[MPlayer-dev-eng] MS-ADPCM/Stereo Works

Arpi arpi at thot.banki.hu
Fri Dec 28 14:27:04 CET 2001


Hi,

> > 	There may yet be some opportunity. Is there any efficient way to
> > rip apart nibbles and interleave them using SIMD instructions? Also,
> interleave them bytewise and mask and or shift at the end
> interleave 8 blocks -> n11, n12, n21, n22, n31, n32 ... (4-bit each)
> after masking (pand) -> n11, n21, n31, ... (8-bit each)
> or shift&mask (pand, psrlw $4) -> n12, n22, n32, ... (8-bit each)

ehh...

back to the reality :)

is it possible to use MMX for liba52?
(for non-sse systems)

are all of those optims sse-only, or may work (mayeb with small mods) on
3dnow?

amd k6 users reporetd that libac3 still faster than liba52 :(
(but i really want to kill libac3 from release)


A'rpi / Astral & ESP-team

--
mailto:arpi at thot.banki.hu
http://esp-team.scene.hu



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