[FFmpeg-trac] #5503(avformat:new): AV_DISPOSITION_FORCED not set for mov_text

[FFmpeg]

#5503: AV_DISPOSITION_FORCED not set for mov_text
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:  avformat
                Version:  git-       |               Keywords:  mov
  master                             |  mov_text
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 (videolan ticket 16803)
 A user provided a mov sample that contains forced subtitles, the relevant
 flag does not get set by FFmpeg.
 {{{
 $ ffmpeg -i example.mp4
 ffmpeg version N-79716-g0ff3489 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --enable-libwebp --enable-libvpx
   libavutil      55. 23.100 / 55. 23.100
   libavcodec     57. 38.100 / 57. 38.100
   libavformat    57. 35.100 / 57. 35.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 44.100 /  6. 44.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x3977280] Invalid SampleDelta -10000 in STTS,
 at 4 st:2
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'example.mp4':
   Metadata:
     major_brand     : iso4
     minor_version   : 1
     compatible_brands: iso4hvc1iso6
     creation_time   : 2016-04-12 05:37:44
     encoder         : MP4Box-0.6.2-DEV-rev228-x64
   Duration: 1193:04:27.30, start: 0.000000, bitrate: 0 kb/s
     Stream #0:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv),
 1920x1080 [SAR 1:1 DAR 16:9], 4885 kb/s, 25 fps, 25 tbr, 25 tbn (default)
     Metadata:
       creation_time   : 2016-04-12 05:37:44
       handler_name    : H.265 Videospur
     Stream #0:1(deu): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 96 kb/s (default)
     Metadata:
       creation_time   : 2016-03-14 19:22:53
       handler_name    : deutsche Tonspur
     Stream #0:2(deu): Subtitle: mov_text (tx3g / 0x67337874), 1920x128, 0
 kb/s (default)
     Metadata:
       rotate          : 0
       creation_time   : 2016-04-12 05:37:46
       handler_name    : deutscher Untertitel (erzwungen)
 At least one output file must be specified
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/5503>
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