[mythtv-users] rebuffering after livetv channel change

[Stefan Haflidason]

On 3/23/06, Jesse Guardiani <jesse at wingnet.net> wrote:
>
> Hello,
>
> This isn't the same as the prebuffering pause issue with XvMC/HD.
> I'm just running SD TV and no XvMC.
>
> I just switched from using the Svid input of my PVR 350 card from
> a Dish feed to using the RF tuner input with a Charter Cable feed.
>
> It's crazy how fast the tuner changes channels compared to the
> Dish connection + IR Blaster channel change script. It's a full
> second or two faster. However, that speed seems to have come
> with a penalty. When I change channels on the tuner input in LiveTV,
> I instantly start getting rebuffering errors in my frontend's stdout/
> stderr output and the video playback gets choppy. (it's a combined
> front/backend box, so network isn't an issue.) If I pause the playback
> for about 3 seconds then play again, the rebuffering errors go away.
>
> I assume this is because LiveTV is somehow butting up against the
> MPEG video output speed of the PVR350. Pausing gives it enough buffer
> to work with.
>
> Is there any way to force a 3 second playback pause after a channel
> change on a tuner input?
>
> I'm running 0.19 SVN (fixes) revision 9263 and ivtv SVN revision 3060.
>
>
> --
> Jesse Guardiani
> Programmer/Sys Admin
> jesse at wingnet.net
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> mythtv-users at mythtv.org
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>

The thread that made me (in the same situation as you) breathe a sigh of
relief: http://www.gossamer-threads.com/lists/mythtv/users/186011

Stefan.
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