This app was mentioned in 1 comment, with an average of 2.00 upvotes
Google got me this CMV thing, for the iPhone
Just dl'd it. It's pretty neat (except for the ugly UI). You can scrub through the timeline, go forward/back one frame each, skip ahead/back 5 seconds, and play the vid at 2x, 1x, and 0.5x. Plus, you can draw over it all with lines and angles and stuff (although it looks annoying and messy).
This looks like the Android equivilent? I don't have an android on me, so I can't test it. The video they have to demonstrate it seems like it's a normal videoplayer with slow-mo/frame-by-frame capabilities. No drawing tool, if that's what you need.