Extract GPS data from large INSV (Insta360) video

[camhart]

I have a 9 minute insta360 video (4.57gb insv file).  I'd like to extract all of the GPS info from it.

I run the following command:

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exiftool.exe -m -ee -api largefilesupport -p gpx.fmt VID_20220109_140606_00_008.insv > vid.gpx

Then this is outputted:

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Warning: Truncated 'y\x9c}\xf8' data - VID_20220109_140606_00_008.insv

The vid.gpx file contains some data, but not 9 minutes of GPS data.  Can exiftool be used on such a large file?

If needed I can upload it, but it'll take a few hours .

Thanks for exiftool by the way!

[camhart]

Nevermind!  I'm horrible at math.  It looks like all the GPS data is there even with the warning.