generic-library/vpx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Reduce computational complexity of generic C loop filter.

Browse Source 
Change-Id: I1e7f9ed3cd907844a495b9e0073bc140b87e5c06
This commit is contained in:
Aaron Watry 2011-09-29 17:25:48 -05:00
parent 6f9457ec12
commit 69aa303d96
1 changed files with 8 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
vp8/common/loopfilter_filters.c
View File

@ -29,15 +29,14 @@ static __inline signed char vp8_filter_mask(uc limit, uc blimit,
uc q0, uc q1, uc q2, uc q3)
{
signed char mask = 0;
mask |= (abs(p3 - p2) > limit) * -1;
mask |= (abs(p2 - p1) > limit) * -1;
mask |= (abs(p1 - p0) > limit) * -1;
mask |= (abs(q1 - q0) > limit) * -1;
mask |= (abs(q2 - q1) > limit) * -1;
mask |= (abs(q3 - q2) > limit) * -1;
mask |= (abs(p0 - q0) * 2 + abs(p1 - q1) / 2 > blimit) * -1;
mask = ~mask;
return mask;
mask |= (abs(p3 - p2) > limit);
mask |= (abs(p2 - p1) > limit);
mask |= (abs(p1 - p0) > limit);
mask |= (abs(q1 - q0) > limit);
mask |= (abs(q2 - q1) > limit);
mask |= (abs(q3 - q2) > limit);
mask |= (abs(p0 - q0) * 2 + abs(p1 - q1) / 2 > blimit);
return mask - 1;
}
/* is there high variance internal edge ( 11111111 yes, 00000000 no) */