FFmpeg  4.3.8
hevcdec.h
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1 /*
2  * HEVC video decoder
3  *
4  * Copyright (C) 2012 - 2013 Guillaume Martres
5  *
6  * This file is part of FFmpeg.
7  *
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.
12  *
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.
17  *
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
21  */
22 
23 #ifndef AVCODEC_HEVCDEC_H
24 #define AVCODEC_HEVCDEC_H
25 
26 #include <stdatomic.h>
27 
28 #include "libavutil/buffer.h"
29 #include "libavutil/md5.h"
30 
31 #include "avcodec.h"
32 #include "bswapdsp.h"
33 #include "cabac.h"
34 #include "get_bits.h"
35 #include "hevcpred.h"
36 #include "h2645_parse.h"
37 #include "hevc.h"
38 #include "hevc_ps.h"
39 #include "hevc_sei.h"
40 #include "hevcdsp.h"
41 #include "internal.h"
42 #include "thread.h"
43 #include "videodsp.h"
44 
45 #define MAX_NB_THREADS 16
46 #define SHIFT_CTB_WPP 2
47 
48 //TODO: check if this is really the maximum
49 #define MAX_TRANSFORM_DEPTH 5
50 
51 #define MAX_TB_SIZE 32
52 #define MAX_QP 51
53 #define DEFAULT_INTRA_TC_OFFSET 2
54 
55 #define HEVC_CONTEXTS 199
56 
57 #define MRG_MAX_NUM_CANDS 5
58 
59 #define L0 0
60 #define L1 1
61 
62 #define EPEL_EXTRA_BEFORE 1
63 #define EPEL_EXTRA_AFTER 2
64 #define EPEL_EXTRA 3
65 #define QPEL_EXTRA_BEFORE 3
66 #define QPEL_EXTRA_AFTER 4
67 #define QPEL_EXTRA 7
68 
69 #define EDGE_EMU_BUFFER_STRIDE 80
70 
71 /**
72  * Value of the luma sample at position (x, y) in the 2D array tab.
73  */
74 #define SAMPLE(tab, x, y) ((tab)[(y) * s->sps->width + (x)])
75 #define SAMPLE_CTB(tab, x, y) ((tab)[(y) * min_cb_width + (x)])
76 
77 #define IS_IDR(s) ((s)->nal_unit_type == HEVC_NAL_IDR_W_RADL || (s)->nal_unit_type == HEVC_NAL_IDR_N_LP)
78 #define IS_BLA(s) ((s)->nal_unit_type == HEVC_NAL_BLA_W_RADL || (s)->nal_unit_type == HEVC_NAL_BLA_W_LP || \
79  (s)->nal_unit_type == HEVC_NAL_BLA_N_LP)
80 #define IS_IRAP(s) ((s)->nal_unit_type >= 16 && (s)->nal_unit_type <= 23)
81 
82 enum RPSType {
89 };
90 
141 };
142 
143 enum PartMode {
147  PART_NxN = 3,
152 };
153 
154 enum PredMode {
158 };
159 
161  PRED_L0 = 0,
164 };
165 
166 enum PredFlag {
167  PF_INTRA = 0,
171 };
172 
209 };
210 
211 enum SAOType {
216 };
217 
223 };
224 
225 enum ScanType {
229 };
230 
231 typedef struct LongTermRPS {
232  int poc[32];
236 } LongTermRPS;
237 
238 typedef struct RefPicList {
240  int list[HEVC_MAX_REFS];
241  int isLongTerm[HEVC_MAX_REFS];
242  int nb_refs;
243 } RefPicList;
244 
245 typedef struct RefPicListTab {
246  RefPicList refPicList[2];
247 } RefPicListTab;
248 
249 typedef struct SliceHeader {
250  unsigned int pps_id;
251 
252  ///< address (in raster order) of the first block in the current slice segment
253  unsigned int slice_segment_addr;
254  ///< address (in raster order) of the first block in the current slice
255  unsigned int slice_addr;
256 
257  enum HEVCSliceType slice_type;
258 
260 
265 
266  ///< RPS coded in the slice header itself is stored here
273  unsigned int list_entry_lx[2][32];
274 
275  uint8_t rpl_modification_flag[2];
278 
279  unsigned int nb_refs[2];
280 
281  uint8_t slice_sample_adaptive_offset_flag[3];
283 
285  uint8_t disable_deblocking_filter_flag; ///< slice_header_disable_deblocking_filter_flag
288 
289  unsigned int collocated_ref_idx;
290 
294 
296 
297  int beta_offset; ///< beta_offset_div2 * 2
298  int tc_offset; ///< tc_offset_div2 * 2
299 
300  unsigned int max_num_merge_cand; ///< 5 - 5_minus_max_num_merge_cand
301 
303  int * offset;
304  int * size;
306 
307  int8_t slice_qp;
308 
311 
312  int16_t luma_weight_l0[16];
313  int16_t chroma_weight_l0[16][2];
314  int16_t chroma_weight_l1[16][2];
315  int16_t luma_weight_l1[16];
316 
317  int16_t luma_offset_l0[16];
318  int16_t chroma_offset_l0[16][2];
319 
320  int16_t luma_offset_l1[16];
321  int16_t chroma_offset_l1[16][2];
322 
324 } SliceHeader;
325 
326 typedef struct CodingUnit {
327  int x;
328  int y;
329 
330  enum PredMode pred_mode; ///< PredMode
331  enum PartMode part_mode; ///< PartMode
332 
333  // Inferred parameters
334  uint8_t intra_split_flag; ///< IntraSplitFlag
335  uint8_t max_trafo_depth; ///< MaxTrafoDepth
337 } CodingUnit;
338 
339 typedef struct Mv {
340  int16_t x; ///< horizontal component of motion vector
341  int16_t y; ///< vertical component of motion vector
342 } Mv;
343 
344 typedef struct MvField {
346  int8_t ref_idx[2];
347  int8_t pred_flag;
348 } MvField;
349 
350 typedef struct NeighbourAvailable {
353  int cand_up;
358 
359 typedef struct PredictionUnit {
360  int mpm_idx;
362  uint8_t intra_pred_mode[4];
365  uint8_t intra_pred_mode_c[4];
366  uint8_t chroma_mode_c[4];
368 
369 typedef struct TransformUnit {
371 
373 
374  // Inferred parameters;
383 } TransformUnit;
384 
385 typedef struct DBParams {
388 } DBParams;
389 
390 #define HEVC_FRAME_FLAG_OUTPUT (1 << 0)
391 #define HEVC_FRAME_FLAG_SHORT_REF (1 << 1)
392 #define HEVC_FRAME_FLAG_LONG_REF (1 << 2)
393 #define HEVC_FRAME_FLAG_BUMPING (1 << 3)
394 
395 typedef struct HEVCFrame {
402  int poc;
404 
408 
411 
412  /**
413  * A sequence counter, so that old frames are output first
414  * after a POC reset
415  */
416  uint16_t sequence;
417 
418  /**
419  * A combination of HEVC_FRAME_FLAG_*
420  */
422 } HEVCFrame;
423 
424 typedef struct HEVCLocalContext {
425  uint8_t cabac_state[HEVC_CONTEXTS];
426 
427  uint8_t stat_coeff[4];
428 
430 
433 
434  int8_t qp_y;
435  int8_t curr_qp_y;
436 
437  int qPy_pred;
438 
440 
447  /* +7 is for subpixel interpolation, *2 for high bit depths */
448  DECLARE_ALIGNED(32, uint8_t, edge_emu_buffer)[(MAX_PB_SIZE + 7) * EDGE_EMU_BUFFER_STRIDE * 2];
449  /* The extended size between the new edge emu buffer is abused by SAO */
450  DECLARE_ALIGNED(32, uint8_t, edge_emu_buffer2)[(MAX_PB_SIZE + 7) * EDGE_EMU_BUFFER_STRIDE * 2];
452 
453  int ct_depth;
457 
458 #define BOUNDARY_LEFT_SLICE (1 << 0)
459 #define BOUNDARY_LEFT_TILE (1 << 1)
460 #define BOUNDARY_UPPER_SLICE (1 << 2)
461 #define BOUNDARY_UPPER_TILE (1 << 3)
462  /* properties of the boundary of the current CTB for the purposes
463  * of the deblocking filter */
466 
467 typedef struct HEVCContext {
468  const AVClass *c; // needed by private avoptions
470 
472 
475 
478 
479  int width;
480  int height;
481 
483 
484  /** 1 if the independent slice segment header was successfully parsed */
486 
491 
494  struct AVMD5 *md5_ctx;
495 
498 
499  ///< candidate references for the current frame
500  RefPicList rps[5];
501 
505  enum HEVCNALUnitType nal_unit_type;
506  int temporal_id; ///< temporal_id_plus1 - 1
509  int poc;
510  int pocTid0;
511  int slice_idx; ///< number of the slice being currently decoded
512  int eos; ///< current packet contains an EOS/EOB NAL
513  int last_eos; ///< last packet contains an EOS/EOB NAL
514  int max_ra;
515  int bs_width;
517  int overlap;
518 
521 
526  int8_t *qp_y_tab;
529 
531 
532  // CU
535  // PU
537 
538  uint8_t *cbf_luma; // cbf_luma of colocated TU
540 
541  // CTB-level flags affecting loop filter operation
543 
544  /** used on BE to byteswap the lines for checksumming */
547 
548  /**
549  * Sequence counters for decoded and output frames, so that old
550  * frames are output first after a POC reset
551  */
552  uint16_t seq_decode;
553  uint16_t seq_output;
554 
557 
558  const uint8_t *data;
559 
561  // type of the first VCL NAL of the current frame
562  enum HEVCNALUnitType first_nal_type;
563 
565  int is_nalff; ///< this flag is != 0 if bitstream is encapsulated
566  ///< as a format defined in 14496-15
568 
569  int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
571 } HEVCContext;
572 
573 /**
574  * Mark all frames in DPB as unused for reference.
575  */
577 
578 /**
579  * Drop all frames currently in DPB.
580  */
582 
584  int x0, int y0);
585 
586 /**
587  * Construct the reference picture sets for the current frame.
588  */
590 
591 /**
592  * Construct the reference picture list(s) for the current slice.
593  */
595 
596 void ff_hevc_save_states(HEVCContext *s, int ctb_addr_ts);
597 int ff_hevc_cabac_init(HEVCContext *s, int ctb_addr_ts);
606 int ff_hevc_skip_flag_decode(HEVCContext *s, int x0, int y0,
607  int x_cb, int y_cb);
610  int x0, int y0);
611 int ff_hevc_part_mode_decode(HEVCContext *s, int log2_cb_size);
619 int ff_hevc_inter_pred_idc_decode(HEVCContext *s, int nPbW, int nPbH);
620 int ff_hevc_ref_idx_lx_decode(HEVCContext *s, int num_ref_idx_lx);
623 int ff_hevc_split_transform_flag_decode(HEVCContext *s, int log2_trafo_size);
624 int ff_hevc_cbf_cb_cr_decode(HEVCContext *s, int trafo_depth);
625 int ff_hevc_cbf_luma_decode(HEVCContext *s, int trafo_depth);
628 
629 /**
630  * Get the number of candidate references for the current frame.
631  */
633 
635 
637 {
638  switch (type) {
639  case HEVC_NAL_TRAIL_N:
640  case HEVC_NAL_TSA_N:
641  case HEVC_NAL_STSA_N:
642  case HEVC_NAL_RADL_N:
643  case HEVC_NAL_RASL_N:
644  case HEVC_NAL_VCL_N10:
645  case HEVC_NAL_VCL_N12:
646  case HEVC_NAL_VCL_N14:
647  return 1;
648  default: break;
649  }
650  return 0;
651 }
652 
653 /**
654  * Find next frame in output order and put a reference to it in frame.
655  * @return 1 if a frame was output, 0 otherwise
656  */
658 
660 
661 void ff_hevc_unref_frame(HEVCContext *s, HEVCFrame *frame, int flags);
662 
663 void ff_hevc_set_neighbour_available(HEVCContext *s, int x0, int y0,
664  int nPbW, int nPbH);
665 void ff_hevc_luma_mv_merge_mode(HEVCContext *s, int x0, int y0,
666  int nPbW, int nPbH, int log2_cb_size,
667  int part_idx, int merge_idx, MvField *mv);
668 void ff_hevc_luma_mv_mvp_mode(HEVCContext *s, int x0, int y0,
669  int nPbW, int nPbH, int log2_cb_size,
670  int part_idx, int merge_idx,
671  MvField *mv, int mvp_lx_flag, int LX);
672 void ff_hevc_set_qPy(HEVCContext *s, int xBase, int yBase,
673  int log2_cb_size);
674 void ff_hevc_deblocking_boundary_strengths(HEVCContext *s, int x0, int y0,
675  int log2_trafo_size);
680 void ff_hevc_hls_filter(HEVCContext *s, int x, int y, int ctb_size);
681 void ff_hevc_hls_filters(HEVCContext *s, int x_ctb, int y_ctb, int ctb_size);
682 void ff_hevc_hls_residual_coding(HEVCContext *s, int x0, int y0,
683  int log2_trafo_size, enum ScanType scan_idx,
684  int c_idx);
685 
686 void ff_hevc_hls_mvd_coding(HEVCContext *s, int x0, int y0, int log2_cb_size);
687 
688 extern const uint8_t ff_hevc_qpel_extra_before[4];
689 extern const uint8_t ff_hevc_qpel_extra_after[4];
690 extern const uint8_t ff_hevc_qpel_extra[4];
691 
692 #endif /* AVCODEC_HEVCDEC_H */
int8_t cu_qp_offset_cr
Definition: hevcdec.h:381
uint8_t ctb_up_flag
Definition: hevcdec.h:442
AVFrame * frame
Definition: hevcdec.h:396
HEVCPredContext hpc
Definition: hevcdec.h:522
NeighbourAvailable na
Definition: hevcdec.h:456
int ff_hevc_slice_rpl(HEVCContext *s)
Construct the reference picture list(s) for the current slice.
Definition: hevc_refs.c:291
int pic_order_cnt_lsb
Definition: hevcdec.h:259
int short_term_ref_pic_set_sps_flag
Definition: hevcdec.h:267
This structure describes decoded (raw) audio or video data.
Definition: frame.h:300
HEVCFrame * ref
Definition: hevcdec.h:507
#define HEVC_CONTEXTS
Definition: hevcdec.h:55
uint8_t is_cu_qp_delta_coded
Definition: hevcdec.h:378
int ff_hevc_inter_pred_idc_decode(HEVCContext *s, int nPbW, int nPbH)
Definition: hevc_cabac.c:797
static void flush(AVCodecContext *avctx)
int ff_hevc_sao_offset_sign_decode(HEVCContext *s)
Definition: hevc_cabac.c:596
void ff_hevc_set_qPy(HEVCContext *s, int xBase, int yBase, int log2_cb_size)
Definition: hevc_filter.c:121
VideoDSPContext vdsp
Definition: hevcdec.h:524
const uint8_t ff_hevc_qpel_extra_before[4]
int ff_hevc_res_scale_sign_flag(HEVCContext *s, int idx)
Definition: hevc_cabac.c:905
int16_t x
horizontal component of motion vector
Definition: hevcdec.h:340
int ff_hevc_end_of_slice_flag_decode(HEVCContext *s)
Definition: hevc_cabac.c:608
void * hwaccel_picture_private
Definition: hevcdec.h:410
uint8_t * cabac_state
Definition: hevcdec.h:482
InterPredIdc
Definition: hevcdec.h:160
uint8_t nb_refs
Definition: hevcdec.h:235
MvField * tab_mvf
Definition: hevcdec.h:398
int bs_width
Definition: hevcdec.h:515
uint8_t intra_split_flag
IntraSplitFlag.
Definition: hevcdec.h:334
int rem_intra_luma_pred_mode
Definition: hevcdec.h:361
void ff_hevc_clear_refs(HEVCContext *s)
Mark all frames in DPB as unused for reference.
Definition: hevc_refs.c:66
unsigned int slice_addr
Definition: hevcdec.h:255
int ff_hevc_cbf_luma_decode(HEVCContext *s, int trafo_depth)
Definition: hevc_cabac.c:876
int tc_offset
Definition: hevcdec.h:387
PredictionUnit pu
Definition: hevcdec.h:455
HEVCParamSets ps
Definition: hevcdec.h:492
int nuh_layer_id
Definition: hevcdec.h:570
intptr_t atomic_int
Definition: stdatomic.h:55
uint8_t dependent_slice_segment_flag
Definition: hevcdec.h:262
int ff_hevc_cu_chroma_qp_offset_idx(HEVCContext *s)
Definition: hevc_cabac.c:670
CABACContext cc
Definition: hevcdec.h:432
ShortTermRPS slice_rps
Definition: hevcdec.h:269
int ff_hevc_mpm_idx_decode(HEVCContext *s)
Definition: hevc_cabac.c:752
uint16_t seq_decode
Sequence counters for decoded and output frames, so that old frames are output first after a POC rese...
Definition: hevcdec.h:552
HEVCNALUnitType
Table 7-1 – NAL unit type codes and NAL unit type classes in T-REC-H.265-201802. ...
Definition: hevc.h:28
uint8_t threads_type
Definition: hevcdec.h:476
int max_ra
Definition: hevcdec.h:514
void ff_hevc_bump_frame(HEVCContext *s)
Definition: hevc_refs.c:233
const uint8_t * data
Definition: hevcdec.h:558
int8_t curr_qp_y
Definition: hevcdec.h:435
AVBufferPool * rpl_tab_pool
candidate references for the current frame
Definition: hevcdec.h:497
int nb_refs
Definition: hevcdec.h:242
unsigned int slice_segment_addr
address (in raster order) of the first block in the current slice
Definition: hevcdec.h:253
int is_nalff
this flag is != 0 if bitstream is encapsulated as a format defined in 14496-15
Definition: hevcdec.h:565
int end_of_tiles_x
Definition: hevcdec.h:445
uint8_t
int ff_hevc_log2_res_scale_abs(HEVCContext *s, int idx)
Definition: hevc_cabac.c:896
int ff_hevc_output_frame(HEVCContext *s, AVFrame *frame, int flush)
Find next frame in output order and put a reference to it in frame.
Definition: hevc_refs.c:174
uint8_t ctb_up_right_flag
Definition: hevcdec.h:443
LongTermRPS long_term_rps
Definition: hevcdec.h:272
int poc[32]
Definition: hevcdec.h:232
Multithreading support functions.
void ff_hevc_save_states(HEVCContext *s, int ctb_addr_ts)
Definition: hevc_cabac.c:450
int num_entry_point_offsets
Definition: hevcdec.h:305
SAOType
Definition: hevcdec.h:211
AVFrame * output_frame
Definition: hevcdec.h:488
int apply_defdispwin
Definition: hevcdec.h:567
SAOParams * sao
Definition: hevcdec.h:503
AVCodecContext * avctx
Definition: hevcdec.h:469
int ff_hevc_part_mode_decode(HEVCContext *s, int log2_cb_size)
Definition: hevc_cabac.c:705
int ff_hevc_sao_band_position_decode(HEVCContext *s)
Definition: hevc_cabac.c:576
uint8_t poc_msb_present[32]
Definition: hevcdec.h:233
static AVFrame * frame
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:112
BswapDSPContext bdsp
Definition: hevcdec.h:525
ThreadFrame tf
Definition: hevcdec.h:397
uint8_t first_slice_in_pic_flag
Definition: hevcdec.h:261
uint8_t ctb_up_left_flag
Definition: hevcdec.h:444
uint8_t threads_number
Definition: hevcdec.h:477
uint8_t is_cu_chroma_qp_offset_coded
Definition: hevcdec.h:379
bitstream reader API header.
int8_t pred_flag
Definition: hevcdec.h:347
int8_t * qp_y_tab
Definition: hevcdec.h:526
uint8_t pic_output_flag
Definition: hevcdec.h:263
uint8_t * tab_ct_depth
Definition: hevcdec.h:534
uint8_t cu_transquant_bypass_flag
Definition: hevcdec.h:336
int ff_hevc_frame_rps(HEVCContext *s)
Construct the reference picture sets for the current frame.
Definition: hevc_refs.c:443
Definition: md5.c:40
int ff_hevc_rem_intra_luma_pred_mode_decode(HEVCContext *s)
Definition: hevc_cabac.c:760
RPSType
Definition: hevcdec.h:82
uint8_t used[32]
Definition: hevcdec.h:234
The buffer pool.
int temporal_id
temporal_id_plus1 - 1
Definition: hevcdec.h:506
uint8_t first_qp_group
Definition: hevcdec.h:429
HEVCDSPContext hevcdsp
Definition: hevcdec.h:523
int ff_hevc_cu_qp_delta_sign_flag(HEVCContext *s)
Definition: hevc_cabac.c:660
int ctb_count
Definition: hevcdec.h:401
uint8_t no_output_of_prior_pics_flag
Definition: hevcdec.h:276
HEVCLocalContext * HEVClcList[MAX_NB_THREADS]
Definition: hevcdec.h:473
int slice_idx
number of the slice being currently decoded
Definition: hevcdec.h:511
uint8_t colour_plane_id
RPS coded in the slice header itself is stored here.
Definition: hevcdec.h:264
uint8_t cu_chroma_qp_offset_enabled_flag
Definition: hevcdec.h:295
uint8_t slice_initialized
1 if the independent slice segment header was successfully parsed
Definition: hevcdec.h:485
RefPicList * ff_hevc_get_ref_list(HEVCContext *s, HEVCFrame *frame, int x0, int y0)
Definition: hevc_refs.c:57
AVBufferRef * rpl_tab_buf
Definition: hevcdec.h:406
int * size
Definition: hevcdec.h:304
RefPicList * refPicList
Definition: hevcdec.h:399
int bs_height
Definition: hevcdec.h:516
static av_always_inline int ff_hevc_nal_is_nonref(enum HEVCNALUnitType type)
Definition: hevcdec.h:636
uint8_t * sao_pixel_buffer_h[3]
Definition: hevcdec.h:489
int8_t cu_qp_offset_cb
Definition: hevcdec.h:380
int tc_offset
tc_offset_div2 * 2
Definition: hevcdec.h:298
const ShortTermRPS * short_term_rps
Definition: hevcdec.h:270
uint8_t merge_flag
Definition: hevcdec.h:364
struct AVMD5 * md5_ctx
Definition: hevcdec.h:494
unsigned * entry_point_offset
Definition: hevcdec.h:302
int8_t slice_qp
Definition: hevcdec.h:307
void ff_hevc_hls_mvd_coding(HEVCContext *s, int x0, int y0, int log2_cb_size)
Definition: hevc_cabac.c:1534
uint8_t max_trafo_depth
MaxTrafoDepth.
Definition: hevcdec.h:335
uint16_t sequence
A sequence counter, so that old frames are output first after a POC reset.
Definition: hevcdec.h:416
uint8_t slice_temporal_mvp_enabled_flag
Definition: hevcdec.h:277
Definition: hevcdec.h:169
uint8_t * vertical_bs
Definition: hevcdec.h:528
int chroma_mode_c
Definition: hevcdec.h:377
struct HEVCContext * sList[MAX_NB_THREADS]
Definition: hevcdec.h:471
int slice_qp_delta
Definition: hevcdec.h:291
int intra_pred_mode
Definition: hevcdec.h:375
int ff_hevc_split_transform_flag_decode(HEVCContext *s, int log2_trafo_size)
Definition: hevc_cabac.c:866
AVBufferRef * tab_mvf_buf
Definition: hevcdec.h:405
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)
Definition: hevc_mvs.c:479
int beta_offset
beta_offset_div2 * 2
Definition: hevcdec.h:297
int res_scale_val
Definition: hevcdec.h:372
Definition: hevcdec.h:170
uint8_t * sao_pixel_buffer_v[3]
Definition: hevcdec.h:490
int slice_cr_qp_offset
Definition: hevcdec.h:293
int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc)
Definition: hevc_refs.c:135
uint8_t * tab_ipm
Definition: hevcdec.h:536
int ff_hevc_mvp_lx_flag_decode(HEVCContext *s)
Definition: hevc_cabac.c:823
int ff_hevc_sao_offset_abs_decode(HEVCContext *s)
Definition: hevc_cabac.c:586
const uint8_t ff_hevc_qpel_extra[4]
int32_t
PartMode
Definition: hevcdec.h:143
int ff_hevc_split_coding_unit_flag_decode(HEVCContext *s, int ct_depth, int x0, int y0)
Definition: hevc_cabac.c:686
SyntaxElement
Definition: hevcdec.h:91
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)
Definition: hevc_mvs.c:582
#define s(width, name)
Definition: cbs_vp9.c:257
int intra_pred_mode_c
Definition: hevcdec.h:376
int ff_hevc_cu_chroma_qp_offset_flag(HEVCContext *s)
Definition: hevc_cabac.c:665
struct HEVCFrame * collocated_ref
Definition: hevcdec.h:403
uint16_t seq_output
Definition: hevcdec.h:553
void ff_hevc_deblocking_boundary_strengths(HEVCContext *s, int x0, int y0, int log2_trafo_size)
Definition: hevc_filter.c:725
int ff_hevc_sao_eo_class_decode(HEVCContext *s)
Definition: hevc_cabac.c:601
void ff_hevc_unref_frame(HEVCContext *s, HEVCFrame *frame, int flags)
Definition: hevc_refs.c:32
SAOEOClass
Definition: hevcdec.h:218
int ff_hevc_prev_intra_luma_pred_flag_decode(HEVCContext *s)
Definition: hevc_cabac.c:747
unsigned int pps_id
address (in raster order) of the first block in the current slice segment
Definition: hevcdec.h:250
int ff_hevc_merge_flag_decode(HEVCContext *s)
Definition: hevc_cabac.c:792
static const int8_t mv[256][2]
Definition: 4xm.c:77
IntraPredMode
Definition: hevcdec.h:173
RefPicListTab ** rpl_tab
Definition: hevcdec.h:400
int slice_cb_qp_offset
Definition: hevcdec.h:292
void ff_hevc_hls_filter(HEVCContext *s, int x, int y, int ctb_size)
Definition: hevc_filter.c:853
int overlap
Definition: hevcdec.h:517
int short_term_ref_pic_set_size
Definition: hevcdec.h:268
Libavcodec external API header.
int ff_hevc_cbf_cb_cr_decode(HEVCContext *s, int trafo_depth)
Definition: hevc_cabac.c:871
PredMode
Definition: hevcdec.h:154
int long_term_ref_pic_set_size
Definition: hevcdec.h:271
main external API structure.
Definition: avcodec.h:526
AVBufferRef * hwaccel_priv_buf
Definition: hevcdec.h:409
atomic_int wpp_err
Definition: hevcdec.h:556
int16_t y
vertical component of motion vector
Definition: hevcdec.h:341
uint8_t cross_pf
Definition: hevcdec.h:382
int height
Definition: hevcdec.h:480
#define EDGE_EMU_BUFFER_STRIDE
Definition: hevcdec.h:69
int ff_hevc_pred_mode_decode(HEVCContext *s)
Definition: hevc_cabac.c:681
TransformUnit tu
Definition: hevcdec.h:439
uint8_t ctb_left_flag
Definition: hevcdec.h:441
int cu_qp_delta
Definition: hevcdec.h:370
uint8_t * is_pcm
Definition: hevcdec.h:539
uint8_t * checksum_buf
used on BE to byteswap the lines for checksumming
Definition: hevcdec.h:545
uint8_t cabac_init_flag
Definition: hevcdec.h:284
Describe the class of an AVClass context structure.
Definition: log.h:67
int ff_hevc_sao_type_idx_decode(HEVCContext *s)
Definition: hevc_cabac.c:566
int poc
Definition: hevcdec.h:402
AVFrame * frame
Definition: hevcdec.h:487
void ff_hevc_set_neighbour_available(HEVCContext *s, int x0, int y0, int nPbW, int nPbH)
Definition: hevc_mvs.c:42
int enable_parallel_tiles
Definition: hevcdec.h:555
unsigned int max_num_merge_cand
5 - 5_minus_max_num_merge_cand
Definition: hevcdec.h:300
int checksum_buf_size
Definition: hevcdec.h:546
cl_device_type type
int last_eos
last packet contains an EOS/EOB NAL
Definition: hevcdec.h:513
DBParams * deblock
Definition: hevcdec.h:504
GetBitContext gb
Definition: hevcdec.h:431
refcounted data buffer API
int ff_hevc_no_residual_syntax_flag_decode(HEVCContext *s)
Definition: hevc_cabac.c:828
Definition: hevcdec.h:168
Definition: hevcdec.h:339
PredFlag
Definition: hevcdec.h:166
int ff_hevc_pcm_flag_decode(HEVCContext *s)
Definition: hevc_cabac.c:742
int16_t chroma_log2_weight_denom
Definition: hevcdec.h:310
int pocTid0
Definition: hevcdec.h:510
uint8_t flags
A combination of HEVC_FRAME_FLAG_*.
Definition: hevcdec.h:421
HEVCLocalContext * HEVClc
Definition: hevcdec.h:474
#define MAX_PB_SIZE
Definition: hevcdsp.h:30
#define flags(name, subs,...)
Definition: cbs_av1.c:576
int ff_hevc_cu_qp_delta_abs(HEVCContext *s)
Definition: hevc_cabac.c:633
int ff_hevc_frame_nb_refs(const HEVCContext *s)
Get the number of candidate references for the current frame.
Definition: hevc_refs.c:503
const uint8_t ff_hevc_qpel_extra_after[4]
int eos
current packet contains an EOS/EOB NAL
Definition: hevcdec.h:512
HEVCSliceType
Definition: hevc.h:95
A reference to a data buffer.
Definition: buffer.h:81
int ff_hevc_sao_merge_flag_decode(HEVCContext *s)
Definition: hevc_cabac.c:561
uint8_t * skip_flag
Definition: hevcdec.h:533
int ff_hevc_cu_transquant_bypass_flag_decode(HEVCContext *s)
Definition: hevc_cabac.c:613
common internal api header.
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
uint8_t * horizontal_bs
Definition: hevcdec.h:527
int32_t * tab_slice_address
Definition: hevcdec.h:530
uint8_t disable_deblocking_filter_flag
slice_header_disable_deblocking_filter_flag
Definition: hevcdec.h:285
const AVClass * c
Definition: hevcdec.h:468
uint8_t * filter_slice_edges
Definition: hevcdec.h:542
uint8_t collocated_list
Definition: hevcdec.h:287
int nal_length_size
Number of bytes used for nal length (1, 2 or 4)
Definition: hevcdec.h:569
int slice_ctb_addr_rs
Definition: hevcdec.h:323
AVBufferPool * tab_mvf_pool
Definition: hevcdec.h:496
Core video DSP helper functions.
int ff_hevc_merge_idx_decode(HEVCContext *s)
Definition: hevc_cabac.c:781
uint8_t slice_loop_filter_across_slices_enabled_flag
Definition: hevcdec.h:286
void ff_hevc_hls_residual_coding(HEVCContext *s, int x0, int y0, int log2_trafo_size, enum ScanType scan_idx, int c_idx)
Definition: hevc_cabac.c:1024
void ff_hevc_hls_filters(HEVCContext *s, int x_ctb, int y_ctb, int ctb_size)
Definition: hevc_filter.c:889
unsigned int collocated_ref_idx
Definition: hevcdec.h:289
Decoded Picture Buffer (DPB).
Definition: vaapi_h264.c:82
CodingUnit cu
Definition: hevcdec.h:454
int ff_hevc_skip_flag_decode(HEVCContext *s, int x0, int y0, int x_cb, int y_cb)
Definition: hevc_cabac.c:618
int beta_offset
Definition: hevcdec.h:386
uint8_t luma_log2_weight_denom
Definition: hevcdec.h:309
HEVCSEI sei
Definition: hevcdec.h:493
H2645Packet pkt
Definition: hevcdec.h:560
int boundary_flags
Definition: hevcdec.h:464
Public header for MD5 hash function implementation.
#define av_always_inline
Definition: attributes.h:45
uint8_t context_initialized
Definition: hevcdec.h:564
AVBufferRef * rpl_buf
Definition: hevcdec.h:407
int is_decoded
Definition: hevcdec.h:519
int ff_hevc_ref_idx_lx_decode(HEVCContext *s, int num_ref_idx_lx)
Definition: hevc_cabac.c:807
uint8_t * cbf_luma
Definition: hevcdec.h:538
void ff_hevc_flush_dpb(HEVCContext *s)
Drop all frames currently in DPB.
Definition: hevc_refs.c:75
SliceHeader sh
Definition: hevcdec.h:502
int no_rasl_output_flag
Definition: hevcdec.h:520
int ff_hevc_cabac_init(HEVCContext *s, int ctb_addr_ts)
Definition: hevc_cabac.c:504
ScanType
Definition: hevcdec.h:225
int width
Definition: hevcdec.h:479
int * offset
Definition: hevcdec.h:303
uint8_t mvd_l1_zero_flag
Definition: hevcdec.h:282
int end_of_tiles_y
Definition: hevcdec.h:446
int ff_hevc_intra_chroma_pred_mode_decode(HEVCContext *s)
Definition: hevc_cabac.c:770
Context Adaptive Binary Arithmetic Coder.
#define MAX_NB_THREADS
Definition: hevcdec.h:45
static uint8_t tmp[11]
Definition: aes_ctr.c:26