[mythtv-users] How Does Time Stretch Work?

[Ivan Kowalenko]

Evening. I've got a moderately technical question, it's not exactly a  
tech support question, but I'm wondering what kind of strategy does  
MythTV use to do time stretching? I mean, if I bump playback speed to  
1.1x, does it just drop frames, or attempt to play the video back at a  
higher frame rate (like if I went to 2.0x, would it try to play back  
at ~60 FPS?). Or does it do something completely different?

I'll be honesty, I don't know jack about coding, but I find these  
kinds of details interesting.

Thanks for any info!