On Wed, 2007-01-24 at 23:22 +0100, Roger Depreeuw wrote: > On Wed, 2007-01-24 at 20:49 +0100, Hans Verkuil wrote: > > 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? > > > Right it slowly increases. After roughly 90 min it is at 80% Sorry, but my previous mail is misleading (newbie errors) The 80% in use is with mplayer running (-nocache). Using Mplayer -cache 8191 it drops to 0%. With MythTV it is also at 0%
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