[FFmpeg-trac] #9901(undetermined:new): Bug: ffmpeg/ffprobe calls field different from it's header.

[FFmpeg]

#9901: Bug: ffmpeg/ffprobe calls field different from it's header.
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             Reporter:  NY2Da        |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  METADATA     |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by mkver):

 FFmpeg (the project) aspires to be a generic tool and therefore normalizes
 certain common tag names like "comment". For VorbisComment metadata, the
 tag that gets mapped to comment in DESCRIPTION (this is defined in
 ff_vorbiscomment_metadata_conv in libavformat/vorbiscomment.c). Therefore
 the muxer converts a comment tag to DESCRIPTION and the demuxer converts a
 DESCRIPTION to a comment. ffprobe uses said demuxer, so it reports
 comment. So I fail to see the bug here. After all, your -metadata
 'comment=this is a comment' has been preserved.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9901#comment:4>
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