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dsicinav: fix signed integer overflow

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-08-31 15:15:59 +02:00
parent a9a1bc56ab
commit f61ee9b564
1 changed files with 2 additions and 2 deletions
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4
libavcodec/dsicinav.c
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@ -227,12 +227,12 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
if (palette_colors_count > 256)
return AVERROR_INVALIDDATA;
for (i = 0; i < palette_colors_count; ++i) {
cin->palette[i] = 0xFF << 24 | bytestream_get_le24(&buf);
cin->palette[i] = 0xFFU << 24 | bytestream_get_le24(&buf);
bitmap_frame_size -= 3;
}
} else {
for (i = 0; i < palette_colors_count; ++i) {
cin->palette[buf[0]] = 0xFF << 24 | AV_RL24(buf+1);
cin->palette[buf[0]] = 0xFFU << 24 | AV_RL24(buf+1);
buf += 4;
bitmap_frame_size -= 4;
}