output. - * This includes any random IDs, real-time timestamps/dates, muxer version, etc. - * - * This flag is mainly intended for testing. - */ -#define AVFMT_FLAG_BITEXACT 0x0400 -#if FF_API_LAVF_MP4A_LATM -#define AVFMT_FLAG_MP4A_LATM 0x8000 ///< Deprecated, does nothing. -#endif -#define AVFMT_FLAG_SORT_DTS 0x10000 ///< try to interleave outputted packets by dts (using this flag can slow demuxing down) -#define AVFMT_FLAG_PRIV_OPT 0x20000 ///< Enable use of private options by delaying codec open (this could be made default once all code is converted) -#if FF_API_LAVF_KEEPSIDE_FLAG -#define AVFMT_FLAG_KEEP_SIDE_DATA 0x40000 ///< Deprecated, does nothing. -#endif -#define AVFMT_FLAG_FAST_SEEK 0x80000 ///< Enable fast, but inaccurate seeks for some formats -#define AVFMT_FLAG_SHORTEST 0x100000 ///< Stop muxing when the shortest stream stops. -#define AVFMT_FLAG_AUTO_BSF 0x200000 ///< Add bitstream filters as requested by the muxer - - /** - * Maximum size of the data read from input for determining - * the input container format. - * Demuxing only, set by the caller before avformat_open_input(). - */ - int64_t probesize; - - /** - * Maximum duration (in AV_TIME_BASE units) of the data read - * from input in avformat_find_stream_info(). - * Demuxing only, set by the caller before avformat_find_stream_info(). - * Can be set to 0 to let avformat choose using a heuristic. - */ - int64_t max_analyze_duration; - - const uint8_t *key; - int keylen; - - unsigned int nb_programs; - AVProgram **programs; - - /** - * Forced video codec_id. - * Demuxing: Set by user. - */ - enum AVCodecID video_codec_id; - - /** - * Forced audio codec_id. - * Demuxing: Set by user. - */ - enum AVCodecID audio_codec_id; - - /** - * Forced subtitle codec_id. - * Demuxing: Set by user. - */ - enum AVCodecID subtitle_codec_id; - - /** - * Maximum amount of memory in bytes to use for the index of each stream. - * If the index exceeds this size, entries will be discarded as - * needed to maintain a smaller size. This can lead to slower or less - * accurate seeking (depends on demuxer). - * Demuxers for which a full in-memory index is mandatory will ignore - * this. - * - muxing: unused - * - demuxing: set by user - */ - unsigned int max_index_size; - - /** - * Maximum amount of memory in bytes to use for buffering frames - * obtained from realtime capture devices. - */ - unsigned int max_picture_buffer; - - /** - * Number of chapters in AVChapter array. - * When muxing, chapters are normally written in the file header, - * so nb_chapters should normally be initialized before write_header - * is called. Some muxers (e.g. mov and mkv) can also write chapters - * in the trailer. To write chapters in the trailer, nb_chapters - * must be zero when write_header is called and non-zero when - * write_trailer is called. - * - muxing: set by user - * - demuxing: set by libavformat - */ - unsigned int nb_chapters; - AVChapter **chapters; - - /** - * Metadata that applies to the whole file. - * - * - demuxing: set by libavformat in avformat_open_input() - * - muxing: may be set by the caller before avformat_write_header() - * - * Freed by libavformat in avformat_free_context(). - */ - AVDictionary *metadata; - - /** - * Start time of the stream in real world time, in microseconds - * since the Unix epoch (00:00 1st January 1970). That is, pts=0 in the - * stream was captured at this real world time. - * - muxing: Set by the caller before avformat_write_header(). If set to - * either 0 or AV_NOPTS_VALUE, then the current wall-time will - * be used. - * - demuxing: Set by libavformat. AV_NOPTS_VALUE if unknown. Note that - * the value may become known after some number of frames - * have been received. - */ - int64_t start_time_realtime; - - /** - * The number of frames used for determining the framerate in - * avformat_find_stream_info(). - * Demuxing only, set by the caller before avformat_find_stream_info(). - */ - int fps_probe_size; - - /** - * Error recognition; higher values will detect more errors but may - * misdetect some more or less valid parts as errors. - * Demuxing only, set by the caller before avformat_open_input(). - */ - int error_recognition; - - /** - * Custom interrupt callbacks for the I/O layer. - * - * demuxing: set by the user before avformat_open_input(). - * muxing: set by the user before avformat_write_header() - * (mainly useful for AVFMT_NOFILE formats). The callback - * should also be passed to avio_open2() if it's used to - * open the file. - */ - AVIOInterruptCB interrupt_callback; - - /** - * Flags to enable debugging. - */ - int debug; -#define FF_FDEBUG_TS 0x0001 - - /** - * Maximum buffering duration for interleaving. - * - * To ensure all the streams are interleaved correctly, - * av_interleaved_write_frame() will wait until it has at least one packet - * for each stream before actually writing any packets to the output file. - * When some streams are "sparse" (i.e. there are large gaps between - * successive packets), this can result in excessive buffering. - * - * This field specifies the maximum difference between the timestamps of the - * first and the last packet in the muxing queue, above which libavformat - * will output a packet regardless of whether it has queued a packet for all - * the streams. - * - * Muxing only, set by the caller before avformat_write_header(). - */ - int64_t max_interleave_delta; - - /** - * Allow non-standard and experimental extension - * @see AVCodecContext.strict_std_compliance - */ - int strict_std_compliance; - - /** - * Flags for the user to detect events happening on the file. Flags must - * be cleared by the user once the event has been handled. - * A combination of AVFMT_EVENT_FLAG_*. - */ - int event_flags; -#define AVFMT_EVENT_FLAG_METADATA_UPDATED 0x0001 ///< The call resulted in updated metadata. - - /** - * Maximum number of packets to read while waiting for the first timestamp. - * Decoding only. - */ - int max_ts_probe; - - /** - * Avoid negative timestamps during muxing. - * Any value of the AVFMT_AVOID_NEG_TS_* constants. - * Note, this only works when using av_interleaved_write_frame. (interleave_packet_per_dts is in use) - * - muxing: Set by user - * - demuxing: unused - */ - int avoid_negative_ts; -#define AVFMT_AVOID_NEG_TS_AUTO -1 ///< Enabled when required by target format -#define AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE 1 ///< Shift timestamps so they are non negative -#define AVFMT_AVOID_NEG_TS_MAKE_ZERO 2 ///< Shift timestamps so that they start at 0 - - /** - * Transport stream id. - * This will be moved into demuxer private options. Thus no API/ABI compatibility - */ - int ts_id; - - /** - * Audio preload in microseconds. - * Note, not all formats support this and unpredictable things may happen if it is used when not supported. - * - encoding: Set by user - * - decoding: unused - */ - int audio_preload; - - /** - * Max chunk time in microseconds. - * Note, not all formats support this and unpredictable things may happen if it is used when not supported. - * - encoding: Set by user - * - decoding: unused - */ - int max_chunk_duration; - - /** - * Max chunk size in bytes - * Note, not all formats support this and unpredictable things may happen if it is used when not supported. - * - encoding: Set by user - * - decoding: unused - */ - int max_chunk_size; - - /** - * forces the use of wallclock timestamps as pts/dts of packets - * This has undefined results in the presence of B frames. - * - encoding: unused - * - decoding: Set by user - */ - int use_wallclock_as_timestamps; - - /** - * avio flags, used to force AVIO_FLAG_DIRECT. - * - encoding: unused - * - decoding: Set by user - */ - int avio_flags; - - /** - * The duration field can be estimated through various ways, and this field can be used - * to know how the duration was estimated. - * - encoding: unused - * - decoding: Read by user - */ - enum AVDurationEstimationMethod duration_estimation_method; - - /** - * Skip initial bytes when opening stream - * - encoding: unused - * - decoding: Set by user - */ - int64_t skip_initial_bytes; - - /** - * Correct single timestamp overflows - * - encoding: unused - * - decoding: Set by user - */ - unsigned int correct_ts_overflow; - - /** - * Force seeking to any (also non key) frames. - * - encoding: unused - * - decoding: Set by user - */ - int seek2any; - - /** - * Flush the I/O context after each packet. - * - encoding: Set by user - * - decoding: unused - */ - int flush_packets; - - /** - * format probing score. - * The maximal score is AVPROBE_SCORE_MAX, its set when the demuxer probes - * the format. - * - encoding: unused - * - decoding: set by avformat, read by user - */ - int probe_score; - - /** - * number of bytes to read maximally to identify format. - * - encoding: unused - * - decoding: set by user - */ - int format_probesize; - - /** - * ',' separated list of allowed decoders. - * If NULL then all are allowed - * - encoding: unused - * - decoding: set by user - */ - char *codec_whitelist; - - /** - * ',' separated list of allowed demuxers. - * If NULL then all are allowed - * - encoding: unused - * - decoding: set by user - */ - char *format_whitelist; - - /** - * An opaque field for libavformat internal usage. - * Must not be accessed in any way by callers. - */ - AVFormatInternal *internal; - - /** - * IO repositioned flag. - * This is set by avformat when the underlaying IO context read pointer - * is repositioned, for example when doing byte based seeking. - * Demuxers can use the flag to detect such changes. - */ - int io_repositioned; - - /** - * Forced video codec. - * This allows forcing a specific decoder, even when there are multiple with - * the same codec_id. - * Demuxing: Set by user - */ - AVCodec *video_codec; - - /** - * Forced audio codec. - * This allows forcing a specific decoder, even when there are multiple with - * the same codec_id. - * Demuxing: Set by user - */ - AVCodec *audio_codec; - - /** - * Forced subtitle codec. - * This allows forcing a specific decoder, even when there are multiple with - * the same codec_id. - * Demuxing: Set by user - */ - AVCodec *subtitle_codec; - - /** - * Forced data codec. - * This allows forcing a specific decoder, even when there are multiple with - * the same codec_id. - * Demuxing: Set by user - */ - AVCodec *data_codec; - - /** - * Number of bytes to be written as padding in a metadata header. - * Demuxing: Unused. - * Muxing: Set by user via av_format_set_metadata_header_padding. - */ - int metadata_header_padding; - - /** - * User data. - * This is a place for some private data of the user. - */ - void *opaque; - - /** - * Callback used by devices to communicate with application. - */ - av_format_control_message control_message_cb; - - /** - * Output timestamp offset, in microseconds. - * Muxing: set by user - */ - int64_t output_ts_offset; - - /** - * dump format separator. - * can be ", " or "\n " or anything else - * - muxing: Set by user. - * - demuxing: Set by user. - */ - uint8_t *dump_separator; - - /** - * Forced Data codec_id. - * Demuxing: Set by user. - */ - enum AVCodecID data_codec_id; - -#if FF_API_OLD_OPEN_CALLBACKS - /** - * Called to open further IO contexts when needed for demuxing. - * - * This can be set by the user application to perform security checks on - * the URLs before opening them. - * The function should behave like avio_open2(), AVFormatContext is provided - * as contextual information and to reach AVFormatContext.opaque. - * - * If NULL then some simple checks are used together with avio_open2(). - * - * Must not be accessed directly from outside avformat. - * @See av_format_set_open_cb() - * - * Demuxing: Set by user. - * - * @deprecated Use io_open and io_close. - */ - attribute_deprecated - int (*open_cb)(struct AVFormatContext *s, AVIOContext **p, const char *url, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options); -#endif - - /** - * ',' separated list of allowed protocols. - * - encoding: unused - * - decoding: set by user - */ - char *protocol_whitelist; - - /** - * A callback for opening new IO streams. - * - * Whenever a muxer or a demuxer needs to open an IO stream (typically from - * avformat_open_input() for demuxers, but for certain formats can happen at - * other times as well), it will call this callback to obtain an IO context. - * - * @param s the format context - * @param pb on success, the newly opened IO context should be returned here - * @param url the url to open - * @param flags a combination of AVIO_FLAG_* - * @param options a dictionary of additional options, with the same - * semantics as in avio_open2() - * @return 0 on success, a negative AVERROR code on failure - * - * @note Certain muxers and demuxers do nesting, i.e. they open one or more - * additional internal format contexts. Thus the AVFormatContext pointer - * passed to this callback may be different from the one facing the caller. - * It will, however, have the same 'opaque' field. - */ - int (*io_open)(struct AVFormatContext *s, AVIOContext **pb, const char *url, - int flags, AVDictionary **options); - - /** - * A callback for closing the streams opened with AVFormatContext.io_open(). - */ - void (*io_close)(struct AVFormatContext *s, AVIOContext *pb); - - /** - * ',' separated list of disallowed protocols. - * - encoding: unused - * - decoding: set by user - */ - char *protocol_blacklist; - - /** - * The maximum number of streams. - * - encoding: unused - * - decoding: set by user - */ - int max_streams; - - /** - * Skip duration calcuation in estimate_timings_from_pts. - * - encoding: unused - * - decoding: set by user - */ - int skip_estimate_duration_from_pts; -} AVFormatContext; - -#if FF_API_FORMAT_GET_SET -/** - * Accessors for some AVFormatContext fields. These used to be provided for ABI - * compatibility, and do not need to be used anymore. - */ -attribute_deprecated -int av_format_get_probe_score(const AVFormatContext *s); -attribute_deprecated -AVCodec * av_format_get_video_codec(const AVFormatContext *s); -attribute_deprecated -void av_format_set_video_codec(AVFormatContext *s, AVCodec *c); -attribute_deprecated -AVCodec * av_format_get_audio_codec(const AVFormatContext *s); -attribute_deprecated -void av_format_set_audio_codec(AVFormatContext *s, AVCodec *c); -attribute_deprecated -AVCodec * av_format_get_subtitle_codec(const AVFormatContext *s); -attribute_deprecated -void av_format_set_subtitle_codec(AVFormatContext *s, AVCodec *c); -attribute_deprecated -AVCodec * av_format_get_data_codec(const AVFormatContext *s); -attribute_deprecated -void av_format_set_data_codec(AVFormatContext *s, AVCodec *c); -attribute_deprecated -int av_format_get_metadata_header_padding(const AVFormatContext *s); -attribute_deprecated -void av_format_set_metadata_header_padding(AVFormatContext *s, int c); -attribute_deprecated -void * av_format_get_opaque(const AVFormatContext *s); -attribute_deprecated -void av_format_set_opaque(AVFormatContext *s, void *opaque); -attribute_deprecated -av_format_control_message av_format_get_control_message_cb(const AVFormatContext *s); -attribute_deprecated -void av_format_set_control_message_cb(AVFormatContext *s, av_format_control_message callback); -#if FF_API_OLD_OPEN_CALLBACKS -attribute_deprecated AVOpenCallback av_format_get_open_cb(const AVFormatContext *s); -attribute_deprecated void av_format_set_open_cb(AVFormatContext *s, AVOpenCallback callback); -#endif -#endif - -/** - * This function will cause global side data to be injected in the next packet - * of each stream as well as after any subsequent seek. - */ -void av_format_inject_global_side_data(AVFormatContext *s); - -/** - * Returns the method used to set ctx->duration. - * - * @return AVFMT_DURATION_FROM_PTS, AVFMT_DURATION_FROM_STREAM, or AVFMT_DURATION_FROM_BITRATE. - */ -enum AVDurationEstimationMethod av_fmt_ctx_get_duration_estimation_method(const AVFormatContext* ctx); - -typedef struct AVPacketList { - AVPacket pkt; - struct AVPacketList *next; -} AVPacketList; - - -/** - * @defgroup lavf_core Core functions - * @ingroup libavf - * - * Functions for querying libavformat capabilities, allocating core structures, - * etc. - * @{ - */ - -/** - * Return the LIBAVFORMAT_VERSION_INT constant. - */ -unsigned avformat_version(void); - -/** - * Return the libavformat build-time configuration. - */ -const char *avformat_configuration(void); - -/** - * Return the libavformat license. - */ -const char *avformat_license(void); - -#if FF_API_NEXT -/** - * Initialize libavformat and register all the muxers, demuxers and - * protocols. If you do not call this function, then you can select - * exactly which formats you want to support. - * - * @see av_register_input_format() - * @see av_register_output_format() - */ -attribute_deprecated -void av_register_all(void); - -attribute_deprecated -void av_register_input_format(AVInputFormat *format); -attribute_deprecated -void av_register_output_format(AVOutputFormat *format); -#endif - -/** - * Do global initialization of network libraries. This is optional, - * and not recommended anymore. - * - * This functions only exists to work around thread-safety issues - * with older GnuTLS or OpenSSL libraries. If libavformat is linked - * to newer versions of those libraries, or if you do not use them, - * calling this function is unnecessary. Otherwise, you need to call - * this function before any other threads using them are started. - * - * This function will be deprecated once support for older GnuTLS and - * OpenSSL libraries is removed, and this function has no purpose - * anymore. - */ -int avformat_network_init(void); - -/** - * Undo the initialization done by avformat_network_init. Call it only - * once for each time you called avformat_network_init. - */ -int avformat_network_deinit(void); - -#if FF_API_NEXT -/** - * If f is NULL, returns the first registered input format, - * if f is non-NULL, returns the next registered input format after f - * or NULL if f is the last one. - */ -attribute_deprecated -AVInputFormat *av_iformat_next(const AVInputFormat *f); - -/** - * If f is NULL, returns the first registered output format, - * if f is non-NULL, returns the next registered output format after f - * or NULL if f is the last one. - */ -attribute_deprecated -AVOutputFormat *av_oformat_next(const AVOutputFormat *f); -#endif - -/** - * Iterate over all registered muxers. - * - * @param opaque a pointer where libavformat will store the iteration state. Must - * point to NULL to start the iteration. - * - * @return the next registered muxer or NULL when the iteration is - * finished - */ -const AVOutputFormat *av_muxer_iterate(void **opaque); - -/** - * Iterate over all registered demuxers. - * - * @param opaque a pointer where libavformat will store the iteration state. Must - * point to NULL to start the iteration. - * - * @return the next registered demuxer or NULL when the iteration is - * finished - */ -const AVInputFormat *av_demuxer_iterate(void **opaque); - -/** - * Allocate an AVFormatContext. - * avformat_free_context() can be used to free the context and everything - * allocated by the framework within it. - */ -AVFormatContext *avformat_alloc_context(void); - -/** - * Free an AVFormatContext and all its streams. - * @param s context to free - */ -void avformat_free_context(AVFormatContext *s); - -/** - * Get the AVClass for AVFormatContext. It can be used in combination with - * AV_OPT_SEARCH_FAKE_OBJ for examining options. - * - * @see av_opt_find(). - */ -const AVClass *avformat_get_class(void); - -/** - * Add a new stream to a media file. - * - * When demuxing, it is called by the demuxer in read_header(). If the - * flag AVFMTCTX_NOHEADER is set in s.ctx_flags, then it may also - * be called in read_packet(). - * - * When muxing, should be called by the user before avformat_write_header(). - * - * User is required to call avcodec_close() and avformat_free_context() to - * clean up the allocation by avformat_new_stream(). - * - * @param s media file handle - * @param c If non-NULL, the AVCodecContext corresponding to the new stream - * will be initialized to use this codec. This is needed for e.g. codec-specific - * defaults to be set, so codec should be provided if it is known. - * - * @return newly created stream or NULL on error. - */ -AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c); - -/** - * Wrap an existing array as stream side data. - * - * @param st stream - * @param type side information type - * @param data the side data array. It must be allocated with the av_malloc() - * family of functions. The ownership of the data is transferred to - * st. - * @param size side information size - * @return zero on success, a negative AVERROR code on failure. On failure, - * the stream is unchanged and the data remains owned by the caller. - */ -int av_stream_add_side_data(AVStream *st, enum AVPacketSideDataType type, - uint8_t *data, size_t size); - -/** - * Allocate new information from stream. - * - * @param stream stream - * @param type desired side information type - * @param size side information size - * @return pointer to fresh allocated data or NULL otherwise - */ -uint8_t *av_stream_new_side_data(AVStream *stream, - enum AVPacketSideDataType type, int size); -/** - * Get side information from stream. - * - * @param stream stream - * @param type desired side information type - * @param size pointer for side information size to store (optional) - * @return pointer to data if present or NULL otherwise - */ -uint8_t *av_stream_get_side_data(const AVStream *stream, - enum AVPacketSideDataType type, int *size); - -AVProgram *av_new_program(AVFormatContext *s, int id); - -/** - * @} - */ - - -/** - * Allocate an AVFormatContext for an output format. - * avformat_free_context() can be used to free the context and - * everything allocated by the framework within it. - * - * @param *ctx is set to the created format context, or to NULL in - * case of failure - * @param oformat format to use for allocating the context, if NULL - * format_name and filename are used instead - * @param format_name the name of output format to use for allocating the - * context, if NULL filename is used instead - * @param filename the name of the filename to use for allocating the - * context, may be NULL - * @return >= 0 in case of success, a negative AVERROR code in case of - * failure - */ -int avformat_alloc_output_context2(AVFormatContext **ctx, AVOutputFormat *oformat, - const char *format_name, const char *filename); - -/** - * @addtogroup lavf_decoding - * @{ - */ - -/** - * Find AVInputFormat based on the short name of the input format. - */ -AVInputFormat *av_find_input_format(const char *short_name); - -/** - * Guess the file format. - * - * @param pd data to be probed - * @param is_opened Whether the file is already opened; determines whether - * demuxers with or without AVFMT_NOFILE are probed. - */ -AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened); - -/** - * Guess the file format. - * - * @param pd data to be probed - * @param is_opened Whether the file is already opened; determines whether - * demuxers with or without AVFMT_NOFILE are probed. - * @param score_max A probe score larger that this is required to accept a - * detection, the variable is set to the actual detection - * score afterwards. - * If the score is <= AVPROBE_SCORE_MAX / 4 it is recommended - * to retry with a larger probe buffer. - */ -AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max); - -/** - * Guess the file format. - * - * @param is_opened Whether the file is already opened; determines whether - * demuxers with or without AVFMT_NOFILE are probed. - * @param score_ret The score of the best detection. - */ -AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score_ret); - -/** - * Probe a bytestream to determine the input format. Each time a probe returns - * with a score that is too low, the probe buffer size is increased and another - * attempt is made. When the maximum probe size is reached, the input format - * with the highest score is returned. - * - * @param pb the bytestream to probe - * @param fmt the input format is put here - * @param url the url of the stream - * @param logctx the log context - * @param offset the offset within the bytestream to probe from - * @param max_probe_size the maximum probe buffer size (zero for default) - * @return the score in case of success, a negative value corresponding to an - * the maximal score is AVPROBE_SCORE_MAX - * AVERROR code otherwise - */ -int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt, - const char *url, void *logctx, - unsigned int offset, unsigned int max_probe_size); - -/** - * Like av_probe_input_buffer2() but returns 0 on success - */ -int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt, - const char *url, void *logctx, - unsigned int offset, unsigned int max_probe_size); - -/** - * Open an input stream and read the header. The codecs are not opened. - * The stream must be closed with avformat_close_input(). - * - * @param ps Pointer to user-supplied AVFormatContext (allocated by avformat_alloc_context). - * May be a pointer to NULL, in which case an AVFormatContext is allocated by this - * function and written into ps. - * Note that a user-supplied AVFormatContext will be freed on failure. - * @param url URL of the stream to open. - * @param fmt If non-NULL, this parameter forces a specific input format. - * Otherwise the format is autodetected. - * @param options A dictionary filled with AVFormatContext and demuxer-private options. - * On return this parameter will be destroyed and replaced with a dict containing - * options that were not found. May be NULL. - * - * @return 0 on success, a negative AVERROR on failure. - * - * @note If you want to use custom IO, preallocate the format context and set its pb field. - */ -int avformat_open_input(AVFormatContext **ps, const char *url, AVInputFormat *fmt, AVDictionary **options); - -attribute_deprecated -int av_demuxer_open(AVFormatContext *ic); - -/** - * Read packets of a media file to get stream information. This - * is useful for file formats with no headers such as MPEG. This - * function also computes the real framerate in case of MPEG-2 repeat - * frame mode. - * The logical file position is not changed by this function; - * examined packets may be buffered for later processing. - * - * @param ic media file handle - * @param options If non-NULL, an ic.nb_streams long array of pointers to - * dictionaries, where i-th member contains options for - * codec corresponding to i-th stream. - * On return each dictionary will be filled with options that were not found. - * @return >=0 if OK, AVERROR_xxx on error - * - * @note this function isn't guaranteed to open all the codecs, so - * options being non-empty at return is a perfectly normal behavior. - * - * @todo Let the user decide somehow what information is needed so that - * we do not waste time getting stuff the user does not need. - */ -int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options); - -/** - * Find the programs which belong to a given stream. - * - * @param ic media file handle - * @param last the last found program, the search will start after this - * program, or from the beginning if it is NULL - * @param s stream index - * @return the next program which belongs to s, NULL if no program is found or - * the last program is not among the programs of ic. - */ -AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s); - -void av_program_add_stream_index(AVFormatContext *ac, int progid, unsigned int idx); - -/** - * Find the "best" stream in the file. - * The best stream is determined according to various heuristics as the most - * likely to be what the user expects. - * If the decoder parameter is non-NULL, av_find_best_stream will find the - * default decoder for the stream's codec; streams for which no decoder can - * be found are ignored. - * - * @param ic media file handle - * @param type stream type: video, audio, subtitles, etc. - * @param wanted_stream_nb user-requested stream number, - * or -1 for automatic selection - * @param related_stream try to find a stream related (eg. in the same - * program) to this one, or -1 if none - * @param decoder_ret if non-NULL, returns the decoder for the - * selected stream - * @param flags flags; none are currently defined - * @return the non-negative stream number in case of success, - * AVERROR_STREAM_NOT_FOUND if no stream with the requested type - * could be found, - * AVERROR_DECODER_NOT_FOUND if streams were found but no decoder - * @note If av_find_best_stream returns successfully and decoder_ret is not - * NULL, then *decoder_ret is guaranteed to be set to a valid AVCodec. - */ -int av_find_best_stream(AVFormatContext *ic, - enum AVMediaType type, - int wanted_stream_nb, - int related_stream, - AVCodec **decoder_ret, - int flags); - -/** - * Return the next frame of a stream. - * This function returns what is stored in the file, and does not validate - * that what is there are valid frames for the decoder. It will split what is - * stored in the file into frames and return one for each call. It will not - * omit invalid data between valid frames so as to give the decoder the maximum - * information possible for decoding. - * - * If pkt->buf is NULL, then the packet is valid until the next - * av_read_frame() or until avformat_close_input(). Otherwise the packet - * is valid indefinitely. In both cases the packet must be freed with - * av_packet_unref when it is no longer needed. For video, the packet contains - * exactly one frame. For audio, it contains an integer number of frames if each - * frame has a known fixed size (e.g. PCM or ADPCM data). If the audio frames - * have a variable size (e.g. MPEG audio), then it contains one frame. - * - * pkt->pts, pkt->dts and pkt->duration are always set to correct - * values in AVStream.time_base units (and guessed if the format cannot - * provide them). pkt->pts can be AV_NOPTS_VALUE if the video format - * has B-frames, so it is better to rely on pkt->dts if you do not - * decompress the payload. - * - * @return 0 if OK, < 0 on error or end of file - */ -int av_read_frame(AVFormatContext *s, AVPacket *pkt); - -/** - * Seek to the keyframe at timestamp. - * 'timestamp' in 'stream_index'. - * - * @param s media file handle - * @param stream_index If stream_index is (-1), a default - * stream is selected, and timestamp is automatically converted - * from AV_TIME_BASE units to the stream specific time_base. - * @param timestamp Timestamp in AVStream.time_base units - * or, if no stream is specified, in AV_TIME_BASE units. - * @param flags flags which select direction and seeking mode - * @return >= 0 on success - */ -int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, - int flags); - -/** - * Seek to timestamp ts. - * Seeking will be done so that the point from which all active streams - * can be presented successfully will be closest to ts and within min/max_ts. - * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL. - * - * If flags contain AVSEEK_FLAG_BYTE, then all timestamps are in bytes and - * are the file position (this may not be supported by all demuxers). - * If flags contain AVSEEK_FLAG_FRAME, then all timestamps are in frames - * in the stream with stream_index (this may not be supported by all demuxers). - * Otherwise all timestamps are in units of the stream selected by stream_index - * or if stream_index is -1, in AV_TIME_BASE units. - * If flags contain AVSEEK_FLAG_ANY, then non-keyframes are treated as - * keyframes (this may not be supported by all demuxers). - * If flags contain AVSEEK_FLAG_BACKWARD, it is ignored. - * - * @param s media file handle - * @param stream_index index of the stream which is used as time base reference - * @param min_ts smallest acceptable timestamp - * @param ts target timestamp - * @param max_ts largest acceptable timestamp - * @param flags flags - * @return >=0 on success, error code otherwise - * - * @note This is part of the new seek API which is still under construction. - * Thus do not use this yet. It may change at any time, do not expect - * ABI compatibility yet! - */ -int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags); - -/** - * Discard all internally buffered data. This can be useful when dealing with - * discontinuities in the byte stream. Generally works only with formats that - * can resync. This includes headerless formats like MPEG-TS/TS but should also - * work with NUT, Ogg and in a limited way AVI for example. - * - * The set of streams, the detected duration, stream parameters and codecs do - * not change when calling this function. If you want a complete reset, it's - * better to open a new AVFormatContext. - * - * This does not flush the AVIOContext (s->pb). If necessary, call - * avio_flush(s->pb) before calling this function. - * - * @param s media file handle - * @return >=0 on success, error code otherwise - */ -int avformat_flush(AVFormatContext *s); - -/** - * Start playing a network-based stream (e.g. RTSP stream) at the - * current position. - */ -int av_read_play(AVFormatContext *s); - -/** - * Pause a network-based stream (e.g. RTSP stream). - * - * Use av_read_play() to resume it. - */ -int av_read_pause(AVFormatContext *s); - -/** - * Close an opened input AVFormatContext. Free it and all its contents - * and set *s to NULL. - */ -void avformat_close_input(AVFormatContext **s); -/** - * @} - */ - -#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward -#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes -#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non-keyframes -#define AVSEEK_FLAG_FRAME 8 ///< seeking based on frame number - -/** - * @addtogroup lavf_encoding - * @{ - */ - -#define AVSTREAM_INIT_IN_WRITE_HEADER 0 ///< stream parameters initialized in avformat_write_header -#define AVSTREAM_INIT_IN_INIT_OUTPUT 1 ///< stream parameters initialized in avformat_init_output - -/** - * Allocate the stream private data and write the stream header to - * an output media file. - * - * @param s Media file handle, must be allocated with avformat_alloc_context(). - * Its oformat field must be set to the desired output format; - * Its pb field must be set to an already opened AVIOContext. - * @param options An AVDictionary filled with AVFormatContext and muxer-private options. - * On return this parameter will be destroyed and replaced with a dict containing - * options that were not found. May be NULL. - * - * @return AVSTREAM_INIT_IN_WRITE_HEADER on success if the codec had not already been fully initialized in avformat_init, - * AVSTREAM_INIT_IN_INIT_OUTPUT on success if the codec had already been fully initialized in avformat_init, - * negative AVERROR on failure. - * - * @see av_opt_find, av_dict_set, avio_open, av_oformat_next, avformat_init_output. - */ -av_warn_unused_result -int avformat_write_header(AVFormatContext *s, AVDictionary **options); - -/** - * Allocate the stream private data and initialize the codec, but do not write the header. - * May optionally be used before avformat_write_header to initialize stream parameters - * before actually writing the header. - * If using this function, do not pass the same options to avformat_write_header. - * - * @param s Media file handle, must be allocated with avformat_alloc_context(). - * Its oformat field must be set to the desired output format; - * Its pb field must be set to an already opened AVIOContext. - * @param options An AVDictionary filled with AVFormatContext and muxer-private options. - * On return this parameter will be destroyed and replaced with a dict containing - * options that were not found. May be NULL. - * - * @return AVSTREAM_INIT_IN_WRITE_HEADER on success if the codec requires avformat_write_header to fully initialize, - * AVSTREAM_INIT_IN_INIT_OUTPUT on success if the codec has been fully initialized, - * negative AVERROR on failure. - * - * @see av_opt_find, av_dict_set, avio_open, av_oformat_next, avformat_write_header. - */ -av_warn_unused_result -int avformat_init_output(AVFormatContext *s, AVDictionary **options); - -/** - * Write a packet to an output media file. - * - * This function passes the packet directly to the muxer, without any buffering - * or reordering. The caller is responsible for correctly interleaving the - * packets if the format requires it. Callers that want libavformat to handle - * the interleaving should call av_interleaved_write_frame() instead of this - * function. - * - * @param s media file handle - * @param pkt The packet containing the data to be written. Note that unlike - * av_interleaved_write_frame(), this function does not take - * ownership of the packet passed to it (though some muxers may make - * an internal reference to the input packet). - *
- * This parameter can be NULL (at any time, not just at the end), in - * order to immediately flush data buffered within the muxer, for - * muxers that buffer up data internally before writing it to the - * output. - *
- * Packet's @ref AVPacket.stream_index "stream_index" field must be - * set to the index of the corresponding stream in @ref - * AVFormatContext.streams "s->streams". - *
- * The timestamps (@ref AVPacket.pts "pts", @ref AVPacket.dts "dts") - * must be set to correct values in the stream's timebase (unless the - * output format is flagged with the AVFMT_NOTIMESTAMPS flag, then - * they can be set to AV_NOPTS_VALUE). - * The dts for subsequent packets passed to this function must be strictly - * increasing when compared in their respective timebases (unless the - * output format is flagged with the AVFMT_TS_NONSTRICT, then they - * merely have to be nondecreasing). @ref AVPacket.duration - * "duration") should also be set if known. - * @return < 0 on error, = 0 if OK, 1 if flushed and there is no more data to flush - * - * @see av_interleaved_write_frame() - */ -int av_write_frame(AVFormatContext *s, AVPacket *pkt); - -/** - * Write a packet to an output media file ensuring correct interleaving. - * - * This function will buffer the packets internally as needed to make sure the - * packets in the output file are properly interleaved in the order of - * increasing dts. Callers doing their own interleaving should call - * av_write_frame() instead of this function. - * - * Using this function instead of av_write_frame() can give muxers advance - * knowledge of future packets, improving e.g. the behaviour of the mp4 - * muxer for VFR content in fragmenting mode. - * - * @param s media file handle - * @param pkt The packet containing the data to be written. - *
- * If the packet is reference-counted, this function will take - * ownership of this reference and unreference it later when it sees - * fit. - * The caller must not access the data through this reference after - * this function returns. If the packet is not reference-counted, - * libavformat will make a copy. - *
- * This parameter can be NULL (at any time, not just at the end), to - * flush the interleaving queues. - *
- * Packet's @ref AVPacket.stream_index "stream_index" field must be - * set to the index of the corresponding stream in @ref - * AVFormatContext.streams "s->streams". - *
- * The timestamps (@ref AVPacket.pts "pts", @ref AVPacket.dts "dts") - * must be set to correct values in the stream's timebase (unless the - * output format is flagged with the AVFMT_NOTIMESTAMPS flag, then - * they can be set to AV_NOPTS_VALUE). - * The dts for subsequent packets in one stream must be strictly - * increasing (unless the output format is flagged with the - * AVFMT_TS_NONSTRICT, then they merely have to be nondecreasing). - * @ref AVPacket.duration "duration") should also be set if known. - * - * @return 0 on success, a negative AVERROR on error. Libavformat will always - * take care of freeing the packet, even if this function fails. - * - * @see av_write_frame(), AVFormatContext.max_interleave_delta - */ -int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt); - -/** - * Write an uncoded frame to an output media file. - * - * The frame must be correctly interleaved according to the container - * specification; if not, then av_interleaved_write_frame() must be used. - * - * See av_interleaved_write_frame() for details. - */ -int av_write_uncoded_frame(AVFormatContext *s, int stream_index, - AVFrame *frame); - -/** - * Write an uncoded frame to an output media file. - * - * If the muxer supports it, this function makes it possible to write an AVFrame - * structure directly, without encoding it into a packet. - * It is mostly useful for devices and similar special muxers that use raw - * video or PCM data and will not serialize it into a byte stream. - * - * To test whether it is possible to use it with a given muxer and stream, - * use av_write_uncoded_frame_query(). - * - * The caller gives up ownership of the frame and must not access it - * afterwards. - * - * @return >=0 for success, a negative code on error - */ -int av_interleaved_write_uncoded_frame(AVFormatContext *s, int stream_index, - AVFrame *frame); - -/** - * Test whether a muxer supports uncoded frame. - * - * @return >=0 if an uncoded frame can be written to that muxer and stream, - * <0 if not - */ -int av_write_uncoded_frame_query(AVFormatContext *s, int stream_index); - -/** - * Write the stream trailer to an output media file and free the - * file private data. - * - * May only be called after a successful call to avformat_write_header. - * - * @param s media file handle - * @return 0 if OK, AVERROR_xxx on error - */ -int av_write_trailer(AVFormatContext *s); - -/** - * Return the output format in the list of registered output formats - * which best matches the provided parameters, or return NULL if - * there is no match. - * - * @param short_name if non-NULL checks if short_name matches with the - * names of the registered formats - * @param filename if non-NULL checks if filename terminates with the - * extensions of the registered formats - * @param mime_type if non-NULL checks if mime_type matches with the - * MIME type of the registered formats - */ -AVOutputFormat *av_guess_format(const char *short_name, - const char *filename, - const char *mime_type); - -/** - * Guess the codec ID based upon muxer and filename. - */ -enum AVCodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name, - const char *filename, const char *mime_type, - enum AVMediaType type); - -/** - * Get timing information for the data currently output. - * The exact meaning of "currently output" depends on the format. - * It is mostly relevant for devices that have an internal buffer and/or - * work in real time. - * @param s media file handle - * @param stream stream in the media file - * @param[out] dts DTS of the last packet output for the stream, in stream - * time_base units - * @param[out] wall absolute time when that packet whas output, - * in microsecond - * @return 0 if OK, AVERROR(ENOSYS) if the format does not support it - * Note: some formats or devices may not allow to measure dts and wall - * atomically. - */ -int av_get_output_timestamp(struct AVFormatContext *s, int stream, - int64_t *dts, int64_t *wall); - - -/** - * @} - */ - - -/** - * @defgroup lavf_misc Utility functions - * @ingroup libavf - * @{ - * - * Miscellaneous utility functions related to both muxing and demuxing - * (or neither). - */ - -/** - * Send a nice hexadecimal dump of a buffer to the specified file stream. - * - * @param f The file stream pointer where the dump should be sent to. - * @param buf buffer - * @param size buffer size - * - * @see av_hex_dump_log, av_pkt_dump2, av_pkt_dump_log2 - */ -void av_hex_dump(FILE *f, const uint8_t *buf, int size); - -/** - * Send a nice hexadecimal dump of a buffer to the log. - * - * @param avcl A pointer to an arbitrary struct of which the first field is a - * pointer to an AVClass struct. - * @param level The importance level of the message, lower values signifying - * higher importance. - * @param buf buffer - * @param size buffer size - * - * @see av_hex_dump, av_pkt_dump2, av_pkt_dump_log2 - */ -void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size); - -/** - * Send a nice dump of a packet to the specified file stream. - * - * @param f The file stream pointer where the dump should be sent to. - * @param pkt packet to dump - * @param dump_payload True if the payload must be displayed, too. - * @param st AVStream that the packet belongs to - */ -void av_pkt_dump2(FILE *f, const AVPacket *pkt, int dump_payload, const AVStream *st); - - -/** - * Send a nice dump of a packet to the log. - * - * @param avcl A pointer to an arbitrary struct of which the first field is a - * pointer to an AVClass struct. - * @param level The importance level of the message, lower values signifying - * higher importance. - * @param pkt packet to dump - * @param dump_payload True if the payload must be displayed, too. - * @param st AVStream that the packet belongs to - */ -void av_pkt_dump_log2(void *avcl, int level, const AVPacket *pkt, int dump_payload, - const AVStream *st); - -/** - * Get the AVCodecID for the given codec tag tag. - * If no codec id is found returns AV_CODEC_ID_NONE. - * - * @param tags list of supported codec_id-codec_tag pairs, as stored - * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag - * @param tag codec tag to match to a codec ID - */ -enum AVCodecID av_codec_get_id(const struct AVCodecTag * const *tags, unsigned int tag); - -/** - * Get the codec tag for the given codec id id. - * If no codec tag is found returns 0. - * - * @param tags list of supported codec_id-codec_tag pairs, as stored - * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag - * @param id codec ID to match to a codec tag - */ -unsigned int av_codec_get_tag(const struct AVCodecTag * const *tags, enum AVCodecID id); - -/** - * Get the codec tag for the given codec id. - * - * @param tags list of supported codec_id - codec_tag pairs, as stored - * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag - * @param id codec id that should be searched for in the list - * @param tag A pointer to the found tag - * @return 0 if id was not found in tags, > 0 if it was found - */ -int av_codec_get_tag2(const struct AVCodecTag * const *tags, enum AVCodecID id, - unsigned int *tag); - -int av_find_default_stream_index(AVFormatContext *s); - -/** - * Get the index for a specific timestamp. - * - * @param st stream that the timestamp belongs to - * @param timestamp timestamp to retrieve the index for - * @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond - * to the timestamp which is <= the requested one, if backward - * is 0, then it will be >= - * if AVSEEK_FLAG_ANY seek to any frame, only keyframes otherwise - * @return < 0 if no such timestamp could be found - */ -int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags); - -/** - * Add an index entry into a sorted list. Update the entry if the list - * already contains it. - * - * @param timestamp timestamp in the time base of the given stream - */ -int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp, - int size, int distance, int flags); - - -/** - * Split a URL string into components. - * - * The pointers to buffers for storing individual components may be null, - * in order to ignore that component. Buffers for components not found are - * set to empty strings. If the port is not found, it is set to a negative - * value. - * - * @param proto the buffer for the protocol - * @param proto_size the size of the proto buffer - * @param authorization the buffer for the authorization - * @param authorization_size the size of the authorization buffer - * @param hostname the buffer for the host name - * @param hostname_size the size of the hostname buffer - * @param port_ptr a pointer to store the port number in - * @param path the buffer for the path - * @param path_size the size of the path buffer - * @param url the URL to split - */ -void av_url_split(char *proto, int proto_size, - char *authorization, int authorization_size, - char *hostname, int hostname_size, - int *port_ptr, - char *path, int path_size, - const char *url); - - -/** - * Print detailed information about the input or output format, such as - * duration, bitrate, streams, container, programs, metadata, side data, - * codec and time base. - * - * @param ic the context to analyze - * @param index index of the stream to dump information about - * @param url the URL to print, such as source or destination file - * @param is_output Select whether the specified context is an input(0) or output(1) - */ -void av_dump_format(AVFormatContext *ic, - int index, - const char *url, - int is_output); - - -#define AV_FRAME_FILENAME_FLAGS_MULTIPLE 1 ///< Allow multiple %d - -/** - * Return in 'buf' the path with '%d' replaced by a number. - * - * Also handles the '%0nd' format where 'n' is the total number - * of digits and '%%'. - * - * @param buf destination buffer - * @param buf_size destination buffer size - * @param path numbered sequence string - * @param number frame number - * @param flags AV_FRAME_FILENAME_FLAGS_* - * @return 0 if OK, -1 on format error - */ -int av_get_frame_filename2(char *buf, int buf_size, - const char *path, int number, int flags); - -int av_get_frame_filename(char *buf, int buf_size, - const char *path, int number); - -/** - * Check whether filename actually is a numbered sequence generator. - * - * @param filename possible numbered sequence string - * @return 1 if a valid numbered sequence string, 0 otherwise - */ -int av_filename_number_test(const char *filename); - -/** - * Generate an SDP for an RTP session. - * - * Note, this overwrites the id values of AVStreams in the muxer contexts - * for getting unique dynamic payload types. - * - * @param ac array of AVFormatContexts describing the RTP streams. If the - * array is composed by only one context, such context can contain - * multiple AVStreams (one AVStream per RTP stream). Otherwise, - * all the contexts in the array (an AVCodecContext per RTP stream) - * must contain only one AVStream. - * @param n_files number of AVCodecContexts contained in ac - * @param buf buffer where the SDP will be stored (must be allocated by - * the caller) - * @param size the size of the buffer - * @return 0 if OK, AVERROR_xxx on error - */ -int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size); - -/** - * Return a positive value if the given filename has one of the given - * extensions, 0 otherwise. - * - * @param filename file name to check against the given extensions - * @param extensions a comma-separated list of filename extensions - */ -int av_match_ext(const char *filename, const char *extensions); - -/** - * Test if the given container can store a codec. - * - * @param ofmt container to check for compatibility - * @param codec_id codec to potentially store in container - * @param std_compliance standards compliance level, one of FF_COMPLIANCE_* - * - * @return 1 if codec with ID codec_id can be stored in ofmt, 0 if it cannot. - * A negative number if this information is not available. - */ -int avformat_query_codec(const AVOutputFormat *ofmt, enum AVCodecID codec_id, - int std_compliance); - -/** - * @defgroup riff_fourcc RIFF FourCCs - * @{ - * Get the tables mapping RIFF FourCCs to libavcodec AVCodecIDs. The tables are - * meant to be passed to av_codec_get_id()/av_codec_get_tag() as in the - * following code: - * @code - * uint32_t tag = MKTAG('H', '2', '6', '4'); - * const struct AVCodecTag *table[] = { avformat_get_riff_video_tags(), 0 }; - * enum AVCodecID id = av_codec_get_id(table, tag); - * @endcode - */ -/** - * @return the table mapping RIFF FourCCs for video to libavcodec AVCodecID. - */ -const struct AVCodecTag *avformat_get_riff_video_tags(void); -/** - * @return the table mapping RIFF FourCCs for audio to AVCodecID. - */ -const struct AVCodecTag *avformat_get_riff_audio_tags(void); -/** - * @return the table mapping MOV FourCCs for video to libavcodec AVCodecID. - */ -const struct AVCodecTag *avformat_get_mov_video_tags(void); -/** - * @return the table mapping MOV FourCCs for audio to AVCodecID. - */ -const struct AVCodecTag *avformat_get_mov_audio_tags(void); - -/** - * @} - */ - -/** - * Guess the sample aspect ratio of a frame, based on both the stream and the - * frame aspect ratio. - * - * Since the frame aspect ratio is set by the codec but the stream aspect ratio - * is set by the demuxer, these two may not be equal. This function tries to - * return the value that you should use if you would like to display the frame. - * - * Basic logic is to use the stream aspect ratio if it is set to something sane - * otherwise use the frame aspect ratio. This way a container setting, which is - * usually easy to modify can override the coded value in the frames. - * - * @param format the format context which the stream is part of - * @param stream the stream which the frame is part of - * @param frame the frame with the aspect ratio to be determined - * @return the guessed (valid) sample_aspect_ratio, 0/1 if no idea - */ -AVRational av_guess_sample_aspect_ratio(AVFormatContext *format, AVStream *stream, AVFrame *frame); - -/** - * Guess the frame rate, based on both the container and codec information. - * - * @param ctx the format context which the stream is part of - * @param stream the stream which the frame is part of - * @param frame the frame for which the frame rate should be determined, may be NULL - * @return the guessed (valid) frame rate, 0/1 if no idea - */ -AVRational av_guess_frame_rate(AVFormatContext *ctx, AVStream *stream, AVFrame *frame); - -/** - * Check if the stream st contained in s is matched by the stream specifier - * spec. - * - * See the "stream specifiers" chapter in the documentation for the syntax - * of spec. - * - * @return >0 if st is matched by spec; - * 0 if st is not matched by spec; - * AVERROR code if spec is invalid - * - * @note A stream specifier can match several streams in the format. - */ -int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st, - const char *spec); - -int avformat_queue_attached_pictures(AVFormatContext *s); - -#if FF_API_OLD_BSF -/** - * Apply a list of bitstream filters to a packet. - * - * @param codec AVCodecContext, usually from an AVStream - * @param pkt the packet to apply filters to. If, on success, the returned - * packet has size == 0 and side_data_elems == 0, it indicates that - * the packet should be dropped - * @param bsfc a NULL-terminated list of filters to apply - * @return >=0 on success; - * AVERROR code on failure - */ -attribute_deprecated -int av_apply_bitstream_filters(AVCodecContext *codec, AVPacket *pkt, - AVBitStreamFilterContext *bsfc); -#endif - -enum AVTimebaseSource { - AVFMT_TBCF_AUTO = -1, - AVFMT_TBCF_DECODER, - AVFMT_TBCF_DEMUXER, -#if FF_API_R_FRAME_RATE - AVFMT_TBCF_R_FRAMERATE, -#endif -}; - -/** - * Transfer internal timing information from one stream to another. - * - * This function is useful when doing stream copy. - * - * @param ofmt target output format for ost - * @param ost output stream which needs timings copy and adjustments - * @param ist reference input stream to copy timings from - * @param copy_tb define from where the stream codec timebase needs to be imported - */ -int avformat_transfer_internal_stream_timing_info(const AVOutputFormat *ofmt, - AVStream *ost, const AVStream *ist, - enum AVTimebaseSource copy_tb); - -/** - * Get the internal codec timebase from a stream. - * - * @param st input stream to extract the timebase from - */ -AVRational av_stream_get_codec_timebase(const AVStream *st); - -/** - * @} - */ - -#endif /* AVFORMAT_AVFORMAT_H */ diff --git a/libs/windows/include/libavformat/avio.h b/libs/windows/include/libavformat/avio.h deleted file mode 100644 index 75912ce6..00000000 --- a/libs/windows/include/libavformat/avio.h +++ /dev/null @@ -1,861 +0,0 @@ -/* - * copyright (c) 2001 Fabrice Bellard - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ -#ifndef AVFORMAT_AVIO_H -#define AVFORMAT_AVIO_H - -/** - * @file - * @ingroup lavf_io - * Buffered I/O operations - */ - -#include - -#include "libavutil/common.h" -#include "libavutil/dict.h" -#include "libavutil/log.h" - -#include "libavformat/version.h" - -/** - * Seeking works like for a local file. - */ -#define AVIO_SEEKABLE_NORMAL (1 << 0) - -/** - * Seeking by timestamp with avio_seek_time() is possible. - */ -#define AVIO_SEEKABLE_TIME (1 << 1) - -/** - * Callback for checking whether to abort blocking functions. - * AVERROR_EXIT is returned in this case by the interrupted - * function. During blocking operations, callback is called with - * opaque as parameter. If the callback returns 1, the - * blocking operation will be aborted. - * - * No members can be added to this struct without a major bump, if - * new elements have been added after this struct in AVFormatContext - * or AVIOContext. - */ -typedef struct AVIOInterruptCB { - int (*callback)(void*); - void *opaque; -} AVIOInterruptCB; - -/** - * Directory entry types. - */ -enum AVIODirEntryType { - AVIO_ENTRY_UNKNOWN, - AVIO_ENTRY_BLOCK_DEVICE, - AVIO_ENTRY_CHARACTER_DEVICE, - AVIO_ENTRY_DIRECTORY, - AVIO_ENTRY_NAMED_PIPE, - AVIO_ENTRY_SYMBOLIC_LINK, - AVIO_ENTRY_SOCKET, - AVIO_ENTRY_FILE, - AVIO_ENTRY_SERVER, - AVIO_ENTRY_SHARE, - AVIO_ENTRY_WORKGROUP, -}; - -/** - * Describes single entry of the directory. - * - * Only name and type fields are guaranteed be set. - * Rest of fields are protocol or/and platform dependent and might be unknown. - */ -typedef struct AVIODirEntry { - char *name; /**< Filename */ - int type; /**< Type of the entry */ - int utf8; /**< Set to 1 when name is encoded with UTF-8, 0 otherwise. - Name can be encoded with UTF-8 even though 0 is set. */ - int64_t size; /**< File size in bytes, -1 if unknown. */ - int64_t modification_timestamp; /**< Time of last modification in microseconds since unix - epoch, -1 if unknown. */ - int64_t access_timestamp; /**< Time of last access in microseconds since unix epoch, - -1 if unknown. */ - int64_t status_change_timestamp; /**< Time of last status change in microseconds since unix - epoch, -1 if unknown. */ - int64_t user_id; /**< User ID of owner, -1 if unknown. */ - int64_t group_id; /**< Group ID of owner, -1 if unknown. */ - int64_t filemode; /**< Unix file mode, -1 if unknown. */ -} AVIODirEntry; - -typedef struct AVIODirContext { - struct URLContext *url_context; -} AVIODirContext; - -/** - * Different data types that can be returned via the AVIO - * write_data_type callback. - */ -enum AVIODataMarkerType { - /** - * Header data; this needs to be present for the stream to be decodeable. - */ - AVIO_DATA_MARKER_HEADER, - /** - * A point in the output bytestream where a decoder can start decoding - * (i.e. a keyframe). A demuxer/decoder given the data flagged with - * AVIO_DATA_MARKER_HEADER, followed by any AVIO_DATA_MARKER_SYNC_POINT, - * should give decodeable results. - */ - AVIO_DATA_MARKER_SYNC_POINT, - /** - * A point in the output bytestream where a demuxer can start parsing - * (for non self synchronizing bytestream formats). That is, any - * non-keyframe packet start point. - */ - AVIO_DATA_MARKER_BOUNDARY_POINT, - /** - * This is any, unlabelled data. It can either be a muxer not marking - * any positions at all, it can be an actual boundary/sync point - * that the muxer chooses not to mark, or a later part of a packet/fragment - * that is cut into multiple write callbacks due to limited IO buffer size. - */ - AVIO_DATA_MARKER_UNKNOWN, - /** - * Trailer data, which doesn't contain actual content, but only for - * finalizing the output file. - */ - AVIO_DATA_MARKER_TRAILER, - /** - * A point in the output bytestream where the underlying AVIOContext might - * flush the buffer depending on latency or buffering requirements. Typically - * means the end of a packet. - */ - AVIO_DATA_MARKER_FLUSH_POINT, -}; - -/** - * Bytestream IO Context. - * New fields can be added to the end with minor version bumps. - * Removal, reordering and changes to existing fields require a major - * version bump. - * sizeof(AVIOContext) must not be used outside libav*. - * - * @note None of the function pointers in AVIOContext should be called - * directly, they should only be set by the client application - * when implementing custom I/O. Normally these are set to the - * function pointers specified in avio_alloc_context() - */ -typedef struct AVIOContext { - /** - * A class for private options. - * - * If this AVIOContext is created by avio_open2(), av_class is set and - * passes the options down to protocols. - * - * If this AVIOContext is manually allocated, then av_class may be set by - * the caller. - * - * warning -- this field can be NULL, be sure to not pass this AVIOContext - * to any av_opt_* functions in that case. - */ - const AVClass *av_class; - - /* - * The following shows the relationship between buffer, buf_ptr, - * buf_ptr_max, buf_end, buf_size, and pos, when reading and when writing - * (since AVIOContext is used for both): - * - ********************************************************************************** - * READING - ********************************************************************************** - * - * | buffer_size | - * |---------------------------------------| - * | | - * - * buffer buf_ptr buf_end - * +---------------+-----------------------+ - * |/ / / / / / / /|/ / / / / / /| | - * read buffer: |/ / consumed / | to be read /| | - * |/ / / / / / / /|/ / / / / / /| | - * +---------------+-----------------------+ - * - * pos - * +-------------------------------------------+-----------------+ - * input file: | | | - * +-------------------------------------------+-----------------+ - * - * - ********************************************************************************** - * WRITING - ********************************************************************************** - * - * | buffer_size | - * |--------------------------------------| - * | | - * - * buf_ptr_max - * buffer (buf_ptr) buf_end - * +-----------------------+--------------+ - * |/ / / / / / / / / / / /| | - * write buffer: | / / to be flushed / / | | - * |/ / / / / / / / / / / /| | - * +-----------------------+--------------+ - * buf_ptr can be in this - * due to a backward seek - * - * pos - * +-------------+----------------------------------------------+ - * output file: | | | - * +-------------+----------------------------------------------+ - * - */ - unsigned char *buffer; /**< Start of the buffer. */ - int buffer_size; /**< Maximum buffer size */ - unsigned char *buf_ptr; /**< Current position in the buffer */ - unsigned char *buf_end; /**< End of the data, may be less than - buffer+buffer_size if the read function returned - less data than requested, e.g. for streams where - no more data has been received yet. */ - void *opaque; /**< A private pointer, passed to the read/write/seek/... - functions. */ - int (*read_packet)(void *opaque, uint8_t *buf, int buf_size); - int (*write_packet)(void *opaque, uint8_t *buf, int buf_size); - int64_t (*seek)(void *opaque, int64_t offset, int whence); - int64_t pos; /**< position in the file of the current buffer */ - int eof_reached; /**< true if eof reached */ - int write_flag; /**< true if open for writing */ - int max_packet_size; - unsigned long checksum; - unsigned char *checksum_ptr; - unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size); - int error; /**< contains the error code or 0 if no error happened */ - /** - * Pause or resume playback for network streaming protocols - e.g. MMS. - */ - int (*read_pause)(void *opaque, int pause); - /** - * Seek to a given timestamp in stream with the specified stream_index. - * Needed for some network streaming protocols which don't support seeking - * to byte position. - */ - int64_t (*read_seek)(void *opaque, int stream_index, - int64_t timestamp, int flags); - /** - * A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable. - */ - int seekable; - - /** - * max filesize, used to limit allocations - * This field is internal to libavformat and access from outside is not allowed. - */ - int64_t maxsize; - - /** - * avio_read and avio_write should if possible be satisfied directly - * instead of going through a buffer, and avio_seek will always - * call the underlying seek function directly. - */ - int direct; - - /** - * Bytes read statistic - * This field is internal to libavformat and access from outside is not allowed. - */ - int64_t bytes_read; - - /** - * seek statistic - * This field is internal to libavformat and access from outside is not allowed. - */ - int seek_count; - - /** - * writeout statistic - * This field is internal to libavformat and access from outside is not allowed. - */ - int writeout_count; - - /** - * Original buffer size - * used internally after probing and ensure seekback to reset the buffer size - * This field is internal to libavformat and access from outside is not allowed. - */ - int orig_buffer_size; - - /** - * Threshold to favor readahead over seek. - * This is current internal only, do not use from outside. - */ - int short_seek_threshold; - - /** - * ',' separated list of allowed protocols. - */ - const char *protocol_whitelist; - - /** - * ',' separated list of disallowed protocols. - */ - const char *protocol_blacklist; - - /** - * A callback that is used instead of write_packet. - */ - int (*write_data_type)(void *opaque, uint8_t *buf, int buf_size, - enum AVIODataMarkerType type, int64_t time); - /** - * If set, don't call write_data_type separately for AVIO_DATA_MARKER_BOUNDARY_POINT, - * but ignore them and treat them as AVIO_DATA_MARKER_UNKNOWN (to avoid needlessly - * small chunks of data returned from the callback). - */ - int ignore_boundary_point; - - /** - * Internal, not meant to be used from outside of AVIOContext. - */ - enum AVIODataMarkerType current_type; - int64_t last_time; - - /** - * A callback that is used instead of short_seek_threshold. - * This is current internal only, do not use from outside. - */ - int (*short_seek_get)(void *opaque); - - int64_t written; - - /** - * Maximum reached position before a backward seek in the write buffer, - * used keeping track of already written data for a later flush. - */ - unsigned char *buf_ptr_max; - - /** - * Try to buffer at least this amount of data before flushing it - */ - int min_packet_size; -} AVIOContext; - -/** - * Return the name of the protocol that will handle the passed URL. - * - * NULL is returned if no protocol could be found for the given URL. - * - * @return Name of the protocol or NULL. - */ -const char *avio_find_protocol_name(const char *url); - -/** - * Return AVIO_FLAG_* access flags corresponding to the access permissions - * of the resource in url, or a negative value corresponding to an - * AVERROR code in case of failure. The returned access flags are - * masked by the value in flags. - * - * @note This function is intrinsically unsafe, in the sense that the - * checked resource may change its existence or permission status from - * one call to another. Thus you should not trust the returned value, - * unless you are sure that no other processes are accessing the - * checked resource. - */ -int avio_check(const char *url, int flags); - -/** - * Move or rename a resource. - * - * @note url_src and url_dst should share the same protocol and authority. - * - * @param url_src url to resource to be moved - * @param url_dst new url to resource if the operation succeeded - * @return >=0 on success or negative on error. - */ -int avpriv_io_move(const char *url_src, const char *url_dst); - -/** - * Delete a resource. - * - * @param url resource to be deleted. - * @return >=0 on success or negative on error. - */ -int avpriv_io_delete(const char *url); - -/** - * Open directory for reading. - * - * @param s directory read context. Pointer to a NULL pointer must be passed. - * @param url directory to be listed. - * @param options A dictionary filled with protocol-private options. On return - * this parameter will be destroyed and replaced with a dictionary - * containing options that were not found. May be NULL. - * @return >=0 on success or negative on error. - */ -int avio_open_dir(AVIODirContext **s, const char *url, AVDictionary **options); - -/** - * Get next directory entry. - * - * Returned entry must be freed with avio_free_directory_entry(). In particular - * it may outlive AVIODirContext. - * - * @param s directory read context. - * @param[out] next next entry or NULL when no more entries. - * @return >=0 on success or negative on error. End of list is not considered an - * error. - */ -int avio_read_dir(AVIODirContext *s, AVIODirEntry **next); - -/** - * Close directory. - * - * @note Entries created using avio_read_dir() are not deleted and must be - * freeded with avio_free_directory_entry(). - * - * @param s directory read context. - * @return >=0 on success or negative on error. - */ -int avio_close_dir(AVIODirContext **s); - -/** - * Free entry allocated by avio_read_dir(). - * - * @param entry entry to be freed. - */ -void avio_free_directory_entry(AVIODirEntry **entry); - -/** - * Allocate and initialize an AVIOContext for buffered I/O. It must be later - * freed with avio_context_free(). - * - * @param buffer Memory block for input/output operations via AVIOContext. - * The buffer must be allocated with av_malloc() and friends. - * It may be freed and replaced with a new buffer by libavformat. - * AVIOContext.buffer holds the buffer currently in use, - * which must be later freed with av_free(). - * @param buffer_size The buffer size is very important for performance. - * For protocols with fixed blocksize it should be set to this blocksize. - * For others a typical size is a cache page, e.g. 4kb. - * @param write_flag Set to 1 if the buffer should be writable, 0 otherwise. - * @param opaque An opaque pointer to user-specific data. - * @param read_packet A function for refilling the buffer, may be NULL. - * For stream protocols, must never return 0 but rather - * a proper AVERROR code. - * @param write_packet A function for writing the buffer contents, may be NULL. - * The function may not change the input buffers content. - * @param seek A function for seeking to specified byte position, may be NULL. - * - * @return Allocated AVIOContext or NULL on failure. - */ -AVIOContext *avio_alloc_context( - unsigned char *buffer, - int buffer_size, - int write_flag, - void *opaque, - int (*read_packet)(void *opaque, uint8_t *buf, int buf_size), - int (*write_packet)(void *opaque, uint8_t *buf, int buf_size), - int64_t (*seek)(void *opaque, int64_t offset, int whence)); - -/** - * Free the supplied IO context and everything associated with it. - * - * @param s Double pointer to the IO context. This function will write NULL - * into s. - */ -void avio_context_free(AVIOContext **s); - -void avio_w8(AVIOContext *s, int b); -void avio_write(AVIOContext *s, const unsigned char *buf, int size); -void avio_wl64(AVIOContext *s, uint64_t val); -void avio_wb64(AVIOContext *s, uint64_t val); -void avio_wl32(AVIOContext *s, unsigned int val); -void avio_wb32(AVIOContext *s, unsigned int val); -void avio_wl24(AVIOContext *s, unsigned int val); -void avio_wb24(AVIOContext *s, unsigned int val); -void avio_wl16(AVIOContext *s, unsigned int val); -void avio_wb16(AVIOContext *s, unsigned int val); - -/** - * Write a NULL-terminated string. - * @return number of bytes written. - */ -int avio_put_str(AVIOContext *s, const char *str); - -/** - * Convert an UTF-8 string to UTF-16LE and write it. - * @param s the AVIOContext - * @param str NULL-terminated UTF-8 string - * - * @return number of bytes written. - */ -int avio_put_str16le(AVIOContext *s, const char *str); - -/** - * Convert an UTF-8 string to UTF-16BE and write it. - * @param s the AVIOContext - * @param str NULL-terminated UTF-8 string - * - * @return number of bytes written. - */ -int avio_put_str16be(AVIOContext *s, const char *str); - -/** - * Mark the written bytestream as a specific type. - * - * Zero-length ranges are omitted from the output. - * - * @param time the stream time the current bytestream pos corresponds to - * (in AV_TIME_BASE units), or AV_NOPTS_VALUE if unknown or not - * applicable - * @param type the kind of data written starting at the current pos - */ -void avio_write_marker(AVIOContext *s, int64_t time, enum AVIODataMarkerType type); - -/** - * ORing this as the "whence" parameter to a seek function causes it to - * return the filesize without seeking anywhere. Supporting this is optional. - * If it is not supported then the seek function will return <0. - */ -#define AVSEEK_SIZE 0x10000 - -/** - * Passing this flag as the "whence" parameter to a seek function causes it to - * seek by any means (like reopening and linear reading) or other normally unreasonable - * means that can be extremely slow. - * This may be ignored by the seek code. - */ -#define AVSEEK_FORCE 0x20000 - -/** - * fseek() equivalent for AVIOContext. - * @return new position or AVERROR. - */ -int64_t avio_seek(AVIOContext *s, int64_t offset, int whence); - -/** - * Skip given number of bytes forward - * @return new position or AVERROR. - */ -int64_t avio_skip(AVIOContext *s, int64_t offset); - -/** - * ftell() equivalent for AVIOContext. - * @return position or AVERROR. - */ -static av_always_inline int64_t avio_tell(AVIOContext *s) -{ - return avio_seek(s, 0, SEEK_CUR); -} - -/** - * Get the filesize. - * @return filesize or AVERROR - */ -int64_t avio_size(AVIOContext *s); - -/** - * feof() equivalent for AVIOContext. - * @return non zero if and only if end of file - */ -int avio_feof(AVIOContext *s); - -/** @warning Writes up to 4 KiB per call */ -int avio_printf(AVIOContext *s, const char *fmt, ...) av_printf_format(2, 3); - -/** - * Force flushing of buffered data. - * - * For write streams, force the buffered data to be immediately written to the output, - * without to wait to fill the internal buffer. - * - * For read streams, discard all currently buffered data, and advance the - * reported file position to that of the underlying stream. This does not - * read new data, and does not perform any seeks. - */ -void avio_flush(AVIOContext *s); - -/** - * Read size bytes from AVIOContext into buf. - * @return number of bytes read or AVERROR - */ -int avio_read(AVIOContext *s, unsigned char *buf, int size); - -/** - * Read size bytes from AVIOContext into buf. Unlike avio_read(), this is allowed - * to read fewer bytes than requested. The missing bytes can be read in the next - * call. This always tries to read at least 1 byte. - * Useful to reduce latency in certain cases. - * @return number of bytes read or AVERROR - */ -int avio_read_partial(AVIOContext *s, unsigned char *buf, int size); - -/** - * @name Functions for reading from AVIOContext - * @{ - * - * @note return 0 if EOF, so you cannot use it if EOF handling is - * necessary - */ -int avio_r8 (AVIOContext *s); -unsigned int avio_rl16(AVIOContext *s); -unsigned int avio_rl24(AVIOContext *s); -unsigned int avio_rl32(AVIOContext *s); -uint64_t avio_rl64(AVIOContext *s); -unsigned int avio_rb16(AVIOContext *s); -unsigned int avio_rb24(AVIOContext *s); -unsigned int avio_rb32(AVIOContext *s); -uint64_t avio_rb64(AVIOContext *s); -/** - * @} - */ - -/** - * Read a string from pb into buf. The reading will terminate when either - * a NULL character was encountered, maxlen bytes have been read, or nothing - * more can be read from pb. The result is guaranteed to be NULL-terminated, it - * will be truncated if buf is too small. - * Note that the string is not interpreted or validated in any way, it - * might get truncated in the middle of a sequence for multi-byte encodings. - * - * @return number of bytes read (is always <= maxlen). - * If reading ends on EOF or error, the return value will be one more than - * bytes actually read. - */ -int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen); - -/** - * Read a UTF-16 string from pb and convert it to UTF-8. - * The reading will terminate when either a null or invalid character was - * encountered or maxlen bytes have been read. - * @return number of bytes read (is always <= maxlen) - */ -int avio_get_str16le(AVIOContext *pb, int maxlen, char *buf, int buflen); -int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen); - - -/** - * @name URL open modes - * The flags argument to avio_open must be one of the following - * constants, optionally ORed with other flags. - * @{ - */ -#define AVIO_FLAG_READ 1 /**< read-only */ -#define AVIO_FLAG_WRITE 2 /**< write-only */ -#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE) /**< read-write pseudo flag */ -/** - * @} - */ - -/** - * Use non-blocking mode. - * If this flag is set, operations on the context will return - * AVERROR(EAGAIN) if they can not be performed immediately. - * If this flag is not set, operations on the context will never return - * AVERROR(EAGAIN). - * Note that this flag does not affect the opening/connecting of the - * context. Connecting a protocol will always block if necessary (e.g. on - * network protocols) but never hang (e.g. on busy devices). - * Warning: non-blocking protocols is work-in-progress; this flag may be - * silently ignored. - */ -#define AVIO_FLAG_NONBLOCK 8 - -/** - * Use direct mode. - * avio_read and avio_write should if possible be satisfied directly - * instead of going through a buffer, and avio_seek will always - * call the underlying seek function directly. - */ -#define AVIO_FLAG_DIRECT 0x8000 - -/** - * Create and initialize a AVIOContext for accessing the - * resource indicated by url. - * @note When the resource indicated by url has been opened in - * read+write mode, the AVIOContext can be used only for writing. - * - * @param s Used to return the pointer to the created AVIOContext. - * In case of failure the pointed to value is set to NULL. - * @param url resource to access - * @param flags flags which control how the resource indicated by url - * is to be opened - * @return >= 0 in case of success, a negative value corresponding to an - * AVERROR code in case of failure - */ -int avio_open(AVIOContext **s, const char *url, int flags); - -/** - * Create and initialize a AVIOContext for accessing the - * resource indicated by url. - * @note When the resource indicated by url has been opened in - * read+write mode, the AVIOContext can be used only for writing. - * - * @param s Used to return the pointer to the created AVIOContext. - * In case of failure the pointed to value is set to NULL. - * @param url resource to access - * @param flags flags which control how the resource indicated by url - * is to be opened - * @param int_cb an interrupt callback to be used at the protocols level - * @param options A dictionary filled with protocol-private options. On return - * this parameter will be destroyed and replaced with a dict containing options - * that were not found. May be NULL. - * @return >= 0 in case of success, a negative value corresponding to an - * AVERROR code in case of failure - */ -int avio_open2(AVIOContext **s, const char *url, int flags, - const AVIOInterruptCB *int_cb, AVDictionary **options); - -/** - * Close the resource accessed by the AVIOContext s and free it. - * This function can only be used if s was opened by avio_open(). - * - * The internal buffer is automatically flushed before closing the - * resource. - * - * @return 0 on success, an AVERROR < 0 on error. - * @see avio_closep - */ -int avio_close(AVIOContext *s); - -/** - * Close the resource accessed by the AVIOContext *s, free it - * and set the pointer pointing to it to NULL. - * This function can only be used if s was opened by avio_open(). - * - * The internal buffer is automatically flushed before closing the - * resource. - * - * @return 0 on success, an AVERROR < 0 on error. - * @see avio_close - */ -int avio_closep(AVIOContext **s); - - -/** - * Open a write only memory stream. - * - * @param s new IO context - * @return zero if no error. - */ -int avio_open_dyn_buf(AVIOContext **s); - -/** - * Return the written size and a pointer to the buffer. - * The AVIOContext stream is left intact. - * The buffer must NOT be freed. - * No padding is added to the buffer. - * - * @param s IO context - * @param pbuffer pointer to a byte buffer - * @return the length of the byte buffer - */ -int avio_get_dyn_buf(AVIOContext *s, uint8_t **pbuffer); - -/** - * Return the written size and a pointer to the buffer. The buffer - * must be freed with av_free(). - * Padding of AV_INPUT_BUFFER_PADDING_SIZE is added to the buffer. - * - * @param s IO context - * @param pbuffer pointer to a byte buffer - * @return the length of the byte buffer - */ -int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer); - -/** - * Iterate through names of available protocols. - * - * @param opaque A private pointer representing current protocol. - * It must be a pointer to NULL on first iteration and will - * be updated by successive calls to avio_enum_protocols. - * @param output If set to 1, iterate over output protocols, - * otherwise over input protocols. - * - * @return A static string containing the name of current protocol or NULL - */ -const char *avio_enum_protocols(void **opaque, int output); - -/** - * Pause and resume playing - only meaningful if using a network streaming - * protocol (e.g. MMS). - * - * @param h IO context from which to call the read_pause function pointer - * @param pause 1 for pause, 0 for resume - */ -int avio_pause(AVIOContext *h, int pause); - -/** - * Seek to a given timestamp relative to some component stream. - * Only meaningful if using a network streaming protocol (e.g. MMS.). - * - * @param h IO context from which to call the seek function pointers - * @param stream_index The stream index that the timestamp is relative to. - * If stream_index is (-1) the timestamp should be in AV_TIME_BASE - * units from the beginning of the presentation. - * If a stream_index >= 0 is used and the protocol does not support - * seeking based on component streams, the call will fail. - * @param timestamp timestamp in AVStream.time_base units - * or if there is no stream specified then in AV_TIME_BASE units. - * @param flags Optional combination of AVSEEK_FLAG_BACKWARD, AVSEEK_FLAG_BYTE - * and AVSEEK_FLAG_ANY. The protocol may silently ignore - * AVSEEK_FLAG_BACKWARD and AVSEEK_FLAG_ANY, but AVSEEK_FLAG_BYTE will - * fail if used and not supported. - * @return >= 0 on success - * @see AVInputFormat::read_seek - */ -int64_t avio_seek_time(AVIOContext *h, int stream_index, - int64_t timestamp, int flags); - -/* Avoid a warning. The header can not be included because it breaks c++. */ -struct AVBPrint; - -/** - * Read contents of h into print buffer, up to max_size bytes, or up to EOF. - * - * @return 0 for success (max_size bytes read or EOF reached), negative error - * code otherwise - */ -int avio_read_to_bprint(AVIOContext *h, struct AVBPrint *pb, size_t max_size); - -/** - * Accept and allocate a client context on a server context. - * @param s the server context - * @param c the client context, must be unallocated - * @return >= 0 on success or a negative value corresponding - * to an AVERROR on failure - */ -int avio_accept(AVIOContext *s, AVIOContext **c); - -/** - * Perform one step of the protocol handshake to accept a new client. - * This function must be called on a client returned by avio_accept() before - * using it as a read/write context. - * It is separate from avio_accept() because it may block. - * A step of the handshake is defined by places where the application may - * decide to change the proceedings. - * For example, on a protocol with a request header and a reply header, each - * one can constitute a step because the application may use the parameters - * from the request to change parameters in the reply; or each individual - * chunk of the request can constitute a step. - * If the handshake is already finished, avio_handshake() does nothing and - * returns 0 immediately. - * - * @param c the client context to perform the handshake on - * @return 0 on a complete and successful handshake - * > 0 if the handshake progressed, but is not complete - * < 0 for an AVERROR code - */ -int avio_handshake(AVIOContext *c); -#endif /* AVFORMAT_AVIO_H */ diff --git a/libs/windows/include/libavformat/version.h b/libs/windows/include/libavformat/version.h deleted file mode 100644 index 57b6599e..00000000 --- a/libs/windows/include/libavformat/version.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - * Version macros. - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFORMAT_VERSION_H -#define AVFORMAT_VERSION_H - -/** - * @file - * @ingroup libavf - * Libavformat version macros - */ - -#include "libavutil/version.h" - -// Major bumping may affect Ticket5467, 5421, 5451(compatibility with Chromium) -// Also please add any ticket numbers that you believe might be affected here -#define LIBAVFORMAT_VERSION_MAJOR 58 -#define LIBAVFORMAT_VERSION_MINOR 17 -#define LIBAVFORMAT_VERSION_MICRO 101 - -#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ - LIBAVFORMAT_VERSION_MINOR, \ - LIBAVFORMAT_VERSION_MICRO) -#define LIBAVFORMAT_VERSION AV_VERSION(LIBAVFORMAT_VERSION_MAJOR, \ - LIBAVFORMAT_VERSION_MINOR, \ - LIBAVFORMAT_VERSION_MICRO) -#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT - -#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION) - -/** - * FF_API_* defines may be placed below to indicate public API that will be - * dropped at a future version bump. The defines themselves are not part of - * the public API and may change, break or disappear at any time. - * - * @note, when bumping the major version it is recommended to manually - * disable each FF_API_* in its own commit instead of disabling them all - * at once through the bump. This improves the git bisect-ability of the change. - * - */ -#ifndef FF_API_COMPUTE_PKT_FIELDS2 -#define FF_API_COMPUTE_PKT_FIELDS2 (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_OLD_OPEN_CALLBACKS -#define FF_API_OLD_OPEN_CALLBACKS (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_LAVF_AVCTX -#define FF_API_LAVF_AVCTX (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_HTTP_USER_AGENT -#define FF_API_HTTP_USER_AGENT (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_HLS_WRAP -#define FF_API_HLS_WRAP (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_LAVF_KEEPSIDE_FLAG -#define FF_API_LAVF_KEEPSIDE_FLAG (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_OLD_ROTATE_API -#define FF_API_OLD_ROTATE_API (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_FORMAT_GET_SET -#define FF_API_FORMAT_GET_SET (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_OLD_AVIO_EOF_0 -#define FF_API_OLD_AVIO_EOF_0 (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_LAVF_FFSERVER -#define FF_API_LAVF_FFSERVER (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_FORMAT_FILENAME -#define FF_API_FORMAT_FILENAME (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_OLD_RTSP_OPTIONS -#define FF_API_OLD_RTSP_OPTIONS (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_NEXT -#define FF_API_NEXT (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_DASH_MIN_SEG_DURATION -#define FF_API_DASH_MIN_SEG_DURATION (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif -#ifndef FF_API_LAVF_MP4A_LATM -#define FF_API_LAVF_MP4A_LATM (LIBAVFORMAT_VERSION_MAJOR < 59) -#endif - - -#ifndef FF_API_R_FRAME_RATE -#define FF_API_R_FRAME_RATE 1 -#endif -#endif /* AVFORMAT_VERSION_H */ diff --git a/libs/windows/include/libpostproc/postprocess.h b/libs/windows/include/libpostproc/postprocess.h deleted file mode 100644 index 348ee7cc..00000000 --- a/libs/windows/include/libpostproc/postprocess.h +++ /dev/null @@ -1,107 +0,0 @@ -/* - * Copyright (C) 2001-2003 Michael Niedermayer (michaelni@gmx.at) - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef POSTPROC_POSTPROCESS_H -#define POSTPROC_POSTPROCESS_H - -/** - * @file - * @ingroup lpp - * external API header - */ - -/** - * @defgroup lpp libpostproc - * Video postprocessing library. - * - * @{ - */ - -#include "libpostproc/version.h" - -/** - * Return the LIBPOSTPROC_VERSION_INT constant. - */ -unsigned postproc_version(void); - -/** - * Return the libpostproc build-time configuration. - */ -const char *postproc_configuration(void); - -/** - * Return the libpostproc license. - */ -const char *postproc_license(void); - -#define PP_QUALITY_MAX 6 - -#include - -typedef void pp_context; -typedef void pp_mode; - -#if LIBPOSTPROC_VERSION_INT < (52<<16) -typedef pp_context pp_context_t; -typedef pp_mode pp_mode_t; -extern const char *const pp_help; ///< a simple help text -#else -extern const char pp_help[]; ///< a simple help text -#endif - -void pp_postprocess(const uint8_t * src[3], const int srcStride[3], - uint8_t * dst[3], const int dstStride[3], - int horizontalSize, int verticalSize, - const int8_t *QP_store, int QP_stride, - pp_mode *mode, pp_context *ppContext, int pict_type); - - -/** - * Return a pp_mode or NULL if an error occurred. - * - * @param name the string after "-pp" on the command line - * @param quality a number from 0 to PP_QUALITY_MAX - */ -pp_mode *pp_get_mode_by_name_and_quality(const char *name, int quality); -void pp_free_mode(pp_mode *mode); - -pp_context *pp_get_context(int width, int height, int flags); -void pp_free_context(pp_context *ppContext); - -#define PP_CPU_CAPS_MMX 0x80000000 -#define PP_CPU_CAPS_MMX2 0x20000000 -#define PP_CPU_CAPS_3DNOW 0x40000000 -#define PP_CPU_CAPS_ALTIVEC 0x10000000 -#define PP_CPU_CAPS_AUTO 0x00080000 - -#define PP_FORMAT 0x00000008 -#define PP_FORMAT_420 (0x00000011|PP_FORMAT) -#define PP_FORMAT_422 (0x00000001|PP_FORMAT) -#define PP_FORMAT_411 (0x00000002|PP_FORMAT) -#define PP_FORMAT_444 (0x00000000|PP_FORMAT) -#define PP_FORMAT_440 (0x00000010|PP_FORMAT) - -#define PP_PICT_TYPE_QP2 0x00000010 ///< MPEG2 style QScale - -/** - * @} - */ - -#endif /* POSTPROC_POSTPROCESS_H */ diff --git a/libs/windows/include/libpostproc/version.h b/libs/windows/include/libpostproc/version.h deleted file mode 100644 index f3725483..00000000 --- a/libs/windows/include/libpostproc/version.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Version macros. - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef POSTPROC_VERSION_H -#define POSTPROC_VERSION_H - -/** - * @file - * Libpostproc version macros - */ - -#include "libavutil/avutil.h" - -#define LIBPOSTPROC_VERSION_MAJOR 55 -#define LIBPOSTPROC_VERSION_MINOR 2 -#define LIBPOSTPROC_VERSION_MICRO 100 - -#define LIBPOSTPROC_VERSION_INT AV_VERSION_INT(LIBPOSTPROC_VERSION_MAJOR, \ - LIBPOSTPROC_VERSION_MINOR, \ - LIBPOSTPROC_VERSION_MICRO) -#define LIBPOSTPROC_VERSION AV_VERSION(LIBPOSTPROC_VERSION_MAJOR, \ - LIBPOSTPROC_VERSION_MINOR, \ - LIBPOSTPROC_VERSION_MICRO) -#define LIBPOSTPROC_BUILD LIBPOSTPROC_VERSION_INT - -#define LIBPOSTPROC_IDENT "postproc" AV_STRINGIFY(LIBPOSTPROC_VERSION) - -#endif /* POSTPROC_VERSION_H */ diff --git a/libs/windows/include/libswresample/swresample.h b/libs/windows/include/libswresample/swresample.h deleted file mode 100644 index c7b84fbc..00000000 --- a/libs/windows/include/libswresample/swresample.h +++ /dev/null @@ -1,579 +0,0 @@ -/* - * Copyright (C) 2011-2013 Michael Niedermayer (michaelni@gmx.at) - * - * This file is part of libswresample - * - * libswresample is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * libswresample is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with libswresample; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef SWRESAMPLE_SWRESAMPLE_H -#define SWRESAMPLE_SWRESAMPLE_H - -/** - * @file - * @ingroup lswr - * libswresample public header - */ - -/** - * @defgroup lswr libswresample - * @{ - * - * Audio resampling, sample format conversion and mixing library. - * - * Interaction with lswr is done through SwrContext, which is - * allocated with swr_alloc() or swr_alloc_set_opts(). It is opaque, so all parameters - * must be set with the @ref avoptions API. - * - * The first thing you will need to do in order to use lswr is to allocate - * SwrContext. This can be done with swr_alloc() or swr_alloc_set_opts(). If you - * are using the former, you must set options through the @ref avoptions API. - * The latter function provides the same feature, but it allows you to set some - * common options in the same statement. - * - * For example the following code will setup conversion from planar float sample - * format to interleaved signed 16-bit integer, downsampling from 48kHz to - * 44.1kHz and downmixing from 5.1 channels to stereo (using the default mixing - * matrix). This is using the swr_alloc() function. - * @code - * SwrContext *swr = swr_alloc(); - * av_opt_set_channel_layout(swr, "in_channel_layout", AV_CH_LAYOUT_5POINT1, 0); - * av_opt_set_channel_layout(swr, "out_channel_layout", AV_CH_LAYOUT_STEREO, 0); - * av_opt_set_int(swr, "in_sample_rate", 48000, 0); - * av_opt_set_int(swr, "out_sample_rate", 44100, 0); - * av_opt_set_sample_fmt(swr, "in_sample_fmt", AV_SAMPLE_FMT_FLTP, 0); - * av_opt_set_sample_fmt(swr, "out_sample_fmt", AV_SAMPLE_FMT_S16, 0); - * @endcode - * - * The same job can be done using swr_alloc_set_opts() as well: - * @code - * SwrContext *swr = swr_alloc_set_opts(NULL, // we're allocating a new context - * AV_CH_LAYOUT_STEREO, // out_ch_layout - * AV_SAMPLE_FMT_S16, // out_sample_fmt - * 44100, // out_sample_rate - * AV_CH_LAYOUT_5POINT1, // in_ch_layout - * AV_SAMPLE_FMT_FLTP, // in_sample_fmt - * 48000, // in_sample_rate - * 0, // log_offset - * NULL); // log_ctx - * @endcode - * - * Once all values have been set, it must be initialized with swr_init(). If - * you need to change the conversion parameters, you can change the parameters - * using @ref AVOptions, as described above in the first example; or by using - * swr_alloc_set_opts(), but with the first argument the allocated context. - * You must then call swr_init() again. - * - * The conversion itself is done by repeatedly calling swr_convert(). - * Note that the samples may get buffered in swr if you provide insufficient - * output space or if sample rate conversion is done, which requires "future" - * samples. Samples that do not require future input can be retrieved at any - * time by using swr_convert() (in_count can be set to 0). - * At the end of conversion the resampling buffer can be flushed by calling - * swr_convert() with NULL in and 0 in_count. - * - * The samples used in the conversion process can be managed with the libavutil - * @ref lavu_sampmanip "samples manipulation" API, including av_samples_alloc() - * function used in the following example. - * - * The delay between input and output, can at any time be found by using - * swr_get_delay(). - * - * The following code demonstrates the conversion loop assuming the parameters - * from above and caller-defined functions get_input() and handle_output(): - * @code - * uint8_t **input; - * int in_samples; - * - * while (get_input(&input, &in_samples)) { - * uint8_t *output; - * int out_samples = av_rescale_rnd(swr_get_delay(swr, 48000) + - * in_samples, 44100, 48000, AV_ROUND_UP); - * av_samples_alloc(&output, NULL, 2, out_samples, - * AV_SAMPLE_FMT_S16, 0); - * out_samples = swr_convert(swr, &output, out_samples, - * input, in_samples); - * handle_output(output, out_samples); - * av_freep(&output); - * } - * @endcode - * - * When the conversion is finished, the conversion - * context and everything associated with it must be freed with swr_free(). - * A swr_close() function is also available, but it exists mainly for - * compatibility with libavresample, and is not required to be called. - * - * There will be no memory leak if the data is not completely flushed before - * swr_free(). - */ - -#include -#include "libavutil/channel_layout.h" -#include "libavutil/frame.h" -#include "libavutil/samplefmt.h" - -#include "libswresample/version.h" - -/** - * @name Option constants - * These constants are used for the @ref avoptions interface for lswr. - * @{ - * - */ - -#define SWR_FLAG_RESAMPLE 1 ///< Force resampling even if equal sample rate -//TODO use int resample ? -//long term TODO can we enable this dynamically? - -/** Dithering algorithms */ -enum SwrDitherType { - SWR_DITHER_NONE = 0, - SWR_DITHER_RECTANGULAR, - SWR_DITHER_TRIANGULAR, - SWR_DITHER_TRIANGULAR_HIGHPASS, - - SWR_DITHER_NS = 64, ///< not part of API/ABI - SWR_DITHER_NS_LIPSHITZ, - SWR_DITHER_NS_F_WEIGHTED, - SWR_DITHER_NS_MODIFIED_E_WEIGHTED, - SWR_DITHER_NS_IMPROVED_E_WEIGHTED, - SWR_DITHER_NS_SHIBATA, - SWR_DITHER_NS_LOW_SHIBATA, - SWR_DITHER_NS_HIGH_SHIBATA, - SWR_DITHER_NB, ///< not part of API/ABI -}; - -/** Resampling Engines */ -enum SwrEngine { - SWR_ENGINE_SWR, /**< SW Resampler */ - SWR_ENGINE_SOXR, /**< SoX Resampler */ - SWR_ENGINE_NB, ///< not part of API/ABI -}; - -/** Resampling Filter Types */ -enum SwrFilterType { - SWR_FILTER_TYPE_CUBIC, /**< Cubic */ - SWR_FILTER_TYPE_BLACKMAN_NUTTALL, /**< Blackman Nuttall windowed sinc */ - SWR_FILTER_TYPE_KAISER, /**< Kaiser windowed sinc */ -}; - -/** - * @} - */ - -/** - * The libswresample context. Unlike libavcodec and libavformat, this structure - * is opaque. This means that if you would like to set options, you must use - * the @ref avoptions API and cannot directly set values to members of the - * structure. - */ -typedef struct SwrContext SwrContext; - -/** - * Get the AVClass for SwrContext. It can be used in combination with - * AV_OPT_SEARCH_FAKE_OBJ for examining options. - * - * @see av_opt_find(). - * @return the AVClass of SwrContext - */ -const AVClass *swr_get_class(void); - -/** - * @name SwrContext constructor functions - * @{ - */ - -/** - * Allocate SwrContext. - * - * If you use this function you will need to set the parameters (manually or - * with swr_alloc_set_opts()) before calling swr_init(). - * - * @see swr_alloc_set_opts(), swr_init(), swr_free() - * @return NULL on error, allocated context otherwise - */ -struct SwrContext *swr_alloc(void); - -/** - * Initialize context after user parameters have been set. - * @note The context must be configured using the AVOption API. - * - * @see av_opt_set_int() - * @see av_opt_set_dict() - * - * @param[in,out] s Swr context to initialize - * @return AVERROR error code in case of failure. - */ -int swr_init(struct SwrContext *s); - -/** - * Check whether an swr context has been initialized or not. - * - * @param[in] s Swr context to check - * @see swr_init() - * @return positive if it has been initialized, 0 if not initialized - */ -int swr_is_initialized(struct SwrContext *s); - -/** - * Allocate SwrContext if needed and set/reset common parameters. - * - * This function does not require s to be allocated with swr_alloc(). On the - * other hand, swr_alloc() can use swr_alloc_set_opts() to set the parameters - * on the allocated context. - * - * @param s existing Swr context if available, or NULL if not - * @param out_ch_layout output channel layout (AV_CH_LAYOUT_*) - * @param out_sample_fmt output sample format (AV_SAMPLE_FMT_*). - * @param out_sample_rate output sample rate (frequency in Hz) - * @param in_ch_layout input channel layout (AV_CH_LAYOUT_*) - * @param in_sample_fmt input sample format (AV_SAMPLE_FMT_*). - * @param in_sample_rate input sample rate (frequency in Hz) - * @param log_offset logging level offset - * @param log_ctx parent logging context, can be NULL - * - * @see swr_init(), swr_free() - * @return NULL on error, allocated context otherwise - */ -struct SwrContext *swr_alloc_set_opts(struct SwrContext *s, - int64_t out_ch_layout, enum AVSampleFormat out_sample_fmt, int out_sample_rate, - int64_t in_ch_layout, enum AVSampleFormat in_sample_fmt, int in_sample_rate, - int log_offset, void *log_ctx); - -/** - * @} - * - * @name SwrContext destructor functions - * @{ - */ - -/** - * Free the given SwrContext and set the pointer to NULL. - * - * @param[in] s a pointer to a pointer to Swr context - */ -void swr_free(struct SwrContext **s); - -/** - * Closes the context so that swr_is_initialized() returns 0. - * - * The context can be brought back to life by running swr_init(), - * swr_init() can also be used without swr_close(). - * This function is mainly provided for simplifying the usecase - * where one tries to support libavresample and libswresample. - * - * @param[in,out] s Swr context to be closed - */ -void swr_close(struct SwrContext *s); - -/** - * @} - * - * @name Core conversion functions - * @{ - */ - -/** Convert audio. - * - * in and in_count can be set to 0 to flush the last few samples out at the - * end. - * - * If more input is provided than output space, then the input will be buffered. - * You can avoid this buffering by using swr_get_out_samples() to retrieve an - * upper bound on the required number of output samples for the given number of - * input samples. Conversion will run directly without copying whenever possible. - * - * @param s allocated Swr context, with parameters set - * @param out output buffers, only the first one need be set in case of packed audio - * @param out_count amount of space available for output in samples per channel - * @param in input buffers, only the first one need to be set in case of packed audio - * @param in_count number of input samples available in one channel - * - * @return number of samples output per channel, negative value on error - */ -int swr_convert(struct SwrContext *s, uint8_t **out, int out_count, - const uint8_t **in , int in_count); - -/** - * Convert the next timestamp from input to output - * timestamps are in 1/(in_sample_rate * out_sample_rate) units. - * - * @note There are 2 slightly differently behaving modes. - * @li When automatic timestamp compensation is not used, (min_compensation >= FLT_MAX) - * in this case timestamps will be passed through with delays compensated - * @li When automatic timestamp compensation is used, (min_compensation < FLT_MAX) - * in this case the output timestamps will match output sample numbers. - * See ffmpeg-resampler(1) for the two modes of compensation. - * - * @param s[in] initialized Swr context - * @param pts[in] timestamp for the next input sample, INT64_MIN if unknown - * @see swr_set_compensation(), swr_drop_output(), and swr_inject_silence() are - * function used internally for timestamp compensation. - * @return the output timestamp for the next output sample - */ -int64_t swr_next_pts(struct SwrContext *s, int64_t pts); - -/** - * @} - * - * @name Low-level option setting functions - * These functons provide a means to set low-level options that is not possible - * with the AVOption API. - * @{ - */ - -/** - * Activate resampling compensation ("soft" compensation). This function is - * internally called when needed in swr_next_pts(). - * - * @param[in,out] s allocated Swr context. If it is not initialized, - * or SWR_FLAG_RESAMPLE is not set, swr_init() is - * called with the flag set. - * @param[in] sample_delta delta in PTS per sample - * @param[in] compensation_distance number of samples to compensate for - * @return >= 0 on success, AVERROR error codes if: - * @li @c s is NULL, - * @li @c compensation_distance is less than 0, - * @li @c compensation_distance is 0 but sample_delta is not, - * @li compensation unsupported by resampler, or - * @li swr_init() fails when called. - */ -int swr_set_compensation(struct SwrContext *s, int sample_delta, int compensation_distance); - -/** - * Set a customized input channel mapping. - * - * @param[in,out] s allocated Swr context, not yet initialized - * @param[in] channel_map customized input channel mapping (array of channel - * indexes, -1 for a muted channel) - * @return >= 0 on success, or AVERROR error code in case of failure. - */ -int swr_set_channel_mapping(struct SwrContext *s, const int *channel_map); - -/** - * Generate a channel mixing matrix. - * - * This function is the one used internally by libswresample for building the - * default mixing matrix. It is made public just as a utility function for - * building custom matrices. - * - * @param in_layout input channel layout - * @param out_layout output channel layout - * @param center_mix_level mix level for the center channel - * @param surround_mix_level mix level for the surround channel(s) - * @param lfe_mix_level mix level for the low-frequency effects channel - * @param rematrix_maxval if 1.0, coefficients will be normalized to prevent - * overflow. if INT_MAX, coefficients will not be - * normalized. - * @param[out] matrix mixing coefficients; matrix[i + stride * o] is - * the weight of input channel i in output channel o. - * @param stride distance between adjacent input channels in the - * matrix array - * @param matrix_encoding matrixed stereo downmix mode (e.g. dplii) - * @param log_ctx parent logging context, can be NULL - * @return 0 on success, negative AVERROR code on failure - */ -int swr_build_matrix(uint64_t in_layout, uint64_t out_layout, - double center_mix_level, double surround_mix_level, - double lfe_mix_level, double rematrix_maxval, - double rematrix_volume, double *matrix, - int stride, enum AVMatrixEncoding matrix_encoding, - void *log_ctx); - -/** - * Set a customized remix matrix. - * - * @param s allocated Swr context, not yet initialized - * @param matrix remix coefficients; matrix[i + stride * o] is - * the weight of input channel i in output channel o - * @param stride offset between lines of the matrix - * @return >= 0 on success, or AVERROR error code in case of failure. - */ -int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride); - -/** - * @} - * - * @name Sample handling functions - * @{ - */ - -/** - * Drops the specified number of output samples. - * - * This function, along with swr_inject_silence(), is called by swr_next_pts() - * if needed for "hard" compensation. - * - * @param s allocated Swr context - * @param count number of samples to be dropped - * - * @return >= 0 on success, or a negative AVERROR code on failure - */ -int swr_drop_output(struct SwrContext *s, int count); - -/** - * Injects the specified number of silence samples. - * - * This function, along with swr_drop_output(), is called by swr_next_pts() - * if needed for "hard" compensation. - * - * @param s allocated Swr context - * @param count number of samples to be dropped - * - * @return >= 0 on success, or a negative AVERROR code on failure - */ -int swr_inject_silence(struct SwrContext *s, int count); - -/** - * Gets the delay the next input sample will experience relative to the next output sample. - * - * Swresample can buffer data if more input has been provided than available - * output space, also converting between sample rates needs a delay. - * This function returns the sum of all such delays. - * The exact delay is not necessarily an integer value in either input or - * output sample rate. Especially when downsampling by a large value, the - * output sample rate may be a poor choice to represent the delay, similarly - * for upsampling and the input sample rate. - * - * @param s swr context - * @param base timebase in which the returned delay will be: - * @li if it's set to 1 the returned delay is in seconds - * @li if it's set to 1000 the returned delay is in milliseconds - * @li if it's set to the input sample rate then the returned - * delay is in input samples - * @li if it's set to the output sample rate then the returned - * delay is in output samples - * @li if it's the least common multiple of in_sample_rate and - * out_sample_rate then an exact rounding-free delay will be - * returned - * @returns the delay in 1 / @c base units. - */ -int64_t swr_get_delay(struct SwrContext *s, int64_t base); - -/** - * Find an upper bound on the number of samples that the next swr_convert - * call will output, if called with in_samples of input samples. This - * depends on the internal state, and anything changing the internal state - * (like further swr_convert() calls) will may change the number of samples - * swr_get_out_samples() returns for the same number of input samples. - * - * @param in_samples number of input samples. - * @note any call to swr_inject_silence(), swr_convert(), swr_next_pts() - * or swr_set_compensation() invalidates this limit - * @note it is recommended to pass the correct available buffer size - * to all functions like swr_convert() even if swr_get_out_samples() - * indicates that less would be used. - * @returns an upper bound on the number of samples that the next swr_convert - * will output or a negative value to indicate an error - */ -int swr_get_out_samples(struct SwrContext *s, int in_samples); - -/** - * @} - * - * @name Configuration accessors - * @{ - */ - -/** - * Return the @ref LIBSWRESAMPLE_VERSION_INT constant. - * - * This is useful to check if the build-time libswresample has the same version - * as the run-time one. - * - * @returns the unsigned int-typed version - */ -unsigned swresample_version(void); - -/** - * Return the swr build-time configuration. - * - * @returns the build-time @c ./configure flags - */ -const char *swresample_configuration(void); - -/** - * Return the swr license. - * - * @returns the license of libswresample, determined at build-time - */ -const char *swresample_license(void); - -/** - * @} - * - * @name AVFrame based API - * @{ - */ - -/** - * Convert the samples in the input AVFrame and write them to the output AVFrame. - * - * Input and output AVFrames must have channel_layout, sample_rate and format set. - * - * If the output AVFrame does not have the data pointers allocated the nb_samples - * field will be set using av_frame_get_buffer() - * is called to allocate the frame. - * - * The output AVFrame can be NULL or have fewer allocated samples than required. - * In this case, any remaining samples not written to the output will be added - * to an internal FIFO buffer, to be returned at the next call to this function - * or to swr_convert(). - * - * If converting sample rate, there may be data remaining in the internal - * resampling delay buffer. swr_get_delay() tells the number of - * remaining samples. To get this data as output, call this function or - * swr_convert() with NULL input. - * - * If the SwrContext configuration does not match the output and - * input AVFrame settings the conversion does not take place and depending on - * which AVFrame is not matching AVERROR_OUTPUT_CHANGED, AVERROR_INPUT_CHANGED - * or the result of a bitwise-OR of them is returned. - * - * @see swr_delay() - * @see swr_convert() - * @see swr_get_delay() - * - * @param swr audio resample context - * @param output output AVFrame - * @param input input AVFrame - * @return 0 on success, AVERROR on failure or nonmatching - * configuration. - */ -int swr_convert_frame(SwrContext *swr, - AVFrame *output, const AVFrame *input); - -/** - * Configure or reconfigure the SwrContext using the information - * provided by the AVFrames. - * - * The original resampling context is reset even on failure. - * The function calls swr_close() internally if the context is open. - * - * @see swr_close(); - * - * @param swr audio resample context - * @param output output AVFrame - * @param input input AVFrame - * @return 0 on success, AVERROR on failure. - */ -int swr_config_frame(SwrContext *swr, const AVFrame *out, const AVFrame *in); - -/** - * @} - * @} - */ - -#endif /* SWRESAMPLE_SWRESAMPLE_H */ diff --git a/libs/windows/include/libswresample/version.h b/libs/windows/include/libswresample/version.h deleted file mode 100644 index b8b5bee9..00000000 --- a/libs/windows/include/libswresample/version.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Version macros. - * - * This file is part of libswresample - * - * libswresample is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * libswresample is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with libswresample; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef SWRESAMPLE_VERSION_H -#define SWRESAMPLE_VERSION_H - -/** - * @file - * Libswresample version macros - */ - -#include "libavutil/avutil.h" - -#define LIBSWRESAMPLE_VERSION_MAJOR 3 -#define LIBSWRESAMPLE_VERSION_MINOR 2 -#define LIBSWRESAMPLE_VERSION_MICRO 100 - -#define LIBSWRESAMPLE_VERSION_INT AV_VERSION_INT(LIBSWRESAMPLE_VERSION_MAJOR, \ - LIBSWRESAMPLE_VERSION_MINOR, \ - LIBSWRESAMPLE_VERSION_MICRO) -#define LIBSWRESAMPLE_VERSION AV_VERSION(LIBSWRESAMPLE_VERSION_MAJOR, \ - LIBSWRESAMPLE_VERSION_MINOR, \ - LIBSWRESAMPLE_VERSION_MICRO) -#define LIBSWRESAMPLE_BUILD LIBSWRESAMPLE_VERSION_INT - -#define LIBSWRESAMPLE_IDENT "SwR" AV_STRINGIFY(LIBSWRESAMPLE_VERSION) - -#endif /* SWRESAMPLE_VERSION_H */ diff --git a/libs/windows/include/libswscale/swscale.h b/libs/windows/include/libswscale/swscale.h deleted file mode 100644 index 7713f51e..00000000 --- a/libs/windows/include/libswscale/swscale.h +++ /dev/null @@ -1,336 +0,0 @@ -/* - * Copyright (C) 2001-2011 Michael Niedermayer - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef SWSCALE_SWSCALE_H -#define SWSCALE_SWSCALE_H - -/** - * @file - * @ingroup libsws - * external API header - */ - -#include - -#include "libavutil/avutil.h" -#include "libavutil/log.h" -#include "libavutil/pixfmt.h" -#include "version.h" - -/** - * @defgroup libsws libswscale - * Color conversion and scaling library. - * - * @{ - * - * Return the LIBSWSCALE_VERSION_INT constant. - */ -unsigned swscale_version(void); - -/** - * Return the libswscale build-time configuration. - */ -const char *swscale_configuration(void); - -/** - * Return the libswscale license. - */ -const char *swscale_license(void); - -/* values for the flags, the stuff on the command line is different */ -#define SWS_FAST_BILINEAR 1 -#define SWS_BILINEAR 2 -#define SWS_BICUBIC 4 -#define SWS_X 8 -#define SWS_POINT 0x10 -#define SWS_AREA 0x20 -#define SWS_BICUBLIN 0x40 -#define SWS_GAUSS 0x80 -#define SWS_SINC 0x100 -#define SWS_LANCZOS 0x200 -#define SWS_SPLINE 0x400 - -#define SWS_SRC_V_CHR_DROP_MASK 0x30000 -#define SWS_SRC_V_CHR_DROP_SHIFT 16 - -#define SWS_PARAM_DEFAULT 123456 - -#define SWS_PRINT_INFO 0x1000 - -//the following 3 flags are not completely implemented -//internal chrominance subsampling info -#define SWS_FULL_CHR_H_INT 0x2000 -//input subsampling info -#define SWS_FULL_CHR_H_INP 0x4000 -#define SWS_DIRECT_BGR 0x8000 -#define SWS_ACCURATE_RND 0x40000 -#define SWS_BITEXACT 0x80000 -#define SWS_ERROR_DIFFUSION 0x800000 - -#define SWS_MAX_REDUCE_CUTOFF 0.002 - -#define SWS_CS_ITU709 1 -#define SWS_CS_FCC 4 -#define SWS_CS_ITU601 5 -#define SWS_CS_ITU624 5 -#define SWS_CS_SMPTE170M 5 -#define SWS_CS_SMPTE240M 7 -#define SWS_CS_DEFAULT 5 -#define SWS_CS_BT2020 9 - -/** - * Return a pointer to yuv<->rgb coefficients for the given colorspace - * suitable for sws_setColorspaceDetails(). - * - * @param colorspace One of the SWS_CS_* macros. If invalid, - * SWS_CS_DEFAULT is used. - */ -const int *sws_getCoefficients(int colorspace); - -// when used for filters they must have an odd number of elements -// coeffs cannot be shared between vectors -typedef struct SwsVector { - double *coeff; ///< pointer to the list of coefficients - int length; ///< number of coefficients in the vector -} SwsVector; - -// vectors can be shared -typedef struct SwsFilter { - SwsVector *lumH; - SwsVector *lumV; - SwsVector *chrH; - SwsVector *chrV; -} SwsFilter; - -struct SwsContext; - -/** - * Return a positive value if pix_fmt is a supported input format, 0 - * otherwise. - */ -int sws_isSupportedInput(enum AVPixelFormat pix_fmt); - -/** - * Return a positive value if pix_fmt is a supported output format, 0 - * otherwise. - */ -int sws_isSupportedOutput(enum AVPixelFormat pix_fmt); - -/** - * @param[in] pix_fmt the pixel format - * @return a positive value if an endianness conversion for pix_fmt is - * supported, 0 otherwise. - */ -int sws_isSupportedEndiannessConversion(enum AVPixelFormat pix_fmt); - -/** - * Allocate an empty SwsContext. This must be filled and passed to - * sws_init_context(). For filling see AVOptions, options.c and - * sws_setColorspaceDetails(). - */ -struct SwsContext *sws_alloc_context(void); - -/** - * Initialize the swscaler context sws_context. - * - * @return zero or positive value on success, a negative value on - * error - */ -av_warn_unused_result -int sws_init_context(struct SwsContext *sws_context, SwsFilter *srcFilter, SwsFilter *dstFilter); - -/** - * Free the swscaler context swsContext. - * If swsContext is NULL, then does nothing. - */ -void sws_freeContext(struct SwsContext *swsContext); - -/** - * Allocate and return an SwsContext. You need it to perform - * scaling/conversion operations using sws_scale(). - * - * @param srcW the width of the source image - * @param srcH the height of the source image - * @param srcFormat the source image format - * @param dstW the width of the destination image - * @param dstH the height of the destination image - * @param dstFormat the destination image format - * @param flags specify which algorithm and options to use for rescaling - * @param param extra parameters to tune the used scaler - * For SWS_BICUBIC param[0] and [1] tune the shape of the basis - * function, param[0] tunes f(1) and param[1] f´(1) - * For SWS_GAUSS param[0] tunes the exponent and thus cutoff - * frequency - * For SWS_LANCZOS param[0] tunes the width of the window function - * @return a pointer to an allocated context, or NULL in case of error - * @note this function is to be removed after a saner alternative is - * written - */ -struct SwsContext *sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat, - int dstW, int dstH, enum AVPixelFormat dstFormat, - int flags, SwsFilter *srcFilter, - SwsFilter *dstFilter, const double *param); - -/** - * Scale the image slice in srcSlice and put the resulting scaled - * slice in the image in dst. A slice is a sequence of consecutive - * rows in an image. - * - * Slices have to be provided in sequential order, either in - * top-bottom or bottom-top order. If slices are provided in - * non-sequential order the behavior of the function is undefined. - * - * @param c the scaling context previously created with - * sws_getContext() - * @param srcSlice the array containing the pointers to the planes of - * the source slice - * @param srcStride the array containing the strides for each plane of - * the source image - * @param srcSliceY the position in the source image of the slice to - * process, that is the number (counted starting from - * zero) in the image of the first row of the slice - * @param srcSliceH the height of the source slice, that is the number - * of rows in the slice - * @param dst the array containing the pointers to the planes of - * the destination image - * @param dstStride the array containing the strides for each plane of - * the destination image - * @return the height of the output slice - */ -int sws_scale(struct SwsContext *c, const uint8_t *const srcSlice[], - const int srcStride[], int srcSliceY, int srcSliceH, - uint8_t *const dst[], const int dstStride[]); - -/** - * @param dstRange flag indicating the while-black range of the output (1=jpeg / 0=mpeg) - * @param srcRange flag indicating the while-black range of the input (1=jpeg / 0=mpeg) - * @param table the yuv2rgb coefficients describing the output yuv space, normally ff_yuv2rgb_coeffs[x] - * @param inv_table the yuv2rgb coefficients describing the input yuv space, normally ff_yuv2rgb_coeffs[x] - * @param brightness 16.16 fixed point brightness correction - * @param contrast 16.16 fixed point contrast correction - * @param saturation 16.16 fixed point saturation correction - * @return -1 if not supported - */ -int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4], - int srcRange, const int table[4], int dstRange, - int brightness, int contrast, int saturation); - -/** - * @return -1 if not supported - */ -int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table, - int *srcRange, int **table, int *dstRange, - int *brightness, int *contrast, int *saturation); - -/** - * Allocate and return an uninitialized vector with length coefficients. - */ -SwsVector *sws_allocVec(int length); - -/** - * Return a normalized Gaussian curve used to filter stuff - * quality = 3 is high quality, lower is lower quality. - */ -SwsVector *sws_getGaussianVec(double variance, double quality); - -/** - * Scale all the coefficients of a by the scalar value. - */ -void sws_scaleVec(SwsVector *a, double scalar); - -/** - * Scale all the coefficients of a so that their sum equals height. - */ -void sws_normalizeVec(SwsVector *a, double height); - -#if FF_API_SWS_VECTOR -attribute_deprecated SwsVector *sws_getConstVec(double c, int length); -attribute_deprecated SwsVector *sws_getIdentityVec(void); -attribute_deprecated void sws_convVec(SwsVector *a, SwsVector *b); -attribute_deprecated void sws_addVec(SwsVector *a, SwsVector *b); -attribute_deprecated void sws_subVec(SwsVector *a, SwsVector *b); -attribute_deprecated void sws_shiftVec(SwsVector *a, int shift); -attribute_deprecated SwsVector *sws_cloneVec(SwsVector *a); -attribute_deprecated void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level); -#endif - -void sws_freeVec(SwsVector *a); - -SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, - float lumaSharpen, float chromaSharpen, - float chromaHShift, float chromaVShift, - int verbose); -void sws_freeFilter(SwsFilter *filter); - -/** - * Check if context can be reused, otherwise reallocate a new one. - * - * If context is NULL, just calls sws_getContext() to get a new - * context. Otherwise, checks if the parameters are the ones already - * saved in context. If that is the case, returns the current - * context. Otherwise, frees context and gets a new context with - * the new parameters. - * - * Be warned that srcFilter and dstFilter are not checked, they - * are assumed to remain the same. - */ -struct SwsContext *sws_getCachedContext(struct SwsContext *context, - int srcW, int srcH, enum AVPixelFormat srcFormat, - int dstW, int dstH, enum AVPixelFormat dstFormat, - int flags, SwsFilter *srcFilter, - SwsFilter *dstFilter, const double *param); - -/** - * Convert an 8-bit paletted frame into a frame with a color depth of 32 bits. - * - * The output frame will have the same packed format as the palette. - * - * @param src source frame buffer - * @param dst destination frame buffer - * @param num_pixels number of pixels to convert - * @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src - */ -void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette); - -/** - * Convert an 8-bit paletted frame into a frame with a color depth of 24 bits. - * - * With the palette format "ABCD", the destination frame ends up with the format "ABC". - * - * @param src source frame buffer - * @param dst destination frame buffer - * @param num_pixels number of pixels to convert - * @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src - */ -void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette); - -/** - * Get the AVClass for swsContext. It can be used in combination with - * AV_OPT_SEARCH_FAKE_OBJ for examining options. - * - * @see av_opt_find(). - */ -const AVClass *sws_get_class(void); - -/** - * @} - */ - -#endif /* SWSCALE_SWSCALE_H */ diff --git a/libs/windows/include/libswscale/version.h b/libs/windows/include/libswscale/version.h deleted file mode 100644 index a07bd717..00000000 --- a/libs/windows/include/libswscale/version.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef SWSCALE_VERSION_H -#define SWSCALE_VERSION_H - -/** - * @file - * swscale version macros - */ - -#include "libavutil/version.h" - -#define LIBSWSCALE_VERSION_MAJOR 5 -#define LIBSWSCALE_VERSION_MINOR 2 -#define LIBSWSCALE_VERSION_MICRO 100 - -#define LIBSWSCALE_VERSION_INT AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \ - LIBSWSCALE_VERSION_MINOR, \ - LIBSWSCALE_VERSION_MICRO) -#define LIBSWSCALE_VERSION AV_VERSION(LIBSWSCALE_VERSION_MAJOR, \ - LIBSWSCALE_VERSION_MINOR, \ - LIBSWSCALE_VERSION_MICRO) -#define LIBSWSCALE_BUILD LIBSWSCALE_VERSION_INT - -#define LIBSWSCALE_IDENT "SwS" AV_STRINGIFY(LIBSWSCALE_VERSION) - -/** - * FF_API_* defines may be placed below to indicate public API that will be - * dropped at a future version bump. The defines themselves are not part of - * the public API and may change, break or disappear at any time. - */ - -#ifndef FF_API_SWS_VECTOR -#define FF_API_SWS_VECTOR (LIBSWSCALE_VERSION_MAJOR < 6) -#endif - -#endif /* SWSCALE_VERSION_H */ diff --git a/libs/windows/lib/x64/avdevice-58.dll b/libs/windows/lib/x64/avdevice-58.dll deleted file mode 100644 index 7204dfc3..00000000 Binary files a/libs/windows/lib/x64/avdevice-58.dll and /dev/null differ diff --git a/libs/windows/lib/x64/avdevice.lib b/libs/windows/lib/x64/avdevice.lib deleted file mode 100644 index 1a765ade..00000000 Binary files a/libs/windows/lib/x64/avdevice.lib and /dev/null differ diff --git a/libs/windows/lib/x64/avfilter-7.dll b/libs/windows/lib/x64/avfilter-7.dll deleted file mode 100644 index 557b58c7..00000000 Binary files a/libs/windows/lib/x64/avfilter-7.dll and /dev/null differ diff --git a/libs/windows/lib/x64/avfilter.lib b/libs/windows/lib/x64/avfilter.lib deleted file mode 100644 index 897bacb1..00000000 Binary files a/libs/windows/lib/x64/avfilter.lib and /dev/null differ diff --git a/libs/windows/lib/x64/avformat-58.dll b/libs/windows/lib/x64/avformat-58.dll deleted file mode 100644 index 673c19eb..00000000 Binary files a/libs/windows/lib/x64/avformat-58.dll and /dev/null differ diff --git a/libs/windows/lib/x64/avformat.lib b/libs/windows/lib/x64/avformat.lib deleted file mode 100644 index a8c7e12d..00000000 Binary files a/libs/windows/lib/x64/avformat.lib and /dev/null differ diff --git a/libs/windows/lib/x64/postproc-55.dll b/libs/windows/lib/x64/postproc-55.dll deleted file mode 100644 index 9cda89e2..00000000 Binary files a/libs/windows/lib/x64/postproc-55.dll and /dev/null differ diff --git a/libs/windows/lib/x64/postproc.lib b/libs/windows/lib/x64/postproc.lib deleted file mode 100644 index 4c41693f..00000000 Binary files a/libs/windows/lib/x64/postproc.lib and /dev/null differ diff --git a/libs/windows/lib/x64/swresample.lib b/libs/windows/lib/x64/swresample.lib deleted file mode 100644 index 2292e65c..00000000 Binary files a/libs/windows/lib/x64/swresample.lib and /dev/null differ diff --git a/libs/windows/lib/x64/swscale-5.dll b/libs/windows/lib/x64/swscale-5.dll deleted file mode 100644 index 7084e2e5..00000000 Binary files a/libs/windows/lib/x64/swscale-5.dll and /dev/null differ diff --git a/libs/windows/lib/x64/swscale.lib b/libs/windows/lib/x64/swscale.lib deleted file mode 100644 index f3f305df..00000000 Binary files a/libs/windows/lib/x64/swscale.lib and /dev/null differ diff --git a/libs/windows/lib/x86/avdevice-58.dll b/libs/windows/lib/x86/avdevice-58.dll deleted file mode 100644 index c5508099..00000000 Binary files a/libs/windows/lib/x86/avdevice-58.dll and /dev/null differ diff --git a/libs/windows/lib/x86/avdevice.lib b/libs/windows/lib/x86/avdevice.lib deleted file mode 100644 index 87257f69..00000000 Binary files a/libs/windows/lib/x86/avdevice.lib and /dev/null differ diff --git a/libs/windows/lib/x86/avfilter-7.dll b/libs/windows/lib/x86/avfilter-7.dll deleted file mode 100644 index 4065b8b1..00000000 Binary files a/libs/windows/lib/x86/avfilter-7.dll and /dev/null differ diff --git a/libs/windows/lib/x86/avfilter.lib b/libs/windows/lib/x86/avfilter.lib deleted file mode 100644 index 9a184af3..00000000 Binary files a/libs/windows/lib/x86/avfilter.lib and /dev/null differ diff --git a/libs/windows/lib/x86/avformat-58.dll b/libs/windows/lib/x86/avformat-58.dll deleted file mode 100644 index a5362414..00000000 Binary files a/libs/windows/lib/x86/avformat-58.dll and /dev/null differ diff --git a/libs/windows/lib/x86/avformat.lib b/libs/windows/lib/x86/avformat.lib deleted file mode 100644 index f6ec1358..00000000 Binary files a/libs/windows/lib/x86/avformat.lib and /dev/null differ diff --git a/libs/windows/lib/x86/postproc-55.dll b/libs/windows/lib/x86/postproc-55.dll deleted file mode 100644 index 5b0f8cd0..00000000 Binary files a/libs/windows/lib/x86/postproc-55.dll and /dev/null differ diff --git a/libs/windows/lib/x86/postproc.lib b/libs/windows/lib/x86/postproc.lib deleted file mode 100644 index eb3b2c1d..00000000 Binary files a/libs/windows/lib/x86/postproc.lib and /dev/null differ diff --git a/libs/windows/lib/x86/swresample.lib b/libs/windows/lib/x86/swresample.lib deleted file mode 100644 index 80f16fb8..00000000 Binary files a/libs/windows/lib/x86/swresample.lib and /dev/null differ diff --git a/libs/windows/lib/x86/swscale-5.dll b/libs/windows/lib/x86/swscale-5.dll deleted file mode 100644 index 776f6d0c..00000000 Binary files a/libs/windows/lib/x86/swscale-5.dll and /dev/null differ diff --git a/libs/windows/lib/x86/swscale.lib b/libs/windows/lib/x86/swscale.lib deleted file mode 100644 index 8beceb3f..00000000 Binary files a/libs/windows/lib/x86/swscale.lib and /dev/null differ