On Thursday 16 October 2008 21:04:03 Levente Novák wrote:
> On Thu, 2008-10-16 at 17:41 +0200, Hans Verkuil wrote:
> > On Thursday 16 October 2008 11:09:28 Alexander Pipelka wrote:
> > > Hi,
> > >
> > > I want to capture video streams without any B-Frames
> > > in it from a YUAN MPC622 card (ivtv driver).
> > >
> > > For this I set video_b_frames to 0:
> > >
> > > v4l2-ctl -c video_b_frames=0
> > >
> > >
> > > After that I won't get any output from /dev/video0.
> > >
> > > I know this worked with the drivers version 0.7.4.
> > >
> > > Is this a known issue ?
> >
> > Works fine for me with ivtv from the v4l-dvb repository (ivtv
> > 1.4.0).
> >
> > I think it should work fine as well for ivtv 1.1.0 as I don't
> > remember any changes in this area since that 1.1.0 version. But to
> > verify that you could upgrade to either the 2.6.27 kernel or use
> > the v4l-dvb repository.
>
> I can confirm what Alexander said:
>
> v4l2-ctl -c video_b_frames=0 (no stream saved, although nothing
> appears in the syslog which would
> indicate a problem)
>
>
> v4l2-ctl -c video_b_frames=1 (the stream is saved OK)
>
> All of this with the latest kernel (2.6.27) and a Hauppauge WinTV
> PVR-150 MCE (the version without radio tuner but with a MCE remote
> control).
>
> Levente
>
> PS: BTW it didn't work with ivtv 1.1.0 as well (or was this 0.10.x,
> it happened about half a year ago).
Weird, it is working fine on my PVR-350. PVR-150 vs PVR-350 shouldn't
make any difference.
I'm testing with 'mplayer /dev/video0'. Tested with PAL and NTSC and
using the v4l-dvb repository.
Can other people also test this and report back if it works or not?
Regards,
Hans
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