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avcodec/vvcdec: deblock, support virtual boundaries

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This commit is contained in:
Nuo Mi 2024-06-15 10:44:30 +08:00
parent 80ded9cfe7
commit 17c8b63781
1 changed files with 30 additions and 4 deletions
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34
libavcodec/vvc/filter.c
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@ -55,6 +55,29 @@ static const uint8_t betatable[64] = {
58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88,
};
static int get_virtual_boundary(const VVCFrameContext *fc, const int ctu_pos, const int vertical)
{
const VVCSPS *sps = fc->ps.sps;
const VVCPH *ph = &fc->ps.ph;
const uint16_t *vbs = vertical ? ph->vb_pos_x : ph->vb_pos_y;
const uint8_t nb_vbs = vertical ? ph->num_ver_vbs : ph->num_hor_vbs;
const int pos = ctu_pos << sps->ctb_log2_size_y;
if (sps->r->sps_virtual_boundaries_enabled_flag) {
for (int i = 0; i < nb_vbs; i++) {
const int o = vbs[i] - pos;
if (o >= 0 && o < sps->ctb_size_y)
return vbs[i];
}
}
return 0;
}
static int is_virtual_boundary(const VVCFrameContext *fc, const int pos, const int vertical)
{
return get_virtual_boundary(fc, pos >> fc->ps.sps->ctb_log2_size_y, vertical) == pos;
}
static int get_qPc(const VVCFrameContext *fc, const int x0, const int y0, const int chroma)
{
const int x = x0 >> MIN_TU_LOG2;
@ -429,6 +452,7 @@ static void vvc_deblock_subblock_bs(const VVCLocalContext *lc,
// bs for TU internal vertical PU boundaries
for (int i = 8 - ((x0 - cb) % 8); i < width; i += 8) {
const int is_vb = is_virtual_boundary(fc, x0 + i, vertical);
const int xp_pu = (x0 + i - 1) >> log2_min_pu_size;
const int xq_pu = (x0 + i) >> log2_min_pu_size;
@ -436,7 +460,7 @@ static void vvc_deblock_subblock_bs(const VVCLocalContext *lc,
const int y_pu = (y0 + j) >> log2_min_pu_size;
const MvField *mvf_p = &tab_mvf[y_pu * stridea + xp_pu * strideb];
const MvField *mvf_q = &tab_mvf[y_pu * stridea + xq_pu * strideb];
const int bs = boundary_strength(lc, mvf_q, mvf_p, rpl);
const int bs = is_vb ? 0 : boundary_strength(lc, mvf_q, mvf_p, rpl);
int x = x0 + i;
int y = y0 + j;
uint8_t max_len_p = 0, max_len_q = 0;
@ -557,6 +581,7 @@ static void vvc_deblock_bs_luma(const VVCLocalContext *lc,
(x0 >> log2_min_pu_size)].pred_flag == PF_INTRA;
if (deblock_is_boundary(lc, pos > 0 && !(pos & mask), pos, rs, vertical)) {
const int is_vb = is_virtual_boundary(fc, pos, vertical);
const int size = vertical ? height : width;
const int off = cb - pos;
const int cb_size = (vertical ? fc->tab.cb_width : fc->tab.cb_height)[LUMA][off_q];
@ -569,7 +594,7 @@ static void vvc_deblock_bs_luma(const VVCLocalContext *lc,
const int x = x0 + i * !vertical;
const int y = y0 + i * vertical;
uint8_t max_len_p, max_len_q;
const int bs = deblock_bs(lc, x - vertical, y - !vertical, x, y, rpl_p, LUMA, off, has_sb);
const int bs = is_vb ? 0 : deblock_bs(lc, x - vertical, y - !vertical, x, y, rpl_p, LUMA, off, has_sb);
TAB_BS(fc->tab.bs[vertical][LUMA], x, y) = bs;
@ -594,13 +619,14 @@ static void vvc_deblock_bs_chroma(const VVCLocalContext *lc,
const int pos = vertical ? x0 : y0;
if (deblock_is_boundary(lc, pos > 0 && !(pos & mask), pos, rs, vertical)) {
const int size = vertical ? height : width;
const int is_vb = is_virtual_boundary(fc, pos, vertical);
const int size = vertical ? height : width;
for (int c_idx = CB; c_idx <= CR; c_idx++) {
for (int i = 0; i < size; i += 2) {
const int x = x0 + i * !vertical;
const int y = y0 + i * vertical;
const int bs = deblock_bs(lc, x - vertical, y - !vertical, x, y, NULL, c_idx, 0, 0);
const int bs = is_vb ? 0 : deblock_bs(lc, x - vertical, y - !vertical, x, y, NULL, c_idx, 0, 0);
TAB_BS(fc->tab.bs[vertical][c_idx], x, y) = bs;
}