[streaming] Re: Problems with timer discontinuity

Damien LUCAS nitrox at videolan.org
Tue Mar 11 23:08:21 CET 2003


Pablo Frank wrote:
> Hi,
> 
> I have a Linux PC with a Foresystems Le155 ATM NIC that I'm using to stream
> video.

MPEG2-TS over ATM ! great technologies !

>  For each "channel", I have configured a bridged ethernet device
> using br2684ctl tool.  I have not put any traffic shaping parameters on the
> ATM VCs-- they are just UBR "anything-goes" VCs.
> 
> The video files that I'm streaming are 5 Mbps MPEG-TS files- I can't tell
> you much more than that.  Anyway, the video streams quite nicely but roughly
> every ten minutes are so, the server reports a timer discontinuity
> (src/server/tsstreamer.cpp).  For about 15-20 seconds or so, the streamer
> will blast 40-50 Mbps of video out that VC and then it eventually recovers.
> What is more bizarre is that always takes place in the same spot in the
> video.  I have 3 files that all exhibit this behaviour.  What is going on
> here?  And why the drastic action?

I think it could come from your files since we don't have this problem 
usualy. I think you can try few things:
  1. Could you upload on of your files so that I look at it ?
  2. Could you try with a 'standard' file ?
      (see in ftp://ftp.videolan.org/pub/videolan/streams/)
  3. Look if you still have the problem with the new streamer in the 
current CVS version.


Regards,

-- 
nitrox

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