[FFmpeg-trac] #4209(avformat:open): GPS coordinates location and other iOS metadata in MOV are not copied to output MP4

[FFmpeg]

#4209: GPS coordinates location and other iOS metadata in MOV are not copied to
output MP4
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             Reporter:  elmimmo     |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mov         |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Comment (by genuinefafa):

 Replying to [comment:15 Gyan]:
 > Adding `-movflags use_metadata_tags` will allow you to add and carry
 over custom metadata. ff* tools, at least, will show these tags in the
 output.

 I just tested
 `%ffmpeg% -benchmark -i %input% -movflags use_metadata_tags  -map_metadata
 0:g -c:v libx264 -crf %video-encode% -c:a aac %output% `

 it did not copy
 ```
 com.apple.quicktime.location.I : +40.6195-074.1643+005.201/
 com.apple.quicktime.make       : Apple
 com.apple.quicktime.model      : iPhone 7
 com.apple.quicktime.software   : 12.1.1
 com.apple.quicktime.creationda : 2018-11-21T16:47:56-0500

 ```

 into output.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4209#comment:16>
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