On Wednesday 24 January 2007 20:35, Sander Sweers wrote:
> Roger Depreeuw wrote:
> > On Wed, 2007-01-24 at 08:34 -0500, Ian Service wrote:
> >> On 1/24/07, Hans Verkuil <[EMAIL PROTECTED]> wrote:
> >> Just verifying that I understand it correctly: this also
> >> happens with a
> >> non-trunk ivtv release, correct? So it is not some ivtv
> >> trunk bug that is
> >> hiding somehwere.
> >>
> >> Correct, this problem is the same with the trunk as it is with
> >> recent ivtv-0.8
> >>
> >>
> >> With 16 MB of buffers that should give you somewhere
> >> between 10-16 seconds
> >> of buffering I think. I find it hard to believe that
> >> MythTV would take so
> >> much time! You can easily check how full the various
> >> buffers are by
> >> running v4l2-ctl --log-status.
> >>
> >> While watching Live TV:
> >> [EMAIL PROTECTED] ~]# v4l2-ctl --log-status --device=/dev/video1
> >
> > Sorry to interfere in your discussion (i am still in learning mode)
> > Shouldn't you see some traffic in the stream MPEG encoder? When i
> > do the same test i get the following
> > ivtv0: Stream encoder MPEG: 14% in use
> > ivtv0: Stream encoder YUV: 0% in use
> > ivtv0: Stream encoder VBI: 0% in use
> > ivtv0: Stream encoder PCM audio: 0% in use
>
> I almost never see values higher than 0% being used. Only VBI
> sometimes goes up to 2%. Only cat /dev/video33 > /dev/null will show
> a 30% in yuv. However I am not sure how we should read this. Is this
> the buffer?
Yes. 0% is empty, 100% is full and the errors start appearing in the
log. For YUV the buffers are fairly small and the YUV frames are big,
so that shows up as a high percentage. The 14% for MPEG in the log
above indicates either a slow machine or hiccups in reading. How does
it fluctuate over time?
Hans
>
> Greets
> Sander
>
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