Fine control of YouTube playback.
I've recently started experimenting with Roku and ECP. It's a neat concept, and I think it has a lot of potenetial. However, I'm stuck trying to find information concerning fine control of apps such as YouTube. For instance, I know it's possible to send a keypress/right command and that will essentially "fast forward" (kind of a very loose usage of that term) the video being played. What I'd like to do is to be able to position playback at a specific location to do things like advance the frame one by one. Any ideas on how this level of control can be achieved?
I've also seen that there is an "input" command available, however this seems to be very application specific. Virtually no information is available regarding how to use this command with the YouTube app.
Just curious.