Multiple Video Tracks in One Video File

[Kyrad]

I have watched a number of anime on computers where the file contained multiple audio tracks that I can select. I am thinking the same logic should apply to video tracks.

I have need to create a video file (to be played only on the computer) containing two video tracks, one serving as a PIP that I must be able to turn on and off. Is such thing possible? I have googled and most results are about video editing instead of the video itself.

If I can't turn on or off the PIP video track, I am happy to toggle between them instead, just like how the audio tracks are. Again, is this possible?

[Baldrick]

The mp4 and mkv containers can contain two video tracks. Use yamb or mkvtoolnix to add video tracks.

But I don't know any software video player that supports PIP.

[Kyrad]

Thanks! The two tools does allow multiple video tracks.

Turns out the software I am importing my videos into accepts only mp4 and not mkv. The problem is, I have no problem muxing the video and audio using mkvtoolnix. It works excellently without me even reading the documentation.

With Yamb, the latest version shows no videos at all when played in Media Player Classic but opens up two video windows when played in VLC Media player. The video tracks do play at the intended 15fps though.

With the Yamb 1.6, I can get my video tracks, however, the videos, which are suppose to be 15fps, are playing faster than they should. Audio plays normally though.

Any help?