[Libav-user] need advice on new player

Nicolas George nicolas.george at normalesup.org
Mon Feb 20 08:28:58 CET 2012

Le primidi 1er ventôse, an CCXX, Deron a écrit :
> If I want to reduce the volume by 10db, what would be the command line
> be in ffmpeg (using libavi of course)?
> ffmpeg -f libavi -i "amovie=movie.avi, volume=-10db"
> ??


> How would I reproduce that with the audio filters directly? Any example
> out there?

With the ffmpeg command line tool, you can not, not yet.

With the library API, see examples/filtering.c: it is about video, but audio
works the same way, just use abuffer instead of buffer, etc.


  Nicolas George
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