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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I can run the live555ProxyServer, which if I understand correctly is unicast/multicast receiver, and unicast streamer.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m hoping I might get a few pointers regarding how to set up a proxy server which is a multicast streamer.<o:p></o:p></p>
<p class="MsoNormal">I aim to receive a single live camera source via unicast, then stream this data back out via multicast.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m able with the testH264VideoStreamer to get the multicast stream part tested and working.
<o:p></o:p></p>
<p class="MsoNormal">The issue I’m having is altering that example to take a live source rtsp url rather than an input file.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve read a few posts on here that talk about subclassing DeviceSource.<o:p></o:p></p>
<p class="MsoNormal">I haven’t done this yet would you explain why this might be required,<o:p></o:p></p>
<p class="MsoNormal">rather than just relying on RTPSource as the example clients do?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is how I think the multicast proxy should work:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Camera -> Source_1 (RTPSource) -> Source_2 (filter) -> Sink_1 ::::: I should be able to use testRTSPClient or equivalent here.<o:p></o:p></p>
<p class="MsoNormal">-> Magic -><o:p></o:p></p>
<p class="MsoNormal">Source_3 (built from Sink_1) -> Source_4 (filter) -> Sink_2 ::::: I should be able to use test*Streamer here.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I think I’m currently falling over as I attempt the Magic in the middle<o:p></o:p></p>
<p class="MsoNormal">to pass the data received from the camera (Sink_1) to the streamer (Source_3).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This magic must happen somewhere within the live555ProxyServer code<o:p></o:p></p>
<p class="MsoNormal">are you able to point me at the function, or explain the process if I have misunderstood?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When outputting to file with the debugFileSink line I get output but it isn’t playable in VLC.<o:p></o:p></p>
<p class="MsoNormal">Suggesting I’m missing header data or its just nonsense.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here is what I’ve tried thus far:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Following how I think the system should work, I’ve modified Sink_1, which from testRTSPClient refers to ‘class DummySink’.<o:p></o:p></p>
<p class="MsoNormal">In particular I altered the afterGettingFrame function, so it now contains:<o:p></o:p></p>
<p class="MsoListParagraph"><o:p> </o:p></p>
<p class="MsoListParagraph">// …<o:p></o:p></p>
<p class="MsoListParagraph">// Get the DummySink bytes into a Source object.<o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas"> ByteStreamMemoryBufferSource *memSource<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas"> = ByteStreamMemoryBufferSource::createNew(envir(), fReceiveBuffer, frameSize,<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas"> False, 0, durationInMicroseconds);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas"> if (memSource == NULL) {<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas"> *env << "Unable to load from memory as a byte-stream source\n";<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas"> exit(1);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas"> }<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas">FramedSource *videoES = memSource;<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas">// Apply H264 Filter to FramedSource<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas">// I’ve tried each of these and passing the memSource in to the sink’s startPlaying directly<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas">//H264VideoStreamFramer *videoSource = H264VideoStreamFramer::createNew(envir(), videoES);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas">H264VideoStreamDiscreteFramer *videoSource = H264VideoStreamDiscreteFramer::createNew(envir(), videoES);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas">// I also tried the H264VideoRTPSource but I don’t believe that is correct here as the DummySink class isn’t a subclass of RTPSink.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas">// so I can’t pass in a valid groupsock.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas"> // Output to file or streamer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas">#if CREATE_DEBUG_FILE<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas">debugFileSink->startPlaying(*videoSource, afterPlaying, &cd); // output to file on disk to confirm I’m creating valid frames<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas">#else<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas">sink_1_converter_sink->startPlaying(*videoSource, streamerAfterPlaying, &cd); // sink to be used as streamer source input<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas">#endif<o:p></o:p></span></p>
<p class="MsoListParagraph">// …<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:36.0pt"><span style="font-size:9.5pt;font-family:Consolas"><o:p> </o:p></span></p>
<p class="MsoNormal">My thinking here is that I have just received a frame at the DummySink and I can pass that along to the streamer (or my debug file) straight away.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In my main function I have:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">//…<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas">debugFileSink = H264VideoFileSink::createNew(*env, "test.264");</span><o:p></o:p></p>
<p class="MsoNormal">// only one openURL keeping things as simple as possible<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas">openURL(*env, argv[0], <url string>);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas">//…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas"><o:p> </o:p></span></p>
<p class="MsoNormal">The rest of the code in my main function is basically the main function from testH264VideoStreamer<o:p></o:p></p>
<p class="MsoNormal">with the sink_1_converter_sink passed in to the PassiveServerMediaSubsession.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Am I on the right train of thought?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any help is greatly appreciated.<o:p></o:p></p>
<p class="MsoNormal"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" align="center" style="text-align:center"><a href="http://www.scientificgames.com/"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:windowtext;mso-fareast-language:EN-GB;text-decoration:none"><img border="0" width="130" height="65" style="width:1.3541in;height:.677in" id="Picture_x0020_38" src="cid:image005.png@01D70BB2.CDAAB540"></span></a><span style="font-size:9.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:3.0pt"><b><span style="font-family:"Arial",sans-serif;color:#005D99;mso-fareast-language:EN-GB">Mark Hinchcliffe<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB">Solutions Architect<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB">Scientific Games<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#005D99;mso-fareast-language:EN-GB">O:</span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#005D99;mso-fareast-language:EN-GB">
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB">N/A
<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#005D99;mso-fareast-language:EN-GB">M:
</span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-GB">N/A
<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="color:#005D99;mso-fareast-language:EN-GB"><a href="http://www.sggaming.com/"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#005D99">Visit SGGaming.com</span></a><u><o:p></o:p></u></span></b></p>
<p class="MsoNormal"><a href="https://www.linkedin.com/company/scientific-games/"><b><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#C8119F;mso-fareast-language:EN-GB;text-decoration:none"><img border="0" width="29" height="31" style="width:.302in;height:.3229in" id="Picture_x0020_4" src="cid:image006.png@01D70BB2.CDAAB540" alt="A picture containing drawing, table
Description automatically generated"></span></b></a><span style="font-size:8.0pt;color:#C8119F;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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