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_LOG2_CTB_SIZE 6
61 #define DEFAULT_INTRA_TC_OFFSET 2
63 #define HEVC_CONTEXTS 199
65 #define MRG_MAX_NUM_CANDS 5
70 #define EPEL_EXTRA_BEFORE 1
71 #define EPEL_EXTRA_AFTER 2
73 #define QPEL_EXTRA_BEFORE 3
74 #define QPEL_EXTRA_AFTER 4
77 #define EDGE_EMU_BUFFER_STRIDE 80
80 * Value of the luma sample at position (x, y) in the 2D array tab.
82 #define SAMPLE(tab, x, y) ((tab)[(y) * s->sps->width + (x)])
83 #define SAMPLE_CTB(tab, x, y) ((tab)[(y) * min_cb_width + (x)])
85 #define IS_IDR(s) ((s)->nal_unit_type == NAL_IDR_W_RADL || (s)->nal_unit_type == NAL_IDR_N_LP)
86 #define IS_BLA(s) ((s)->nal_unit_type == NAL_BLA_W_RADL || (s)->nal_unit_type == NAL_BLA_W_LP || \
87 (s)->nal_unit_type == NAL_BLA_N_LP)
88 #define IS_IRAP(s) ((s)->nal_unit_type >= 16 && (s)->nal_unit_type <= 23)
91 * Table 7-3: NAL unit type codes
144 SPLIT_CODING_UNIT_FLAG
,
145 CU_TRANSQUANT_BYPASS_FLAG
,
151 PREV_INTRA_LUMA_PRED_FLAG
,
153 REM_INTRA_LUMA_PRED_MODE
,
154 INTRA_CHROMA_PRED_MODE
,
160 ABS_MVD_GREATER0_FLAG
,
161 ABS_MVD_GREATER1_FLAG
,
165 NO_RESIDUAL_DATA_FLAG
,
166 SPLIT_TRANSFORM_FLAG
,
171 EXPLICIT_RDPCM_DIR_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
,
184 CU_CHROMA_QP_OFFSET_FLAG
,
185 CU_CHROMA_QP_OFFSET_IDX
,
276 typedef struct ShortTermRPS
{
277 unsigned int num_negative_pics
;
279 int32_t delta_poc
[32];
283 typedef struct LongTermRPS
{
289 typedef struct RefPicList
{
290 struct HEVCFrame
*ref
[MAX_REFS
];
292 int isLongTerm
[MAX_REFS
];
296 typedef struct RefPicListTab
{
297 RefPicList refPicList
[2];
300 typedef struct HEVCWindow
{
310 int overscan_info_present_flag
;
311 int overscan_appropriate_flag
;
313 int video_signal_type_present_flag
;
315 int video_full_range_flag
;
316 int colour_description_present_flag
;
317 uint8_t colour_primaries
;
318 uint8_t transfer_characteristic
;
319 uint8_t matrix_coeffs
;
321 int chroma_loc_info_present_flag
;
322 int chroma_sample_loc_type_top_field
;
323 int chroma_sample_loc_type_bottom_field
;
324 int neutra_chroma_indication_flag
;
327 int frame_field_info_present_flag
;
329 int default_display_window_flag
;
330 HEVCWindow def_disp_win
;
332 int vui_timing_info_present_flag
;
333 uint32_t vui_num_units_in_tick
;
334 uint32_t vui_time_scale
;
335 int vui_poc_proportional_to_timing_flag
;
336 int vui_num_ticks_poc_diff_one_minus1
;
337 int vui_hrd_parameters_present_flag
;
339 int bitstream_restriction_flag
;
340 int tiles_fixed_structure_flag
;
341 int motion_vectors_over_pic_boundaries_flag
;
342 int restricted_ref_pic_lists_flag
;
343 int min_spatial_segmentation_idc
;
344 int max_bytes_per_pic_denom
;
345 int max_bits_per_min_cu_denom
;
346 int log2_max_mv_length_horizontal
;
347 int log2_max_mv_length_vertical
;
350 typedef struct PTLCommon
{
351 uint8_t profile_space
;
354 uint8_t profile_compatibility_flag
[32];
356 uint8_t progressive_source_flag
;
357 uint8_t interlaced_source_flag
;
358 uint8_t non_packed_constraint_flag
;
359 uint8_t frame_only_constraint_flag
;
363 PTLCommon general_ptl
;
364 PTLCommon sub_layer_ptl
[MAX_SUB_LAYERS
];
366 uint8_t sub_layer_profile_present_flag
[MAX_SUB_LAYERS
];
367 uint8_t sub_layer_level_present_flag
[MAX_SUB_LAYERS
];
370 typedef struct HEVCVPS
{
371 uint8_t vps_temporal_id_nesting_flag
;
373 int vps_max_sub_layers
; ///< vps_max_temporal_layers_minus1 + 1
376 int vps_sub_layer_ordering_info_present_flag
;
377 unsigned int vps_max_dec_pic_buffering
[MAX_SUB_LAYERS
];
378 unsigned int vps_num_reorder_pics
[MAX_SUB_LAYERS
];
379 unsigned int vps_max_latency_increase
[MAX_SUB_LAYERS
];
380 int vps_max_layer_id
;
381 int vps_num_layer_sets
; ///< vps_num_layer_sets_minus1 + 1
382 uint8_t vps_timing_info_present_flag
;
383 uint32_t vps_num_units_in_tick
;
384 uint32_t vps_time_scale
;
385 uint8_t vps_poc_proportional_to_timing_flag
;
386 int vps_num_ticks_poc_diff_one
; ///< vps_num_ticks_poc_diff_one_minus1 + 1
387 int vps_num_hrd_parameters
;
390 typedef struct ScalingList
{
391 /* This is a little wasteful, since sizeID 0 only needs 8 coeffs,
392 * and size ID 3 only has 2 arrays, not 6. */
393 uint8_t sl
[4][6][64];
397 typedef struct HEVCSPS
{
399 int chroma_format_idc
;
400 uint8_t separate_colour_plane_flag
;
402 ///< output (i.e. cropped) values
403 int output_width
, output_height
;
404 HEVCWindow output_window
;
406 HEVCWindow pic_conf_win
;
410 enum AVPixelFormat pix_fmt
;
412 unsigned int log2_max_poc_lsb
;
413 int pcm_enabled_flag
;
417 int max_dec_pic_buffering
;
418 int num_reorder_pics
;
419 int max_latency_increase
;
420 } temporal_layer
[MAX_SUB_LAYERS
];
425 uint8_t scaling_list_enable_flag
;
426 ScalingList scaling_list
;
428 unsigned int nb_st_rps
;
429 ShortTermRPS st_rps
[MAX_SHORT_TERM_RPS_COUNT
];
431 uint8_t amp_enabled_flag
;
434 uint8_t long_term_ref_pics_present_flag
;
435 uint16_t lt_ref_pic_poc_lsb_sps
[32];
436 uint8_t used_by_curr_pic_lt_sps_flag
[32];
437 uint8_t num_long_term_ref_pics_sps
;
441 uint8_t bit_depth_chroma
;
442 unsigned int log2_min_pcm_cb_size
;
443 unsigned int log2_max_pcm_cb_size
;
444 uint8_t loop_filter_disable_flag
;
446 uint8_t sps_temporal_mvp_enabled_flag
;
447 uint8_t sps_strong_intra_smoothing_enable_flag
;
449 unsigned int log2_min_cb_size
;
450 unsigned int log2_diff_max_min_coding_block_size
;
451 unsigned int log2_min_tb_size
;
452 unsigned int log2_max_trafo_size
;
453 unsigned int log2_ctb_size
;
454 unsigned int log2_min_pu_size
;
456 int max_transform_hierarchy_depth_inter
;
457 int max_transform_hierarchy_depth_intra
;
459 int transform_skip_rotation_enabled_flag
;
460 int transform_skip_context_enabled_flag
;
461 int implicit_rdpcm_enabled_flag
;
462 int explicit_rdpcm_enabled_flag
;
463 int intra_smoothing_disabled_flag
;
464 int persistent_rice_adaptation_enabled_flag
;
466 ///< coded frame dimension in various units
486 typedef struct HEVCPPS
{
487 unsigned int sps_id
; ///< seq_parameter_set_id
489 uint8_t sign_data_hiding_flag
;
491 uint8_t cabac_init_present_flag
;
493 int num_ref_idx_l0_default_active
; ///< num_ref_idx_l0_default_active_minus1 + 1
494 int num_ref_idx_l1_default_active
; ///< num_ref_idx_l1_default_active_minus1 + 1
495 int pic_init_qp_minus26
;
497 uint8_t constrained_intra_pred_flag
;
498 uint8_t transform_skip_enabled_flag
;
500 uint8_t cu_qp_delta_enabled_flag
;
501 int diff_cu_qp_delta_depth
;
505 uint8_t pic_slice_level_chroma_qp_offsets_present_flag
;
506 uint8_t weighted_pred_flag
;
507 uint8_t weighted_bipred_flag
;
508 uint8_t output_flag_present_flag
;
509 uint8_t transquant_bypass_enable_flag
;
511 uint8_t dependent_slice_segments_enabled_flag
;
512 uint8_t tiles_enabled_flag
;
513 uint8_t entropy_coding_sync_enabled_flag
;
515 int num_tile_columns
; ///< num_tile_columns_minus1 + 1
516 int num_tile_rows
; ///< num_tile_rows_minus1 + 1
517 uint8_t uniform_spacing_flag
;
518 uint8_t loop_filter_across_tiles_enabled_flag
;
520 uint8_t seq_loop_filter_across_slices_enabled_flag
;
522 uint8_t deblocking_filter_control_present_flag
;
523 uint8_t deblocking_filter_override_enabled_flag
;
525 int beta_offset
; ///< beta_offset_div2 * 2
526 int tc_offset
; ///< tc_offset_div2 * 2
528 uint8_t scaling_list_data_present_flag
;
529 ScalingList scaling_list
;
531 uint8_t lists_modification_present_flag
;
532 int log2_parallel_merge_level
; ///< log2_parallel_merge_level_minus2 + 2
533 int num_extra_slice_header_bits
;
534 uint8_t slice_header_extension_present_flag
;
535 uint8_t log2_max_transform_skip_block_size
;
536 uint8_t cross_component_prediction_enabled_flag
;
537 uint8_t chroma_qp_offset_list_enabled_flag
;
538 uint8_t diff_cu_chroma_qp_offset_depth
;
539 uint8_t chroma_qp_offset_list_len_minus1
;
540 int8_t cb_qp_offset_list
[5];
541 int8_t cr_qp_offset_list
[5];
542 uint8_t log2_sao_offset_scale_luma
;
543 uint8_t log2_sao_offset_scale_chroma
;
545 // Inferred parameters
546 unsigned int *column_width
; ///< ColumnWidth
547 unsigned int *row_height
; ///< RowHeight
548 unsigned int *col_bd
; ///< ColBd
549 unsigned int *row_bd
; ///< RowBd
552 int *ctb_addr_rs_to_ts
; ///< CtbAddrRSToTS
553 int *ctb_addr_ts_to_rs
; ///< CtbAddrTSToRS
554 int *tile_id
; ///< TileId
555 int *tile_pos_rs
; ///< TilePosRS
556 int *min_tb_addr_zs
; ///< MinTbAddrZS
557 int *min_tb_addr_zs_tab
;///< MinTbAddrZS
560 typedef struct SliceHeader
{
563 ///< address (in raster order) of the first block in the current slice segment
564 unsigned int slice_segment_addr
;
565 ///< address (in raster order) of the first block in the current slice
566 unsigned int slice_addr
;
568 enum SliceType slice_type
;
570 int pic_order_cnt_lsb
;
572 uint8_t first_slice_in_pic_flag
;
573 uint8_t dependent_slice_segment_flag
;
574 uint8_t pic_output_flag
;
575 uint8_t colour_plane_id
;
577 ///< RPS coded in the slice header itself is stored here
578 ShortTermRPS slice_rps
;
579 const ShortTermRPS
*short_term_rps
;
580 LongTermRPS long_term_rps
;
581 unsigned int list_entry_lx
[2][32];
583 uint8_t rpl_modification_flag
[2];
584 uint8_t no_output_of_prior_pics_flag
;
585 uint8_t slice_temporal_mvp_enabled_flag
;
587 unsigned int nb_refs
[2];
589 uint8_t slice_sample_adaptive_offset_flag
[3];
590 uint8_t mvd_l1_zero_flag
;
592 uint8_t cabac_init_flag
;
593 uint8_t disable_deblocking_filter_flag
; ///< slice_header_disable_deblocking_filter_flag
594 uint8_t slice_loop_filter_across_slices_enabled_flag
;
595 uint8_t collocated_list
;
597 unsigned int collocated_ref_idx
;
600 int slice_cb_qp_offset
;
601 int slice_cr_qp_offset
;
603 uint8_t cu_chroma_qp_offset_enabled_flag
;
605 int beta_offset
; ///< beta_offset_div2 * 2
606 int tc_offset
; ///< tc_offset_div2 * 2
608 unsigned int max_num_merge_cand
; ///< 5 - 5_minus_max_num_merge_cand
610 int *entry_point_offset
;
613 int num_entry_point_offsets
;
617 uint8_t luma_log2_weight_denom
;
618 int16_t chroma_log2_weight_denom
;
620 int16_t luma_weight_l0
[16];
621 int16_t chroma_weight_l0
[16][2];
622 int16_t chroma_weight_l1
[16][2];
623 int16_t luma_weight_l1
[16];
625 int16_t luma_offset_l0
[16];
626 int16_t chroma_offset_l0
[16][2];
628 int16_t luma_offset_l1
[16];
629 int16_t chroma_offset_l1
[16][2];
631 int slice_ctb_addr_rs
;
634 typedef struct CodingUnit
{
638 enum PredMode pred_mode
; ///< PredMode
639 enum PartMode part_mode
; ///< PartMode
641 // Inferred parameters
642 uint8_t intra_split_flag
; ///< IntraSplitFlag
643 uint8_t max_trafo_depth
; ///< MaxTrafoDepth
644 uint8_t cu_transquant_bypass_flag
;
648 int16_t x
; ///< horizontal component of motion vector
649 int16_t y
; ///< vertical component of motion vector
652 typedef struct MvField
{
653 DECLARE_ALIGNED(4, Mv
, mv
)[2];
658 typedef struct NeighbourAvailable
{
659 int cand_bottom_left
;
664 int cand_up_right_sap
;
665 } NeighbourAvailable
;
667 typedef struct PredictionUnit
{
669 int rem_intra_luma_pred_mode
;
670 uint8_t intra_pred_mode
[4];
673 uint8_t intra_pred_mode_c
[4];
674 uint8_t chroma_mode_c
[4];
677 typedef struct TransformUnit
{
682 // Inferred parameters;
684 int intra_pred_mode_c
;
686 uint8_t is_cu_qp_delta_coded
;
687 uint8_t is_cu_chroma_qp_offset_coded
;
688 int8_t cu_qp_offset_cb
;
689 int8_t cu_qp_offset_cr
;
693 typedef struct DBParams
{
698 #define HEVC_FRAME_FLAG_OUTPUT (1 << 0)
699 #define HEVC_FRAME_FLAG_SHORT_REF (1 << 1)
700 #define HEVC_FRAME_FLAG_LONG_REF (1 << 2)
701 #define HEVC_FRAME_FLAG_BUMPING (1 << 3)
703 typedef struct HEVCFrame
{
707 RefPicList
*refPicList
;
708 RefPicListTab
**rpl_tab
;
711 struct HEVCFrame
*collocated_ref
;
715 AVBufferRef
*tab_mvf_buf
;
716 AVBufferRef
*rpl_tab_buf
;
717 AVBufferRef
*rpl_buf
;
720 * A sequence counter, so that old frames are output first
726 * A combination of HEVC_FRAME_FLAG_*
731 typedef struct HEVCNAL
{
732 uint8_t *rbsp_buffer
;
733 int rbsp_buffer_size
;
739 typedef struct HEVCLocalContext
{
740 uint8_t cabac_state
[HEVC_CONTEXTS
];
742 uint8_t stat_coeff
[4];
744 uint8_t first_qp_group
;
756 uint8_t ctb_left_flag
;
758 uint8_t ctb_up_right_flag
;
759 uint8_t ctb_up_left_flag
;
762 /* +7 is for subpixel interpolation, *2 for high bit depths */
763 DECLARE_ALIGNED(32, uint8_t, edge_emu_buffer
)[(MAX_PB_SIZE
+ 7) * EDGE_EMU_BUFFER_STRIDE
* 2];
764 DECLARE_ALIGNED(32, uint8_t, edge_emu_buffer2
)[(MAX_PB_SIZE
+ 7) * EDGE_EMU_BUFFER_STRIDE
* 2];
765 DECLARE_ALIGNED(16, int16_t, tmp
[MAX_PB_SIZE
* MAX_PB_SIZE
]);
770 NeighbourAvailable na
;
772 #define BOUNDARY_LEFT_SLICE (1 << 0)
773 #define BOUNDARY_LEFT_TILE (1 << 1)
774 #define BOUNDARY_UPPER_SLICE (1 << 2)
775 #define BOUNDARY_UPPER_TILE (1 << 3)
776 /* properties of the boundary of the current CTB for the purposes
777 * of the deblocking filter */
781 typedef struct HEVCContext
{
782 const AVClass
*c
; // needed by private avoptions
783 AVCodecContext
*avctx
;
785 struct HEVCContext
*sList
[MAX_NB_THREADS
];
787 HEVCLocalContext
*HEVClcList
[MAX_NB_THREADS
];
788 HEVCLocalContext
*HEVClc
;
790 uint8_t threads_type
;
791 uint8_t threads_number
;
796 uint8_t *cabac_state
;
798 /** 1 if the independent slice segment header was successfully parsed */
799 uint8_t slice_initialized
;
804 AVFrame
*output_frame
;
809 AVBufferRef
*vps_list
[MAX_VPS_COUNT
];
810 AVBufferRef
*sps_list
[MAX_SPS_COUNT
];
811 AVBufferRef
*pps_list
[MAX_PPS_COUNT
];
813 AVBufferRef
*current_sps
;
815 AVBufferPool
*tab_mvf_pool
;
816 AVBufferPool
*rpl_tab_pool
;
818 ///< candidate references for the current frame
824 enum NALUnitType nal_unit_type
;
825 int temporal_id
; ///< temporal_id_plus1 - 1
830 int slice_idx
; ///< number of the slice being currently decoded
831 int eos
; ///< current packet contains an EOS/EOB NAL
832 int last_eos
; ///< last packet contains an EOS/EOB NAL
840 HEVCDSPContext hevcdsp
;
841 VideoDSPContext vdsp
;
842 BswapDSPContext bdsp
;
844 uint8_t *horizontal_bs
;
845 uint8_t *vertical_bs
;
847 int32_t *tab_slice_address
;
851 uint8_t *tab_ct_depth
;
855 uint8_t *cbf_luma
; // cbf_luma of colocated TU
858 // CTB-level flags affecting loop filter operation
859 uint8_t *filter_slice_edges
;
861 /** used on BE to byteswap the lines for checksumming */
862 uint8_t *checksum_buf
;
863 int checksum_buf_size
;
866 * Sequence counters for decoded and output frames, so that old
867 * frames are output first after a POC reset
872 int enable_parallel_tiles
;
875 int *skipped_bytes_pos
;
876 int skipped_bytes_pos_size
;
878 int *skipped_bytes_nal
;
879 int **skipped_bytes_pos_nal
;
880 int *skipped_bytes_pos_size_nal
;
887 // type of the first VCL NAL of the current frame
888 enum NALUnitType first_nal_type
;
890 // for checking the frame checksums
891 struct AVMD5
*md5_ctx
;
895 uint8_t context_initialized
;
896 uint8_t is_nalff
; ///< this flag is != 0 if bitstream is encapsulated
897 ///< as a format defined in 14496-15
898 int apply_defdispwin
;
900 int active_seq_parameter_set_id
;
902 int nal_length_size
; ///< Number of bytes used for nal length (1, 2 or 4)
905 /** frame packing arrangement variables */
906 int sei_frame_packing_present
;
907 int frame_packing_arrangement_type
;
908 int content_interpretation_type
;
909 int quincunx_subsampling
;
911 /** display orientation */
912 int sei_display_orientation_present
;
913 int sei_anticlockwise_rotation
;
914 int sei_hflip
, sei_vflip
;
919 int ff_hevc_decode_short_term_rps(HEVCContext
*s
, ShortTermRPS
*rps
,
920 const HEVCSPS
*sps
, int is_slice_header
);
921 int ff_hevc_decode_nal_vps(HEVCContext
*s
);
922 int ff_hevc_decode_nal_sps(HEVCContext
*s
);
923 int ff_hevc_decode_nal_pps(HEVCContext
*s
);
924 int ff_hevc_decode_nal_sei(HEVCContext
*s
);
926 int ff_hevc_extract_rbsp(HEVCContext
*s
, const uint8_t *src
, int length
,
930 * Mark all frames in DPB as unused for reference.
932 void ff_hevc_clear_refs(HEVCContext
*s
);
935 * Drop all frames currently in DPB.
937 void ff_hevc_flush_dpb(HEVCContext
*s
);
940 * Compute POC of the current frame and return it.
942 int ff_hevc_compute_poc(HEVCContext
*s
, int poc_lsb
);
944 RefPicList
*ff_hevc_get_ref_list(HEVCContext
*s
, HEVCFrame
*frame
,
948 * Construct the reference picture sets for the current frame.
950 int ff_hevc_frame_rps(HEVCContext
*s
);
953 * Construct the reference picture list(s) for the current slice.
955 int ff_hevc_slice_rpl(HEVCContext
*s
);
957 void ff_hevc_save_states(HEVCContext
*s
, int ctb_addr_ts
);
958 void ff_hevc_cabac_init(HEVCContext
*s
, int ctb_addr_ts
);
959 int ff_hevc_sao_merge_flag_decode(HEVCContext
*s
);
960 int ff_hevc_sao_type_idx_decode(HEVCContext
*s
);
961 int ff_hevc_sao_band_position_decode(HEVCContext
*s
);
962 int ff_hevc_sao_offset_abs_decode(HEVCContext
*s
);
963 int ff_hevc_sao_offset_sign_decode(HEVCContext
*s
);
964 int ff_hevc_sao_eo_class_decode(HEVCContext
*s
);
965 int ff_hevc_end_of_slice_flag_decode(HEVCContext
*s
);
966 int ff_hevc_cu_transquant_bypass_flag_decode(HEVCContext
*s
);
967 int ff_hevc_skip_flag_decode(HEVCContext
*s
, int x0
, int y0
,
969 int ff_hevc_pred_mode_decode(HEVCContext
*s
);
970 int ff_hevc_split_coding_unit_flag_decode(HEVCContext
*s
, int ct_depth
,
972 int ff_hevc_part_mode_decode(HEVCContext
*s
, int log2_cb_size
);
973 int ff_hevc_pcm_flag_decode(HEVCContext
*s
);
974 int ff_hevc_prev_intra_luma_pred_flag_decode(HEVCContext
*s
);
975 int ff_hevc_mpm_idx_decode(HEVCContext
*s
);
976 int ff_hevc_rem_intra_luma_pred_mode_decode(HEVCContext
*s
);
977 int ff_hevc_intra_chroma_pred_mode_decode(HEVCContext
*s
);
978 int ff_hevc_merge_idx_decode(HEVCContext
*s
);
979 int ff_hevc_merge_flag_decode(HEVCContext
*s
);
980 int ff_hevc_inter_pred_idc_decode(HEVCContext
*s
, int nPbW
, int nPbH
);
981 int ff_hevc_ref_idx_lx_decode(HEVCContext
*s
, int num_ref_idx_lx
);
982 int ff_hevc_mvp_lx_flag_decode(HEVCContext
*s
);
983 int ff_hevc_no_residual_syntax_flag_decode(HEVCContext
*s
);
984 int ff_hevc_split_transform_flag_decode(HEVCContext
*s
, int log2_trafo_size
);
985 int ff_hevc_cbf_cb_cr_decode(HEVCContext
*s
, int trafo_depth
);
986 int ff_hevc_cbf_luma_decode(HEVCContext
*s
, int trafo_depth
);
987 int ff_hevc_log2_res_scale_abs(HEVCContext
*s
, int idx
);
988 int ff_hevc_res_scale_sign_flag(HEVCContext
*s
, int idx
);
991 * Get the number of candidate references for the current frame.
993 int ff_hevc_frame_nb_refs(HEVCContext
*s
);
995 int ff_hevc_set_new_ref(HEVCContext
*s
, AVFrame
**frame
, int poc
);
998 * Find next frame in output order and put a reference to it in frame.
999 * @return 1 if a frame was output, 0 otherwise
1001 int ff_hevc_output_frame(HEVCContext
*s
, AVFrame
*frame
, int flush
);
1003 void ff_hevc_bump_frame(HEVCContext
*s
);
1005 void ff_hevc_unref_frame(HEVCContext
*s
, HEVCFrame
*frame
, int flags
);
1007 void ff_hevc_set_neighbour_available(HEVCContext
*s
, int x0
, int y0
,
1008 int nPbW
, int nPbH
);
1009 void ff_hevc_luma_mv_merge_mode(HEVCContext
*s
, int x0
, int y0
,
1010 int nPbW
, int nPbH
, int log2_cb_size
,
1011 int part_idx
, int merge_idx
, MvField
*mv
);
1012 void ff_hevc_luma_mv_mvp_mode(HEVCContext
*s
, int x0
, int y0
,
1013 int nPbW
, int nPbH
, int log2_cb_size
,
1014 int part_idx
, int merge_idx
,
1015 MvField
*mv
, int mvp_lx_flag
, int LX
);
1016 void ff_hevc_set_qPy(HEVCContext
*s
, int xBase
, int yBase
,
1018 void ff_hevc_deblocking_boundary_strengths(HEVCContext
*s
, int x0
, int y0
,
1019 int log2_trafo_size
);
1020 int ff_hevc_cu_qp_delta_sign_flag(HEVCContext
*s
);
1021 int ff_hevc_cu_qp_delta_abs(HEVCContext
*s
);
1022 int ff_hevc_cu_chroma_qp_offset_flag(HEVCContext
*s
);
1023 int ff_hevc_cu_chroma_qp_offset_idx(HEVCContext
*s
);
1024 void ff_hevc_hls_filter(HEVCContext
*s
, int x
, int y
, int ctb_size
);
1025 void ff_hevc_hls_filters(HEVCContext
*s
, int x_ctb
, int y_ctb
, int ctb_size
);
1026 void ff_hevc_hls_residual_coding(HEVCContext
*s
, int x0
, int y0
,
1027 int log2_trafo_size
, enum ScanType scan_idx
,
1030 void ff_hevc_hls_mvd_coding(HEVCContext
*s
, int x0
, int y0
, int log2_cb_size
);
1033 extern const uint8_t ff_hevc_qpel_extra_before
[4];
1034 extern const uint8_t ff_hevc_qpel_extra_after
[4];
1035 extern const uint8_t ff_hevc_qpel_extra
[4];
1037 extern const uint8_t ff_hevc_diag_scan4x4_x
[16];
1038 extern const uint8_t ff_hevc_diag_scan4x4_y
[16];
1039 extern const uint8_t ff_hevc_diag_scan8x8_x
[64];
1040 extern const uint8_t ff_hevc_diag_scan8x8_y
[64];
1042 #endif /* AVCODEC_HEVC_H */