hevc: rename hevc.[ch] to hevcdec.[ch]

This is more consistent with the rest of libav and frees up the hevc.h
name for decoder-independent shared declarations.

1 files changed, 0 insertions, 1016 deletions

diff --git a/libavcodec/hevc.h b/libavcodec/hevc.h
deleted file mode 100644
index d15af71..0000000
--- a/libavcodec/hevc.h
+++ /dev/null
@@ -1,1016 +0,0 @@
-/*
- * HEVC video decoder
- *
- * Copyright (C) 2012 - 2013 Guillaume Martres
- *
- * This file is part of Libav.
- *
- * Libav 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.
- *
- * Libav 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 Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_HEVC_H
-#define AVCODEC_HEVC_H
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include "libavutil/buffer.h"
-#include "libavutil/md5.h"
-
-#include "avcodec.h"
-#include "bswapdsp.h"
-#include "cabac.h"
-#include "get_bits.h"
-#include "h2645_parse.h"
-#include "hevcdsp.h"
-#include "internal.h"
-#include "thread.h"
-#include "videodsp.h"
-
-#define MAX_DPB_SIZE 16 // A.4.1
-#define MAX_REFS 16
-
-/**
- * 7.4.2.1
- */
-#define MAX_SUB_LAYERS 7
-#define MAX_VPS_COUNT 16
-#define MAX_SPS_COUNT 32
-#define MAX_PPS_COUNT 256
-#define MAX_SHORT_TERM_RPS_COUNT 64
-#define MAX_CU_SIZE 128
-
-//TODO: check if this is really the maximum
-#define MAX_TRANSFORM_DEPTH 5
-
-#define MAX_TB_SIZE 32
-#define MAX_PB_SIZE 64
-#define MAX_LOG2_CTB_SIZE 6
-#define MAX_QP 51
-#define DEFAULT_INTRA_TC_OFFSET 2
-
-#define HEVC_CONTEXTS 183
-
-#define MRG_MAX_NUM_CANDS     5
-
-#define L0 0
-#define L1 1
-
-#define EPEL_EXTRA_BEFORE 1
-#define EPEL_EXTRA_AFTER  2
-#define EPEL_EXTRA        3
-
-#define EDGE_EMU_BUFFER_STRIDE 80
-
-/**
- * Value of the luma sample at position (x, y) in the 2D array tab.
- */
-#define SAMPLE(tab, x, y) ((tab)[(y) * s->sps->width + (x)])
-#define SAMPLE_CTB(tab, x, y) ((tab)[(y) * min_cb_width + (x)])
-
-#define IS_IDR(s) (s->nal_unit_type == NAL_IDR_W_RADL || s->nal_unit_type == NAL_IDR_N_LP)
-#define IS_BLA(s) (s->nal_unit_type == NAL_BLA_W_RADL || s->nal_unit_type == NAL_BLA_W_LP || \
-                   s->nal_unit_type == NAL_BLA_N_LP)
-#define IS_IRAP(s) (s->nal_unit_type >= 16 && s->nal_unit_type <= 23)
-
-#define FFUDIV(a,b) (((a) > 0 ? (a) : (a) - (b) + 1) / (b))
-#define FFUMOD(a,b) ((a) - (b) * FFUDIV(a,b))
-
-/**
- * Table 7-3: NAL unit type codes
- */
-enum NALUnitType {
-    NAL_TRAIL_N    = 0,
-    NAL_TRAIL_R    = 1,
-    NAL_TSA_N      = 2,
-    NAL_TSA_R      = 3,
-    NAL_STSA_N     = 4,
-    NAL_STSA_R     = 5,
-    NAL_RADL_N     = 6,
-    NAL_RADL_R     = 7,
-    NAL_RASL_N     = 8,
-    NAL_RASL_R     = 9,
-    NAL_BLA_W_LP   = 16,
-    NAL_BLA_W_RADL = 17,
-    NAL_BLA_N_LP   = 18,
-    NAL_IDR_W_RADL = 19,
-    NAL_IDR_N_LP   = 20,
-    NAL_CRA_NUT    = 21,
-    NAL_VPS        = 32,
-    NAL_SPS        = 33,
-    NAL_PPS        = 34,
-    NAL_AUD        = 35,
-    NAL_EOS_NUT    = 36,
-    NAL_EOB_NUT    = 37,
-    NAL_FD_NUT     = 38,
-    NAL_SEI_PREFIX = 39,
-    NAL_SEI_SUFFIX = 40,
-};
-
-enum RPSType {
-    ST_CURR_BEF = 0,
-    ST_CURR_AFT,
-    ST_FOLL,
-    LT_CURR,
-    LT_FOLL,
-    NB_RPS_TYPE,
-};
-
-enum SliceType {
-    B_SLICE = 0,
-    P_SLICE = 1,
-    I_SLICE = 2,
-};
-
-enum SyntaxElement {
-    SAO_MERGE_FLAG = 0,
-    SAO_TYPE_IDX,
-    SAO_EO_CLASS,
-    SAO_BAND_POSITION,
-    SAO_OFFSET_ABS,
-    SAO_OFFSET_SIGN,
-    END_OF_SLICE_FLAG,
-    SPLIT_CODING_UNIT_FLAG,
-    CU_TRANSQUANT_BYPASS_FLAG,
-    SKIP_FLAG,
-    CU_QP_DELTA,
-    PRED_MODE_FLAG,
-    PART_MODE,
-    PCM_FLAG,
-    PREV_INTRA_LUMA_PRED_FLAG,
-    MPM_IDX,
-    REM_INTRA_LUMA_PRED_MODE,
-    INTRA_CHROMA_PRED_MODE,
-    MERGE_FLAG,
-    MERGE_IDX,
-    INTER_PRED_IDC,
-    REF_IDX_L0,
-    REF_IDX_L1,
-    ABS_MVD_GREATER0_FLAG,
-    ABS_MVD_GREATER1_FLAG,
-    ABS_MVD_MINUS2,
-    MVD_SIGN_FLAG,
-    MVP_LX_FLAG,
-    NO_RESIDUAL_DATA_FLAG,
-    SPLIT_TRANSFORM_FLAG,
-    CBF_LUMA,
-    CBF_CB_CR,
-    TRANSFORM_SKIP_FLAG,
-    LAST_SIGNIFICANT_COEFF_X_PREFIX,
-    LAST_SIGNIFICANT_COEFF_Y_PREFIX,
-    LAST_SIGNIFICANT_COEFF_X_SUFFIX,
-    LAST_SIGNIFICANT_COEFF_Y_SUFFIX,
-    SIGNIFICANT_COEFF_GROUP_FLAG,
-    SIGNIFICANT_COEFF_FLAG,
-    COEFF_ABS_LEVEL_GREATER1_FLAG,
-    COEFF_ABS_LEVEL_GREATER2_FLAG,
-    COEFF_ABS_LEVEL_REMAINING,
-    COEFF_SIGN_FLAG,
-};
-
-enum PartMode {
-    PART_2Nx2N = 0,
-    PART_2NxN  = 1,
-    PART_Nx2N  = 2,
-    PART_NxN   = 3,
-    PART_2NxnU = 4,
-    PART_2NxnD = 5,
-    PART_nLx2N = 6,
-    PART_nRx2N = 7,
-};
-
-enum PredMode {
-    MODE_INTER = 0,
-    MODE_INTRA,
-    MODE_SKIP,
-};
-
-enum InterPredIdc {
-    PRED_L0 = 0,
-    PRED_L1,
-    PRED_BI,
-};
-
-enum IntraPredMode {
-    INTRA_PLANAR = 0,
-    INTRA_DC,
-    INTRA_ANGULAR_2,
-    INTRA_ANGULAR_3,
-    INTRA_ANGULAR_4,
-    INTRA_ANGULAR_5,
-    INTRA_ANGULAR_6,
-    INTRA_ANGULAR_7,
-    INTRA_ANGULAR_8,
-    INTRA_ANGULAR_9,
-    INTRA_ANGULAR_10,
-    INTRA_ANGULAR_11,
-    INTRA_ANGULAR_12,
-    INTRA_ANGULAR_13,
-    INTRA_ANGULAR_14,
-    INTRA_ANGULAR_15,
-    INTRA_ANGULAR_16,
-    INTRA_ANGULAR_17,
-    INTRA_ANGULAR_18,
-    INTRA_ANGULAR_19,
-    INTRA_ANGULAR_20,
-    INTRA_ANGULAR_21,
-    INTRA_ANGULAR_22,
-    INTRA_ANGULAR_23,
-    INTRA_ANGULAR_24,
-    INTRA_ANGULAR_25,
-    INTRA_ANGULAR_26,
-    INTRA_ANGULAR_27,
-    INTRA_ANGULAR_28,
-    INTRA_ANGULAR_29,
-    INTRA_ANGULAR_30,
-    INTRA_ANGULAR_31,
-    INTRA_ANGULAR_32,
-    INTRA_ANGULAR_33,
-    INTRA_ANGULAR_34,
-};
-
-enum SAOType {
-    SAO_NOT_APPLIED = 0,
-    SAO_BAND,
-    SAO_EDGE,
-};
-
-enum SAOEOClass {
-    SAO_EO_HORIZ = 0,
-    SAO_EO_VERT,
-    SAO_EO_135D,
-    SAO_EO_45D,
-};
-
-enum ScanType {
-    SCAN_DIAG = 0,
-    SCAN_HORIZ,
-    SCAN_VERT,
-};
-
-typedef struct ShortTermRPS {
-    unsigned int num_negative_pics;
-    int num_delta_pocs;
-    int rps_idx_num_delta_pocs;
-    int32_t delta_poc[32];
-    uint8_t used[32];
-} ShortTermRPS;
-
-typedef struct LongTermRPS {
-    int     poc[32];
-    uint8_t used[32];
-    uint8_t nb_refs;
-} LongTermRPS;
-
-typedef struct RefPicList {
-    struct HEVCFrame *ref[MAX_REFS];
-    int list[MAX_REFS];
-    int isLongTerm[MAX_REFS];
-    int nb_refs;
-} RefPicList;
-
-typedef struct RefPicListTab {
-    RefPicList refPicList[2];
-} RefPicListTab;
-
-typedef struct HEVCWindow {
-    unsigned int left_offset;
-    unsigned int right_offset;
-    unsigned int top_offset;
-    unsigned int bottom_offset;
-} HEVCWindow;
-
-typedef struct VUI {
-    AVRational sar;
-
-    int overscan_info_present_flag;
-    int overscan_appropriate_flag;
-
-    int video_signal_type_present_flag;
-    int video_format;
-    int video_full_range_flag;
-    int colour_description_present_flag;
-    uint8_t colour_primaries;
-    uint8_t transfer_characteristic;
-    uint8_t matrix_coeffs;
-
-    int chroma_loc_info_present_flag;
-    int chroma_sample_loc_type_top_field;
-    int chroma_sample_loc_type_bottom_field;
-    int neutra_chroma_indication_flag;
-
-    int field_seq_flag;
-    int frame_field_info_present_flag;
-
-    int default_display_window_flag;
-    HEVCWindow def_disp_win;
-
-    int vui_timing_info_present_flag;
-    uint32_t vui_num_units_in_tick;
-    uint32_t vui_time_scale;
-    int vui_poc_proportional_to_timing_flag;
-    int vui_num_ticks_poc_diff_one_minus1;
-    int vui_hrd_parameters_present_flag;
-
-    int bitstream_restriction_flag;
-    int tiles_fixed_structure_flag;
-    int motion_vectors_over_pic_boundaries_flag;
-    int restricted_ref_pic_lists_flag;
-    int min_spatial_segmentation_idc;
-    int max_bytes_per_pic_denom;
-    int max_bits_per_min_cu_denom;
-    int log2_max_mv_length_horizontal;
-    int log2_max_mv_length_vertical;
-} VUI;
-
-typedef struct PTLCommon {
-    uint8_t profile_space;
-    uint8_t tier_flag;
-    uint8_t profile_idc;
-    uint8_t profile_compatibility_flag[32];
-    uint8_t level_idc;
-    uint8_t progressive_source_flag;
-    uint8_t interlaced_source_flag;
-    uint8_t non_packed_constraint_flag;
-    uint8_t frame_only_constraint_flag;
-} PTLCommon;
-
-typedef struct PTL {
-    PTLCommon general_ptl;
-    PTLCommon sub_layer_ptl[MAX_SUB_LAYERS];
-
-    uint8_t sub_layer_profile_present_flag[MAX_SUB_LAYERS];
-    uint8_t sub_layer_level_present_flag[MAX_SUB_LAYERS];
-} PTL;
-
-typedef struct HEVCVPS {
-    uint8_t vps_temporal_id_nesting_flag;
-    int vps_max_layers;
-    int vps_max_sub_layers; ///< vps_max_temporal_layers_minus1 + 1
-
-    PTL ptl;
-    int vps_sub_layer_ordering_info_present_flag;
-    unsigned int vps_max_dec_pic_buffering[MAX_SUB_LAYERS];
-    unsigned int vps_num_reorder_pics[MAX_SUB_LAYERS];
-    unsigned int vps_max_latency_increase[MAX_SUB_LAYERS];
-    int vps_max_layer_id;
-    int vps_num_layer_sets; ///< vps_num_layer_sets_minus1 + 1
-    uint8_t vps_timing_info_present_flag;
-    uint32_t vps_num_units_in_tick;
-    uint32_t vps_time_scale;
-    uint8_t vps_poc_proportional_to_timing_flag;
-    int vps_num_ticks_poc_diff_one; ///< vps_num_ticks_poc_diff_one_minus1 + 1
-    int vps_num_hrd_parameters;
-} HEVCVPS;
-
-typedef struct ScalingList {
-    /* This is a little wasteful, since sizeID 0 only needs 8 coeffs,
-     * and size ID 3 only has 2 arrays, not 6. */
-    uint8_t sl[4][6][64];
-    uint8_t sl_dc[2][6];
-} ScalingList;
-
-typedef struct HEVCSPS {
-    int vps_id;
-    int chroma_format_idc;
-    uint8_t separate_colour_plane_flag;
-
-    ///< output (i.e. cropped) values
-    int output_width, output_height;
-    HEVCWindow output_window;
-
-    HEVCWindow pic_conf_win;
-
-    int bit_depth;
-    int pixel_shift;
-    enum AVPixelFormat pix_fmt;
-
-    unsigned int log2_max_poc_lsb;
-    int pcm_enabled_flag;
-
-    int max_sub_layers;
-    struct {
-        int max_dec_pic_buffering;
-        int num_reorder_pics;
-        int max_latency_increase;
-    } temporal_layer[MAX_SUB_LAYERS];
-
-    VUI vui;
-    PTL ptl;
-
-    uint8_t scaling_list_enable_flag;
-    ScalingList scaling_list;
-
-    unsigned int nb_st_rps;
-    ShortTermRPS st_rps[MAX_SHORT_TERM_RPS_COUNT];
-
-    uint8_t amp_enabled_flag;
-    uint8_t sao_enabled;
-
-    uint8_t long_term_ref_pics_present_flag;
-    uint16_t lt_ref_pic_poc_lsb_sps[32];
-    uint8_t used_by_curr_pic_lt_sps_flag[32];
-    uint8_t num_long_term_ref_pics_sps;
-
-    struct {
-        uint8_t bit_depth;
-        uint8_t bit_depth_chroma;
-        unsigned int log2_min_pcm_cb_size;
-        unsigned int log2_max_pcm_cb_size;
-        uint8_t loop_filter_disable_flag;
-    } pcm;
-    uint8_t sps_temporal_mvp_enabled_flag;
-    uint8_t sps_strong_intra_smoothing_enable_flag;
-
-    unsigned int log2_min_cb_size;
-    unsigned int log2_diff_max_min_coding_block_size;
-    unsigned int log2_min_tb_size;
-    unsigned int log2_max_trafo_size;
-    unsigned int log2_ctb_size;
-    unsigned int log2_min_pu_size;
-
-    int max_transform_hierarchy_depth_inter;
-    int max_transform_hierarchy_depth_intra;
-
-    ///< coded frame dimension in various units
-    int width;
-    int height;
-    int ctb_width;
-    int ctb_height;
-    int ctb_size;
-    int min_cb_width;
-    int min_cb_height;
-    int min_tb_width;
-    int min_tb_height;
-    int min_pu_width;
-    int min_pu_height;
-
-    int hshift[3];
-    int vshift[3];
-
-    int qp_bd_offset;
-} HEVCSPS;
-
-typedef struct HEVCPPS {
-    unsigned int sps_id; ///< seq_parameter_set_id
-
-    uint8_t sign_data_hiding_flag;
-
-    uint8_t cabac_init_present_flag;
-
-    int num_ref_idx_l0_default_active; ///< num_ref_idx_l0_default_active_minus1 + 1
-    int num_ref_idx_l1_default_active; ///< num_ref_idx_l1_default_active_minus1 + 1
-    int pic_init_qp_minus26;
-
-    uint8_t constrained_intra_pred_flag;
-    uint8_t transform_skip_enabled_flag;
-
-    uint8_t cu_qp_delta_enabled_flag;
-    int diff_cu_qp_delta_depth;
-
-    int cb_qp_offset;
-    int cr_qp_offset;
-    uint8_t pic_slice_level_chroma_qp_offsets_present_flag;
-    uint8_t weighted_pred_flag;
-    uint8_t weighted_bipred_flag;
-    uint8_t output_flag_present_flag;
-    uint8_t transquant_bypass_enable_flag;
-
-    uint8_t dependent_slice_segments_enabled_flag;
-    uint8_t tiles_enabled_flag;
-    uint8_t entropy_coding_sync_enabled_flag;
-
-    int num_tile_columns;   ///< num_tile_columns_minus1 + 1
-    int num_tile_rows;      ///< num_tile_rows_minus1 + 1
-    uint8_t uniform_spacing_flag;
-    uint8_t loop_filter_across_tiles_enabled_flag;
-
-    uint8_t seq_loop_filter_across_slices_enabled_flag;
-
-    uint8_t deblocking_filter_control_present_flag;
-    uint8_t deblocking_filter_override_enabled_flag;
-    uint8_t disable_dbf;
-    int beta_offset;    ///< beta_offset_div2 * 2
-    int tc_offset;      ///< tc_offset_div2 * 2
-
-    uint8_t scaling_list_data_present_flag;
-    ScalingList scaling_list;
-
-    uint8_t lists_modification_present_flag;
-    int log2_parallel_merge_level; ///< log2_parallel_merge_level_minus2 + 2
-    int num_extra_slice_header_bits;
-    uint8_t slice_header_extension_present_flag;
-
-    // Inferred parameters
-    unsigned int *column_width;  ///< ColumnWidth
-    unsigned int *row_height;    ///< RowHeight
-    unsigned int *col_bd;        ///< ColBd
-    unsigned int *row_bd;        ///< RowBd
-    int *col_idxX;
-
-    int *ctb_addr_rs_to_ts; ///< CtbAddrRSToTS
-    int *ctb_addr_ts_to_rs; ///< CtbAddrTSToRS
-    int *tile_id;           ///< TileId
-    int *tile_pos_rs;       ///< TilePosRS
-    int *min_tb_addr_zs;    ///< MinTbAddrZS
-} HEVCPPS;
-
-typedef struct HEVCParamSets {
-    AVBufferRef *vps_list[MAX_VPS_COUNT];
-    AVBufferRef *sps_list[MAX_SPS_COUNT];
-    AVBufferRef *pps_list[MAX_PPS_COUNT];
-
-    /* currently active parameter sets */
-    const HEVCVPS *vps;
-    const HEVCSPS *sps;
-    const HEVCPPS *pps;
-} HEVCParamSets;
-
-typedef struct SliceHeader {
-    unsigned int pps_id;
-
-    ///< address (in raster order) of the first block in the current slice segment
-    unsigned int   slice_segment_addr;
-    ///< address (in raster order) of the first block in the current slice
-    unsigned int   slice_addr;
-
-    enum SliceType slice_type;
-
-    int pic_order_cnt_lsb;
-
-    uint8_t first_slice_in_pic_flag;
-    uint8_t dependent_slice_segment_flag;
-    uint8_t pic_output_flag;
-    uint8_t colour_plane_id;
-
-    ///< RPS coded in the slice header itself is stored here
-    int short_term_ref_pic_set_sps_flag;
-    int short_term_ref_pic_set_size;
-    ShortTermRPS slice_rps;
-    const ShortTermRPS *short_term_rps;
-    int long_term_ref_pic_set_size;
-    LongTermRPS long_term_rps;
-    unsigned int list_entry_lx[2][32];
-
-    uint8_t rpl_modification_flag[2];
-    uint8_t no_output_of_prior_pics_flag;
-    uint8_t slice_temporal_mvp_enabled_flag;
-
-    unsigned int nb_refs[2];
-
-    uint8_t slice_sample_adaptive_offset_flag[3];
-    uint8_t mvd_l1_zero_flag;
-
-    uint8_t cabac_init_flag;
-    uint8_t disable_deblocking_filter_flag; ///< slice_header_disable_deblocking_filter_flag
-    uint8_t slice_loop_filter_across_slices_enabled_flag;
-    uint8_t collocated_list;
-
-    unsigned int collocated_ref_idx;
-
-    int slice_qp_delta;
-    int slice_cb_qp_offset;
-    int slice_cr_qp_offset;
-
-    int beta_offset;    ///< beta_offset_div2 * 2
-    int tc_offset;      ///< tc_offset_div2 * 2
-
-    unsigned int max_num_merge_cand; ///< 5 - 5_minus_max_num_merge_cand
-
-    int num_entry_point_offsets;
-
-    int8_t slice_qp;
-
-    uint8_t luma_log2_weight_denom;
-    int16_t chroma_log2_weight_denom;
-
-    int16_t luma_weight_l0[16];
-    int16_t chroma_weight_l0[16][2];
-    int16_t chroma_weight_l1[16][2];
-    int16_t luma_weight_l1[16];
-
-    int16_t luma_offset_l0[16];
-    int16_t chroma_offset_l0[16][2];
-
-    int16_t luma_offset_l1[16];
-    int16_t chroma_offset_l1[16][2];
-
-    int slice_ctb_addr_rs;
-} SliceHeader;
-
-typedef struct CodingTree {
-    int depth; ///< ctDepth
-} CodingTree;
-
-typedef struct CodingUnit {
-    int x;
-    int y;
-
-    enum PredMode pred_mode;    ///< PredMode
-    enum PartMode part_mode;    ///< PartMode
-
-    // Inferred parameters
-    uint8_t intra_split_flag;   ///< IntraSplitFlag
-    uint8_t max_trafo_depth;    ///< MaxTrafoDepth
-    uint8_t cu_transquant_bypass_flag;
-} CodingUnit;
-
-typedef struct Mv {
-    int16_t x;  ///< horizontal component of motion vector
-    int16_t y;  ///< vertical component of motion vector
-} Mv;
-
-typedef struct MvField {
-    DECLARE_ALIGNED(4, Mv, mv)[2];
-    int8_t ref_idx[2];
-    int8_t pred_flag[2];
-    uint8_t is_intra;
-} MvField;
-
-typedef struct NeighbourAvailable {
-    int cand_bottom_left;
-    int cand_left;
-    int cand_up;
-    int cand_up_left;
-    int cand_up_right;
-    int cand_up_right_sap;
-} NeighbourAvailable;
-
-typedef struct PredictionUnit {
-    int mpm_idx;
-    int rem_intra_luma_pred_mode;
-    uint8_t intra_pred_mode[4];
-    Mv mvd;
-    uint8_t merge_flag;
-    uint8_t intra_pred_mode_c;
-} PredictionUnit;
-
-typedef struct TransformUnit {
-    int cu_qp_delta;
-
-    // Inferred parameters;
-    int cur_intra_pred_mode;
-    uint8_t is_cu_qp_delta_coded;
-} TransformUnit;
-
-typedef struct DBParams {
-    int beta_offset;
-    int tc_offset;
-} DBParams;
-
-#define HEVC_FRAME_FLAG_OUTPUT    (1 << 0)
-#define HEVC_FRAME_FLAG_SHORT_REF (1 << 1)
-#define HEVC_FRAME_FLAG_LONG_REF  (1 << 2)
-
-typedef struct HEVCFrame {
-    AVFrame *frame;
-    ThreadFrame tf;
-    MvField *tab_mvf;
-    RefPicList *refPicList;
-    RefPicListTab **rpl_tab;
-    int ctb_count;
-    int poc;
-    struct HEVCFrame *collocated_ref;
-
-    HEVCWindow window;
-
-    AVBufferRef *tab_mvf_buf;
-    AVBufferRef *rpl_tab_buf;
-    AVBufferRef *rpl_buf;
-
-    AVBufferRef *hwaccel_priv_buf;
-    void *hwaccel_picture_private;
-
-    /**
-     * A sequence counter, so that old frames are output first
-     * after a POC reset
-     */
-    uint16_t sequence;
-
-    /**
-     * A combination of HEVC_FRAME_FLAG_*
-     */
-    uint8_t flags;
-} HEVCFrame;
-
-struct HEVCContext;
-
-typedef struct HEVCPredContext {
-    void (*intra_pred[4])(struct HEVCContext *s, int x0, int y0, int c_idx);
-
-    void (*pred_planar[4])(uint8_t *src, const uint8_t *top,
-                           const uint8_t *left, ptrdiff_t stride);
-    void (*pred_dc)(uint8_t *src, const uint8_t *top, const uint8_t *left,
-                    ptrdiff_t stride, int log2_size, int c_idx);
-    void (*pred_angular[4])(uint8_t *src, const uint8_t *top,
-                            const uint8_t *left, ptrdiff_t stride,
-                            int c_idx, int mode);
-} HEVCPredContext;
-
-typedef struct HEVCLocalContext {
-    DECLARE_ALIGNED(16, int16_t, mc_buffer[(MAX_PB_SIZE + 24) * MAX_PB_SIZE]);
-    uint8_t cabac_state[HEVC_CONTEXTS];
-
-    uint8_t first_qp_group;
-
-    GetBitContext gb;
-    CABACContext cc;
-
-    int8_t qp_y;
-    int8_t curr_qp_y;
-
-    TransformUnit tu;
-
-    uint8_t ctb_left_flag;
-    uint8_t ctb_up_flag;
-    uint8_t ctb_up_right_flag;
-    uint8_t ctb_up_left_flag;
-    int     start_of_tiles_x;
-    int     end_of_tiles_x;
-    int     end_of_tiles_y;
-    /* +7 is for subpixel interpolation, *2 for high bit depths */
-    DECLARE_ALIGNED(32, uint8_t, edge_emu_buffer)[(MAX_PB_SIZE + 7) * EDGE_EMU_BUFFER_STRIDE * 2];
-    CodingTree ct;
-    CodingUnit cu;
-    PredictionUnit pu;
-    NeighbourAvailable na;
-
-#define BOUNDARY_LEFT_SLICE     (1 << 0)
-#define BOUNDARY_LEFT_TILE      (1 << 1)
-#define BOUNDARY_UPPER_SLICE    (1 << 2)
-#define BOUNDARY_UPPER_TILE     (1 << 3)
-    /* properties of the boundary of the current CTB for the purposes
-     * of the deblocking filter */
-    int boundary_flags;
-} HEVCLocalContext;
-
-typedef struct HEVCContext {
-    const AVClass *c;  // needed by private avoptions
-    AVCodecContext *avctx;
-
-    HEVCLocalContext HEVClc;
-
-    uint8_t cabac_state[HEVC_CONTEXTS];
-
-    /** 1 if the independent slice segment header was successfully parsed */
-    uint8_t slice_initialized;
-
-    AVFrame *frame;
-    AVFrame *sao_frame;
-    AVFrame *tmp_frame;
-    AVFrame *output_frame;
-
-    HEVCParamSets ps;
-
-    AVBufferPool *tab_mvf_pool;
-    AVBufferPool *rpl_tab_pool;
-
-    ///< candidate references for the current frame
-    RefPicList rps[5];
-
-    SliceHeader sh;
-    SAOParams *sao;
-    DBParams *deblock;
-    enum NALUnitType nal_unit_type;
-    int temporal_id;  ///< temporal_id_plus1 - 1
-    HEVCFrame *ref;
-    HEVCFrame DPB[32];
-    int poc;
-    int pocTid0;
-    int slice_idx; ///< number of the slice being currently decoded
-    int eos;       ///< current packet contains an EOS/EOB NAL
-    int max_ra;
-    int bs_width;
-    int bs_height;
-
-    int is_decoded;
-
-    HEVCPredContext hpc;
-    HEVCDSPContext hevcdsp;
-    VideoDSPContext vdsp;
-    BswapDSPContext bdsp;
-    int8_t *qp_y_tab;
-    uint8_t *horizontal_bs;
-    uint8_t *vertical_bs;
-
-    int32_t *tab_slice_address;
-
-    //  CU
-    uint8_t *skip_flag;
-    uint8_t *tab_ct_depth;
-    // PU
-    uint8_t *tab_ipm;
-
-    uint8_t *cbf_luma; // cbf_luma of colocated TU
-    uint8_t *is_pcm;
-
-    // CTB-level flags affecting loop filter operation
-    uint8_t *filter_slice_edges;
-
-    /** used on BE to byteswap the lines for checksumming */
-    uint8_t *checksum_buf;
-    int      checksum_buf_size;
-
-    /**
-     * Sequence counters for decoded and output frames, so that old
-     * frames are output first after a POC reset
-     */
-    uint16_t seq_decode;
-    uint16_t seq_output;
-
-    H2645Packet pkt;
-    // type of the first VCL NAL of the current frame
-    enum NALUnitType first_nal_type;
-
-    // for checking the frame checksums
-    struct AVMD5 *md5_ctx;
-    uint8_t       md5[3][16];
-    uint8_t is_md5;
-
-    uint8_t context_initialized;
-    uint8_t is_nalff;       ///< this flag is != 0 if bitstream is encapsulated
-                            ///< as a format defined in 14496-15
-    int apply_defdispwin;
-
-    int nal_length_size;    ///< Number of bytes used for nal length (1, 2 or 4)
-    int nuh_layer_id;
-
-    /** frame packing arrangement variables */
-    int sei_frame_packing_present;
-    int frame_packing_arrangement_type;
-    int content_interpretation_type;
-    int quincunx_subsampling;
-
-    /** display orientation */
-    int sei_display_orientation_present;
-    int sei_anticlockwise_rotation;
-    int sei_hflip, sei_vflip;
-} HEVCContext;
-
-int ff_hevc_decode_short_term_rps(GetBitContext *gb, AVCodecContext *avctx,
-                                  ShortTermRPS *rps, const HEVCSPS *sps, int is_slice_header);
-
-/**
- * Parse the SPS from the bitstream into the provided HEVCSPS struct.
- *
- * @param sps_id the SPS id will be written here
- * @param apply_defdispwin if set 1, the default display window from the VUI
- *                         will be applied to the video dimensions
- * @param vps_list if non-NULL, this function will validate that the SPS refers
- *                 to an existing VPS
- */
-int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
-                      int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx);
-
-int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx,
-                           HEVCParamSets *ps);
-int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx,
-                           HEVCParamSets *ps, int apply_defdispwin);
-int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
-                           HEVCParamSets *ps);
-int ff_hevc_decode_nal_sei(HEVCContext *s);
-
-/**
- * Mark all frames in DPB as unused for reference.
- */
-void ff_hevc_clear_refs(HEVCContext *s);
-
-/**
- * Drop all frames currently in DPB.
- */
-void ff_hevc_flush_dpb(HEVCContext *s);
-
-/**
- * Compute POC of the current frame and return it.
- */
-int ff_hevc_compute_poc(HEVCContext *s, int poc_lsb);
-
-RefPicList *ff_hevc_get_ref_list(HEVCContext *s, HEVCFrame *frame,
-                                 int x0, int y0);
-
-/**
- * Construct the reference picture sets for the current frame.
- */
-int ff_hevc_frame_rps(HEVCContext *s);
-
-/**
- * Construct the reference picture list(s) for the current slice.
- */
-int ff_hevc_slice_rpl(HEVCContext *s);
-
-void ff_hevc_save_states(HEVCContext *s, int ctb_addr_ts);
-void ff_hevc_cabac_init(HEVCContext *s, int ctb_addr_ts);
-int ff_hevc_sao_merge_flag_decode(HEVCContext *s);
-int ff_hevc_sao_type_idx_decode(HEVCContext *s);
-int ff_hevc_sao_band_position_decode(HEVCContext *s);
-int ff_hevc_sao_offset_abs_decode(HEVCContext *s);
-int ff_hevc_sao_offset_sign_decode(HEVCContext *s);
-int ff_hevc_sao_eo_class_decode(HEVCContext *s);
-int ff_hevc_end_of_slice_flag_decode(HEVCContext *s);
-int ff_hevc_cu_transquant_bypass_flag_decode(HEVCContext *s);
-int ff_hevc_skip_flag_decode(HEVCContext *s, int x0, int y0,
-                             int x_cb, int y_cb);
-int ff_hevc_pred_mode_decode(HEVCContext *s);
-int ff_hevc_split_coding_unit_flag_decode(HEVCContext *s, int ct_depth,
-                                          int x0, int y0);
-int ff_hevc_part_mode_decode(HEVCContext *s, int log2_cb_size);
-int ff_hevc_pcm_flag_decode(HEVCContext *s);
-int ff_hevc_prev_intra_luma_pred_flag_decode(HEVCContext *s);
-int ff_hevc_mpm_idx_decode(HEVCContext *s);
-int ff_hevc_rem_intra_luma_pred_mode_decode(HEVCContext *s);
-int ff_hevc_intra_chroma_pred_mode_decode(HEVCContext *s);
-int ff_hevc_merge_idx_decode(HEVCContext *s);
-int ff_hevc_merge_flag_decode(HEVCContext *s);
-int ff_hevc_inter_pred_idc_decode(HEVCContext *s, int nPbW, int nPbH);
-int ff_hevc_ref_idx_lx_decode(HEVCContext *s, int num_ref_idx_lx);
-int ff_hevc_mvp_lx_flag_decode(HEVCContext *s);
-int ff_hevc_no_residual_syntax_flag_decode(HEVCContext *s);
-int ff_hevc_abs_mvd_greater0_flag_decode(HEVCContext *s);
-int ff_hevc_abs_mvd_greater1_flag_decode(HEVCContext *s);
-int ff_hevc_mvd_decode(HEVCContext *s);
-int ff_hevc_mvd_sign_flag_decode(HEVCContext *s);
-int ff_hevc_split_transform_flag_decode(HEVCContext *s, int log2_trafo_size);
-int ff_hevc_cbf_cb_cr_decode(HEVCContext *s, int trafo_depth);
-int ff_hevc_cbf_luma_decode(HEVCContext *s, int trafo_depth);
-int ff_hevc_transform_skip_flag_decode(HEVCContext *s, int c_idx);
-int ff_hevc_last_significant_coeff_x_prefix_decode(HEVCContext *s, int c_idx,
-                                                   int log2_size);
-int ff_hevc_last_significant_coeff_y_prefix_decode(HEVCContext *s, int c_idx,
-                                                   int log2_size);
-int ff_hevc_last_significant_coeff_suffix_decode(HEVCContext *s,
-                                                 int last_significant_coeff_prefix);
-int ff_hevc_significant_coeff_group_flag_decode(HEVCContext *s, int c_idx,
-                                                int ctx_cg);
-int ff_hevc_significant_coeff_flag_decode(HEVCContext *s, int c_idx, int x_c,
-                                          int y_c, int log2_trafo_size,
-                                          int scan_idx, int prev_sig);
-int ff_hevc_coeff_abs_level_greater1_flag_decode(HEVCContext *s, int c_idx,
-                                                 int ctx_set);
-int ff_hevc_coeff_abs_level_greater2_flag_decode(HEVCContext *s, int c_idx,
-                                                 int inc);
-int ff_hevc_coeff_abs_level_remaining(HEVCContext *s, int base_level,
-                                      int rc_rice_param);
-int ff_hevc_coeff_sign_flag(HEVCContext *s, uint8_t nb);
-
-/**
- * Get the number of candidate references for the current frame.
- */
-int ff_hevc_frame_nb_refs(HEVCContext *s);
-
-int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc);
-
-/**
- * Find next frame in output order and put a reference to it in frame.
- * @return 1 if a frame was output, 0 otherwise
- */
-int ff_hevc_output_frame(HEVCContext *s, AVFrame *frame, int flush);
-
-void ff_hevc_unref_frame(HEVCContext *s, HEVCFrame *frame, int flags);
-
-void ff_hevc_set_neighbour_available(HEVCContext *s, int x0, int y0,
-                                     int nPbW, int nPbH);
-void ff_hevc_luma_mv_merge_mode(HEVCContext *s, int x0, int y0,
-                                int nPbW, int nPbH, int log2_cb_size,
-                                int part_idx, int merge_idx, MvField *mv);
-void ff_hevc_luma_mv_mvp_mode(HEVCContext *s, int x0, int y0,
-                              int nPbW, int nPbH, int log2_cb_size,
-                              int part_idx, int merge_idx,
-                              MvField *mv, int mvp_lx_flag, int LX);
-void ff_hevc_set_qPy(HEVCContext *s, int xC, int yC, int xBase, int yBase,
-                     int log2_cb_size);
-void ff_hevc_deblocking_boundary_strengths(HEVCContext *s, int x0, int y0,
-                                           int log2_trafo_size);
-int ff_hevc_cu_qp_delta_sign_flag(HEVCContext *s);
-int ff_hevc_cu_qp_delta_abs(HEVCContext *s);
-void ff_hevc_hls_filter(HEVCContext *s, int x, int y);
-void ff_hevc_hls_filters(HEVCContext *s, int x_ctb, int y_ctb, int ctb_size);
-
-void ff_hevc_pps_free(HEVCPPS **ppps);
-
-void ff_hevc_pred_init(HEVCPredContext *hpc, int bit_depth);
-
-int ff_hevc_encode_nal_vps(HEVCVPS *vps, unsigned int id,
-                           uint8_t *buf, int buf_size);
-
-extern const uint8_t ff_hevc_qpel_extra_before[4];
-extern const uint8_t ff_hevc_qpel_extra_after[4];
-extern const uint8_t ff_hevc_qpel_extra[4];
-
-extern const uint8_t ff_hevc_diag_scan4x4_x[16];
-extern const uint8_t ff_hevc_diag_scan4x4_y[16];
-extern const uint8_t ff_hevc_diag_scan8x8_x[64];
-extern const uint8_t ff_hevc_diag_scan8x8_y[64];
-
-#endif /* AVCODEC_HEVC_H */