[mythtv] [mythtv-users] Removing support for CEA-608 teletext subtitles

Stuart Morgan stuart at tase.co.uk
Sat Jul 27 17:33:12 UTC 2013

On Saturday 27 Jul 2013 17:48:27 Ken Smith wrote:
> Jim Stichnoth wrote:
> > We are planning to remove MythTV support for CEA-608 based teletext
> > captions/subtitles, as of the 0.27 release.  That is to say, 0.26 will
> > be the last release with CEA-608 teletext support.
> > 
> > Note that this has nothing to do with DVB teletext that is commonly
> > used in Europe.  It also has nothing (or at least little) to do with
> > VBI-based CEA-608 closed captions which are provided by U.S.
> > broadcasters and set-top box analog output.
> > 
> > The main reason for removal is that there doesn't seem to be any
> > content currently produced with such subtitles, and hasn't been for a
> > very long time, and so the code to maintain decoding and rendering
> > support is all guesswork that complicates the rest of the code.
> > 
> > If anyone has samples containing CEA-608 teletext captions, or has
> > other concerns about this decision, please let me know.
> > 
> > Jim
> Hi Jim/lists
> I have a number of recordings made prior to the demise of Teletext in
> the UK who's subtitles it would be good to be able to show. I don't know
> about practice elsewhere, but, in the UK, Teletext page 888 was used to
> carry the subtitles. Would it be possible to retain the playback capability?

As Jim said, CEA-608 subtitles have nothing to do with Teletext and no-one is proposing the 
removal of Teletext support.
Stuart Morgan
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