Archive for August, 2006

Some more experiments with VC-1

Thursday, August 31st, 2006

For those who interested, here is a very experimental patch to enable decoding of WVC1 codec in FFmpeg. I’m currently searching and downloading sample files but it is already tested a bit.


  1. Get FFmpeg sources (r614x should work)
  2. Download and apply patch (cd ffmpeg; patch -p0 < vc1-advanced.patch)
  3. Run configure and make

As always, non-working samples are welcome.


Tuesday, August 29th, 2006

I have got some letters and here I will try to summarize them.

You wrote some decoder, where can I find it?

When I reverse-engineer some codec I add decoder to FFmpeg (and soon it goes to other multimedia players) and description to Multimedia Wiki

Do you know how WMV3 video is stored in files?

I just have general ideas how it is stored. See Multimedia Wiki ASF page for details

Help! I have WMV3 sample that does not play {correctly, at all}.

Please follow instructions here. That’s the easiest way to get help (and other people than me may be interested in your samples).