[mythtv-users] Transcoding and DVB Closed Captioning

[Paul Harrison]

Niels Dybdahl wrote:
> On 5/23/06, *Robin Neatherway* <robthebob at gmail.com 
> <mailto:robthebob at gmail.com>> wrote:
>
>     > I am thinking about solutions like:
>     > - "Burning" the subtitles into the video before transcoding
>     > - Splitting the DVB-subtitles (ProjectX?) from the video before
>     transcoding
>     > and somehow merging them afterwards. But maybe the .NUV format
>     does not
>     > support closed captioning subtitles. Could the user jobs be used
>     for this?
>
>     I have been playing around with this and it seems that ProjectX is the
>     only tool capable of performing this extraction. It's a shame,
>     because
>     it's really clunky, but I can't find any other way. Once the .sup file
>     has been output, I am then unable to actually do anything with it -
>     can't find the tools for that either.
>
>
> So I guess that the closed captioning are lost with MythBurn too, as 
> MythBurn first demultiplexes and remultiplexes the recording. I wonder 
> if MythArchive will do it better.
> A tool that could "burn" the subtitles into the video would solve the 
> problems.
>
> Niels Dybdahl
>
Have you had a look at spumux which is part of dvdauthor? It can create 
the subtitle stream needed when creating a DVD. It can use both text 
based subtitles as well as image based. I'd love to add subtitle support 
to MythArchive but there is quite a lot of work involved in getting that 
to work and isn't something I need myself so isn't a high priority. If 
someone wants to take a look I may be able to provide some assistance. 
The difficult bit is getting the subtitles into a form that can be used 
by spumux.

http://dvdauthor.sourceforge.net/doc/spumux.html

Paul H.