[FFmpeg-user] unknown decoder libvpx

Leo Izen leo.izen at gmail.com
Wed Jan 22 07:48:57 CET 2014

On 01/22/2014 12:53 AM, Jun Jie Pang wrote:
> However, when i run ffmpeg,
> $ffmpeg -f x11grab -r 25 -s 1280x720 -i :2.0 -vcodec libvpx out.webm
> I encountered with an error of "Unknown encoder 'libvpx' "
> Anyone happens to know what went wrong ?

libvpx now comes with vp8 AND vp9 support. You need to do
-vcodec libvpx_vp8
-vcodec libvpx_vp9
depending on whether you want vp8 or vp9 as your video codec.

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