[MPlayer-users] A question on codecs

Mark Blain mblain2 at yahoo.com
Tue May 10 15:27:02 CEST 2011

Ingo Brückl <ib at wupperonline.de> wrote in
news:4dc920fb.09cc35ba.bm000 at wupperonline.de: 

> I have a captured wmv live stream that makes MPlayer/Linux
> printing 
>   Win32 LoadLibrary failed to load:
>   /usr/share/mplayer/codecs/wmv9dmod.dll 
> and suggesting the download of the binary codecs package.
> But playback is just fine without it, and after getting the codec
> I cannot spot any difference.
> So, what would the codec be good for?
> Ingo

There are many cases where multiple codecs are able to process the 
same audio or video.  Libavcodec can decode WMV video, as documented 

In your case Mplayer is trying its preferred codec first per 
codecs.conf, and uses libavcodec when it's not found.

One way to suppress the warning is to force a particular video codec 
or codec family with the -vc or -vfm options, as shown in the man 

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