[FFmpeg-user] AC-3 encoding questions

Carl Eugen Hoyos cehoyos at ag.or.at
Tue Nov 1 17:04:41 CET 2011

Thomas Worth <dev <at> rarevision.com> writes:

> I'm trying to encode some 6 channel, 24-bit WAV files, but am getting
> some warnings from FFmpeg:
> [ac3 @ 0x101920200] channel_layout not specified

(Complete, uncut output missing.)

If the wav file really has no channel layout specified, the ac3 encoder will
guess the layout (and says so if I am not wrong) as 5.1.
Only specify a layout if you don't like what the encoder guesses.

Carl Eugen

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