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avcodec/vc1: Combine identical checks

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2024-05-04 00:30:22 +02:00
parent d6d14b3a15
commit 91fce67691
1 changed files with 10 additions and 8 deletions
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18
libavcodec/vc1.c
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@ -583,21 +583,23 @@ int ff_vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContex
static void rotate_luts(VC1Context *v)
{
#define ROTATE(DEF, L, N, C, A) do { \
if (v->s.pict_type == AV_PICTURE_TYPE_BI || v->s.pict_type == AV_PICTURE_TYPE_B) { \
C = A; \
} else { \
if (v->s.pict_type == AV_PICTURE_TYPE_BI || v->s.pict_type == AV_PICTURE_TYPE_B) {
v->curr_use_ic = &v->aux_use_ic;
v->curr_luty = v->aux_luty;
v->curr_lutuv = v->aux_lutuv;
} else {
#define ROTATE(DEF, L, N, C) do { \
DEF; \
memcpy(&tmp, L , sizeof(tmp)); \
memcpy(L , N , sizeof(tmp)); \
memcpy(N , &tmp, sizeof(tmp)); \
C = N; \
} \
} while(0)
ROTATE(int tmp, &v->last_use_ic, &v->next_use_ic, v->curr_use_ic, &v->aux_use_ic);
ROTATE(uint8_t tmp[2][256], v->last_luty, v->next_luty, v->curr_luty, v->aux_luty);
ROTATE(uint8_t tmp[2][256], v->last_lutuv, v->next_lutuv, v->curr_lutuv, v->aux_lutuv);
ROTATE(int tmp, &v->last_use_ic, &v->next_use_ic, v->curr_use_ic);
ROTATE(uint8_t tmp[2][256], v->last_luty, v->next_luty, v->curr_luty);
ROTATE(uint8_t tmp[2][256], v->last_lutuv, v->next_lutuv, v->curr_lutuv);
}
INIT_LUT(32, 0, v->curr_luty[0], v->curr_lutuv[0], 0);
INIT_LUT(32, 0, v->curr_luty[1], v->curr_lutuv[1], 0);