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yadif: add parens around macro parameters

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This fixes compilation with preprocessors which do not add whitespace
around replaced tokens, resulting in invalid expressions like 1--1.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard
2011-02-24 21:25:53 +00:00
parent 53e35fd340
commit 391a1327bd
1 changed files with 4 additions and 4 deletions
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8
libavfilter/vf_yadif.c
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@@ -73,12 +73,12 @@ static void filter_line_c(uint8_t *dst,
+ FFABS(cur[-refs+1] - cur[+refs+1]) - 1; + FFABS(cur[-refs+1] - cur[+refs+1]) - 1;
#define CHECK(j)\ #define CHECK(j)\
{ int score = FFABS(cur[-refs-1+j] - cur[+refs-1-j])\ { int score = FFABS(cur[-refs-1+(j)] - cur[+refs-1-(j)])\
+ FFABS(cur[-refs +j] - cur[+refs -j])\ + FFABS(cur[-refs +(j)] - cur[+refs -(j)])\
+ FFABS(cur[-refs+1+j] - cur[+refs+1-j]);\ + FFABS(cur[-refs+1+(j)] - cur[+refs+1-(j)]);\
if (score < spatial_score) {\ if (score < spatial_score) {\
spatial_score= score;\ spatial_score= score;\
spatial_pred= (cur[-refs +j] + cur[+refs -j])>>1;\ spatial_pred= (cur[-refs +(j)] + cur[+refs -(j)])>>1;\
CHECK(-1) CHECK(-2) }} }} CHECK(-1) CHECK(-2) }} }}
CHECK( 1) CHECK( 2) }} }} CHECK( 1) CHECK( 2) }} }}