[mythtv-users] Stuttering/slow playback with mpeg 4 (Solved)

[Douglas Phillipson]

Douglas Phillipson wrote:
> Jared Mason wrote:
> 
>> I'm running mythtv .12 installed using Jarod's guide.  It is running 
>> on an
>> AMD 2000+ and 512 DDR system.  I have a Prolink Pixelview Pro doing the
>> captures.  Everything is working great except that I recently switched
>> from RTJpeg to Mpeg4.  Unfortunately, now after about 10 minutes of
>> watching a recording the playback starts to stutter and slow down.  If I
>> just exit the playback and start it again (at the same place) the 
>> slowness
>> goes away for a few minutes.  So the file itself seems to be fine.
>>
>> I still have some of the old recordings made with RTJpeg and they don't
>> have any problems.  Those files are all about 11 GBs for a two hour show
>> where as the Mpeg4 recordings are about 2.3 for a two hour show.  Over 
>> the
>> last few days I've been slowing increasing the bit rate of my Mpeg4
>> recording thinking that maybe the file size/quality has something to do
>> with it but I'm running out of ideas.  My latest test was Mpeg4 640 X 480
>> at 4000 bit rate.  But it still slowed down after a few minutes of play.
>> Any suggestions?
>>
>> Jared
>>
> I'm having exactly the same problem.  I'm using a Wintv go card. Athlon 
> 2200+ on a KM266 chipset, VIA 8233 audio, using MythTv 0.12.
> 
> On another subject, I also tried to get btautio module loaded but when 
> running make it says:
> 
> "The present kernel configuration has modules disabled.
> Type 'make config' and enable loadable module support.
> Then build a kernel with module support enabled."
> 
> I know this isn't the case thouth because I load the alsa module, so I 
> don't know what the "makefile" for btaudio is basing it's conclusion on.
> 
> 
> Any help is greatly appreciated.
> 
> 
> Doug P
> 
> 
> 
I installed a SoundBlaster 16 PCI and my problem with audio stuttering 
and video speeding up and slowing down went away, even with OSS drivers. 
  I guess the VIA 8233 chipset just has problems with MythTV...

Problem solved

Thankyou for the support and a great program...

Doug P