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avcodec/dvbsubdec: Split best score computation out of loop in compute_default_clut()

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3% faster

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-10-01 18:10:36 +02:00
parent cd2f69cdd6
commit 963247b5f3
1 changed files with 6 additions and 3 deletions
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9
libavcodec/dvbsubdec.c
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@ -680,14 +680,17 @@ static void compute_default_clut(AVSubtitleRect *rect, int w, int h)
int l_r = x+1<w ? L( 1, 0) : 1; int l_r = x+1<w ? L( 1, 0) : 1;
int l_t = y ? L( 0,-1) : 1; int l_t = y ? L( 0,-1) : 1;
int l_b = y+1<h ? L( 0, 1) : 1; int l_b = y+1<h ? L( 0, 1) : 1;
int score;
if (l_m) if (l_m)
continue; continue;
scoretab[v] += l_l + l_r + l_t + l_b; scoretab[v] += l_l + l_r + l_t + l_b;
score = 1024LL*scoretab[v] / counttab[v]; }
}
for (x = 0; x < 256; x++) {
if (scoretab[x]) {
int score = 1024LL*scoretab[x] / counttab[x];
if (score > bestscore) { if (score > bestscore) {
bestscore = score; bestscore = score;
bestv = v; bestv = x;
} }
} }
} }