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249 lines
8.0 KiB
C
249 lines
8.0 KiB
C
/*
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* VVC video decoder
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*
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* Copyright (C) 2021 Nuo Mi
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* Copyright (C) 2022 Xu Mu
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_VVC_DEC_H
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#define AVCODEC_VVC_DEC_H
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#include "libavcodec/videodsp.h"
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#include "libavcodec/vvc.h"
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#include "ps.h"
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#include "dsp.h"
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#define LUMA 0
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#define CHROMA 1
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#define CB 1
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#define CR 2
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#define JCBCR 3
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#define MIN_TU_LOG2 2 ///< MinTbLog2SizeY
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#define MIN_PU_LOG2 2
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#define L0 0
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#define L1 1
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typedef struct VVCRefPic {
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struct VVCFrame *ref;
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int poc;
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int is_lt; // is long term reference
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// for RPR
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int is_scaled; ///< RprConstraintsActiveFlag
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int scale[2]; ///< RefPicScale[]
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} VVCRefPic;
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typedef struct RefPicList {
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VVCRefPic refs[VVC_MAX_REF_ENTRIES];
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int nb_refs;
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} RefPicList;
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typedef struct RefPicListTab {
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RefPicList refPicList[2];
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} RefPicListTab;
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typedef struct VVCWindow {
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int16_t left_offset;
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int16_t right_offset;
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int16_t top_offset;
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int16_t bottom_offset;
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} VVCWindow;
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typedef struct VVCFrame {
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struct AVFrame *frame;
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const VVCSPS *sps; ///< RefStruct reference
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const VVCPPS *pps; ///< RefStruct reference
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struct MvField *tab_dmvr_mvf; ///< RefStruct reference
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RefPicListTab **rpl_tab; ///< RefStruct reference
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RefPicListTab *rpl; ///< RefStruct reference
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int nb_rpl_elems;
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int ctb_count;
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int poc;
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//for RPR
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VVCWindow scaling_win; ///< pps_scaling_win_left_offset * SubWithC, pps_scaling_win_right_offset * SubWithC,
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///< pps_scaling_win_top_offset * SubHeigtC, pps_scaling_win_bottom_offset * SubHiehgtC
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int ref_width; ///< CurrPicScalWinWidthL
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int ref_height; ///< CurrPicScalWinHeightL
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struct VVCFrame *collocated_ref;
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struct FrameProgress *progress; ///< RefStruct reference
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/**
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* A sequence counter, so that old frames are output first
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* after a POC reset
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*/
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uint16_t sequence;
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/**
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* A combination of VVC_FRAME_FLAG_*
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*/
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uint8_t flags;
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} VVCFrame;
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typedef struct SliceContext {
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int slice_idx;
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VVCSH sh;
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struct EntryPoint *eps;
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int nb_eps;
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RefPicList *rpl;
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void *ref; ///< RefStruct reference, backing slice data
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} SliceContext;
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typedef struct VVCFrameContext {
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void *log_ctx;
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// +1 for the current frame
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VVCFrame DPB[VVC_MAX_DPB_SIZE + 1];
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struct AVFrame *frame;
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struct AVFrame *output_frame;
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VVCFrameParamSets ps;
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SliceContext **slices;
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int nb_slices;
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int nb_slices_allocated;
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VVCFrame *ref;
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VVCDSPContext vvcdsp;
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VideoDSPContext vdsp;
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struct VVCFrameThread *ft;
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uint64_t decode_order;
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struct FFRefStructPool *tab_dmvr_mvf_pool;
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struct FFRefStructPool *rpl_tab_pool;
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struct FFRefStructPool *cu_pool;
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struct FFRefStructPool *tu_pool;
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struct {
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int16_t *slice_idx;
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DBParams *deblock;
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struct SAOParams *sao;
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struct ALFParams *alf;
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int *cb_pos_x[2]; ///< CbPosX[][][]
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int *cb_pos_y[2]; ///< CbPosY[][][]
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uint8_t *cb_width[2]; ///< CbWidth[][][]
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uint8_t *cb_height[2]; ///< CbHeight[][][]
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uint8_t *cqt_depth[2]; ///< CqtDepth[][][]
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int8_t *qp[VVC_MAX_SAMPLE_ARRAYS];
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uint8_t *skip; ///< CuSkipFlag[][]
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uint8_t *ispmf; ///< intra_sub_partitions_mode_flag
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uint8_t *msm[2]; ///< MttSplitMode[][][] in 32 pixels
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uint8_t *imf; ///< IntraMipFlag[][]
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uint8_t *imtf; ///< intra_mip_transposed_flag[][]
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uint8_t *imm; ///< intra_mip_mode[][]
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uint8_t *ipm; ///< IntraPredModeY[][]
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uint8_t *cpm[2]; ///< CuPredMode[][][]
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uint8_t *msf; ///< MergeSubblockFlag[][]
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uint8_t *iaf; ///< InterAffineFlag[][]
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uint8_t *mmi; ///< MotionModelIdc[][]
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struct Mv *cp_mv[2]; ///< CpMvLX[][][][MAX_CONTROL_POINTS];
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struct MvField *mvf; ///< MvDmvrL0, MvDmvrL1
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uint8_t *tu_coded_flag[VVC_MAX_SAMPLE_ARRAYS]; ///< tu_y_coded_flag[][], tu_cb_coded_flag[][], tu_cr_coded_flag[][]
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uint8_t *tu_joint_cbcr_residual_flag; ///< tu_joint_cbcr_residual_flag[][]
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int *tb_pos_x0[2];
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int *tb_pos_y0[2];
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uint8_t *tb_width[2];
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uint8_t *tb_height[2];
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uint8_t *pcmf[2];
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uint8_t *bs[2][VVC_MAX_SAMPLE_ARRAYS]; ///< horizontal, vertical boundary filtering strength
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uint8_t *max_len_p[2]; ///< horizontal, vertical maxFilterLengthPs for luma
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uint8_t *max_len_q[2]; ///< horizontal, vertical maxFilterLengthQs for luma
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uint8_t *sao_pixel_buffer_h[VVC_MAX_SAMPLE_ARRAYS];
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uint8_t *sao_pixel_buffer_v[VVC_MAX_SAMPLE_ARRAYS];
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uint8_t *alf_pixel_buffer_h[VVC_MAX_SAMPLE_ARRAYS][2];
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uint8_t *alf_pixel_buffer_v[VVC_MAX_SAMPLE_ARRAYS][2];
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int *coeffs;
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struct CTU *ctus;
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struct CodingUnit **cus;
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uint8_t *ibc_vir_buf[VVC_MAX_SAMPLE_ARRAYS]; ///< IbcVirBuf[]
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//used in arrays_init only
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struct {
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int ctu_count;
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int ctu_size;
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int pic_size_in_min_cb;
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int pic_size_in_min_pu;
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int pic_size_in_min_tu;
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int ctu_width;
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int ctu_height;
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int width;
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int height;
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int chroma_format_idc;
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int pixel_shift;
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int ibc_buffer_width; ///< IbcBufWidth
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} sz;
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} tab;
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} VVCFrameContext;
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typedef struct VVCContext {
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struct AVCodecContext *avctx;
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CodedBitstreamContext *cbc;
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CodedBitstreamFragment current_frame;
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VVCParamSets ps;
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int temporal_id; ///< temporal_id_plus1 - 1
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int poc_tid0;
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int eos; ///< current packet contains an EOS/EOB NAL
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int last_eos; ///< last packet contains an EOS/EOB NAL
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enum VVCNALUnitType vcl_unit_type;
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int no_output_before_recovery_flag; ///< NoOutputBeforeRecoveryFlag
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int gdr_recovery_point_poc; ///< recoveryPointPocVal
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/**
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* Sequence counters for decoded and output frames, so that old
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* frames are output first after a POC reset
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*/
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uint16_t seq_decode;
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uint16_t seq_output;
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struct AVExecutor *executor;
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VVCFrameContext *fcs;
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int nb_fcs;
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uint64_t nb_frames; ///< processed frames
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int nb_delayed; ///< delayed frames
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} VVCContext ;
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#endif /* AVCODEC_VVC_DEC_H */
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