67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
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#include <unistd.h>
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#include <sys/time.h>
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#include "playvideo.h"
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#include <QDebug>
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PlayVideo::PlayVideo(QObject *parent,
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QQueue<MediaPacket *> *videoQueue,
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QMutex *sendMutex,
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void *channel,
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int stream_id, int fps) :
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QObject(parent)
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{
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this->videoQueue = videoQueue;
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this->channel = channel;
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this->sendMutex = sendMutex;
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this->stream_id = stream_id;
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this->fps = fps;
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}
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/**
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******************************************************************************/
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static int
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get_mstime(void)
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{
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struct timeval tp;
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gettimeofday(&tp, 0);
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return (tp.tv_sec * 1000) + (tp.tv_usec / 1000);
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}
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void PlayVideo::play()
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{
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MediaPacket *pkt;
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int now_time;
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int sleep_time;
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int last_display_time;
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last_display_time = 0;
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while (1)
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{
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sendMutex->lock();
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if (videoQueue->isEmpty())
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{
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sendMutex->unlock();
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usleep(10 * 1000);
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continue;
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}
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pkt = videoQueue->dequeue();
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send_video_pkt(channel, stream_id, pkt->av_pkt);
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sendMutex->unlock();
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now_time = get_mstime();
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sleep_time = now_time - last_display_time;
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if (sleep_time > (1000 / fps))
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{
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sleep_time = (1000 / fps);
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}
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if (sleep_time > 0)
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{
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usleep(sleep_time * 1000);
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}
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last_display_time = now_time;
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delete pkt;
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}
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}
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