FFmpeg
h264dec.h
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1 /*
2  * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
3  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * H.264 / AVC / MPEG-4 part10 codec.
25  * @author Michael Niedermayer <michaelni@gmx.at>
26  */
27 
28 #ifndef AVCODEC_H264DEC_H
29 #define AVCODEC_H264DEC_H
30 
31 #include "libavutil/buffer.h"
32 #include "libavutil/mem_internal.h"
33 
34 #include "cabac.h"
35 #include "error_resilience.h"
36 #include "h264_parse.h"
37 #include "h264_ps.h"
38 #include "h264_sei.h"
39 #include "h2645_parse.h"
40 #include "h264chroma.h"
41 #include "h264dsp.h"
42 #include "h264pred.h"
43 #include "h264qpel.h"
44 #include "h274.h"
45 #include "mpegutils.h"
46 #include "threadframe.h"
47 #include "videodsp.h"
48 
49 #define H264_MAX_PICTURE_COUNT 36
50 
51 /* Compiling in interlaced support reduces the speed
52  * of progressive decoding by about 2%. */
53 #define ALLOW_INTERLACE
54 
55 #define FMO 0
56 
57 /**
58  * The maximum number of slices supported by the decoder.
59  * must be a power of 2
60  */
61 #define MAX_SLICES 32
62 
63 #ifdef ALLOW_INTERLACE
64 #define MB_MBAFF(h) (h)->mb_mbaff
65 #define MB_FIELD(sl) (sl)->mb_field_decoding_flag
66 #define FRAME_MBAFF(h) (h)->mb_aff_frame
67 #define FIELD_PICTURE(h) ((h)->picture_structure != PICT_FRAME)
68 #define LEFT_MBS 2
69 #define LTOP 0
70 #define LBOT 1
71 #define LEFT(i) (i)
72 #else
73 #define MB_MBAFF(h) 0
74 #define MB_FIELD(sl) 0
75 #define FRAME_MBAFF(h) 0
76 #define FIELD_PICTURE(h) 0
77 #undef IS_INTERLACED
78 #define IS_INTERLACED(mb_type) 0
79 #define LEFT_MBS 1
80 #define LTOP 0
81 #define LBOT 0
82 #define LEFT(i) 0
83 #endif
84 #define FIELD_OR_MBAFF_PICTURE(h) (FRAME_MBAFF(h) || FIELD_PICTURE(h))
85 
86 #ifndef CABAC
87 #define CABAC(h) (h)->ps.pps->cabac
88 #endif
89 
90 #define CHROMA(h) ((h)->ps.sps->chroma_format_idc)
91 #define CHROMA422(h) ((h)->ps.sps->chroma_format_idc == 2)
92 #define CHROMA444(h) ((h)->ps.sps->chroma_format_idc == 3)
93 
94 #define IS_REF0(a) ((a) & MB_TYPE_REF0)
95 #define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT)
96 
97 /**
98  * Memory management control operation.
99  */
100 typedef struct MMCO {
102  int short_pic_num; ///< pic_num without wrapping (pic_num & max_pic_num)
103  int long_arg; ///< index, pic_num, or num long refs depending on opcode
104 } MMCO;
105 
106 typedef struct H264Picture {
109 
111 
112  int8_t *qscale_table_base; ///< RefStruct reference
113  int8_t *qscale_table;
114 
115  int16_t (*motion_val_base[2])[2]; ///< RefStruct reference
116  int16_t (*motion_val[2])[2];
117 
118  uint32_t *mb_type_base; ///< RefStruct reference
119  uint32_t *mb_type;
120 
121  /// RefStruct reference for hardware accelerator private data
123 
124  int8_t *ref_index[2]; ///< RefStruct reference
125 
126  int field_poc[2]; ///< top/bottom POC
127  int poc; ///< frame POC
128  int frame_num; ///< frame_num (raw frame_num from slice header)
129  int mmco_reset; /**< MMCO_RESET set this 1. Reordering code must
130  not mix pictures before and after MMCO_RESET. */
131  int pic_id; /**< pic_num (short -> no wrap version of pic_num,
132  pic_num & max_pic_num; long -> long_pic_num) */
133  int long_ref; ///< 1->long term reference 0->short term reference
134  int ref_poc[2][2][32]; ///< POCs of the frames/fields used as reference (FIXME need per slice)
135  int ref_count[2][2]; ///< number of entries in ref_poc (FIXME need per slice)
136  int mbaff; ///< 1 -> MBAFF frame 0-> not MBAFF
137  int field_picture; ///< whether or not picture was encoded in separate fields
138 
139 /**
140  * H264Picture.reference has this flag set,
141  * when the picture is held for delayed output.
142  */
143 #define DELAYED_PIC_REF (1 << 2)
145  int recovered; ///< picture at IDR or recovery point + recovery count
148  int needs_fg; ///< whether picture needs film grain synthesis (see `f_grain`)
149 
150  const PPS *pps;
151 
154 
155  /// RefStruct reference; its pointee is shared between decoding threads.
157 
158  int gray;
159 } H264Picture;
160 
161 typedef struct H264Ref {
162  uint8_t *data[3];
163  int linesize[3];
164 
166  int poc;
167  int pic_id;
168 
170 } H264Ref;
171 
172 typedef struct H264SliceContext {
173  const struct H264Context *h264;
176 
179  int slice_type_nos; ///< S free slice type (SI/SP are remapped to I/P)
181 
182  int qscale;
183  int chroma_qp[2]; // QPc
184  int qp_thresh; ///< QP threshold to skip loopfilter
186 
187  // deblock
188  int deblocking_filter; ///< disable_deblocking_filter_idc with 1 <-> 0
191 
193 
196 
199 
202 
207 
209  int top_type;
212 
213  const uint8_t *left_block;
215 
217  unsigned int top_samples_available;
220 
221  ptrdiff_t linesize, uvlinesize;
222  ptrdiff_t mb_linesize; ///< may be equal to s->linesize or s->linesize * 2, for mbaff
223  ptrdiff_t mb_uvlinesize;
224 
225  int mb_x, mb_y;
226  int mb_xy;
229  unsigned int first_mb_addr;
230  // index of the first MB of the next slice
234 
237  int mb_mbaff; ///< mb_aff_frame && mb_field_decoding_flag
238 
240 
241  /**
242  * number of neighbors (top and/or left) that used 8x8 dct
243  */
245 
249 
250  int cbp;
251  int top_cbp;
252  int left_cbp;
253 
256  int map_col_to_list0[2][16 + 32];
257  int map_col_to_list0_field[2][2][16 + 32];
258 
259  /**
260  * num_ref_idx_l0/1_active_minus1 + 1
261  */
262  unsigned int ref_count[2]; ///< counts frames or fields, depending on current mb mode
263  unsigned int list_count;
264  H264Ref ref_list[2][48]; /**< 0..15: frame refs, 16..47: mbaff field refs.
265  * Reordered version of default_ref_list
266  * according to picture reordering in slice header */
267  struct {
268  uint8_t op;
269  uint32_t val;
270  } ref_modifications[2][32];
272 
273  unsigned int pps_id;
274 
275  const uint8_t *intra_pcm_ptr;
276 
278  uint8_t *edge_emu_buffer;
279  uint8_t (*top_borders[2])[(16 * 3) * 2];
283 
284  /**
285  * non zero coeff count cache.
286  * is 64 if not available.
287  */
288  DECLARE_ALIGNED(8, uint8_t, non_zero_count_cache)[15 * 8];
289 
290  /**
291  * Motion vector cache.
292  */
293  DECLARE_ALIGNED(16, int16_t, mv_cache)[2][5 * 8][2];
294  DECLARE_ALIGNED(8, int8_t, ref_cache)[2][5 * 8];
295  DECLARE_ALIGNED(16, uint8_t, mvd_cache)[2][5 * 8][2];
296  uint8_t direct_cache[5 * 8];
297 
298  DECLARE_ALIGNED(8, uint16_t, sub_mb_type)[4];
299 
300  ///< as a DCT coefficient is int32_t in high depth, we need to reserve twice the space.
301  DECLARE_ALIGNED(16, int16_t, mb)[16 * 48 * 2];
302  DECLARE_ALIGNED(16, int16_t, mb_luma_dc)[3][16 * 2];
303  ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either
304  ///< check that i is not too large or ensure that there is some unused stuff after mb
305  int16_t mb_padding[256 * 2];
306 
307  uint8_t (*mvd_table[2])[2];
308 
309  /**
310  * Cabac
311  */
313  uint8_t cabac_state[1024];
315 
317  int nb_mmco;
319 
322  int poc_lsb;
324  int delta_poc[2];
328 
329 /**
330  * H264Context
331  */
332 typedef struct H264Context {
333  const AVClass *class;
340 
345 
349 
351 
352  int pixel_shift; ///< 0 for 8-bit H.264, 1 for high-bit-depth H.264
353 
354  /* coded dimensions -- 16 * mb w/h */
355  int width, height;
357 
359 
361  int flags;
364  /* Set when slice threading is used and at least one slice uses deblocking
365  * mode 1 (i.e. across slice boundaries). Then we disable the loop filter
366  * during normal MB decoding and execute it serially at the end.
367  */
369 
370  /*
371  * Set to 1 when the current picture is IDR, 0 otherwise.
372  */
374 
375  /*
376  * Set to 1 when the current picture contains only I slices, 0 otherwise.
377  */
379 
382  int crop_top;
384 
387 
388  uint8_t (*non_zero_count)[48];
389 
390 #define LIST_NOT_USED -1 // FIXME rename?
391 
392  /**
393  * block_offset[ 0..23] for frame macroblocks
394  * block_offset[24..47] for field macroblocks
395  */
396  int block_offset[2 * (16 * 3)];
397 
398  uint32_t *mb2b_xy; // FIXME are these 4 a good idea?
399  uint32_t *mb2br_xy;
400  int b_stride; // FIXME use s->b4_stride
401 
402  uint16_t *slice_table; ///< slice_table_base + 2*mb_stride + 1
403 
404  // interlacing specific flags
408 
409  uint8_t *list_counts; ///< Array of list_count per MB specifying the slice type
410 
411  /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0, 1, 2), 0x0? luma_cbp */
412  uint16_t *cbp_table;
413 
414  /* chroma_pred_mode for i4x4 or i16x16, else 0 */
416  uint8_t (*mvd_table[2])[2];
417  uint8_t *direct_table;
418 
419  uint8_t scan_padding[16];
420  uint8_t zigzag_scan[16];
421  uint8_t zigzag_scan8x8[64];
422  uint8_t zigzag_scan8x8_cavlc[64];
423  uint8_t field_scan[16];
424  uint8_t field_scan8x8[64];
425  uint8_t field_scan8x8_cavlc[64];
426  uint8_t zigzag_scan_q0[16];
427  uint8_t zigzag_scan8x8_q0[64];
429  uint8_t field_scan_q0[16];
430  uint8_t field_scan8x8_q0[64];
432 
433  int mb_y;
436  int mb_num;
437 
438  // =============================================================
439  // Things below are not used in the MB or more inner code
440 
443 
444  int has_slice; ///< slice NAL is found in the packet, set by decode_nal_units, its state does not need to be preserved outside h264_decode_frame()
445 
446  /**
447  * Used to parse AVC variant of H.264
448  */
449  int is_avc; ///< this flag is != 0 if codec is avc1
450  int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
451 
452  int bit_depth_luma; ///< luma bit depth from sps to detect changes
453  int chroma_format_idc; ///< chroma format from sps to detect changes
454 
456 
457  uint16_t *slice_table_base;
458 
460 
468  int poc_offset; ///< PicOrderCnt_offset from SMPTE RDD-2006
469 
470  /**
471  * memory management control operations buffer.
472  */
474  int nb_mmco;
477 
478  int long_ref_count; ///< number of actual long term references
479  int short_ref_count; ///< number of actual short term references
480 
481  /**
482  * @name Members for slice based multithreading
483  * @{
484  */
485  /**
486  * current slice number, used to initialize slice_num of each thread/context
487  */
489 
490  /** @} */
491 
492  /**
493  * Complement sei_pic_struct
494  * SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames.
495  * However, soft telecined frames may have these values.
496  * This is used in an attempt to flag soft telecine progressive.
497  */
499 
500  /**
501  * Are the SEI recovery points looking valid.
502  */
504 
505  /**
506  * recovery_frame is the frame_num at which the next frame should
507  * be fully constructed.
508  *
509  * Set to -1 when not expecting a recovery point.
510  */
512 
513 /**
514  * We have seen an IDR, so all the following frames in coded order are correctly
515  * decodable.
516  */
517 #define FRAME_RECOVERED_IDR (1 << 0)
518 /**
519  * Sufficient number of frames have been decoded since a SEI recovery point,
520  * so all the following frames in presentation order are correct.
521  */
522 #define FRAME_RECOVERED_SEI (1 << 1)
523 /**
524  * Recovery point detected by heuristic
525  */
526 #define FRAME_RECOVERED_HEURISTIC (1 << 2)
527 
528  /**
529  * Initial frame has been completely recovered.
530  *
531  * Once this is set, all following decoded as well as displayed frames will be marked as recovered
532  * If a frame is marked as recovered frame_recovered will be set once this frame is output and thus
533  * all subsequently output fraames are also marked as recovered
534  *
535  * In effect, if you want all subsequent DECODED frames marked as recovered, set frame_recovered
536  * If you want all subsequent DISPAYED frames marked as recovered, set the frame->recovered
537  */
539 
541 
543 
544  /* for frame threading, this is set to 1
545  * after finish_setup() has been called, so we cannot modify
546  * some context properties (which are supposed to stay constant between
547  * slices) anymore */
549 
552  int16_t slice_row[MAX_SLICES]; ///< to detect when MAX_SLICES is too low
553 
554  /* original AVCodecContext dimensions, used to handle container
555  * cropping */
558 
561  int16_t *dc_val_base;
562 
564 
570  int ref2frm[MAX_SLICES][2][64]; ///< reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
571 
572  int non_gray; ///< Did we encounter a intra frame after a gray gap frame
575 } H264Context;
576 
577 extern const uint16_t ff_h264_mb_sizes[4];
578 
579 /**
580  * Reconstruct bitstream slice_type.
581  */
583 
584 /**
585  * Allocate tables.
586  * needs width/height
587  */
589 
593 
594 /**
595  * Execute the reference picture marking (memory management control operations).
596  */
598 
600  const H2645NAL *nal, void *logctx);
601 
603 void ff_h264_decode_init_vlc(void);
604 
605 /**
606  * Decode a macroblock
607  * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error
608  */
610 
611 /**
612  * Decode a CABAC coded macroblock
613  * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error
614  */
616 
618 
622  int *mb_type);
623 
624 void ff_h264_filter_mb_fast(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y,
625  uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr,
626  unsigned int linesize, unsigned int uvlinesize);
627 void ff_h264_filter_mb(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y,
628  uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr,
629  unsigned int linesize, unsigned int uvlinesize);
630 
631 /*
632  * o-o o-o
633  * / / /
634  * o-o o-o
635  * ,---'
636  * o-o o-o
637  * / / /
638  * o-o o-o
639  */
640 
641 /* Scan8 organization:
642  * 0 1 2 3 4 5 6 7
643  * 0 DY y y y y y
644  * 1 y Y Y Y Y
645  * 2 y Y Y Y Y
646  * 3 y Y Y Y Y
647  * 4 y Y Y Y Y
648  * 5 DU u u u u u
649  * 6 u U U U U
650  * 7 u U U U U
651  * 8 u U U U U
652  * 9 u U U U U
653  * 10 DV v v v v v
654  * 11 v V V V V
655  * 12 v V V V V
656  * 13 v V V V V
657  * 14 v V V V V
658  * DY/DU/DV are for luma/chroma DC.
659  */
660 
661 #define LUMA_DC_BLOCK_INDEX 48
662 #define CHROMA_DC_BLOCK_INDEX 49
663 
664 /**
665  * Get the chroma qp.
666  */
667 static av_always_inline int get_chroma_qp(const PPS *pps, int t, int qscale)
668 {
669  return pps->chroma_qp_table[t][qscale];
670 }
671 
672 int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup);
673 
677 
679 
680 void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height);
681 
682 /**
683  * Submit a slice for decoding.
684  *
685  * Parse the slice header, starting a new field/frame if necessary. If any
686  * slices are queued for the previous field, they are decoded.
687  */
691  const AVCodecContext *src);
693  const AVCodecContext *src);
694 
696 
698 
699 void ff_h264_set_erpic(ERPicture *dst, const H264Picture *src);
700 
701 #endif /* AVCODEC_H264DEC_H */
H264Context::missing_fields
int missing_fields
Definition: h264dec.h:542
H264Context::context_initialized
int context_initialized
Definition: h264dec.h:360
H264Context::mb_num
int mb_num
Definition: h264dec.h:436
MMCO::opcode
MMCOOpcode opcode
Definition: h264dec.h:101
H264Context::nb_slice_ctx_queued
int nb_slice_ctx_queued
Definition: h264dec.h:348
H264Context::picture_intra_only
int picture_intra_only
Definition: h264dec.h:378
H264SliceContext::mb_xy
int mb_xy
Definition: h264dec.h:226
H264SliceContext::nb_ref_modifications
int nb_ref_modifications[2]
Definition: h264dec.h:271
MMCO::long_arg
int long_arg
index, pic_num, or num long refs depending on opcode
Definition: h264dec.h:103
H264Context::picture_structure
int picture_structure
Definition: h264dec.h:406
H264Context::slice_table_base
uint16_t * slice_table_base
Definition: h264dec.h:457
H264SliceContext::ref_cache
int8_t ref_cache[2][5 *8]
Definition: h264dec.h:294
H264SliceContext::topleft_samples_available
unsigned int topleft_samples_available
Definition: h264dec.h:216
H264Context::explicit_ref_marking
int explicit_ref_marking
Definition: h264dec.h:476
H264Context::pixel_shift
int pixel_shift
0 for 8-bit H.264, 1 for high-bit-depth H.264
Definition: h264dec.h:352
H264Context::noref_gray
int noref_gray
Definition: h264dec.h:573
H264SliceContext::max_pic_num
int max_pic_num
Definition: h264dec.h:326
h2645_parse.h
H264SliceContext::nb_mmco
int nb_mmco
Definition: h264dec.h:317
cabac.h
H264SliceContext::intra_pcm_ptr
const uint8_t * intra_pcm_ptr
Definition: h264dec.h:275
ff_h264_update_thread_context_for_user
int ff_h264_update_thread_context_for_user(AVCodecContext *dst, const AVCodecContext *src)
Definition: h264_slice.c:465
H264Picture::poc
int poc
frame POC
Definition: h264dec.h:127
H264Context::cbp_table
uint16_t * cbp_table
Definition: h264dec.h:412
H264Picture::f
AVFrame * f
Definition: h264dec.h:107
mem_internal.h
H264Context::h264dsp
H264DSPContext h264dsp
Definition: h264dec.h:336
H264Context::slice_ctx
H264SliceContext * slice_ctx
Definition: h264dec.h:346
H264Context::flags
int flags
Definition: h264dec.h:361
H264Ref
Definition: h264dec.h:161
H264Picture::ref_count
int ref_count[2][2]
number of entries in ref_poc (FIXME need per slice)
Definition: h264dec.h:135
H264SliceContext::topright_mb_xy
int topright_mb_xy
Definition: h264dec.h:205
H264Context::motion_val_pool
struct FFRefStructPool * motion_val_pool
Definition: h264dec.h:567
H264Picture::ref_index
int8_t * ref_index[2]
RefStruct reference.
Definition: h264dec.h:124
H264SliceContext::mb
int16_t mb[16 *48 *2]
Definition: h264dec.h:301
H264SliceContext::mvd_table
uint8_t(*[2] mvd_table)[2]
Definition: h264dec.h:307
H264Context::b_stride
int b_stride
Definition: h264dec.h:400
H264Context::h274db
H274FilmGrainDatabase h274db
Definition: h264dec.h:339
H264Picture::pps
const PPS * pps
Definition: h264dec.h:150
ff_h264_flush_change
void ff_h264_flush_change(H264Context *h)
Definition: h264dec.c:458
h264_parse.h
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:374
H264Context::recovery_frame
int recovery_frame
recovery_frame is the frame_num at which the next frame should be fully constructed.
Definition: h264dec.h:511
H264SliceContext::topleft_partition
int topleft_partition
Definition: h264dec.h:214
ff_h264_execute_ref_pic_marking
int ff_h264_execute_ref_pic_marking(H264Context *h)
Execute the reference picture marking (memory management control operations).
Definition: h264_refs.c:606
ff_h264_decode_mb_cabac
int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl)
Decode a CABAC coded macroblock.
Definition: h264_cabac.c:1920
H264SliceContext::val
uint32_t val
Definition: h264dec.h:269
H264Ref::pic_id
int pic_id
Definition: h264dec.h:167
H264SliceContext::ref_count
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264dec.h:262
H264Context::nal_unit_type
int nal_unit_type
Definition: h264dec.h:442
H264SliceContext::left_block
const uint8_t * left_block
Definition: h264dec.h:213
atomic_int
intptr_t atomic_int
Definition: stdatomic.h:55
H264Picture::qscale_table
int8_t * qscale_table
Definition: h264dec.h:113
H264SliceContext::left_mb_xy
int left_mb_xy[LEFT_MBS]
Definition: h264dec.h:206
H264Context::mb_type_pool
struct FFRefStructPool * mb_type_pool
Definition: h264dec.h:566
ERContext
Definition: error_resilience.h:53
H264Context::nb_mmco
int nb_mmco
Definition: h264dec.h:474
H264Context::setup_finished
int setup_finished
Definition: h264dec.h:548
H264Context::field_scan8x8_cavlc
uint8_t field_scan8x8_cavlc[64]
Definition: h264dec.h:425
ff_h264_unref_picture
void ff_h264_unref_picture(H264Picture *pic)
Definition: h264_picture.c:39
H264SliceContext::sub_mb_type
uint16_t sub_mb_type[4]
as a DCT coefficient is int32_t in high depth, we need to reserve twice the space.
Definition: h264dec.h:298
ff_h264_draw_horiz_band
void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height)
Definition: h264dec.c:103
ff_h264_alloc_tables
int ff_h264_alloc_tables(H264Context *h)
Allocate tables.
Definition: h264dec.c:186
H264Context::dc_val_base
int16_t * dc_val_base
Definition: h264dec.h:561
H264SliceContext::is_complex
int is_complex
Definition: h264dec.h:233
DPB
Decoded Picture Buffer (DPB).
Definition: vaapi_h264.c:82
H264Context::valid_recovery_point
int valid_recovery_point
Are the SEI recovery points looking valid.
Definition: h264dec.h:503
H264Context::field_scan8x8_q0
uint8_t field_scan8x8_q0[64]
Definition: h264dec.h:430
mpegutils.h
H264Picture::invalid_gap
int invalid_gap
Definition: h264dec.h:146
MMCOOpcode
MMCOOpcode
Memory management control operation opcode.
Definition: h264_parse.h:59
H264SliceContext::dist_scale_factor
int dist_scale_factor[32]
Definition: h264dec.h:254
H264Context::height_from_caller
int height_from_caller
Definition: h264dec.h:557
H264SliceContext::mb_x
int mb_x
Definition: h264dec.h:225
ERPicture
Definition: error_resilience.h:40
H264Picture::frame_num
int frame_num
frame_num (raw frame_num from slice header)
Definition: h264dec.h:128
ff_h264_set_erpic
void ff_h264_set_erpic(ERPicture *dst, const H264Picture *src)
Definition: h264_picture.c:166
H264SliceContext::next_slice_idx
int next_slice_idx
Definition: h264dec.h:231
H264SliceContext
Definition: h264dec.h:172
H264SliceContext::mb_padding
int16_t mb_padding[256 *2]
Definition: h264dec.h:305
H264Context::cur_pic
H264Picture cur_pic
Definition: h264dec.h:343
H264SliceContext::mv_cache
int16_t mv_cache[2][5 *8][2]
Motion vector cache.
Definition: h264dec.h:293
H264Context::chroma_pred_mode_table
uint8_t * chroma_pred_mode_table
Definition: h264dec.h:415
h264qpel.h
H264SliceContext::mvd_cache
uint8_t mvd_cache[2][5 *8][2]
Definition: h264dec.h:295
H264SliceContext::map_col_to_list0
int map_col_to_list0[2][16+32]
Definition: h264dec.h:256
H264SliceContext::map_col_to_list0_field
int map_col_to_list0_field[2][2][16+32]
Definition: h264dec.h:257
ff_h264_remove_all_refs
void ff_h264_remove_all_refs(H264Context *h)
Definition: h264_refs.c:564
get_chroma_qp
static av_always_inline int get_chroma_qp(const PPS *pps, int t, int qscale)
Get the chroma qp.
Definition: h264dec.h:667
H264Picture::mmco_reset
int mmco_reset
MMCO_RESET set this 1.
Definition: h264dec.h:129
H264Picture::ref_poc
int ref_poc[2][2][32]
POCs of the frames/fields used as reference (FIXME need per slice)
Definition: h264dec.h:134
H264Context::cur_pic_ptr
H264Picture * cur_pic_ptr
Definition: h264dec.h:342
GetBitContext
Definition: get_bits.h:108
H264Context::mb_stride
int mb_stride
Definition: h264dec.h:435
ff_h264_execute_decode_slices
int ff_h264_execute_decode_slices(H264Context *h)
Call decode_slice() for each context.
Definition: h264_slice.c:2759
H264Context::mb_y
int mb_y
Definition: h264dec.h:433
H264Context::nb_slice_ctx
int nb_slice_ctx
Definition: h264dec.h:347
H264Picture::mb_stride
int mb_stride
Definition: h264dec.h:153
H264SliceContext::deblocking_filter
int deblocking_filter
disable_deblocking_filter_idc with 1 <-> 0
Definition: h264dec.h:188
H264Picture::f_grain
AVFrame * f_grain
Definition: h264dec.h:110
H264SliceContext::picture_structure
int picture_structure
Definition: h264dec.h:235
H264SliceContext::direct_spatial_mv_pred
int direct_spatial_mv_pred
Definition: h264dec.h:246
H264Context::avctx
AVCodecContext * avctx
Definition: h264dec.h:334
H264Ref::data
uint8_t * data[3]
Definition: h264dec.h:162
H264SliceContext::slice_num
int slice_num
Definition: h264dec.h:177
H264Context::chroma_format_idc
int chroma_format_idc
chroma format from sps to detect changes
Definition: h264dec.h:453
H264Context::mmco
MMCO mmco[H264_MAX_MMCO_COUNT]
memory management control operations buffer.
Definition: h264dec.h:473
H264Context::non_gray
int non_gray
Did we encounter a intra frame after a gray gap frame.
Definition: h264dec.h:572
H264_MAX_DPB_FRAMES
@ H264_MAX_DPB_FRAMES
Definition: h264.h:76
H264Picture::mbaff
int mbaff
1 -> MBAFF frame 0-> not MBAFF
Definition: h264dec.h:136
H264Context::width
int width
Definition: h264dec.h:355
H264Picture::qscale_table_base
int8_t * qscale_table_base
RefStruct reference.
Definition: h264dec.h:112
H264SliceContext::topleft_mb_xy
int topleft_mb_xy
Definition: h264dec.h:203
H264Context::postpone_filter
int postpone_filter
Definition: h264dec.h:368
H264Context::short_ref_count
int short_ref_count
number of actual short term references
Definition: h264dec.h:479
H264SliceContext::next_mb_skipped
int next_mb_skipped
Definition: h264dec.h:195
H264Context::crop_top
int crop_top
Definition: h264dec.h:382
H264SliceContext::ref_modifications
struct H264SliceContext::@114 ref_modifications[2][32]
H264Context::zigzag_scan8x8
uint8_t zigzag_scan8x8[64]
Definition: h264dec.h:421
H264Context::er
ERContext er
Definition: h264dec.h:560
H264SliceContext::slice_alpha_c0_offset
int slice_alpha_c0_offset
Definition: h264dec.h:189
H264Context::crop_bottom
int crop_bottom
Definition: h264dec.h:383
ff_h264_direct_dist_scale_factor
void ff_h264_direct_dist_scale_factor(const H264Context *const h, H264SliceContext *sl)
Definition: h264_direct.c:61
H264Context::last_pocs
int last_pocs[H264_MAX_DPB_FRAMES]
Definition: h264dec.h:465
FFRefStructPool
FFRefStructPool is an API for a thread-safe pool of objects managed via the RefStruct API.
Definition: refstruct.c:183
ff_h264_get_slice_type
int ff_h264_get_slice_type(const H264SliceContext *sl)
Reconstruct bitstream slice_type.
Definition: h264_slice.c:2177
H264SliceContext::slice_type
int slice_type
Definition: h264dec.h:178
MMCO::short_pic_num
int short_pic_num
pic_num without wrapping (pic_num & max_pic_num)
Definition: h264dec.h:102
H264SliceContext::resync_mb_x
int resync_mb_x
Definition: h264dec.h:227
H264Picture::sei_recovery_frame_cnt
int sei_recovery_frame_cnt
Definition: h264dec.h:147
H264Context::enable_er
int enable_er
Definition: h264dec.h:559
ff_h264_init_cabac_states
void ff_h264_init_cabac_states(const H264Context *h, H264SliceContext *sl)
Definition: h264_cabac.c:1262
H264Context::mvd_table
uint8_t(*[2] mvd_table)[2]
Definition: h264dec.h:416
H264SliceContext::curr_pic_num
int curr_pic_num
Definition: h264dec.h:325
H264SliceContext::topright_samples_available
unsigned int topright_samples_available
Definition: h264dec.h:218
H264Context::last_pic_for_ec
H264Picture last_pic_for_ec
Definition: h264dec.h:344
threadframe.h
H264Context::zigzag_scan8x8_cavlc
uint8_t zigzag_scan8x8_cavlc[64]
Definition: h264dec.h:422
H264Context::non_zero_count
uint8_t(* non_zero_count)[48]
Definition: h264dec.h:388
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
H264Context::hpc
H264PredContext hpc
Definition: h264dec.h:386
H264SEIContext
Definition: h264_sei.h:119
H264SliceContext::edge_emu_buffer
uint8_t * edge_emu_buffer
Definition: h264dec.h:278
H264Picture::mb_type_base
uint32_t * mb_type_base
RefStruct reference.
Definition: h264dec.h:118
H264Context::pkt
H2645Packet pkt
Definition: h264dec.h:350
H264Context::next_outputed_poc
int next_outputed_poc
Definition: h264dec.h:467
H264Ref::parent
const H264Picture * parent
Definition: h264dec.h:169
H264Context::long_ref_count
int long_ref_count
number of actual long term references
Definition: h264dec.h:478
H264Ref::linesize
int linesize[3]
Definition: h264dec.h:163
H264Context::mb_width
int mb_width
Definition: h264dec.h:434
H264SliceContext::chroma_qp
int chroma_qp[2]
Definition: h264dec.h:183
h264dsp.h
PPS
Picture parameter set.
Definition: h264_ps.h:110
H264Context::ref2frm
int ref2frm[MAX_SLICES][2][64]
reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
Definition: h264dec.h:570
H264Context::skip_gray
int skip_gray
Definition: h264dec.h:574
ff_h264_decode_ref_pic_list_reordering
int ff_h264_decode_ref_pic_list_reordering(H264SliceContext *sl, void *logctx)
Definition: h264_refs.c:427
H264SliceContext::top_samples_available
unsigned int top_samples_available
Definition: h264dec.h:217
H264Context::h264qpel
H264QpelContext h264qpel
Definition: h264dec.h:338
H264Picture::mb_height
int mb_height
Definition: h264dec.h:152
H264SliceContext::mb_luma_dc
int16_t mb_luma_dc[3][16 *2]
as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not too lar...
Definition: h264dec.h:302
H264SliceContext::qscale
int qscale
Definition: h264dec.h:182
h274.h
H264SliceContext::top_borders_allocated
int top_borders_allocated[2]
Definition: h264dec.h:282
ff_h264_mb_sizes
const uint16_t ff_h264_mb_sizes[4]
Definition: h264dec.c:59
H264Context::delayed_pic
H264Picture * delayed_pic[H264_MAX_DPB_FRAMES+2]
Definition: h264dec.h:464
H264SliceContext::mb_skip_run
int mb_skip_run
Definition: h264dec.h:232
h264_ps.h
H264SliceContext::cabac_state
uint8_t cabac_state[1024]
Definition: h264dec.h:313
H264SliceContext::top_type
int top_type
Definition: h264dec.h:209
H264Context::bit_depth_luma
int bit_depth_luma
luma bit depth from sps to detect changes
Definition: h264dec.h:452
H264Context::frame_recovered
int frame_recovered
Initial frame has been completely recovered.
Definition: h264dec.h:538
H264Context::has_slice
int has_slice
slice NAL is found in the packet, set by decode_nal_units, its state does not need to be preserved ou...
Definition: h264dec.h:444
H264Context::next_output_pic
H264Picture * next_output_pic
Definition: h264dec.h:466
H264SliceContext::resync_mb_y
int resync_mb_y
Definition: h264dec.h:228
ff_h264_pred_direct_motion
void ff_h264_pred_direct_motion(const H264Context *const h, H264SliceContext *sl, int *mb_type)
Definition: h264_direct.c:720
H264Context::decode_error_flags_pool
struct FFRefStructPool * decode_error_flags_pool
Definition: h264dec.h:569
H264Context::picture_idr
int picture_idr
Definition: h264dec.h:373
ff_h264_direct_ref_list_init
void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *sl)
Definition: h264_direct.c:120
H264DSPContext
Context for storing H.264 DSP functions.
Definition: h264dsp.h:42
H264Picture::pic_id
int pic_id
pic_num (short -> no wrap version of pic_num, pic_num & max_pic_num; long -> long_pic_num)
Definition: h264dec.h:131
H264SliceContext::cabac
CABACContext cabac
Cabac.
Definition: h264dec.h:312
H264SliceContext::redundant_pic_count
int redundant_pic_count
Definition: h264dec.h:239
H264SliceContext::intra4x4_pred_mode_cache
int8_t intra4x4_pred_mode_cache[5 *8]
Definition: h264dec.h:200
H264Context::long_ref
H264Picture * long_ref[32]
Definition: h264dec.h:463
H274FilmGrainDatabase
Definition: h274.h:34
H264Context::mb_aff_frame
int mb_aff_frame
Definition: h264dec.h:405
H264Context::crop_left
int crop_left
Definition: h264dec.h:380
H264Picture::reference
int reference
Definition: h264dec.h:144
H264Context::poc
H264POCContext poc
Definition: h264dec.h:459
H264Context::qscale_table_pool
struct FFRefStructPool * qscale_table_pool
Definition: h264dec.h:565
H264Context::vdsp
VideoDSPContext vdsp
Definition: h264dec.h:335
LEFT_MBS
#define LEFT_MBS
Definition: h264dec.h:68
H264Context::block_offset
int block_offset[2 *(16 *3)]
block_offset[ 0..23] for frame macroblocks block_offset[24..47] for field macroblocks
Definition: h264dec.h:396
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem_internal.h:109
H264SliceContext::mb_uvlinesize
ptrdiff_t mb_uvlinesize
Definition: h264dec.h:223
H264SliceContext::pwt
H264PredWeightTable pwt
Definition: h264dec.h:192
H264Picture::tf
ThreadFrame tf
Definition: h264dec.h:108
H264Picture::mb_type
uint32_t * mb_type
Definition: h264dec.h:119
H264SliceContext::intra16x16_pred_mode
int intra16x16_pred_mode
Definition: h264dec.h:198
H264Context::has_recovery_point
int has_recovery_point
Definition: h264dec.h:540
H264Picture::decode_error_flags
atomic_int * decode_error_flags
RefStruct reference; its pointee is shared between decoding threads.
Definition: h264dec.h:156
H264Picture::recovered
int recovered
picture at IDR or recovery point + recovery count
Definition: h264dec.h:145
H264Context::zigzag_scan8x8_cavlc_q0
uint8_t zigzag_scan8x8_cavlc_q0[64]
Definition: h264dec.h:428
H264SliceContext::top_mb_xy
int top_mb_xy
Definition: h264dec.h:204
H264SliceContext::qp_thresh
int qp_thresh
QP threshold to skip loopfilter.
Definition: h264dec.h:184
H264Context::chroma_x_shift
int chroma_x_shift
Definition: h264dec.h:356
H264Picture::gray
int gray
Definition: h264dec.h:158
H264Context::sei
H264SEIContext sei
Definition: h264dec.h:563
H2645NAL
Definition: h2645_parse.h:34
H264SliceContext::top_borders
uint8_t(*[2] top_borders)[(16 *3) *2]
Definition: h264dec.h:279
h264chroma.h
H264Context::direct_table
uint8_t * direct_table
Definition: h264dec.h:417
H264SliceContext::cbp
int cbp
Definition: h264dec.h:250
H264Context::prev_interlaced_frame
int prev_interlaced_frame
Complement sei_pic_struct SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced...
Definition: h264dec.h:498
ff_h264_queue_decode_slice
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
Submit a slice for decoding.
Definition: h264_slice.c:2052
H264SliceContext::left_type
int left_type[LEFT_MBS]
Definition: h264dec.h:211
buffer.h
H264SliceContext::mb_y
int mb_y
Definition: h264dec.h:225
height
#define height
H264SliceContext::explicit_ref_marking
int explicit_ref_marking
Definition: h264dec.h:318
H264Context::mmco_reset
int mmco_reset
Definition: h264dec.h:475
H264SliceContext::uvlinesize
ptrdiff_t uvlinesize
Definition: h264dec.h:221
H264SliceContext::slice_type_nos
int slice_type_nos
S free slice type (SI/SP are remapped to I/P)
Definition: h264dec.h:179
H264Context::ps
H264ParamSets ps
Definition: h264dec.h:455
H264SliceContext::delta_poc_bottom
int delta_poc_bottom
Definition: h264dec.h:323
H264Context::field_scan_q0
uint8_t field_scan_q0[16]
Definition: h264dec.h:429
H264Context::height
int height
Definition: h264dec.h:355
H264SliceContext::mb_mbaff
int mb_mbaff
mb_aff_frame && mb_field_decoding_flag
Definition: h264dec.h:237
ff_h264_filter_mb
void ff_h264_filter_mb(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize)
Definition: h264_loopfilter.c:716
H264Context::default_ref
H264Ref default_ref[2]
Definition: h264dec.h:461
h264_sei.h
H264Picture::field_picture
int field_picture
whether or not picture was encoded in separate fields
Definition: h264dec.h:137
H264Context::poc_offset
int poc_offset
PicOrderCnt_offset from SMPTE RDD-2006.
Definition: h264dec.h:468
H264Context::intra4x4_pred_mode
int8_t * intra4x4_pred_mode
Definition: h264dec.h:385
H264SliceContext::poc_lsb
int poc_lsb
Definition: h264dec.h:322
H264SliceContext::chroma_pred_mode
int chroma_pred_mode
Definition: h264dec.h:197
H264SliceContext::first_mb_addr
unsigned int first_mb_addr
Definition: h264dec.h:229
H264SliceContext::top_cbp
int top_cbp
Definition: h264dec.h:251
H264SliceContext::topleft_type
int topleft_type
Definition: h264dec.h:208
ff_h264_field_end
int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup)
Definition: h264_picture.c:189
ff_h264_free_tables
void ff_h264_free_tables(H264Context *h)
Definition: h264dec.c:141
H264Picture::needs_fg
int needs_fg
whether picture needs film grain synthesis (see f_grain)
Definition: h264dec.h:148
H264Context
H264Context.
Definition: h264dec.h:332
ff_h264_decode_mb_cavlc
int ff_h264_decode_mb_cavlc(const H264Context *h, H264SliceContext *sl)
Decode a macroblock.
Definition: h264_cavlc.c:665
H264SliceContext::frame_num
int frame_num
Definition: h264dec.h:320
H264POCContext
Definition: h264_parse.h:82
H264SliceContext::col_fieldoff
int col_fieldoff
Definition: h264dec.h:248
H264SliceContext::mb_linesize
ptrdiff_t mb_linesize
may be equal to s->linesize or s->linesize * 2, for mbaff
Definition: h264dec.h:222
av_always_inline
#define av_always_inline
Definition: attributes.h:49
H264Context::nal_ref_idc
int nal_ref_idc
Definition: h264dec.h:441
H264Context::mb_height
int mb_height
Definition: h264dec.h:434
ff_h264_slice_context_init
void ff_h264_slice_context_init(H264Context *h, H264SliceContext *sl)
Init slice context.
Definition: h264dec.c:265
H264Context::cur_chroma_format_idc
int cur_chroma_format_idc
Definition: h264dec.h:550
H264QpelContext
Definition: h264qpel.h:27
H264Context::crop_right
int crop_right
Definition: h264dec.h:381
H264SliceContext::list_count
unsigned int list_count
Definition: h264dec.h:263
H264Context::field_scan8x8_cavlc_q0
uint8_t field_scan8x8_cavlc_q0[64]
Definition: h264dec.h:431
H264Context::list_counts
uint8_t * list_counts
Array of list_count per MB specifying the slice type.
Definition: h264dec.h:409
H264SliceContext::h264
const struct H264Context * h264
Definition: h264dec.h:173
H264Context::workaround_bugs
int workaround_bugs
Definition: h264dec.h:362
MAX_SLICES
#define MAX_SLICES
The maximum number of slices supported by the decoder.
Definition: h264dec.h:61
H264Context::mb2br_xy
uint32_t * mb2br_xy
Definition: h264dec.h:399
H264SliceContext::last_qscale_diff
int last_qscale_diff
Definition: h264dec.h:185
ff_h264_build_ref_list
int ff_h264_build_ref_list(H264Context *h, H264SliceContext *sl)
Definition: h264_refs.c:294
h264pred.h
H264Context::slice_row
int16_t slice_row[MAX_SLICES]
to detect when MAX_SLICES is too low
Definition: h264dec.h:552
H264SliceContext::pps_id
unsigned int pps_id
Definition: h264dec.h:273
H264SliceContext::linesize
ptrdiff_t linesize
Definition: h264dec.h:221
H264Context::h264chroma
H264ChromaContext h264chroma
Definition: h264dec.h:337
H264SliceContext::slice_beta_offset
int slice_beta_offset
Definition: h264dec.h:190
AVCodecContext
main external API structure.
Definition: avcodec.h:445
H264Picture::motion_val_base
int16_t(*[2] motion_val_base)[2]
RefStruct reference.
Definition: h264dec.h:115
ThreadFrame
Definition: threadframe.h:27
H264SliceContext::bipred_scratchpad
uint8_t * bipred_scratchpad
Definition: h264dec.h:277
H264Picture::field_poc
int field_poc[2]
top/bottom POC
Definition: h264dec.h:126
H264Context::first_field
int first_field
Definition: h264dec.h:407
H264SliceContext::mmco
MMCO mmco[H264_MAX_MMCO_COUNT]
Definition: h264dec.h:316
error_resilience.h
H264Context::zigzag_scan8x8_q0
uint8_t zigzag_scan8x8_q0[64]
Definition: h264dec.h:427
H264Picture::mb_width
int mb_width
Definition: h264dec.h:152
H264Picture
Definition: h264dec.h:106
H264ParamSets
Definition: h264_ps.h:144
ff_h264_replace_picture
int ff_h264_replace_picture(H264Picture *dst, const H264Picture *src)
Definition: h264_picture.c:135
H264Context::zigzag_scan
uint8_t zigzag_scan[16]
Definition: h264dec.h:420
H264Context::width_from_caller
int width_from_caller
Definition: h264dec.h:556
H264SliceContext::left_cbp
int left_cbp
Definition: h264dec.h:252
pps
uint64_t pps
Definition: dovi_rpuenc.c:35
ff_h264_decode_init_vlc
void ff_h264_decode_init_vlc(void)
Definition: h264_cavlc.c:315
H264PredWeightTable
Definition: h264_parse.h:69
H264SliceContext::col_parity
int col_parity
Definition: h264dec.h:247
H264Context::slice_table
uint16_t * slice_table
slice_table_base + 2*mb_stride + 1
Definition: h264dec.h:402
VideoDSPContext
Definition: videodsp.h:40
H264PredContext
Context for storing H.264 prediction functions.
Definition: h264pred.h:94
H264SliceContext::ref_list
H264Ref ref_list[2][48]
0..15: frame refs, 16..47: mbaff field refs.
Definition: h264dec.h:264
H264SliceContext::non_zero_count_cache
uint8_t non_zero_count_cache[15 *8]
non zero coeff count cache.
Definition: h264dec.h:288
H264SliceContext::dist_scale_factor_field
int dist_scale_factor_field[2][32]
Definition: h264dec.h:255
H264SliceContext::direct_cache
uint8_t direct_cache[5 *8]
Definition: h264dec.h:296
H264SliceContext::op
uint8_t op
Definition: h264dec.h:268
H264Context::cur_bit_depth_luma
int cur_bit_depth_luma
Definition: h264dec.h:551
MMCO
Memory management control operation.
Definition: h264dec.h:100
H264Context::scan_padding
uint8_t scan_padding[16]
Definition: h264dec.h:419
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int ff_h264_ref_picture(H264Picture *dst, const H264Picture *src)
Definition: h264_picture.c:108
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int topright_type
Definition: h264dec.h:210
H264Context::nal_length_size
int nal_length_size
Number of bytes used for nal length (1, 2 or 4)
Definition: h264dec.h:450
ff_h264_decode_ref_pic_marking
int ff_h264_decode_ref_pic_marking(H264SliceContext *sl, GetBitContext *gb, const H2645NAL *nal, void *logctx)
Definition: h264_refs.c:828
H264SliceContext::left_samples_available
unsigned int left_samples_available
Definition: h264dec.h:219
H264SliceContext::er
ERContext * er
Definition: h264dec.h:175
H264Picture::hwaccel_picture_private
void * hwaccel_picture_private
RefStruct reference for hardware accelerator private data.
Definition: h264dec.h:122
H264SliceContext::idr_pic_id
int idr_pic_id
Definition: h264dec.h:321
H264SliceContext::neighbor_transform_size
int neighbor_transform_size
number of neighbors (top and/or left) that used 8x8 dct
Definition: h264dec.h:244
H264ChromaContext
Definition: h264chroma.h:27
H264SliceContext::gb
GetBitContext gb
Definition: h264dec.h:174
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
videodsp.h
H264SliceContext::intra4x4_pred_mode
int8_t * intra4x4_pred_mode
Definition: h264dec.h:201
H264_MAX_MMCO_COUNT
@ H264_MAX_MMCO_COUNT
Definition: h264.h:92
H264Context::short_ref
H264Picture * short_ref[32]
Definition: h264dec.h:462
H264Context::ref_index_pool
struct FFRefStructPool * ref_index_pool
Definition: h264dec.h:568
H264Context::droppable
int droppable
Definition: h264dec.h:358
H264SliceContext::edge_emu_buffer_allocated
int edge_emu_buffer_allocated
Definition: h264dec.h:281
H264Context::zigzag_scan_q0
uint8_t zigzag_scan_q0[16]
Definition: h264dec.h:426
H264Context::field_scan
uint8_t field_scan[16]
Definition: h264dec.h:423
h
h
Definition: vp9dsp_template.c:2038
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int cabac_init_idc
Definition: h264dec.h:314
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#define H264_MAX_PICTURE_COUNT
Definition: h264dec.h:49
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int ff_h264_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: h264_slice.c:330
ff_h264_hl_decode_mb
void ff_h264_hl_decode_mb(const H264Context *h, H264SliceContext *sl)
Definition: h264_mb.c:800
H264SliceContext::bipred_scratchpad_allocated
int bipred_scratchpad_allocated
Definition: h264dec.h:280
H264Context::x264_build
int x264_build
Definition: h264dec.h:363
H264SliceContext::slice_type_fixed
int slice_type_fixed
Definition: h264dec.h:180
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Definition: h264dec.h:166
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uint32_t * mb2b_xy
Definition: h264dec.h:398
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Definition: h2645_parse.h:82
CABACContext
Definition: cabac.h:41
H264SliceContext::delta_poc
int delta_poc[2]
Definition: h264dec.h:324
H264Context::chroma_y_shift
int chroma_y_shift
Definition: h264dec.h:356
H264Context::current_slice
int current_slice
current slice number, used to initialize slice_num of each thread/context
Definition: h264dec.h:488
H264Picture::long_ref
int long_ref
1->long term reference 0->short term reference
Definition: h264dec.h:133
H264Ref::reference
int reference
Definition: h264dec.h:165
H264Picture::motion_val
int16_t(*[2] motion_val)[2]
Definition: h264dec.h:116
H264SliceContext::prev_mb_skipped
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Definition: h264dec.h:194
ff_h264_filter_mb_fast
void ff_h264_filter_mb_fast(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize)
Definition: h264_loopfilter.c:416
H264Context::field_scan8x8
uint8_t field_scan8x8[64]
Definition: h264dec.h:424
H264SliceContext::mb_field_decoding_flag
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Definition: h264dec.h:236
H264Context::is_avc
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Used to parse AVC variant of H.264.
Definition: h264dec.h:449