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avcodec/vvcdec: refact out is_available from is_a0_available

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Nuo Mi 2024-01-14 11:58:37 +08:00
parent e8ac761293
commit 93b0d5f9ce
1 changed files with 12 additions and 6 deletions
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18
libavcodec/vvc/mvs.c
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@ -545,6 +545,16 @@ typedef struct NeighbourContext {
const VVCLocalContext *lc;
} NeighbourContext;
static int is_available(const VVCFrameContext *fc, const int x0, const int y0)
{
const VVCSPS *sps = fc->ps.sps;
const int x = x0 >> sps->min_cb_log2_size_y;
const int y = y0 >> sps->min_cb_log2_size_y;
const int min_cb_width = fc->ps.pps->min_cb_width;
return SAMPLE_CTB(fc->tab.cb_width[0], x, y) != 0;
}
static int is_a0_available(const VVCLocalContext *lc, const CodingUnit *cu)
{
const VVCFrameContext *fc = lc->fc;
@ -555,15 +565,11 @@ static int is_a0_available(const VVCLocalContext *lc, const CodingUnit *cu)
if (!x0b && !lc->ctb_left_flag) {
cand_bottom_left = 0;
} else {
const int log2_min_cb_size = sps->min_cb_log2_size_y;
const int min_cb_width = fc->ps.pps->min_cb_width;
const int x = (cu->x0 - 1) >> log2_min_cb_size;
const int y = (cu->y0 + cu->cb_height) >> log2_min_cb_size;
const int max_y = FFMIN(fc->ps.pps->height, ((cu->y0 >> sps->ctb_log2_size_y) + 1) << sps->ctb_log2_size_y);
const int max_y = FFMIN(fc->ps.pps->height, ((cu->y0 >> sps->ctb_log2_size_y) + 1) << sps->ctb_log2_size_y);
if (cu->y0 + cu->cb_height >= max_y)
cand_bottom_left = 0;
else
cand_bottom_left = SAMPLE_CTB(fc->tab.cb_width[0], x, y) != 0;
cand_bottom_left = is_available(fc, cu->x0 - 1, cu->y0 + cu->cb_height);
}
return cand_bottom_left;
}