[mythtv-users] DVB subtitles comments

[Tomi Makinen]

Hey,

Just installed svn version of mythtv and I am eager to try out subtitles.
When I go to
playback and select menu->subtitles->Finnish, mythtv just Subtitle track 1,
no text shows
up . What could be wrong here ?

Someone mentioned about enabling them. Do I need to do something else to
display the text ?

I did not find anyt keyboard command for that from mythtv.org

- Tomi -

On 12/26/05, Paul Harrison <mythtv at dsl.pipex.com> wrote:
>
> ----- Original Message -----
> From: "Kim Wall" <kim at ductilebiscuit.net>
> To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> Sent: Saturday, December 24, 2005 10:03 PM
> Subject: Re: [mythtv-users] DVB subtitles comments
>
>
> > Piers Kittel wrote:
> > > subtitles on E4 (and I imagine, on other channels)
> > > hasn't been fixed.  Or do I need to do something on my own end?
> >
> > > http://www.biased.org/misc/mythtv/P1010088.JPG
> > > http://www.biased.org/misc/mythtv/P1010089.JPG
> >
> > I'm pretty sure that this is a result of the channel in question being
> > transmitted at a lower-than-usual resolution (E4, More4 and the minor
> > ITV channels spring to mind) to cram ever more into the available
> > bandwidth.  I assume the subtitles are transmitted with absolute pixel
> > offsets to specify their position, based on a full PAL image (presumably
> > this makes life easier for STBs).
> >
> > I suspect the blue bar is another symptom of the same thing - my
> > freeview STB likes to make green ones on More4 occasionally, and the
> > 'correct' fix is a bit of overscan.
> >
> >
> > Kim.
>
> The current DVB subtitle code makes no attempt to scale the subtitle
> images
> which are scaled and positioned to be correct at a video size of 720x576.
> Some channels like E4 typically use a video resolution of 544x576 so
> when  the
> subtitle images are passed to the OSD for display the wrong position and
> image
> size is given for the video resolution being used.
>
> Could you try the attached patch and report back.
>
> I'd be interested to know if DVB in NTSC land uses subtitles and if so are
> you seeing
> similar problems with the subtitles displaying in the wrong position or
> partly of the screen.
>
> Thanks, Paul
>
>
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>
>
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