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avfilter/vf_delogo: make the interp value compute method simple 

because the interp >= 0UL comparison of an unsigned value is always true
fix CID: 1454642

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
This commit is contained in:
Steven Liu 2019-10-08 11:45:33 +08:00
parent aea82dfe22
commit a76a516e76
1 changed files with 1 additions and 1 deletions
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2
libavfilter/vf_delogo.c
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@ -168,7 +168,7 @@ static void apply_delogo(uint8_t *dst, int dst_linesize,
botleft[x-logo_x1-1] +
botleft[x-logo_x1+1]) * weightb;
weight = (weightl + weightr + weightt + weightb) * 3U;
interp = ROUNDED_DIV(interp, weight);
interp = (interp + (weight >> 1)) / weight;
if (y >= logo_y+band && y < logo_y+logo_h-band &&
x >= logo_x+band && x < logo_x+logo_w-band) {