[FFmpeg-trac] #8338(avformat:new): can't copy GoPro metadata

[FFmpeg]

#8338: can't copy GoPro metadata
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             Reporter:  importon     |                    Owner:  (none)
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mov          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Leseratte10):

 I tested the latest version of FFmpeg and this issue still occurs, ffmpeg
 refuses to copy the GPMD metadata stream with the same error message
 "Could not find tag for codec none in stream #2, codec not currently
 supported in container" when working with MP4 files.

 I can copy such a GoPro stream to other file formats (TS or MOV, for
 example) just fine, but that doesn't help me if I need to edit the
 original MP4 files coming from a GoPro camera.

 I have also not found any other MP4 editing tool that can work with these
 files - but I can't imagine just having write support for that raw binary
 type could be that hard. FFmpeg already properly detects it and can
 extract it from a video, it just can't add it back to a video.

 Is there any chance of FFmpeg getting support for writing GoPro metadata
 to an MP4 file?

 Also, I'd agree with the statement in comment 10 that this should be a
 bug, not a feature request.
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Ticket URL: <https://trac.ffmpeg.org/ticket/8338#comment:13>
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