Add support to handle GoPro Timewarp with realtime footage

[KyleGW]

Using a Timewarp (timelapse) video from a GoPro Hero 11 (supported in Hero 7 onward) with sections of real speed.

https://community.gopro.com/s/article/what-is-timewarp-video

Currently, in the produced overlay file, once it hits realspeed, the overlay footage stays in fast-speed and gets out of sync with the video.

I have emailed a link to example footage to gopro-overlay at time4tea dot net.

[time4tea]

Hi - Thanks for this... Currently the software does support timewarp mode, and other slow-mo modes, but not switching between them in the same video. I'll definitely add this to the the feature list, but I'm not sure its a super-high priority at the moment.. If others express an interest I'll have a think about it. Cheers!