Set top & left types for deblock in fill_caches().
[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 *
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
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20 */
21
22/**
bad5537e 23 * @file libavcodec/h264.h
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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
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30
31#include "dsputil.h"
32#include "cabac.h"
33#include "mpegvideo.h"
c92a30bb 34#include "h264pred.h"
e1e94902 35#include "rectangle.h"
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36
37#define interlaced_dct interlaced_dct_is_a_bad_name
90b5b51e 38#define mb_intra mb_intra_is_not_initialized_see_mb_type
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39
40#define LUMA_DC_BLOCK_INDEX 25
41#define CHROMA_DC_BLOCK_INDEX 26
42
43#define CHROMA_DC_COEFF_TOKEN_VLC_BITS 8
44#define COEFF_TOKEN_VLC_BITS 8
45#define TOTAL_ZEROS_VLC_BITS 9
46#define CHROMA_DC_TOTAL_ZEROS_VLC_BITS 3
47#define RUN_VLC_BITS 3
48#define RUN7_VLC_BITS 6
49
50#define MAX_SPS_COUNT 32
51#define MAX_PPS_COUNT 256
52
53#define MAX_MMCO_COUNT 66
54
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55#define MAX_DELAYED_PIC_COUNT 16
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 ALLOW_NOCHROMA
62
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63/**
64 * The maximum number of slices supported by the decoder.
65 * must be a power of 2
66 */
67#define MAX_SLICES 16
68
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69#ifdef ALLOW_INTERLACE
70#define MB_MBAFF h->mb_mbaff
71#define MB_FIELD h->mb_field_decoding_flag
72#define FRAME_MBAFF h->mb_aff_frame
d6c52130 73#define FIELD_PICTURE (s->picture_structure != PICT_FRAME)
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74#else
75#define MB_MBAFF 0
76#define MB_FIELD 0
77#define FRAME_MBAFF 0
bbb3edb8 78#define FIELD_PICTURE 0
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79#undef IS_INTERLACED
80#define IS_INTERLACED(mb_type) 0
81#endif
f3e53d9f 82#define FIELD_OR_MBAFF_PICTURE (FRAME_MBAFF || FIELD_PICTURE)
26b4fe82 83
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84#ifdef ALLOW_NOCHROMA
85#define CHROMA h->sps.chroma_format_idc
86#else
87#define CHROMA 1
88#endif
89
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90#ifndef CABAC
91#define CABAC h->pps.cabac
92#endif
93
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94#define EXTENDED_SAR 255
95
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96#define MB_TYPE_REF0 MB_TYPE_ACPRED //dirty but it fits in 16 bit
97#define MB_TYPE_8x8DCT 0x01000000
98#define IS_REF0(a) ((a) & MB_TYPE_REF0)
99#define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT)
100
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101/**
102 * Value of Picture.reference when Picture is not a reference picture, but
103 * is held for delayed output.
104 */
105#define DELAYED_PIC_REF 4
106
107
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108/* NAL unit types */
109enum {
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110 NAL_SLICE=1,
111 NAL_DPA,
112 NAL_DPB,
113 NAL_DPC,
114 NAL_IDR_SLICE,
115 NAL_SEI,
116 NAL_SPS,
117 NAL_PPS,
118 NAL_AUD,
119 NAL_END_SEQUENCE,
120 NAL_END_STREAM,
121 NAL_FILLER_DATA,
122 NAL_SPS_EXT,
123 NAL_AUXILIARY_SLICE=19
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124};
125
26b4fe82 126/**
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127 * SEI message types
128 */
129typedef enum {
2ea89d92 130 SEI_BUFFERING_PERIOD = 0, ///< buffering period (H.264, D.1.1)
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131 SEI_TYPE_PIC_TIMING = 1, ///< picture timing
132 SEI_TYPE_USER_DATA_UNREGISTERED = 5, ///< unregistered user data
133 SEI_TYPE_RECOVERY_POINT = 6 ///< recovery point (frame # to decoder sync)
134} SEI_Type;
135
136/**
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137 * pic_struct in picture timing SEI message
138 */
139typedef enum {
140 SEI_PIC_STRUCT_FRAME = 0, ///< 0: %frame
141 SEI_PIC_STRUCT_TOP_FIELD = 1, ///< 1: top field
142 SEI_PIC_STRUCT_BOTTOM_FIELD = 2, ///< 2: bottom field
143 SEI_PIC_STRUCT_TOP_BOTTOM = 3, ///< 3: top field, bottom field, in that order
144 SEI_PIC_STRUCT_BOTTOM_TOP = 4, ///< 4: bottom field, top field, in that order
145 SEI_PIC_STRUCT_TOP_BOTTOM_TOP = 5, ///< 5: top field, bottom field, top field repeated, in that order
146 SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM = 6, ///< 6: bottom field, top field, bottom field repeated, in that order
147 SEI_PIC_STRUCT_FRAME_DOUBLING = 7, ///< 7: %frame doubling
148 SEI_PIC_STRUCT_FRAME_TRIPLING = 8 ///< 8: %frame tripling
149} SEI_PicStructType;
150
151/**
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152 * Sequence parameter set
153 */
154typedef struct SPS{
155
156 int profile_idc;
157 int level_idc;
0af6967e 158 int chroma_format_idc;
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159 int transform_bypass; ///< qpprime_y_zero_transform_bypass_flag
160 int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4
161 int poc_type; ///< pic_order_cnt_type
162 int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4
163 int delta_pic_order_always_zero_flag;
164 int offset_for_non_ref_pic;
165 int offset_for_top_to_bottom_field;
166 int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle
167 int ref_frame_count; ///< num_ref_frames
168 int gaps_in_frame_num_allowed_flag;
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169 int mb_width; ///< pic_width_in_mbs_minus1 + 1
170 int mb_height; ///< pic_height_in_map_units_minus1 + 1
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171 int frame_mbs_only_flag;
172 int mb_aff; ///<mb_adaptive_frame_field_flag
173 int direct_8x8_inference_flag;
174 int crop; ///< frame_cropping_flag
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175 unsigned int crop_left; ///< frame_cropping_rect_left_offset
176 unsigned int crop_right; ///< frame_cropping_rect_right_offset
177 unsigned int crop_top; ///< frame_cropping_rect_top_offset
178 unsigned int crop_bottom; ///< frame_cropping_rect_bottom_offset
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179 int vui_parameters_present_flag;
180 AVRational sar;
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181 int video_signal_type_present_flag;
182 int full_range;
183 int colour_description_present_flag;
184 enum AVColorPrimaries color_primaries;
185 enum AVColorTransferCharacteristic color_trc;
186 enum AVColorSpace colorspace;
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187 int timing_info_present_flag;
188 uint32_t num_units_in_tick;
189 uint32_t time_scale;
190 int fixed_frame_rate_flag;
191 short offset_for_ref_frame[256]; //FIXME dyn aloc?
192 int bitstream_restriction_flag;
193 int num_reorder_frames;
194 int scaling_matrix_present;
195 uint8_t scaling_matrix4[6][16];
196 uint8_t scaling_matrix8[2][64];
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197 int nal_hrd_parameters_present_flag;
198 int vcl_hrd_parameters_present_flag;
199 int pic_struct_present_flag;
200 int time_offset_length;
24a414e0 201 int cpb_cnt; ///< See H.264 E.1.2
82e38c29 202 int initial_cpb_removal_delay_length; ///< initial_cpb_removal_delay_length_minus1 +1
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203 int cpb_removal_delay_length; ///< cpb_removal_delay_length_minus1 + 1
204 int dpb_output_delay_length; ///< dpb_output_delay_length_minus1 + 1
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205 int bit_depth_luma; ///< bit_depth_luma_minus8 + 8
206 int bit_depth_chroma; ///< bit_depth_chroma_minus8 + 8
207 int residual_color_transform_flag; ///< residual_colour_transform_flag
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208}SPS;
209
210/**
211 * Picture parameter set
212 */
213typedef struct PPS{
214 unsigned int sps_id;
215 int cabac; ///< entropy_coding_mode_flag
216 int pic_order_present; ///< pic_order_present_flag
217 int slice_group_count; ///< num_slice_groups_minus1 + 1
218 int mb_slice_group_map_type;
219 unsigned int ref_count[2]; ///< num_ref_idx_l0/1_active_minus1 + 1
220 int weighted_pred; ///< weighted_pred_flag
221 int weighted_bipred_idc;
222 int init_qp; ///< pic_init_qp_minus26 + 26
223 int init_qs; ///< pic_init_qs_minus26 + 26
4691a77d 224 int chroma_qp_index_offset[2];
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225 int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
226 int constrained_intra_pred; ///< constrained_intra_pred_flag
227 int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag
228 int transform_8x8_mode; ///< transform_8x8_mode_flag
229 uint8_t scaling_matrix4[6][16];
230 uint8_t scaling_matrix8[2][64];
5a78bfbd 231 uint8_t chroma_qp_table[2][64]; ///< pre-scaled (with chroma_qp_index_offset) version of qp_table
4691a77d 232 int chroma_qp_diff;
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233}PPS;
234
235/**
236 * Memory management control operation opcode.
237 */
238typedef enum MMCOOpcode{
239 MMCO_END=0,
240 MMCO_SHORT2UNUSED,
241 MMCO_LONG2UNUSED,
242 MMCO_SHORT2LONG,
243 MMCO_SET_MAX_LONG,
244 MMCO_RESET,
245 MMCO_LONG,
246} MMCOOpcode;
247
248/**
249 * Memory management control operation.
250 */
251typedef struct MMCO{
252 MMCOOpcode opcode;
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253 int short_pic_num; ///< pic_num without wrapping (pic_num & max_pic_num)
254 int long_arg; ///< index, pic_num, or num long refs depending on opcode
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255} MMCO;
256
257/**
258 * H264Context
259 */
260typedef struct H264Context{
261 MpegEncContext s;
262 int nal_ref_idc;
263 int nal_unit_type;
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264 uint8_t *rbsp_buffer[2];
265 unsigned int rbsp_buffer_size[2];
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266
267 /**
268 * Used to parse AVC variant of h264
269 */
270 int is_avc; ///< this flag is != 0 if codec is avc1
271 int got_avcC; ///< flag used to parse avcC data only once
272 int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
273
4691a77d 274 int chroma_qp[2]; //QPc
26b4fe82 275
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276 int qp_thresh; ///< QP threshold to skip loopfilter
277
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278 int prev_mb_skipped;
279 int next_mb_skipped;
280
281 //prediction stuff
282 int chroma_pred_mode;
283 int intra16x16_pred_mode;
284
285 int top_mb_xy;
286 int left_mb_xy[2];
287
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288 int top_type;
289 int left_type[2];
290
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291 int8_t intra4x4_pred_mode_cache[5*8];
292 int8_t (*intra4x4_pred_mode)[8];
c92a30bb 293 H264PredContext hpc;
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294 unsigned int topleft_samples_available;
295 unsigned int top_samples_available;
296 unsigned int topright_samples_available;
297 unsigned int left_samples_available;
298 uint8_t (*top_borders[2])[16+2*8];
299 uint8_t left_border[2*(17+2*9)];
300
301 /**
302 * non zero coeff count cache.
303 * is 64 if not available.
304 */
c6727809 305 DECLARE_ALIGNED_8(uint8_t, non_zero_count_cache)[6*8];
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306
307 /*
308 .UU.YYYY
309 .UU.YYYY
310 .vv.YYYY
311 .VV.YYYY
312 */
c988f975 313 uint8_t (*non_zero_count)[32];
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314
315 /**
316 * Motion vector cache.
317 */
0b69d625 318 DECLARE_ALIGNED_16(int16_t, mv_cache)[2][5*8][2];
c6727809 319 DECLARE_ALIGNED_8(int8_t, ref_cache)[2][5*8];
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320#define LIST_NOT_USED -1 //FIXME rename?
321#define PART_NOT_AVAILABLE -2
322
323 /**
324 * is 1 if the specific list MV&references are set to 0,0,-2.
325 */
326 int mv_cache_clean[2];
327
328 /**
329 * number of neighbors (top and/or left) that used 8x8 dct
330 */
331 int neighbor_transform_size;
332
333 /**
334 * block_offset[ 0..23] for frame macroblocks
335 * block_offset[24..47] for field macroblocks
336 */
337 int block_offset[2*(16+8)];
338
339 uint32_t *mb2b_xy; //FIXME are these 4 a good idea?
340 uint32_t *mb2b8_xy;
341 int b_stride; //FIXME use s->b4_stride
342 int b8_stride;
343
344 int mb_linesize; ///< may be equal to s->linesize or s->linesize*2, for mbaff
345 int mb_uvlinesize;
346
347 int emu_edge_width;
348 int emu_edge_height;
349
350 int halfpel_flag;
351 int thirdpel_flag;
352
353 int unknown_svq3_flag;
354 int next_slice_index;
355
7978debd 356 SPS *sps_buffers[MAX_SPS_COUNT];
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357 SPS sps; ///< current sps
358
7978debd 359 PPS *pps_buffers[MAX_PPS_COUNT];
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360 /**
361 * current pps
362 */
363 PPS pps; //FIXME move to Picture perhaps? (->no) do we need that?
364
365 uint32_t dequant4_buffer[6][52][16];
366 uint32_t dequant8_buffer[2][52][64];
367 uint32_t (*dequant4_coeff[6])[16];
368 uint32_t (*dequant8_coeff[2])[64];
369 int dequant_coeff_pps; ///< reinit tables when pps changes
370
371 int slice_num;
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372 uint16_t *slice_table_base;
373 uint16_t *slice_table; ///< slice_table_base + 2*mb_stride + 1
26b4fe82 374 int slice_type;
e3e6f18f 375 int slice_type_nos; ///< S free slice type (SI/SP are remapped to I/P)
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376 int slice_type_fixed;
377
378 //interlacing specific flags
379 int mb_aff_frame;
380 int mb_field_decoding_flag;
381 int mb_mbaff; ///< mb_aff_frame && mb_field_decoding_flag
382
c6727809 383 DECLARE_ALIGNED_8(uint16_t, sub_mb_type)[4];
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384
385 //POC stuff
386 int poc_lsb;
387 int poc_msb;
388 int delta_poc_bottom;
389 int delta_poc[2];
390 int frame_num;
391 int prev_poc_msb; ///< poc_msb of the last reference pic for POC type 0
392 int prev_poc_lsb; ///< poc_lsb of the last reference pic for POC type 0
393 int frame_num_offset; ///< for POC type 2
394 int prev_frame_num_offset; ///< for POC type 2
395 int prev_frame_num; ///< frame_num of the last pic for POC type 1/2
396
397 /**
f57e2af6 398 * frame_num for frames or 2*frame_num+1 for field pics.
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399 */
400 int curr_pic_num;
401
402 /**
403 * max_frame_num or 2*max_frame_num for field pics.
404 */
405 int max_pic_num;
406
407 //Weighted pred stuff
408 int use_weight;
409 int use_weight_chroma;
410 int luma_log2_weight_denom;
411 int chroma_log2_weight_denom;
412 int luma_weight[2][48];
413 int luma_offset[2][48];
414 int chroma_weight[2][48][2];
415 int chroma_offset[2][48][2];
416 int implicit_weight[48][48];
417
418 //deblock
419 int deblocking_filter; ///< disable_deblocking_filter_idc with 1<->0
420 int slice_alpha_c0_offset;
421 int slice_beta_offset;
422
423 int redundant_pic_count;
424
425 int direct_spatial_mv_pred;
426 int dist_scale_factor[16];
8b1fd554 427 int dist_scale_factor_field[2][32];
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428 int map_col_to_list0[2][16+32];
429 int map_col_to_list0_field[2][2][16+32];
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430
431 /**
432 * num_ref_idx_l0/1_active_minus1 + 1
433 */
434 unsigned int ref_count[2]; ///< counts frames or fields, depending on current mb mode
435 unsigned int list_count;
c988f975 436 uint8_t *list_counts; ///< Array of list_count per MB specifying the slice type
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437 Picture *short_ref[32];
438 Picture *long_ref[32];
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439 Picture default_ref_list[2][32]; ///< base reference list for all slices of a coded picture
440 Picture ref_list[2][48]; /**< 0..15: frame refs, 16..47: mbaff field refs.
441 Reordered version of default_ref_list
442 according to picture reordering in slice header */
b735aeea 443 int ref2frm[MAX_SLICES][2][64]; ///< reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
64b9d48f 444 Picture *delayed_pic[MAX_DELAYED_PIC_COUNT+2]; //FIXME size?
df8a7dff 445 int outputed_poc;
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446
447 /**
448 * memory management control operations buffer.
449 */
450 MMCO mmco[MAX_MMCO_COUNT];
451 int mmco_index;
452
453 int long_ref_count; ///< number of actual long term references
454 int short_ref_count; ///< number of actual short term references
455
456 //data partitioning
457 GetBitContext intra_gb;
458 GetBitContext inter_gb;
459 GetBitContext *intra_gb_ptr;
460 GetBitContext *inter_gb_ptr;
461
c6727809 462 DECLARE_ALIGNED_16(DCTELEM, mb)[16*24];
2cab6401 463 DCTELEM mb_padding[256]; ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not too large or ensure that there is some unused stuff after mb
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464
465 /**
466 * Cabac
467 */
468 CABACContext cabac;
469 uint8_t cabac_state[460];
470 int cabac_init_idc;
471
472 /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0,1,2), 0x0? luma_cbp */
473 uint16_t *cbp_table;
474 int cbp;
475 int top_cbp;
476 int left_cbp;
477 /* chroma_pred_mode for i4x4 or i16x16, else 0 */
478 uint8_t *chroma_pred_mode_table;
479 int last_qscale_diff;
480 int16_t (*mvd_table[2])[2];
0b69d625 481 DECLARE_ALIGNED_16(int16_t, mvd_cache)[2][5*8][2];
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482 uint8_t *direct_table;
483 uint8_t direct_cache[5*8];
484
485 uint8_t zigzag_scan[16];
486 uint8_t zigzag_scan8x8[64];
487 uint8_t zigzag_scan8x8_cavlc[64];
488 uint8_t field_scan[16];
489 uint8_t field_scan8x8[64];
490 uint8_t field_scan8x8_cavlc[64];
491 const uint8_t *zigzag_scan_q0;
492 const uint8_t *zigzag_scan8x8_q0;
493 const uint8_t *zigzag_scan8x8_cavlc_q0;
494 const uint8_t *field_scan_q0;
495 const uint8_t *field_scan8x8_q0;
496 const uint8_t *field_scan8x8_cavlc_q0;
497
498 int x264_build;
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499
500 /**
501 * @defgroup multithreading Members for slice based multithreading
502 * @{
503 */
504 struct H264Context *thread_context[MAX_THREADS];
505
506 /**
507 * current slice number, used to initalize slice_num of each thread/context
508 */
509 int current_slice;
510
511 /**
512 * Max number of threads / contexts.
513 * This is equal to AVCodecContext.thread_count unless
514 * multithreaded decoding is impossible, in which case it is
515 * reduced to 1.
516 */
517 int max_contexts;
518
519 /**
520 * 1 if the single thread fallback warning has already been
521 * displayed, 0 otherwise.
522 */
523 int single_decode_warning;
524
525 int last_slice_type;
526 /** @} */
527
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528 int mb_xy;
529
1fdcdf8d 530 uint32_t svq3_watermark_key;
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531
532 /**
533 * pic_struct in picture timing SEI message
534 */
535 SEI_PicStructType sei_pic_struct;
89db0bae 536
37a558fe 537 /**
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538 * Complement sei_pic_struct
539 * SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames.
540 * However, soft telecined frames may have these values.
541 * This is used in an attempt to flag soft telecine progressive.
542 */
543 int prev_interlaced_frame;
544
545 /**
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546 * Bit set of clock types for fields/frames in picture timing SEI message.
547 * For each found ct_type, appropriate bit is set (e.g., bit 1 for
548 * interlaced).
549 */
550 int sei_ct_type;
551
552 /**
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553 * dpb_output_delay in picture timing SEI message, see H.264 C.2.2
554 */
555 int sei_dpb_output_delay;
556
557 /**
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558 * cpb_removal_delay in picture timing SEI message, see H.264 C.1.2
559 */
560 int sei_cpb_removal_delay;
561
562 /**
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563 * recovery_frame_cnt from SEI message
564 *
565 * Set to -1 if no recovery point SEI message found or to number of frames
566 * before playback synchronizes. Frames having recovery point are key
567 * frames.
568 */
569 int sei_recovery_frame_cnt;
570
89db0bae 571 int is_complex;
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572
573 int luma_weight_flag[2]; ///< 7.4.3.2 luma_weight_lX_flag
574 int chroma_weight_flag[2]; ///< 7.4.3.2 chroma_weight_lX_flag
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575
576 // Timestamp stuff
577 int sei_buffering_period_present; ///< Buffering period SEI flag
578 int initial_cpb_removal_delay[32]; ///< Initial timestamps for CPBs
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579}H264Context;
580
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581
582extern const uint8_t ff_h264_chroma_qp[52];
583
584
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585/**
586 * Decode SEI
587 */
588int ff_h264_decode_sei(H264Context *h);
589
590/**
591 * Decode SPS
592 */
593int ff_h264_decode_seq_parameter_set(H264Context *h);
594
595/**
596 * Decode PPS
597 */
598int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length);
599
600/**
601 * Decodes a network abstraction layer unit.
602 * @param consumed is the number of bytes used as input
603 * @param length is the length of the array
604 * @param dst_length is the number of decoded bytes FIXME here or a decode rbsp tailing?
605 * @returns decoded bytes, might be src+1 if no escapes
606 */
607const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length);
608
609/**
610 * identifies the exact end of the bitstream
611 * @return the length of the trailing, or 0 if damaged
612 */
613int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src);
614
15861962
RD
615/**
616 * frees any data that may have been allocated in the H264 context like SPS, PPS etc.
617 */
cbf1eae9 618av_cold void ff_h264_free_context(H264Context *h);
15861962 619
75dd6938
LA
620/**
621 * reconstructs bitstream slice_type.
622 */
0dc343d4 623int ff_h264_get_slice_type(const H264Context *h);
75dd6938 624
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625/**
626 * allocates tables.
627 * needs width/height
628 */
629int ff_h264_alloc_tables(H264Context *h);
630
631/**
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632 * fills the default_ref_list.
633 */
634int ff_h264_fill_default_ref_list(H264Context *h);
635
636int ff_h264_decode_ref_pic_list_reordering(H264Context *h);
637void ff_h264_fill_mbaff_ref_list(H264Context *h);
638void ff_h264_remove_all_refs(H264Context *h);
639
640/**
641 * Executes the reference picture marking (memory management control operations).
642 */
643int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count);
644
645int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb);
646
647
648/**
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649 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
650 */
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651int ff_h264_check_intra4x4_pred_mode(H264Context *h);
652
653/**
654 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
655 */
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656int ff_h264_check_intra_pred_mode(H264Context *h, int mode);
657
658void ff_h264_write_back_intra_pred_mode(H264Context *h);
659void ff_h264_hl_decode_mb(H264Context *h);
660int ff_h264_frame_start(H264Context *h);
661av_cold int ff_h264_decode_init(AVCodecContext *avctx);
662av_cold int ff_h264_decode_end(AVCodecContext *avctx);
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663av_cold void ff_h264_decode_init_vlc(void);
664
665/**
666 * decodes a macroblock
667 * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
668 */
669int ff_h264_decode_mb_cavlc(H264Context *h);
903d58f6 670
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671/**
672 * decodes a CABAC coded macroblock
673 * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
674 */
675int ff_h264_decode_mb_cabac(H264Context *h);
676
677void ff_h264_init_cabac_states(H264Context *h);
678
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679void ff_h264_direct_dist_scale_factor(H264Context * const h);
680void ff_h264_direct_ref_list_init(H264Context * const h);
681void ff_h264_pred_direct_motion(H264Context * const h, int *mb_type);
682
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683void ff_h264_filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
684void ff_h264_filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
685
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MN
686/**
687 * Reset SEI values at the beginning of the frame.
688 *
689 * @param h H.264 context.
690 */
691void ff_h264_reset_sei(H264Context *h);
692
693
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694/*
695o-o o-o
696 / / /
697o-o o-o
698 ,---'
699o-o o-o
700 / / /
701o-o o-o
702*/
703//This table must be here because scan8[constant] must be known at compiletime
704static const uint8_t scan8[16 + 2*4]={
705 4+1*8, 5+1*8, 4+2*8, 5+2*8,
706 6+1*8, 7+1*8, 6+2*8, 7+2*8,
707 4+3*8, 5+3*8, 4+4*8, 5+4*8,
708 6+3*8, 7+3*8, 6+4*8, 7+4*8,
709 1+1*8, 2+1*8,
710 1+2*8, 2+2*8,
711 1+4*8, 2+4*8,
712 1+5*8, 2+5*8,
713};
714
715static av_always_inline uint32_t pack16to32(int a, int b){
716#if HAVE_BIGENDIAN
717 return (b&0xFFFF) + (a<<16);
718#else
719 return (a&0xFFFF) + (b<<16);
720#endif
721}
722
723/**
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724 * gets the chroma qp.
725 */
726static inline int get_chroma_qp(H264Context *h, int t, int qscale){
727 return h->pps.chroma_qp_table[t][qscale];
728}
729
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730static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my);
731
44a5e7b6 732static av_always_inline int fill_caches(H264Context *h, int mb_type, int for_deblock){
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733 MpegEncContext * const s = &h->s;
734 const int mb_xy= h->mb_xy;
735 int topleft_xy, top_xy, topright_xy, left_xy[2];
736 int topleft_type, top_type, topright_type, left_type[2];
737 const uint8_t * left_block;
738 int topleft_partition= -1;
739 int i;
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740 static const uint8_t left_block_options[4][16]={
741 {0,1,2,3,7,10,8,11,7+0*8, 7+1*8, 7+2*8, 7+3*8, 2+0*8, 2+3*8, 2+1*8, 2+2*8},
742 {2,2,3,3,8,11,8,11,7+2*8, 7+2*8, 7+3*8, 7+3*8, 2+1*8, 2+2*8, 2+1*8, 2+2*8},
743 {0,0,1,1,7,10,7,10,7+0*8, 7+0*8, 7+1*8, 7+1*8, 2+0*8, 2+3*8, 2+0*8, 2+3*8},
744 {0,2,0,2,7,10,7,10,7+0*8, 7+2*8, 7+0*8, 7+2*8, 2+0*8, 2+3*8, 2+0*8, 2+3*8}
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745 };
746
806ac67b 747 top_xy = mb_xy - (s->mb_stride << MB_FIELD);
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748
749 //FIXME deblocking could skip the intra and nnz parts.
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750// if(for_deblock && (h->slice_num == 1 || h->slice_table[mb_xy] == h->slice_table[top_xy]) && !FRAME_MBAFF)
751// return;
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752
753 /* Wow, what a mess, why didn't they simplify the interlacing & intra
754 * stuff, I can't imagine that these complex rules are worth it. */
755
756 topleft_xy = top_xy - 1;
757 topright_xy= top_xy + 1;
758 left_xy[1] = left_xy[0] = mb_xy-1;
759 left_block = left_block_options[0];
760 if(FRAME_MBAFF){
806ac67b 761 const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]);
e1e94902 762 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
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763 if(s->mb_y&1){
764 if (left_mb_field_flag != curr_mb_field_flag) {
765 left_xy[1] = left_xy[0] = mb_xy - s->mb_stride - 1;
766 if (curr_mb_field_flag) {
767 left_xy[1] += s->mb_stride;
768 left_block = left_block_options[3];
769 } else {
770 topleft_xy += s->mb_stride;
771 // take top left mv from the middle of the mb, as opposed to all other modes which use the bottom right partition
772 topleft_partition = 0;
773 left_block = left_block_options[1];
774 }
775 }
776 }else{
777 if(curr_mb_field_flag){
778 topleft_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy - 1]>>7)&1)-1);
779 topright_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy + 1]>>7)&1)-1);
780 top_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy ]>>7)&1)-1);
781 }
782 if (left_mb_field_flag != curr_mb_field_flag) {
783 left_xy[1] = left_xy[0] = mb_xy - 1;
784 if (curr_mb_field_flag) {
785 left_xy[1] += s->mb_stride;
786 left_block = left_block_options[3];
787 } else {
788 left_block = left_block_options[2];
789 }
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790 }
791 }
792 }
793
794 h->top_mb_xy = top_xy;
795 h->left_mb_xy[0] = left_xy[0];
796 h->left_mb_xy[1] = left_xy[1];
797 if(for_deblock){
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MN
798
799 //for sufficiently low qp, filtering wouldn't do anything
800 //this is a conservative estimate: could also check beta_offset and more accurate chroma_qp
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801 int qp_thresh = h->qp_thresh; //FIXME strictly we should store qp_thresh for each mb of a slice
802 int qp = s->current_picture.qscale_table[mb_xy];
803 if(qp <= qp_thresh
804 && (left_xy[0]<0 || ((qp + s->current_picture.qscale_table[left_xy[0]] + 1)>>1) <= qp_thresh)
66472bcd 805 && (top_xy < 0 || ((qp + s->current_picture.qscale_table[top_xy ] + 1)>>1) <= qp_thresh)){
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MN
806 if(!FRAME_MBAFF)
807 return 1;
808 if( (left_xy[0]< 0 || ((qp + s->current_picture.qscale_table[left_xy[0]+s->mb_stride] + 1)>>1) <= qp_thresh)
809 && (top_xy < s->mb_stride || ((qp + s->current_picture.qscale_table[top_xy -s->mb_stride] + 1)>>1) <= qp_thresh))
810 return 1;
7a93858a 811 }
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MN
812
813 if(h->deblocking_filter == 2){
814 h->top_type = top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
815 h->left_type[0]= left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
816 h->left_type[1]= left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
817 }else{
818 h->top_type = top_type = h->slice_table[top_xy ] < 0xFFFF ? s->current_picture.mb_type[top_xy] : 0;
819 h->left_type[0]= left_type[0] = h->slice_table[left_xy[0] ] < 0xFFFF ? s->current_picture.mb_type[left_xy[0]] : 0;
820 h->left_type[1]= left_type[1] = h->slice_table[left_xy[1] ] < 0xFFFF ? s->current_picture.mb_type[left_xy[1]] : 0;
821 }
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MN
822 if(IS_INTRA(mb_type))
823 return 0;
44a5e7b6 824
0b69d625
AS
825 AV_COPY64(&h->non_zero_count_cache[0+8*1], &h->non_zero_count[mb_xy][ 0]);
826 AV_COPY64(&h->non_zero_count_cache[0+8*2], &h->non_zero_count[mb_xy][ 8]);
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MN
827 *((uint32_t*)&h->non_zero_count_cache[0+8*5])= *((uint32_t*)&h->non_zero_count[mb_xy][16]);
828 *((uint32_t*)&h->non_zero_count_cache[4+8*3])= *((uint32_t*)&h->non_zero_count[mb_xy][20]);
0b69d625 829 AV_COPY64(&h->non_zero_count_cache[0+8*4], &h->non_zero_count[mb_xy][24]);
b6303e6d 830
a7d7cdaa
MN
831 h->cbp= h->cbp_table[mb_xy];
832
01c51168 833 {
e1e94902
MN
834 int list;
835 for(list=0; list<h->list_count; list++){
c988f975 836 int8_t *ref;
0b69d625
AS
837 int y, b_stride;
838 int16_t (*mv_dst)[2];
839 int16_t (*mv_src)[2];
840
c988f975
MN
841 if(!USES_LIST(mb_type, list)){
842 fill_rectangle( h->mv_cache[list][scan8[0]], 4, 4, 8, pack16to32(0,0), 4);
e1e94902 843 *(uint32_t*)&h->ref_cache[list][scan8[ 0]] =
c988f975 844 *(uint32_t*)&h->ref_cache[list][scan8[ 2]] =
e1e94902 845 *(uint32_t*)&h->ref_cache[list][scan8[ 8]] =
c988f975
MN
846 *(uint32_t*)&h->ref_cache[list][scan8[10]] = ((LIST_NOT_USED)&0xFF)*0x01010101;
847 continue;
e1e94902 848 }
c988f975
MN
849
850 ref = &s->current_picture.ref_index[list][h->mb2b8_xy[mb_xy]];
01c51168 851 {
6d7e6b26
MN
852 int (*ref2frm)[64] = h->ref2frm[ h->slice_num&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
853 *(uint32_t*)&h->ref_cache[list][scan8[ 0]] =
854 *(uint32_t*)&h->ref_cache[list][scan8[ 2]] = (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101;
855 ref += h->b8_stride;
856 *(uint32_t*)&h->ref_cache[list][scan8[ 8]] =
857 *(uint32_t*)&h->ref_cache[list][scan8[10]] = (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101;
6d7e6b26 858 }
c988f975 859
0b69d625
AS
860 b_stride = h->b_stride;
861 mv_dst = &h->mv_cache[list][scan8[0]];
862 mv_src = &s->current_picture.motion_val[list][4*s->mb_x + 4*s->mb_y*b_stride];
c988f975 863 for(y=0; y<4; y++){
0b69d625 864 AV_COPY128(mv_dst + 8*y, mv_src + y*b_stride);
c988f975
MN
865 }
866
e1e94902
MN
867 }
868 }
869 }else{
870 topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
871 top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
872 topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
873 left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
874 left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
875
7a93858a
MN
876 if(IS_INTRA(mb_type)){
877 int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1;
878 h->topleft_samples_available=
879 h->top_samples_available=
880 h->left_samples_available= 0xFFFF;
881 h->topright_samples_available= 0xEEEA;
882
883 if(!(top_type & type_mask)){
884 h->topleft_samples_available= 0xB3FF;
885 h->top_samples_available= 0x33FF;
886 h->topright_samples_available= 0x26EA;
887 }
888 if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[0])){
889 if(IS_INTERLACED(mb_type)){
890 if(!(left_type[0] & type_mask)){
891 h->topleft_samples_available&= 0xDFFF;
892 h->left_samples_available&= 0x5FFF;
893 }
894 if(!(left_type[1] & type_mask)){
895 h->topleft_samples_available&= 0xFF5F;
896 h->left_samples_available&= 0xFF5F;
897 }
898 }else{
899 int left_typei = h->slice_table[left_xy[0] + s->mb_stride ] == h->slice_num
900 ? s->current_picture.mb_type[left_xy[0] + s->mb_stride] : 0;
901 assert(left_xy[0] == left_xy[1]);
902 if(!((left_typei & type_mask) && (left_type[0] & type_mask))){
903 h->topleft_samples_available&= 0xDF5F;
904 h->left_samples_available&= 0x5F5F;
905 }
e1e94902
MN
906 }
907 }else{
7a93858a 908 if(!(left_type[0] & type_mask)){
e1e94902
MN
909 h->topleft_samples_available&= 0xDF5F;
910 h->left_samples_available&= 0x5F5F;
911 }
912 }
e1e94902 913
7a93858a
MN
914 if(!(topleft_type & type_mask))
915 h->topleft_samples_available&= 0x7FFF;
e1e94902 916
7a93858a
MN
917 if(!(topright_type & type_mask))
918 h->topright_samples_available&= 0xFBFF;
e1e94902 919
7a93858a
MN
920 if(IS_INTRA4x4(mb_type)){
921 if(IS_INTRA4x4(top_type)){
922 h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
923 h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
924 h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
925 h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
e1e94902
MN
926 }else{
927 int pred;
7a93858a 928 if(!(top_type & type_mask))
e1e94902
MN
929 pred= -1;
930 else{
931 pred= 2;
932 }
7a93858a
MN
933 h->intra4x4_pred_mode_cache[4+8*0]=
934 h->intra4x4_pred_mode_cache[5+8*0]=
935 h->intra4x4_pred_mode_cache[6+8*0]=
936 h->intra4x4_pred_mode_cache[7+8*0]= pred;
937 }
938 for(i=0; i<2; i++){
939 if(IS_INTRA4x4(left_type[i])){
940 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
941 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
942 }else{
943 int pred;
944 if(!(left_type[i] & type_mask))
945 pred= -1;
946 else{
947 pred= 2;
948 }
949 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
950 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
951 }
e1e94902
MN
952 }
953 }
954 }
955 }
e1e94902
MN
956
957
958/*
9590 . T T. T T T T
9601 L . .L . . . .
9612 L . .L . . . .
9623 . T TL . . . .
9634 L . .L . . . .
9645 L . .. . . . .
965*/
966//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
967 if(top_type){
b6303e6d 968 *(uint32_t*)&h->non_zero_count_cache[4+8*0]= *(uint32_t*)&h->non_zero_count[top_xy][4+3*8];
5e07aa77 969 if(!for_deblock){
7a93858a
MN
970 h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][1+1*8];
971 h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][2+1*8];
e1e94902 972
7a93858a
MN
973 h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][1+2*8];
974 h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][2+2*8];
5e07aa77 975 }
2c0ee018 976 }else if(!for_deblock){
7a93858a
MN
977 h->non_zero_count_cache[1+8*0]=
978 h->non_zero_count_cache[2+8*0]=
e1e94902 979
7a93858a
MN
980 h->non_zero_count_cache[1+8*3]=
981 h->non_zero_count_cache[2+8*3]=
982 *(uint32_t*)&h->non_zero_count_cache[4+8*0]= CABAC && !IS_INTRA(mb_type) ? 0 : 0x40404040;
e1e94902
MN
983 }
984
985 for (i=0; i<2; i++) {
986 if(left_type[i]){
b6303e6d
MN
987 h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]];
988 h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]];
5e07aa77 989 if(!for_deblock){
7a93858a
MN
990 h->non_zero_count_cache[0+8*1 + 8*i]= h->non_zero_count[left_xy[i]][left_block[8+4+2*i]];
991 h->non_zero_count_cache[0+8*4 + 8*i]= h->non_zero_count[left_xy[i]][left_block[8+5+2*i]];
5e07aa77 992 }
2c0ee018 993 }else if(!for_deblock){
7a93858a
MN
994 h->non_zero_count_cache[3+8*1 + 2*8*i]=
995 h->non_zero_count_cache[3+8*2 + 2*8*i]=
996 h->non_zero_count_cache[0+8*1 + 8*i]=
997 h->non_zero_count_cache[0+8*4 + 8*i]= CABAC && !IS_INTRA(mb_type) ? 0 : 64;
e1e94902
MN
998 }
999 }
1000
b6ef858e
MN
1001 // CAVLC 8x8dct requires NNZ values for residual decoding that differ from what the loop filter needs
1002 if(for_deblock && !CABAC && h->pps.transform_8x8_mode){
1003 if(IS_8x8DCT(top_type)){
1004 h->non_zero_count_cache[4+8*0]=
1005 h->non_zero_count_cache[5+8*0]= h->cbp_table[top_xy] & 4;
1006 h->non_zero_count_cache[6+8*0]=
1007 h->non_zero_count_cache[7+8*0]= h->cbp_table[top_xy] & 8;
1008 }
1009 if(IS_8x8DCT(left_type[0])){
1010 h->non_zero_count_cache[3+8*1]=
1011 h->non_zero_count_cache[3+8*2]= h->cbp_table[left_xy[0]]&2; //FIXME check MBAFF
1012 }
1013 if(IS_8x8DCT(left_type[1])){
1014 h->non_zero_count_cache[3+8*3]=
1015 h->non_zero_count_cache[3+8*4]= h->cbp_table[left_xy[1]]&8; //FIXME check MBAFF
1016 }
1017
1018 if(IS_8x8DCT(mb_type)){
1019 h->non_zero_count_cache[scan8[0 ]]= h->non_zero_count_cache[scan8[1 ]]=
b2b7ab32 1020 h->non_zero_count_cache[scan8[2 ]]= h->non_zero_count_cache[scan8[3 ]]= h->cbp & 1;
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1021
1022 h->non_zero_count_cache[scan8[0+ 4]]= h->non_zero_count_cache[scan8[1+ 4]]=
b2b7ab32 1023 h->non_zero_count_cache[scan8[2+ 4]]= h->non_zero_count_cache[scan8[3+ 4]]= h->cbp & 2;
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1024
1025 h->non_zero_count_cache[scan8[0+ 8]]= h->non_zero_count_cache[scan8[1+ 8]]=
b2b7ab32 1026 h->non_zero_count_cache[scan8[2+ 8]]= h->non_zero_count_cache[scan8[3+ 8]]= h->cbp & 4;
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1027
1028 h->non_zero_count_cache[scan8[0+12]]= h->non_zero_count_cache[scan8[1+12]]=
b2b7ab32 1029 h->non_zero_count_cache[scan8[2+12]]= h->non_zero_count_cache[scan8[3+12]]= h->cbp & 8;
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MN
1030 }
1031 }
1032
2911e132 1033 if( CABAC && !for_deblock) {
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1034 // top_cbp
1035 if(top_type) {
1036 h->top_cbp = h->cbp_table[top_xy];
1037 } else if(IS_INTRA(mb_type)) {
1038 h->top_cbp = 0x1C0;
1039 } else {
1040 h->top_cbp = 0;
1041 }
1042 // left_cbp
1043 if (left_type[0]) {
1044 h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0;
1045 } else if(IS_INTRA(mb_type)) {
1046 h->left_cbp = 0x1C0;
1047 } else {
1048 h->left_cbp = 0;
1049 }
1050 if (left_type[0]) {
1051 h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1;
1052 }
1053 if (left_type[1]) {
1054 h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3;
1055 }
1056 }
1057
1058#if 1
1059 if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
1060 int list;
1061 for(list=0; list<h->list_count; list++){
01c51168 1062 if(!for_deblock && !USES_LIST(mb_type, list) && !IS_DIRECT(mb_type)){
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1063 /*if(!h->mv_cache_clean[list]){
1064 memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
1065 memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
1066 h->mv_cache_clean[list]= 1;
1067 }*/
1068 continue;
1069 }
1070 h->mv_cache_clean[list]= 0;
1071
1072 if(USES_LIST(top_type, list)){
1073 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
1074 const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
0b69d625 1075 AV_COPY128(h->mv_cache[list][scan8[0] + 0 - 1*8], s->current_picture.motion_val[list][b_xy + 0]);
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MN
1076 if(for_deblock){
1077 int (*ref2frm)[64] = h->ref2frm[ h->slice_table[top_xy]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
1078 h->ref_cache[list][scan8[0] + 0 - 1*8]=
1079 h->ref_cache[list][scan8[0] + 1 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 0]];
1080 h->ref_cache[list][scan8[0] + 2 - 1*8]=
1081 h->ref_cache[list][scan8[0] + 3 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 1]];
1082 }else{
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MN
1083 h->ref_cache[list][scan8[0] + 0 - 1*8]=
1084 h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
1085 h->ref_cache[list][scan8[0] + 2 - 1*8]=
1086 h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
6d7e6b26 1087 }
e1e94902 1088 }else{
0b69d625 1089 AV_ZERO128(h->mv_cache[list][scan8[0] + 0 - 1*8]);
6d7e6b26 1090 *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= (((for_deblock||top_type) ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
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MN
1091 }
1092
1093 for(i=0; i<2; i++){
1094 int cache_idx = scan8[0] - 1 + i*2*8;
1095 if(USES_LIST(left_type[i], list)){
1096 const int b_xy= h->mb2b_xy[left_xy[i]] + 3;
1097 const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1;
1098 *(uint32_t*)h->mv_cache[list][cache_idx ]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]];
1099 *(uint32_t*)h->mv_cache[list][cache_idx+8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]];
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MN
1100 if(for_deblock){
1101 int (*ref2frm)[64] = h->ref2frm[ h->slice_table[left_xy[i]]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
1102 h->ref_cache[list][cache_idx ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)]];
1103 h->ref_cache[list][cache_idx+8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)]];
1104 }else{
7a93858a
MN
1105 h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)];
1106 h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)];
6d7e6b26 1107 }
e1e94902
MN
1108 }else{
1109 *(uint32_t*)h->mv_cache [list][cache_idx ]=
1110 *(uint32_t*)h->mv_cache [list][cache_idx+8]= 0;
1111 h->ref_cache[list][cache_idx ]=
6d7e6b26 1112 h->ref_cache[list][cache_idx+8]= (for_deblock||left_type[i]) ? LIST_NOT_USED : PART_NOT_AVAILABLE;
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MN
1113 }
1114 }
1115
1116 if(for_deblock || ((IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred) && !FRAME_MBAFF))
1117 continue;
1118
1119 if(USES_LIST(topleft_type, list)){
1120 const int b_xy = h->mb2b_xy[topleft_xy] + 3 + h->b_stride + (topleft_partition & 2*h->b_stride);
1121 const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + (topleft_partition & h->b8_stride);
1122 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
1123 h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
1124 }else{
1125 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
1126 h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
1127 }
1128
1129 if(USES_LIST(topright_type, list)){
1130 const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
1131 const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
1132 *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
1133 h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
1134 }else{
1135 *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
1136 h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
1137 }
1138
1139 if((IS_SKIP(mb_type) || IS_DIRECT(mb_type)) && !FRAME_MBAFF)
1140 continue;
1141
1142 h->ref_cache[list][scan8[5 ]+1] =
1143 h->ref_cache[list][scan8[7 ]+1] =
1144 h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewhere else)
1145 h->ref_cache[list][scan8[4 ]] =
1146 h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
1147 *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
1148 *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
1149 *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
1150 *(uint32_t*)h->mv_cache [list][scan8[4 ]]=
1151 *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
1152
ddd60f28 1153 if( CABAC ) {
e1e94902
MN
1154 /* XXX beurk, Load mvd */
1155 if(USES_LIST(top_type, list)){
1156 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
0b69d625 1157 AV_COPY128(h->mvd_cache[list][scan8[0] + 0 - 1*8], h->mvd_table[list][b_xy + 0]);
e1e94902 1158 }else{
0b69d625 1159 AV_ZERO128(h->mvd_cache[list][scan8[0] + 0 - 1*8]);
e1e94902
MN
1160 }
1161 if(USES_LIST(left_type[0], list)){
1162 const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
1163 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[0]];
1164 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[1]];
1165 }else{
1166 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
1167 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
1168 }
1169 if(USES_LIST(left_type[1], list)){
1170 const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
1171 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[2]];
1172 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[3]];
1173 }else{
1174 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
1175 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
1176 }
1177 *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
1178 *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
1179 *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
1180 *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
1181 *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
1182
1183 if(h->slice_type_nos == FF_B_TYPE){
1184 fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1);
1185
1186 if(IS_DIRECT(top_type)){
1187 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101;
1188 }else if(IS_8X8(top_type)){
1189 int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
1190 h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
1191 h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
1192 }else{
1193 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0;
1194 }
1195
1196 if(IS_DIRECT(left_type[0]))
1197 h->direct_cache[scan8[0] - 1 + 0*8]= 1;
1198 else if(IS_8X8(left_type[0]))
1199 h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[h->mb2b8_xy[left_xy[0]] + 1 + h->b8_stride*(left_block[0]>>1)];
1200 else
1201 h->direct_cache[scan8[0] - 1 + 0*8]= 0;
1202
1203 if(IS_DIRECT(left_type[1]))
1204 h->direct_cache[scan8[0] - 1 + 2*8]= 1;
1205 else if(IS_8X8(left_type[1]))
1206 h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[h->mb2b8_xy[left_xy[1]] + 1 + h->b8_stride*(left_block[2]>>1)];
1207 else
1208 h->direct_cache[scan8[0] - 1 + 2*8]= 0;
1209 }
1210 }
1211
1212 if(FRAME_MBAFF){
1213#define MAP_MVS\
1214 MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\
1215 MAP_F2F(scan8[0] + 0 - 1*8, top_type)\
1216 MAP_F2F(scan8[0] + 1 - 1*8, top_type)\
1217 MAP_F2F(scan8[0] + 2 - 1*8, top_type)\
1218 MAP_F2F(scan8[0] + 3 - 1*8, top_type)\
1219 MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\
1220 MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\
1221 MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\
1222 MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\
1223 MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])
1224 if(MB_FIELD){
1225#define MAP_F2F(idx, mb_type)\
1226 if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
1227 h->ref_cache[list][idx] <<= 1;\
1228 h->mv_cache[list][idx][1] /= 2;\
1229 h->mvd_cache[list][idx][1] /= 2;\
1230 }
1231 MAP_MVS
1232#undef MAP_F2F
1233 }else{
1234#define MAP_F2F(idx, mb_type)\
1235 if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
1236 h->ref_cache[list][idx] >>= 1;\
1237 h->mv_cache[list][idx][1] <<= 1;\
1238 h->mvd_cache[list][idx][1] <<= 1;\
1239 }
1240 MAP_MVS
1241#undef MAP_F2F
1242 }
1243 }
1244 }
1245 }
1246#endif
1247
2911e132 1248 if(!for_deblock)
7a93858a 1249 h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
44a5e7b6 1250 return 0;
e1e94902
MN
1251}
1252
f432b43b
MN
1253static void fill_decode_caches(H264Context *h, int mb_type){
1254 fill_caches(h, mb_type, 0);
1255}
1256
44a5e7b6
MN
1257/**
1258 *
1259 * @returns non zero if the loop filter can be skiped
1260 */
1261static int fill_filter_caches(H264Context *h, int mb_type){
1262 return fill_caches(h, mb_type, 1);
f432b43b
MN
1263}
1264
e1e94902
MN
1265/**
1266 * gets the predicted intra4x4 prediction mode.
1267 */
1268static inline int pred_intra_mode(H264Context *h, int n){
1269 const int index8= scan8[n];
1270 const int left= h->intra4x4_pred_mode_cache[index8 - 1];
1271 const int top = h->intra4x4_pred_mode_cache[index8 - 8];
1272 const int min= FFMIN(left, top);
1273
1274 tprintf(h->s.avctx, "mode:%d %d min:%d\n", left ,top, min);
1275
1276 if(min<0) return DC_PRED;
1277 else return min;
1278}
1279
1280static inline void write_back_non_zero_count(H264Context *h){
1281 const int mb_xy= h->mb_xy;
1282
0b69d625
AS
1283 AV_COPY64(&h->non_zero_count[mb_xy][ 0], &h->non_zero_count_cache[0+8*1]);
1284 AV_COPY64(&h->non_zero_count[mb_xy][ 8], &h->non_zero_count_cache[0+8*2]);
b6303e6d
MN
1285 *((uint32_t*)&h->non_zero_count[mb_xy][16]) = *((uint32_t*)&h->non_zero_count_cache[0+8*5]);
1286 *((uint32_t*)&h->non_zero_count[mb_xy][20]) = *((uint32_t*)&h->non_zero_count_cache[4+8*3]);
0b69d625 1287 AV_COPY64(&h->non_zero_count[mb_xy][24], &h->non_zero_count_cache[0+8*4]);
e1e94902
MN
1288}
1289
1290static inline void write_back_motion(H264Context *h, int mb_type){
1291 MpegEncContext * const s = &h->s;
1292 const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
1293 const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
1294 int list;
1295
1296 if(!USES_LIST(mb_type, 0))
1297 fill_rectangle(&s->current_picture.ref_index[0][b8_xy], 2, 2, h->b8_stride, (uint8_t)LIST_NOT_USED, 1);
1298
1299 for(list=0; list<h->list_count; list++){
0b69d625
AS
1300 int y, b_stride;
1301 int16_t (*mv_dst)[2];
1302 int16_t (*mv_src)[2];
1303
e1e94902
MN
1304 if(!USES_LIST(mb_type, list))
1305 continue;
1306
0b69d625
AS
1307 b_stride = h->b_stride;
1308 mv_dst = &s->current_picture.motion_val[list][b_xy];
1309 mv_src = &h->mv_cache[list][scan8[0]];
e1e94902 1310 for(y=0; y<4; y++){
0b69d625 1311 AV_COPY128(mv_dst + y*b_stride, mv_src + 8*y);
e1e94902 1312 }
ddd60f28 1313 if( CABAC ) {
0b69d625
AS
1314 int16_t (*mvd_dst)[2] = &h->mvd_table[list][b_xy];
1315 int16_t (*mvd_src)[2] = &h->mvd_cache[list][scan8[0]];
e1e94902 1316 if(IS_SKIP(mb_type))
0b69d625 1317 fill_rectangle(mvd_dst, 4, 4, h->b_stride, 0, 4);
e1e94902
MN
1318 else
1319 for(y=0; y<4; y++){
0b69d625 1320 AV_COPY128(mvd_dst + y*b_stride, mvd_src + 8*y);
e1e94902
MN
1321 }
1322 }
1323
1324 {
1325 int8_t *ref_index = &s->current_picture.ref_index[list][b8_xy];
1326 ref_index[0+0*h->b8_stride]= h->ref_cache[list][scan8[0]];
1327 ref_index[1+0*h->b8_stride]= h->ref_cache[list][scan8[4]];
1328 ref_index[0+1*h->b8_stride]= h->ref_cache[list][scan8[8]];
1329 ref_index[1+1*h->b8_stride]= h->ref_cache[list][scan8[12]];
1330 }
1331 }
1332
ddd60f28 1333 if(h->slice_type_nos == FF_B_TYPE && CABAC){
e1e94902
MN
1334 if(IS_8X8(mb_type)){
1335 uint8_t *direct_table = &h->direct_table[b8_xy];
1336 direct_table[1+0*h->b8_stride] = IS_DIRECT(h->sub_mb_type[1]) ? 1 : 0;
1337 direct_table[0+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[2]) ? 1 : 0;
1338 direct_table[1+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[3]) ? 1 : 0;
1339 }
1340 }
1341}
1342
1343static inline int get_dct8x8_allowed(H264Context *h){
1344 if(h->sps.direct_8x8_inference_flag)
1345 return !(*(uint64_t*)h->sub_mb_type & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8 )*0x0001000100010001ULL));
1346 else
1347 return !(*(uint64_t*)h->sub_mb_type & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8|MB_TYPE_DIRECT2)*0x0001000100010001ULL));
1348}
1349
1350static void predict_field_decoding_flag(H264Context *h){
1351 MpegEncContext * const s = &h->s;
1352 const int mb_xy= h->mb_xy;
1353 int mb_type = (h->slice_table[mb_xy-1] == h->slice_num)
1354 ? s->current_picture.mb_type[mb_xy-1]
1355 : (h->slice_table[mb_xy-s->mb_stride] == h->slice_num)
1356 ? s->current_picture.mb_type[mb_xy-s->mb_stride]
1357 : 0;
1358 h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
1359}
1360
1361/**
1362 * decodes a P_SKIP or B_SKIP macroblock
1363 */
1364static void decode_mb_skip(H264Context *h){
1365 MpegEncContext * const s = &h->s;
1366 const int mb_xy= h->mb_xy;
1367 int mb_type=0;
1368
c988f975 1369 memset(h->non_zero_count[mb_xy], 0, 32);
e1e94902
MN
1370 memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
1371
1372 if(MB_FIELD)
1373 mb_type|= MB_TYPE_INTERLACED;
1374
1375 if( h->slice_type_nos == FF_B_TYPE )
1376 {
1377 // just for fill_caches. pred_direct_motion will set the real mb_type
1378 mb_type|= MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP;
1379
f432b43b 1380 fill_decode_caches(h, mb_type); //FIXME check what is needed and what not ...
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1381 ff_h264_pred_direct_motion(h, &mb_type);
1382 mb_type|= MB_TYPE_SKIP;
1383 }
1384 else
1385 {
1386 int mx, my;
1387 mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP;
1388
f432b43b 1389 fill_decode_caches(h, mb_type); //FIXME check what is needed and what not ...
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1390 pred_pskip_motion(h, &mx, &my);
1391 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
1392 fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4);
1393 }
1394
1395 write_back_motion(h, mb_type);
1396 s->current_picture.mb_type[mb_xy]= mb_type;
1397 s->current_picture.qscale_table[mb_xy]= s->qscale;
1398 h->slice_table[ mb_xy ]= h->slice_num;
1399 h->prev_mb_skipped= 1;
1400}
1401
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1402#include "h264_mvpred.h" //For pred_pskip_motion()
1403
98790382 1404#endif /* AVCODEC_H264_H */