[mythtv] OSD menu: DVB subtitles and Teletext p888

[Nick Morrott]

Whilst testing trunk earlier and completing some outstanding
translations, I noticed that when choosing to enable subtitles on a
DVB-S (Freesat, UK) source from the new-style OSD menu, I see two
options:

i) Select Subtitle
ii) Select Teletext CC

The first option provides the "regular" DVB subtitles which work. The
second option tries to load p888 on digital teletext which fails. Is
it possible to determine whether Teletext subtitles are available
before offering them as a choice on the menu?

The relevant bits of mythtv/libs/libmythtv/tv_play.cpp which the
translations highlighted include:

10240         if (!av_tracks.empty())
10241             av_curtrack = (uint)
ctx->player->GetTrack(kTrackTypeSubtitle);
...
10246         if (!ttx_tracks.empty())
10247             ttx_curtrack = (uint)
ctx->player->GetTrack(kTrackTypeTeletextCaptions);

Cheers,
Nick

-- 
Nick Morrott

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