[x264-devel] Re: [PATCH] Altivec optimizations for quant4x4, quant4x4dc, quant8x8, sub8x8_dct8, sub16x16_dct8

[Loren Merritt]

On Sun, 27 Aug 2006, Guillaume POIRIER wrote:

> The attached patch adds sub16x16_dct8 to the bunch of optimized codes.
>
> I realize that I have not advertised the speed-up:
> All functions get a 3.3x to 3.5x speed-up, except quant4x4 which get a
> far bigger speed-up, but I lost the sheet on which I had it written
> down (I think it was a 7x speed-up, but not sure).
>
> Overall, on an encode with lost of options, RD, and stuff, I get a
> 2.5% speed-up, but encodes with more straightforward options should
> get an even bigger overall speed-up.
>
> Next step:  x264_pixel_sa8d_8x8 and friends (20% through for now).

I don't see common/ppc/quant.[ch] anymore, forgot to svn add?

--Loren Merritt

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