RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-28 10:22:10 +00:00
Code Issues Projects Releases Wiki Activity

x86/hevc_deblock: use psignw instead of pmullw where possible

Browse Source 
It's slightly faster

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
James Almer 2014-07-28 21:11:49 -03:00 committed by Michael Niedermayer
parent 983109bbd9
commit 4f91bb0ff0
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
libavcodec/x86/hevc_deblock.asm
View File

@ -324,7 +324,11 @@ ALIGN 16
movd m4, [tcq+4]; tc1
punpcklwd m4, m4
shufps m6, m4, 0; tc0, tc1
%if cpuflag(ssse3)
psignw m4, m6, [pw_m1]; -tc0, -tc1
%else
pmullw m4, m6, [pw_m1]; -tc0, -tc1
%endif
;end tc calculations
paddw m5, [pw_4]; +4
@ -609,7 +613,11 @@ ALIGN 16
pminsw m12, m9; av_clip(delta0, -tc, tc)
psraw m9, 1; tc -> tc / 2
%if cpuflag(ssse3)
psignw m14, m9, [pw_m1]; -tc / 2
%else
pmullw m14, m9, [pw_m1]; -tc / 2
%endif
pavgw m15, m1, m3; (p2 + p0 + 1) >> 1
psubw m15, m2; ((p2 + p0 + 1) >> 1) - p1