FFmpeg
hevcdec.h
Go to the documentation of this file.
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/mem_internal.h"
30 
31 #include "avcodec.h"
32 #include "bswapdsp.h"
33 #include "cabac.h"
34 #include "dovi_rpu.h"
35 #include "get_bits.h"
36 #include "hevcpred.h"
37 #include "h2645_parse.h"
38 #include "hevc.h"
39 #include "hevc_ps.h"
40 #include "hevc_sei.h"
41 #include "hevcdsp.h"
42 #include "h274.h"
43 #include "progressframe.h"
44 #include "videodsp.h"
45 
46 #define SHIFT_CTB_WPP 2
47 
48 #define MAX_TB_SIZE 32
49 #define MAX_QP 51
50 #define DEFAULT_INTRA_TC_OFFSET 2
51 
52 #define HEVC_CONTEXTS 199
53 #define HEVC_STAT_COEFFS 4
54 
55 #define MRG_MAX_NUM_CANDS 5
56 
57 #define L0 0
58 #define L1 1
59 
60 #define EPEL_EXTRA_BEFORE 1
61 #define EPEL_EXTRA_AFTER 2
62 #define EPEL_EXTRA 3
63 #define QPEL_EXTRA_BEFORE 3
64 #define QPEL_EXTRA_AFTER 4
65 #define QPEL_EXTRA 7
66 
67 #define EDGE_EMU_BUFFER_STRIDE 80
68 
69 /**
70  * Value of the luma sample at position (x, y) in the 2D array tab.
71  */
72 #define SAMPLE(tab, x, y) ((tab)[(y) * s->sps->width + (x)])
73 #define SAMPLE_CTB(tab, x, y) ((tab)[(y) * min_cb_width + (x)])
74 
75 #define IS_IDR(s) ((s)->nal_unit_type == HEVC_NAL_IDR_W_RADL || (s)->nal_unit_type == HEVC_NAL_IDR_N_LP)
76 #define IS_BLA(s) ((s)->nal_unit_type == HEVC_NAL_BLA_W_RADL || (s)->nal_unit_type == HEVC_NAL_BLA_W_LP || \
77  (s)->nal_unit_type == HEVC_NAL_BLA_N_LP)
78 #define IS_IRAP(s) ((s)->nal_unit_type >= HEVC_NAL_BLA_W_LP && (s)->nal_unit_type <= HEVC_NAL_RSV_IRAP_VCL23)
79 
80 enum RPSType {
87 };
88 
89 enum PartMode {
91  PART_2NxN = 1,
92  PART_Nx2N = 2,
93  PART_NxN = 3,
98 };
99 
100 enum PredMode {
104 };
105 
107  PRED_L0 = 0,
110 };
111 
112 enum PredFlag {
113  PF_INTRA = 0,
117 };
118 
155 };
156 
157 enum SAOType {
162 };
163 
169 };
170 
171 enum ScanType {
175 };
176 
177 typedef struct HEVCCABACState {
181 
182 typedef struct LongTermRPS {
183  int poc[32];
184  uint8_t poc_msb_present[32];
185  uint8_t used[32];
186  uint8_t nb_refs;
187 } LongTermRPS;
188 
189 typedef struct RefPicList {
193  int nb_refs;
194 } RefPicList;
195 
196 typedef struct RefPicListTab {
198 } RefPicListTab;
199 
200 typedef struct SliceHeader {
201  unsigned int pps_id;
202 
203  ///< address (in raster order) of the first block in the current slice segment
204  unsigned int slice_segment_addr;
205  ///< address (in raster order) of the first block in the current slice
206  unsigned int slice_addr;
207 
209 
211 
216 
217  ///< RPS coded in the slice header itself is stored here
224  unsigned int list_entry_lx[2][32];
225 
229 
230  unsigned int nb_refs[2];
231 
234 
236  uint8_t disable_deblocking_filter_flag; ///< slice_header_disable_deblocking_filter_flag
239 
240  unsigned int collocated_ref_idx;
241 
245 
249 
251 
252  int beta_offset; ///< beta_offset_div2 * 2
253  int tc_offset; ///< tc_offset_div2 * 2
254 
255  uint8_t max_num_merge_cand; ///< 5 - 5_minus_max_num_merge_cand
257 
259  int * offset;
260  int * size;
262 
263  int8_t slice_qp;
264 
267 
268  int16_t luma_weight_l0[16];
269  int16_t chroma_weight_l0[16][2];
270  int16_t chroma_weight_l1[16][2];
271  int16_t luma_weight_l1[16];
272 
273  int16_t luma_offset_l0[16];
274  int16_t chroma_offset_l0[16][2];
275 
276  int16_t luma_offset_l1[16];
277  int16_t chroma_offset_l1[16][2];
278 
280 } SliceHeader;
281 
282 typedef struct CodingUnit {
283  int x;
284  int y;
285 
286  enum PredMode pred_mode; ///< PredMode
287  enum PartMode part_mode; ///< PartMode
288 
289  // Inferred parameters
290  uint8_t intra_split_flag; ///< IntraSplitFlag
291  uint8_t max_trafo_depth; ///< MaxTrafoDepth
293 } CodingUnit;
294 
295 typedef struct Mv {
296  int16_t x; ///< horizontal component of motion vector
297  int16_t y; ///< vertical component of motion vector
298 } Mv;
299 
300 typedef struct MvField {
302  int8_t ref_idx[2];
303  int8_t pred_flag;
304 } MvField;
305 
306 typedef struct NeighbourAvailable {
309  int cand_up;
314 
315 typedef struct PredictionUnit {
316  int mpm_idx;
318  uint8_t intra_pred_mode[4];
320  uint8_t merge_flag;
321  uint8_t intra_pred_mode_c[4];
322  uint8_t chroma_mode_c[4];
324 
325 typedef struct TransformUnit {
327 
329 
330  // Inferred parameters;
338  uint8_t cross_pf;
339 } TransformUnit;
340 
341 typedef struct DBParams {
344 } DBParams;
345 
346 #define HEVC_FRAME_FLAG_OUTPUT (1 << 0)
347 #define HEVC_FRAME_FLAG_SHORT_REF (1 << 1)
348 #define HEVC_FRAME_FLAG_LONG_REF (1 << 2)
349 #define HEVC_FRAME_FLAG_BUMPING (1 << 3)
350 
351 #define HEVC_SEQUENCE_COUNTER_MASK 0xff
352 #define HEVC_SEQUENCE_COUNTER_INVALID (HEVC_SEQUENCE_COUNTER_MASK + 1)
353 
354 typedef struct HEVCFrame {
355  union {
356  struct {
358  };
360  };
362  int needs_fg; /* 1 if grain needs to be applied by the decoder */
363  MvField *tab_mvf; ///< RefStruct reference
365  RefPicListTab **rpl_tab; ///< RefStruct reference
367  int poc;
368 
369  RefPicListTab *rpl; ///< RefStruct reference
371 
372  void *hwaccel_picture_private; ///< RefStruct reference
373 
374  /**
375  * A sequence counter, so that old frames are output first
376  * after a POC reset
377  */
378  uint16_t sequence;
379 
380  /**
381  * A combination of HEVC_FRAME_FLAG_*
382  */
383  uint8_t flags;
384 } HEVCFrame;
385 
386 typedef struct HEVCLocalContext {
388 
390 
391  uint8_t first_qp_group;
392 
393  void *logctx;
394  const struct HEVCContext *parent;
395 
398 
399  /**
400  * This is a pointer to the common CABAC state.
401  * In case entropy_coding_sync_enabled_flag is set,
402  * the CABAC state after decoding the second CTU in a row is
403  * stored here and used to initialize the CABAC state before
404  * decoding the first CTU in the next row.
405  * This is the basis for WPP and in case slice-threading is used,
406  * the next row is decoded by another thread making this state
407  * shared between threads.
408  */
410 
411  int8_t qp_y;
412  int8_t curr_qp_y;
413 
414  int qPy_pred;
415 
417 
418  uint8_t ctb_left_flag;
419  uint8_t ctb_up_flag;
424  /* +7 is for subpixel interpolation, *2 for high bit depths */
426  /* The extended size between the new edge emu buffer is abused by SAO */
429 
430  int ct_depth;
434 
435 #define BOUNDARY_LEFT_SLICE (1 << 0)
436 #define BOUNDARY_LEFT_TILE (1 << 1)
437 #define BOUNDARY_UPPER_SLICE (1 << 2)
438 #define BOUNDARY_UPPER_TILE (1 << 3)
439  /* properties of the boundary of the current CTB for the purposes
440  * of the deblocking filter */
443 
444 typedef struct HEVCContext {
445  const AVClass *c; // needed by private avoptions
447 
450 
451  uint8_t threads_type;
452  uint8_t threads_number;
453 
454  int width;
455  int height;
456 
457  /** 1 if the independent slice segment header was successfully parsed */
459 
462  uint8_t *sao_pixel_buffer_h[3];
463  uint8_t *sao_pixel_buffer_v[3];
464 
467  struct AVMD5 *md5_ctx;
468 
471 
472  ///< candidate references for the current frame
474 
479  int temporal_id; ///< temporal_id_plus1 - 1
483  int poc;
484  int pocTid0;
485  int slice_idx; ///< number of the slice being currently decoded
486  int eos; ///< current packet contains an EOS/EOB NAL
487  int last_eos; ///< last packet contains an EOS/EOB NAL
488  int max_ra;
489  int bs_width;
491  int overlap;
492 
495 
501  int8_t *qp_y_tab;
502  uint8_t *horizontal_bs;
503  uint8_t *vertical_bs;
504 
506 
507  // CU
508  uint8_t *skip_flag;
509  uint8_t *tab_ct_depth;
510  // PU
511  uint8_t *tab_ipm;
512 
513  uint8_t *cbf_luma; // cbf_luma of colocated TU
514  uint8_t *is_pcm;
515 
516  // CTB-level flags affecting loop filter operation
518 
519  /** used on BE to byteswap the lines for checksumming */
520  uint8_t *checksum_buf;
522 
523  /**
524  * Sequence counters for decoded and output frames, so that old
525  * frames are output first after a POC reset
526  */
527  uint16_t seq_decode;
528  uint16_t seq_output;
529 
530  /** The target for the common_cabac_state of the local contexts. */
532 
535 
536  const uint8_t *data;
537 
539  // type of the first VCL NAL of the current frame
541 
542  int is_nalff; ///< this flag is != 0 if bitstream is encapsulated
543  ///< as a format defined in 14496-15
545 
546  int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
548 
550 
551  AVBufferRef *rpu_buf; ///< 0 or 1 Dolby Vision RPUs.
552  DOVIContext dovi_ctx; ///< Dolby Vision decoding context
553 } HEVCContext;
554 
555 /**
556  * Mark all frames in DPB as unused for reference.
557  */
559 
560 /**
561  * Drop all frames currently in DPB.
562  */
564 
566  int x0, int y0);
567 
568 /**
569  * Construct the reference picture sets for the current frame.
570  */
572 
573 /**
574  * Construct the reference picture list(s) for the current slice.
575  */
577 
578 void ff_hevc_save_states(HEVCLocalContext *lc, int ctb_addr_ts);
579 int ff_hevc_cabac_init(HEVCLocalContext *lc, int ctb_addr_ts);
588 int ff_hevc_skip_flag_decode(HEVCLocalContext *lc, int x0, int y0,
589  int x_cb, int y_cb);
592  int x0, int y0);
593 int ff_hevc_part_mode_decode(HEVCLocalContext *lc, int log2_cb_size);
601 int ff_hevc_inter_pred_idc_decode(HEVCLocalContext *lc, int nPbW, int nPbH);
602 int ff_hevc_ref_idx_lx_decode(HEVCLocalContext *lc, int num_ref_idx_lx);
605 int ff_hevc_split_transform_flag_decode(HEVCLocalContext *lc, int log2_trafo_size);
606 int ff_hevc_cbf_cb_cr_decode(HEVCLocalContext *lc, int trafo_depth);
607 int ff_hevc_cbf_luma_decode(HEVCLocalContext *lc, int trafo_depth);
610 
611 /**
612  * Get the number of candidate references for the current frame.
613  */
615 
616 int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc);
617 
619 {
620  switch (type) {
621  case HEVC_NAL_TRAIL_N:
622  case HEVC_NAL_TSA_N:
623  case HEVC_NAL_STSA_N:
624  case HEVC_NAL_RADL_N:
625  case HEVC_NAL_RASL_N:
626  case HEVC_NAL_VCL_N10:
627  case HEVC_NAL_VCL_N12:
628  case HEVC_NAL_VCL_N14:
629  return 1;
630  default: break;
631  }
632  return 0;
633 }
634 
635 /**
636  * Find next frame in output order and put a reference to it in frame.
637  * @return 1 if a frame was output, 0 otherwise
638  */
640 
642 
644 
645 void ff_hevc_set_neighbour_available(HEVCLocalContext *lc, int x0, int y0,
646  int nPbW, int nPbH);
647 void ff_hevc_luma_mv_merge_mode(HEVCLocalContext *lc, int x0, int y0,
648  int nPbW, int nPbH, int log2_cb_size,
649  int part_idx, int merge_idx, MvField *mv);
650 void ff_hevc_luma_mv_mvp_mode(HEVCLocalContext *lc, int x0, int y0,
651  int nPbW, int nPbH, int log2_cb_size,
652  int part_idx, int merge_idx,
653  MvField *mv, int mvp_lx_flag, int LX);
654 void ff_hevc_hls_filter(HEVCLocalContext *lc, int x, int y, int ctb_size);
655 void ff_hevc_hls_filters(HEVCLocalContext *lc, int x_ctb, int y_ctb, int ctb_size);
656 void ff_hevc_set_qPy(HEVCLocalContext *lc, int xBase, int yBase,
657  int log2_cb_size);
659  int log2_trafo_size);
664 void ff_hevc_hls_residual_coding(HEVCLocalContext *lc, int x0, int y0,
665  int log2_trafo_size, enum ScanType scan_idx,
666  int c_idx);
667 
668 void ff_hevc_hls_mvd_coding(HEVCLocalContext *lc, int x0, int y0, int log2_cb_size);
669 
670 extern const uint8_t ff_hevc_qpel_extra_before[4];
671 extern const uint8_t ff_hevc_qpel_extra_after[4];
672 extern const uint8_t ff_hevc_qpel_extra[4];
673 
674 #endif /* AVCODEC_HEVCDEC_H */
HEVCLocalContext::na
NeighbourAvailable na
Definition: hevcdec.h:433
HEVCContext::seq_decode
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:527
HEVCContext::temporal_id
int temporal_id
temporal_id_plus1 - 1
Definition: hevcdec.h:479
ff_hevc_cabac_init
int ff_hevc_cabac_init(HEVCLocalContext *lc, int ctb_addr_ts)
Definition: hevc_cabac.c:464
HEVC_NAL_RADL_N
@ HEVC_NAL_RADL_N
Definition: hevc.h:35
SliceHeader::beta_offset
int beta_offset
beta_offset_div2 * 2
Definition: hevcdec.h:252
HEVCContext::skip_flag
uint8_t * skip_flag
Definition: hevcdec.h:508
bswapdsp.h
DBParams
Definition: hevcdec.h:341
ff_hevc_get_ref_list
const RefPicList * ff_hevc_get_ref_list(const HEVCContext *s, const HEVCFrame *frame, int x0, int y0)
Definition: hevc_refs.c:51
HEVCContext::filter_slice_edges
uint8_t * filter_slice_edges
Definition: hevcdec.h:517
HEVCLocalContext
Definition: hevcdec.h:386
HEVCFrame::flags
uint8_t flags
A combination of HEVC_FRAME_FLAG_*.
Definition: hevcdec.h:383
SliceHeader::slice_act_cr_qp_offset
int slice_act_cr_qp_offset
Definition: hevcdec.h:248
INTRA_ANGULAR_28
@ INTRA_ANGULAR_28
Definition: hevcdec.h:148
h2645_parse.h
SliceHeader::chroma_offset_l1
int16_t chroma_offset_l1[16][2]
Definition: hevcdec.h:277
LT_FOLL
@ LT_FOLL
Definition: hevcdec.h:85
HEVCContext::seq_output
uint16_t seq_output
Definition: hevcdec.h:528
SAO_EO_45D
@ SAO_EO_45D
Definition: hevcdec.h:168
cabac.h
HEVCSliceType
HEVCSliceType
Definition: hevc.h:95
HEVCContext::nuh_layer_id
int nuh_layer_id
Definition: hevcdec.h:547
INTRA_ANGULAR_29
@ INTRA_ANGULAR_29
Definition: hevcdec.h:149
ff_hevc_bump_frame
void ff_hevc_bump_frame(HEVCContext *s)
Definition: hevc_refs.c:243
PART_NxN
@ PART_NxN
Definition: hevcdec.h:93
mem_internal.h
INTRA_ANGULAR_30
@ INTRA_ANGULAR_30
Definition: hevcdec.h:150
SliceHeader::slice_act_y_qp_offset
int slice_act_y_qp_offset
Definition: hevcdec.h:246
INTRA_ANGULAR_34
@ INTRA_ANGULAR_34
Definition: hevcdec.h:154
INTRA_ANGULAR_27
@ INTRA_ANGULAR_27
Definition: hevcdec.h:147
SAO_APPLIED
@ SAO_APPLIED
Definition: hevcdec.h:161
SAO_BAND
@ SAO_BAND
Definition: hevcdec.h:159
INTRA_ANGULAR_2
@ INTRA_ANGULAR_2
Definition: hevcdec.h:122
HEVCContext::slice_initialized
uint8_t slice_initialized
1 if the independent slice segment header was successfully parsed
Definition: hevcdec.h:458
ff_hevc_res_scale_sign_flag
int ff_hevc_res_scale_sign_flag(HEVCLocalContext *lc, int idx)
Definition: hevc_cabac.c:871
HEVCLocalContext::ctb_up_flag
uint8_t ctb_up_flag
Definition: hevcdec.h:419
CodingUnit
Definition: hevcdec.h:282
HEVCFrame::needs_fg
int needs_fg
Definition: hevcdec.h:362
mv
static const int8_t mv[256][2]
Definition: 4xm.c:81
SliceHeader::num_entry_point_offsets
int num_entry_point_offsets
Definition: hevcdec.h:261
HEVC_NAL_STSA_N
@ HEVC_NAL_STSA_N
Definition: hevc.h:33
HEVCFrame::frame_grain
AVFrame * frame_grain
Definition: hevcdec.h:361
PART_2NxnU
@ PART_2NxnU
Definition: hevcdec.h:94
HEVCContext::md5_ctx
struct AVMD5 * md5_ctx
Definition: hevcdec.h:467
HEVCContext::deblock
DBParams * deblock
Definition: hevcdec.h:477
ff_hevc_flush_dpb
void ff_hevc_flush_dpb(HEVCContext *s)
Drop all frames currently in DPB.
Definition: hevc_refs.c:70
ff_hevc_part_mode_decode
int ff_hevc_part_mode_decode(HEVCLocalContext *lc, int log2_cb_size)
Definition: hevc_cabac.c:670
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:374
ff_hevc_hls_filter
void ff_hevc_hls_filter(HEVCLocalContext *lc, int x, int y, int ctb_size)
Definition: hevc_filter.c:851
ff_hevc_sao_type_idx_decode
int ff_hevc_sao_type_idx_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:528
HEVCFrame::tab_mvf
MvField * tab_mvf
RefStruct reference.
Definition: hevcdec.h:363
TransformUnit::cu_qp_delta
int cu_qp_delta
Definition: hevcdec.h:326
ScanType
ScanType
Definition: hevcdec.h:171
ff_hevc_intra_chroma_pred_mode_decode
int ff_hevc_intra_chroma_pred_mode_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:735
HEVC_NAL_TSA_N
@ HEVC_NAL_TSA_N
Definition: hevc.h:31
HEVCFrame::hwaccel_picture_private
void * hwaccel_picture_private
RefStruct reference.
Definition: hevcdec.h:372
NeighbourAvailable::cand_left
int cand_left
Definition: hevcdec.h:308
NeighbourAvailable::cand_up
int cand_up
Definition: hevcdec.h:309
ff_hevc_qpel_extra_before
const uint8_t ff_hevc_qpel_extra_before[4]
INTRA_DC
@ INTRA_DC
Definition: hevcdec.h:121
HEVCContext::collocated_ref
HEVCFrame * collocated_ref
Definition: hevcdec.h:481
HEVCContext::no_rasl_output_flag
int no_rasl_output_flag
Definition: hevcdec.h:494
NeighbourAvailable::cand_up_right
int cand_up_right
Definition: hevcdec.h:311
Mv::y
int16_t y
vertical component of motion vector
Definition: hevcdec.h:297
HEVCContext::checksum_buf_size
int checksum_buf_size
Definition: hevcdec.h:521
SAO_EDGE
@ SAO_EDGE
Definition: hevcdec.h:160
atomic_int
intptr_t atomic_int
Definition: stdatomic.h:55
SliceHeader::slice_temporal_mvp_enabled_flag
uint8_t slice_temporal_mvp_enabled_flag
Definition: hevcdec.h:228
ff_hevc_rem_intra_luma_pred_mode_decode
int ff_hevc_rem_intra_luma_pred_mode_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:725
TransformUnit::is_cu_qp_delta_coded
uint8_t is_cu_qp_delta_coded
Definition: hevcdec.h:334
HEVC_NAL_RASL_N
@ HEVC_NAL_RASL_N
Definition: hevc.h:37
MODE_INTRA
@ MODE_INTRA
Definition: hevcdec.h:102
HEVCContext::output_frame
AVFrame * output_frame
Definition: hevcdec.h:461
HEVCContext::sao_pixel_buffer_h
uint8_t * sao_pixel_buffer_h[3]
Definition: hevcdec.h:462
HEVCContext::data
const uint8_t * data
Definition: hevcdec.h:536
SliceHeader::slice_loop_filter_across_slices_enabled_flag
uint8_t slice_loop_filter_across_slices_enabled_flag
Definition: hevcdec.h:237
ff_hevc_sao_eo_class_decode
int ff_hevc_sao_eo_class_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:563
HEVCLocalContext::ctb_up_left_flag
uint8_t ctb_up_left_flag
Definition: hevcdec.h:421
HEVCContext::bdsp
BswapDSPContext bdsp
Definition: hevcdec.h:499
ff_hevc_cu_qp_delta_abs
int ff_hevc_cu_qp_delta_abs(HEVCLocalContext *lc)
Definition: hevc_cabac.c:596
DPB
Decoded Picture Buffer (DPB).
Definition: vaapi_h264.c:82
ff_hevc_ref_idx_lx_decode
int ff_hevc_ref_idx_lx_decode(HEVCLocalContext *lc, int num_ref_idx_lx)
Definition: hevc_cabac.c:772
HEVCContext::checksum_buf
uint8_t * checksum_buf
used on BE to byteswap the lines for checksumming
Definition: hevcdec.h:520
INTRA_ANGULAR_9
@ INTRA_ANGULAR_9
Definition: hevcdec.h:129
RefPicList
Definition: hevcdec.h:189
ff_hevc_output_frame
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:175
PF_INTRA
@ PF_INTRA
Definition: hevcdec.h:113
INTRA_ANGULAR_10
@ INTRA_ANGULAR_10
Definition: hevcdec.h:130
ff_hevc_cbf_luma_decode
int ff_hevc_cbf_luma_decode(HEVCLocalContext *lc, int trafo_depth)
Definition: hevc_cabac.c:841
MODE_SKIP
@ MODE_SKIP
Definition: hevcdec.h:103
HEVCLocalContext::end_of_tiles_x
int end_of_tiles_x
Definition: hevcdec.h:422
CodingUnit::x
int x
Definition: hevcdec.h:283
SAOType
SAOType
Definition: hevcdec.h:157
PART_2Nx2N
@ PART_2Nx2N
Definition: hevcdec.h:90
ff_hevc_cbf_cb_cr_decode
int ff_hevc_cbf_cb_cr_decode(HEVCLocalContext *lc, int trafo_depth)
Definition: hevc_cabac.c:836
HEVCLocalContext::ctb_up_right_flag
uint8_t ctb_up_right_flag
Definition: hevcdec.h:420
HEVCLocalContext::common_cabac_state
HEVCCABACState * common_cabac_state
This is a pointer to the common CABAC state.
Definition: hevcdec.h:409
SAO_EO_135D
@ SAO_EO_135D
Definition: hevcdec.h:167
PRED_BI
@ PRED_BI
Definition: hevcdec.h:109
HEVCContext::frame
AVFrame * frame
Definition: hevcdec.h:460
ff_hevc_cu_qp_delta_sign_flag
int ff_hevc_cu_qp_delta_sign_flag(HEVCLocalContext *lc)
Definition: hevc_cabac.c:623
DOVIContext
Definition: dovi_rpu.h:32
ff_hevc_end_of_slice_flag_decode
int ff_hevc_end_of_slice_flag_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:570
INTRA_ANGULAR_3
@ INTRA_ANGULAR_3
Definition: hevcdec.h:123
PredictionUnit::intra_pred_mode_c
uint8_t intra_pred_mode_c[4]
Definition: hevcdec.h:321
PredictionUnit
Definition: hevcdec.h:315
HEVCContext::tab_mvf_pool
struct FFRefStructPool * tab_mvf_pool
Definition: hevcdec.h:469
InterPredIdc
InterPredIdc
Definition: hevcdec.h:106
MODE_INTER
@ MODE_INTER
Definition: hevcdec.h:101
GetBitContext
Definition: get_bits.h:108
SliceHeader::luma_log2_weight_denom
uint8_t luma_log2_weight_denom
Definition: hevcdec.h:265
HEVCLocalContext::pu
PredictionUnit pu
Definition: hevcdec.h:432
HEVCContext::is_decoded
int is_decoded
Definition: hevcdec.h:493
TransformUnit::res_scale_val
int res_scale_val
Definition: hevcdec.h:328
SliceHeader::short_term_ref_pic_set_size
int short_term_ref_pic_set_size
Definition: hevcdec.h:219
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
dovi_rpu.h
SliceHeader::long_term_ref_pic_set_size
int long_term_ref_pic_set_size
Definition: hevcdec.h:222
RefPicList::nb_refs
int nb_refs
Definition: hevcdec.h:193
HEVCContext::h274db
H274FilmGrainDatabase h274db
Definition: hevcdec.h:500
HEVCContext::bs_width
int bs_width
Definition: hevcdec.h:489
AVMD5
Definition: md5.c:42
progressframe.h
ff_hevc_cu_chroma_qp_offset_idx
int ff_hevc_cu_chroma_qp_offset_idx(HEVCLocalContext *lc)
Definition: hevc_cabac.c:633
SliceHeader::slice_segment_addr
unsigned int slice_segment_addr
address (in raster order) of the first block in the current slice
Definition: hevcdec.h:204
HEVCContext::apply_defdispwin
int apply_defdispwin
Definition: hevcdec.h:544
ff_hevc_luma_mv_mvp_mode
void ff_hevc_luma_mv_mvp_mode(HEVCLocalContext *lc, 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:583
TransformUnit::intra_pred_mode
int intra_pred_mode
Definition: hevcdec.h:331
hevcpred.h
SliceHeader::cabac_init_flag
uint8_t cabac_init_flag
Definition: hevcdec.h:235
DBParams::beta_offset
int beta_offset
Definition: hevcdec.h:342
HEVCLocalContext::curr_qp_y
int8_t curr_qp_y
Definition: hevcdec.h:412
DBParams::tc_offset
int tc_offset
Definition: hevcdec.h:343
INTRA_ANGULAR_23
@ INTRA_ANGULAR_23
Definition: hevcdec.h:143
HEVCContext::tab_ipm
uint8_t * tab_ipm
Definition: hevcdec.h:511
HEVCContext::max_ra
int max_ra
Definition: hevcdec.h:488
HEVCLocalContext::parent
const struct HEVCContext * parent
Definition: hevcdec.h:394
s
#define s(width, name)
Definition: cbs_vp9.c:198
NeighbourAvailable::cand_bottom_left
int cand_bottom_left
Definition: hevcdec.h:307
ff_hevc_save_states
void ff_hevc_save_states(HEVCLocalContext *lc, int ctb_addr_ts)
Definition: hevc_cabac.c:402
HEVCContext::c
const AVClass * c
Definition: hevcdec.h:445
HEVCContext::rps
RefPicList rps[5]
Definition: hevcdec.h:473
SAO_NOT_APPLIED
@ SAO_NOT_APPLIED
Definition: hevcdec.h:158
HEVCContext::last_eos
int last_eos
last packet contains an EOS/EOB NAL
Definition: hevcdec.h:487
HEVC_NAL_VCL_N14
@ HEVC_NAL_VCL_N14
Definition: hevc.h:43
SliceHeader::luma_offset_l1
int16_t luma_offset_l1[16]
Definition: hevcdec.h:276
INTRA_ANGULAR_14
@ INTRA_ANGULAR_14
Definition: hevcdec.h:134
HEVC_NAL_VCL_N12
@ HEVC_NAL_VCL_N12
Definition: hevc.h:41
HEVCContext::slice_idx
int slice_idx
number of the slice being currently decoded
Definition: hevcdec.h:485
ff_hevc_nal_is_nonref
static av_always_inline int ff_hevc_nal_is_nonref(enum HEVCNALUnitType type)
Definition: hevcdec.h:618
ff_hevc_set_new_ref
int ff_hevc_set_new_ref(HEVCContext *s, AVFrame **frame, int poc)
Definition: hevc_refs.c:125
HEVCSEI
Definition: hevc_sei.h:81
ff_hevc_frame_rps
int ff_hevc_frame_rps(HEVCContext *s)
Construct the reference picture sets for the current frame.
Definition: hevc_refs.c:468
INTRA_ANGULAR_12
@ INTRA_ANGULAR_12
Definition: hevcdec.h:132
SliceHeader::slice_rps
ShortTermRPS slice_rps
Definition: hevcdec.h:220
ff_hevc_qpel_extra
const uint8_t ff_hevc_qpel_extra[4]
HEVCPredContext
Definition: hevcpred.h:31
HEVCFrame::rpl
RefPicListTab * rpl
RefStruct reference.
Definition: hevcdec.h:369
RPSType
RPSType
Definition: hevcdec.h:80
get_bits.h
ff_hevc_deblocking_boundary_strengths
void ff_hevc_deblocking_boundary_strengths(HEVCLocalContext *lc, int x0, int y0, int log2_trafo_size)
Definition: hevc_filter.c:723
INTRA_ANGULAR_18
@ INTRA_ANGULAR_18
Definition: hevcdec.h:138
RefPicList::ref
struct HEVCFrame * ref[HEVC_MAX_REFS]
Definition: hevcdec.h:190
HEVCContext::height
int height
Definition: hevcdec.h:455
ff_hevc_hls_residual_coding
void ff_hevc_hls_residual_coding(HEVCLocalContext *lc, int x0, int y0, int log2_trafo_size, enum ScanType scan_idx, int c_idx)
Definition: hevc_cabac.c:991
SliceHeader::size
int * size
Definition: hevcdec.h:260
FFRefStructPool
FFRefStructPool is an API for a thread-safe pool of objects managed via the RefStruct API.
Definition: refstruct.c:183
SliceHeader::collocated_list
uint8_t collocated_list
Definition: hevcdec.h:238
HEVCContext::ref
HEVCFrame * ref
Definition: hevcdec.h:480
SliceHeader::luma_offset_l0
int16_t luma_offset_l0[16]
Definition: hevcdec.h:273
NeighbourAvailable::cand_up_right_sap
int cand_up_right_sap
Definition: hevcdec.h:312
INTRA_ANGULAR_26
@ INTRA_ANGULAR_26
Definition: hevcdec.h:146
SliceHeader::chroma_weight_l1
int16_t chroma_weight_l1[16][2]
Definition: hevcdec.h:270
CodingUnit::max_trafo_depth
uint8_t max_trafo_depth
MaxTrafoDepth.
Definition: hevcdec.h:291
SliceHeader::slice_ctb_addr_rs
int slice_ctb_addr_rs
Definition: hevcdec.h:279
HEVC_NAL_VCL_N10
@ HEVC_NAL_VCL_N10
Definition: hevc.h:39
HEVCContext::nal_unit_type
enum HEVCNALUnitType nal_unit_type
Definition: hevcdec.h:478
SliceHeader::pic_output_flag
uint8_t pic_output_flag
Definition: hevcdec.h:214
hevcdsp.h
HEVCFrame::refPicList
RefPicList * refPicList
Definition: hevcdec.h:364
PredictionUnit::rem_intra_luma_pred_mode
int rem_intra_luma_pred_mode
Definition: hevcdec.h:317
INTRA_ANGULAR_11
@ INTRA_ANGULAR_11
Definition: hevcdec.h:131
HEVCContext::sei
HEVCSEI sei
Definition: hevcdec.h:466
HEVCContext::enable_parallel_tiles
int enable_parallel_tiles
Definition: hevcdec.h:533
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
INTRA_ANGULAR_15
@ INTRA_ANGULAR_15
Definition: hevcdec.h:135
HEVCCABACState::state
uint8_t state[HEVC_CONTEXTS]
Definition: hevcdec.h:178
HEVCContext::width
int width
Definition: hevcdec.h:454
INTRA_ANGULAR_22
@ INTRA_ANGULAR_22
Definition: hevcdec.h:142
HEVCLocalContext::tmp
int16_t tmp[MAX_PB_SIZE *MAX_PB_SIZE]
Definition: hevcdec.h:428
ff_hevc_merge_flag_decode
int ff_hevc_merge_flag_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:757
LongTermRPS::poc
int poc[32]
Definition: hevcdec.h:183
HEVCContext::qp_y_tab
int8_t * qp_y_tab
Definition: hevcdec.h:501
CodingUnit::cu_transquant_bypass_flag
uint8_t cu_transquant_bypass_flag
Definition: hevcdec.h:292
HEVCLocalContext::first_qp_group
uint8_t first_qp_group
Definition: hevcdec.h:391
HEVCContext::cbf_luma
uint8_t * cbf_luma
Definition: hevcdec.h:513
HEVCFrame::rpl_tab
RefPicListTab ** rpl_tab
RefStruct reference.
Definition: hevcdec.h:365
flush
void(* flush)(AVBSFContext *ctx)
Definition: dts2pts.c:368
HEVCContext::threads_type
uint8_t threads_type
Definition: hevcdec.h:451
LongTermRPS::poc_msb_present
uint8_t poc_msb_present[32]
Definition: hevcdec.h:184
ff_hevc_split_transform_flag_decode
int ff_hevc_split_transform_flag_decode(HEVCLocalContext *lc, int log2_trafo_size)
Definition: hevc_cabac.c:831
HEVCContext::film_grain_warning_shown
int film_grain_warning_shown
Definition: hevcdec.h:549
PART_Nx2N
@ PART_Nx2N
Definition: hevcdec.h:92
RefPicListTab
Definition: hevcdec.h:196
h274.h
HEVCContext::is_nalff
int is_nalff
this flag is != 0 if bitstream is encapsulated as a format defined in 14496-15
Definition: hevcdec.h:542
SliceHeader::nb_refs
unsigned int nb_refs[2]
Definition: hevcdec.h:230
Mv::x
int16_t x
horizontal component of motion vector
Definition: hevcdec.h:296
INTRA_ANGULAR_5
@ INTRA_ANGULAR_5
Definition: hevcdec.h:125
PF_BI
@ PF_BI
Definition: hevcdec.h:116
HEVCContext::poc
int poc
Definition: hevcdec.h:483
INTRA_ANGULAR_16
@ INTRA_ANGULAR_16
Definition: hevcdec.h:136
SCAN_HORIZ
@ SCAN_HORIZ
Definition: hevcdec.h:173
TransformUnit
Definition: hevcdec.h:325
HEVCLocalContext::edge_emu_buffer
uint8_t edge_emu_buffer[(MAX_PB_SIZE+7) *EDGE_EMU_BUFFER_STRIDE *2]
Definition: hevcdec.h:425
ff_hevc_sao_offset_abs_decode
int ff_hevc_sao_offset_abs_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:548
LongTermRPS::used
uint8_t used[32]
Definition: hevcdec.h:185
SliceHeader::colour_plane_id
uint8_t colour_plane_id
RPS coded in the slice header itself is stored here.
Definition: hevcdec.h:215
PART_nLx2N
@ PART_nLx2N
Definition: hevcdec.h:96
HEVCContext::nal_length_size
int nal_length_size
Number of bytes used for nal length (1, 2 or 4)
Definition: hevcdec.h:546
SliceHeader::dependent_slice_segment_flag
uint8_t dependent_slice_segment_flag
Definition: hevcdec.h:213
ff_hevc_luma_mv_merge_mode
void ff_hevc_luma_mv_merge_mode(HEVCLocalContext *lc, int x0, int y0, int nPbW, int nPbH, int log2_cb_size, int part_idx, int merge_idx, MvField *mv)
Definition: hevc_mvs.c:480
SliceHeader::slice_act_cb_qp_offset
int slice_act_cb_qp_offset
Definition: hevcdec.h:247
ST_FOLL
@ ST_FOLL
Definition: hevcdec.h:83
HEVCContext::bs_height
int bs_height
Definition: hevcdec.h:490
SliceHeader::first_slice_in_pic_flag
uint8_t first_slice_in_pic_flag
Definition: hevcdec.h:212
HEVCLocalContext::ctb_left_flag
uint8_t ctb_left_flag
Definition: hevcdec.h:418
H274FilmGrainDatabase
Definition: h274.h:34
ff_hevc_cu_transquant_bypass_flag_decode
int ff_hevc_cu_transquant_bypass_flag_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:575
HEVCContext::sao
SAOParams * sao
Definition: hevcdec.h:476
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem_internal.h:109
ff_hevc_skip_flag_decode
int ff_hevc_skip_flag_decode(HEVCLocalContext *lc, int x0, int y0, int x_cb, int y_cb)
Definition: hevc_cabac.c:580
INTRA_ANGULAR_17
@ INTRA_ANGULAR_17
Definition: hevcdec.h:137
ff_hevc_unref_frame
void ff_hevc_unref_frame(HEVCFrame *frame, int flags)
Definition: hevc_refs.c:32
ff_hevc_mpm_idx_decode
int ff_hevc_mpm_idx_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:717
INTRA_PLANAR
@ INTRA_PLANAR
Definition: hevcdec.h:120
HEVCLocalContext::cabac_state
uint8_t cabac_state[HEVC_CONTEXTS]
Definition: hevcdec.h:387
PART_2NxnD
@ PART_2NxnD
Definition: hevcdec.h:95
HEVCContext::tab_slice_address
int32_t * tab_slice_address
Definition: hevcdec.h:505
PartMode
PartMode
Definition: hevcdec.h:89
SCAN_VERT
@ SCAN_VERT
Definition: hevcdec.h:174
SliceHeader::collocated_ref_idx
unsigned int collocated_ref_idx
Definition: hevcdec.h:240
SliceHeader::entry_point_offset
unsigned * entry_point_offset
Definition: hevcdec.h:258
TransformUnit::chroma_mode_c
int chroma_mode_c
Definition: hevcdec.h:333
SliceHeader::short_term_ref_pic_set_sps_flag
int short_term_ref_pic_set_sps_flag
Definition: hevcdec.h:218
SliceHeader::no_output_of_prior_pics_flag
uint8_t no_output_of_prior_pics_flag
Definition: hevcdec.h:227
HEVCContext::pocTid0
int pocTid0
Definition: hevcdec.h:484
MvField
Definition: hevcdec.h:300
buffer.h
PF_L1
@ PF_L1
Definition: hevcdec.h:115
HEVCContext::tab_ct_depth
uint8_t * tab_ct_depth
Definition: hevcdec.h:509
HEVC_STAT_COEFFS
#define HEVC_STAT_COEFFS
Definition: hevcdec.h:53
HEVCDSPContext
Definition: hevcdsp.h:47
HEVCContext::dovi_ctx
DOVIContext dovi_ctx
Dolby Vision decoding context.
Definition: hevcdec.h:552
SliceHeader::chroma_weight_l0
int16_t chroma_weight_l0[16][2]
Definition: hevcdec.h:269
HEVC_MAX_REFS
@ HEVC_MAX_REFS
Definition: hevc.h:119
ff_hevc_no_residual_syntax_flag_decode
int ff_hevc_no_residual_syntax_flag_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:793
HEVCContext::horizontal_bs
uint8_t * horizontal_bs
Definition: hevcdec.h:502
HEVCContext::ps
HEVCParamSets ps
Definition: hevcdec.h:465
TransformUnit::cu_qp_offset_cb
int8_t cu_qp_offset_cb
Definition: hevcdec.h:336
SliceHeader::chroma_log2_weight_denom
int16_t chroma_log2_weight_denom
Definition: hevcdec.h:266
MvField::pred_flag
int8_t pred_flag
Definition: hevcdec.h:303
HEVCLocalContext::ct_depth
int ct_depth
Definition: hevcdec.h:430
INTRA_ANGULAR_7
@ INTRA_ANGULAR_7
Definition: hevcdec.h:127
PART_nRx2N
@ PART_nRx2N
Definition: hevcdec.h:97
SliceHeader::slice_cb_qp_offset
int slice_cb_qp_offset
Definition: hevcdec.h:243
SliceHeader
Definition: hevcdec.h:200
HEVCFrame::frame
AVFrame * frame
Definition: hevcdec.h:357
INTRA_ANGULAR_8
@ INTRA_ANGULAR_8
Definition: hevcdec.h:128
ff_hevc_inter_pred_idc_decode
int ff_hevc_inter_pred_idc_decode(HEVCLocalContext *lc, int nPbW, int nPbH)
Definition: hevc_cabac.c:762
HEVCContext::cabac
HEVCCABACState cabac
The target for the common_cabac_state of the local contexts.
Definition: hevcdec.h:531
HEVCContext::avctx
AVCodecContext * avctx
Definition: hevcdec.h:446
SliceHeader::slice_sample_adaptive_offset_flag
uint8_t slice_sample_adaptive_offset_flag[3]
Definition: hevcdec.h:232
hevc_ps.h
INTRA_ANGULAR_32
@ INTRA_ANGULAR_32
Definition: hevcdec.h:152
INTRA_ANGULAR_21
@ INTRA_ANGULAR_21
Definition: hevcdec.h:141
HEVCFrame
Definition: hevcdec.h:354
HEVCFrame::tf
ProgressFrame tf
Definition: hevcdec.h:359
NeighbourAvailable::cand_up_left
int cand_up_left
Definition: hevcdec.h:310
INTRA_ANGULAR_6
@ INTRA_ANGULAR_6
Definition: hevcdec.h:126
ff_hevc_sao_merge_flag_decode
int ff_hevc_sao_merge_flag_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:523
ff_hevc_hls_filters
void ff_hevc_hls_filters(HEVCLocalContext *lc, int x_ctb, int y_ctb, int ctb_size)
Definition: hevc_filter.c:888
HEVCLocalContext::gb
GetBitContext gb
Definition: hevcdec.h:396
HEVCFrame::nb_rpl_elems
int nb_rpl_elems
Definition: hevcdec.h:370
MAX_PB_SIZE
#define MAX_PB_SIZE
Definition: hevcdsp.h:32
HEVCLocalContext::logctx
void * logctx
Definition: hevcdec.h:393
HEVCFrame::ctb_count
int ctb_count
Definition: hevcdec.h:366
RefPicList::list
int list[HEVC_MAX_REFS]
Definition: hevcdec.h:191
SliceHeader::offset
int * offset
Definition: hevcdec.h:259
HEVCFrame::sequence
uint16_t sequence
A sequence counter, so that old frames are output first after a POC reset.
Definition: hevcdec.h:378
HEVCContext::pkt
H2645Packet pkt
Definition: hevcdec.h:538
SliceHeader::mvd_l1_zero_flag
uint8_t mvd_l1_zero_flag
Definition: hevcdec.h:233
av_always_inline
#define av_always_inline
Definition: attributes.h:49
PF_L0
@ PF_L0
Definition: hevcdec.h:114
EDGE_EMU_BUFFER_STRIDE
#define EDGE_EMU_BUFFER_STRIDE
Definition: hevcdec.h:67
INTRA_ANGULAR_19
@ INTRA_ANGULAR_19
Definition: hevcdec.h:139
ff_hevc_pred_mode_decode
int ff_hevc_pred_mode_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:644
HEVCLocalContext::qp_y
int8_t qp_y
Definition: hevcdec.h:411
ff_hevc_qpel_extra_after
const uint8_t ff_hevc_qpel_extra_after[4]
HEVCNALUnitType
HEVCNALUnitType
Table 7-1 – NAL unit type codes and NAL unit type classes in T-REC-H.265-201802.
Definition: hevc.h:28
SAO_EO_HORIZ
@ SAO_EO_HORIZ
Definition: hevcdec.h:165
SliceHeader::chroma_offset_l0
int16_t chroma_offset_l0[16][2]
Definition: hevcdec.h:274
SliceHeader::list_entry_lx
unsigned int list_entry_lx[2][32]
Definition: hevcdec.h:224
HEVCLocalContext::stat_coeff
uint8_t stat_coeff[HEVC_STAT_COEFFS]
Definition: hevcdec.h:389
HEVCFrame::poc
int poc
Definition: hevcdec.h:367
HEVCContext::HEVClcList
HEVCLocalContext ** HEVClcList
Definition: hevcdec.h:448
SAOEOClass
SAOEOClass
Definition: hevcdec.h:164
hevc.h
SAOParams
Definition: hevcdsp.h:34
SliceHeader::short_term_rps
const ShortTermRPS * short_term_rps
Definition: hevcdec.h:221
avcodec.h
SliceHeader::cu_chroma_qp_offset_enabled_flag
uint8_t cu_chroma_qp_offset_enabled_flag
Definition: hevcdec.h:250
HEVCContext::first_nal_type
enum HEVCNALUnitType first_nal_type
Definition: hevcdec.h:540
HEVCContext::overlap
int overlap
Definition: hevcdec.h:491
NeighbourAvailable
Definition: hevcdec.h:306
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
PRED_L1
@ PRED_L1
Definition: hevcdec.h:108
PredictionUnit::mvd
Mv mvd
Definition: hevcdec.h:319
IntraPredMode
IntraPredMode
Definition: hevcdec.h:119
ST_CURR_BEF
@ ST_CURR_BEF
Definition: hevcdec.h:81
SliceHeader::disable_deblocking_filter_flag
uint8_t disable_deblocking_filter_flag
slice_header_disable_deblocking_filter_flag
Definition: hevcdec.h:236
HEVCLocalContext::edge_emu_buffer2
uint8_t edge_emu_buffer2[(MAX_PB_SIZE+7) *EDGE_EMU_BUFFER_STRIDE *2]
Definition: hevcdec.h:427
HEVCContext::HEVClc
HEVCLocalContext * HEVClc
Definition: hevcdec.h:449
SliceHeader::max_num_merge_cand
uint8_t max_num_merge_cand
5 - 5_minus_max_num_merge_cand
Definition: hevcdec.h:255
SliceHeader::luma_weight_l0
int16_t luma_weight_l0[16]
Definition: hevcdec.h:268
ff_hevc_merge_idx_decode
int ff_hevc_merge_idx_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:746
HEVCLocalContext::boundary_flags
int boundary_flags
Definition: hevcdec.h:441
HEVC_NAL_TRAIL_N
@ HEVC_NAL_TRAIL_N
Definition: hevc.h:29
LongTermRPS
Definition: hevcdec.h:182
SliceHeader::slice_type
enum HEVCSliceType slice_type
Definition: hevcdec.h:208
LT_CURR
@ LT_CURR
Definition: hevcdec.h:84
AVCodecContext
main external API structure.
Definition: avcodec.h:445
HEVCContext::threads_number
uint8_t threads_number
Definition: hevcdec.h:452
INTRA_ANGULAR_25
@ INTRA_ANGULAR_25
Definition: hevcdec.h:145
ff_hevc_hls_mvd_coding
void ff_hevc_hls_mvd_coding(HEVCLocalContext *lc, int x0, int y0, int log2_cb_size)
Definition: hevc_cabac.c:1501
SliceHeader::slice_qp
int8_t slice_qp
Definition: hevcdec.h:263
PredMode
PredMode
Definition: hevcdec.h:100
PredictionUnit::merge_flag
uint8_t merge_flag
Definition: hevcdec.h:320
NB_RPS_TYPE
@ NB_RPS_TYPE
Definition: hevcdec.h:86
SliceHeader::slice_cr_qp_offset
int slice_cr_qp_offset
Definition: hevcdec.h:244
HEVCContext
Definition: hevcdec.h:444
ff_hevc_prev_intra_luma_pred_flag_decode
int ff_hevc_prev_intra_luma_pred_flag_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:712
CodingUnit::pred_mode
enum PredMode pred_mode
PredMode.
Definition: hevcdec.h:286
HEVCContext::rpl_tab_pool
struct FFRefStructPool * rpl_tab_pool
candidate references for the current frame
Definition: hevcdec.h:470
SliceHeader::pic_order_cnt_lsb
int pic_order_cnt_lsb
Definition: hevcdec.h:210
HEVCContext::rpu_buf
AVBufferRef * rpu_buf
0 or 1 Dolby Vision RPUs.
Definition: hevcdec.h:551
HEVCLocalContext::qPy_pred
int qPy_pred
Definition: hevcdec.h:414
SCAN_DIAG
@ SCAN_DIAG
Definition: hevcdec.h:172
SliceHeader::rpl_modification_flag
uint8_t rpl_modification_flag[2]
Definition: hevcdec.h:226
ShortTermRPS
Definition: hevc_ps.h:72
SAO_EO_VERT
@ SAO_EO_VERT
Definition: hevcdec.h:166
ff_hevc_split_coding_unit_flag_decode
int ff_hevc_split_coding_unit_flag_decode(HEVCLocalContext *lc, int ct_depth, int x0, int y0)
Definition: hevc_cabac.c:649
ff_hevc_sao_offset_sign_decode
int ff_hevc_sao_offset_sign_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:558
HEVCLocalContext::tu
TransformUnit tu
Definition: hevcdec.h:416
ff_hevc_log2_res_scale_abs
int ff_hevc_log2_res_scale_abs(HEVCLocalContext *lc, int idx)
Definition: hevc_cabac.c:861
VideoDSPContext
Definition: videodsp.h:40
CodingUnit::y
int y
Definition: hevcdec.h:284
HEVCContext::vdsp
VideoDSPContext vdsp
Definition: hevcdec.h:498
MvField::mv
Mv mv[2]
mvL0, vvL1
Definition: hevcdec.h:301
INTRA_ANGULAR_24
@ INTRA_ANGULAR_24
Definition: hevcdec.h:144
Mv
Definition: hevcdec.h:295
MvField::ref_idx
int8_t ref_idx[2]
refIdxL0, refIdxL1
Definition: hevcdec.h:302
PRED_L0
@ PRED_L0
Definition: hevcdec.h:107
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
HEVCCABACState::stat_coeff
uint8_t stat_coeff[HEVC_STAT_COEFFS]
Definition: hevcdec.h:179
INTRA_ANGULAR_31
@ INTRA_ANGULAR_31
Definition: hevcdec.h:151
ff_hevc_slice_rpl
int ff_hevc_slice_rpl(HEVCContext *s)
Construct the reference picture list(s) for the current slice.
Definition: hevc_refs.c:301
HEVCContext::eos
int eos
current packet contains an EOS/EOB NAL
Definition: hevcdec.h:486
ff_hevc_set_qPy
void ff_hevc_set_qPy(HEVCLocalContext *lc, int xBase, int yBase, int log2_cb_size)
Definition: hevc_filter.c:119
HEVCContext::vertical_bs
uint8_t * vertical_bs
Definition: hevcdec.h:503
ff_hevc_sao_band_position_decode
int ff_hevc_sao_band_position_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:538
ST_CURR_AFT
@ ST_CURR_AFT
Definition: hevcdec.h:82
CodingUnit::part_mode
enum PartMode part_mode
PartMode.
Definition: hevcdec.h:287
INTRA_ANGULAR_4
@ INTRA_ANGULAR_4
Definition: hevcdec.h:124
ProgressFrame
The ProgressFrame structure.
Definition: progressframe.h:73
SliceHeader::tc_offset
int tc_offset
tc_offset_div2 * 2
Definition: hevcdec.h:253
LongTermRPS::nb_refs
uint8_t nb_refs
Definition: hevcdec.h:186
PredFlag
PredFlag
Definition: hevcdec.h:112
TransformUnit::cross_pf
uint8_t cross_pf
Definition: hevcdec.h:338
HEVCLocalContext::cu
CodingUnit cu
Definition: hevcdec.h:431
HEVCContext::sao_pixel_buffer_v
uint8_t * sao_pixel_buffer_v[3]
Definition: hevcdec.h:463
SliceHeader::pps_id
unsigned int pps_id
address (in raster order) of the first block in the current slice segment
Definition: hevcdec.h:201
videodsp.h
SliceHeader::luma_weight_l1
int16_t luma_weight_l1[16]
Definition: hevcdec.h:271
HEVCContext::sh
SliceHeader sh
Definition: hevcdec.h:475
ff_hevc_set_neighbour_available
void ff_hevc_set_neighbour_available(HEVCLocalContext *lc, int x0, int y0, int nPbW, int nPbH)
Definition: hevc_mvs.c:43
int32_t
int32_t
Definition: audioconvert.c:56
PredictionUnit::mpm_idx
int mpm_idx
Definition: hevcdec.h:316
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:474
HEVCContext::wpp_err
atomic_int wpp_err
Definition: hevcdec.h:534
INTRA_ANGULAR_33
@ INTRA_ANGULAR_33
Definition: hevcdec.h:153
ff_hevc_frame_nb_refs
int ff_hevc_frame_nb_refs(const HEVCContext *s)
Get the number of candidate references for the current frame.
Definition: hevc_refs.c:530
PredictionUnit::chroma_mode_c
uint8_t chroma_mode_c[4]
Definition: hevcdec.h:322
PredictionUnit::intra_pred_mode
uint8_t intra_pred_mode[4]
Definition: hevcdec.h:318
HEVCContext::hpc
HEVCPredContext hpc
Definition: hevcdec.h:496
BswapDSPContext
Definition: bswapdsp.h:24
TransformUnit::is_cu_chroma_qp_offset_coded
uint8_t is_cu_chroma_qp_offset_coded
Definition: hevcdec.h:335
ff_hevc_pcm_flag_decode
int ff_hevc_pcm_flag_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:707
SliceHeader::slice_qp_delta
int slice_qp_delta
Definition: hevcdec.h:242
SliceHeader::slice_addr
unsigned int slice_addr
Definition: hevcdec.h:206
SliceHeader::use_integer_mv_flag
uint8_t use_integer_mv_flag
Definition: hevcdec.h:256
RefPicList::isLongTerm
int isLongTerm[HEVC_MAX_REFS]
Definition: hevcdec.h:192
HEVCCABACState
Definition: hevcdec.h:177
HEVCContext::is_pcm
uint8_t * is_pcm
Definition: hevcdec.h:514
TransformUnit::intra_pred_mode_c
int intra_pred_mode_c
Definition: hevcdec.h:332
HEVCContext::hevcdsp
HEVCDSPContext hevcdsp
Definition: hevcdec.h:497
INTRA_ANGULAR_20
@ INTRA_ANGULAR_20
Definition: hevcdec.h:140
INTRA_ANGULAR_13
@ INTRA_ANGULAR_13
Definition: hevcdec.h:133
HEVCLocalContext::end_of_tiles_y
int end_of_tiles_y
Definition: hevcdec.h:423
H2645Packet
Definition: h2645_parse.h:82
CodingUnit::intra_split_flag
uint8_t intra_split_flag
IntraSplitFlag.
Definition: hevcdec.h:290
hevc_sei.h
ff_hevc_mvp_lx_flag_decode
int ff_hevc_mvp_lx_flag_decode(HEVCLocalContext *lc)
Definition: hevc_cabac.c:788
ff_hevc_clear_refs
void ff_hevc_clear_refs(HEVCContext *s)
Mark all frames in DPB as unused for reference.
Definition: hevc_refs.c:61
CABACContext
Definition: cabac.h:41
PART_2NxN
@ PART_2NxN
Definition: hevcdec.h:91
SliceHeader::long_term_rps
LongTermRPS long_term_rps
Definition: hevcdec.h:223
ff_hevc_cu_chroma_qp_offset_flag
int ff_hevc_cu_chroma_qp_offset_flag(HEVCLocalContext *lc)
Definition: hevc_cabac.c:628
HEVCLocalContext::cc
CABACContext cc
Definition: hevcdec.h:397
TransformUnit::cu_qp_offset_cr
int8_t cu_qp_offset_cr
Definition: hevcdec.h:337
HEVCParamSets
Definition: hevc_ps.h:440
HEVC_CONTEXTS
#define HEVC_CONTEXTS
Definition: hevcdec.h:52
RefPicListTab::refPicList
RefPicList refPicList[2]
Definition: hevcdec.h:197