VLS dumping data out too fast

James Courtier-Dutton James at superbug.demon.co.uk
Fri May 3 00:35:45 CEST 2002

Ken McCullagh wrote:

>Hi guys,
>I've been playing with VLS, VLC and VLMS for a little while now, and I
>had problems with VLC playing data streamed from VLMS. I was using one
>particular stream, and every time the VLC would start showing some jumpy
>video, followed by INPUT_MAX_ALLOCATION reached and then it would hang.
>The same stream however, streams perfectly from the VLMS.
>further analysis shows that the stream is sent over 30 seconds when
>using VLMS, but when using VLS it gets sent in 0.9 seconds (this was
>determined using a packet sniffer on the client machine)  - the size of
>the file is 10.5 MB
>Has this ever been encountered before? I put some code in there, first
>attempt, to delay sending the packets (just a simple waiting loop in
>C_NetOutput::WriteToPort() before it sends the data out) and this stops
>the VLC client falling over, and the data is sent over a longer time.
>When I play a different stream across from VLS to VLC then everything is
I think VLS uses the SCR from the stream to rate limit the output.
If the original stream has bad SCR values, you might see the problem you 
are getting.


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