bool muxerFlv::open(const char *file, ADM_videoStream *s,uint32_t nbAudioTrack,ADM_audioStream **a)
{
uint32_t fcc=s->getFCC();
bool r=true;
char *fileTitle=NULL;
if(fourCC::check(fcc,(uint8_t *)"FLV1") || isVP6Compatible(fcc))
{
}else
{
GUI_Error_HIG("Unsupported","Only FLV1 & VP6 supported for video");
return false;
}
if(nbAudioTrack)
for(int i=0;i<nbAudioTrack;i++)
{
uint32_t acc=a[i]->getInfo()->encoding;
if(acc!=WAV_MP2 && acc!=WAV_MP3 && acc!=WAV_AAC)
{
GUI_Error_HIG("Unsupported","Only AAC & mpegaudio supported for audio");
return false;
}
uint32_t fq=a[i]->getInfo()->frequency;
if(fq!=44100 &&fq!=22050 && fq!=11025)
{
GUI_Error_HIG("Unsupported","Only 44.1, 22.050 and 11.025 kHz supported");
return false;
}
}
if(false==setupMuxer("flv",file))
{
printf("[FLV] Failed to open muxer\n");
return false;
}
if(initVideo(s)==false)
{
printf("[FLV] Failed to init video\n");
return false;
}
AVCodecContext *c = video_st->codec;
AVDictionary *dict = NULL;
rescaleFps(s->getAvgFps1000(),&(c->time_base));
video_st->time_base=c->time_base;
c->gop_size=15;
if(initAudio(nbAudioTrack,a)==false)
{
printf("[FLV] Failed to init audio\n");
return false;
}
int er=avio_open(&(oc->pb), file, AVIO_FLAG_WRITE);
if (er)
{
ADM_error("[Flv]: Failed to open file :%s, er=%d\n",file,er);
r=false;
goto finish;
}
char buf[64];
snprintf(buf, sizeof(buf), "%d", AV_TIME_BASE / 10);
av_dict_set(&dict, "preload", buf, 0);
av_dict_set(&dict, "max_delay", buf, 0);
av_dict_set(&dict, "muxrate", "10080000", 0);
if (avformat_write_header(oc, &dict) < 0)
{
printf("[Flv Muxer] Muxer rejected the parameters\n");
r=false;
goto finish;
}
initialized=true;
finish:
vStream=s;
aStreams=a;
nbAStreams=nbAudioTrack;
return r;
}
/**
\fn initVideo
\brief setup video part of muxer
*/
bool muxerFFmpeg::initVideo(ADM_videoStream *stream)
{
audioDelay=stream->getVideoDelay();
video_st = avformat_new_stream(oc, NULL);
if (!video_st)
{
printf("[FF] new stream failed\n");
return false;
}
AVCodecContext *c;
c = video_st->codec;
c->sample_aspect_ratio.num=1;
c->sample_aspect_ratio.den=1;
video_st->sample_aspect_ratio=c->sample_aspect_ratio;
uint32_t videoExtraDataSize=0;
uint8_t *videoExtraData;
stream->getExtraData(&videoExtraDataSize,&videoExtraData);
printf("[FF] Using %d bytes for video extradata\n",(int)videoExtraDataSize);
ffmpuxerSetExtradata(c,videoExtraDataSize,videoExtraData);
c->rc_buffer_size=8*1024*224;
c->rc_max_rate=9500*1000;
c->rc_min_rate=0;
c->bit_rate=9000*1000;
c->codec_type = AVMEDIA_TYPE_VIDEO;
c->flags=CODEC_FLAG_QSCALE;
c->width = stream->getWidth();
c->height =stream->getHeight();
uint32_t fcc=stream->getFCC();
if(isMpeg4Compatible(fcc))
{
c->codec_id = CODEC_ID_MPEG4;
if(stream->providePts()==true)
{
c->has_b_frames=1; // in doubt...
c->max_b_frames=2;
}else
{
ADM_warning("Incoming stream does not provide PTS \n");
c->has_b_frames=0; // No PTS=cannot handle CTS...
c->max_b_frames=0;
}
}else
{
if(isH264Compatible(fcc) || isH265Compatible(fcc))
{
if(stream->providePts()==true)
{
c->has_b_frames=1; // in doubt...
c->max_b_frames=2;
}else
{
printf("[MP4] Source video has no PTS information, assuming no b frames\n");
c->has_b_frames=0; // No PTS=cannot handle CTS...
c->max_b_frames=0;
}
if(isH265Compatible(fcc)) {
c->codec_id = AV_CODEC_ID_HEVC;
setAvCodec(c,AV_CODEC_ID_HEVC);
} else {
c->codec_id = CODEC_ID_H264;
setAvCodec(c,CODEC_ID_H264);
}
}
else
{
if(isDVCompatible(fcc))
{
c->codec_id = CODEC_ID_DVVIDEO;
}else
{
if(fourCC::check(fcc,(uint8_t *)"H263"))
{
c->codec_id=CODEC_ID_H263;
}else
if(isVP6Compatible(stream->getFCC()))
{
c->codec_id=CODEC_ID_VP6F;
setAvCodec(c,CODEC_ID_VP6F);
c->has_b_frames=0; // No PTS=cannot handle CTS...
c->max_b_frames=0;
}else
if(fourCC::check(stream->getFCC(),(uint8_t *)"FLV1"))
{
c->has_b_frames=0; // No PTS=cannot handle CTS...
c->max_b_frames=0;
c->codec_id=CODEC_ID_FLV1;
setAvCodec(c,CODEC_ID_FLV1);
}else
{
if(fourCC::check(stream->getFCC(),(uint8_t *)"MPEG1"))
{
c->has_b_frames=1; // No PTS=cannot handle CTS...
c->max_b_frames=2;
c->codec_id=CODEC_ID_MPEG1VIDEO;
}
else if(fourCC::check(stream->getFCC(),(uint8_t *)"MPEG2"))
{
c->has_b_frames=1; // No PTS=cannot handle CTS...
c->max_b_frames=2;
c->codec_id=CODEC_ID_MPEG2VIDEO;
}else
{
uint32_t id=stream->getFCC();
AVCodecID cid=ADM_codecIdFindByFourcc(fourCC::tostring(id));
if(cid==CODEC_ID_NONE)
{
printf("[FF] Unknown video codec\n");
return false;
}
c->codec_id=cid;
}
}
}
}
}
if(useGlobalHeader()==true)
{
if(videoExtraDataSize)
{
ADM_info("Video has extradata and muxer requires globalHeader, assuming it is done so.\n");
c->flags|=CODEC_FLAG_GLOBAL_HEADER;
}else
{
ADM_warning("Video has no extradata but muxer requires globalHeader.\n");
}
}
printf("[FF] Video initialized\n");
return true;
}
/*
* \fn Oplug_flv
\brief Main function to save in flv format.
It is very close to oplug_mp4 but somehow simplified as the following assumptions are made :
* No b frame
* No 2 pass encoding
*/
uint8_t oplug_flv(const char *name)
{
AVDMGenericVideoStream *_incoming=NULL;
AVDMGenericAudioStream *audio=NULL;
uint8_t audioBuffer[48000];
uint8_t *videoBuffer=NULL;
uint32_t alen;//,flags;
uint32_t size;
uint32_t sample_got=0,sample;
uint32_t extraDataSize=0;
uint8_t *extraData=NULL;
lavMuxer *muxer=NULL;
aviInfo info;
uint32_t width,height;
DIA_encoding *encoding_gui=NULL;
Encoder *_encode=NULL;
uint32_t total=0;
uint32_t videoExtraDataSize=0;
uint8_t *videoExtraData=NULL;
uint8_t *dummy,err;
WAVHeader *audioinfo=NULL;
int prefill=0;
uint32_t displayFrame=0;
ADMBitstream bitstream(0);
uint8_t r=0;
pthread_t audioThread;
audioQueueMT context;
PacketQueue *pq=NULL;//("MP4 audioQ",50,2*1024*1024);
uint32_t totalAudioSize=0;
int frameDelay = 0;
bool receivedFrame = false;
// Setup video
if(videoProcessMode())
{
_incoming = getLastVideoFilter (frameStart,frameEnd-frameStart);
}else
{
_incoming = getFirstVideoFilter (frameStart,frameEnd-frameStart);
}
videoBuffer=new uint8_t[_incoming->getInfo()->width*_incoming->getInfo()->height*3];
// Set global header encoding, needed for H264
_encode = getVideoEncoder (_incoming->getInfo()->width, _incoming->getInfo()->height,1);
total= _incoming->getInfo()->nb_frames;
info.fcc=*(uint32_t *)_encode->getCodecName(); //FIXME
//
int supported=0;
if(isVP6Compatible(info.fcc)) supported=1;
if(fourCC::check(info.fcc,(const uint8_t *)"FLV1")) supported=1;
if(!supported)
{
GUI_Error_HIG(QT_TR_NOOP("Unsupported video"),QT_TR_NOOP("Only FLV1 and VP6 video are supported"));
goto stopit;
}
/* Check audio, we support only mp3 right now
* 44100, 22050, 11025 only!
* */
if(currentaudiostream)
{
uint32_t audioCodec=0;
uint32_t fq=currentaudiostream->getInfo()->frequency;
if(audioProcessMode())
{
audioCodec=audioFilter_getOuputCodec();
fq=audioFilter_getOuputFrequency(fq);
}else
{ // copy
audioCodec=currentaudiostream->getInfo()->encoding;
}
if(audioCodec!=WAV_MP3 )
{
GUI_Error_HIG(QT_TR_NOOP("Unsupported audio"),QT_TR_NOOP("Audio must be mp3 for flv output."));
goto stopit;
}
if(fq!=44100 && fq!=22050 && fq!=11025)
{
GUI_Error_HIG(QT_TR_NOOP("Unsupported audio"),QT_TR_NOOP("Frequency must be 44100, 22050 or 11025 Hz."));
goto stopit;
}
}
encoding_gui=new DIA_encoding(_incoming->getInfo()->fps1000);
bitstream.bufferSize=_incoming->getInfo()->width*_incoming->getInfo()->height*3;
if (!_encode)
{
GUI_Error_HIG ("[FLV]",QT_TR_NOOP("Cannot initialize the video stream"));
goto stopit;
}
// init compressor
encoding_gui->setContainer(QT_TR_NOOP("FLV"));
encoding_gui->setAudioCodec(QT_TR_NOOP("None"));
if(!videoProcessMode())
encoding_gui->setCodec(QT_TR_NOOP("Copy"));
else
encoding_gui->setCodec(_encode->getDisplayName());
if (!_encode->configure (_incoming))
{
GUI_Error_HIG (QT_TR_NOOP("Filter init failed"), NULL);
goto stopit;
};
encoding_gui->setPhasis (QT_TR_NOOP("Encoding"));
info.width=_incoming->getInfo()->width;
info.height=_incoming->getInfo()->height;
info.nb_frames=_incoming->getInfo()->nb_frames;
info.fps1000=_incoming->getInfo()->fps1000;
_encode->hasExtraHeaderData( &videoExtraDataSize,&dummy);
if(videoExtraDataSize)
{
printf("[FLV]We have extradata for video in copy mode (%d)\n",videoExtraDataSize);
videoExtraData=new uint8_t[videoExtraDataSize];
memcpy(videoExtraData,dummy,videoExtraDataSize);
}
ADM_assert(_encode);
bitstream.data=videoBuffer;
// ____________Setup audio__________________
if(currentaudiostream)
{
audio=mpt_getAudioStream();
if(!audio)
{
GUI_Error_HIG ("[FLV]",QT_TR_NOOP("Cannot initialize the audio stream"));
goto stopit;
}
}
if(audio)
{
audioinfo=audio->getInfo();
audio->extraData(&extraDataSize,&extraData);
if(audioProcessMode())
encoding_gui->setAudioCodec(getStrFromAudioCodec(audio->getInfo()->encoding));
else
encoding_gui->setAudioCodec(QT_TR_NOOP("Copy"));
}else
{
encoding_gui->setAudioCodec(QT_TR_NOOP("None"));
}
// ____________Setup Muxer _____________________
muxer= new lavMuxer;
if(!muxer->open(
name,
2000000, // Muxrate
MUXER_FLV,
&info,videoExtraDataSize,videoExtraData,
audioinfo,extraDataSize,extraData))
goto stopit;
//_____________ Loop _____________________
encoding_gui->setContainer(QT_TR_NOOP("FLV"));
if(!videoProcessMode())
encoding_gui->setCodec(QT_TR_NOOP("Copy"));
else
encoding_gui->setCodec(_encode->getDisplayName());
//
UI_purge();
//_____________ Start Audio thread _____________________
if(audio)
{
pq=new PacketQueue("[FLV] audioQ",5000,2*1024*1024);
memset(&context,0,sizeof(context));
context.audioEncoder=audio;
context.audioTargetSample=0xFFFF0000; ; //FIXME
context.packetQueue=pq;
// start audio thread
ADM_assert(!pthread_create(&audioThread,NULL,(THRINP)defaultAudioQueueSlave,&context));
ADM_usleep(4000);
}
//_____________GO !___________________
for (uint32_t frame = 0; frame < total; frame++)
{
if (!encoding_gui->isAlive())
{
r = 0;
break;
}
while(muxer->needAudio())
{
if(pq->Pop(audioBuffer,&alen,&sample))
{
if(alen)
{
muxer->writeAudioPacket(alen,audioBuffer,sample_got);
totalAudioSize+=alen;
encoding_gui->setAudioSize(totalAudioSize);
sample_got+=sample;
}
}
else
{
r = 0;
break;
}
}
for (;;)
{
bitstream.cleanup(frame);
if (frame + frameDelay >= total)
{
if (_encode->getRequirements() & ADM_ENC_REQ_NULL_FLUSH)
r = _encode->encode(UINT32_MAX, &bitstream);
else
r = 0;
}
else
r = _encode->encode(frame + frameDelay, &bitstream);
if (!r)
{
printf("Encoding of frame %lu failed!\n", frame);
GUI_Error_HIG (QT_TR_NOOP("Error while encoding"), NULL);
break;
}
else if (!receivedFrame && bitstream.len > 0)
{
if (!(bitstream.flags & AVI_KEY_FRAME))
{
GUI_Error_HIG (QT_TR_NOOP("KeyFrame error"), QT_TR_NOOP("The beginning frame is not a key frame.\nPlease move the A marker."));
r = 0;
break;
}
else
receivedFrame = true;
}
if (bitstream.len == 0 && (_encode->getRequirements() & ADM_ENC_REQ_NULL_FLUSH))
{
printf("skipping frame: %u size: %i\n", frame + frameDelay, bitstream.len);
frameDelay++;
}
else
break;
}
if (!r)
break;
muxer->writeVideoPacket(&bitstream);
encoding_gui->setFrame(frame, bitstream.len, bitstream.out_quantizer, total);
}
stopit:
// Flush slave Q
if(audio&& pq)
{
context.audioAbort=1;
pq->Abort();
// Wait for audio slave to be over
while(!context.audioDone)
{
printf("[FLV]Waiting Audio thread\n");
ADM_usleep(500000);
}
delete pq;
}
//
if(muxer) muxer->close();
if(encoding_gui) delete encoding_gui;
if(videoBuffer) delete [] videoBuffer;
if(muxer) delete muxer;
if(_encode) delete _encode;
if(videoExtraData) delete [] videoExtraData;
// Cleanup
deleteAudioFilter (audio);
return r;
}
uint8_t lavMuxer::open(const char *filename,uint32_t inbitrate, ADM_MUXER_TYPE type, aviInfo *info,
uint32_t videoExtraDataSize, uint8_t *videoExtraData, WAVHeader *audioheader,
uint32_t audioextraSize,uint8_t *audioextraData)
{
AVCodecContext *c;
_type=type;
_fps1000=info->fps1000;
switch(_type)
{
case MUXER_TS:
fmt = av_guess_format("mpegts", NULL, NULL);
break;
case MUXER_DVD:
fmt = av_guess_format("dvd", NULL, NULL);
break;
case MUXER_VCD:
fmt = av_guess_format("vcd", NULL, NULL);
break;
case MUXER_SVCD:
fmt = av_guess_format("svcd", NULL, NULL);
break;
case MUXER_MP4:
fmt = av_guess_format("mp4", NULL, NULL);
break;
case MUXER_PSP:
fmt = av_guess_format("psp", NULL, NULL);
break;
case MUXER_FLV:
fmt = av_guess_format("flv", NULL, NULL);
break;
case MUXER_MATROSKA:
fmt = av_guess_format("matroska", NULL, NULL);
break;
default:
fmt=NULL;
}
if (!fmt)
{
printf("Lav:Cannot guess format\n");
ADM_assert(0);
return 0;
}
oc = avformat_alloc_context();
if (!oc)
{
printf("Lav:Cannot allocate context\n");
return 0;
}
oc->oformat = fmt;
snprintf(oc->filename,1000,"file://%s",filename);
// Video
//________
video_st = av_new_stream(oc, 0);
if (!video_st)
{
printf("Lav: new stream failed\n");
return 0;
}
c = video_st->codec;
c->gop_size=15;
c->max_b_frames=2;
c->has_b_frames=1;
switch(_type)
{
case MUXER_FLV:
c->codec=new AVCodec;
memset(c->codec,0,sizeof(AVCodec));
if(fourCC::check(info->fcc,(uint8_t *)"FLV1"))
{
c->codec_id=CODEC_ID_FLV1;
c->codec->name=ADM_strdup("FLV1");
}else
{
if(isVP6Compatible(info->fcc))
{
c->codec_id=CODEC_ID_VP6F;
c->codec->name=ADM_strdup("VP6F");
}
else
ADM_assert(0);
}
break;
case MUXER_MATROSKA:
strcpy(oc->title,"Avidemux");
strcpy(oc->author,"Avidemux");
if(isMpeg4Compatible(info->fcc))
{
c->codec_id = CODEC_ID_MPEG4;
}else
{
if(isH264Compatible(info->fcc))
{
c->has_b_frames=2; // let muxer know we may have bpyramid
c->codec_id = CODEC_ID_H264;
c->codec=new AVCodec;
memset(c->codec,0,sizeof(AVCodec));
c->codec->name=ADM_strdup("H264");
}
else
{
if(!ADM_4cc_to_lavcodec((const char *)&(info->fcc),&(c->codec_id)))
{
printf("[lavFormat] Cannot map this\n");
return 0;
}
}
}
if(videoExtraDataSize)
{
c->extradata=videoExtraData;
c->extradata_size= videoExtraDataSize;
}
break;
case MUXER_MP4:
case MUXER_PSP:
{
// probably a memeleak here
char *foo=ADM_strdup(filename);
strcpy(oc->title,ADM_GetFileName(foo));
strcpy(oc->author,"Avidemux");
if(isMpeg4Compatible(info->fcc))
{
c->codec_id = CODEC_ID_MPEG4;
}else
{
if(isH264Compatible(info->fcc))
{
c->has_b_frames=2; // let muxer know we may have bpyramid
c->codec_id = CODEC_ID_H264;
c->codec=new AVCodec;
memset(c->codec,0,sizeof(AVCodec));
c->codec->name=ADM_strdup("H264");
}
else
{
if(isDVCompatible(info->fcc))
{
c->codec_id = CODEC_ID_DVVIDEO;
}else
{
if(fourCC::check(info->fcc,(uint8_t *)"H263"))
{
c->codec_id=CODEC_ID_H263;
}else{
c->codec_id = CODEC_ID_MPEG4; // Default value
printf("Ooops, cant mux that...\n");
printf("Ooops, cant mux that...\n");
printf("Ooops, cant mux that...\n");
}
}
}
}
if(videoExtraDataSize)
{
c->extradata=videoExtraData;
c->extradata_size= videoExtraDataSize;
}
if(MUXER_PSP==_type)
{
c->rc_buffer_size=0; //8*1024*224;
c->rc_max_rate=0; //768*1000;
c->rc_min_rate=0;
c->bit_rate=768*1000;
}
else
{
c->rc_buffer_size=8*1024*224;
c->rc_max_rate=9500*1000;
c->rc_min_rate=0;
if(!inbitrate)
c->bit_rate=9000*1000;
else
c->bit_rate=inbitrate;
}
}
break;
case MUXER_TS:
c->codec_id = CODEC_ID_MPEG2VIDEO;
c->rc_buffer_size=8*1024*224;
c->rc_max_rate=9500*1000;
c->rc_min_rate=0;
if(!inbitrate)
c->bit_rate=9000*1000;
else
c->bit_rate=inbitrate;
break;
case MUXER_DVD:
c->codec_id = CODEC_ID_MPEG2VIDEO;
c->rc_buffer_size=8*1024*224;
c->rc_max_rate=9500*1000;
c->rc_min_rate=0;
if(!inbitrate)
c->bit_rate=9000*1000;
else
c->bit_rate=inbitrate;
break;
case MUXER_VCD:
c->codec_id = CODEC_ID_MPEG1VIDEO;
c->rc_buffer_size=8*1024*40;
c->rc_max_rate=1152*1000;
c->rc_min_rate=1152*1000;
c->bit_rate=1152*1000;
break;
case MUXER_SVCD:
c->codec_id = CODEC_ID_MPEG2VIDEO;
c->rc_buffer_size=8*1024*112;
c->rc_max_rate=2500*1000;
c->rc_min_rate=0*1000;
if(!inbitrate)
c->bit_rate=2040*1000;
else
c->bit_rate=inbitrate;
break;
default:
ADM_assert(0);
}
c->codec_type = CODEC_TYPE_VIDEO;
c->flags=CODEC_FLAG_QSCALE;
c->width = info->width;
c->height = info->height;
AVRational fps25=(AVRational){1001,25025};
AVRational fps24=(AVRational){1001,24000};
AVRational fps30= (AVRational){1001,30000};
AVRational fpsfree= (AVRational){1000,_fps1000};
switch(_fps1000)
{
case 25000:
{
c->time_base= fps25;
break;
}
case 23976:
if(_type==MUXER_MP4 || _type==MUXER_PSP || _type==MUXER_FLV || _type==MUXER_MATROSKA)
{
c->time_base= fps24; //(AVRational){1001,24000};
break;
}
case 29970:
c->time_base=fps30;
break;
default:
{
if(_type==MUXER_MP4 || _type==MUXER_PSP || _type==MUXER_FLV || _type==MUXER_MATROSKA)
{
c->time_base=fpsfree;// (AVRational){1000,_fps1000};
break;
}
else
{
GUI_Error_HIG(QT_TR_NOOP("Incompatible frame rate"), NULL);
return 0;
}
}
break;
}
// Audio
//________
if(audioheader)
{
audio_st = av_new_stream(oc, 1);
if (!audio_st)
{
printf("Lav: new stream failed\n");
return 0;
}
c = audio_st->codec;
c->frame_size=1024; //For AAC mainly, sample per frame
printf("[LavFormat] Bitrate %u\n",(audioheader->byterate*8)/1000);
_audioFq=c->sample_rate = audioheader->frequency;
#if 0
if(_type== MUXER_PSP && audioheader->encoding==WAV_AAC)
{
_audioFq=c->sample_rate = audioheader->frequency/2; //_audioFq*=2; // SBR
}
#endif
switch(audioheader->encoding)
{
case WAV_AC3: c->codec_id = CODEC_ID_AC3;c->frame_size=6*256;break;
case WAV_MP2: c->codec_id = CODEC_ID_MP2;break;
case WAV_MP3:
#warning FIXME : Probe deeper
c->frame_size=1152;
c->codec_id = CODEC_ID_MP3;
break;
case WAV_PCM:
// One chunk is 10 ms (1/100 of fq)
c->frame_size=4;
c->codec_id = CODEC_ID_PCM_S16LE;break;
case WAV_AAC:
c->extradata=audioextraData;
c->extradata_size= audioextraSize;
c->codec_id = CODEC_ID_AAC;
break;
default:
if(_type==MUXER_MATROSKA)
{
if(ADM_WaveTag_to_lavcodec(audioheader->encoding, &(c->codec_id)))
{
if(audioextraData)
{
c->extradata=audioextraData;
c->extradata_size= audioextraSize;
}
// Put a dummy time increment
c->time_base= fps25;
break;
}
}
printf("Cant mux that ! audio\n");
printf("Cant mux that ! audio\n");
c->codec_id = CODEC_ID_MP2;
return 0;
break;
}
c->codec_type = CODEC_TYPE_AUDIO;
c->bit_rate = audioheader->byterate*8;
c->rc_buffer_size=(c->bit_rate/(2*8)); // 500 ms worth
c->channels = audioheader->channels;
_audioByterate=audioheader->byterate;
}
// /audio
//----------------------
switch(_type)
{
case MUXER_FLV:
case MUXER_PSP:
case MUXER_MP4:
case MUXER_MATROSKA:
oc->mux_rate=10080*1000; // Needed ?
break;
case MUXER_TS:
oc->mux_rate=10080*1000;
break;
case MUXER_DVD:
oc->packet_size=2048;
oc->mux_rate=10080*1000;
break;
case MUXER_VCD:
oc->packet_size=2324;
oc->mux_rate=2352 * 75 * 8;
break;
case MUXER_SVCD:
oc->packet_size=2324;
oc->mux_rate=2*2352 * 75 * 8; // ?
break;
default:
ADM_assert(0);
}
oc->preload=AV_TIME_BASE/10; // 100 ms preloading
oc->max_delay=200*1000; // 500 ms
if (av_set_parameters(oc, NULL) < 0)
{
printf("Lav: set param failed \n");
return 0;
}
if (url_fopen(&(oc->pb), filename, URL_WRONLY) < 0)
{
printf("Lav: Failed to open file :%s\n",filename);
return 0;
}
ADM_assert(av_write_header(oc)>=0);
dump_format(oc, 0, filename, 1);
printf("lavformat mpeg muxer initialized\n");
_running=1;
one=(1000*1000*1000)/_fps1000;
_curDTS=one;
return 1;
}