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vc1: Simplify code by using INIT_LUT()

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Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Michael Niedermayer 2013-04-24 12:51:28 +02:00 committed by Martin Storsjö
parent 0379fc1487
commit 37f2ac36a9
1 changed files with 1 additions and 16 deletions
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17
libavcodec/vc1.c
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@ -693,22 +693,7 @@ int ff_vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
v->lumshift = get_bits(gb, 6);
v->use_ic = 1;
/* fill lookup tables for intensity compensation */
if (!v->lumscale) {
scale = -64;
shift = (255 - v->lumshift * 2) << 6;
if (v->lumshift > 31)
shift += 128 << 6;
} else {
scale = v->lumscale + 32;
if (v->lumshift > 31)
shift = (v->lumshift - 64) << 6;
else
shift = v->lumshift << 6;
}
for (i = 0; i < 256; i++) {
v->luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6);
v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
}
INIT_LUT(v->lumscale, v->lumshift, v->luty, v->lutuv);
}
v->qs_last = v->s.quarter_sample;
if (v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)