GPS routedata in video - alternative creating a parallel GPX file to video

[AC Question]

I would like to use S6 as an action camera. GoPro map gps route data in the mp4 vido file. On S6 it is pretty easy to tag gps location on images and video, but it only files the starting point. Do any of you know if the build camera can file such gps data in the mp4 file? Maybe some knows alternative camera apps capable of doing so.
Alternative some may know a GPS tracker capable of producing a parallel GPX file?