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#include <unistd.h>
#include "demuxmedia.h"
DemuxMedia::DemuxMedia(QObject *parent, QQueue<MediaPacket *> *videoQueue,
void *channel, int stream_id) : QObject(parent)
{
this->channel = channel;
this->stream_id = stream_id;
this->vcrFlag = 0;
this->elapsedTime = 0;
this->la_seekPos = -1;
this->isStopped = 0;
this->pausedTime = 0;
this->videoQueue = videoQueue;
playVideo = new PlayVideo(NULL, videoQueue, &sendMutex, channel, 101, 24);
playVideoThread = new QThread(this);
connect(playVideoThread, SIGNAL(started()), playVideo, SLOT(play()));
playVideo->moveToThread(playVideoThread);
playVideoThread->start();
}
void DemuxMedia::setVcrOp(int op)
{
vcrMutex.lock();
vcrFlag = op;
vcrMutex.unlock();
if (op == VCR_STOP)
{
clear();
}
}
int DemuxMedia::clear()
{
sendMutex.lock();
videoQueue->clear();
sendMutex.unlock();
return 0;
}
void DemuxMedia::startDemuxing()
{
MediaPacket *mediaPkt;
int is_video_frame;
int rv;
while (1)
{
vcrMutex.lock();
switch (vcrFlag)
{
case VCR_PLAY:
vcrFlag = 0;
vcrMutex.unlock();
if (pausedTime)
{
elapsedTime = av_gettime() - pausedTime;
pausedTime = 0;
}
isStopped = false;
continue;
break;
case VCR_PAUSE:
vcrMutex.unlock();
if (!pausedTime)
{
/* save amount of video played so far */
pausedTime = av_gettime() - elapsedTime;
}
usleep(1000 * 100);
isStopped = false;
continue;
break;
case VCR_STOP:
vcrMutex.unlock();
if (isStopped)
{
usleep(1000 * 100);
continue;
}
elapsedTime = 0;
pausedTime = 0;
la_seekPos = -1;
xrdpvr_seek_media(0, 0);
isStopped = true;
continue;
break;
default:
vcrMutex.unlock();
break;
}
mediaPkt = new MediaPacket;
rv = xrdpvr_get_frame(&mediaPkt->av_pkt,
&is_video_frame,
&mediaPkt->delay_in_us);
if (rv < 0)
{
/* looks like we reached end of file */
delete mediaPkt;
usleep(1000 * 100);
xrdpvr_seek_media(0, 0);
this->elapsedTime = 0;
continue;
}
if (is_video_frame)
{
sendMutex.lock();
#if 1
videoQueue->enqueue(mediaPkt);
#else
send_video_pkt(channel, stream_id, mediaPkt->av_pkt);
delete mediaPkt;
#endif
sendMutex.unlock();
}
else
{
int frame;
sendMutex.lock();
send_audio_pkt(channel, stream_id, mediaPkt->av_pkt);
sendMutex.unlock();
xrdpvr_read_ack(channel, &frame);
delete mediaPkt;
}
updateMediaPos();
if (elapsedTime == 0)
{
elapsedTime = av_gettime();
}
/* time elapsed in 1/100th sec units since play started */
emit onElapsedtime((av_gettime() - elapsedTime) / 10000);
} /* end while (1) */
}
void DemuxMedia::onMediaSeek(int value)
{
posMutex.lock();
la_seekPos = value;
posMutex.unlock();
}
void DemuxMedia::updateMediaPos()
{
posMutex.lock();
if (la_seekPos >= 0)
{
xrdpvr_seek_media(la_seekPos, 0);
elapsedTime = av_gettime() - la_seekPos * 1000000;
la_seekPos = -1;
}
posMutex.unlock();
}
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