[vlc] Trouble reading an RTP stream with payload type MPV

[Jeff Kowing]

First of all, sorry for being so stupid and thanks to everyone
responsible for VLC.  I am on Fedora Core 1 and used the rpms from the
VLC site.  I am on a computer called igor and want to use RTP (with
payload type MPV 32 for the video) for unicast streaming of an MPEG-2
sample.  I do the following as recommended on a previous post:

$ vlc -vvv dhl.mpg --sout
'#rtp{dst=139.169.132.106,sdp=http://igor.jsc.nasa.gov:8080/dhl.sdp}'

and everything looks good when I examine things with ethereal.

My problem is that I cannot play the stream with a VLC client and I
think the problem is that the client cannot figure out how to demux the
stream.  I run the client as follows:

$ vlc -vvv http://igor.jsc.nasa.gov:8080/dhl.sdp

and it seems to get the SDP okay.  But from the messages below it looks
like the client thinks it is trying to read a MPEG-PS stream or
something.  Also, I notice the messages say something about not being
able to load an ES module I suspect I need?  Anyways, could someone help
point me in the right direction as to what I might be doing wrong? 
Thanks for your help.

Here is some of the output of the vlc client:

[00000222] main input debug: access `http', demux `', name
`igor.jsc.nasa.gov:8080/dhl.sdp'
[00000222] main input debug: looking for access module
[00000222] main input debug: probing 1 candidate
[00000222] access_http input debug: http: server='igor.jsc.nasa.gov'
port=8080 file='/dhl.sdp
[00000222] main input debug: net: connecting to 'igor.jsc.nasa.gov:8080'
[00000222] main input debug: looking for network module
[00000222] main input debug: probing 2 candidates
[00000222] ipv4 input debug: connection in progress
[00000172] main module debug: using network module "ipv4"
[00000172] main module debug: unlocking module "ipv4"
[00000222] access_http input debug: protocol 'HTTP' answer code 200
[00000222] access_http input debug: Content-Type: application/sdp
[00000222] access_http input debug: stream size=181
[00000021] main module debug: using access module "access_http"
[00000222] main input debug: looking for demux module
[00000222] main input debug: probing 7 candidates
[00000222] ts_dvbpsi input error: cannot peek()
[00000222] ts input error: cannot peek()
[00000222] main input debug: demux2_New:
'http://igor.jsc.nasa.gov:8080/dhl.sdp' -> access='' demux=''
path='igor.jsc.nasa.gov:8080/dhl.sdp'
[00000224] main demuxer debug: looking for demux2 module
[00000224] main demuxer debug: probing 26 candidates
[00000224] mp4 demuxer warning: MP4 plugin discarded (not a valid file)
[00000224] avi demuxer warning: avi module discarded (invalid header)
[00000224] asf demuxer warning: ASF plugin discarded (not a valid file)
[00000224] flac demuxer warning: flac module discarded (no startcode)
[00000224] aac demuxer warning: AAC module discarded
[00000224] main demuxer debug: looking for id3 module
[00000224] main demuxer debug: probing 2 candidates
[00000222] id3tag input debug: checking for ID3 tag
[00000130] main module debug: using id3 module "id3tag"
[00000130] main module debug: unlocking module "id3tag"
[00000224] mpga demuxer warning: mpga module discarded
[00000224] mpgv demuxer warning: ES module discarded (no startcode)
[00000224] mkv demuxer warning: matroska module discarded (invalid
header 0x763d300a)
[00000224] ogg demuxer warning: ogg module discarded (invalid header)
[00000224] aiff demuxer warning: AIFF module discarded
[00000224] au demuxer warning: AU module discarded
[00000224] mod demuxer warning: MOD module discarded (extention
'jsc.nasa.gov:8080/dhl.sdp' unknown)
[00000224] playlist demuxer warning: old import module discarded:
invalid file
[00000224] playlist demuxer warning: m3u import module discarded
[00000224] playlist demuxer warning: pls import module discarded
[00000224] nsv demuxer warning: NSV module discarded
[00000224] pva demuxer warning: PVA module discarded
[00000224] ts2 demuxer warning: TS module discarded
[00000224] real demuxer warning: Real module discarded
[00000222] ps input warning: this does not look like an MPEG PS stream,
but continuing anyway
[00000222] main input debug: looking for mpeg-system module
[00000222] main input debug: probing 1 candidate
[00000122] main module debug: using mpeg-system module "mpeg_system"
[00000144] main module debug: using demux module "ps"
[00000222] mpeg_system input warning: garbage (0x763d300a)
[00000222] main input: EOF reached
[00000222] main input debug: 1 loops consuming user: 0, system: 0
[00000222] main input debug: dumping stream ID 0x0 [OK:0/D:0]
[00000222] main input debug: pace controlled
[00000222] main input debug: dumping program 0x0, version 0 (partial)
[00000122] main module debug: unlocking module "mpeg_system"
[00000144] main module debug: unlocking module "ps"
[00000021] main module debug: unlocking module "access_http"
[00000222] main input debug: pes: 0 packets
[00000222] main input debug: data: 0 packets
[00000222] main input debug: buffers: 2 packets
[00000222] main input debug: freeing info structures...
[00000222] main input debug: thread 101374896 joined
(src/input/input.c:373)
 


-- 
Jeff Kowing <jeffrey.d.kowing at nasa.gov>
All opinions expressed are my own and not of my employer.


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