[mythtv-users] Video encoding and ffmpeg

[John Baab]

On Wed, Oct 13, 2010 at 9:16 AM, Justin Bracken <scourched at gmail.com> wrote:
> I went home last night and tried the -ac 2  line and was shot down on
> that. Apparently ffmpeg cannot switch 5.1 to 2.0.
>
> Can some one please point me to a set of up to date instructions on
> how to install ffmpeg. Wondering if I have a bad install. Tried to
> rebuild it last night on 10.04 unbuntu and failed miserably. Even
> though I had downloaded libx264 I was getting an error from make about
> not finding it. It appears all the instructions I found stopped after
> like 9.04. Assume I'm a noob.
>
> I did get the error to repeat last night and as I remebered it was
> generic. It talked about a rate, height or width being wrong when I
> had -vcodec copy -acodec libmp3lame and went away with changing
> libmp3lame to libfaac.
>
> Thanks again for the help.
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You really shouldn't need to build from source, this will most likely
cause you more headaches.  For an iPhone it should be as simple as
enabling medibuntu and changing out libmp3lame for libfaac.  Adding
-ac 2 should work just fine for 5.1 source as well.

You can try the ffmpeg line that is in the latest version of mythexport:
http://bazaar.launchpad.net/~mythbuntu/mythexport/trunk/annotate/head:/usr/share/mythexport/configs/PortableH264HighRes.pm