[MPlayer-users] Whitepaper on MPEG processing...

Rich Felker dalias at aerifal.cx
Thu Sep 22 01:38:58 CEST 2005


On Tue, Sep 20, 2005 at 08:10:09PM -0600, Philip Prindeville wrote:
> Ok, so why do some processors brag instruction supersets to accelerate
> MPEG decoding?

Trivial, if you have a decent vector unit. Otherwise it will take some
time.

> And what about H.264 (AVC)?  Is it basically the same as MPEG-4 in
> terms of general algorithm and datastructures?

Not really. It's a LOT of new stuff which adds 300% slowdown and
15-30% compression gain. The basic ideas are the same but it's much
more complex.

Rich




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