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lavc/jpeg2000dec: Fix used variables reading palette.

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Affected files with palette and colour-depth < 8.
This commit is contained in:
Carl Eugen Hoyos 2017-11-12 04:29:06 +01:00
parent 5b5365fe9d
commit b998a56b0a
1 changed files with 2 additions and 2 deletions
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4
libavcodec/jpeg2000dec.c
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@ -2039,13 +2039,13 @@ static int jp2_find_codestream(Jpeg2000DecoderContext *s)
}
if (colour_depth[1] <= 8) {
g = bytestream2_get_byteu(&s->g) << 8 - colour_depth[1];
r |= r >> colour_depth[1];
g |= g >> colour_depth[1];
} else {
g = bytestream2_get_be16u(&s->g) >> colour_depth[1] - 8;
}
if (colour_depth[2] <= 8) {
b = bytestream2_get_byteu(&s->g) << 8 - colour_depth[2];
r |= r >> colour_depth[2];
b |= b >> colour_depth[2];
} else {
b = bytestream2_get_be16u(&s->g) >> colour_depth[2] - 8;
}