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Try all decoders not just the first one that was compiled in

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This commit is contained in:
Cameron Gutman 2023-08-29 20:47:09 -05:00
parent ab53f149f2
commit c158833258
1 changed files with 63 additions and 50 deletions
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113
src/video/ffmpeg.c
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@ -60,25 +60,71 @@ int ffmpeg_init(int videoFormat, int width, int height, int perf_lvl, int buffer
}
ffmpeg_decoder = perf_lvl & VAAPI_ACCELERATION ? VAAPI : SOFTWARE;
if (videoFormat & VIDEO_FORMAT_MASK_H264) {
if (ffmpeg_decoder == SOFTWARE) {
if (!decoder) decoder = avcodec_find_decoder_by_name("h264_nvv4l2"); // Tegra
if (!decoder) decoder = avcodec_find_decoder_by_name("h264_nvmpi"); // Tegra
if (!decoder) decoder = avcodec_find_decoder_by_name("h264_omx"); // VisionFive
if (!decoder) decoder = avcodec_find_decoder_by_name("h264_v4l2m2m"); // Stateful V4L2
for (int try = 0; try < 6; try++) {
if (videoFormat & VIDEO_FORMAT_MASK_H264) {
if (ffmpeg_decoder == SOFTWARE) {
if (try == 0) decoder = avcodec_find_decoder_by_name("h264_nvv4l2"); // Tegra
if (try == 1) decoder = avcodec_find_decoder_by_name("h264_nvmpi"); // Tegra
if (try == 2) decoder = avcodec_find_decoder_by_name("h264_omx"); // VisionFive
if (try == 3) decoder = avcodec_find_decoder_by_name("h264_v4l2m2m"); // Stateful V4L2
}
if (try == 4) decoder = avcodec_find_decoder_by_name("h264"); // Software and hwaccel
} else if (videoFormat & VIDEO_FORMAT_MASK_H265) {
if (ffmpeg_decoder == SOFTWARE) {
if (try == 0) decoder = avcodec_find_decoder_by_name("hevc_nvv4l2"); // Tegra
if (try == 1) decoder = avcodec_find_decoder_by_name("hevc_nvmpi"); // Tegra
if (try == 2) decoder = avcodec_find_decoder_by_name("hevc_omx"); // VisionFive
if (try == 3) decoder = avcodec_find_decoder_by_name("hevc_v4l2m2m"); // Stateful V4L2
}
if (try == 4) decoder = avcodec_find_decoder_by_name("hevc"); // Software and hwaccel
} else if (videoFormat & VIDEO_FORMAT_MASK_AV1) {
if (ffmpeg_decoder == SOFTWARE) {
if (try == 0) decoder = avcodec_find_decoder_by_name("libdav1d");
}
if (try == 1) decoder = avcodec_find_decoder_by_name("av1"); // Hwaccel
} else {
printf("Video format not supported\n");
return -1;
}
if (!decoder) decoder = avcodec_find_decoder_by_name("h264"); // Software and hwaccel
} else if (videoFormat & VIDEO_FORMAT_MASK_H265) {
if (ffmpeg_decoder == SOFTWARE) {
if (!decoder) decoder = avcodec_find_decoder_by_name("hevc_nvv4l2"); // Tegra
if (!decoder) decoder = avcodec_find_decoder_by_name("hevc_nvmpi"); // Tegra
if (!decoder) decoder = avcodec_find_decoder_by_name("hevc_omx"); // VisionFive
if (!decoder) decoder = avcodec_find_decoder_by_name("hevc_v4l2m2m"); // Stateful V4L2
// Skip this decoder if it isn't compiled into FFmpeg
if (!decoder) {
continue;
}
decoder_ctx = avcodec_alloc_context3(decoder);
if (decoder_ctx == NULL) {
printf("Couldn't allocate context\n");
return -1;
}
// Use low delay decoding
decoder_ctx->flags |= AV_CODEC_FLAG_LOW_DELAY;
// Allow display of corrupt frames and frames missing references
decoder_ctx->flags |= AV_CODEC_FLAG_OUTPUT_CORRUPT;
decoder_ctx->flags2 |= AV_CODEC_FLAG2_SHOW_ALL;
// Report decoding errors to allow us to request a key frame
decoder_ctx->err_recognition = AV_EF_EXPLODE;
if (perf_lvl & SLICE_THREADING) {
decoder_ctx->thread_type = FF_THREAD_SLICE;
decoder_ctx->thread_count = thread_count;
} else {
decoder_ctx->thread_count = 1;
}
decoder_ctx->width = width;
decoder_ctx->height = height;
decoder_ctx->pix_fmt = AV_PIX_FMT_YUV420P;
int err = avcodec_open2(decoder_ctx, decoder, NULL);
if (err < 0) {
printf("Couldn't open codec: %s\n", decoder->name);
continue;
}
if (!decoder) decoder = avcodec_find_decoder_by_name("hevc"); // Software and hwaccel
} else {
printf("Video format not supported\n");
return -1;
}
if (decoder == NULL) {
@ -88,39 +134,6 @@ int ffmpeg_init(int videoFormat, int width, int height, int perf_lvl, int buffer
printf("Using FFmpeg decoder: %s\n", decoder->name);
decoder_ctx = avcodec_alloc_context3(decoder);
if (decoder_ctx == NULL) {
printf("Couldn't allocate context");
return -1;
}
// Use low delay decoding
decoder_ctx->flags |= AV_CODEC_FLAG_LOW_DELAY;
// Allow display of corrupt frames and frames missing references
decoder_ctx->flags |= AV_CODEC_FLAG_OUTPUT_CORRUPT;
decoder_ctx->flags2 |= AV_CODEC_FLAG2_SHOW_ALL;
// Report decoding errors to allow us to request a key frame
decoder_ctx->err_recognition = AV_EF_EXPLODE;
if (perf_lvl & SLICE_THREADING) {
decoder_ctx->thread_type = FF_THREAD_SLICE;
decoder_ctx->thread_count = thread_count;
} else {
decoder_ctx->thread_count = 1;
}
decoder_ctx->width = width;
decoder_ctx->height = height;
decoder_ctx->pix_fmt = AV_PIX_FMT_YUV420P;
int err = avcodec_open2(decoder_ctx, decoder, NULL);
if (err < 0) {
printf("Couldn't open codec");
return err;
}
dec_frames_cnt = buffer_count;
dec_frames = malloc(buffer_count * sizeof(AVFrame*));
if (dec_frames == NULL) {