h264: Add an AVClass pointer to H264Context
[libav.git] / libavcodec / h264.h
CommitLineData
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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 *
2912e87a 5 * This file is part of Libav.
26b4fe82 6 *
2912e87a 7 * Libav is free software; you can redistribute it and/or
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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 *
2912e87a 12 * Libav is distributed in the hope that it will be useful,
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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
2912e87a 18 * License along with Libav; if not, write to the Free Software
26b4fe82 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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20 */
21
22/**
ba87f080 23 * @file
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24 * H.264 / AVC / MPEG4 part10 codec.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
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28#ifndef AVCODEC_H264_H
29#define AVCODEC_H264_H
26b4fe82 30
19769ece 31#include "libavutil/intreadwrite.h"
d15368ee 32#include "libavutil/thread.h"
26b4fe82 33#include "cabac.h"
5f401b7b 34#include "error_resilience.h"
2c541554 35#include "get_bits.h"
79dad2a9 36#include "h264chroma.h"
4693b031 37#include "h264dsp.h"
c92a30bb 38#include "h264pred.h"
e9d81735 39#include "h264qpel.h"
6a85dfc8 40#include "internal.h"
e0c16e4e 41#include "mpegutils.h"
d24e9a99 42#include "parser.h"
368f5035 43#include "qpeldsp.h"
e1e94902 44#include "rectangle.h"
d24e9a99 45#include "videodsp.h"
26b4fe82 46
5d1c2e53 47#define H264_MAX_PICTURE_COUNT 32
e3c2d0f3 48#define H264_MAX_THREADS 16
5d1c2e53 49
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50#define MAX_SPS_COUNT 32
51#define MAX_PPS_COUNT 256
26b4fe82 52
be545b8a 53#define MAX_MMCO_COUNT 66
26b4fe82 54
be545b8a 55#define MAX_DELAYED_PIC_COUNT 16
64b9d48f 56
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57/* Compiling in interlaced support reduces the speed
58 * of progressive decoding by about 2%. */
59#define ALLOW_INTERLACE
60
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61#define FMO 0
62
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63/**
64 * The maximum number of slices supported by the decoder.
65 * must be a power of 2
66 */
6fd91fa1 67#define MAX_SLICES 32
b735aeea 68
26b4fe82 69#ifdef ALLOW_INTERLACE
82313eaa 70#define MB_MBAFF(h) h->mb_mbaff
da6be8fc 71#define MB_FIELD(h) h->mb_field_decoding_flag
7bece9b2 72#define FRAME_MBAFF(h) h->mb_aff_frame
7fa00653 73#define FIELD_PICTURE(h) (h->picture_structure != PICT_FRAME)
556f8a06 74#define LEFT_MBS 2
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75#define LTOP 0
76#define LBOT 1
77#define LEFT(i) (i)
26b4fe82 78#else
82313eaa 79#define MB_MBAFF(h) 0
da6be8fc 80#define MB_FIELD(h) 0
7bece9b2 81#define FRAME_MBAFF(h) 0
7fa00653 82#define FIELD_PICTURE(h) 0
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83#undef IS_INTERLACED
84#define IS_INTERLACED(mb_type) 0
556f8a06 85#define LEFT_MBS 1
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86#define LTOP 0
87#define LBOT 0
88#define LEFT(i) 0
26b4fe82 89#endif
a6931d8e 90#define FIELD_OR_MBAFF_PICTURE(h) (FRAME_MBAFF(h) || FIELD_PICTURE(h))
26b4fe82 91
ddd60f28 92#ifndef CABAC
6d2b6f21 93#define CABAC(h) h->pps.cabac
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94#endif
95
e962bd08 96#define CHROMA422(h) (h->sps.chroma_format_idc == 2)
23e85be5 97#define CHROMA444(h) (h->sps.chroma_format_idc == 3)
c90b9442 98
be545b8a 99#define EXTENDED_SAR 255
44ee6135 100
be545b8a 101#define MB_TYPE_REF0 MB_TYPE_ACPRED // dirty but it fits in 16 bit
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102#define MB_TYPE_8x8DCT 0x01000000
103#define IS_REF0(a) ((a) & MB_TYPE_REF0)
104#define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT)
105
be545b8a 106#define QP_MAX_NUM (51 + 2 * 6) // The maximum supported qp
ea6f00c4 107
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108/* NAL unit types */
109enum {
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110 NAL_SLICE = 1,
111 NAL_DPA = 2,
112 NAL_DPB = 3,
113 NAL_DPC = 4,
114 NAL_IDR_SLICE = 5,
115 NAL_SEI = 6,
116 NAL_SPS = 7,
117 NAL_PPS = 8,
118 NAL_AUD = 9,
119 NAL_END_SEQUENCE = 10,
120 NAL_END_STREAM = 11,
121 NAL_FILLER_DATA = 12,
122 NAL_SPS_EXT = 13,
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123 NAL_AUXILIARY_SLICE = 19,
124 NAL_FF_IGNORE = 0xff0f001,
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125};
126
26b4fe82 127/**
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128 * SEI message types
129 */
130typedef enum {
304e916a 131 SEI_TYPE_BUFFERING_PERIOD = 0, ///< buffering period (H.264, D.1.1)
be545b8a 132 SEI_TYPE_PIC_TIMING = 1, ///< picture timing
271ce76d 133 SEI_TYPE_USER_DATA_REGISTERED = 4, ///< registered user data as specified by Rec. ITU-T T.35
be545b8a 134 SEI_TYPE_USER_DATA_UNREGISTERED = 5, ///< unregistered user data
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135 SEI_TYPE_RECOVERY_POINT = 6, ///< recovery point (frame # to decoder sync)
136 SEI_TYPE_FRAME_PACKING = 45, ///< frame packing arrangement
18e3d61e 137 SEI_TYPE_DISPLAY_ORIENTATION = 47, ///< display orientation
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138} SEI_Type;
139
140/**
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141 * pic_struct in picture timing SEI message
142 */
143typedef enum {
144 SEI_PIC_STRUCT_FRAME = 0, ///< 0: %frame
145 SEI_PIC_STRUCT_TOP_FIELD = 1, ///< 1: top field
146 SEI_PIC_STRUCT_BOTTOM_FIELD = 2, ///< 2: bottom field
147 SEI_PIC_STRUCT_TOP_BOTTOM = 3, ///< 3: top field, bottom field, in that order
148 SEI_PIC_STRUCT_BOTTOM_TOP = 4, ///< 4: bottom field, top field, in that order
149 SEI_PIC_STRUCT_TOP_BOTTOM_TOP = 5, ///< 5: top field, bottom field, top field repeated, in that order
150 SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM = 6, ///< 6: bottom field, top field, bottom field repeated, in that order
151 SEI_PIC_STRUCT_FRAME_DOUBLING = 7, ///< 7: %frame doubling
152 SEI_PIC_STRUCT_FRAME_TRIPLING = 8 ///< 8: %frame tripling
153} SEI_PicStructType;
154
155/**
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156 * Sequence parameter set
157 */
be545b8a 158typedef struct SPS {
3a057670 159 unsigned int sps_id;
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160 int profile_idc;
161 int level_idc;
0af6967e 162 int chroma_format_idc;
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163 int transform_bypass; ///< qpprime_y_zero_transform_bypass_flag
164 int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4
165 int poc_type; ///< pic_order_cnt_type
166 int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4
167 int delta_pic_order_always_zero_flag;
168 int offset_for_non_ref_pic;
169 int offset_for_top_to_bottom_field;
170 int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle
171 int ref_frame_count; ///< num_ref_frames
172 int gaps_in_frame_num_allowed_flag;
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173 int mb_width; ///< pic_width_in_mbs_minus1 + 1
174 int mb_height; ///< pic_height_in_map_units_minus1 + 1
26b4fe82 175 int frame_mbs_only_flag;
be545b8a 176 int mb_aff; ///< mb_adaptive_frame_field_flag
26b4fe82 177 int direct_8x8_inference_flag;
be545b8a 178 int crop; ///< frame_cropping_flag
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179
180 /* those 4 are already in luma samples */
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181 unsigned int crop_left; ///< frame_cropping_rect_left_offset
182 unsigned int crop_right; ///< frame_cropping_rect_right_offset
183 unsigned int crop_top; ///< frame_cropping_rect_top_offset
184 unsigned int crop_bottom; ///< frame_cropping_rect_bottom_offset
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185 int vui_parameters_present_flag;
186 AVRational sar;
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187 int video_signal_type_present_flag;
188 int full_range;
189 int colour_description_present_flag;
190 enum AVColorPrimaries color_primaries;
191 enum AVColorTransferCharacteristic color_trc;
192 enum AVColorSpace colorspace;
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193 int timing_info_present_flag;
194 uint32_t num_units_in_tick;
195 uint32_t time_scale;
196 int fixed_frame_rate_flag;
be545b8a 197 short offset_for_ref_frame[256]; // FIXME dyn aloc?
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198 int bitstream_restriction_flag;
199 int num_reorder_frames;
200 int scaling_matrix_present;
201 uint8_t scaling_matrix4[6][16];
c90b9442 202 uint8_t scaling_matrix8[6][64];
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203 int nal_hrd_parameters_present_flag;
204 int vcl_hrd_parameters_present_flag;
205 int pic_struct_present_flag;
206 int time_offset_length;
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207 int cpb_cnt; ///< See H.264 E.1.2
208 int initial_cpb_removal_delay_length; ///< initial_cpb_removal_delay_length_minus1 + 1
209 int cpb_removal_delay_length; ///< cpb_removal_delay_length_minus1 + 1
210 int dpb_output_delay_length; ///< dpb_output_delay_length_minus1 + 1
211 int bit_depth_luma; ///< bit_depth_luma_minus8 + 8
212 int bit_depth_chroma; ///< bit_depth_chroma_minus8 + 8
213 int residual_color_transform_flag; ///< residual_colour_transform_flag
214 int constraint_set_flags; ///< constraint_set[0-3]_flag
072be3e8 215 int new; ///< flag to keep track if the decoder context needs re-init due to changed SPS
be545b8a 216} SPS;
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217
218/**
219 * Picture parameter set
220 */
be545b8a 221typedef struct PPS {
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222 unsigned int sps_id;
223 int cabac; ///< entropy_coding_mode_flag
224 int pic_order_present; ///< pic_order_present_flag
225 int slice_group_count; ///< num_slice_groups_minus1 + 1
226 int mb_slice_group_map_type;
227 unsigned int ref_count[2]; ///< num_ref_idx_l0/1_active_minus1 + 1
228 int weighted_pred; ///< weighted_pred_flag
229 int weighted_bipred_idc;
230 int init_qp; ///< pic_init_qp_minus26 + 26
231 int init_qs; ///< pic_init_qs_minus26 + 26
4691a77d 232 int chroma_qp_index_offset[2];
26b4fe82 233 int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
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234 int constrained_intra_pred; ///< constrained_intra_pred_flag
235 int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag
236 int transform_8x8_mode; ///< transform_8x8_mode_flag
26b4fe82 237 uint8_t scaling_matrix4[6][16];
c90b9442 238 uint8_t scaling_matrix8[6][64];
be545b8a 239 uint8_t chroma_qp_table[2][64]; ///< pre-scaled (with chroma_qp_index_offset) version of qp_table
4691a77d 240 int chroma_qp_diff;
be545b8a 241} PPS;
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242
243/**
244 * Memory management control operation opcode.
245 */
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246typedef enum MMCOOpcode {
247 MMCO_END = 0,
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248 MMCO_SHORT2UNUSED,
249 MMCO_LONG2UNUSED,
250 MMCO_SHORT2LONG,
251 MMCO_SET_MAX_LONG,
252 MMCO_RESET,
253 MMCO_LONG,
254} MMCOOpcode;
255
256/**
257 * Memory management control operation.
258 */
be545b8a 259typedef struct MMCO {
26b4fe82 260 MMCOOpcode opcode;
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261 int short_pic_num; ///< pic_num without wrapping (pic_num & max_pic_num)
262 int long_arg; ///< index, pic_num, or num long refs depending on opcode
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263} MMCO;
264
9b749c82 265typedef struct H264Picture {
a0f29460 266 AVFrame *f;
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267 ThreadFrame tf;
268
269 AVBufferRef *qscale_table_buf;
270 int8_t *qscale_table;
271
272 AVBufferRef *motion_val_buf[2];
273 int16_t (*motion_val[2])[2];
274
275 AVBufferRef *mb_type_buf;
276 uint32_t *mb_type;
277
278 AVBufferRef *hwaccel_priv_buf;
279 void *hwaccel_picture_private; ///< hardware accelerator private data
280
281 AVBufferRef *ref_index_buf[2];
282 int8_t *ref_index[2];
283
284 int field_poc[2]; ///< top/bottom POC
285 int poc; ///< frame POC
286 int frame_num; ///< frame_num (raw frame_num from slice header)
287 int mmco_reset; /**< MMCO_RESET set this 1. Reordering code must
288 not mix pictures before and after MMCO_RESET. */
289 int pic_id; /**< pic_num (short -> no wrap version of pic_num,
290 pic_num & max_pic_num; long -> long_pic_num) */
291 int long_ref; ///< 1->long term reference 0->short term reference
292 int ref_poc[2][2][32]; ///< POCs of the frames used as reference (FIXME need per slice)
293 int ref_count[2][2]; ///< number of entries in ref_poc (FIXME need per slice)
294 int mbaff; ///< 1 -> MBAFF frame 0-> not MBAFF
295 int field_picture; ///< whether or not picture was encoded in separate fields
296
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297 int reference;
298 int recovered; ///< picture at IDR or recovery point + recovery count
299} H264Picture;
300
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301typedef struct H264Ref {
302 uint8_t *data[3];
303 int linesize[3];
304
305 int reference;
306 int poc;
307 int pic_id;
308
309 H264Picture *parent;
310} H264Ref;
311
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312typedef struct H264SliceContext {
313 struct H264Context *h264;
f42485db 314 GetBitContext gb;
582683b6 315 ERContext er;
92c6c2a6 316
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317 int slice_num;
318 int slice_type;
319 int slice_type_nos; ///< S free slice type (SI/SP are remapped to I/P)
320 int slice_type_fixed;
321
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322 int qscale;
323 int chroma_qp[2]; // QPc
06789ad3 324 int qp_thresh; ///< QP threshold to skip loopfilter
5c8280c3 325 int last_qscale_diff;
d231e84b 326
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327 // deblock
328 int deblocking_filter; ///< disable_deblocking_filter_idc with 1 <-> 0
329 int slice_alpha_c0_offset;
330 int slice_beta_offset;
331
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332 // Weighted pred stuff
333 int use_weight;
334 int use_weight_chroma;
335 int luma_log2_weight_denom;
336 int chroma_log2_weight_denom;
337 int luma_weight_flag[2]; ///< 7.4.3.2 luma_weight_lX_flag
338 int chroma_weight_flag[2]; ///< 7.4.3.2 chroma_weight_lX_flag
339 // The following 2 can be changed to int8_t but that causes 10cpu cycles speedloss
340 int luma_weight[48][2][2];
341 int chroma_weight[48][2][2][2];
342 int implicit_weight[48][48][2];
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343
344 int prev_mb_skipped;
345 int next_mb_skipped;
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346
347 int chroma_pred_mode;
348 int intra16x16_pred_mode;
8b00f4df 349
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350 int8_t intra4x4_pred_mode_cache[5 * 8];
351 int8_t(*intra4x4_pred_mode);
352
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353 int topleft_mb_xy;
354 int top_mb_xy;
355 int topright_mb_xy;
356 int left_mb_xy[LEFT_MBS];
357
358 int topleft_type;
359 int top_type;
360 int topright_type;
361 int left_type[LEFT_MBS];
362
363 const uint8_t *left_block;
364 int topleft_partition;
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365
366 unsigned int topleft_samples_available;
367 unsigned int top_samples_available;
368 unsigned int topright_samples_available;
369 unsigned int left_samples_available;
f69574cf 370
c28ed1d7 371 ptrdiff_t linesize, uvlinesize;
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372 ptrdiff_t mb_linesize; ///< may be equal to s->linesize or s->linesize * 2, for mbaff
373 ptrdiff_t mb_uvlinesize;
374
d4d9068c 375 int mb_x, mb_y;
0edbe6fa 376 int mb_xy;
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377 int resync_mb_x;
378 int resync_mb_y;
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379 // index of the first MB of the next slice
380 int next_slice_idx;
47a0d393 381 int mb_skip_run;
07c5ca55 382 int is_complex;
47a0d393 383
bc98e8c0 384 int mb_field_decoding_flag;
e9b2383b 385 int mb_mbaff; ///< mb_aff_frame && mb_field_decoding_flag
bc98e8c0 386
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387 int redundant_pic_count;
388
f69574cf 389 /**
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390 * number of neighbors (top and/or left) that used 8x8 dct
391 */
392 int neighbor_transform_size;
393
066aafce 394 int direct_spatial_mv_pred;
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395 int col_parity;
396 int col_fieldoff;
066aafce 397
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398 int cbp;
399 int top_cbp;
400 int left_cbp;
401
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402 int dist_scale_factor[32];
403 int dist_scale_factor_field[2][32];
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404 int map_col_to_list0[2][16 + 32];
405 int map_col_to_list0_field[2][2][16 + 32];
ee0d774d 406
99a35d1c 407 /**
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408 * num_ref_idx_l0/1_active_minus1 + 1
409 */
410 unsigned int ref_count[2]; ///< counts frames or fields, depending on current mb mode
411 unsigned int list_count;
a12d3188 412 H264Ref ref_list[2][48]; /**< 0..15: frame refs, 16..47: mbaff field refs.
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413 * Reordered version of default_ref_list
414 * according to picture reordering in slice header */
415 int ref2frm[MAX_SLICES][2][64]; ///< reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
416
b063582e 417 const uint8_t *intra_pcm_ptr;
582683b6 418 int16_t *dc_val_base;
95eb35f3 419
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420 uint8_t *bipred_scratchpad;
421 uint8_t *edge_emu_buffer;
c377e04d 422 uint8_t (*top_borders[2])[(16 * 3) * 2];
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423 int bipred_scratchpad_allocated;
424 int edge_emu_buffer_allocated;
c377e04d 425 int top_borders_allocated[2];
36d04801 426
95eb35f3 427 /**
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428 * non zero coeff count cache.
429 * is 64 if not available.
430 */
431 DECLARE_ALIGNED(8, uint8_t, non_zero_count_cache)[15 * 8];
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432
433 /**
434 * Motion vector cache.
435 */
436 DECLARE_ALIGNED(16, int16_t, mv_cache)[2][5 * 8][2];
437 DECLARE_ALIGNED(8, int8_t, ref_cache)[2][5 * 8];
6479c79f 438 DECLARE_ALIGNED(16, uint8_t, mvd_cache)[2][5 * 8][2];
bd3e460b 439 uint8_t direct_cache[5 * 8];
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440
441 DECLARE_ALIGNED(8, uint16_t, sub_mb_type)[4];
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442
443 ///< as a dct coeffecient is int32_t in high depth, we need to reserve twice the space.
444 DECLARE_ALIGNED(16, int16_t, mb)[16 * 48 * 2];
445 DECLARE_ALIGNED(16, int16_t, mb_luma_dc)[3][16 * 2];
446 ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either
447 ///< check that i is not too large or ensure that there is some unused stuff after mb
448 int16_t mb_padding[256 * 2];
30da98ad 449
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450 uint8_t (*mvd_table[2])[2];
451
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452 /**
453 * Cabac
454 */
455 CABACContext cabac;
456 uint8_t cabac_state[1024];
a9b201ca 457 int cabac_init_idc;
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458
459 // rbsp buffer used for this slice
460 uint8_t *rbsp_buffer;
461 unsigned int rbsp_buffer_size;
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462} H264SliceContext;
463
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464/**
465 * H264Context
466 */
be545b8a 467typedef struct H264Context {
f435d081 468 const AVClass *class;
2c541554 469 AVCodecContext *avctx;
2c541554 470 VideoDSPContext vdsp;
4693b031 471 H264DSPContext h264dsp;
79dad2a9 472 H264ChromaContext h264chroma;
e9d81735 473 H264QpelContext h264qpel;
2c541554 474 GetBitContext gb;
2c541554 475
7a4f74ee 476 H264Picture DPB[H264_MAX_PICTURE_COUNT];
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477 H264Picture *cur_pic_ptr;
478 H264Picture cur_pic;
2c541554 479
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480 H264SliceContext *slice_ctx;
481 int nb_slice_ctx;
482
6e3ef511 483 int pixel_shift; ///< 0 for 8-bit H264, 1 for high-bit-depth H264
26b4fe82 484
5e83d9ac 485 /* coded dimensions -- 16 * mb w/h */
2c541554 486 int width, height;
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487 int chroma_x_shift, chroma_y_shift;
488
2c541554 489 int droppable;
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490 int coded_picture_number;
491 int low_delay;
492
493 int context_initialized;
494 int flags;
495 int workaround_bugs;
496
be545b8a 497 int8_t(*intra4x4_pred_mode);
c92a30bb 498 H264PredContext hpc;
26b4fe82 499
c90b9442 500 uint8_t (*non_zero_count)[48];
26b4fe82 501
be545b8a 502#define LIST_NOT_USED -1 // FIXME rename?
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503#define PART_NOT_AVAILABLE -2
504
505 /**
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506 * block_offset[ 0..23] for frame macroblocks
507 * block_offset[24..47] for field macroblocks
508 */
be545b8a 509 int block_offset[2 * (16 * 3)];
26b4fe82 510
be545b8a 511 uint32_t *mb2b_xy; // FIXME are these 4 a good idea?
d43c1922 512 uint32_t *mb2br_xy;
be545b8a 513 int b_stride; // FIXME use s->b4_stride
26b4fe82 514
26b4fe82 515 SPS sps; ///< current sps
15210354 516 PPS pps; ///< current pps
26b4fe82 517
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518 uint32_t dequant4_buffer[6][QP_MAX_NUM + 1][16]; // FIXME should these be moved down?
519 uint32_t dequant8_buffer[6][QP_MAX_NUM + 1][64];
520 uint32_t(*dequant4_coeff[6])[16];
521 uint32_t(*dequant8_coeff[6])[64];
26b4fe82 522
be545b8a 523 uint16_t *slice_table; ///< slice_table_base + 2*mb_stride + 1
26b4fe82 524
be545b8a 525 // interlacing specific flags
26b4fe82 526 int mb_aff_frame;
2c541554
AK
527 int picture_structure;
528 int first_field;
26b4fe82 529
be545b8a 530 uint8_t *list_counts; ///< Array of list_count per MB specifying the slice type
26b4fe82 531
be545b8a
DB
532 /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0, 1, 2), 0x0? luma_cbp */
533 uint16_t *cbp_table;
e7226984 534
26b4fe82 535 /* chroma_pred_mode for i4x4 or i16x16, else 0 */
be545b8a 536 uint8_t *chroma_pred_mode_table;
be545b8a 537 uint8_t (*mvd_table[2])[2];
be545b8a 538 uint8_t *direct_table;
26b4fe82
AJ
539
540 uint8_t zigzag_scan[16];
541 uint8_t zigzag_scan8x8[64];
542 uint8_t zigzag_scan8x8_cavlc[64];
543 uint8_t field_scan[16];
544 uint8_t field_scan8x8[64];
545 uint8_t field_scan8x8_cavlc[64];
546 const uint8_t *zigzag_scan_q0;
547 const uint8_t *zigzag_scan8x8_q0;
548 const uint8_t *zigzag_scan8x8_cavlc_q0;
549 const uint8_t *field_scan_q0;
550 const uint8_t *field_scan8x8_q0;
551 const uint8_t *field_scan8x8_cavlc_q0;
552
553 int x264_build;
afebe2f7 554
d4d9068c 555 int mb_y;
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AK
556 int mb_height, mb_width;
557 int mb_stride;
558 int mb_num;
bd8868e0 559
be545b8a
DB
560 // =============================================================
561 // Things below are not used in the MB or more inner code
bd8868e0
MN
562
563 int nal_ref_idc;
564 int nal_unit_type;
bd8868e0
MN
565
566 /**
567 * Used to parse AVC variant of h264
568 */
be545b8a
DB
569 int is_avc; ///< this flag is != 0 if codec is avc1
570 int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
bd8868e0 571
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572 int bit_depth_luma; ///< luma bit depth from sps to detect changes
573 int chroma_format_idc; ///< chroma format from sps to detect changes
9e696d2e 574
bd8868e0
MN
575 SPS *sps_buffers[MAX_SPS_COUNT];
576 PPS *pps_buffers[MAX_PPS_COUNT];
577
be545b8a 578 int dequant_coeff_pps; ///< reinit tables when pps changes
bd8868e0
MN
579
580 uint16_t *slice_table_base;
581
be545b8a 582 // POC stuff
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MN
583 int poc_lsb;
584 int poc_msb;
585 int delta_poc_bottom;
586 int delta_poc[2];
587 int frame_num;
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DB
588 int prev_poc_msb; ///< poc_msb of the last reference pic for POC type 0
589 int prev_poc_lsb; ///< poc_lsb of the last reference pic for POC type 0
590 int frame_num_offset; ///< for POC type 2
591 int prev_frame_num_offset; ///< for POC type 2
592 int prev_frame_num; ///< frame_num of the last pic for POC type 1/2
bd8868e0
MN
593
594 /**
be545b8a 595 * frame_num for frames or 2 * frame_num + 1 for field pics.
bd8868e0
MN
596 */
597 int curr_pic_num;
598
599 /**
be545b8a 600 * max_frame_num or 2 * max_frame_num for field pics.
bd8868e0
MN
601 */
602 int max_pic_num;
603
9b749c82
VG
604 H264Picture *short_ref[32];
605 H264Picture *long_ref[32];
606 H264Picture *delayed_pic[MAX_DELAYED_PIC_COUNT + 2]; // FIXME size?
ea2bb12e 607 int last_pocs[MAX_DELAYED_PIC_COUNT];
9b749c82 608 H264Picture *next_output_pic;
6a9c8594 609 int next_outputed_poc;
bd8868e0
MN
610
611 /**
612 * memory management control operations buffer.
613 */
614 MMCO mmco[MAX_MMCO_COUNT];
615 int mmco_index;
adedd840 616 int mmco_reset;
bd8868e0 617
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DB
618 int long_ref_count; ///< number of actual long term references
619 int short_ref_count; ///< number of actual short term references
bd8868e0 620
afebe2f7 621 /**
21a19b79 622 * @name Members for slice based multithreading
afebe2f7
623 * @{
624 */
afebe2f7
625 /**
626 * current slice number, used to initalize slice_num of each thread/context
627 */
628 int current_slice;
629
630 /**
631 * Max number of threads / contexts.
632 * This is equal to AVCodecContext.thread_count unless
633 * multithreaded decoding is impossible, in which case it is
634 * reduced to 1.
635 */
636 int max_contexts;
637
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638 int slice_context_count;
639
afebe2f7
640 /**
641 * 1 if the single thread fallback warning has already been
642 * displayed, 0 otherwise.
643 */
644 int single_decode_warning;
645
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AK
646 enum AVPictureType pict_type;
647
afebe2f7
648 /** @} */
649
b09a7c05
650 /**
651 * pic_struct in picture timing SEI message
652 */
653 SEI_PicStructType sei_pic_struct;
89db0bae 654
37a558fe 655 /**
b19d493f
HY
656 * Complement sei_pic_struct
657 * SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames.
658 * However, soft telecined frames may have these values.
659 * This is used in an attempt to flag soft telecine progressive.
660 */
661 int prev_interlaced_frame;
662
663 /**
5b10ef72
VG
664 * frame_packing_arrangment SEI message
665 */
666 int sei_frame_packing_present;
667 int frame_packing_arrangement_type;
668 int content_interpretation_type;
669 int quincunx_subsampling;
670
671 /**
18e3d61e
VG
672 * display orientation SEI message
673 */
674 int sei_display_orientation_present;
675 int sei_anticlockwise_rotation;
676 int sei_hflip, sei_vflip;
677
678 /**
271ce76d
VG
679 * User data registered by Rec. ITU-T T.35 SEI
680 */
681 int sei_reguserdata_afd_present;
682 uint8_t active_format_description;
b0017579
KK
683 int a53_caption_size;
684 uint8_t *a53_caption;
271ce76d
VG
685
686 /**
70e01da3
IS
687 * Bit set of clock types for fields/frames in picture timing SEI message.
688 * For each found ct_type, appropriate bit is set (e.g., bit 1 for
689 * interlaced).
690 */
691 int sei_ct_type;
692
693 /**
ff594f81
IS
694 * dpb_output_delay in picture timing SEI message, see H.264 C.2.2
695 */
696 int sei_dpb_output_delay;
697
698 /**
cf6065ca
IS
699 * cpb_removal_delay in picture timing SEI message, see H.264 C.1.2
700 */
701 int sei_cpb_removal_delay;
702
703 /**
37a558fe
IS
704 * recovery_frame_cnt from SEI message
705 *
706 * Set to -1 if no recovery point SEI message found or to number of frames
707 * before playback synchronizes. Frames having recovery point are key
708 * frames.
709 */
710 int sei_recovery_frame_cnt;
711
28096e0a
JS
712 /**
713 * recovery_frame is the frame_num at which the next frame should
714 * be fully constructed.
715 *
716 * Set to -1 when not expecting a recovery point.
717 */
718 int recovery_frame;
719
720/**
721 * We have seen an IDR, so all the following frames in coded order are correctly
722 * decodable.
723 */
724#define FRAME_RECOVERED_IDR (1 << 0)
725/**
726 * Sufficient number of frames have been decoded since a SEI recovery point,
727 * so all the following frames in presentation order are correct.
728 */
729#define FRAME_RECOVERED_SEI (1 << 1)
730
731 int frame_recovered; ///< Initial frame has been completely recovered
732
5ec0bdf2
AK
733 /* for frame threading, this is set to 1
734 * after finish_setup() has been called, so we cannot modify
735 * some context properties (which are supposed to stay constant between
736 * slices) anymore */
737 int setup_finished;
2ea89d92
IS
738
739 // Timestamp stuff
be545b8a
DB
740 int sei_buffering_period_present; ///< Buffering period SEI flag
741 int initial_cpb_removal_delay[32]; ///< Initial timestamps for CPBs
76741b0e 742
a4d34e21
AK
743 int enable_er;
744
759001c5
AK
745 AVBufferPool *qscale_table_pool;
746 AVBufferPool *mb_type_pool;
747 AVBufferPool *motion_val_pool;
748 AVBufferPool *ref_index_pool;
136034d8
VG
749
750 /* Motion Estimation */
751 qpel_mc_func (*qpel_put)[16];
752 qpel_mc_func (*qpel_avg)[16];
be545b8a 753} H264Context;
26b4fe82 754
be545b8a 755extern const uint8_t ff_h264_chroma_qp[3][QP_MAX_NUM + 1]; ///< One chroma qp table for each supported bit depth (8, 9, 10).
0becb078 756extern const uint16_t ff_h264_mb_sizes[4];
889fce8e 757
1790a5e9
IS
758/**
759 * Decode SEI
760 */
761int ff_h264_decode_sei(H264Context *h);
762
763/**
764 * Decode SPS
765 */
766int ff_h264_decode_seq_parameter_set(H264Context *h);
767
768/**
fe9a3fbe
JG
769 * compute profile from sps
770 */
771int ff_h264_get_profile(SPS *sps);
772
773/**
1790a5e9
IS
774 * Decode PPS
775 */
776int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length);
777
778/**
49bd8e4b 779 * Decode a network abstraction layer unit.
1790a5e9
IS
780 * @param consumed is the number of bytes used as input
781 * @param length is the length of the array
be545b8a
DB
782 * @param dst_length is the number of decoded bytes FIXME here
783 * or a decode rbsp tailing?
32e543f8 784 * @return decoded bytes, might be src+1 if no escapes
1790a5e9 785 */
3178f4d3 786const uint8_t *ff_h264_decode_nal(H264Context *h, H264SliceContext *sl, const uint8_t *src,
be545b8a 787 int *dst_length, int *consumed, int length);
1790a5e9
IS
788
789/**
be545b8a
DB
790 * Free any data that may have been allocated in the H264 context
791 * like SPS, PPS etc.
15861962 792 */
94ee7da0 793void ff_h264_free_context(H264Context *h);
15861962 794
75dd6938 795/**
49bd8e4b 796 * Reconstruct bitstream slice_type.
75dd6938 797 */
56febc99 798int ff_h264_get_slice_type(const H264SliceContext *sl);
75dd6938 799
903d58f6 800/**
49bd8e4b 801 * Allocate tables.
903d58f6
MN
802 * needs width/height
803 */
804int ff_h264_alloc_tables(H264Context *h);
805
95eb35f3 806int ff_h264_decode_ref_pic_list_reordering(H264Context *h, H264SliceContext *sl);
92c6c2a6 807void ff_h264_fill_mbaff_ref_list(H264Context *h, H264SliceContext *sl);
ea6f00c4
MN
808void ff_h264_remove_all_refs(H264Context *h);
809
810/**
49bd8e4b 811 * Execute the reference picture marking (memory management control operations).
ea6f00c4
MN
812 */
813int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count);
814
bad446e2
RB
815int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb,
816 int first_slice);
ea6f00c4 817
ea382767 818int ff_generate_sliding_window_mmcos(H264Context *h, int first_slice);
733f5990 819
ea6f00c4 820/**
be545b8a
DB
821 * Check if the top & left blocks are available if needed & change the
822 * dc mode so it only uses the available blocks.
903d58f6 823 */
5c4b98de 824int ff_h264_check_intra4x4_pred_mode(const H264Context *h, H264SliceContext *sl);
2bedc0e8
MN
825
826/**
be545b8a
DB
827 * Check if the top & left blocks are available if needed & change the
828 * dc mode so it only uses the available blocks.
2bedc0e8 829 */
5c4b98de 830int ff_h264_check_intra_pred_mode(const H264Context *h, H264SliceContext *sl,
64c81b2c 831 int mode, int is_chroma);
903d58f6 832
6490a0c0 833void ff_h264_hl_decode_mb(const H264Context *h, H264SliceContext *sl);
05e95319 834int ff_h264_decode_extradata(H264Context *h);
94ee7da0
DB
835int ff_h264_decode_init(AVCodecContext *avctx);
836void ff_h264_decode_init_vlc(void);
e1e94902
MN
837
838/**
49bd8e4b 839 * Decode a macroblock
be545b8a 840 * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error
e1e94902 841 */
7505c8df 842int ff_h264_decode_mb_cavlc(const H264Context *h, H264SliceContext *sl);
903d58f6 843
cc51b282 844/**
49bd8e4b 845 * Decode a CABAC coded macroblock
be545b8a 846 * @return 0 if OK, ER_AC_ERROR / ER_DC_ERROR / ER_MV_ERROR on error
cc51b282 847 */
ba7e165b 848int ff_h264_decode_mb_cabac(const H264Context *h, H264SliceContext *sl);
cc51b282 849
ba7e165b 850void ff_h264_init_cabac_states(const H264Context *h, H264SliceContext *sl);
cc51b282 851
f51d0f39
LB
852void h264_init_dequant_tables(H264Context *h);
853
d27b8248
AK
854void ff_h264_direct_dist_scale_factor(const H264Context *const h, H264SliceContext *sl);
855void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *sl);
856void ff_h264_pred_direct_motion(const H264Context *const h, H264SliceContext *sl,
e6287f07 857 int *mb_type);
943f69a6 858
34d4c605 859void ff_h264_filter_mb_fast(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y,
be545b8a
DB
860 uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr,
861 unsigned int linesize, unsigned int uvlinesize);
34d4c605 862void ff_h264_filter_mb(const H264Context *h, H264SliceContext *sl, int mb_x, int mb_y,
be545b8a
DB
863 uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr,
864 unsigned int linesize, unsigned int uvlinesize);
082cf971 865
9c095463
MN
866/**
867 * Reset SEI values at the beginning of the frame.
868 *
869 * @param h H.264 context.
870 */
871void ff_h264_reset_sei(H264Context *h);
872
903d58f6 873/*
be545b8a
DB
874 * o-o o-o
875 * / / /
876 * o-o o-o
877 * ,---'
878 * o-o o-o
879 * / / /
880 * o-o o-o
881 */
5657d140
JGG
882
883/* Scan8 organization:
c90b9442
JGG
884 * 0 1 2 3 4 5 6 7
885 * 0 DY y y y y y
886 * 1 y Y Y Y Y
887 * 2 y Y Y Y Y
888 * 3 y Y Y Y Y
889 * 4 y Y Y Y Y
890 * 5 DU u u u u u
891 * 6 u U U U U
892 * 7 u U U U U
893 * 8 u U U U U
894 * 9 u U U U U
895 * 10 DV v v v v v
896 * 11 v V V V V
897 * 12 v V V V V
898 * 13 v V V V V
899 * 14 v V V V V
5657d140
JGG
900 * DY/DU/DV are for luma/chroma DC.
901 */
902
c90b9442
JGG
903#define LUMA_DC_BLOCK_INDEX 48
904#define CHROMA_DC_BLOCK_INDEX 49
905
be545b8a
DB
906// This table must be here because scan8[constant] must be known at compiletime
907static const uint8_t scan8[16 * 3 + 3] = {
908 4 + 1 * 8, 5 + 1 * 8, 4 + 2 * 8, 5 + 2 * 8,
909 6 + 1 * 8, 7 + 1 * 8, 6 + 2 * 8, 7 + 2 * 8,
910 4 + 3 * 8, 5 + 3 * 8, 4 + 4 * 8, 5 + 4 * 8,
911 6 + 3 * 8, 7 + 3 * 8, 6 + 4 * 8, 7 + 4 * 8,
912 4 + 6 * 8, 5 + 6 * 8, 4 + 7 * 8, 5 + 7 * 8,
913 6 + 6 * 8, 7 + 6 * 8, 6 + 7 * 8, 7 + 7 * 8,
914 4 + 8 * 8, 5 + 8 * 8, 4 + 9 * 8, 5 + 9 * 8,
915 6 + 8 * 8, 7 + 8 * 8, 6 + 9 * 8, 7 + 9 * 8,
916 4 + 11 * 8, 5 + 11 * 8, 4 + 12 * 8, 5 + 12 * 8,
917 6 + 11 * 8, 7 + 11 * 8, 6 + 12 * 8, 7 + 12 * 8,
918 4 + 13 * 8, 5 + 13 * 8, 4 + 14 * 8, 5 + 14 * 8,
919 6 + 13 * 8, 7 + 13 * 8, 6 + 14 * 8, 7 + 14 * 8,
920 0 + 0 * 8, 0 + 5 * 8, 0 + 10 * 8
903d58f6
MN
921};
922
be545b8a
DB
923static av_always_inline uint32_t pack16to32(int a, int b)
924{
903d58f6 925#if HAVE_BIGENDIAN
be545b8a 926 return (b & 0xFFFF) + (a << 16);
903d58f6 927#else
be545b8a 928 return (a & 0xFFFF) + (b << 16);
903d58f6
MN
929#endif
930}
931
be545b8a
DB
932static av_always_inline uint16_t pack8to16(int a, int b)
933{
b5bd0700 934#if HAVE_BIGENDIAN
be545b8a 935 return (b & 0xFF) + (a << 8);
b5bd0700 936#else
be545b8a 937 return (a & 0xFF) + (b << 8);
b5bd0700
MN
938#endif
939}
940
903d58f6 941/**
58c42af7 942 * Get the chroma qp.
082cf971 943 */
460176aa 944static av_always_inline int get_chroma_qp(const H264Context *h, int t, int qscale)
be545b8a 945{
082cf971
MN
946 return h->pps.chroma_qp_table[t][qscale];
947}
948
44a5e7b6 949/**
58c42af7 950 * Get the predicted intra4x4 prediction mode.
e1e94902 951 */
460176aa 952static av_always_inline int pred_intra_mode(const H264Context *h,
7d8154ed 953 H264SliceContext *sl, int n)
be545b8a
DB
954{
955 const int index8 = scan8[n];
7d8154ed
AK
956 const int left = sl->intra4x4_pred_mode_cache[index8 - 1];
957 const int top = sl->intra4x4_pred_mode_cache[index8 - 8];
be545b8a 958 const int min = FFMIN(left, top);
e1e94902 959
6a85dfc8 960 ff_tlog(h->avctx, "mode:%d %d min:%d\n", left, top, min);
e1e94902 961
be545b8a
DB
962 if (min < 0)
963 return DC_PRED;
964 else
965 return min;
e1e94902
MN
966}
967
460176aa 968static av_always_inline void write_back_intra_pred_mode(const H264Context *h,
7d8154ed 969 H264SliceContext *sl)
be545b8a 970{
0edbe6fa 971 int8_t *i4x4 = sl->intra4x4_pred_mode + h->mb2br_xy[sl->mb_xy];
7d8154ed 972 int8_t *i4x4_cache = sl->intra4x4_pred_mode_cache;
3b7ebeb4 973
be545b8a
DB
974 AV_COPY32(i4x4, i4x4_cache + 4 + 8 * 4);
975 i4x4[4] = i4x4_cache[7 + 8 * 3];
976 i4x4[5] = i4x4_cache[7 + 8 * 2];
977 i4x4[6] = i4x4_cache[7 + 8 * 1];
3b7ebeb4 978}
e1e94902 979
460176aa 980static av_always_inline void write_back_non_zero_count(const H264Context *h,
f69574cf 981 H264SliceContext *sl)
be545b8a 982{
0edbe6fa 983 const int mb_xy = sl->mb_xy;
be545b8a 984 uint8_t *nnz = h->non_zero_count[mb_xy];
f69574cf 985 uint8_t *nnz_cache = sl->non_zero_count_cache;
3b7ebeb4 986
be545b8a
DB
987 AV_COPY32(&nnz[ 0], &nnz_cache[4 + 8 * 1]);
988 AV_COPY32(&nnz[ 4], &nnz_cache[4 + 8 * 2]);
989 AV_COPY32(&nnz[ 8], &nnz_cache[4 + 8 * 3]);
990 AV_COPY32(&nnz[12], &nnz_cache[4 + 8 * 4]);
991 AV_COPY32(&nnz[16], &nnz_cache[4 + 8 * 6]);
992 AV_COPY32(&nnz[20], &nnz_cache[4 + 8 * 7]);
993 AV_COPY32(&nnz[32], &nnz_cache[4 + 8 * 11]);
994 AV_COPY32(&nnz[36], &nnz_cache[4 + 8 * 12]);
995
2c541554 996 if (!h->chroma_y_shift) {
be545b8a
DB
997 AV_COPY32(&nnz[24], &nnz_cache[4 + 8 * 8]);
998 AV_COPY32(&nnz[28], &nnz_cache[4 + 8 * 9]);
999 AV_COPY32(&nnz[40], &nnz_cache[4 + 8 * 13]);
1000 AV_COPY32(&nnz[44], &nnz_cache[4 + 8 * 14]);
3b7ebeb4
JGG
1001 }
1002}
1003
460176aa 1004static av_always_inline void write_back_motion_list(const H264Context *h,
e6287f07 1005 H264SliceContext *sl,
be545b8a
DB
1006 int b_stride,
1007 int b_xy, int b8_xy,
1008 int mb_type, int list)
3b7ebeb4 1009{
759001c5 1010 int16_t(*mv_dst)[2] = &h->cur_pic.motion_val[list][b_xy];
e6287f07 1011 int16_t(*mv_src)[2] = &sl->mv_cache[list][scan8[0]];
be545b8a
DB
1012 AV_COPY128(mv_dst + 0 * b_stride, mv_src + 8 * 0);
1013 AV_COPY128(mv_dst + 1 * b_stride, mv_src + 8 * 1);
1014 AV_COPY128(mv_dst + 2 * b_stride, mv_src + 8 * 2);
1015 AV_COPY128(mv_dst + 3 * b_stride, mv_src + 8 * 3);
6d2b6f21 1016 if (CABAC(h)) {
0edbe6fa
AK
1017 uint8_t (*mvd_dst)[2] = &sl->mvd_table[list][FMO ? 8 * sl->mb_xy
1018 : h->mb2br_xy[sl->mb_xy]];
6479c79f 1019 uint8_t(*mvd_src)[2] = &sl->mvd_cache[list][scan8[0]];
be545b8a 1020 if (IS_SKIP(mb_type)) {
3b7ebeb4 1021 AV_ZERO128(mvd_dst);
be545b8a
DB
1022 } else {
1023 AV_COPY64(mvd_dst, mvd_src + 8 * 3);
1024 AV_COPY16(mvd_dst + 3 + 3, mvd_src + 3 + 8 * 0);
1025 AV_COPY16(mvd_dst + 3 + 2, mvd_src + 3 + 8 * 1);
1026 AV_COPY16(mvd_dst + 3 + 1, mvd_src + 3 + 8 * 2);
3b7ebeb4
JGG
1027 }
1028 }
1029
1030 {
759001c5 1031 int8_t *ref_index = &h->cur_pic.ref_index[list][b8_xy];
e6287f07 1032 int8_t *ref_cache = sl->ref_cache[list];
be545b8a
DB
1033 ref_index[0 + 0 * 2] = ref_cache[scan8[0]];
1034 ref_index[1 + 0 * 2] = ref_cache[scan8[4]];
1035 ref_index[0 + 1 * 2] = ref_cache[scan8[8]];
1036 ref_index[1 + 1 * 2] = ref_cache[scan8[12]];
c90b9442 1037 }
e1e94902
MN
1038}
1039
460176aa 1040static av_always_inline void write_back_motion(const H264Context *h,
e6287f07
AK
1041 H264SliceContext *sl,
1042 int mb_type)
be545b8a 1043{
be545b8a 1044 const int b_stride = h->b_stride;
d4d9068c 1045 const int b_xy = 4 * sl->mb_x + 4 * sl->mb_y * h->b_stride; // try mb2b(8)_xy
0edbe6fa 1046 const int b8_xy = 4 * sl->mb_xy;
e1e94902 1047
be545b8a 1048 if (USES_LIST(mb_type, 0)) {
e6287f07 1049 write_back_motion_list(h, sl, b_stride, b_xy, b8_xy, mb_type, 0);
be545b8a 1050 } else {
759001c5 1051 fill_rectangle(&h->cur_pic.ref_index[0][b8_xy],
657ccb5a 1052 2, 2, 2, (uint8_t)LIST_NOT_USED, 1);
3b7ebeb4 1053 }
be545b8a 1054 if (USES_LIST(mb_type, 1))
e6287f07 1055 write_back_motion_list(h, sl, b_stride, b_xy, b8_xy, mb_type, 1);
e1e94902 1056
56febc99 1057 if (sl->slice_type_nos == AV_PICTURE_TYPE_B && CABAC(h)) {
be545b8a 1058 if (IS_8X8(mb_type)) {
0edbe6fa 1059 uint8_t *direct_table = &h->direct_table[4 * sl->mb_xy];
ed451a08
AK
1060 direct_table[1] = sl->sub_mb_type[1] >> 1;
1061 direct_table[2] = sl->sub_mb_type[2] >> 1;
1062 direct_table[3] = sl->sub_mb_type[3] >> 1;
e1e94902
MN
1063 }
1064 }
1065}
1066
460176aa 1067static av_always_inline int get_dct8x8_allowed(const H264Context *h, H264SliceContext *sl)
be545b8a
DB
1068{
1069 if (h->sps.direct_8x8_inference_flag)
ed451a08 1070 return !(AV_RN64A(sl->sub_mb_type) &
be545b8a
DB
1071 ((MB_TYPE_16x8 | MB_TYPE_8x16 | MB_TYPE_8x8) *
1072 0x0001000100010001ULL));
e1e94902 1073 else
ed451a08 1074 return !(AV_RN64A(sl->sub_mb_type) &
be545b8a
DB
1075 ((MB_TYPE_16x8 | MB_TYPE_8x16 | MB_TYPE_8x8 | MB_TYPE_DIRECT2) *
1076 0x0001000100010001ULL));
e1e94902
MN
1077}
1078
95eb35f3 1079int ff_h264_field_end(H264Context *h, H264SliceContext *sl, int in_setup);
f51d0f39
LB
1080
1081int ff_h264_ref_picture(H264Context *h, H264Picture *dst, H264Picture *src);
1082void ff_h264_unref_picture(H264Context *h, H264Picture *pic);
1083
582683b6 1084int ff_h264_slice_context_init(H264Context *h, H264SliceContext *sl);
f51d0f39 1085
5c4b98de 1086void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl, int y, int height);
3f1a7ceb 1087int ff_init_poc(H264Context *h, int pic_field_poc[2], int *pic_poc);
92c6c2a6 1088int ff_pred_weight_table(H264Context *h, H264SliceContext *sl);
56febc99 1089int ff_set_ref_count(H264Context *h, H264SliceContext *sl);
2c541554 1090
51d8725a 1091int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl);
f51d0f39
LB
1092int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count);
1093int ff_h264_update_thread_context(AVCodecContext *dst,
1094 const AVCodecContext *src);
1095
1096void ff_h264_flush_change(H264Context *h);
1097
11f024ef 1098void ff_h264_free_tables(H264Context *h);
f51d0f39 1099
98790382 1100#endif /* AVCODEC_H264_H */