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avcodec/vvc/intra: add ff_vvc_palette_derive_scale

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Signed-off-by: Wu Jianhua <toqsxw@outlook.com>
This commit is contained in:
Wu Jianhua
2025-05-14 21:40:16 +08:00
committed by Nuo Mi
parent 3ecf8f8766
commit fd85f83608
2 changed files with 33 additions and 20 deletions
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18
libavcodec/vvc/intra.c
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@ -336,9 +336,6 @@ static void derive_qp(const VVCLocalContext *lc, const TransformUnit *tu, Transf
tb->bd_offset = (1 << tb->bd_shift) >> 1; tb->bd_offset = (1 << tb->bd_shift) >> 1;
} }
//8.7.3 Scaling process for transform coefficients
static av_always_inline int derive_scale(const TransformBlock *tb, const int sh_dep_quant_used_flag)
{
static const uint8_t rem6[63 + 8 * 6 + 1] = { static const uint8_t rem6[63 + 8 * 6 + 1] = {
0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
@ -359,6 +356,10 @@ static av_always_inline int derive_scale(const TransformBlock *tb, const int sh_
{ 40, 45, 51, 57, 64, 72 }, { 40, 45, 51, 57, 64, 72 },
{ 57, 64, 72, 80, 90, 102 } { 57, 64, 72, 80, 90, 102 }
}; };
//8.7.3 Scaling process for transform coefficients
static av_always_inline int derive_scale(const TransformBlock *tb, const int sh_dep_quant_used_flag)
{
const int addin = sh_dep_quant_used_flag && !tb->ts; const int addin = sh_dep_quant_used_flag && !tb->ts;
const int qp = tb->qp + addin; const int qp = tb->qp + addin;
@ -658,6 +659,17 @@ static void ibc_fill_vir_buf(const VVCLocalContext *lc, const CodingUnit *cu)
} }
} }
int ff_vvc_palette_derive_scale(VVCLocalContext *lc, const TransformUnit *tu, TransformBlock *tb)
{
const VVCSPS *sps = lc->fc->ps.sps;
const int qp_prime_ts_min = 4 + 6 * sps->r->sps_min_qp_prime_ts;
int qp;
derive_qp(lc, tu, tb);
qp = FFMAX(qp_prime_ts_min, tb->qp);
return level_scale[0][rem6[qp]] << div6[qp];
}
int ff_vvc_reconstruct(VVCLocalContext *lc, const int rs, const int rx, const int ry) int ff_vvc_reconstruct(VVCLocalContext *lc, const int rs, const int rx, const int ry)
{ {
const VVCFrameContext *fc = lc->fc; const VVCFrameContext *fc = lc->fc;

1
libavcodec/vvc/intra.h
View File

@ -45,5 +45,6 @@ int ff_vvc_intra_pred_angle_derive(int pred_mode);
int ff_vvc_intra_inv_angle_derive(int pred_mode); int ff_vvc_intra_inv_angle_derive(int pred_mode);
int ff_vvc_wide_angle_mode_mapping(const CodingUnit *cu, int ff_vvc_wide_angle_mode_mapping(const CodingUnit *cu,
int tb_width, int tb_height, int c_idx, int pred_mode_intra); int tb_width, int tb_height, int c_idx, int pred_mode_intra);
int ff_vvc_palette_derive_scale(VVCLocalContext *lc, const TransformUnit *tu, TransformBlock *tb);
#endif // AVCODEC_VVC_INTRA_H #endif // AVCODEC_VVC_INTRA_H