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Diffstat (limited to 'libavcodec/vvc/ps.h')
| -rw-r--r-- | libavcodec/vvc/ps.h | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/libavcodec/vvc/ps.h b/libavcodec/vvc/ps.h new file mode 100644 index 0000000000..3efb097b41 --- /dev/null +++ b/libavcodec/vvc/ps.h @@ -0,0 +1,266 @@ +/* + * VVC parameter set parser + * + * Copyright (C) 2023 Nuo Mi + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_VVC_PS_H +#define AVCODEC_VVC_PS_H + +#include "libavcodec/cbs_h266.h" +#include "libavcodec/vvc.h" + +#define IS_IDR(s) ((s)->vcl_unit_type == VVC_IDR_W_RADL || (s)->vcl_unit_type == VVC_IDR_N_LP) +#define IS_CRA(s) ((s)->vcl_unit_type == VVC_CRA_NUT) +#define IS_IRAP(s) (IS_IDR(s) || IS_CRA(s)) +#define IS_GDR(s) ((s)->vcl_unit_type == VVC_GDR_NUT) +#define IS_CVSS(s) (IS_IRAP(s)|| IS_GDR(s)) +#define IS_CLVSS(s) (IS_CVSS(s) && s->no_output_before_recovery_flag) +#define IS_RASL(s) ((s)->vcl_unit_type == VVC_RASL_NUT) +#define IS_RADL(s) ((s)->vcl_unit_type == VVC_RADL_NUT) + +#define IS_I(rsh) ((rsh)->sh_slice_type == VVC_SLICE_TYPE_I) +#define IS_P(rsh) ((rsh)->sh_slice_type == VVC_SLICE_TYPE_P) +#define IS_B(rsh) ((rsh)->sh_slice_type == VVC_SLICE_TYPE_B) + +#define INV_POC INT_MIN +#define GDR_IS_RECOVERED(s) (s->gdr_recovery_point_poc == INV_POC) +#define GDR_SET_RECOVERED(s) (s->gdr_recovery_point_poc = INV_POC) + +#define LMCS_MAX_BIT_DEPTH 12 +#define LMCS_MAX_LUT_SIZE (1 << LMCS_MAX_BIT_DEPTH) +#define LMCS_MAX_BIN_SIZE 16 +#define LADF_MAX_INTERVAL 5 + +enum { + CHROMA_FORMAT_MONO, + CHROMA_FORMAT_420, + CHROMA_FORMAT_422, + CHROMA_FORMAT_444, +}; + +typedef struct VVCSPS { + const H266RawSPS *r; ///< RefStruct reference + + //derived values + uint8_t hshift[VVC_MAX_SAMPLE_ARRAYS]; + uint8_t vshift[VVC_MAX_SAMPLE_ARRAYS]; + uint32_t max_pic_order_cnt_lsb; ///< MaxPicOrderCntLsb + + uint8_t pixel_shift; + enum AVPixelFormat pix_fmt; + + uint8_t bit_depth; ///< BitDepth + uint8_t qp_bd_offset; ///< QpBdOffset + uint8_t ctb_log2_size_y; ///< CtbLog2SizeY + uint8_t ctb_size_y; ///< CtbSizeY + uint8_t min_cb_log2_size_y; ///< MinCbLog2SizeY + uint8_t min_cb_size_y; ///< MinCbSizeY + uint8_t max_tb_size_y; ///< MaxTbSizeY + uint8_t max_ts_size; ///< MaxTsSize + uint8_t max_num_merge_cand; ///< MaxNumMergeCand + uint8_t max_num_ibc_merge_cand; ///< MaxNumIbcMergeCand + uint8_t max_num_gpm_merge_cand; ///< MaxNumGpmMergeCand + uint8_t num_ladf_intervals; ///< sps_num_ladf_intervals_minus2 + 2; + uint32_t ladf_interval_lower_bound[LADF_MAX_INTERVAL]; ///< SpsLadfIntervalLowerBound[] + uint8_t log2_parallel_merge_level; ///< sps_log2_parallel_merge_level_minus2 + 2; + uint8_t log2_transform_range; ///< Log2TransformRange + int8_t chroma_qp_table[3][VVC_MAX_POINTS_IN_QP_TABLE]; ///< ChromaQpTable +} VVCSPS; + +typedef struct DBParams { + int8_t beta_offset[VVC_MAX_SAMPLE_ARRAYS]; + int8_t tc_offset[VVC_MAX_SAMPLE_ARRAYS]; +} DBParams; + +typedef struct VVCPPS { + const H266RawPPS *r; ///< RefStruct reference + + //derived value; + int8_t chroma_qp_offset[3]; ///< pps_cb_qp_offset, pps_cr_qp_offset, pps_joint_cbcr_qp_offset_value + int8_t chroma_qp_offset_list[6][3]; ///< pps_cb_qp_offset_list, pps_cr_qp_offset_list, pps_joint_cbcr_qp_offset_list + + uint16_t width; + uint16_t height; + + uint16_t slice_start_offset[VVC_MAX_SLICES]; + uint16_t num_ctus_in_slice [VVC_MAX_SLICES]; + + uint16_t min_cb_width; + uint16_t min_cb_height; + + uint16_t ctb_width; + uint16_t ctb_height; + uint32_t ctb_count; + + uint16_t min_pu_width; + uint16_t min_pu_height; + uint16_t min_tu_width; + uint16_t min_tu_height; + + uint32_t *ctb_addr_in_slice; ///< CtbAddrInCurrSlice for entire picture + uint16_t *col_bd; ///< TileColBdVal + uint16_t *row_bd; ///< TileRowBdVal + uint16_t *ctb_to_col_bd; ///< CtbToTileColBd + uint16_t *ctb_to_row_bd; ///< CtbToTileRowBd + + uint16_t width32; ///< width in 32 pixels + uint16_t height32; ///< height in 32 pixels + uint16_t width64; ///< width in 64 pixels + uint16_t height64; ///< height in 64 pixels + + uint16_t ref_wraparound_offset; ///< PpsRefWraparoundOffset + + uint16_t subpic_x[VVC_MAX_SLICES]; ///< SubpicLeftBoundaryPos + uint16_t subpic_y[VVC_MAX_SLICES]; ///< SubpicTopBoundaryPos + uint16_t subpic_width[VVC_MAX_SLICES]; + uint16_t subpic_height[VVC_MAX_SLICES]; +} VVCPPS; + +#define MAX_WEIGHTS 15 +typedef struct PredWeightTable { + uint8_t log2_denom[2]; ///< luma_log2_weight_denom, ChromaLog2WeightDenom + + uint8_t nb_weights[2]; ///< num_l0_weights, num_l1_weights + uint8_t weight_flag[2][2][MAX_WEIGHTS]; ///< luma_weight_l0_flag, chroma_weight_l0_flag, + ///< luma_weight_l1_flag, chroma_weight_l1_flag, + int16_t weight[2][VVC_MAX_SAMPLE_ARRAYS][MAX_WEIGHTS]; ///< LumaWeightL0, LumaWeightL1, ChromaWeightL0, ChromaWeightL1 + int16_t offset[2][VVC_MAX_SAMPLE_ARRAYS][MAX_WEIGHTS]; ///< luma_offset_l0, luma_offset_l1, ChromaOffsetL0, ChromaOffsetL1 +} PredWeightTable; + +typedef struct VVCPH { + const H266RawPictureHeader *r; + void *rref; ///< RefStruct reference, backing ph above + + //derived values + uint32_t max_num_subblock_merge_cand; ///< MaxNumSubblockMergeCand + int32_t poc; ///< PicOrderCntVal + PredWeightTable pwt; +} VVCPH; + +#define ALF_NUM_FILTERS_LUMA 25 +#define ALF_NUM_FILTERS_CHROMA 8 +#define ALF_NUM_FILTERS_CC 4 + +#define ALF_NUM_COEFF_LUMA 12 +#define ALF_NUM_COEFF_CHROMA 6 +#define ALF_NUM_COEFF_CC 7 + +typedef struct VVCALF { + int16_t luma_coeff [ALF_NUM_FILTERS_LUMA][ALF_NUM_COEFF_LUMA]; + uint8_t luma_clip_idx [ALF_NUM_FILTERS_LUMA][ALF_NUM_COEFF_LUMA]; + + uint8_t num_chroma_filters; + int16_t chroma_coeff [ALF_NUM_FILTERS_CHROMA][ALF_NUM_COEFF_CHROMA]; + uint8_t chroma_clip_idx[ALF_NUM_FILTERS_CHROMA][ALF_NUM_COEFF_CHROMA]; + + uint8_t num_cc_filters[2]; ///< alf_cc_cb_filters_signalled_minus1 + 1, alf_cc_cr_filters_signalled_minus1 + 1 + int16_t cc_coeff[2][ALF_NUM_FILTERS_CC][ALF_NUM_COEFF_CC]; +} VVCALF; + +enum { + SL_START_2x2 = 0, + SL_START_4x4 = 2, + SL_START_8x8 = 8, + SL_START_16x16 = 14, + SL_START_32x32 = 20, + SL_START_64x64 = 26, + SL_MAX_ID = 28, +}; + +#define SL_MAX_MATRIX_SIZE 8 + +typedef struct VVCScalingList { + uint8_t scaling_matrix_rec[SL_MAX_ID][SL_MAX_MATRIX_SIZE * SL_MAX_MATRIX_SIZE]; ///< ScalingMatrixRec + uint8_t scaling_matrix_dc_rec[SL_MAX_ID - SL_START_16x16]; ///< ScalingMatrixDcRec[refId − 14] +} VVCScalingList; + +typedef struct VVCLMCS { + uint8_t min_bin_idx; + uint8_t max_bin_idx; + + union { + uint8_t u8[LMCS_MAX_LUT_SIZE]; + uint16_t u16[LMCS_MAX_LUT_SIZE]; ///< for high bit-depth + } fwd_lut, inv_lut; + + uint16_t pivot[LMCS_MAX_BIN_SIZE + 1]; + uint16_t chroma_scale_coeff[LMCS_MAX_BIN_SIZE]; +} VVCLMCS; + +#define VVC_MAX_ALF_COUNT 8 +#define VVC_MAX_LMCS_COUNT 4 +#define VVC_MAX_SL_COUNT 8 + +typedef struct VVCParamSets { + const VVCSPS *sps_list[VVC_MAX_SPS_COUNT]; ///< RefStruct reference + const VVCPPS *pps_list[VVC_MAX_PPS_COUNT]; ///< RefStruct reference + const VVCALF *alf_list[VVC_MAX_ALF_COUNT]; ///< RefStruct reference + const H266RawAPS *lmcs_list[VVC_MAX_LMCS_COUNT]; ///< RefStruct reference + const VVCScalingList *scaling_list[VVC_MAX_SL_COUNT]; ///< RefStruct reference +} VVCParamSets; + +typedef struct VVCFrameParamSets { + const VVCSPS *sps; ///< RefStruct reference + const VVCPPS *pps; ///< RefStruct reference + VVCPH ph; + const VVCALF *alf_list[VVC_MAX_ALF_COUNT]; ///< RefStruct reference + VVCLMCS lmcs; + const VVCScalingList *sl; ///< RefStruct reference +} VVCFrameParamSets; + +typedef struct VVCSH { + const H266RawSliceHeader *r; ///< RefStruct reference + + // derived values + // ctu address + uint32_t num_ctus_in_curr_slice; ///< NumCtusInCurrSlice + const uint32_t* ctb_addr_in_curr_slice; ///< CtbAddrInCurrSlice + + // inter + PredWeightTable pwt; + int8_t ref_idx_sym[2]; ///< RefIdxSymL0, RefIdxSymL1 + + // qp_y + int8_t slice_qp_y; ///< SliceQpY + + // deblock_offsets + DBParams deblock; + + // partition constrains + uint8_t min_qt_size[2]; ///< MinQtSizeY, MinQtSizeC + uint8_t max_bt_size[2]; ///< MaxBtSizeY, MaxBtSizeC + uint8_t max_tt_size[2]; ///< MaxTtSizeY, MaxTtSizeC + uint8_t max_mtt_depth[2]; ///< MaxMttDepthY, MaxMttDepthC + uint8_t cu_qp_delta_subdiv; ///< CuQpDeltaSubdiv + uint8_t cu_chroma_qp_offset_subdiv; ///< CuChromaQpOffsetSubdiv + + // entries + uint32_t entry_point_start_ctu[VVC_MAX_ENTRY_POINTS]; ///< entry point start in ctu_addr +} VVCSH; + +struct VVCContext; + +int ff_vvc_decode_frame_ps(VVCFrameParamSets *fps, struct VVCContext *s); +int ff_vvc_decode_aps(VVCParamSets *ps, const CodedBitstreamUnit *unit); +int ff_vvc_decode_sh(VVCSH *sh, const VVCFrameParamSets *ps, const CodedBitstreamUnit *unit); +void ff_vvc_frame_ps_free(VVCFrameParamSets *fps); +void ff_vvc_ps_uninit(VVCParamSets *ps); + +#endif /* AVCODEC_VVC_PS_H */ |