[gst-devel] dshowvideosrc with a mux

Andy Sturges andy at sturges.me.uk
Wed Apr 23 01:40:32 CEST 2008

I am trying to capture video and audio and mux them into a single file 
on windows XP, but am seeing very slow video capture when using any form 
of mux.  To illustrate the problem here a a couple of simple examples:

This pipeline works fine:

    gst-launch-0.10.exe dshowvideosrc ! ffmpegcolorspace  ! directdrawsink

but adding a mux/demux stage into the pipe causes the video to be very 

   dshowvideosrc ! ffmpegcolorspace ! avimux ! avidemux ! 
ffmpegcolorspace ! directdrawsink

I have tried adding queues and videorate controls but this makes no 

Any input on this problem welcome,


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