/**
\fn refillPacketBuffer
\brief Fetch a new packet
*/
bool ADM_edAudioTrackFromVideo::refillPacketBuffer(void)
{
packetBufferSize=0;
uint64_t dts;
_SEGMENT *seg=parent->_segments.getSegment(_audioSeg);
static bool endOfAudio=false;
if(!seg) return false;
if(lastDts>=seg->_startTimeUs+seg->_durationUs)
{
ADM_info("Consumed all data from this audio segment\n");
switchToNextAudioSegment();
seg=parent->_segments.getSegment(_audioSeg);
if(!seg) return false;
}
ADM_audioStreamTrack *trk=getTrackAtVideoNumber(seg->_reference);
if(!trk) return false;
if(!getPacket(packetBuffer,&packetBufferSize,ADM_EDITOR_PACKET_BUFFER_SIZE,
&packetBufferSamples,&dts))
{
if(endOfAudio==false)
ADM_warning("End of audio\n");
endOfAudio=true;
return false;
}
// fixup dts
packetBufferDts=dts;
endOfAudio=false;
return true;
}
/**
\fn getChannelMapping
\brief returns channel mapping
*/
CHANNEL_TYPE *ADM_edAudioTrackFromVideo::getChannelMapping(void )
{
_SEGMENT *seg=parent->_segments.getSegment(_audioSeg);
ADM_audioStreamTrack *trk=getTrackAtVideoNumber(seg->_reference);
if(!trk) return NULL;
return trk->codec->channelMapping;
}
/**
* \fn switchToNextAudioSegment
*
*/
bool ADM_edAudioTrackFromVideo::switchToNextAudioSegment(void)
{
// Try to switch segment
if(_audioSeg+1>=parent->_segments.getNbSegments()) return false;
ADM_warning("Switching to segment %"PRIu32"\n",_audioSeg+1);
_audioSeg++;
_SEGMENT *seg=parent->_segments.getSegment(_audioSeg);
ADM_audioStreamTrack *trk=getTrackAtVideoNumber(seg->_reference);
//
ADM_Audiocodec *codec=NULL;
if(trk)
if(trk->codec)
codec=trk->codec;
if(codec)
{
codec->resetAfterSeek();
}
// Go to beginning of the stream
if(false==trk->stream->goToTime(seg->_refStartTimeUs))
{
ADM_warning("Fail to seek audio to %"PRIu64"ms\n",seg->_refStartTimeUs/1000);
return false;
}
ADM_info("Switched ok to audio segment %"PRIu32", with a ref time=%s\n",
_audioSeg,ADM_us2plain(seg->_refStartTimeUs));
return true;
}
/**
\fn isCBR
*/
bool ADM_edAudioTrackFromVideo::isCBR()
{
_SEGMENT *seg=parent->_segments.getSegment(_audioSeg);
if(!seg) return false;
ADM_audioStreamTrack *trk=getTrackAtVideoNumber(seg->_reference);
if(!trk) return false;
return trk->stream->isCBR();
}
/**
\fn getInfo
\brief returns synthetic audio info
*/
WAVHeader *ADM_edAudioTrackFromVideo::getInfo(void)
{
_SEGMENT *seg=parent->_segments.getSegment(_audioSeg);
ADM_audioStreamTrack *trk=getTrackAtVideoNumber(seg->_reference);
if(!trk) return NULL;
return trk->stream->getInfo();
}
/**
\fn getExtraData
*/
bool ADM_edAudioTrackFromVideo::getExtraData(uint32_t *l, uint8_t **d)
{
_SEGMENT *seg=parent->_segments.getSegment(_audioSeg);
ADM_audioStreamTrack *trk=getTrackAtVideoNumber(seg->_reference);
*l=0;
*d=NULL;
if(!trk) return false;
return trk->stream->getExtraData(l,d);
}
/**
\fn getAudioStream
*/
uint8_t ADM_edAudioTrackFromVideo::getAudioStream (ADM_audioStream ** audio)
{
ADM_audioStreamTrack *trk=getTrackAtVideoNumber(0);
if(!trk)
{
*audio = NULL;
return 0;
}
*audio = this;
return 1;
};
/**
\fn getPacket
\brief
*/
uint8_t ADM_edAudioTrackFromVideo::getPacket(uint8_t *dest, uint32_t *len,uint32_t sizeMax, uint32_t *samples,uint64_t *odts)
{
zgain:
_SEGMENT *seg=parent->_segments.getSegment(_audioSeg);
ADM_audioStreamTrack *trk=getTrackAtVideoNumber(seg->_reference);
if(!trk) return 0;
// Read a packet
bool r=trk->stream->getPacket(dest,len,sizeMax,samples,odts);
if(r==false)
{
ADM_warning("AudioGetPacket failed, audioSegment=%d\n",(int)_audioSeg);
// if it fails, we have to switch segment
if(false==switchToNextAudioSegment())
{
ADM_warning("..and this is the last segment\n");
return false;
}
goto zgain;
}
// Rescale odts
if(*odts!=ADM_NO_PTS)
{
if(*odts<seg->_refStartTimeUs)
{
ADM_warning("Audio packet is too early %"PRIu64" ms, this segment starts at %"PRIu64"ms\n",*odts,seg->_refStartTimeUs);
goto zgain;
}
#if 0
ADM_info("Audio DTS:%"PRIu64" ms, ref StartTime :%"PRIu64" Delta:%"PRIu64" duration :%"PRIu64"\n",
*odts/1000,seg->_refStartTimeUs/1000,(*odts-seg->_refStartTimeUs)/1000,seg->_durationUs/1000);
#endif
*odts-=seg->_refStartTimeUs;
if(*odts>seg->_durationUs)
{
if(switchToNextAudioSegment()==false)
{
ADM_warning("Audio:Switching to next segment failed\n");
return false;
}
goto zgain;
}
*odts+=seg->_startTimeUs;
}else
{
*odts=ADM_NO_PTS;
}
//ADM_info("Time : %s\n",ADM_us2plain(*odts));
//advanceDtsBySample(*samples);
return true;
}
/**
\fn goToTime
\brief Audio Seek in ms
*/
bool ADM_edAudioTrackFromVideo::goToTime (uint64_t ustime)
{
uint32_t seg;
uint64_t segTime;
ADM_info(" go to time %02.2f secs\n",((float)ustime)/1000000.);
if(false==parent->_segments.convertLinearTimeToSeg(ustime,&seg,&segTime))
{
ADM_warning("Cannot convert %"PRIu64" to linear time\n",ustime/1000);
return false;
}
ADM_info("=> seg %d, rel time %02.2f secs\n",(int)seg,((float)segTime)/1000000.);
_SEGMENT *s=parent->_segments.getSegment(seg);
ADM_audioStreamTrack *trk=getTrackAtVideoNumber(s->_reference);
if(!trk)
{
ADM_warning("No audio for segment %"PRIu32"\n",seg);
return false;
}
uint64_t seekTime;
seekTime=segTime+s->_refStartTimeUs;
ADM_Audiocodec *codec=trk->codec;
if(codec)
{
codec->resetAfterSeek();
}
if(true==trk->stream->goToTime(seekTime))
{
_audioSeg=seg;
setDts(ustime);
packetBufferSize=0; // Flush PCM decoder
return true;
}
ADM_warning("Go to time failed\n");
return false;
}
