[FFmpeg-devel] [PATCH] vp9: add avx2 iadst16 implementations.

[Ronald S. Bultje]

Hi,

On Mon, Nov 14, 2016 at 4:26 PM, James Almer <jamrial at gmail.com> wrote:

> On 11/8/2016 1:22 PM, Ronald S. Bultje wrote:
> > Also a small cosmetic change to the avx2 idct16 version to make it
> > explicit that one of the arguments to the write-out macros is unused
> > for >=avx2 (it uses pmovzxbw instead of punpcklbw).
>
> A braindead test (ffmpeg -i 4kHDRsample.webm -benchmark -f null -) on an i5
> Haswell went from
>
> frame= 2000 fps= 73 q=-0.0 Lsize=N/A time=00:00:33.36 bitrate=N/A
> speed=1.21x
> bench: utime=92.250s
>
> To
>
> frame= 2000 fps= 77 q=-0.0 Lsize=N/A time=00:00:33.36 bitrate=N/A
> speed=1.28x
> bench: utime=86.891s
>
> In comparison, a 1080p version of the same video now reaches ~360fps.
>
> FATE passes, so LGTM (After the x86_32 fix).


Sorry, lost track a bit, pushed.

Ronald