OpenELEC/OpenELEC.tv — pull request #912 by lunds (2012-07-07 18:22:33+00:00)
Title: Fix playback of DVB subtitles from tvheadend recordings

This makes it possible to use the DVB subtitle tracks written by e.g. tvheadend
(essentially, this is the one-line patch referred to in http://lists.matroska.org/pipermail/matroska-devel/2011-February/003983.html)

Note: Until ffmpeg, tvheadend et.al. get around to implementing S_DVBSUB in MKV according to the agreed method (see http://lists.matroska.org/pipermail/matroska-devel/2011-February/003978.html), this oneliner will allow tvheadend users to view the DVB subtitles in their mkv-recordings.