[MPlayer-users] lavc acodec

Giacomo Comes comes at naic.edu
Mon Oct 4 17:07:29 CEST 2004


On Sun, Oct 03, 2004 at 02:20:26PM -0700, Ricardo Kleemann wrote:
> Thank you for pointing out my errors.
> 
> > The available codecs are listed in the man page under "acodec=".  It's
> > all or nothing...  If you have libavcodec at all, all of them should
> > work.
> 
> Ok, so libacodec works for me, but for some reason mp3 doesn't. The manpage
> shows that acodec supports:
> 
>      acodec=<value>
>      Audio codec (default: mp2):
>      mp2
>      MPEG Layer 2
>      mp3
>      MPEG Layer 3
>      ac3
>      AC3
>      adpcm_ima_wav
>      IMA Adaptive PCM (4bits per sample, 4:1 compression)
> 
> 
> So I tried the option "-oac lavc -lavcopts acodec=mp3" and I get this error:
> 
> "Audio LAVC, couldn't find encoder for codec mp3"
> 
> So what am I missing?

The audio-bit-rate/audio-sample-rate combination of your input
sample is not supported by libavcodec.
If you add, for example, -srate 44100 -lavcopts acodec=mp3:abitrate=128
it will work.

> 
> Also, does mencoder have the option for encoding audio with AAC?

No.

Giacomo




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