Unable to extract GPS metadata from a Garmin mp4 video

[lmsh1]

Hello,

I used the following command to extract the GPS metadata from my Garmin DriveAssist 51 video.

exiftool -p gpx.fmt -ee travel_lapse_1.mp4 > out.gpx

Sadly the output is kind of empty:

Code Select Expand

<?xml version="1.0" encoding="utf-8"?>
<gpx version="1.0"
 creator="ExifTool 12.45"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns="http://www.topografix.com/GPX/1/0"
 xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd">
<trk>
<number>1</number>
<trkseg>
</trkseg>
</trk>
</gpx>


As sugested I uploaded a short sample video to my googledrive.

Thank you in advance!

[Phil Harvey]

Thanks for the sample.

ExifTool 12.46 will be able to extract this GPS.  (Thanks makes 60 different formats now.)

- Phil

[Phil Harvey]

I was just looking at a Garmin DriveAssist 50 MP4 file.  It is stupid, but the DriveAssist 50 stores GPS in an entirely different format from the DriveAssist 51.  You would think it could save some effort if they used the same format.

The whole streaming GPS metadata thing is a real fiasco.

- Phil