[mythtv-users] HDTV mpeg2 ts stream issue with external AC3 decoding

John P Poet jppoet at gmail.com
Wed Apr 1 20:06:11 UTC 2009


On Wed, Apr 1, 2009 at 2:02 PM, Paul Sands <usg990a at cebridge.net> wrote:
> I am have been recording HDTV streams from my cable STB via firewire for
> months now and happily playing them back on my HD frontend. I recently
> added an A/V receiver to my setup. Audio (2ch and 5.1) output through
> spdif is working great for DVDs and MKV files with AC3 audio. When I
> play a HDTV recording with AC3 audio from myth with the internal player (audio decoded
> by the external receiver) I get all kinds of stuttering of the video and
> audio.
>
> I think this is due to the ts stream captured since ts streams are
> notorious for containing errors. Mplayer also stutters on playback of
> the same file when using "-ao alsa:device=spdif hwac3". My question is
> how do I clean it up within myth to be able to play it back smoothly
> with AC3 audio? What would be the best way (through myth or a script as
> a user job) to fix this issue and keep the AC3 audio?
>
> MythTV version: 0.21-r19961
> Intel E5200
> ECS G31T-M (GMA 3100)
> 2GB Ram
> Gentoo

Probably not your whole problem, but make sure you are NOT using video
as the timebase.  You must use audio as the timebase.


John
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