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

FFmpeg trac at avcodec.org
Sun Oct 27 03:34:05 EET 2019

#8338: can't copy GoPro metadata
             Reporter:  importon     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  metadata,    |               Blocked By:
  gopro                              |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
 Summary of the bug: I'm trying to swap out the video track of a GoPro mp4
 file (0.mp4) with another (1.mp4) while keeping all the GPMF metadata in
 the 1st GoPro file.  It results in error message "[mp4 @ 000002a357fdef40]
 Could not find tag for codec none in stream #2, codec not currently
 supported in container Could not write header for output file #0
 (incorrect codec parameters ?): Invalid argument Stream mapping: Stream
 #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Stream #0:2 -> #0:2 (copy)
 Stream #0:3 -> #0:3 (copy) Stream #0:4 -> #0:4 (copy)"
 How to reproduce:
 ffmpeg -i 0.MP4 -i 1.mp4 -map_metadata 0 -map 0 -movflags
 use_metadata_tags -c copy -copy_unknown GHO10772mux.MP4
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

Ticket URL: <https://trac.ffmpeg.org/ticket/8338>
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