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h264.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_H264_H
29 #define AVCODEC_H264_H
30 
31 #include "libavutil/buffer.h"
32 #include "libavutil/intreadwrite.h"
33 #include "libavutil/thread.h"
34 #include "cabac.h"
35 #include "error_resilience.h"
36 #include "get_bits.h"
37 #include "h264_parse.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 "internal.h"
45 #include "mpegutils.h"
46 #include "parser.h"
47 #include "qpeldsp.h"
48 #include "rectangle.h"
49 #include "videodsp.h"
50 
51 #define H264_MAX_PICTURE_COUNT 36
52 
53 #define MAX_SPS_COUNT 32
54 #define MAX_PPS_COUNT 256
55 
56 #define MAX_MMCO_COUNT 66
57 
58 #define MAX_DELAYED_PIC_COUNT 16
59 
60 #define MAX_MBPAIR_SIZE (256*1024) // a tighter bound could be calculated if someone cares about a few bytes
61 
62 /* Compiling in interlaced support reduces the speed
63  * of progressive decoding by about 2%. */
64 #define ALLOW_INTERLACE
65 
66 #define FMO 0
67 
68 /**
69  * The maximum number of slices supported by the decoder.
70  * must be a power of 2
71  */
72 #define MAX_SLICES 32
73 
74 #ifdef ALLOW_INTERLACE
75 #define MB_MBAFF(h) (h)->mb_mbaff
76 #define MB_FIELD(sl) (sl)->mb_field_decoding_flag
77 #define FRAME_MBAFF(h) (h)->mb_aff_frame
78 #define FIELD_PICTURE(h) ((h)->picture_structure != PICT_FRAME)
79 #define LEFT_MBS 2
80 #define LTOP 0
81 #define LBOT 1
82 #define LEFT(i) (i)
83 #else
84 #define MB_MBAFF(h) 0
85 #define MB_FIELD(sl) 0
86 #define FRAME_MBAFF(h) 0
87 #define FIELD_PICTURE(h) 0
88 #undef IS_INTERLACED
89 #define IS_INTERLACED(mb_type) 0
90 #define LEFT_MBS 1
91 #define LTOP 0
92 #define LBOT 0
93 #define LEFT(i) 0
94 #endif
95 #define FIELD_OR_MBAFF_PICTURE(h) (FRAME_MBAFF(h) || FIELD_PICTURE(h))
96 
97 #ifndef CABAC
98 #define CABAC(h) (h)->ps.pps->cabac
99 #endif
100 
101 #define CHROMA(h) ((h)->ps.sps->chroma_format_idc)
102 #define CHROMA422(h) ((h)->ps.sps->chroma_format_idc == 2)
103 #define CHROMA444(h) ((h)->ps.sps->chroma_format_idc == 3)
104 
105 #define EXTENDED_SAR 255
106 
107 #define MB_TYPE_REF0 MB_TYPE_ACPRED // dirty but it fits in 16 bit
108 #define MB_TYPE_8x8DCT 0x01000000
109 #define IS_REF0(a) ((a) & MB_TYPE_REF0)
110 #define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT)
111 
112 #define QP_MAX_NUM (51 + 6*6) // The maximum supported qp
113 
114 /* NAL unit types */
115 enum {
117  NAL_DPA = 2,
118  NAL_DPB = 3,
119  NAL_DPC = 4,
121  NAL_SEI = 6,
122  NAL_SPS = 7,
123  NAL_PPS = 8,
124  NAL_AUD = 9,
130  NAL_FF_IGNORE = 0xff0f001,
131 };
132 
133 /**
134  * Sequence parameter set
135  */
136 typedef struct SPS {
137  unsigned int sps_id;
141  int transform_bypass; ///< qpprime_y_zero_transform_bypass_flag
142  int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4
143  int poc_type; ///< pic_order_cnt_type
144  int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4
148  int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle
149  int ref_frame_count; ///< num_ref_frames
151  int mb_width; ///< pic_width_in_mbs_minus1 + 1
152  int mb_height; ///< pic_height_in_map_units_minus1 + 1
154  int mb_aff; ///< mb_adaptive_frame_field_flag
156  int crop; ///< frame_cropping_flag
157 
158  /* those 4 are already in luma samples */
159  unsigned int crop_left; ///< frame_cropping_rect_left_offset
160  unsigned int crop_right; ///< frame_cropping_rect_right_offset
161  unsigned int crop_top; ///< frame_cropping_rect_top_offset
162  unsigned int crop_bottom; ///< frame_cropping_rect_bottom_offset
173  uint32_t time_scale;
175  short offset_for_ref_frame[256]; // FIXME dyn aloc?
185  int cpb_cnt; ///< See H.264 E.1.2
186  int initial_cpb_removal_delay_length; ///< initial_cpb_removal_delay_length_minus1 + 1
187  int cpb_removal_delay_length; ///< cpb_removal_delay_length_minus1 + 1
188  int dpb_output_delay_length; ///< dpb_output_delay_length_minus1 + 1
189  int bit_depth_luma; ///< bit_depth_luma_minus8 + 8
190  int bit_depth_chroma; ///< bit_depth_chroma_minus8 + 8
191  int residual_color_transform_flag; ///< residual_colour_transform_flag
192  int constraint_set_flags; ///< constraint_set[0-3]_flag
193  uint8_t data[4096];
194  size_t data_size;
195 } SPS;
196 
197 /**
198  * Picture parameter set
199  */
200 typedef struct PPS {
201  unsigned int sps_id;
202  int cabac; ///< entropy_coding_mode_flag
203  int pic_order_present; ///< pic_order_present_flag
204  int slice_group_count; ///< num_slice_groups_minus1 + 1
206  unsigned int ref_count[2]; ///< num_ref_idx_l0/1_active_minus1 + 1
207  int weighted_pred; ///< weighted_pred_flag
209  int init_qp; ///< pic_init_qp_minus26 + 26
210  int init_qs; ///< pic_init_qs_minus26 + 26
212  int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
213  int constrained_intra_pred; ///< constrained_intra_pred_flag
214  int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag
215  int transform_8x8_mode; ///< transform_8x8_mode_flag
218  uint8_t chroma_qp_table[2][QP_MAX_NUM+1]; ///< pre-scaled (with chroma_qp_index_offset) version of qp_table
220  uint8_t data[4096];
221  size_t data_size;
222 
223  uint32_t dequant4_buffer[6][QP_MAX_NUM + 1][16];
224  uint32_t dequant8_buffer[6][QP_MAX_NUM + 1][64];
225  uint32_t(*dequant4_coeff[6])[16];
226  uint32_t(*dequant8_coeff[6])[64];
227 } PPS;
228 
229 typedef struct H264ParamSets {
232 
235  /* currently active parameters sets */
236  const PPS *pps;
237  // FIXME this should properly be const
239 } H264ParamSets;
240 
241 /**
242  * Memory management control operation opcode.
243  */
244 typedef enum MMCOOpcode {
245  MMCO_END = 0,
252 } MMCOOpcode;
253 
254 /**
255  * Memory management control operation.
256  */
257 typedef struct MMCO {
259  int short_pic_num; ///< pic_num without wrapping (pic_num & max_pic_num)
260  int long_arg; ///< index, pic_num, or num long refs depending on opcode
261 } MMCO;
262 
263 typedef struct H264Picture {
266 
268  int8_t *qscale_table;
269 
271  int16_t (*motion_val[2])[2];
272 
274  uint32_t *mb_type;
275 
277  void *hwaccel_picture_private; ///< hardware accelerator private data
278 
280  int8_t *ref_index[2];
281 
282  int field_poc[2]; ///< top/bottom POC
283  int poc; ///< frame POC
284  int frame_num; ///< frame_num (raw frame_num from slice header)
285  int mmco_reset; /**< MMCO_RESET set this 1. Reordering code must
286  not mix pictures before and after MMCO_RESET. */
287  int pic_id; /**< pic_num (short -> no wrap version of pic_num,
288  pic_num & max_pic_num; long -> long_pic_num) */
289  int long_ref; ///< 1->long term reference 0->short term reference
290  int ref_poc[2][2][32]; ///< POCs of the frames/fields used as reference (FIXME need per slice)
291  int ref_count[2][2]; ///< number of entries in ref_poc (FIXME need per slice)
292  int mbaff; ///< 1 -> MBAFF frame 0-> not MBAFF
293  int field_picture; ///< whether or not picture was encoded in separate fields
294 
296  int recovered; ///< picture at IDR or recovery point + recovery count
299 
300  int crop;
302  int crop_top;
303 } H264Picture;
304 
305 typedef struct H264Ref {
307  int linesize[3];
308 
310  int poc;
311  int pic_id;
312 
314 } H264Ref;
315 
316 typedef struct H264SliceContext {
317  struct H264Context *h264;
320 
323  int slice_type_nos; ///< S free slice type (SI/SP are remapped to I/P)
325 
326  int qscale;
327  int chroma_qp[2]; // QPc
328  int qp_thresh; ///< QP threshold to skip loopfilter
330 
331  // deblock
332  int deblocking_filter; ///< disable_deblocking_filter_idc with 1 <-> 0
335 
337 
340 
343 
346 
351 
353  int top_type;
356 
359 
361  unsigned int top_samples_available;
364 
365  ptrdiff_t linesize, uvlinesize;
366  ptrdiff_t mb_linesize; ///< may be equal to s->linesize or s->linesize * 2, for mbaff
367  ptrdiff_t mb_uvlinesize;
368 
369  int mb_x, mb_y;
370  int mb_xy;
373  // index of the first MB of the next slice
377 
379  int mb_mbaff; ///< mb_aff_frame && mb_field_decoding_flag
380 
382 
383  /**
384  * number of neighbors (top and/or left) that used 8x8 dct
385  */
387 
391 
392  int cbp;
393  int top_cbp;
394  int left_cbp;
395 
398  int map_col_to_list0[2][16 + 32];
399  int map_col_to_list0_field[2][2][16 + 32];
400 
401  /**
402  * num_ref_idx_l0/1_active_minus1 + 1
403  */
404  unsigned int ref_count[2]; ///< counts frames or fields, depending on current mb mode
405  unsigned int list_count;
406  H264Ref ref_list[2][48]; /**< 0..15: frame refs, 16..47: mbaff field refs.
407  * Reordered version of default_ref_list
408  * according to picture reordering in slice header */
409 
411  int16_t *dc_val_base;
412 
415  uint8_t (*top_borders[2])[(16 * 3) * 2];
419 
420  /**
421  * non zero coeff count cache.
422  * is 64 if not available.
423  */
425 
426  /**
427  * Motion vector cache.
428  */
429  DECLARE_ALIGNED(16, int16_t, mv_cache)[2][5 * 8][2];
430  DECLARE_ALIGNED(8, int8_t, ref_cache)[2][5 * 8];
431  DECLARE_ALIGNED(16, uint8_t, mvd_cache)[2][5 * 8][2];
433 
434  DECLARE_ALIGNED(8, uint16_t, sub_mb_type)[4];
435 
436  ///< as a DCT coefficient is int32_t in high depth, we need to reserve twice the space.
437  DECLARE_ALIGNED(16, int16_t, mb)[16 * 48 * 2];
438  DECLARE_ALIGNED(16, int16_t, mb_luma_dc)[3][16 * 2];
439  ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either
440  ///< check that i is not too large or ensure that there is some unused stuff after mb
441  int16_t mb_padding[256 * 2];
442 
443  uint8_t (*mvd_table[2])[2];
444 
445  /**
446  * Cabac
447  */
452 
453 /**
454  * H264Context
455  */
456 typedef struct H264Context {
457  const AVClass *class;
464 
469 
472 
474 
475  int pixel_shift; ///< 0 for 8-bit H.264, 1 for high-bit-depth H.264
476 
477  /* coded dimensions -- 16 * mb w/h */
478  int width, height;
480 
481  /**
482  * Backup frame properties: needed, because they can be different
483  * between returned frame and last decoded frame.
484  **/
488 
491 
493  int flags;
495  /* Set when slice threading is used and at least one slice uses deblocking
496  * mode 1 (i.e. across slice boundaries). Then we disable the loop filter
497  * during normal MB decoding and execute it serially at the end.
498  */
500 
503 
505 
506 #define LIST_NOT_USED -1 // FIXME rename?
507 #define PART_NOT_AVAILABLE -2
508 
509  /**
510  * block_offset[ 0..23] for frame macroblocks
511  * block_offset[24..47] for field macroblocks
512  */
513  int block_offset[2 * (16 * 3)];
514 
515  uint32_t *mb2b_xy; // FIXME are these 4 a good idea?
516  uint32_t *mb2br_xy;
517  int b_stride; // FIXME use s->b4_stride
518 
519 
520  unsigned current_sps_id; ///< id of the current SPS
521 
522  int au_pps_id; ///< pps_id of current access unit
523 
524  uint16_t *slice_table; ///< slice_table_base + 2*mb_stride + 1
525 
526  // interlacing specific flags
530 
531  uint8_t *list_counts; ///< Array of list_count per MB specifying the slice type
532 
533  /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0, 1, 2), 0x0? luma_cbp */
534  uint16_t *cbp_table;
535 
536  /* chroma_pred_mode for i4x4 or i16x16, else 0 */
538  uint8_t (*mvd_table[2])[2];
540 
553 
554  int mb_y;
557  int mb_num;
558 
559  // =============================================================
560  // Things below are not used in the MB or more inner code
561 
564 
565  /**
566  * Used to parse AVC variant of H.264
567  */
568  int is_avc; ///< this flag is != 0 if codec is avc1
569  int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
570 
571  int bit_depth_luma; ///< luma bit depth from sps to detect changes
572  int chroma_format_idc; ///< chroma format from sps to detect changes
573 
575 
576  uint16_t *slice_table_base;
577 
579 
580  /**
581  * frame_num for frames or 2 * frame_num + 1 for field pics.
582  */
584 
585  /**
586  * max_frame_num or 2 * max_frame_num for field pics.
587  */
589 
597 
598  /**
599  * memory management control operations buffer.
600  */
604 
605  int long_ref_count; ///< number of actual long term references
606  int short_ref_count; ///< number of actual short term references
607 
608  /**
609  * @name Members for slice based multithreading
610  * @{
611  */
612  /**
613  * current slice number, used to initialize slice_num of each thread/context
614  */
616 
617  /**
618  * Max number of threads / contexts.
619  * This is equal to AVCodecContext.thread_count unless
620  * multithreaded decoding is impossible, in which case it is
621  * reduced to 1.
622  */
624 
625  /**
626  * 1 if the single thread fallback warning has already been
627  * displayed, 0 otherwise.
628  */
630 
631  /** @} */
632 
633  /**
634  * Complement sei_pic_struct
635  * SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames.
636  * However, soft telecined frames may have these values.
637  * This is used in an attempt to flag soft telecine progressive.
638  */
640 
641  /**
642  * Are the SEI recovery points looking valid.
643  */
645 
646  /**
647  * recovery_frame is the frame_num at which the next frame should
648  * be fully constructed.
649  *
650  * Set to -1 when not expecting a recovery point.
651  */
653 
654 /**
655  * We have seen an IDR, so all the following frames in coded order are correctly
656  * decodable.
657  */
658 #define FRAME_RECOVERED_IDR (1 << 0)
659 /**
660  * Sufficient number of frames have been decoded since a SEI recovery point,
661  * so all the following frames in presentation order are correct.
662  */
663 #define FRAME_RECOVERED_SEI (1 << 1)
664 
665  int frame_recovered; ///< Initial frame has been completely recovered
666 
668 
670 
671 /* for frame threading, this is set to 1
672  * after finish_setup() has been called, so we cannot modify
673  * some context properties (which are supposed to stay constant between
674  * slices) anymore */
676 
679  int16_t slice_row[MAX_SLICES]; ///< to detect when MAX_SLICES is too low
680 
682 
684 
689  int ref2frm[MAX_SLICES][2][64]; ///< reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
690 } H264Context;
691 
692 extern const uint16_t ff_h264_mb_sizes[4];
693 
694 /**
695  * Uninit H264 param sets structure.
696  */
697 
699 
700 /**
701  * Decode SPS
702  */
704  H264ParamSets *ps, int ignore_truncation);
705 
706 /**
707  * Decode PPS
708  */
710  H264ParamSets *ps, int bit_length);
711 
712 /**
713  * Reconstruct bitstream slice_type.
714  */
716 
717 /**
718  * Allocate tables.
719  * needs width/height
720  */
722 
726 
727 /**
728  * Execute the reference picture marking (memory management control operations).
729  */
730 int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count);
731 
733  int first_slice);
734 
735 int ff_generate_sliding_window_mmcos(H264Context *h, int first_slice);
736 
739 void ff_h264_decode_init_vlc(void);
740 
741 /**
742  * Decode a macroblock
743  * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error
744  */
746 
747 /**
748  * Decode a CABAC coded macroblock
749  * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error
750  */
752 
754 
758  int *mb_type);
759 
760 void ff_h264_filter_mb_fast(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y,
761  uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr,
762  unsigned int linesize, unsigned int uvlinesize);
763 void ff_h264_filter_mb(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y,
764  uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr,
765  unsigned int linesize, unsigned int uvlinesize);
766 
767 /*
768  * o-o o-o
769  * / / /
770  * o-o o-o
771  * ,---'
772  * o-o o-o
773  * / / /
774  * o-o o-o
775  */
776 
777 /* Scan8 organization:
778  * 0 1 2 3 4 5 6 7
779  * 0 DY y y y y y
780  * 1 y Y Y Y Y
781  * 2 y Y Y Y Y
782  * 3 y Y Y Y Y
783  * 4 y Y Y Y Y
784  * 5 DU u u u u u
785  * 6 u U U U U
786  * 7 u U U U U
787  * 8 u U U U U
788  * 9 u U U U U
789  * 10 DV v v v v v
790  * 11 v V V V V
791  * 12 v V V V V
792  * 13 v V V V V
793  * 14 v V V V V
794  * DY/DU/DV are for luma/chroma DC.
795  */
796 
797 #define LUMA_DC_BLOCK_INDEX 48
798 #define CHROMA_DC_BLOCK_INDEX 49
799 
800 // This table must be here because scan8[constant] must be known at compiletime
801 static const uint8_t scan8[16 * 3 + 3] = {
802  4 + 1 * 8, 5 + 1 * 8, 4 + 2 * 8, 5 + 2 * 8,
803  6 + 1 * 8, 7 + 1 * 8, 6 + 2 * 8, 7 + 2 * 8,
804  4 + 3 * 8, 5 + 3 * 8, 4 + 4 * 8, 5 + 4 * 8,
805  6 + 3 * 8, 7 + 3 * 8, 6 + 4 * 8, 7 + 4 * 8,
806  4 + 6 * 8, 5 + 6 * 8, 4 + 7 * 8, 5 + 7 * 8,
807  6 + 6 * 8, 7 + 6 * 8, 6 + 7 * 8, 7 + 7 * 8,
808  4 + 8 * 8, 5 + 8 * 8, 4 + 9 * 8, 5 + 9 * 8,
809  6 + 8 * 8, 7 + 8 * 8, 6 + 9 * 8, 7 + 9 * 8,
810  4 + 11 * 8, 5 + 11 * 8, 4 + 12 * 8, 5 + 12 * 8,
811  6 + 11 * 8, 7 + 11 * 8, 6 + 12 * 8, 7 + 12 * 8,
812  4 + 13 * 8, 5 + 13 * 8, 4 + 14 * 8, 5 + 14 * 8,
813  6 + 13 * 8, 7 + 13 * 8, 6 + 14 * 8, 7 + 14 * 8,
814  0 + 0 * 8, 0 + 5 * 8, 0 + 10 * 8
815 };
816 
817 static av_always_inline uint32_t pack16to32(unsigned a, unsigned b)
818 {
819 #if HAVE_BIGENDIAN
820  return (b & 0xFFFF) + (a << 16);
821 #else
822  return (a & 0xFFFF) + (b << 16);
823 #endif
824 }
825 
826 static av_always_inline uint16_t pack8to16(unsigned a, unsigned b)
827 {
828 #if HAVE_BIGENDIAN
829  return (b & 0xFF) + (a << 8);
830 #else
831  return (a & 0xFF) + (b << 8);
832 #endif
833 }
834 
835 /**
836  * Get the chroma qp.
837  */
838 static av_always_inline int get_chroma_qp(const H264Context *h, int t, int qscale)
839 {
840  return h->ps.pps->chroma_qp_table[t][qscale];
841 }
842 
843 /**
844  * Get the predicted intra4x4 prediction mode.
845  */
847  H264SliceContext *sl, int n)
848 {
849  const int index8 = scan8[n];
850  const int left = sl->intra4x4_pred_mode_cache[index8 - 1];
851  const int top = sl->intra4x4_pred_mode_cache[index8 - 8];
852  const int min = FFMIN(left, top);
853 
854  ff_tlog(h->avctx, "mode:%d %d min:%d\n", left, top, min);
855 
856  if (min < 0)
857  return DC_PRED;
858  else
859  return min;
860 }
861 
863  H264SliceContext *sl)
864 {
865  int8_t *i4x4 = sl->intra4x4_pred_mode + h->mb2br_xy[sl->mb_xy];
866  int8_t *i4x4_cache = sl->intra4x4_pred_mode_cache;
867 
868  AV_COPY32(i4x4, i4x4_cache + 4 + 8 * 4);
869  i4x4[4] = i4x4_cache[7 + 8 * 3];
870  i4x4[5] = i4x4_cache[7 + 8 * 2];
871  i4x4[6] = i4x4_cache[7 + 8 * 1];
872 }
873 
875  H264SliceContext *sl)
876 {
877  const int mb_xy = sl->mb_xy;
878  uint8_t *nnz = h->non_zero_count[mb_xy];
879  uint8_t *nnz_cache = sl->non_zero_count_cache;
880 
881  AV_COPY32(&nnz[ 0], &nnz_cache[4 + 8 * 1]);
882  AV_COPY32(&nnz[ 4], &nnz_cache[4 + 8 * 2]);
883  AV_COPY32(&nnz[ 8], &nnz_cache[4 + 8 * 3]);
884  AV_COPY32(&nnz[12], &nnz_cache[4 + 8 * 4]);
885  AV_COPY32(&nnz[16], &nnz_cache[4 + 8 * 6]);
886  AV_COPY32(&nnz[20], &nnz_cache[4 + 8 * 7]);
887  AV_COPY32(&nnz[32], &nnz_cache[4 + 8 * 11]);
888  AV_COPY32(&nnz[36], &nnz_cache[4 + 8 * 12]);
889 
890  if (!h->chroma_y_shift) {
891  AV_COPY32(&nnz[24], &nnz_cache[4 + 8 * 8]);
892  AV_COPY32(&nnz[28], &nnz_cache[4 + 8 * 9]);
893  AV_COPY32(&nnz[40], &nnz_cache[4 + 8 * 13]);
894  AV_COPY32(&nnz[44], &nnz_cache[4 + 8 * 14]);
895  }
896 }
897 
899  H264SliceContext *sl,
900  int b_stride,
901  int b_xy, int b8_xy,
902  int mb_type, int list)
903 {
904  int16_t(*mv_dst)[2] = &h->cur_pic.motion_val[list][b_xy];
905  int16_t(*mv_src)[2] = &sl->mv_cache[list][scan8[0]];
906  AV_COPY128(mv_dst + 0 * b_stride, mv_src + 8 * 0);
907  AV_COPY128(mv_dst + 1 * b_stride, mv_src + 8 * 1);
908  AV_COPY128(mv_dst + 2 * b_stride, mv_src + 8 * 2);
909  AV_COPY128(mv_dst + 3 * b_stride, mv_src + 8 * 3);
910  if (CABAC(h)) {
911  uint8_t (*mvd_dst)[2] = &sl->mvd_table[list][FMO ? 8 * sl->mb_xy
912  : h->mb2br_xy[sl->mb_xy]];
913  uint8_t(*mvd_src)[2] = &sl->mvd_cache[list][scan8[0]];
914  if (IS_SKIP(mb_type)) {
915  AV_ZERO128(mvd_dst);
916  } else {
917  AV_COPY64(mvd_dst, mvd_src + 8 * 3);
918  AV_COPY16(mvd_dst + 3 + 3, mvd_src + 3 + 8 * 0);
919  AV_COPY16(mvd_dst + 3 + 2, mvd_src + 3 + 8 * 1);
920  AV_COPY16(mvd_dst + 3 + 1, mvd_src + 3 + 8 * 2);
921  }
922  }
923 
924  {
925  int8_t *ref_index = &h->cur_pic.ref_index[list][b8_xy];
926  int8_t *ref_cache = sl->ref_cache[list];
927  ref_index[0 + 0 * 2] = ref_cache[scan8[0]];
928  ref_index[1 + 0 * 2] = ref_cache[scan8[4]];
929  ref_index[0 + 1 * 2] = ref_cache[scan8[8]];
930  ref_index[1 + 1 * 2] = ref_cache[scan8[12]];
931  }
932 }
933 
935  H264SliceContext *sl,
936  int mb_type)
937 {
938  const int b_stride = h->b_stride;
939  const int b_xy = 4 * sl->mb_x + 4 * sl->mb_y * h->b_stride; // try mb2b(8)_xy
940  const int b8_xy = 4 * sl->mb_xy;
941 
942  if (USES_LIST(mb_type, 0)) {
943  write_back_motion_list(h, sl, b_stride, b_xy, b8_xy, mb_type, 0);
944  } else {
945  fill_rectangle(&h->cur_pic.ref_index[0][b8_xy],
946  2, 2, 2, (uint8_t)LIST_NOT_USED, 1);
947  }
948  if (USES_LIST(mb_type, 1))
949  write_back_motion_list(h, sl, b_stride, b_xy, b8_xy, mb_type, 1);
950 
951  if (sl->slice_type_nos == AV_PICTURE_TYPE_B && CABAC(h)) {
952  if (IS_8X8(mb_type)) {
953  uint8_t *direct_table = &h->direct_table[4 * sl->mb_xy];
954  direct_table[1] = sl->sub_mb_type[1] >> 1;
955  direct_table[2] = sl->sub_mb_type[2] >> 1;
956  direct_table[3] = sl->sub_mb_type[3] >> 1;
957  }
958  }
959 }
960 
962 {
964  return !(AV_RN64A(sl->sub_mb_type) &
966  0x0001000100010001ULL));
967  else
968  return !(AV_RN64A(sl->sub_mb_type) &
970  0x0001000100010001ULL));
971 }
972 
973 static inline int find_start_code(const uint8_t *buf, int buf_size,
974  int buf_index, int next_avc)
975 {
976  uint32_t state = -1;
977 
978  buf_index = avpriv_find_start_code(buf + buf_index, buf + next_avc + 1, &state) - buf - 1;
979 
980  return FFMIN(buf_index, buf_size);
981 }
982 
983 int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup);
984 
987 
989 
990 void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height);
991 
993 #define SLICE_SINGLETHREAD 1
994 #define SLICE_SKIPED 2
995 
996 int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count);
998  const AVCodecContext *src);
999 
1001 
1003 
1005 
1006 #endif /* AVCODEC_H264_H */
int chroma_format_idc
Definition: h264.h:140
struct H264Context * h264
Definition: h264.h:317
int video_signal_type_present_flag
Definition: h264.h:165
const uint8_t * left_block
Definition: h264.h:357
#define ff_tlog(ctx,...)
Definition: internal.h:65
void ff_h264_unref_picture(H264Context *h, H264Picture *pic)
Definition: h264_picture.c:47
Memory management control operation.
Definition: h264.h:257
int workaround_bugs
Definition: h264.h:494
int long_ref
1->long term reference 0->short term reference
Definition: h264.h:289
int single_decode_warning
1 if the single thread fallback warning has already been displayed, 0 otherwise.
Definition: h264.h:629
int col_parity
Definition: h264.h:389
GetBitContext gb
Definition: h264.h:463
int sei_recovery_frame_cnt
Definition: h264.h:298
int ff_h264_slice_context_init(H264Context *h, H264SliceContext *sl)
Init context Allocate buffers which are not shared amongst multiple threads.
Definition: h264.c:238
enum AVPixelFormat backup_pix_fmt
Definition: h264.h:487
int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count)
Call decode_slice() for each context.
Definition: h264_slice.c:2400
int16_t mb[16 *48 *2]
Definition: h264.h:437
int topright_mb_xy
Definition: h264.h:349
H264POCContext poc
Definition: h264.h:578
int mb_num
Definition: h264.h:557
int ff_h264_decode_ref_pic_list_reordering(H264Context *h, H264SliceContext *sl)
Definition: h264_refs.c:273
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
int mb_aff_frame
Definition: h264.h:527
int topleft_partition
Definition: h264.h:358
int16_t mv_cache[2][5 *8][2]
Motion vector cache.
Definition: h264.h:429
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
int neighbor_transform_size
number of neighbors (top and/or left) that used 8x8 dct
Definition: h264.h:386
int dist_scale_factor[32]
Definition: h264.h:396
#define LEFT_MBS
Definition: h264.h:79
int edge_emu_buffer_allocated
Definition: h264.h:417
Definition: h264.h:123
#define H264_MAX_PICTURE_COUNT
Definition: h264.h:51
int first_field
Definition: h264.h:529
int ff_h264_decode_mb_cavlc(const H264Context *h, H264SliceContext *sl)
Decode a macroblock.
Definition: h264_cavlc.c:702
uint8_t field_scan8x8_q0[64]
Definition: h264.h:551
int weighted_bipred_idc
Definition: h264.h:208
int left_mb_xy[LEFT_MBS]
Definition: h264.h:350
int chroma_qp_index_offset[2]
Definition: h264.h:211
AVBufferRef * sps_list[MAX_SPS_COUNT]
Definition: h264.h:230
unsigned int topleft_samples_available
Definition: h264.h:360
H264ChromaContext h264chroma
Definition: h264.h:461
uint16_t * cbp_table
Definition: h264.h:534
int scaling_matrix_present
Definition: h264.h:178
MMCO mmco[MAX_MMCO_COUNT]
memory management control operations buffer.
Definition: h264.h:601
uint8_t scaling_matrix4[6][16]
Definition: h264.h:179
uint8_t mvd_cache[2][5 *8][2]
Definition: h264.h:431
#define MAX_PPS_COUNT
Definition: h264.h:54
Sequence parameter set.
Definition: h264.h:136
int mb_y
Definition: h264.h:554
int coded_picture_number
Definition: h264.h:490
int bitstream_restriction_flag
Definition: h264.h:176
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264.h:206
#define FMO
Definition: h264.h:66
AVBufferRef * mb_type_buf
Definition: h264.h:273
int bipred_scratchpad_allocated
Definition: h264.h:416
const char * b
Definition: vf_curves.c:109
void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *sl)
Definition: h264_direct.c:110
AVBufferPool * mb_type_pool
Definition: h264.h:686
int chroma_x_shift
Definition: h264.h:479
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)
Picture parameter set.
Definition: h264.h:200
int prev_mb_skipped
Definition: h264.h:338
int crop
Definition: h264.h:300
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:53
int16_t(*[2] motion_val)[2]
Definition: h264.h:271
int flags
Definition: h264.h:493
int frame_mbs_only_flag
Definition: h264.h:153
int mb_height
Definition: h264.h:555
H264Picture * delayed_pic[MAX_DELAYED_PIC_COUNT+2]
Definition: h264.h:593
int is_avc
Used to parse AVC variant of H.264.
Definition: h264.h:568
int mmco_index
Definition: h264.h:602
H264Ref default_ref[2]
Definition: h264.h:590
AVBufferPool * ref_index_pool
Definition: h264.h:688
MMCOOpcode
Memory management control operation opcode.
Definition: h264.h:244
uint8_t zigzag_scan8x8_cavlc[64]
Definition: h264.h:543
int next_slice_idx
Definition: h264.h:374
void ff_h264_decode_init_vlc(void)
Definition: h264_cavlc.c:327
H264Context.
Definition: h264.h:456
int16_t mb_padding[256 *2]
Definition: h264.h:441
static av_always_inline void write_back_motion(const H264Context *h, H264SliceContext *sl, int mb_type)
Definition: h264.h:934
AVFrame * f
Definition: h264.h:264
static av_always_inline void write_back_non_zero_count(const H264Context *h, H264SliceContext *sl)
Definition: h264.h:874
int chroma_qp_diff
Definition: h264.h:219
uint32_t num_units_in_tick
Definition: h264.h:172
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)
H264Picture * long_ref[32]
Definition: h264.h:592
int picture_structure
Definition: h264.h:528
#define AV_COPY32(d, s)
Definition: intreadwrite.h:586
int profile_idc
Definition: h264.h:138
unsigned current_sps_id
id of the current SPS
Definition: h264.h:520
MMCOOpcode opcode
Definition: h264.h:258
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:408
H.264 DSP functions.
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
Definition: h264.h:404
int topleft_mb_xy
Definition: h264.h:347
uint8_t * chroma_pred_mode_table
Definition: h264.h:537
int setup_finished
Definition: h264.h:675
H264SEIContext sei
Definition: h264.h:683
void ff_h264_pred_direct_motion(const H264Context *const h, H264SliceContext *sl, int *mb_type)
Definition: h264_direct.c:706
unsigned int crop_top
frame_cropping_rect_top_offset
Definition: h264.h:161
#define USES_LIST(a, list)
Definition: mpegutils.h:101
int fixed_frame_rate_flag
Definition: h264.h:174
static av_always_inline uint16_t pack8to16(unsigned a, unsigned b)
Definition: h264.h:826
int is_complex
Definition: h264.h:376
uint8_t scaling_matrix4[6][16]
Definition: h264.h:216
int ref2frm[MAX_SLICES][2][64]
reference to frame number lists, used in the loop filter, the first 2 are for -2,-1 ...
Definition: h264.h:689
int deblocking_filter_parameters_present
deblocking_filter_parameters_present_flag
Definition: h264.h:212
uint16_t sub_mb_type[4]
as a DCT coefficient is int32_t in high depth, we need to reserve twice the space.
Definition: h264.h:434
int short_pic_num
pic_num without wrapping (pic_num & max_pic_num)
Definition: h264.h:259
Definition: h264.h:305
const PPS * pps
Definition: h264.h:236
uint8_t
int full_range
Definition: h264.h:166
unsigned int crop_left
frame_cropping_rect_left_offset
Definition: h264.h:159
int offset_for_non_ref_pic
Definition: h264.h:146
int gaps_in_frame_num_allowed_flag
Definition: h264.h:150
int slice_alpha_c0_offset
Definition: h264.h:333
int poc
Definition: h264.h:310
int field_picture
whether or not picture was encoded in separate fields
Definition: h264.h:293
int bit_depth_chroma
bit_depth_chroma_minus8 + 8
Definition: h264.h:190
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:434
int ff_h264_alloc_tables(H264Context *h)
Allocate tables.
Definition: h264.c:180
enum AVColorPrimaries color_primaries
Definition: h264.h:168
int poc
frame POC
Definition: h264.h:283
void ff_h264_direct_dist_scale_factor(const H264Context *const h, H264SliceContext *sl)
Definition: h264_direct.c:51
int slice_type
Definition: h264.h:322
int cabac
entropy_coding_mode_flag
Definition: h264.h:202
static int find_start_code(const uint8_t *buf, int buf_size, int buf_index, int next_avc)
Definition: h264.h:973
Definition: h264.h:117
unsigned int crop_right
frame_cropping_rect_right_offset
Definition: h264.h:160
uint8_t(*[2] top_borders)[(16 *3)*2]
Definition: h264.h:415
int invalid_gap
Definition: h264.h:297
Context for storing H.264 prediction functions.
Definition: h264pred.h:92
uint32_t(*[6] dequant4_coeff)[16]
Definition: h264.h:225
quarterpel DSP functions
int frame_recovered
Initial frame has been completely recovered.
Definition: h264.h:665
int map_col_to_list0_field[2][2][16+32]
Definition: h264.h:399
int height
Definition: h264.h:478
static av_always_inline int pred_intra_mode(const H264Context *h, H264SliceContext *sl, int n)
Get the predicted intra4x4 prediction mode.
Definition: h264.h:846
#define height
int transform_bypass
qpprime_y_zero_transform_bypass_flag
Definition: h264.h:141
uint32_t(*[6] dequant8_coeff)[64]
Definition: h264.h:226
int redundant_pic_cnt_present
redundant_pic_cnt_present_flag
Definition: h264.h:214
bitstream reader API header.
int chroma_y_shift
Definition: h264.h:479
#define MAX_DELAYED_PIC_COUNT
Definition: h264.h:58
static void fill_rectangle(SDL_Surface *screen, int x, int y, int w, int h, int color, int update)
Definition: ffplay.c:801
AVBufferRef * qscale_table_buf
Definition: h264.h:267
H264Picture * parent
Definition: h264.h:313
int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl)
Decode a CABAC coded macroblock.
Definition: h264_cabac.c:1915
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:389
int recovered
picture at IDR or recovery point + recovery count
Definition: h264.h:296
#define AV_COPY64(d, s)
Definition: intreadwrite.h:590
int chroma_qp[2]
Definition: h264.h:327
The buffer pool.
const uint8_t * avpriv_find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state)
int resync_mb_x
Definition: h264.h:371
int last_pocs[MAX_DELAYED_PIC_COUNT]
Definition: h264.h:594
int width
Definition: h264.h:478
#define MAX_SLICES
The maximum number of slices supported by the decoder.
Definition: h264.h:72
void ff_h264_fill_mbaff_ref_list(H264SliceContext *sl)
Definition: h264_refs.c:404
Definition: h264.h:124
int slice_num
Definition: h264.h:321
unsigned int topright_samples_available
Definition: h264.h:362
void ff_h264_hl_decode_mb(const H264Context *h, H264SliceContext *sl)
Definition: h264_mb.c:798
enum AVColorTransferCharacteristic color_trc
Definition: h264.h:169
int mb_aff
mb_adaptive_frame_field_flag
Definition: h264.h:154
H264PredContext hpc
Definition: h264.h:502
AVBufferRef * sps_ref
Definition: h264.h:234
static av_always_inline int get_dct8x8_allowed(const H264Context *h, H264SliceContext *sl)
Definition: h264.h:961
int16_t * dc_val_base
Definition: h264.h:411
int poc_type
pic_order_cnt_type
Definition: h264.h:143
int context_initialized
Definition: h264.h:492
static av_always_inline void write_back_intra_pred_mode(const H264Context *h, H264SliceContext *sl)
Definition: h264.h:862
int constrained_intra_pred
constrained_intra_pred_flag
Definition: h264.h:213
ERContext er
Definition: h264.h:319
int nal_unit_type
Definition: h264.h:563
int num_reorder_frames
Definition: h264.h:177
void * hwaccel_picture_private
hardware accelerator private data
Definition: h264.h:277
int backup_height
Definition: h264.h:486
int map_col_to_list0[2][16+32]
Definition: h264.h:398
int time_offset_length
Definition: h264.h:184
int8_t intra4x4_pred_mode_cache[5 *8]
Definition: h264.h:344
int backup_width
Backup frame properties: needed, because they can be different between returned frame and last decode...
Definition: h264.h:485
H2645Packet pkt
Definition: h264.h:473
int deblocking_filter
disable_deblocking_filter_idc with 1 <-> 0
Definition: h264.h:332
uint8_t(*[2] mvd_table)[2]
Definition: h264.h:538
int prev_interlaced_frame
Complement sei_pic_struct SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced...
Definition: h264.h:639
int ref_poc[2][2][32]
POCs of the frames/fields used as reference (FIXME need per slice)
Definition: h264.h:290
ThreadFrame tf
Definition: h264.h:265
int weighted_pred
weighted_pred_flag
Definition: h264.h:207
#define IS_SKIP(a)
Definition: mpegutils.h:83
H264QpelContext h264qpel
Definition: h264.h:462
int direct_spatial_mv_pred
Definition: h264.h:388
#define CABAC(h)
Definition: h264.h:98
unsigned int top_samples_available
Definition: h264.h:361
int frame_num
frame_num (raw frame_num from slice header)
Definition: h264.h:284
static av_always_inline uint32_t pack16to32(unsigned a, unsigned b)
Definition: h264.h:817
int valid_recovery_point
Are the SEI recovery points looking valid.
Definition: h264.h:644
int residual_color_transform_flag
residual_colour_transform_flag
Definition: h264.h:191
uint8_t * list_counts
Array of list_count per MB specifying the slice type.
Definition: h264.h:531
int delta_pic_order_always_zero_flag
Definition: h264.h:145
int offset_for_top_to_bottom_field
Definition: h264.h:147
int slice_type_nos
S free slice type (SI/SP are remapped to I/P)
Definition: h264.h:323
int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl)
Decode a slice header.
Definition: h264_slice.c:1031
uint8_t zigzag_scan8x8[64]
Definition: h264.h:542
int mb_skip_run
Definition: h264.h:375
AVBufferRef * hwaccel_priv_buf
Definition: h264.h:276
static const uint8_t scan8[16 *3+3]
Definition: h264.h:801
const uint16_t ff_h264_mb_sizes[4]
Definition: h264.c:58
int crop_left
Definition: h264.h:301
uint8_t cabac_state[1024]
Definition: h264.h:449
int crop
frame_cropping_flag
Definition: h264.h:156
int ff_h264_decode_init(AVCodecContext *avctx)
Definition: h264.c:393
int pic_id
Definition: h264.h:311
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: h264.h:438
uint8_t * direct_table
Definition: h264.h:539
uint8_t scaling_matrix8[6][64]
Definition: h264.h:217
int nal_length_size
Number of bytes used for nal length (1, 2 or 4)
Definition: h264.h:569
useful rectangle filling function
size_t data_size
Definition: h264.h:194
AVBufferRef * motion_val_buf[2]
Definition: h264.h:270
Context for storing H.264 DSP functions.
Definition: h264dsp.h:41
int ref_frame_count
num_ref_frames
Definition: h264.h:149
int chroma_pred_mode
Definition: h264.h:341
#define AV_COPY16(d, s)
Definition: intreadwrite.h:582
int initial_cpb_removal_delay_length
initial_cpb_removal_delay_length_minus1 + 1
Definition: h264.h:186
uint32_t * mb2br_xy
Definition: h264.h:516
#define MB_TYPE_DIRECT2
Definition: avcodec.h:1248
#define FFMIN(a, b)
Definition: common.h:96
uint16_t * slice_table
slice_table_base + 2*mb_stride + 1
Definition: h264.h:524
uint8_t field_scan8x8_cavlc[64]
Definition: h264.h:546
int poc_cycle_length
num_ref_frames_in_pic_order_cnt_cycle
Definition: h264.h:148
CABACContext cabac
Cabac.
Definition: h264.h:448
int colour_description_present_flag
Definition: h264.h:167
int reference
Definition: h264.h:295
AVRational sar
Definition: h264.h:164
int redundant_pic_count
Definition: h264.h:381
int nb_slice_ctx
Definition: h264.h:471
H264PredWeightTable pwt
Definition: h264.h:336
int long_ref_count
number of actual long term references
Definition: h264.h:605
uint32_t * mb_type
Definition: h264.h:274
int ff_h264_ref_picture(H264Context *h, H264Picture *dst, H264Picture *src)
Definition: h264_picture.c:68
int top_mb_xy
Definition: h264.h:348
int next_mb_skipped
Definition: h264.h:339
#define MAX_SPS_COUNT
Definition: h264.h:53
uint8_t chroma_qp_table[2][QP_MAX_NUM+1]
pre-scaled (with chroma_qp_index_offset) version of qp_table
Definition: h264.h:218
void ff_h264_free_tables(H264Context *h)
Definition: h264.c:137
int init_qp
pic_init_qp_minus26 + 26
Definition: h264.h:209
int mmco_reset
Definition: h264.h:603
H264SliceContext * slice_ctx
Definition: h264.h:470
int direct_8x8_inference_flag
Definition: h264.h:155
int n
Definition: avisynth_c.h:547
int reference
Definition: h264.h:309
int max_pic_num
max_frame_num or 2 * max_frame_num for field pics.
Definition: h264.h:588
int top_borders_allocated[2]
Definition: h264.h:418
int ff_generate_sliding_window_mmcos(H264Context *h, int first_slice)
Definition: h264_refs.c:587
uint8_t scaling_matrix8[6][64]
Definition: h264.h:180
int curr_pic_num
frame_num for frames or 2 * frame_num + 1 for field pics.
Definition: h264.h:583
#define src
Definition: vp9dsp.c:530
Definition: h264.h:122
void ff_h264_init_cabac_states(const H264Context *h, H264SliceContext *sl)
Definition: h264_cabac.c:1264
unsigned int sps_id
Definition: h264.h:137
uint8_t * edge_emu_buffer
Definition: h264.h:414
int ff_h264_get_slice_type(const H264SliceContext *sl)
Reconstruct bitstream slice_type.
Definition: h264_slice.c:1812
int top_type
Definition: h264.h:353
int pic_order_present
pic_order_present_flag
Definition: h264.h:203
uint8_t zigzag_scan_q0[16]
Definition: h264.h:547
int bit_depth_luma
luma bit depth from sps to detect changes
Definition: h264.h:571
int topleft_type
Definition: h264.h:352
short offset_for_ref_frame[256]
Definition: h264.h:175
int chroma_format_idc
chroma format from sps to detect changes
Definition: h264.h:572
VideoDSPContext vdsp
Definition: h264.h:459
int intra16x16_pred_mode
Definition: h264.h:342
int timing_info_present_flag
Definition: h264.h:171
int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count)
Execute the reference picture marking (memory management control operations).
Definition: h264_refs.c:619
int mb_stride
Definition: h264.h:556
int postpone_filter
Definition: h264.h:499
int vcl_hrd_parameters_present_flag
Definition: h264.h:182
AVCodecContext * avctx
Definition: h264.h:458
uint8_t zigzag_scan8x8_q0[64]
Definition: h264.h:548
#define MB_TYPE_8x16
Definition: avcodec.h:1245
int last_qscale_diff
Definition: h264.h:329
AVBufferRef * pps_list[MAX_PPS_COUNT]
Definition: h264.h:231
void ff_h264_remove_all_refs(H264Context *h)
Definition: h264_refs.c:543
H264Picture * short_ref[32]
Definition: h264.h:591
int next_outputed_poc
Definition: h264.h:596
int field_poc[2]
top/bottom POC
Definition: h264.h:282
int recovery_frame
recovery_frame is the frame_num at which the next frame should be fully constructed.
Definition: h264.h:652
int max_contexts
Max number of threads / contexts.
Definition: h264.h:623
main external API structure.
Definition: avcodec.h:1649
int qp_thresh
QP threshold to skip loopfilter.
Definition: h264.h:328
int dpb_output_delay_length
dpb_output_delay_length_minus1 + 1
Definition: h264.h:188
Definition: h264.h:245
int vui_parameters_present_flag
Definition: h264.h:163
#define QP_MAX_NUM
Definition: h264.h:112
void * buf
Definition: avisynth_c.h:553
int resync_mb_y
Definition: h264.h:372
int8_t * qscale_table
Definition: h264.h:268
int constraint_set_flags
constraint_set[0-3]_flag
Definition: h264.h:192
static av_always_inline void write_back_motion_list(const H264Context *h, H264SliceContext *sl, int b_stride, int b_xy, int b8_xy, int mb_type, int list)
Definition: h264.h:898
int ff_h264_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Definition: h264_slice.c:297
Describe the class of an AVClass context structure.
Definition: log.h:67
uint8_t non_zero_count_cache[15 *8]
non zero coeff count cache.
Definition: h264.h:424
Definition: h264.h:119
rational number numerator/denominator
Definition: rational.h:43
int8_t * ref_index[2]
Definition: h264.h:280
#define MAX_MMCO_COUNT
Definition: h264.h:56
int pixel_shift
0 for 8-bit H.264, 1 for high-bit-depth H.264
Definition: h264.h:475
int mmco_reset
MMCO_RESET set this 1.
Definition: h264.h:285
int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb, int first_slice)
Definition: h264_refs.c:828
H264Picture * cur_pic_ptr
Definition: h264.h:466
ptrdiff_t mb_uvlinesize
Definition: h264.h:367
refcounted data buffer API
int mb_mbaff
mb_aff_frame && mb_field_decoding_flag
Definition: h264.h:379
uint8_t direct_cache[5 *8]
Definition: h264.h:432
int enable_er
Definition: h264.h:681
unsigned int sps_id
Definition: h264.h:201
int log2_max_poc_lsb
log2_max_pic_order_cnt_lsb_minus4
Definition: h264.h:144
ptrdiff_t mb_linesize
may be equal to s->linesize or s->linesize * 2, for mbaff
Definition: h264.h:366
int16_t slice_row[MAX_SLICES]
to detect when MAX_SLICES is too low
Definition: h264.h:679
int col_fieldoff
Definition: h264.h:390
ptrdiff_t linesize
Definition: h264.h:365
int block_offset[2 *(16 *3)]
block_offset[ 0..23] for frame macroblocks block_offset[24..47] for field macroblocks ...
Definition: h264.h:513
static struct @228 state
uint32_t time_scale
Definition: h264.h:173
int linesize[3]
Definition: h264.h:307
int transform_8x8_mode
transform_8x8_mode_flag
Definition: h264.h:215
ptrdiff_t uvlinesize
Definition: h264.h:365
H.264 / AVC / MPEG-4 prediction functions.
int pic_struct_present_flag
Definition: h264.h:183
uint8_t zigzag_scan[16]
Definition: h264.h:541
unsigned int list_count
Definition: h264.h:405
Definition: vp9.h:84
#define AV_ZERO128(d)
Definition: intreadwrite.h:622
int has_recovery_point
Definition: h264.h:667
int ff_h264_decode_picture_parameter_set(GetBitContext *gb, AVCodecContext *avctx, H264ParamSets *ps, int bit_length)
Decode PPS.
Definition: h264_ps.c:706
int left_type[LEFT_MBS]
Definition: h264.h:355
int mbaff
1 -> MBAFF frame 0-> not MBAFF
Definition: h264.h:292
A reference to a data buffer.
Definition: buffer.h:81
void ff_h264_flush_change(H264Context *h)
Definition: h264.c:756
AVBufferPool * qscale_table_pool
Definition: h264.h:685
H264Picture * next_output_pic
Definition: h264.h:595
AVBufferPool * motion_val_pool
Definition: h264.h:687
int mb_height
pic_height_in_map_units_minus1 + 1
Definition: h264.h:152
int topright_type
Definition: h264.h:354
int init_qs
pic_init_qs_minus26 + 26
Definition: h264.h:210
int pic_id
pic_num (short -> no wrap version of pic_num, pic_num & max_pic_num; long -> long_pic_num) ...
Definition: h264.h:287
common internal api header.
#define AV_COPY128(d, s)
Definition: intreadwrite.h:594
AVBufferRef * pps_ref
Definition: h264.h:233
int nal_hrd_parameters_present_flag
Definition: h264.h:181
uint16_t * slice_table_base
Definition: h264.h:576
size_t data_size
Definition: h264.h:221
int log2_max_frame_num
log2_max_frame_num_minus4 + 4
Definition: h264.h:142
int missing_fields
Definition: h264.h:669
#define MB_TYPE_8x8
Definition: avcodec.h:1246
H264ParamSets ps
Definition: h264.h:574
Bi-dir predicted.
Definition: avutil.h:268
int cur_chroma_format_idc
Definition: h264.h:677
int8_t * intra4x4_pred_mode
Definition: h264.h:345
int long_arg
index, pic_num, or num long refs depending on opcode
Definition: h264.h:260
#define MB_TYPE_16x8
Definition: avcodec.h:1244
Definition: h264.h:118
Core video DSP helper functions.
int bit_depth_luma
bit_depth_luma_minus8 + 8
Definition: h264.h:189
int ff_h264_decode_seq_parameter_set(GetBitContext *gb, AVCodecContext *avctx, H264ParamSets *ps, int ignore_truncation)
Decode SPS.
Definition: h264_ps.c:318
static av_always_inline int get_chroma_qp(const H264Context *h, int t, int qscale)
Get the chroma qp.
Definition: h264.h:838
int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup)
Definition: h264_picture.c:154
void ff_h264_set_erpic(ERPicture *dst, H264Picture *src)
Definition: h264_picture.c:131
uint8_t zigzag_scan8x8_cavlc_q0[64]
Definition: h264.h:549
int8_t ref_cache[2][5 *8]
Definition: h264.h:430
Decoded Picture Buffer (DPB).
Definition: vaapi_h264.c:81
#define IS_8X8(a)
Definition: mpegutils.h:91
H264Picture cur_pic
Definition: h264.h:467
int mb_width
Definition: h264.h:555
void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height)
Definition: h264.c:102
int current_slice
current slice number, used to initialize slice_num of each thread/context
Definition: h264.h:615
int mb_width
pic_width_in_mbs_minus1 + 1
Definition: h264.h:151
int slice_group_count
num_slice_groups_minus1 + 1
Definition: h264.h:204
uint32_t * mb2b_xy
Definition: h264.h:515
H264Ref ref_list[2][48]
0..15: frame refs, 16..47: mbaff field refs.
Definition: h264.h:406
uint8_t field_scan8x8_cavlc_q0[64]
Definition: h264.h:552
int cpb_cnt
See H.264 E.1.2.
Definition: h264.h:185
int cur_bit_depth_luma
Definition: h264.h:678
uint32_t dequant4_buffer[6][QP_MAX_NUM+1][16]
Definition: h264.h:223
AVBufferRef * ref_index_buf[2]
Definition: h264.h:279
H264Picture last_pic_for_ec
Definition: h264.h:468
int au_pps_id
pps_id of current access unit
Definition: h264.h:522
const uint8_t * intra_pcm_ptr
Definition: h264.h:410
SPS * sps
Definition: h264.h:238
H264DSPContext h264dsp
Definition: h264.h:460
int crop_top
Definition: h264.h:302
unsigned int left_samples_available
Definition: h264.h:363
int ref_count[2][2]
number of entries in ref_poc (FIXME need per slice)
Definition: h264.h:291
uint8_t(*[2] mvd_table)[2]
Definition: h264.h:443
Definition: h264.h:121
uint8_t field_scan8x8[64]
Definition: h264.h:545
int slice_type_fixed
Definition: h264.h:324
void ff_h264_ps_uninit(H264ParamSets *ps)
Uninit H264 param sets structure.
Definition: h264_ps.c:301
#define av_always_inline
Definition: attributes.h:39
int slice_beta_offset
Definition: h264.h:334
int8_t * intra4x4_pred_mode
Definition: h264.h:501
int dist_scale_factor_field[2][32]
Definition: h264.h:397
uint32_t dequant8_buffer[6][QP_MAX_NUM+1][64]
Definition: h264.h:224
int cpb_removal_delay_length
cpb_removal_delay_length_minus1 + 1
Definition: h264.h:187
#define AV_RN64A(p)
Definition: intreadwrite.h:530
uint8_t field_scan_q0[16]
Definition: h264.h:550
#define LIST_NOT_USED
Definition: h264.h:506
int mb_field_decoding_flag
Definition: h264.h:378
uint8_t(* non_zero_count)[48]
Definition: h264.h:504
H.264 decoder/parser shared code.
unsigned int crop_bottom
frame_cropping_rect_bottom_offset
Definition: h264.h:162
uint8_t * bipred_scratchpad
Definition: h264.h:413
float min
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
int droppable
Definition: h264.h:489
int level_idc
Definition: h264.h:139
int nal_ref_idc
Definition: h264.h:562
GetBitContext gb
Definition: h264.h:318
uint8_t field_scan[16]
Definition: h264.h:544
int cabac_init_idc
Definition: h264.h:450
int b_stride
Definition: h264.h:517
Context Adaptive Binary Arithmetic Coder.
int left_cbp
Definition: h264.h:394
int short_ref_count
number of actual short term references
Definition: h264.h:606
int mb_slice_group_map_type
Definition: h264.h:205
enum AVColorSpace colorspace
Definition: h264.h:170