Invisible wrote:
> OK, so you can change the frequency weightings and how often a keyframe 
> is put in, and so forth. I'm not seeing much that fundamentally changes 
> the whole algorithm such that it might require less computer power.

Making every frame a keyframe reduces the computing and memory you need. Not 
using any B frames significantly reduces the amount of memory you need. Not 
doing motion prediction reduces how much compute power you need. (At least 
for MPEG. I don't know H.264, but I'd assume it's similar.)

> (Although, as I say, I imagine the really hungry bits probably 
> have custom hardware acceleration in a device like this.)

Exactly.

-- 
Darren New, San Diego CA, USA (PST)
  "How did he die?"   "He got shot in the hand."
     "That was fatal?"
          "He was holding a live grenade at the time."

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