[ATrpms-users] Why can't ffmpeg find ac3 decoder?
Jeffrey J. Kosowsky
atrpms at kosowsky.org
Mon Jun 23 18:23:29 CEST 2008
Axel Thimm wrote at about 18:19:53 +0300 on Monday, June 23, 2008:
> On Mon, Jun 23, 2008 at 10:14:48AM -0400, Jeffrey J. Kosowsky wrote:
> > When I try: ffmpeg -acodec ac3 -i <mpeg input mpeg2 video> out.mpg
> > I get the error message:
> > Unknown decoder 'ac3'
> > This happens even though:
> > ffmpeg -formats | grep ac3
> > DE ac3 raw ac3
> > EA ac3
> I think the latter means that only the encoder is present.
> > And I have:
> > ffmpeg-0.4.9-26_r12135.fc8
> > liba52_0-0.7.4-7.0.1.fc8
> > I even tried creating a link (in /usr/lib)
> > ln -s liba52.so.0 liba52.so
> > but still got the error...
> > Why is ffmpeg not able to convert to ac3.
> Axel.Thimm at ATrpms.net
Never mind -- my mistake -- the problem is with the order of the
options. I wanted to *encode* in ac3 so I needed to put that after the
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