[vlc] Re: Does VLC handle H.263 video over RTP?

[Pedro Sanchez]

On Mon, 2007-04-30 at 20:46 +0200, Kim Schulz wrote:
> On Mon, 30 Apr 2007 12:47:38 -0400
> "Pedro Sanchez" <psanchez at nortel.com> wrote:
> 
> > On Mon, 2007-04-30 at 18:13 +0200, Kim Schulz wrote:
> > > On Mon, 30 Apr 2007 11:57:41 -0400
> > > "Pedro Sanchez" <psanchez at nortel.com> wrote:
> > > 
> > > > Hello,
> > > > 
> > > > I'm trying to get VLC to decode a H.263 video stream that comes
> > > > over RTP. The video server offers two tracks, one for audio and
> > > > one for video. VLC only requests to play the audio track and
> > > > ignores video. Is there something special that has to be present
> > > > in the offered SDP for VLC to send the SETUP and PLAY commands to
> > > > the video server?
> > > > 
> > > > I'm using VLC 0.8.6 on both XP and Linux with identical results.
> > > > For your reference, I attach the RSTP negotiation that takes
> > > > between VLC and the video server.
> > > > 
> > > > Thanks,
> > > > 
> > > 
> > > I actually have kinda the same problem. The video is played just
> > > fine, but the audio (in my case mp3) is completely ignored. I have
> > > logged the RTP traffic and can see that VLC do get the audio
> > > packets but nothing ever happens to them (they are not even
> > > mentioned in the logs - log level 2). 
> > > 
> > > -- 
> > >     Kim Schulz       | Blog: http://www.schulz.dk/
> > > Email: Kim at schulz.dk | Work: http://www.devteam.dk/
> > > Phone: +45 5190 4262 | Fun : http://www.chilifan.dk/
> > > 
> > 
> > Is your video H.263? If so, can you share the SDP you are using?
> > 
> sure.
> The SDP I send looks like:
> v=0
> o=VDP 1097139000 1097144000 IN IP4 192.168.0.1
> s=VDP DEMO
> t=0 0
> m=video 8888 RTP/AVP 34
> c=IN IP4 192.168.0.1
> a=rtpmap:34 H263-2000/90000
> a=cliprect:0,0,576,704
> m=audio 8890 RTP/AVP 14
> c=IN IP4 192.168.0.1
> b=AS:96
> a=rtpmap:14 MPA/22050/2
> 
> 
> The video is shown just fine (besides some timing issues - see other
> post) but the audio is completely ignored. I can see in wireshark that
> vlc does in fact get the audio data but it does not recognize it. 
> -- 
>     Kim Schulz       | Blog: http://www.schulz.dk/
> Email: Kim at schulz.dk | Work: http://www.devteam.dk/
> Phone: +45 5190 4262 | Fun : http://www.chilifan.dk/
> 

Maybe using a dynamic payload type for audio instead? 

http://www1.ietf.org/mail-archive/web/avt/current/msg00666.html

-- 
Pedro


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