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gif: fix invalid signed shifts 

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-11-25 17:51:10 +00:00
parent 7fb55e0b02
commit 3bd1162a52
1 changed files with 2 additions and 2 deletions
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4
libavcodec/gifdec.c
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@ -96,11 +96,11 @@ static int gif_read_image(GifState *s)
n = (1 << bits_per_pixel);
spal = palette;
for(i = 0; i < n; i++) {
s->image_palette[i] = (0xff << 24) | AV_RB24(spal);
s->image_palette[i] = (0xffu << 24) | AV_RB24(spal);
spal += 3;
}
for(; i < 256; i++)
s->image_palette[i] = (0xff << 24);
s->image_palette[i] = (0xffu << 24);
/* handle transparency */
if (s->transparent_color_index >= 0)
s->image_palette[s->transparent_color_index] = 0;