The VideoLAN Forums

Posted: **13 Jan 2017 19:27**

Hello,

I should like to view the stream multicast from my provider (IPTV) on a unix box with VLC.
I got some URL but there is a strange behavior in VLC on Linux and the same on Windows
I try to open the stream network like this URL :
udp://@232.0.10.88:8200
I get 4 stream : 3 for audio and 1 for video
But nothing happens

Im message console I have :

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ts info: MPEG-4 descriptor not found for pid 0x12f type 0x11
ts info: MPEG-4 descriptor not found for pid 0x193 type 0x11
ts info: MPEG-4 descriptor not found for pid 0x1f7 type 0x11
ts error: libdvbpsi error (PSI decoder): TS discontinuity (received 12, expected 11) for PID 18
ts error: libdvbpsi error (PSI decoder): TS discontinuity (received 11, expected 10) for PID 0
ts error: libdvbpsi error (PSI decoder): TS discontinuity (received 14, expected 13) for PID 0

I surf in forum , I just find an old answer for the VLC 2.2.0 around this error :

Tools > Preferences > Input/Codecs > Demuxers > MPEG-TS:
- Disable 'Trust in-stream PCR'
- Check Seek based on percent not time
With this both options, m3u8 plays successfully with both sound and video

But in the VLC 2.2.4 I cannot try this workaround because there isn't this option.

Any idea to solve the problem ?

Thanks .

Posted: **14 Jan 2017 11:12**

I did a mistake when I wrote : "But in the VLC 2.2.4 I cannot try this workaround because there isn't this option."

In 2.2.4 , this option is in the software but the error is same.

So I tried to install VLC beta nightly build. -> Messages are differents.

Now J get :

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udp error: 1316 bytes packet truncated (MTU was 1316)
...
Message repeat

,

Any idea ?
Perhaps playing on the MTU , where is it ?

Posted: **18 Feb 2017 13:18**

With ffprobe (ffmpeg) i get this :

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ffprobe udp://232.0.10.89:8200
ffprobe version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2007-2017 the FFmpeg developers
[...]
[mpegts @ 0x8af4a20] PES packet size mismatch
    Last message repeated 2 times
[mpegts @ 0x8af4a20] Could not find codec parameters for stream 0 (Video: h264 ([27][0][0][0] / 0x001B), none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 0x8af4a20] Could not find codec parameters for stream 1 (Unknown: none ([17][0][0][0] / 0x0011)): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 0x8af4a20] Could not find codec parameters for stream 2 (Unknown: none ([17][0][0][0] / 0x0011)): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 0x8af4a20] Could not find codec parameters for stream 3 (Unknown: none ([17][0][0][0] / 0x0011)): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpegts, from 'udp://232.0.10.89:8200':
  Duration: N/A, start: 30661.769556, bitrate: N/A
  Program 9904 
    Metadata:
      service_name    : Arte
      service_provider: GLOBECAST
    Stream #0:0[0xcc]: Video: h264 ([27][0][0][0] / 0x001B), none, 90k tbr, 90k tbn, 180k tbc
    Stream #0:1[0x130](fra): Unknown: none ([17][0][0][0] / 0x0011)
    Stream #0:2[0x194](eng): Unknown: none ([17][0][0][0] / 0x0011)
    Stream #0:3[0x1f8](qad): Unknown: none ([17][0][0][0] / 0x0011)
    Stream #0:4[0x324](fra,fra,fra): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006), 492x250
Unsupported codec with id 0 for input stream 1
Unsupported codec with id 0 for input stream 2
Unsupported codec with id 0 for input stream 3

So the very simple question (even if the answer is more complcated) is how I can view the stream in vlc ?

Posted: **18 Feb 2017 15:49**

Are you sure the stream URL is correct?

Posted: **19 Feb 2017 10:00**

hi,
what do you mean , what could be a correct stream URL ?
In fact to get the URL to put in VLC I look with Wireshark the network and get the stream that was playing on the TV.
Is it possible that the URL need some more stuff . Have you a link where I can learn more on the URL stream. thanks.

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