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

FFmpeg trac at avcodec.org
Wed Nov 28 16:17:34 EET 2018


#7577: FFmpeg can't decode DCP SMPTE Timed Text subtitles within MXF
-------------------------------------+-------------------------------------
             Reporter:  kieranjol    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 ffmpeg can't decode time text subtitles as found in DCP/MXF.
 I'm am hoping to attach a file to this ticket, but if that fails, the subs
 mxf will be within this zipfile - https://www.charbon-studio.com/get/dcps
 /CHARBON-SMPTE-24.zip
 How to reproduce:
 {{{
 ./ffmpeg -i CHARBON-SMPTE-24/sub1_24.mxf
 ffmpeg version N-92540-g28c96c2ce2 Copyright (c) 2000-2018 the FFmpeg
 developers
   built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
   configuration:
   libavutil      56. 24.101 / 56. 24.101
   libavcodec     58. 40.100 / 58. 40.100
   libavformat    58. 23.100 / 58. 23.100
   libavdevice    58.  6.100 / 58.  6.100
   libavfilter     7. 46.100 /  7. 46.100
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
 [mxf @ 0x7f931a000000] "OPAtom" with 2 ECs - assuming OP1a
 [mxf @ 0x7f931a000000] no essence
 CHARBON-SMPTE-24/sub1_24.mxf: Invalid data found when processing input
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/7577>
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