On Tuesday 23 August 2005 10:03, Jose Alberto Reguero wrote:
> El Lunes, 22 de Agosto de 2005 23:52, Hans Verkuil escribió:
> > On Monday 22 August 2005 23:43, Jose Alberto Reguero wrote:
> > > El Lunes, 22 de Agosto de 2005 23:08, Hans Verkuil escribió:
> > > > On Monday 22 August 2005 23:02, Jose Alberto Reguero wrote:
> > > > > I have a lot of messages with a PVR 350 PAL vbi and a amd64:
> > > > >
> > > > > Aug 22 23:00:47 jar kernel: ivtv warning: ENC Stream 2 OVERFLOW #0:
> > > > > Stealing a Buffer, 641 currently allocated
> > > >
> > > > A bit more info would be nice :-) What program are you using, is it
> > > > reproducable? What are you doing when these messages appear?
> > > >
> > > > Hans
> > >
> > > I am using vdr with pvrinput plugin and osdteletext plugin. It read
> > > sliced teletext from analog channels from /dev/vbi0 simultaneously with
> > > the captured
> >
> > 'sliced teletext': do you mean that it uses the ivtv-specific ioctls to
> > capture sliced VBI, or is it the general method of reading raw VBI data
> > and then slicing it by software?
> >
> struct ivtv_sliced_vbi_format fmt;
> if (fmt.service_set = IVTV_SLICED_TELETEXT_B;
>
> ioctl(vbi_fd, IVTV_IOC_S_VBI_MODE, &fmt)
>
> vbi_buffer = new unsigned char[fmt.io_size];
> r = read(vbi_fd, buffer, fmt.io_size);
>
> ¿There are ivtv-specific ioctls to capture sliced VBI?
>
> > > video from /dev/video0
> > > It happen always after a while and not stop until I close vdr(close de
> > > device).
> > > When switching channels, it show teletext of previous channels.
> > > It work well with the 0.2 drivers.
> >
> > Can you test with 0.3.7g? I've made changes to h that may have caused
> > problems. If it works with g, but not with h then I have to see what
> > broke.
> >
> With 0.3.7g is the same:
>
> Aug 23 09:52:41 jar kernel: ivtv warning: ENC Stream 2 OVERFLOW #0: Stealing
> a
> Buffer, 1317 currently allocated
> Aug 23 09:52:41 jar kernel: ivtv warning: ENC Stream 2 OVERFLOW #1: Stealing
> a
> Buffer, 1317 currently allocated
> Aug 23 09:52:41 jar kernel: ivtv warning: ENC Stream 2 OVERFLOW #0: Stealing
> a
Looks very much as if the program is not reading the VBI data (or perhaps not
fast enough). So the driver runs out of buffers and starts doing this. I can
reproduce it by simply not reading. After a while I get these messages.
Hans
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