/**
* Starts decoding and playing the FLI/FLC file
*/
void FlcPlayer::play(bool skipLastFrame)
{
_playingState = PLAYING;
// Vertically center the video
_dy = (_mainScreen->h - _headerHeight) / 2;
_offset = _dy * _mainScreen->pitch + _mainScreen->format->BytesPerPixel * _dx;
// Skip file header
_videoFrameData = _fileBuf + 128;
_audioFrameData = _videoFrameData;
while (!shouldQuit())
{
if (_frameCallBack)
(*_frameCallBack)();
else // TODO: support both, in the case the callback is not some audio?
decodeAudio(2);
if (!shouldQuit())
decodeVideo(skipLastFrame);
if(!shouldQuit())
SDLPolling();
}
}
AVFrame *FFMpegDecoder::getFrameAtSec(double sec)
{
if (videoStream < 0)
{
errinfo("no video stream!");
return NULL;
}
AVFrame *pic = NULL;
seekToSec(sec);
while (true)
{
AVPacket *pkt = readPacket();
if (pkt == NULL)
break;
if (pkt->stream_index != videoStream)
continue;
pic = decodeVideo();
if (pic != NULL)
break;
}
return pic;
}
void FPVDrone::updateCycle()
{
// Retrieve and process video packets
bool newFrame = decodeVideo(_frame);
if(newFrame)
{
notifyVideoFrameAvailable(_frame);
}
}
Frame *DataSource::readFrame() {
AVPacket packet;
//DPRINT("%d, %d", m_formatCtx->streams[m_videoStream]->time_base.num, m_formatCtx->streams[m_videoStream]->time_base.den);
while (av_read_frame(m_formatCtx, &packet) >= 0) {
if (packet.stream_index == m_videoStream) {
//DPRINT("video packet pts %lld", packet.pts);
if (packet.pts != AV_NOPTS_VALUE) {
//DPRINT("video set pts %lld", packet.pts);
if (packet.pts > m_currentVideoPts) {
m_currentVideoPts = packet.pts;
}
}
AVFrame *f = decodeVideo(m_formatCtx->streams[m_videoStream]->codec, &packet);
if (f != NULL) {
//DPRINT("video pts: %lf, %lf", videoTimeBase, m_currentPts * videoTimeBase);
Frame *ret = new VideoFrame(f,
m_currentVideoPts,
Frame::VideoFrame);
av_free_packet(&packet);
return ret;
}
}
else if (packet.stream_index == m_audioStream) {
//DPRINT("audio packet pts %lld", packet.pts);
if (packet.pts != AV_NOPTS_VALUE) {
//DPRINT("audio set pts %lld", packet.pts);
if (packet.pts > m_currentAudioPts) {
m_currentAudioPts = packet.pts;
}
}
int size = 0;
uint8_t *buf = decodeAudio(m_formatCtx->streams[m_audioStream]->codec,
&packet,
&size);
if (buf != NULL) {
Frame *ret = new AudioFrame(buf, size, m_currentAudioPts, Frame::AudioFrame);
return ret;
}
}
av_free_packet(&packet);
}
return NULL;
}
AVFrame* FFMpegDecoder::decodeVideo()
{
return decodeVideo(&encodedPacket);
}
