[mythtv-users] does closed captioning work?
Joseph A. Caputo
jcaputo1 at comcast.net
Fri Jan 16 13:54:14 EST 2004
On Friday 16 January 2004 13:46, Jarod C. Wilson wrote:
> On Fri, 16 Jan 2004 13:08:22 -0500
> "Joseph A. Caputo" <jcaputo1 at comcast.net> wrote:
> > On Friday 16 January 2004 12:05, David jeske wrote:
> > > Alright, I have my hauppauge IR remote working now. I'm knocking
> > > off the remaining stuff one by one. My next challenge is getting
> > > closed captioning working.
> > >
> > > I've found various indications that closed captioning worked as
> > > early as version 0.9. I see the key to turn it on in keys.txt.
> > > However, when I press "T" nothing happens. I would expect to get
> > > a "captioning on" message, even if the program has no caption
> > > support. I'm using the apt-get 0.13 version per the Redhat 9
> > > instructions.
> > >
> > > I didn't see anything in the faq. Searches turned up just a few
> > > really old messages talking about ivtv adding capture support,
> > > and someone "busy adding capture support" to myth one year ago
> > > yesterday.
> > >
> > > Do I need to do something special? I think all my data is still
> > > rtjpeg, but does the closed caption data get preserved when
> > > mythtranscoding to mpeg4?
> > >
> > > - David
> > AFAIK, Myth doesn't support getting Teletext/Closed Captions from
> > cards using the ivtv driver (i.e., hardware MPEG encoder-based). I
> > believe the ivtv driver *may* be able to support it in the future,
> > but I also believe Myth might need its VBI code reworked to support
> > it if it does.
> Preliminary support for vbi is just now getting into the ivtv driver.
> There's no way to get anything out of it with MythTV yet, because the
> vbi support isn't finished yet. Once support is there, I believe
> using vbi with ivtv cards shouldn't be any different than with bttv
> cards, as /dev/vbi is a v4l standard, which the ivtv driver's vbi is
> aspiring to comply with.
I suspected as much. That's good news, since I have those two M-179's
just waiting for a new machine to go into.
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