On Tue, Jan 26, 2010 at 12:21:01PM -0600, Roger Heflin wrote:
> Eric Cooper wrote:
> > My recent MythTV recordings are unwatchable on my mvpmc box due to
> > audio stuttering. [...]
>
> There are 2 possible problems.
>
> Either the bit rate is too high, and that is causing issues, or the
> audio is AC3 and not mp2, the AC3 audio is less well supported and I
> have never quite had it work right. [...]
>
> I transcode my digital streams down to normal stuff that the mvpmc
> will work with, this is done via a user job in mythtv, and takes about
> 1/2 of the runtime on a 7750 Athlon for 1080i hd -> 480p conversion.
As Roger suggested, the problem was indeed AC3 audio in the recordings
from my pcHDTV tuner.
The following seems to work well so far. I'm just running it as a
cron job, since I haven't figured out how to use MythTV's transcoding
features.
ffmpeg -alang eng -i inputfile.mpg -f mpegts \
-vcodec copy -scodec copy -acodec mp2 outputfile.mpg
--
Eric Cooper e c c @ c m u . e d u
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