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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Thanks, I was trying to get something concrete by analysing the network stream.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">This camera is unusual (compared to others we have) in that it sends an SPS and a PPS before every I frame.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">The SPS/PPS share an RTP frame in a STAP with no marker bit, while the I/P frames are in FU-A packets (with the marker set on the last
RTP frame).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I’ll post again when I get more information.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Thanks<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#5E5E5F">Deanna Earley |</span></b><span style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#5E5E5F"> Lead d</span><span style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#5E5E5F">eveloper <b>| </b></span><b><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:black">icatcher</span></b><b><span lang="EN-US" style="font-size:10.5pt;font-family:"Trebuchet MS",sans-serif;color:#FF9223">cctv</span></b><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"><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;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> live-devel [mailto:live-devel-bounces@ns.live555.com]
<b>On Behalf Of </b>Ross Finlayson<br>
<b>Sent:</b> 01 May 2015 18:17<br>
<b>To:</b> LIVE555 Streaming Media - development & use<br>
<b>Subject:</b> Re: [Live-devel] Multiple NALUs concatenated together in one afterGettingFrame<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">Our software uses liveMedia as an RTSP client to connect to network cameras to receive H.264 frames.</span><span style="font-family:"&apos",serif"><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">Our sink is being passed data from (presumably) the FramedSource class in response to data arriving from the camera/RTSP/H.264 video source and being depacketised.</span><span style="font-family:"&apos",serif"><o:p></o:p></span></p>
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<p class="MsoNormal">OK, it sounds like your network camera might not be implementing the RTP payload format for H.264 video correctly - i.e., it might not be setting the RTP ‘M’ bit correctly, or perhaps it might be packing multiple NAL units into a single
RTP packet in an incorrect way. Because of this, our H.264/RTP reception code (“H264VideoRTPSource”) may be getting confused, and treating a sequence of incoming NAL units as if it were a single NAL unit.<o:p></o:p></p>
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<p class="MsoNormal">Unfortunately you’re going to have to track this down yourself - e.g., by getting a packet trace of the offending incoming RTP packets from your camera. Unfortunately, if your camera is buggy (implementing the H.264 RTP payload format
incorrectly) then there’s not much we can do; you’d need to get your camera fixed.<o:p></o:p></p>
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<p class="MsoNormal"><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>
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