[FFmpeg-trac] #7577(avformat:new): FFmpeg can't decode DCP SMPTE Timed Text subtitles within MXF

[FFmpeg]

#7577: FFmpeg can't decode DCP SMPTE Timed Text subtitles within MXF
------------------------------------+------------------------------------
             Reporter:  kieranjol   |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mxf         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+------------------------------------

Comment (by Tjoppen):

 mxfdump says there are some ULs in this file that it doesn't know about,
 but smpte-ra.org does:

 * 060e2b34.0253.0101.0d010101.01016400 DCTimedTextDescriptor
 * 060e2b34.0253.0101.0d010101.01016500 DCTimedTextResourceSubDescriptor
 * 060e2b34.0205.0101.0d010201.01031100 GenericStreamPartition

 The latest DCP spec is freely available, but I don't have S429-5 (SMPTE
 429-5 D-Cinema Packaging - Timed Text Track File) in my archives, which
 DCI claims is what defines these KLVs. Telling mxfdump to attempt to parse
 dark metadata yields some more clues, and a copy of S429-5 can probably be
 found if I dig some more

 Is getting at the XML inside enough, or do you also need it
 decoded/transcoded to some other subtitle format?

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7577#comment:3>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker