70mai A810 Dashcam Video GPS

[borism]

Hi there,

I have a sample of video from the 70mai A810 Dashcam and I'm not able to get exiftool to extract GPS data from it. I know other 70mai cameras work, so hoping this one can be enabled as well? Here is the sample (.rar file containing 2 .mp4s):
https://workupload.com/file/NmuG7FRncwL

Thank you so much!

[StarGeek]

Just to verify, these files have not been processed/edited by any software and are directly from the dashcam? Because any editing at all will remove all GPS tracks (and EXIF data).

Neither of these files have any time stamps, which would be very unusual. And they are HEVC, whereas most dashcams save in H.264 as it requires much less processing power.

Code Select Expand

C:\>exiftool -time:all --system:all -G1 -a -s Y:\!temp\x\y\70mai_Cam
======== Y:/!temp/x/y/70mai_Cam/NO20240926-161522-000300F.MP4
[QuickTime]     CreateDate                      : 0000:00:00 00:00:00
[QuickTime]     ModifyDate                      : 0000:00:00 00:00:00
[Track1]        TrackCreateDate                 : 0000:00:00 00:00:00
[Track1]        TrackModifyDate                 : 0000:00:00 00:00:00
[Track1]        MediaCreateDate                 : 0000:00:00 00:00:00
[Track1]        MediaModifyDate                 : 0000:00:00 00:00:00
[Track2]        TrackCreateDate                 : 0000:00:00 00:00:00
[Track2]        TrackModifyDate                 : 0000:00:00 00:00:00
[Track2]        MediaCreateDate                 : 0000:00:00 00:00:00
[Track2]        MediaModifyDate                 : 0000:00:00 00:00:00
======== Y:/!temp/x/y/70mai_Cam/NO20240926-161822-000301F.MP4
[QuickTime]     CreateDate                      : 0000:00:00 00:00:00
[QuickTime]     ModifyDate                      : 0000:00:00 00:00:00
[Track1]        TrackCreateDate                 : 0000:00:00 00:00:00
[Track1]        TrackModifyDate                 : 0000:00:00 00:00:00
[Track1]        MediaCreateDate                 : 0000:00:00 00:00:00
[Track1]        MediaModifyDate                 : 0000:00:00 00:00:00
[Track2]        TrackCreateDate                 : 0000:00:00 00:00:00
[Track2]        TrackModifyDate                 : 0000:00:00 00:00:00
[Track2]        MediaCreateDate                 : 0000:00:00 00:00:00
[Track2]        MediaModifyDate                 : 0000:00:00 00:00:00
    1 directories scanned
    2 image files read

[Phil Harvey]

The good news is that I can decode the GPS and speed from these videos.  The bad news is there are no timestamps in the GPS information, so you can extract your track, but won't be able to use it for geotagging.

- Phil

Edit: Maybe try setting the clock on the dashcam and recording a new video to see if the timestamps are set.

[borism]

Interesting, thanks Phil - do you have an example .gpx that you were able to extract from those videos?

[Phil Harvey]

Here you go.  This is the output from one of the videos.

- Phil