mirror of
https://github.com/moonlight-stream/moonlight-embedded.git
synced 2026-02-16 10:30:47 +00:00
270 lines
6.7 KiB
C
270 lines
6.7 KiB
C
/*
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* This file is part of Moonlight Embedded.
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*
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* Copyright (C) 2015-2017 Iwan Timmer
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*
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* Moonlight is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* Moonlight is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Moonlight; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "imx_vpu.h"
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#include "../loop.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <poll.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/mman.h>
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#include <sys/ioctl.h>
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#include <libv4l2.h>
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#include <linux/ioctl.h>
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#include <linux/mxc_v4l2.h>
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#include <linux/mxcfb.h>
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#include <linux/v4l2-common.h>
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#include <linux/v4l2-controls.h>
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#include <linux/videodev2.h>
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#define MIN_FRAME_BUFFER_COUNT 18;
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#define THRESHOLD 2
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static int displaying;
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static int fd;
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static int queued_count;
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static int disp_clr_index = 0;
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static int pipefd[2];
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static int clearpipefd[2];
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bool video_imx_init() {
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return vpu_init();
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}
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static int frame_handle(int pipefd) {
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int frame, prevframe = -1;
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while (read(pipefd, &frame, sizeof(int)) > 0) {
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if (prevframe >= 0)
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write(clearpipefd[1], &prevframe, sizeof(int));
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prevframe = frame;
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}
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struct timeval tv;
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gettimeofday(&tv, 0);
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struct v4l2_buffer dbuf = {};
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dbuf.timestamp.tv_sec = tv.tv_sec;
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dbuf.timestamp.tv_usec = tv.tv_usec;
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dbuf.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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dbuf.memory = V4L2_MEMORY_MMAP;
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dbuf.index = frame;
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if (ioctl(fd, VIDIOC_QUERYBUF, &dbuf) < 0) {
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fprintf(stderr, "Can't get output buffer\n");
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exit(EXIT_FAILURE);
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}
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dbuf.index = frame;
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dbuf.field = V4L2_FIELD_NONE;
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if (ioctl(fd, VIDIOC_QBUF, &dbuf) < 0) {
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fprintf(stderr, "Can't get output buffer\n");
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exit(EXIT_FAILURE);
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}
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if (!displaying) {
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int type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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if (ioctl(fd, VIDIOC_STREAMON, &type) < 0) {
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fprintf(stderr, "Failed to output video\n");
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exit(EXIT_FAILURE);
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}
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displaying = true;
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}
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queued_count++;
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if (queued_count > THRESHOLD) {
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dbuf.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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dbuf.memory = V4L2_MEMORY_MMAP;
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if (ioctl(fd, VIDIOC_DQBUF, &dbuf) < 0) {
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fprintf(stderr, "Failed to dequeue buffer\n");
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exit(EXIT_FAILURE);
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} else
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queued_count--;
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write(clearpipefd[1], &dbuf.index, sizeof(int));
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}
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return LOOP_OK;
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}
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int decoder_renderer_setup(int videoFormat, int width, int height, int redrawRate, void* context, int drFlags) {
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if (videoFormat != VIDEO_FORMAT_H264) {
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fprintf(stderr, "Video format not supported\n");
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return -1;
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}
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struct mxcfb_gbl_alpha alpha;
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int fd_fb = open("/dev/fb0", O_RDWR, 0);
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if (fd_fb < 0){
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fprintf(stderr, "Can't access framebuffer\n");
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return -2;
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}
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alpha.alpha = 0;
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alpha.enable = 1;
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if (ioctl(fd_fb, MXCFB_SET_GBL_ALPHA, &alpha) < 0){
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fprintf(stderr, "Can't set framebuffer output\n");
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return -2;
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}
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close(fd_fb);
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int regfbcount = MIN_FRAME_BUFFER_COUNT + 2;
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int picWidth = ((width + 15) & ~15);
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int picHeight = ((height + 15) & ~15);
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char v4l_device[16];
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sprintf(v4l_device, "/dev/video%d", 17);
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fd = open(v4l_device, O_RDWR, 0);
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if (fd < 0){
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fprintf(stderr, "Can't access video output\n");
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return -2;
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}
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struct v4l2_rect icrop = {0};
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icrop.left = 0;
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icrop.top = 0;
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icrop.width = width;
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icrop.height = height;
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struct v4l2_format fmt = {0};
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fmt.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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fmt.fmt.pix.width = picWidth;
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fmt.fmt.pix.height = picHeight;
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fmt.fmt.pix.bytesperline = picWidth;
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fmt.fmt.pix.priv = (unsigned long)&icrop;
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fmt.fmt.pix.field = V4L2_FIELD_ANY;
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fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420;
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if (ioctl(fd, VIDIOC_S_FMT, &fmt) < 0) {
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fprintf(stderr, "Can't set source video format\n");
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return -2;
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}
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if (ioctl(fd, VIDIOC_G_FMT, &fmt) < 0) {
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fprintf(stderr, "Can't set output video format\n");
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exit(EXIT_FAILURE);
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}
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struct v4l2_requestbuffers reqbuf = {0};
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reqbuf.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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reqbuf.memory = V4L2_MEMORY_MMAP;
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reqbuf.count = regfbcount;
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struct vpu_buf* buffers[regfbcount];
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if (ioctl(fd, VIDIOC_REQBUFS, &reqbuf) < 0) {
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fprintf(stderr, "Can't get video buffers\n");
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return -2;
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}
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if (reqbuf.count < regfbcount) {
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fprintf(stderr, "Not enough video buffers\n");
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return -2;
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}
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for (int i = 0; i < regfbcount; i++) {
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struct v4l2_buffer buffer = {0};
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struct vpu_buf *buf;
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buf = calloc(1, sizeof(struct vpu_buf));
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if (buf == NULL) {
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fprintf(stderr, "Not enough memory\n");
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return -2;
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}
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buffers[i] = buf;
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buffer.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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buffer.memory = V4L2_MEMORY_MMAP;
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buffer.index = i;
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if (ioctl(fd, VIDIOC_QUERYBUF, &buffer) < 0) {
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fprintf(stderr, "Can't get video buffer\n");
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return -2;
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}
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buf->start = mmap(NULL, buffer.length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, buffer.m.offset);
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/*
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* Workaround for new V4L interface change, this change
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* will be removed after V4L driver is updated for this.
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* Need to call QUERYBUF ioctl again after mmap.
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*/
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if (ioctl(fd, VIDIOC_QUERYBUF, &buffer) < 0) {
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fprintf(stderr, "Can't set source video format\n");
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return -2;
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}
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buf->offset = buffer.m.offset;
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buf->length = buffer.length;
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if (buf->start == MAP_FAILED) {
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fprintf(stderr, "Failed to map video buffer\n");
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return -2;
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}
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}
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vpu_setup(buffers, regfbcount, width, height);
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if (pipe(pipefd) == -1 || pipe(clearpipefd) == -1) {
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fprintf(stderr, "Can't create communication channel between threads\n");
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return -2;
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}
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loop_add_fd(pipefd[0], &frame_handle, POLLIN);
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fcntl(clearpipefd[0], F_SETFL, O_NONBLOCK);
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fcntl(pipefd[0], F_SETFL, O_NONBLOCK);
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}
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static int decoder_renderer_submit_decode_unit(PDECODE_UNIT decodeUnit) {
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int frame;
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while (read(clearpipefd[0], &frame, sizeof(int)) > 0)
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vpu_clear(frame);
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if (vpu_decode(decodeUnit)) {
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frame = vpu_get_frame();
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write(pipefd[1], &frame, sizeof(int));
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}
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}
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static void decoder_renderer_cleanup() {
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vpu_cleanup();
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}
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DECODER_RENDERER_CALLBACKS decoder_callbacks_imx = {
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.setup = decoder_renderer_setup,
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.cleanup = decoder_renderer_cleanup,
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.submitDecodeUnit = decoder_renderer_submit_decode_unit,
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.capabilities = CAPABILITY_DIRECT_SUBMIT | CAPABILITY_SLICES_PER_FRAME(2),
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};
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