I know this is kind of taboo around here but what is a good video extension? I need something that can support just about everything - not just windows. So, Mac, Windows, IPad, iPhone, and Android ideally.
If your goal is simply to view a video in a game, not save or load videos.
You could try this.
I haven't tried this or know the efficency of it but.
1)Save each frame of the video as an image using some other software. Convert video to images
2)Load them to gamemaker and convert the sprites to buffers (draw sprite on surface -> store surface to buffer)
3)Load surfaces in create event drawing stored buffers into surfaces using buffer_set_surface
4)Cycle through the surfaces