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Add av_clip_uintp2() function

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Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard
2011-05-13 16:39:17 +01:00
committed by Ronald S. Bultje
parent 2c9a5172d3
commit 1550f45a89
2 changed files with 16 additions and 3 deletions
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4
libavcodec/vp8.c
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@@ -1329,9 +1329,7 @@ static av_always_inline void filter_level_for_mb(VP8Context *s, VP8Macroblock *m
filter_level += s->lf_delta.mode[mb->mode];
}
/* Like av_clip for inputs 0 and max, where max is equal to (2^n-1) */
#define POW2CLIP(x,max) (((x) & ~max) ? (-(x))>>31 & max : (x));
filter_level = POW2CLIP(filter_level, 63);
filter_level = av_clip_uintp2(filter_level, 6);
interior_limit = filter_level;
if (s->filter.sharpness) {