[vlc] Re: VLC MPEG2 streaming reception

[Gildas Bazin]

On Monday 14 February 2005 11:41, Robert.Smith at ses-astra.com wrote:
> Hello all,
> 
> I am currently attemping to use VLC to receive and re-stream an MPEG-2
> video stream coming from an Axis network camera. The stream in question is
> RTP, described by an SDP file, 25fps, PAL, CIF (352x288).
> The SDP file looks like this
> -- begin --
> v=0
> o=root 1108379884 1108379884 IN IP4 10.232.16.43
> s=AXIS 250S MPEG-2 Video Server RTP Stream from
> 10.232.16.43
> b=AS:1000
> t=0 0
> a=type:broadcast
> a=tool:AXIS 250S MPEG-2 Video Server 3.10
> m=video 30000 RTP/AVP 32
> c=IN IP4 228.96.0.1/11
> a=x-dimensions:352,288
> a=framerate:25
> a=x-iptv-svr:video 10.232.16.43 file 1 loop
> -- end --
> The stream is currently running over a 100baseTx switched LAN. I am using
> VLC 0.8.1 (precompiled binaries for Fedora Core 3 and Windows on 2
> different PCs).
> 
> I can receive the stream perfectly well using mplayer compiled the 
live.com
> streaming libraries.
> When I use VLC and the sdp file I get the error: "main demuxer error: no
> demux2 module matched "es"
> When I use the command "vlc -vvv udp/mpgv://@228.96.0.1:30000" I can see
> the stream but there are many missing blocks, as if the decoder were
> missing a lot of packets.
> 
> This looks to me like a demux problem. Does anyone have any ideas on the
> subject? I would very much appreciate suggestions.
> My next attempt will be using a version of VLC compiled for my platform,
> but I am rather skeptical about the result.
> 

AFAIk, at least the 1st problem was fixed recently.
Try with one of the nightly builds (http://www.videolan.org/~videolan).

If the video corruption problem persists, you can dump an extract of the 
stream with "vlc -vv udp/dump://@228.96.0.1:30000 
--demuxdump-file=yourdump" and upload it to 
ftp://streams.videolan.org/incoming so we can have a look.

--
Gildas

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