[digikam] [Bug 369629] digikam does not use GPS data from video files

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=369629

--- Comment #12 from caulier.gilles at gmail.com ---
with Exiftool, no GPS metadata can be extracted :

gilles at localhost Videos]$ exiftool -a -u -g1 20161223T153428.mp4
---- ExifTool ----
ExifTool Version Number         : 10.15
---- System ----
File Name                       : 20161223T153428.mp4
Directory                       : .
File Size                       : 13 MB
File Modification Date/Time     : 2016:12:23 18:54:26+01:00
File Access Date/Time           : 2016:12:23 18:54:26+01:00
File Inode Change Date/Time     : 2016:12:23 18:54:26+01:00
File Permissions                : rw-rw-r--
---- File ----
File Type                       : MP4
File Type Extension             : mp4
MIME Type                       : video/mp4
---- QuickTime ----
Major Brand                     : MP4 v2 [ISO 14496-14]
Minor Version                   : 0.0.0
Compatible Brands               : isom, mp42
Movie Header Version            : 0
Create Date                     : 2016:12:23 17:46:11
Modify Date                     : 2016:12:23 17:46:11
Time Scale                      : 600
Duration                        : 11.17 s
Preferred Rate                  : 1
Preferred Volume                : 100.00%
Matrix Structure                : 1 0 0 0 1 0 0 0 1
Preview Time                    : 0 s
Preview Duration                : 0 s
Poster Time                     : 0 s
Selection Time                  : 0 s
Selection Duration              : 0 s
Current Time                    : 0 s
Next Track ID                   : 3
Initial Object Descriptor       : (Binary data 13 bytes, use -b option to
extract)
Movie Data Size                 : 13137831
Movie Data Offset               : 4890
Movie Data                      : (Binary data 13137831 bytes, use -b option to
extract)
---- Track1 ----
Track Header Version            : 0
Track Create Date               : 0000:00:00 00:00:00
Track Modify Date               : 2016:12:23 17:46:11
Track ID                        : 1
Track Duration                  : 11.03 s
Track Layer                     : 0
Track Volume                    : 0.00%
Matrix Structure                : 1 0 0 0 1 0 0 0 1
Image Width                     : 1920
Image Height                    : 1080
Unknown edts                    : (Binary data 28 bytes, use -b option to
extract)
Media Header Version            : 0
Media Create Date               : 0000:00:00 00:00:00
Media Modify Date               : 2016:12:23 17:46:11
Media Time Scale                : 30
Media Duration                  : 11.03 s
Media Language Code             : und
Handler Type                    : Video Track
Handler Description             : VideoHandler
Graphics Mode                   : srcCopy
Op Color                        : 0 0 0
Compressor ID                   : avc1
Source Image Width              : 1920
Source Image Height             : 1080
X Resolution                    : 72
Y Resolution                    : 72
Bit Depth                       : 24
Unknown avcC                    : (Binary data 45 bytes, use -b option to
extract)
Buffer Size                     : 124798
Max Bitrate                     : 10111712
Average Bitrate                 : 9380128
Video Frame Rate                : 30
Sync Sample Table               : (Binary data 32 bytes, use -b option to
extract)
Sample To Chunk                 : (Binary data 212 bytes, use -b option to
extract)
Sample Sizes                    : (Binary data 1336 bytes, use -b option to
extract)
Chunk Offset                    : (Binary data 100 bytes, use -b option to
extract)
---- Track2 ----
Track Header Version            : 0
Track Create Date               : 2016:12:23 17:46:11
Track Modify Date               : 2016:12:23 17:46:11
Track ID                        : 2
Track Duration                  : 11.17 s
Track Layer                     : 0
Track Volume                    : 100.00%
Matrix Structure                : 1 0 0 0 1 0 0 0 1
Media Header Version            : 0
Media Create Date               : 2016:12:23 17:46:11
Media Modify Date               : 2016:12:23 17:46:11
Media Time Scale                : 44100
Media Duration                  : 11.17 s
Media Language Code             : eng
Handler Type                    : Audio Track
Handler Description             : IsoMedia File Produced by Google, 5-11-2011
Balance                         : 0
Audio Format                    : mp4a
Audio Channels                  : 1
Audio Bits Per Sample           : 16
Audio Sample Rate               : 44100
Unknown esds                    : (Binary data 45 bytes, use -b option to
extract)
Time To Sample Table            : (Binary data 16 bytes, use -b option to
extract)
Sample To Chunk                 : (Binary data 44 bytes, use -b option to
extract)
Sample Sizes                    : (Binary data 1936 bytes, use -b option to
extract)
Chunk Offset                    : (Binary data 100 bytes, use -b option to
extract)
---- Composite ----
Avg Bitrate                     : 9.41 Mbps
Image Size                      : 1920x1080
Megapixels                      : 2.1
Rotation                        : 0

... so i suspect that GPS info are registered somewhere in un-decoded
markernotes.

Nothingh can be done in digiKam side. Exiv2 has all mechanisms to do this job.
Please report as UPSTREAM to Exiv2 as i explain before.

Gilles Caulier

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