[mythtv-users] Transcoders and closed captions

Jim Stichnoth stichnot at gmail.com
Tue Oct 7 21:38:55 UTC 2008


On Tue, Oct 7, 2008 at 12:11 AM, Andreas <linuxdreas at dslextreme.com> wrote:

> > Normally,
> > MythTV's cc support seems great, but there are some problems with
> > transcoding.  When I do a lossless mpeg-2 transcode (for permanently
> > removing commercials), the captions are lost completely.
>
> I have found that cc's in recordings from ATSC sources (or QAM) actually
> survive MythTV's lossless transcoding. Sadly, the same can not be said for
> recordings I made from analogue sources with my ivtv-cards.


Interesting -- I've only been trying this with programs recorded from a
PVR-150.  I will check this out on the HDHR.


> > When I transcode
> > from mpeg-2 to mpeg-4 with a cutlist, the captions are preserved but
> > delayed during playback, presumably because the cutlist is not being
> > applied to the captions.
>
> There is a great little program out there, ccextractor, which can save
> closed
> captions to a srt file.


Cool, thanks for the pointer.

Jim
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