Extract GoPro metadata (specifically geodata)

gistfile1.txt

https://github.com/stilldavid/gopro-utils

$ brew install ffmpeg
$ brew install go
$ brew install jq

$ go get github.com/stilldavid/gopro-utils/bin/gopro2json/gopro2json.go
$ go get github.com/stilldavid/gopro-utils/bin/gopro2gpx/gopro2gpx.go

$ ffprobe GOPR0001.MP4
 - find the stream
 Stream #0:3(eng): Data: none (gpmd / 0x646D7067), 37 kb/s (default)
 Metadata:
   creation_time   : 2018-03-27T11:20:52.000000Z
   handler_name    : GoPro MET

Show JSON format
$ ffprobe -v quiet -print_format json -show_format -show_streams GOPR0001.MP4
Extract the stream from JSON format
$ ffprobe -v quiet -print_format json -show_format -show_streams GOPR0001.MP4 | jq '.streams[] | select (.tags.handler_name | contains("GoPro MET")) | .index'
   
m = 3 from above
ffmpeg -y -i GOPR0001.MP4 -codec copy -map 0:m:handler_name:" GoPro MET" -f rawvideo GOPR0001.bin
gopro2json -i GOPR0001.bin -o GOPR0001.json