[FFmpeg-trac] #7127(avformat:open): FFmpeg does not display multi language chapter titles

[FFmpeg]

#7127: FFmpeg does not display multi language chapter titles
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             Reporter:  MelkorLord   |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mkv          |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
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Comment (by MelkorLord):

 Hi,

 I thought to do so at first but {{{ffprobe}}} is the tool I was using when
 I found the issue. Besides, {{{ffmpeg}}} info is quite scarce compared to
 {{{ffprobe}}} and produces an error message (expected of course since we
 don't provide enough arguments). That's the reason why I was reporting
 against {{{ffprobe}}} even though I'm convinced the issue lies in the MKV
 parser of {{{ffmpeg}}} lib.

 {{{
 % ffmpeg -hide_banner -i ffmpeg_sample.mkv
 Input #0, matroska,webm, from 'ffmpeg_sample.mkv':
   Metadata:
     encoder         : libebml v1.3.4 + libmatroska v1.4.5
     creation_time   : 2018-04-11T07:13:50.000000Z
   Duration: 00:00:30.00, start: 0.000000, bitrate: 12 kb/s
     Chapter #0:0: start 0.000000, end 15.000000
     Metadata:
       title           : Chapitre UN
     Chapter #0:1: start 15.000000, end 30.000000
     Metadata:
       title           : No lang chapter
     Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x720 [SAR
 1:1 DAR 16:9], 25 fps, 25 tbr, 1k tbn, 50 tbc
 At least one output file must be specified
 }}}

 But OK, next time, I'll report directly against {{{ffmpeg}}} if it's your
 wish.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7127#comment:7>
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