Garmin Virb Edit
Garmin's Virb edit software can combine video and GPS track information with "eye-candy" overlay controls.
Download: http://www.garmin.com/de-AT/shop/downloads/virb-edit
Using other camara brands
You can use video footage from another camera like a gopro, but maybe you have to convert the video format.
The following worked for me:
MP4 Container, AAC Audio, AVC/H264 Video.
I used "avidemux" on Ubuntu 14.04 to convert the video format.
apt-get install avidemux-qt
Configuration:
- Video: copy
- Audio: AAC
- Container: MP4