[mythtv-users] Re: LiveTV works great, recordings are jerky

[Helgegrimm]

Thanks for the tip, but it didn't help. It's really strange. I can set 
the LiveTV settings to MPEG2 with 9000kbits/second and I have no 
problems. Everything is smooth. But the recordings even stutter if I 
select only 1000kbit/s. About one "prebuffering pause" every second. 
When I choose another value like 3000 or 9000kbits/s I also get one 
"prebuffering pause" every second. So this seems to be totally 
unrelated to the recording profile.

> Check your settings.  LiveTV uses a different recording profile from
> default recordings.  Perhaps you want to make the "default" profile
> match the settings in the "livetv" (if you don't mind the extra HD
> space)  Fiddle with it  - I wasn't happy with my settings for 3 days
> after installing, and I think I changed it every hour... lol
>> I have a strange problem with my mythtv installation. LiveTV works
>> great - everything is perfectly smooth, but when I try to play back
>> recordings it starts skipping immediately ("prebuffering pause" every
>> second). The recorded files are ok, mplayer plays them flawlessly. My
>> configuration:
>>
>> VIA M10000N/C3-2/512MB RAM
>> WinTV PVR-250
>> 2.4.24 kernel
>> Myth 0.14 compiled with ALSA support
>> 120GB Samsung IDE, 5400 RPM, transfer rate of > 50MB/s (ReiserFS, DMA
>> on).
>>
>> I use the CLE266 Hardware MPEG decoder and my CPU usage is always < 
>> 30%
>> while watching LiveTV or recordings (checked with top via ssh)
>> My mythconverge database seems to be ok (mysqlcheck reports no 
>> problems)
>> I have tried using the "extra audio buffering" and "jitter reduction"
>> options - they don't help.
>> Xv is running (24 bit depth)
>> nice -10 mythfrontend didn't help either.
>>
>> Again, LiveTV works perfectly (not one single "prebuffering pause"),
>> although the computer records and plays at the same time. Playback of
>> any recording is extremely choppy.
>>
>> Any ideas? Thanks in advance,
>>
>> Helge
>>
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