<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="color:rgb(7,55,99)">Hi guys,<br><br></div><div class="gmail_default" style="color:rgb(7,55,99)">Not sure if it will help but I previously found using the VLC's console (from menu View->Add interface->Console) very helpful for debugging this sort of issue. There is also an option for verbose logging, I think it was 'vlc.exe --verbose=2'.<br></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div style="color:rgb(7,55,99)"><br></div><div style="color:rgb(7,55,99)"><br></div><div><div><div dir="ltr"><div><font color="#073763">Kind regards,</font></div><div><font color="#073763"><br></font></div><div><b><u><font color="#073763"> </font></u></b></div><div><b><font color="#073763">Matthew Hale<br></font></b></div><div><b><br></b></div><div><font face="arial, helvetica, sans-serif"><b><span style="font-size:7.5pt;color:rgb(144,144,144)"><img src="https://ci3.googleusercontent.com/mail-sig/AIorK4yrRcANKLv1HuI3QeXCJT4v_dBTfXoTMutKGvrGlhUAoAwFlIBU0HBktqVzbOAasdDSkCoEmM4"><br>Web: <a href="http://www.scansoft.co.za/" style="color:rgb(17,85,204)" target="_blank">www.scansoft.co.za</a></span></b></font><font face="arial, helvetica, sans-serif"><b><span style="font-size:7.5pt;color:rgb(144,144,144)"><br>Tel: +27 21 913 8664</span></b></font><b><span style="font-size:7.5pt;color:rgb(144,144,144)"><font face="arial, helvetica, sans-serif"><br>Cell: +27 76 118 4748<br></font></span></b></div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Nov 9, 2023 at 12:26 AM Ross Finlayson <<a href="mailto:finlayson@live555.com">finlayson@live555.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
<br>
> On Nov 8, 2023, at 12:49 PM, Eric Eastman <Eric.Eastman@AITEngineering.com> wrote:<br>
> <br>
> I was able to update to the latest live555. Here is the output from openRTSP and the audio file output. Every player I use says it's corrupted and doesn't understand the compression.<br>
<br>
Hold on. You said before that if your “ServerMediaSession” contained only the “ServerMediaSubsession” for audio, but not the “ServerMediaSubsession” for video, then your media player (RTSP client) was able to play the audio OK. Is that still the case?<br>
<br>
If that’s the case, then it’s unlikely that “every player [you] use” is now (for the combined audio+video session) telling you that "it's corrupted and doesn't understand the compression”. Instead, it’s more likely that the problem is something about your *combination* of the audio and video streams, not the audio stream (or the video stream) per se.<br>
<br>
My guess is that the problem is that your audio and video streams have wildly different presentation times, which would come about if your audio and video sources have clocks that are badly out of sync.<br>
<br>
So, my suggestion is to make sure that:<br>
1/ Your Axis encoder (that contains the server that’s generating the back-end audio stream),<br>
and<br>
2/ The computer for your RTSP server<br>
have clocks that are roughly ‘in sync’ - i.e., generate similar ‘wall clock’ times (the times that you’d get by calling “gettimeofday()”)<br>
<br>
<br>
> I also tested with the -4 option and piped it to a test.mp4. The test.mp4 has video but no audio.<br>
<br>
OK, but the audio (PCM u-law) is still valid (PCM u-law), because the following still produces a playable audio file:<br>
ffmpeg -f mulaw -ar 8000 -ac 1 -i audio-PCMU-2 test.wav<br>
<br>
(In any case, we’re now approaching the limit for how much support I can continue to give to your project ‘for free’ on this mailing list…)<br>
<br>
<br>
Ross Finlayson<br>
Live Networks, Inc.<br>
<a href="http://www.live555.com/" rel="noreferrer" target="_blank">http://www.live555.com/</a><br>
<br>
<br>
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</blockquote></div></div>