[FFmpeg-user] map_channel deprecated

Nicolas George george at nsup.org
Sun Oct 20 09:55:13 CEST 2013


Le septidi 27 vendémiaire, an CCXXII, Elliott Balsley a écrit :
> I've been using ffmpeg with -map_channel to extract two channels from a
> multi-channel audio stream.  It works, but gives this warning:
> -map_channel is forwarded to lavfi similarly to -af pan=0x3:c0=c0:c1=c1.
> [pan @ 0x7f8e9b42bde0] This syntax is deprecated. Use '|' to separate the
> list items.

Do not worry about it: it is just an artifact of the way map_channel is
implemented internally that nobody has bothered to update until now, but it
has no consequence.

> I have a hard time finding good documentation on lavfi, and don't really
> understand how to use it.

What is wrong with
http://ffmpeg.org/ffmpeg-filters.html
?

Regards,

-- 
  Nicolas George
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