[x264-devel] add optimised functions (zigzag_scan_4x4)

[Guillaume Poirier]

Hello,

Le 8 déc. 07 à 11:59, Noboru Asai a écrit :

> These patches add the following optimised functions accelerated  
> with altivec
> and test functions.
>
> o x264_zigzag_scan_4x4_frame_altivec()
> o x264_zigzag_scan_4x4ac_frame_altivec()
> o x264_zigzag_scan_4x4_field_altivec()
> o x264_zigzag_scan_4x4ac_field_altivec()
>
> Any comments are welcome.
>
> Noboru Asai
> <patch-add-altivec-zigzag_scan_4x4>

That one looks Ok to me. Do you have typical speed-up over the C  
version, and typical overall speed-up for a given set of encoding  
options?


> <patch-add-check-zigzag>

That one looks Ok to me too, but I'd like to have Loren's comment on  
it since it touches common code.

Unless he disagrees, I'm tempted to apply in the middle of next week.

Guillaume