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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Ross,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks for the quick response.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Ok, So I’ve started my own MPEG2PesParser class that extends FramedFilter to do the parsing. I started the implementation for doGetNextFrame() and understand
how to parse the PES from the datagram payload but I still do not see how to get at the data nor how to pass that data along to the sink.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I set some breakpoints in RTPInterface and see the startNetworkReading being called in response to the PLAY request but the incomingReportHandler is not called.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Seems my MPEG2PesParser::doGetNextFrame() is being called before the RTPInterface::incomingReportHandler is called.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">What am I missing?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Dave Garrison</span></b><span style="color:#1F497D">
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> live-devel-bounces@ns.live555.com [mailto:live-devel-bounces@ns.live555.com]
<b>On Behalf Of </b>Ross Finlayson<br>
<b>Sent:</b> Monday, January 20, 2014 8:47 PM<br>
<b>To:</b> LIVE555 Streaming Media - development & use<br>
<b>Subject:</b> Re: [Live-devel] streaming h264 dynamic payload from rtp source<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">I’ve been looking at the examples and have tried to accomplish setting up an RTSP server that can stream RTP H264 dynamic payload from a live RTP source carrying MPEG2 Transport
with H264 PES payload and keep running into problems. Any guidance would be greatly appreciated.<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Dave,<o:p></o:p></p>
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<p class="MsoNormal">The bad news is that you're on completely the wrong track :-) The good news, however, is that it will probably be fairly easy to do what you want.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The first thing to note is that the "LIVE555 Streaming Media" code does not include any mechanism for demultiplexing one (or more) stream(s) from a Transport Stream. (Note that the "MPEG1or2Demux" class is for demultiplexing a MPEG *Program
Stream*, which is completely different.) Also, the "IndexFromTransportStream" code is for creating a separate index file from a Transport Stream file - to later use for 'trick play' access to the original file. It has nothing to with demultiplexing from
a Transport Stream.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Therefore, I suggest that you find (or write) some other software that will convert an input Transport Stream into an output H.264 video stream (consisting of a byte-stream that contains a sequence of H.264 NAL units, each beginning with
a 0x00 0x00 0x00 0x01 'start code'). There is probably some other Open Source software out there that will do this.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Then, write your own "OnDemandServerMediaSubsession" subclass that:<o:p></o:p></p>
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<p class="MsoNormal">1/ Reimplements "createNewStreamSource()" to create a new instance of your 'Transport Stream-to-H.264 Video conversion software', and feed this into a "H264VideoStreamFramer" (*not* a "H264VideoStreamDiscreteFramer", unless your conversion
software delivers discrete H.264 NAL units (i.e., one-at-a-time), without start codes).<o:p></o:p></p>
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<p class="MsoNormal">2/ Reimplements "createNewRTPSink()" to return a new "H264VideoRTPSink". (You got that part right :-)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Even simpler, though, you can probably get what you want by doing the following:<o:p></o:p></p>
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<p class="MsoNormal">- Change the "testOnDemandRTSPServer" code by changing line 92 of "testProgs/testOnDemandRTSPServer.cpp" from<o:p></o:p></p>
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<p class="MsoNormal"><span class="apple-tab-span"> </span>char const* inputFileName = "test.264";<o:p></o:p></p>
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<p class="MsoNormal">to<o:p></o:p></p>
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<p class="MsoNormal"><span class="apple-tab-span"> </span>char const* inputFileName = "stdin";<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Then, run<o:p></o:p></p>
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<p class="MsoNormal"><span class="apple-tab-span"> </span>Your-Transport-Stream-to-H264-Video-Conversion-Application | testOnDemandRTSPServer<o:p></o:p></p>
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<p class="MsoNormal">(assuming that 'Your-Transport-Stream-to-H264-Video-Conversion-Application' outputs to 'stdout')<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">This should work, provided that the input stream contains frequently-occurring H.264 SPS and PPS NAL units.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal"><span class="apple-style-span"><span style="font-family:"Helvetica","sans-serif";color:black">Ross Finlayson</span></span><span style="font-family:"Helvetica","sans-serif";color:black"><br>
<span class="apple-style-span">Live Networks, Inc.</span><br>
<span class="apple-style-span"><a href="http://www.live555.com/">http://www.live555.com/</a></span></span>
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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