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

[Pedro Sanchez]

Thanks Yogesh,

My next step is to try to get RFC 2429 streams out of this box and see
what VLC does. Failing this one I could certainly look at the time
stamps and RTCP packets to see if there is a timing problem, but I doubt
it.

Thanks,

-- 
Pedro

On Tue, 2007-05-01 at 05:54 +0100, Yogesh Sharma wrote:
> Hi,
> 
> this problem "Video Stream couldn't render" may be because of RTCP,
> please try it by disabling RTCP, so that u can certain. this problem
> arise because of Timestamp calculation in VLC. and every time RTCP
> send RR and analyising the TS, which is quite differ from the TS as
> Receive from server. so Video Stream would be discarded.
> 
> but Audio Stream would be playback, because VLC assume Audio Stream TS
> as base.
> 
> regards,
> Yogesh Sharma
> 
> 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,
>         
>         -- 
>         Pedro
>         
>         
>         
>         RSTP Negotiation
>         -----------------
>         
>         OPTIONS rtsp://pkany187/mas1 RTSP/1.0
>         CSeq: 28
>         User-Agent: VLC media player (LIVE555 Streaming Media
>         v2006.10.27)
>         
>         RTSP/1.0 200 OK
>         Server: DSS/5.5.4 (Build/489.13; Platform/Linux;
>         Release/Darwin; )
>         Cseq: 28
>         Public: DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE, OPTIONS,
>         ANNOUNCE,
>         RECORD
>         
>         
>         DESCRIBE rtsp://pkany187/mas1 RTSP/1.0
>         CSeq: 29
>         Accept: application/sdp
>         User-Agent: VLC media player (LIVE555 Streaming Media
>         v2006.10.27)
>         
>         
>         RTSP/1.0 200 OK
>         Server: DSS/5.5.4 (Build/489.13; Platform/Linux;
>         Release/Darwin; )
>         Cseq: 29
>         Cache-Control: no-cache
>         Content-length: 291
>         Date: Mon, 30 Apr 2007 15:24:07 GMT
>         Expires: Mon, 30 Apr 2007 15:24:07 GMT
>         Content-Type: application/sdp
>         x-Accept-Retransmit: our-retransmit
>         x-Accept-Dynamic-Rate: 1
>         Content-Base: rtsp://pkany187/mas1/
>         
>         v=0
>         o=NNMAS 1 696 IN IP4 47.135.81.46
>         s=-
>         e=unknown at invalid.net
>         c=IN IP4 0.0.0.0
>         t=0 0
>         a=control:*
>         m=audio 0 RTP/AVP 0 8
>         a=rtpmap:0 PCMU/8000
>         a=rtpmap:8 PCMA/8000
>         a=ptime:20
>         a=control:trackID=1
>         m=video 0 RTP/AVP 34
>         a=rtpmap:34 H263/90000
>         a=fmtp:34 QCIF=2
>         a=control:trackID=2
>         
>         SETUP rtsp://pkany187/mas1/trackID=1 RTSP/1.0
>         CSeq: 30
>         Transport: RTP/AVP;unicast;client_port=1214-1215
>         User-Agent: VLC media player (LIVE555 Streaming Media
>         v2006.10.27)
>         
>         
>         RTSP/1.0 200 OK
>         Server: DSS/5.5.4 (Build/489.13; Platform/Linux;
>         Release/Darwin; )
>         Cseq: 30
>         Cache-Control: no-cache
>         Session: 1146625655801014436
>         Date: Mon, 30 Apr 2007 15:24:07 GMT
>         Expires: Mon, 30 Apr 2007 15:24:07 GMT
>         Transport:
>         RTP/AVP;unicast;source=47.130.105.187;client_port=1214-1215;server_port=6970-6971
>         
>         
>         PLAY rtsp://pkany187/mas1/ RTSP/1.0
>         CSeq: 31
>         Session: 1146625655801014436
>         Range: npt=0.000-
>         User-Agent: VLC media player (LIVE555 Streaming Media
>         v2006.10.27)
>         
>         
>         RTSP/1.0 200 OK
>         Server: DSS/5.5.4 (Build/489.13; Platform/Linux;
>         Release/Darwin; )
>         Cseq: 31
>         Session: 1146625655801014436
>         Range: npt=now-
>         RTP-Info: url=rtsp://pkany187/mas1/trackID=1
>         
>         
>         TEARDOWN rtsp://pkany187/mas1/ RTSP/1.0
>         CSeq: 32
>         Session: 1146625655801014436
>         User-Agent: VLC media player (LIVE555 Streaming Media
>         v2006.10.27)
>         
>         
>         RTSP/1.0 200 OK
>         Server: DSS/5.5.4 (Build/489.13; Platform/Linux;
>         Release/Darwin; )
>         Cseq: 32
>         Session: 1146625655801014436
>         Connection: Close
>         
>         
>         
>         -- 
>         This is the vlc mailing-list, see http://www.videolan.org/vlc/
>         To unsubscribe, please read
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>         
> 
> 
> 
> Thanks & Regards,
> Yogesh Sharma
> 9868666542
> 
> 
> 
> ______________________________________________________________________
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