/**
\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;
}
void TimeSpinBox::reportChange() {
kDebug() << i18n( "Reporting new timestep value: " ) << timeScale();
emit scaleChanged( timeScale() );
}
