int SoundGen2GS::readBuffer(int16 *buffer, const int numSamples) {
fillAudio(buffer, numSamples / 2);
return numSamples;
}
/**
\fn save
*/
bool muxerAvi::save(void)
{
printf("[AviMuxer] Saving\n");
uint32_t bufSize=vStream->getWidth()*vStream->getHeight()*3;
bool result=true;
uint64_t rawDts;
uint64_t lastVideoDts=0;
int ret;
int written=0;
audioPackets=new aviAudioPacket[nbAStreams];
videoBuffer=new uint8_t[bufSize];
ADM_info("[AviMuxer]avg fps=%u\n",vStream->getAvgFps1000());
ADMBitstream in(bufSize);
in.data=videoBuffer;
uint64_t aviTime=0;
if(in.dts==ADM_NO_PTS) in.dts=0;
lastVideoDts=in.dts;
initUI("Saving Avi");
encoding->setContainer("AVI/OpenDML");
if(false==vStream->getPacket(&in))
{
ADM_error("Cannot get first video frame\n");
goto abt;
}
while(1)
{
if(in.dts>aviTime+videoIncrement)
{
writter.saveVideoFrame( 0, 0,videoBuffer); // Insert dummy video frame
encoding->pushVideoFrame(0,0,in.dts);
}else
{
if(!writter.saveVideoFrame( in.len, in.flags,videoBuffer)) // Put our real video
{
ADM_warning("[AviMuxer] Error writting video frame\n");
result=false;
goto abt;
}
encoding->pushVideoFrame(in.len,in.out_quantizer,in.dts);
if(false==vStream->getPacket(&in)) goto abt;
if(in.dts==ADM_NO_PTS)
{
in.dts=lastVideoDts+videoIncrement;
}
lastVideoDts=in.dts;
}
fillAudio(aviTime+videoIncrement); // and matching audio
if(updateUI()==false)
{
result=false;
goto abt;
}
written++;
aviTime+=videoIncrement;
}
abt:
closeUI();
writter.setEnd();
delete [] videoBuffer;
videoBuffer=NULL;
delete [] audioPackets;
audioPackets=NULL;
ADM_info("[AviMuxer] Wrote %d frames, nb audio streams %d\n",written,nbAStreams);
return result;
}
/**
\fn save
*/
bool muxerMp4v2::save(void)
{
bool result=true;
int nbFrame=0;
printf("[Mp4v2Muxer] Saving\n");
initUI("Saving MP4V2");
encoding->setContainer("MP4 (libmp4v2)");
uint64_t lastSentDts=0;
while(loadNextVideoFrame((&(in[nextWrite]))))
{
bool kf=false;
int other=!nextWrite;
if(in[other].flags & AVI_KEY_FRAME) kf=true;
ADM_assert(in[nextWrite].dts!=ADM_NO_PTS)
ADM_assert(in[nextWrite].dts!=ADM_NO_PTS)
if(in[other].pts==ADM_NO_PTS || in[other].pts==ADM_NO_PTS)
{
GUI_Error_HIG("Video","Video does not have enough timing information. Are you copying from AVI ?");
goto theEnd;
}
uint64_t nextDts=in[nextWrite].dts; // Delta between dts=duration of the frame (sort of)
uint64_t myDts=in[other].dts;
uint64_t myPts=in[other].pts;
cprintf(">>next DTS=%"PRIu64", last DTS=%"PRIu64"delta=%"PRIu64"\n",nextDts,lastSentDts,nextDts-lastSentDts);
encoding->pushVideoFrame(in[other].len,in[other].out_quantizer,myDts);
uint64_t delta=myPts-lastSentDts; // composition time...
delta=timeScale(delta);
uint64_t duration=nextDts-lastSentDts;
uint64_t scaled_duration=timeScale(duration);
duration=inverseTimeScale(scaled_duration); // handle rounding error
nbFrame++;
cprintf("Sending frame duration=%"PRIu64", pts/dts=%"PRIu64"\n",lastSentDts,delta);
if(false==MP4WriteSample(handle,videoTrackId,in[other].data,in[other].len,
scaled_duration, // duration
delta, // pts/dts offset
kf // Sync Sample
))
{
ADM_error("Cannot write video sample\n");
result=false;
goto theEnd;
}
// update lastSentDts
lastSentDts+=duration; // beginning of next frame...
//
cprintf("lastSendDts=%"PRIu64", next Dts=%"PRIu64", skew=%"PRId64"\n",lastSentDts,nextDts,
(int64_t)nextDts-(int64_t)lastSentDts);
//
fillAudio(lastSentDts);
// toggle
nextWrite=other;
if(updateUI()==false)
{
result=false;
break;
}
}
// Write last frame
nextWrite=!nextWrite;
int scale;
if(videoIncrement>5000) scale=(1000000.0/videoIncrement);
else scale=100; // 10 ms
MP4WriteSample(handle,videoTrackId,in[nextWrite].data,in[nextWrite].len,
(MP4Duration)90000/scale,
0, // pts/dts offset
0 // Sync Sample
);
theEnd:
close();
if(muxerConfig.optimize && result==true)
{
encoding->setPhasis("Optimizing");
string tmpTargetFileName=targetFileName+string(".tmp");
if(!ADM_renameFile(targetFileName.c_str(),tmpTargetFileName.c_str()))
{
GUI_Error_HIG("","Cannot rename file (optimize)");
return false;
}
// Optimize
ADM_info("Optimizing...\n");
MP4Optimize( tmpTargetFileName.c_str(), targetFileName.c_str() );
// delete
unlink(tmpTargetFileName.c_str());
}
closeUI();
return result;
}
