[vlc] VLC MPEG2 streaming reception

Robert.Smith at ses-astra.com Robert.Smith at ses-astra.com
Mon Feb 14 12:41:57 CET 2005


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.

best regards,
Robert
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