[Live-devel] i can not mix the h264 and ADTS AAC together to VLC player From EasyDarwin
lijun at ndtv.com.cn
lijun at ndtv.com.cn
Sun Feb 10 19:00:35 PST 2019
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I don't get more detail reply , I think my description is not enough clear, so after rearrange my word, I submit it again.
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<p>
[1]<br />
i have implemented a RTSP Server(like proxy server), packetizing the audio and video stream to TS from EasyDarwin
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[2]<br />
if only have h264 or only have ADTS AAC stream VLC play is ok.
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<br />
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[3]<br />
but mixed h264 and ADTS AAC together, after a few seconds VLC only play video.<br />
audio packet will be lost, i see it from the VLC [current media information] dialog -> [statistics] tab -> Lost.
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[4]<br />
my audio stream code as ADTSAudioFileSource
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<br />
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[5]<br />
my h264 code snippet is in below<br />
void BlockSource::doGetNextFrame()<br />
{<br />
if (_bFirst)<br />
{<br />
fFrameSize = MyExchangeBuffer::Inst().readFirstFromVideoBlock(_strBlockName.c_str(), fTo, fMaxSize);<br />
_bFirst = false;<br />
}<br />
else<br />
{<br />
fFrameSize = MyExchangeBuffer::Inst().readFromVideoBlock(_strBlockName.c_str(), _pBlockChunkPointer, fTo, fMaxSize);<br />
}
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<p>
<br />
gettimeofday(&fPresentationTime, NULL);//i dont know how to set it correctly...<br />
fDurationInMicroseconds = 1000000 / 22;//i dont know how to dynamic set it, so i set it to 22 fps.
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<p>
nextTask() = envir().taskScheduler().scheduleDelayedTask(fDurationInMicroseconds,<br />
(TaskFunc*)FramedSource::afterGetting, this);<br />
}
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<br />
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[6]<br />
my sub session source snippet in below<br />
FramedSource * TSFromH264BlockServerMediaSubsession::createNewStreamSource(unsigned /*clientSessionId*/, unsigned & estBitrate)<br />
{<br />
estBitrate = 2500; // kbps, estimate<br />
MPEG2TransportStreamFromESSource* tsFrames = MPEG2TransportStreamFromESSource::createNew(envir());<br />
...<br />
BlockSource* blockSource = BlockSource::createNew(envir(), _strBlockName.c_str());//H264 from RTSPClient<br />
if (blockSource == NULL)<br />
return NULL;<br />
H264VideoStreamFramer* framer = H264VideoStreamFramer::createNew(envir(), blockSource, True/*includeStartCodeInOutput*/);<br />
tsFrames->addNewVideoSource(framer, 5/*mpegVersion: H.264*/);<br />
...<br />
tsFrames->addNewAudioSource(adtsSource, 4/*mpegVersion: AAC*/);<br />
return MPEG2TransportStreamFramer::createNew(envir(), tsFrames);//blockSource<br />
}
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<p>
RTPSink * TSFromH264BlockServerMediaSubsession::createNewRTPSink(Groupsock * rtpGroupsock, unsigned char rtpPayloadTypeIfDynamic, FramedSource * inputSource)<br />
{<br />
return SimpleRTPSink::createNew(envir(), rtpGroupsock,<br />
33, 90000, "video", "MP2T",<br />
1, True, False /*no 'M' bit*/);<br />
}
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<p>
[7]<br />
//pBlockName is a string.<br />
sms->addSubsession(kagula::TSFromH264BlockServerMediaSubsession::createNew(env, pBlockName, false));<br />
rtspServer->addServerMediaSession(sms);
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<br />
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<p>
[8]I need help, any advise will be appreciate
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