[Live-devel] saving incoming RTP A/V stream as MPEG-2 transport stream

[Markus Schumann]

Ross,

Thanks for your initial answer!

I am still trying to save an incoming RTP AVC/AAC stream inside a MPEG-2 transport stream.

I followed the flow of your testRTSPClient.cpp example which worked perfectly for my first application.


I created a MPEG2TransportStreamFromESSource, FileSink and MediaSession.


pRTSPClient->m_pMPEG2TransportStreamFromESSource = MPEG2TransportStreamFromESSource::createNew(env);

pRTSPClient->m_pFileSink = FileSink::createNew(env,pRTSPClient->m_sOutputFilename.c_str());



scs.m_pMediaSession = MediaSession::createNew(env, sdpDescription);



For each MediaSubsession

I am always getting AVC/AAC - hence 5 & 4 as MPEG type

for each sub session I do:

     if( strcmp(scs.m_pMediaSubsession->mediumName(),"video") == 0)
      {
         pRTSPClient->m_pMPEG2TransportStreamFromESSource->addNewVideoSource(scs.m_pMediaSubsession->readSource(),5);
      }
      if( strcmp(scs.m_pMediaSubsession->mediumName(),"audio") == 0)
      {
         pRTSPClient->m_pMPEG2TransportStreamFromESSource->addNewAudioSource(scs.m_pMediaSubsession->readSource(),4);
      }
      else
      {
         // error
      }

Do I set scs.m_pMediaSubsession->sink?

Do I call scs.m_pMediaSubsession->sink->startPlaying( *(scs.m_pMediaSubsession->readSource()),
                                                    RecordingSubsessionAfterPlaying,
                                                    scs.m_pMediaSubsession);



How Do I feed a MPEG2TransportStreamFromESSource into the file sink?

I only found pRTSPClient->m_pFileSink->startPlaying(   *pRTSPClient->m_pMPEG2TransportStreamFromESSource,
                                             NULL,
                                             NULL);



Thanks
Markus




From: live-devel-bounces at ns.live555.com [mailto:live-devel-bounces at ns.live555.com] On Behalf Of Ross Finlayson
Sent: Saturday, April 13, 2013 2:08 PM
To: LIVE555 Streaming Media - development & use
Subject: Re: [Live-devel] saving or rebroadcasting incoming RTP A/V stream as MPEG-2 transport stream

I saw various source files (e.g. MPEG2TransportStreamMultiplexor.cpp) muxing into MPEG-2 TS.
Is there a way a save and/or rebroadcast incoming RTP streams as MPEG-2 TS with the given code.

Yes, provided, of course, that the codec(s) used by the incoming RTP stream(s) are ones that can be carried within MPEG Transport Streams.

You can do this by creating a "MPEG2TransportStreamFromESSource" object.  Then, on this object, call "addNewVideoSource()" and/or "addNewAudioSource()", from the corresponding "MediaSubsession::readSource()".  You can then feed the "MPEG2TransportStreamFromESSource" object into a "FileSink".

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/

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