[96455ca] No playback with RGB pixel formats

[LordHDL]

This may be intentional, but video files with RGB pixel formats aren't supported. Here's a sample recorded with rgb24: https://www.dropbox.com/s/8j7bdh1gedj4vid/RGB%20Sample.mp4?dl=0

You can see it with media players like the VLC nightlies and ffplay.

[zakk4223]

The movie source is based on OS X APIs, so the formats it supports are (likely) exactly the same as what QuickTime Player supports. It doesn't look like there is native support for RGB pixel formats yet that I can tell.

I might look into switching to the ffmpeg libraries in the future, but I suspect it'll be a while.