[vlc] VLC VideoStreaming Cache to zero

[Jean-Paul Saman]

On Wed, Sep 8, 2010 at 3:51 PM, Matthias Liebl-Tabeling | szenaris
GmbH <matthias.liebl-tabeling at szenaris.com> wrote:
> Dear VIDEOLAN Support or FORUM,
>
> since we are using VLC VIDEOLAN to stream a screen part as live video we
> have a special question:
>
> With FFMPEG we transfer the stream to a LINUX device (via WLAN) and
> sometimes we have a delay of several seconds or while a very busy WLAN even
> minutes.
>
> Is there a cache we can set to zero, so we don't have such an enormous delay
> any more?
>
> We don't need every captured frame but the delay should be as little as
> possible.
>
> This VLC start parameters we are using to initialize VLC:
>
> ###################################
> start c:\progra~2\videolan\vlc\vlc.exe -vvv screen:// :screen-fps=25
> :screen-caching=300 :screen-left=369 :screen-top=26 :screen-width=352
> :screen-height=288
> --sout=#transcode{vcodec=mp1v,vb=256,fps=25}:std{access=udp,mux=raw,dst=225.0.0.37,port=1234}
> --mtu 1300 --qt-start-minimized
> ###################################
>
> Any idea to set cache or buffer to zero?

I assume you use vlc as client? If so, then check if the client vlc
automatically adjusts to the link speed and jitter. Add '-vvv' to the
commandline and you should seen vlc rebuffering at times in the log.
If this is indeed the case, then only source code modification can
help.

> Many thanks for help ;-)
>
> Regards,
>
> Matthias Liebl-Tabeling
>
> Dipl.-Ing., Senior Software Developer
>
> ____________________________________________

Kind regards,
Jean-Paul Saman