[ivtv-users] Knoppmyth R5F27 PVR350 Closed Captions Recording Incorrectrly

Hans Verkuil hverkuil at xs4all.nl
Fri Oct 12 16:12:04 CEST 2007


On Friday 12 October 2007 16:07:42 Joe Niffen wrote:
> Hans Verkuil wrote:
> > On Friday 12 October 2007 14:44:44 Joe Niffen wrote:
> >> I am using a Hauppauge PVR 350s card for recording and for viewing
> >> on my TV.
> >>
> >> Now the tuner is not decoding closed captions correctly.
> >>
> >> Either from viewing live TV, or watching a recording from this
> >> version the CC is close but some sentences are run together,
> >> letters missing etc.  There are not funny characters, just skipped
> >> letters in words or words running together.  If I watch a
> >> recording done on Knoppmyth R5F1 it is flawless.  I had to go to
> >> R5F27 due to the Zap2it dropping the scheduling  service.  I tried
> >> to update the scheduling portion of R5F1 but I could get it to
> >> work.
> >>
> >> I have changed the settings in KM to use the 350 out on the TV and
> >> to not use the 350 out. Also, changed the xorg.conf file to
> >> display KM on my computer monitor, but the CC are still slightly
> >> incorrect. Again the closed captions are good on the previous
> >> recordings but not on the new ones from F27.
> >>
> >> Are there files I can edit so this is working correctly again?  I
> >> forgot how to determine which version of ivtv is being used, could
> >> I get that command as well?
> >>
> >> Thanks very much.
> >
> > There have been reports about garbled CC recordings. I'll look into
> > that this weekend. I also know that ivtv-1.0.0 and up contain bugs
> > in outputting CC over the card's TV-out. These are fixed in the
> > latest v4l-dvb repository at www.linuxtv.org/hg (and these fixes
> > will appear in 2.6.24).
> >
> > If you playback a known good recording, is the CC output correct in
> > that case? So it only happens with new recordings?
> >
> > Regards,
> >
> > 	Hans
>
> Yes, recording from the present version is slightly garbled.  Also
> the viewing live TV is garbles as well.  In ether case, no funny
> characters just missing letters or spaces.
>
> Playing back of recording from Knoppmyth R5F1, the previous version,
> everything looked great.  I just had to put the options = osd ... in
> my /etc/mythtv/modules/ivtv file.
>
> What is the command to determine which version of ivtv?v4l2-

v4l2-ctl --info

And I also need the kernel version: uname -a

> Is it easy to back level the driver?

That depends on the kernel and ivtv versions, but probably not.

> I'm sure I just can't replace it with the  former.  That would be too
> easy. :)
>
> Thanks for the reply, and thank you for all of your effort in the
> project.

Thanks,

	Hans



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