[mythtv] bttv recordings run fast

bobnvic at everestkc.net bobnvic at everestkc.net
Sat Mar 6 01:49:05 EST 2004


bobnvic at everestkc.net wrote:
> Joseph A. Caputo wrote:
> > On Friday 05 March 2004 09:58, bobnvic at everestkc.net wrote:
> > > I upgraded to cvs on 3/2/04 from cvs from early March and every
> > > recording on bttv card since then plays very fast.  The recording
> > > starts out playing normally for the first few seconds and then
> > > everything speeds up by a significant amount making it 
> > > impossible to follow.
> > 
> > Are you using btaudio?  <some text snipped>
> > You might also play around with the "use video as timebase" 
> option in Setup->TV->Playback <more text snipped>
> 
> I'm not using btaudio and everything was fine until upgrading cvs,
> so something changed in February to cause it.  <some snippage> 
> I'll try the "use video as timebase" option and see what happens.
> Are there any other ideas?

I figured out the issue.  I had the HQ and MV quality setting set
for the mpeg4 capture and the CPU was pegged while recording.
After turning off the HQ and MV quality settings, the CPU usage
dropped to about 30% and no longer exhibited the issues while
actually looking better than it had previously.  It appears that
the CPU usage may have increased slightly in the current cvs to
push it over the edge.  However the bttv color adjustments make
the picture look far better.  

I have no idea why the high CPU usage would result in the issues
that I saw in playback, but I'm quite happy again with my setup.

I appreciate the suggestions and help that I received and thank
you for your time.

Bob
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