This repo combines the work of:
github.com/stilldavid/gopro-utils
github.com/paulmach/go.geo
github.com/tkrajina/gpxgo
Do NOT change the repo name (except to remove -master if present) or else you will have to go through every file and change the import statements!
Save this repo in your profile's Go directory. C:\Users\USERNAME\go\src
The following steps will enable you to extract the GPS data from a GoPro video by: first, extracting the metadata from the mp4 file as a binary file; second, converting that file to a GPX file. In order to do this you will need to install a utility called ffmpeg and the Go language. The download and installation process can be found in the Wiki.
ffprobe [FILENAME].mp4.ffmpeg -y -i [INFILENAME].mp4 -codec copy -map 0:[STREAMID] -f rawvideo [OUTFILENAME].bingopro2gpx -i [INFILENAME].bin -o [OUTFILENAME].gpx
Steps 1 and 2 must be done with the mp4 file in the ffmpeg\bin folder.