[FFmpeg-trac] #4209(undetermined:new): 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
-------------------------------------+-------------------------------------
             Reporter:  elmimmo      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 Certain metadata in MOV files recorded with iOS devices, such as GPS
 location, is lost when converting to MP4.

 **ffmpeg** does state in its log that the output file will contain such
 metadata, but such is not the case as identified with **ffprobe** and
 **exiftool**.

 Some of the metadata present in the input MOV that is missing in the
 output MP4, according to **ffprobe**:

 - make ("Apple")
 - encoder
 - location (GPS latitude/longitude/altitude coordinates)
 - model (the iPhone/iPad/iPod model)

 **exiftool** identifies some more:

 - camera identifier ("Back" or "Front")
 - Software Version (iOS version)

 This happens irrespective of input video/audio being transcoded or just
 repackaged.

 How to reproduce:
 {{{
 % ffmpeg -i INPUT.mov -map_metadata 0 -c copy OUTPUT.mp4
 ffmpeg version 2.5.2 Copyright (c) 2000-2014 the FFmpeg developers
   built on Dec 26 2014 21:55:58 with Apple LLVM version 4.2
 (clang-425.0.28) (based on LLVM 3.2svn)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/2.5.2 --enable-shared
 --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables
 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-
 libx264 --enable-libmp3lame --enable-libxvid --enable-libvo-aacenc
 --enable-vda
   libavutil      54. 15.100 / 54. 15.100
   libavcodec     56. 13.100 / 56. 13.100
   libavformat    56. 15.102 / 56. 15.102
   libavdevice    56.  3.100 / 56.  3.100
   libavfilter     5.  2.103 /  5.  2.103
   libavresample   2.  1.  0 /  2.  1.  0
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'INPUT.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 0
     compatible_brands: qt
     creation_time   : 2014-12-26 20:54:22
     model           : iPhone 4
     model-spa       : iPhone 4
     encoder         : 7.1.1
     encoder-spa     : 7.1.1
     date            : 2014-12-26T21:54:22+0100
     date-spa        : 2014-12-26T21:54:22+0100
     location        : +41.4082+002.1852+027.119/
     location-spa    : +41.4082+002.1852+027.119/
     make            : Apple
     make-spa        : Apple
   Duration: 00:00:01.07, start: 0.000000, bitrate: 11694 kb/s
     Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661),
 yuv420p(tv, bt709), 1280x720, 11890 kb/s, 24 fps, 24 tbr, 600 tbn, 1200
 tbc (default)
     Metadata:
       rotate          : 90
       creation_time   : 2014-12-26 20:54:22
       handler_name    : Core Media Data Handler
       encoder         : H.264
     Side data:
       displaymatrix: rotation of -90.00 degrees
     Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono,
 fltp, 62 kb/s (default)
     Metadata:
       creation_time   : 2014-12-26 20:54:22
       handler_name    : Core Media Data Handler
 Output #0, mp4, to 'OUTPUT.mp4':
   Metadata:
     major_brand     : qt
     minor_version   : 0
     compatible_brands: qt
     creation_time   : 2014-12-26 20:54:22
     model           : iPhone 4
     model-spa       : iPhone 4
     make-spa        : Apple
     encoder         : Lavf56.15.102
     date            : 2014-12-26T21:54:22+0100
     date-spa        : 2014-12-26T21:54:22+0100
     location        : +41.4082+002.1852+027.119/
     location-spa    : +41.4082+002.1852+027.119/
     make            : Apple
     Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p,
 1280x720, q=2-31, 11890 kb/s, 24 fps, 19200 tbn, 600 tbc (default)
     Metadata:
       rotate          : 90
       creation_time   : 2014-12-26 20:54:22
       handler_name    : Core Media Data Handler
       encoder         : H.264
     Side data:
       displaymatrix: rotation of -90.00 degrees
     Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, mono,
 62 kb/s (default)
     Metadata:
       creation_time   : 2014-12-26 20:54:22
       handler_name    : Core Media Data Handler
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 frame=   25 fps=0.0 q=-1.0 Lsize=    1522kB time=00:00:01.06
 bitrate=11673.4kbits/s
 video:1512kB audio:8kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.123020%
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4209>
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