4 * Copyright (C) 2012 - 2013 Guillaume Martres
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #ifndef AVCODEC_HEVC_H
24 #define AVCODEC_HEVC_H
26 #include "libavutil/buffer.h"
27 #include "libavutil/md5.h"
39 #define MAX_DPB_SIZE 16 // A.4.1
42 #define MAX_NB_THREADS 16
43 #define SHIFT_CTB_WPP 2
48 #define MAX_SUB_LAYERS 7
49 #define MAX_VPS_COUNT 16
50 #define MAX_SPS_COUNT 32
51 #define MAX_PPS_COUNT 256
52 #define MAX_SHORT_TERM_RPS_COUNT 64
53 #define MAX_CU_SIZE 128
55 //TODO: check if this is really the maximum
56 #define MAX_TRANSFORM_DEPTH 5
58 #define MAX_TB_SIZE 32
59 #define MAX_PB_SIZE 64
60 #define MAX_LOG2_CTB_SIZE 6
62 #define DEFAULT_INTRA_TC_OFFSET 2
64 #define HEVC_CONTEXTS 183
66 #define MRG_MAX_NUM_CANDS 5
71 #define EPEL_EXTRA_BEFORE 1
72 #define EPEL_EXTRA_AFTER 2
74 #define QPEL_EXTRA_BEFORE 3
75 #define QPEL_EXTRA_AFTER 4
78 #define EDGE_EMU_BUFFER_STRIDE 80
81 * Value of the luma sample at position (x, y) in the 2D array tab.
83 #define SAMPLE(tab, x, y) ((tab)[(y) * s->sps->width + (x)])
84 #define SAMPLE_CTB(tab, x, y) ((tab)[(y) * min_cb_width + (x)])
85 #define SAMPLE_CBF(tab, x, y) ((tab)[((y) & ((1<<log2_trafo_size)-1)) * MAX_CU_SIZE + ((x) & ((1<<log2_trafo_size)-1))])
87 #define IS_IDR(s) ((s)->nal_unit_type == NAL_IDR_W_RADL || (s)->nal_unit_type == NAL_IDR_N_LP)
88 #define IS_BLA(s) ((s)->nal_unit_type == NAL_BLA_W_RADL || (s)->nal_unit_type == NAL_BLA_W_LP || \
89 (s)->nal_unit_type == NAL_BLA_N_LP)
90 #define IS_IRAP(s) ((s)->nal_unit_type >= 16 && (s)->nal_unit_type <= 23)
93 * Table 7-3: NAL unit type codes
146 SPLIT_CODING_UNIT_FLAG,
147 CU_TRANSQUANT_BYPASS_FLAG,
153 PREV_INTRA_LUMA_PRED_FLAG,
155 REM_INTRA_LUMA_PRED_MODE,
156 INTRA_CHROMA_PRED_MODE,
162 ABS_MVD_GREATER0_FLAG,
163 ABS_MVD_GREATER1_FLAG,
167 NO_RESIDUAL_DATA_FLAG,
168 SPLIT_TRANSFORM_FLAG,
172 LAST_SIGNIFICANT_COEFF_X_PREFIX,
173 LAST_SIGNIFICANT_COEFF_Y_PREFIX,
174 LAST_SIGNIFICANT_COEFF_X_SUFFIX,
175 LAST_SIGNIFICANT_COEFF_Y_SUFFIX,
176 SIGNIFICANT_COEFF_GROUP_FLAG,
177 SIGNIFICANT_COEFF_FLAG,
178 COEFF_ABS_LEVEL_GREATER1_FLAG,
179 COEFF_ABS_LEVEL_GREATER2_FLAG,
180 COEFF_ABS_LEVEL_REMAINING,
271 typedef struct ShortTermRPS {
272 unsigned int num_negative_pics;
274 int32_t delta_poc[32];
278 typedef struct LongTermRPS {
284 typedef struct RefPicList {
285 struct HEVCFrame *ref[MAX_REFS];
287 int isLongTerm[MAX_REFS];
291 typedef struct RefPicListTab {
292 RefPicList refPicList[2];
295 typedef struct HEVCWindow {
305 int overscan_info_present_flag;
306 int overscan_appropriate_flag;
308 int video_signal_type_present_flag;
310 int video_full_range_flag;
311 int colour_description_present_flag;
312 uint8_t colour_primaries;
313 uint8_t transfer_characteristic;
314 uint8_t matrix_coeffs;
316 int chroma_loc_info_present_flag;
317 int chroma_sample_loc_type_top_field;
318 int chroma_sample_loc_type_bottom_field;
319 int neutra_chroma_indication_flag;
322 int frame_field_info_present_flag;
324 int default_display_window_flag;
325 HEVCWindow def_disp_win;
327 int vui_timing_info_present_flag;
328 uint32_t vui_num_units_in_tick;
329 uint32_t vui_time_scale;
330 int vui_poc_proportional_to_timing_flag;
331 int vui_num_ticks_poc_diff_one_minus1;
332 int vui_hrd_parameters_present_flag;
334 int bitstream_restriction_flag;
335 int tiles_fixed_structure_flag;
336 int motion_vectors_over_pic_boundaries_flag;
337 int restricted_ref_pic_lists_flag;
338 int min_spatial_segmentation_idc;
339 int max_bytes_per_pic_denom;
340 int max_bits_per_min_cu_denom;
341 int log2_max_mv_length_horizontal;
342 int log2_max_mv_length_vertical;
345 typedef struct PTLCommon {
346 uint8_t profile_space;
349 uint8_t profile_compatibility_flag[32];
351 uint8_t progressive_source_flag;
352 uint8_t interlaced_source_flag;
353 uint8_t non_packed_constraint_flag;
354 uint8_t frame_only_constraint_flag;
358 PTLCommon general_ptl;
359 PTLCommon sub_layer_ptl[MAX_SUB_LAYERS];
361 uint8_t sub_layer_profile_present_flag[MAX_SUB_LAYERS];
362 uint8_t sub_layer_level_present_flag[MAX_SUB_LAYERS];
365 typedef struct HEVCVPS {
366 uint8_t vps_temporal_id_nesting_flag;
368 int vps_max_sub_layers; ///< vps_max_temporal_layers_minus1 + 1
371 int vps_sub_layer_ordering_info_present_flag;
372 unsigned int vps_max_dec_pic_buffering[MAX_SUB_LAYERS];
373 unsigned int vps_num_reorder_pics[MAX_SUB_LAYERS];
374 unsigned int vps_max_latency_increase[MAX_SUB_LAYERS];
375 int vps_max_layer_id;
376 int vps_num_layer_sets; ///< vps_num_layer_sets_minus1 + 1
377 uint8_t vps_timing_info_present_flag;
378 uint32_t vps_num_units_in_tick;
379 uint32_t vps_time_scale;
380 uint8_t vps_poc_proportional_to_timing_flag;
381 int vps_num_ticks_poc_diff_one; ///< vps_num_ticks_poc_diff_one_minus1 + 1
382 int vps_num_hrd_parameters;
385 typedef struct ScalingList {
386 /* This is a little wasteful, since sizeID 0 only needs 8 coeffs,
387 * and size ID 3 only has 2 arrays, not 6. */
388 uint8_t sl[4][6][64];
392 typedef struct HEVCSPS {
394 int chroma_format_idc;
395 uint8_t separate_colour_plane_flag;
397 ///< output (i.e. cropped) values
398 int output_width, output_height;
399 HEVCWindow output_window;
401 HEVCWindow pic_conf_win;
405 enum AVPixelFormat pix_fmt;
407 unsigned int log2_max_poc_lsb;
408 int pcm_enabled_flag;
412 int max_dec_pic_buffering;
413 int num_reorder_pics;
414 int max_latency_increase;
415 } temporal_layer[MAX_SUB_LAYERS];
420 uint8_t scaling_list_enable_flag;
421 ScalingList scaling_list;
423 unsigned int nb_st_rps;
424 ShortTermRPS st_rps[MAX_SHORT_TERM_RPS_COUNT];
426 uint8_t amp_enabled_flag;
429 uint8_t long_term_ref_pics_present_flag;
430 uint16_t lt_ref_pic_poc_lsb_sps[32];
431 uint8_t used_by_curr_pic_lt_sps_flag[32];
432 uint8_t num_long_term_ref_pics_sps;
436 uint8_t bit_depth_chroma;
437 unsigned int log2_min_pcm_cb_size;
438 unsigned int log2_max_pcm_cb_size;
439 uint8_t loop_filter_disable_flag;
441 uint8_t sps_temporal_mvp_enabled_flag;
442 uint8_t sps_strong_intra_smoothing_enable_flag;
444 unsigned int log2_min_cb_size;
445 unsigned int log2_diff_max_min_coding_block_size;
446 unsigned int log2_min_tb_size;
447 unsigned int log2_max_trafo_size;
448 unsigned int log2_ctb_size;
449 unsigned int log2_min_pu_size;
451 int max_transform_hierarchy_depth_inter;
452 int max_transform_hierarchy_depth_intra;
454 ///< coded frame dimension in various units
474 typedef struct HEVCPPS {
475 unsigned int sps_id; ///< seq_parameter_set_id
477 uint8_t sign_data_hiding_flag;
479 uint8_t cabac_init_present_flag;
481 int num_ref_idx_l0_default_active; ///< num_ref_idx_l0_default_active_minus1 + 1
482 int num_ref_idx_l1_default_active; ///< num_ref_idx_l1_default_active_minus1 + 1
483 int pic_init_qp_minus26;
485 uint8_t constrained_intra_pred_flag;
486 uint8_t transform_skip_enabled_flag;
488 uint8_t cu_qp_delta_enabled_flag;
489 int diff_cu_qp_delta_depth;
493 uint8_t pic_slice_level_chroma_qp_offsets_present_flag;
494 uint8_t weighted_pred_flag;
495 uint8_t weighted_bipred_flag;
496 uint8_t output_flag_present_flag;
497 uint8_t transquant_bypass_enable_flag;
499 uint8_t dependent_slice_segments_enabled_flag;
500 uint8_t tiles_enabled_flag;
501 uint8_t entropy_coding_sync_enabled_flag;
503 int num_tile_columns; ///< num_tile_columns_minus1 + 1
504 int num_tile_rows; ///< num_tile_rows_minus1 + 1
505 uint8_t uniform_spacing_flag;
506 uint8_t loop_filter_across_tiles_enabled_flag;
508 uint8_t seq_loop_filter_across_slices_enabled_flag;
510 uint8_t deblocking_filter_control_present_flag;
511 uint8_t deblocking_filter_override_enabled_flag;
513 int beta_offset; ///< beta_offset_div2 * 2
514 int tc_offset; ///< tc_offset_div2 * 2
516 uint8_t scaling_list_data_present_flag;
517 ScalingList scaling_list;
519 uint8_t lists_modification_present_flag;
520 int log2_parallel_merge_level; ///< log2_parallel_merge_level_minus2 + 2
521 int num_extra_slice_header_bits;
522 uint8_t slice_header_extension_present_flag;
524 // Inferred parameters
525 unsigned int *column_width; ///< ColumnWidth
526 unsigned int *row_height; ///< RowHeight
527 unsigned int *col_bd; ///< ColBd
528 unsigned int *row_bd; ///< RowBd
531 int *ctb_addr_rs_to_ts; ///< CtbAddrRSToTS
532 int *ctb_addr_ts_to_rs; ///< CtbAddrTSToRS
533 int *tile_id; ///< TileId
534 int *tile_pos_rs; ///< TilePosRS
535 int *min_tb_addr_zs; ///< MinTbAddrZS
536 int *min_tb_addr_zs_tab;///< MinTbAddrZS
539 typedef struct SliceHeader {
542 ///< address (in raster order) of the first block in the current slice segment
543 unsigned int slice_segment_addr;
544 ///< address (in raster order) of the first block in the current slice
545 unsigned int slice_addr;
547 enum SliceType slice_type;
549 int pic_order_cnt_lsb;
551 uint8_t first_slice_in_pic_flag;
552 uint8_t dependent_slice_segment_flag;
553 uint8_t pic_output_flag;
554 uint8_t colour_plane_id;
556 ///< RPS coded in the slice header itself is stored here
557 ShortTermRPS slice_rps;
558 const ShortTermRPS *short_term_rps;
559 LongTermRPS long_term_rps;
560 unsigned int list_entry_lx[2][32];
562 uint8_t rpl_modification_flag[2];
563 uint8_t no_output_of_prior_pics_flag;
564 uint8_t slice_temporal_mvp_enabled_flag;
566 unsigned int nb_refs[2];
568 uint8_t slice_sample_adaptive_offset_flag[3];
569 uint8_t mvd_l1_zero_flag;
571 uint8_t cabac_init_flag;
572 uint8_t disable_deblocking_filter_flag; ///< slice_header_disable_deblocking_filter_flag
573 uint8_t slice_loop_filter_across_slices_enabled_flag;
574 uint8_t collocated_list;
576 unsigned int collocated_ref_idx;
579 int slice_cb_qp_offset;
580 int slice_cr_qp_offset;
582 int beta_offset; ///< beta_offset_div2 * 2
583 int tc_offset; ///< tc_offset_div2 * 2
585 unsigned int max_num_merge_cand; ///< 5 - 5_minus_max_num_merge_cand
587 int *entry_point_offset;
590 int num_entry_point_offsets;
594 uint8_t luma_log2_weight_denom;
595 int16_t chroma_log2_weight_denom;
597 int16_t luma_weight_l0[16];
598 int16_t chroma_weight_l0[16][2];
599 int16_t chroma_weight_l1[16][2];
600 int16_t luma_weight_l1[16];
602 int16_t luma_offset_l0[16];
603 int16_t chroma_offset_l0[16][2];
605 int16_t luma_offset_l1[16];
606 int16_t chroma_offset_l1[16][2];
608 int slice_ctb_addr_rs;
611 typedef struct CodingTree {
612 int depth; ///< ctDepth
615 typedef struct CodingUnit {
619 enum PredMode pred_mode; ///< PredMode
620 enum PartMode part_mode; ///< PartMode
622 uint8_t rqt_root_cbf;
626 // Inferred parameters
627 uint8_t intra_split_flag; ///< IntraSplitFlag
628 uint8_t max_trafo_depth; ///< MaxTrafoDepth
629 uint8_t cu_transquant_bypass_flag;
633 int16_t x; ///< horizontal component of motion vector
634 int16_t y; ///< vertical component of motion vector
637 typedef struct MvField {
643 typedef struct NeighbourAvailable {
644 int cand_bottom_left;
649 int cand_up_right_sap;
650 } NeighbourAvailable;
652 typedef struct PredictionUnit {
654 int rem_intra_luma_pred_mode;
655 uint8_t intra_pred_mode[4];
658 uint8_t intra_pred_mode_c;
661 typedef struct TransformTree {
662 uint8_t cbf_cb[MAX_TRANSFORM_DEPTH][MAX_CU_SIZE * MAX_CU_SIZE];
663 uint8_t cbf_cr[MAX_TRANSFORM_DEPTH][MAX_CU_SIZE * MAX_CU_SIZE];
666 // Inferred parameters
667 uint8_t inter_split_flag;
670 typedef struct TransformUnit {
673 // Inferred parameters;
674 int cur_intra_pred_mode;
675 uint8_t is_cu_qp_delta_coded;
678 typedef struct DBParams {
683 #define HEVC_FRAME_FLAG_OUTPUT (1 << 0)
684 #define HEVC_FRAME_FLAG_SHORT_REF (1 << 1)
685 #define HEVC_FRAME_FLAG_LONG_REF (1 << 2)
687 typedef struct HEVCFrame {
691 RefPicList *refPicList;
692 RefPicListTab **rpl_tab;
695 struct HEVCFrame *collocated_ref;
699 AVBufferRef *tab_mvf_buf;
700 AVBufferRef *rpl_tab_buf;
701 AVBufferRef *rpl_buf;
704 * A sequence counter, so that old frames are output first
710 * A combination of HEVC_FRAME_FLAG_*
715 typedef struct HEVCNAL {
716 uint8_t *rbsp_buffer;
717 int rbsp_buffer_size;
723 typedef struct HEVCLocalContext {
724 DECLARE_ALIGNED(16, int16_t, mc_buffer[(MAX_PB_SIZE + 7) * MAX_PB_SIZE]);
725 uint8_t cabac_state[HEVC_CONTEXTS];
727 uint8_t first_qp_group;
740 uint8_t ctb_left_flag;
742 uint8_t ctb_up_right_flag;
743 uint8_t ctb_up_left_flag;
746 /* +7 is for subpixel interpolation, *2 for high bit depths */
747 DECLARE_ALIGNED(32, uint8_t, edge_emu_buffer)[(MAX_PB_SIZE + 7) * EDGE_EMU_BUFFER_STRIDE * 2];
748 DECLARE_ALIGNED(32, uint8_t, edge_emu_buffer2)[(MAX_PB_SIZE + 7) * EDGE_EMU_BUFFER_STRIDE * 2];
753 NeighbourAvailable na;
755 uint8_t slice_or_tiles_left_boundary;
756 uint8_t slice_or_tiles_up_boundary;
759 typedef struct HEVCContext {
760 const AVClass *c; // needed by private avoptions
761 AVCodecContext *avctx;
763 struct HEVCContext *sList[MAX_NB_THREADS];
765 HEVCLocalContext *HEVClcList[MAX_NB_THREADS];
766 HEVCLocalContext *HEVClc;
768 uint8_t threads_type;
769 uint8_t threads_number;
774 uint8_t *cabac_state;
776 /** 1 if the independent slice segment header was successfully parsed */
777 uint8_t slice_initialized;
782 AVFrame *output_frame;
787 AVBufferRef *vps_list[MAX_VPS_COUNT];
788 AVBufferRef *sps_list[MAX_SPS_COUNT];
789 AVBufferRef *pps_list[MAX_PPS_COUNT];
791 AVBufferPool *tab_mvf_pool;
792 AVBufferPool *rpl_tab_pool;
794 ///< candidate references for the current frame
800 enum NALUnitType nal_unit_type;
801 int temporal_id; ///< temporal_id_plus1 - 1
806 int slice_idx; ///< number of the slice being currently decoded
807 int eos; ///< current packet contains an EOS/EOB NAL
808 int last_eos; ///< last packet contains an EOS/EOB NAL
816 HEVCDSPContext hevcdsp;
817 VideoDSPContext vdsp;
818 BswapDSPContext bdsp;
820 uint8_t *split_cu_flag;
821 uint8_t *horizontal_bs;
822 uint8_t *vertical_bs;
824 int32_t *tab_slice_address;
828 uint8_t *tab_ct_depth;
832 uint8_t *cbf_luma; // cbf_luma of colocated TU
835 // CTB-level flags affecting loop filter operation
836 uint8_t *filter_slice_edges;
838 /** used on BE to byteswap the lines for checksumming */
839 uint8_t *checksum_buf;
840 int checksum_buf_size;
843 * Sequence counters for decoded and output frames, so that old
844 * frames are output first after a POC reset
849 int enable_parallel_tiles;
852 int *skipped_bytes_pos;
853 int skipped_bytes_pos_size;
855 int *skipped_bytes_nal;
856 int **skipped_bytes_pos_nal;
857 int *skipped_bytes_pos_size_nal;
864 // type of the first VCL NAL of the current frame
865 enum NALUnitType first_nal_type;
867 // for checking the frame checksums
868 struct AVMD5 *md5_ctx;
872 uint8_t context_initialized;
873 uint8_t is_nalff; ///< this flag is != 0 if bitstream is encapsulated
874 ///< as a format defined in 14496-15
875 int apply_defdispwin;
877 int active_seq_parameter_set_id;
879 int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
882 /** frame packing arrangement variables */
883 int sei_frame_packing_present;
884 int frame_packing_arrangement_type;
885 int content_interpretation_type;
886 int quincunx_subsampling;
891 int ff_hevc_decode_short_term_rps(HEVCContext *s, ShortTermRPS *rps,
892 const HEVCSPS *sps, int is_slice_header);
893 int ff_hevc_decode_nal_vps(HEVCContext *s);
894 int ff_hevc_decode_nal_sps(HEVCContext *s);
895 int ff_hevc_decode_nal_pps(HEVCContext *s);
896 int ff_hevc_decode_nal_sei(HEVCContext *s);
898 int ff_hevc_extract_rbsp(HEVCContext *s, const uint8_t *src, int length,
902 * Mark all frames in DPB as unused for reference.
904 void ff_hevc_clear_refs(HEVCContext *s);
907 * Drop all frames currently in DPB.
909 void ff_hevc_flush_dpb(HEVCContext *s);
912 * Compute POC of the current frame and return it.
914 int ff_hevc_compute_poc(HEVCContext *s, int poc_lsb);
916 RefPicList *ff_hevc_get_ref_list(HEVCContext *s, HEVCFrame *frame,
920 * Construct the reference picture sets for the current frame.
922 int ff_hevc_frame_rps(HEVCContext *s);
925 * Construct the reference picture list(s) for the current slice.
927 int ff_hevc_slice_rpl(HEVCContext *s);
929 void ff_hevc_save_states(HEVCContext *s, int ctb_addr_ts);
930 void ff_hevc_cabac_init(HEVCContext *s, int ctb_addr_ts);
931 int ff_hevc_sao_merge_flag_decode(HEVCContext *s);
932 int ff_hevc_sao_type_idx_decode(HEVCContext *s);
933 int ff_hevc_sao_band_position_decode(HEVCContext *s);
934 int ff_hevc_sao_offset_abs_decode(HEVCContext *s);
935 int ff_hevc_sao_offset_sign_decode(HEVCContext *s);
936 int ff_hevc_sao_eo_class_decode(HEVCContext *s);
937 int ff_hevc_end_of_slice_flag_decode(HEVCContext *s);
938 int ff_hevc_cu_transquant_bypass_flag_decode(HEVCContext *s);
939 int ff_hevc_skip_flag_decode(HEVCContext *s, int x0, int y0,
941 int ff_hevc_pred_mode_decode(HEVCContext *s);
942 int ff_hevc_split_coding_unit_flag_decode(HEVCContext *s, int ct_depth,
944 int ff_hevc_part_mode_decode(HEVCContext *s, int log2_cb_size);
945 int ff_hevc_pcm_flag_decode(HEVCContext *s);
946 int ff_hevc_prev_intra_luma_pred_flag_decode(HEVCContext *s);
947 int ff_hevc_mpm_idx_decode(HEVCContext *s);
948 int ff_hevc_rem_intra_luma_pred_mode_decode(HEVCContext *s);
949 int ff_hevc_intra_chroma_pred_mode_decode(HEVCContext *s);
950 int ff_hevc_merge_idx_decode(HEVCContext *s);
951 int ff_hevc_merge_flag_decode(HEVCContext *s);
952 int ff_hevc_inter_pred_idc_decode(HEVCContext *s, int nPbW, int nPbH);
953 int ff_hevc_ref_idx_lx_decode(HEVCContext *s, int num_ref_idx_lx);
954 int ff_hevc_mvp_lx_flag_decode(HEVCContext *s);
955 int ff_hevc_no_residual_syntax_flag_decode(HEVCContext *s);
956 int ff_hevc_split_transform_flag_decode(HEVCContext *s, int log2_trafo_size);
957 int ff_hevc_cbf_cb_cr_decode(HEVCContext *s, int trafo_depth);
958 int ff_hevc_cbf_luma_decode(HEVCContext *s, int trafo_depth);
959 int ff_hevc_transform_skip_flag_decode(HEVCContext *s, int c_idx);
962 * Get the number of candidate references for the current frame.
964 int ff_hevc_frame_nb_refs(HEVCContext *s);
966 int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc);
969 * Find next frame in output order and put a reference to it in frame.
970 * @return 1 if a frame was output, 0 otherwise
972 int ff_hevc_output_frame(HEVCContext *s, AVFrame *frame, int flush);
974 void ff_hevc_unref_frame(HEVCContext *s, HEVCFrame *frame, int flags);
976 void ff_hevc_set_neighbour_available(HEVCContext *s, int x0, int y0,
978 void ff_hevc_luma_mv_merge_mode(HEVCContext *s, int x0, int y0,
979 int nPbW, int nPbH, int log2_cb_size,
980 int part_idx, int merge_idx, MvField *mv);
981 void ff_hevc_luma_mv_mvp_mode(HEVCContext *s, int x0, int y0,
982 int nPbW, int nPbH, int log2_cb_size,
983 int part_idx, int merge_idx,
984 MvField *mv, int mvp_lx_flag, int LX);
985 void ff_hevc_set_qPy(HEVCContext *s, int xC, int yC, int xBase, int yBase,
987 void ff_hevc_deblocking_boundary_strengths(HEVCContext *s, int x0, int y0,
988 int log2_trafo_size);
989 int ff_hevc_cu_qp_delta_sign_flag(HEVCContext *s);
990 int ff_hevc_cu_qp_delta_abs(HEVCContext *s);
991 void ff_hevc_hls_filter(HEVCContext *s, int x, int y);
992 void ff_hevc_hls_filters(HEVCContext *s, int x_ctb, int y_ctb, int ctb_size);
993 void ff_hevc_hls_residual_coding(HEVCContext *s, int x0, int y0,
994 int log2_trafo_size, enum ScanType scan_idx,
997 void ff_hevc_hls_mvd_coding(HEVCContext *s, int x0, int y0, int log2_cb_size);
1000 extern const uint8_t ff_hevc_qpel_extra_before[4];
1001 extern const uint8_t ff_hevc_qpel_extra_after[4];
1002 extern const uint8_t ff_hevc_qpel_extra[4];
1004 extern const uint8_t ff_hevc_diag_scan4x4_x[16];
1005 extern const uint8_t ff_hevc_diag_scan4x4_y[16];
1006 extern const uint8_t ff_hevc_diag_scan8x8_x[64];
1007 extern const uint8_t ff_hevc_diag_scan8x8_y[64];
1009 #endif /* AVCODEC_HEVC_H */