| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * HEVC CABAC decoding | ||
| 3 | * | ||
| 4 | * Copyright (C) 2012 - 2013 Guillaume Martres | ||
| 5 | * Copyright (C) 2012 - 2013 Gildas Cocherel | ||
| 6 | * | ||
| 7 | * This file is part of FFmpeg. | ||
| 8 | * | ||
| 9 | * FFmpeg is free software; you can redistribute it and/or | ||
| 10 | * modify it under the terms of the GNU Lesser General Public | ||
| 11 | * License as published by the Free Software Foundation; either | ||
| 12 | * version 2.1 of the License, or (at your option) any later version. | ||
| 13 | * | ||
| 14 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 17 | * Lesser General Public License for more details. | ||
| 18 | * | ||
| 19 | * You should have received a copy of the GNU Lesser General Public | ||
| 20 | * License along with FFmpeg; if not, write to the Free Software | ||
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 22 | */ | ||
| 23 | |||
| 24 | #include "libavutil/attributes.h" | ||
| 25 | #include "libavutil/common.h" | ||
| 26 | |||
| 27 | #include "libavcodec/cabac_functions.h" | ||
| 28 | #include "data.h" | ||
| 29 | #include "hevc.h" | ||
| 30 | #include "hevcdec.h" | ||
| 31 | |||
| 32 | #define CABAC_MAX_BIN 31 | ||
| 33 | |||
| 34 | // ELEM(NAME, NUM_BINS) | ||
| 35 | #define CABAC_ELEMS(ELEM) \ | ||
| 36 | ELEM(SAO_MERGE_FLAG, 1) \ | ||
| 37 | ELEM(SAO_TYPE_IDX, 1) \ | ||
| 38 | ELEM(SAO_EO_CLASS, 0) \ | ||
| 39 | ELEM(SAO_BAND_POSITION, 0) \ | ||
| 40 | ELEM(SAO_OFFSET_ABS, 0) \ | ||
| 41 | ELEM(SAO_OFFSET_SIGN, 0) \ | ||
| 42 | ELEM(END_OF_SLICE_FLAG, 0) \ | ||
| 43 | ELEM(SPLIT_CODING_UNIT_FLAG, 3) \ | ||
| 44 | ELEM(CU_TRANSQUANT_BYPASS_FLAG, 1) \ | ||
| 45 | ELEM(SKIP_FLAG, 3) \ | ||
| 46 | ELEM(CU_QP_DELTA, 3) \ | ||
| 47 | ELEM(PRED_MODE_FLAG, 1) \ | ||
| 48 | ELEM(PART_MODE, 4) \ | ||
| 49 | ELEM(PCM_FLAG, 0) \ | ||
| 50 | ELEM(PREV_INTRA_LUMA_PRED_FLAG, 1) \ | ||
| 51 | ELEM(MPM_IDX, 0) \ | ||
| 52 | ELEM(REM_INTRA_LUMA_PRED_MODE, 0) \ | ||
| 53 | ELEM(INTRA_CHROMA_PRED_MODE, 2) \ | ||
| 54 | ELEM(MERGE_FLAG, 1) \ | ||
| 55 | ELEM(MERGE_IDX, 1) \ | ||
| 56 | ELEM(INTER_PRED_IDC, 5) \ | ||
| 57 | ELEM(REF_IDX_L0, 2) \ | ||
| 58 | ELEM(REF_IDX_L1, 2) \ | ||
| 59 | ELEM(ABS_MVD_GREATER0_FLAG, 2) \ | ||
| 60 | ELEM(ABS_MVD_GREATER1_FLAG, 2) \ | ||
| 61 | ELEM(ABS_MVD_MINUS2, 0) \ | ||
| 62 | ELEM(MVD_SIGN_FLAG, 0) \ | ||
| 63 | ELEM(MVP_LX_FLAG, 1) \ | ||
| 64 | ELEM(NO_RESIDUAL_DATA_FLAG, 1) \ | ||
| 65 | ELEM(SPLIT_TRANSFORM_FLAG, 3) \ | ||
| 66 | ELEM(CBF_LUMA, 2) \ | ||
| 67 | ELEM(CBF_CB_CR, 5) \ | ||
| 68 | ELEM(TRANSFORM_SKIP_FLAG, 2) \ | ||
| 69 | ELEM(EXPLICIT_RDPCM_FLAG, 2) \ | ||
| 70 | ELEM(EXPLICIT_RDPCM_DIR_FLAG, 2) \ | ||
| 71 | ELEM(LAST_SIGNIFICANT_COEFF_X_PREFIX, 18) \ | ||
| 72 | ELEM(LAST_SIGNIFICANT_COEFF_Y_PREFIX, 18) \ | ||
| 73 | ELEM(LAST_SIGNIFICANT_COEFF_X_SUFFIX, 0) \ | ||
| 74 | ELEM(LAST_SIGNIFICANT_COEFF_Y_SUFFIX, 0) \ | ||
| 75 | ELEM(SIGNIFICANT_COEFF_GROUP_FLAG, 4) \ | ||
| 76 | ELEM(SIGNIFICANT_COEFF_FLAG, 44) \ | ||
| 77 | ELEM(COEFF_ABS_LEVEL_GREATER1_FLAG, 24) \ | ||
| 78 | ELEM(COEFF_ABS_LEVEL_GREATER2_FLAG, 6) \ | ||
| 79 | ELEM(COEFF_ABS_LEVEL_REMAINING, 0) \ | ||
| 80 | ELEM(COEFF_SIGN_FLAG, 0) \ | ||
| 81 | ELEM(LOG2_RES_SCALE_ABS, 8) \ | ||
| 82 | ELEM(RES_SCALE_SIGN_FLAG, 2) \ | ||
| 83 | ELEM(CU_CHROMA_QP_OFFSET_FLAG, 1) \ | ||
| 84 | ELEM(CU_CHROMA_QP_OFFSET_IDX, 1) \ | ||
| 85 | |||
| 86 | /** | ||
| 87 | * Offset to ctxIdx 0 in init_values and states. | ||
| 88 | */ | ||
| 89 | enum { | ||
| 90 | #define OFFSET(NAME, NUM_BINS) \ | ||
| 91 | NAME ## _OFFSET, \ | ||
| 92 | NAME ## _END = NAME ## _OFFSET + NUM_BINS - 1, | ||
| 93 | CABAC_ELEMS(OFFSET) | ||
| 94 | }; | ||
| 95 | |||
| 96 | #define CNU 154 | ||
| 97 | /** | ||
| 98 | * Indexed by init_type | ||
| 99 | */ | ||
| 100 | static const uint8_t init_values[3][HEVC_CONTEXTS] = { | ||
| 101 | { // sao_merge_flag | ||
| 102 | 153, | ||
| 103 | // sao_type_idx | ||
| 104 | 200, | ||
| 105 | // split_coding_unit_flag | ||
| 106 | 139, 141, 157, | ||
| 107 | // cu_transquant_bypass_flag | ||
| 108 | 154, | ||
| 109 | // skip_flag | ||
| 110 | CNU, CNU, CNU, | ||
| 111 | // cu_qp_delta | ||
| 112 | 154, 154, 154, | ||
| 113 | // pred_mode | ||
| 114 | CNU, | ||
| 115 | // part_mode | ||
| 116 | 184, CNU, CNU, CNU, | ||
| 117 | // prev_intra_luma_pred_mode | ||
| 118 | 184, | ||
| 119 | // intra_chroma_pred_mode | ||
| 120 | 63, 139, | ||
| 121 | // merge_flag | ||
| 122 | CNU, | ||
| 123 | // merge_idx | ||
| 124 | CNU, | ||
| 125 | // inter_pred_idc | ||
| 126 | CNU, CNU, CNU, CNU, CNU, | ||
| 127 | // ref_idx_l0 | ||
| 128 | CNU, CNU, | ||
| 129 | // ref_idx_l1 | ||
| 130 | CNU, CNU, | ||
| 131 | // abs_mvd_greater1_flag | ||
| 132 | CNU, CNU, | ||
| 133 | // abs_mvd_greater1_flag | ||
| 134 | CNU, CNU, | ||
| 135 | // mvp_lx_flag | ||
| 136 | CNU, | ||
| 137 | // no_residual_data_flag | ||
| 138 | CNU, | ||
| 139 | // split_transform_flag | ||
| 140 | 153, 138, 138, | ||
| 141 | // cbf_luma | ||
| 142 | 111, 141, | ||
| 143 | // cbf_cb, cbf_cr | ||
| 144 | 94, 138, 182, 154, 154, | ||
| 145 | // transform_skip_flag | ||
| 146 | 139, 139, | ||
| 147 | // explicit_rdpcm_flag | ||
| 148 | 139, 139, | ||
| 149 | // explicit_rdpcm_dir_flag | ||
| 150 | 139, 139, | ||
| 151 | // last_significant_coeff_x_prefix | ||
| 152 | 110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111, | ||
| 153 | 79, 108, 123, 63, | ||
| 154 | // last_significant_coeff_y_prefix | ||
| 155 | 110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111, | ||
| 156 | 79, 108, 123, 63, | ||
| 157 | // significant_coeff_group_flag | ||
| 158 | 91, 171, 134, 141, | ||
| 159 | // significant_coeff_flag | ||
| 160 | 111, 111, 125, 110, 110, 94, 124, 108, 124, 107, 125, 141, 179, 153, | ||
| 161 | 125, 107, 125, 141, 179, 153, 125, 107, 125, 141, 179, 153, 125, 140, | ||
| 162 | 139, 182, 182, 152, 136, 152, 136, 153, 136, 139, 111, 136, 139, 111, | ||
| 163 | 141, 111, | ||
| 164 | // coeff_abs_level_greater1_flag | ||
| 165 | 140, 92, 137, 138, 140, 152, 138, 139, 153, 74, 149, 92, 139, 107, | ||
| 166 | 122, 152, 140, 179, 166, 182, 140, 227, 122, 197, | ||
| 167 | // coeff_abs_level_greater2_flag | ||
| 168 | 138, 153, 136, 167, 152, 152, | ||
| 169 | // log2_res_scale_abs | ||
| 170 | 154, 154, 154, 154, 154, 154, 154, 154, | ||
| 171 | // res_scale_sign_flag | ||
| 172 | 154, 154, | ||
| 173 | // cu_chroma_qp_offset_flag | ||
| 174 | 154, | ||
| 175 | // cu_chroma_qp_offset_idx | ||
| 176 | 154, | ||
| 177 | }, | ||
| 178 | { // sao_merge_flag | ||
| 179 | 153, | ||
| 180 | // sao_type_idx | ||
| 181 | 185, | ||
| 182 | // split_coding_unit_flag | ||
| 183 | 107, 139, 126, | ||
| 184 | // cu_transquant_bypass_flag | ||
| 185 | 154, | ||
| 186 | // skip_flag | ||
| 187 | 197, 185, 201, | ||
| 188 | // cu_qp_delta | ||
| 189 | 154, 154, 154, | ||
| 190 | // pred_mode | ||
| 191 | 149, | ||
| 192 | // part_mode | ||
| 193 | 154, 139, 154, 154, | ||
| 194 | // prev_intra_luma_pred_mode | ||
| 195 | 154, | ||
| 196 | // intra_chroma_pred_mode | ||
| 197 | 152, 139, | ||
| 198 | // merge_flag | ||
| 199 | 110, | ||
| 200 | // merge_idx | ||
| 201 | 122, | ||
| 202 | // inter_pred_idc | ||
| 203 | 95, 79, 63, 31, 31, | ||
| 204 | // ref_idx_l0 | ||
| 205 | 153, 153, | ||
| 206 | // ref_idx_l1 | ||
| 207 | 153, 153, | ||
| 208 | // abs_mvd_greater1_flag | ||
| 209 | 140, 198, | ||
| 210 | // abs_mvd_greater1_flag | ||
| 211 | 140, 198, | ||
| 212 | // mvp_lx_flag | ||
| 213 | 168, | ||
| 214 | // no_residual_data_flag | ||
| 215 | 79, | ||
| 216 | // split_transform_flag | ||
| 217 | 124, 138, 94, | ||
| 218 | // cbf_luma | ||
| 219 | 153, 111, | ||
| 220 | // cbf_cb, cbf_cr | ||
| 221 | 149, 107, 167, 154, 154, | ||
| 222 | // transform_skip_flag | ||
| 223 | 139, 139, | ||
| 224 | // explicit_rdpcm_flag | ||
| 225 | 139, 139, | ||
| 226 | // explicit_rdpcm_dir_flag | ||
| 227 | 139, 139, | ||
| 228 | // last_significant_coeff_x_prefix | ||
| 229 | 125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95, | ||
| 230 | 94, 108, 123, 108, | ||
| 231 | // last_significant_coeff_y_prefix | ||
| 232 | 125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95, | ||
| 233 | 94, 108, 123, 108, | ||
| 234 | // significant_coeff_group_flag | ||
| 235 | 121, 140, 61, 154, | ||
| 236 | // significant_coeff_flag | ||
| 237 | 155, 154, 139, 153, 139, 123, 123, 63, 153, 166, 183, 140, 136, 153, | ||
| 238 | 154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 170, | ||
| 239 | 153, 123, 123, 107, 121, 107, 121, 167, 151, 183, 140, 151, 183, 140, | ||
| 240 | 140, 140, | ||
| 241 | // coeff_abs_level_greater1_flag | ||
| 242 | 154, 196, 196, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121, | ||
| 243 | 136, 137, 169, 194, 166, 167, 154, 167, 137, 182, | ||
| 244 | // coeff_abs_level_greater2_flag | ||
| 245 | 107, 167, 91, 122, 107, 167, | ||
| 246 | // log2_res_scale_abs | ||
| 247 | 154, 154, 154, 154, 154, 154, 154, 154, | ||
| 248 | // res_scale_sign_flag | ||
| 249 | 154, 154, | ||
| 250 | // cu_chroma_qp_offset_flag | ||
| 251 | 154, | ||
| 252 | // cu_chroma_qp_offset_idx | ||
| 253 | 154, | ||
| 254 | }, | ||
| 255 | { // sao_merge_flag | ||
| 256 | 153, | ||
| 257 | // sao_type_idx | ||
| 258 | 160, | ||
| 259 | // split_coding_unit_flag | ||
| 260 | 107, 139, 126, | ||
| 261 | // cu_transquant_bypass_flag | ||
| 262 | 154, | ||
| 263 | // skip_flag | ||
| 264 | 197, 185, 201, | ||
| 265 | // cu_qp_delta | ||
| 266 | 154, 154, 154, | ||
| 267 | // pred_mode | ||
| 268 | 134, | ||
| 269 | // part_mode | ||
| 270 | 154, 139, 154, 154, | ||
| 271 | // prev_intra_luma_pred_mode | ||
| 272 | 183, | ||
| 273 | // intra_chroma_pred_mode | ||
| 274 | 152, 139, | ||
| 275 | // merge_flag | ||
| 276 | 154, | ||
| 277 | // merge_idx | ||
| 278 | 137, | ||
| 279 | // inter_pred_idc | ||
| 280 | 95, 79, 63, 31, 31, | ||
| 281 | // ref_idx_l0 | ||
| 282 | 153, 153, | ||
| 283 | // ref_idx_l1 | ||
| 284 | 153, 153, | ||
| 285 | // abs_mvd_greater1_flag | ||
| 286 | 169, 198, | ||
| 287 | // abs_mvd_greater1_flag | ||
| 288 | 169, 198, | ||
| 289 | // mvp_lx_flag | ||
| 290 | 168, | ||
| 291 | // no_residual_data_flag | ||
| 292 | 79, | ||
| 293 | // split_transform_flag | ||
| 294 | 224, 167, 122, | ||
| 295 | // cbf_luma | ||
| 296 | 153, 111, | ||
| 297 | // cbf_cb, cbf_cr | ||
| 298 | 149, 92, 167, 154, 154, | ||
| 299 | // transform_skip_flag | ||
| 300 | 139, 139, | ||
| 301 | // explicit_rdpcm_flag | ||
| 302 | 139, 139, | ||
| 303 | // explicit_rdpcm_dir_flag | ||
| 304 | 139, 139, | ||
| 305 | // last_significant_coeff_x_prefix | ||
| 306 | 125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111, | ||
| 307 | 79, 108, 123, 93, | ||
| 308 | // last_significant_coeff_y_prefix | ||
| 309 | 125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111, | ||
| 310 | 79, 108, 123, 93, | ||
| 311 | // significant_coeff_group_flag | ||
| 312 | 121, 140, 61, 154, | ||
| 313 | // significant_coeff_flag | ||
| 314 | 170, 154, 139, 153, 139, 123, 123, 63, 124, 166, 183, 140, 136, 153, | ||
| 315 | 154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 170, | ||
| 316 | 153, 138, 138, 122, 121, 122, 121, 167, 151, 183, 140, 151, 183, 140, | ||
| 317 | 140, 140, | ||
| 318 | // coeff_abs_level_greater1_flag | ||
| 319 | 154, 196, 167, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121, | ||
| 320 | 136, 122, 169, 208, 166, 167, 154, 152, 167, 182, | ||
| 321 | // coeff_abs_level_greater2_flag | ||
| 322 | 107, 167, 91, 107, 107, 167, | ||
| 323 | // log2_res_scale_abs | ||
| 324 | 154, 154, 154, 154, 154, 154, 154, 154, | ||
| 325 | // res_scale_sign_flag | ||
| 326 | 154, 154, | ||
| 327 | // cu_chroma_qp_offset_flag | ||
| 328 | 154, | ||
| 329 | // cu_chroma_qp_offset_idx | ||
| 330 | 154, | ||
| 331 | }, | ||
| 332 | }; | ||
| 333 | |||
| 334 | static const uint8_t scan_1x1[1] = { | ||
| 335 | 0, | ||
| 336 | }; | ||
| 337 | |||
| 338 | static const uint8_t horiz_scan2x2_x[4] = { | ||
| 339 | 0, 1, 0, 1, | ||
| 340 | }; | ||
| 341 | |||
| 342 | static const uint8_t horiz_scan2x2_y[4] = { | ||
| 343 | 0, 0, 1, 1 | ||
| 344 | }; | ||
| 345 | |||
| 346 | static const uint8_t horiz_scan4x4_x[16] = { | ||
| 347 | 0, 1, 2, 3, | ||
| 348 | 0, 1, 2, 3, | ||
| 349 | 0, 1, 2, 3, | ||
| 350 | 0, 1, 2, 3, | ||
| 351 | }; | ||
| 352 | |||
| 353 | static const uint8_t horiz_scan4x4_y[16] = { | ||
| 354 | 0, 0, 0, 0, | ||
| 355 | 1, 1, 1, 1, | ||
| 356 | 2, 2, 2, 2, | ||
| 357 | 3, 3, 3, 3, | ||
| 358 | }; | ||
| 359 | |||
| 360 | static const uint8_t horiz_scan8x8_inv[8][8] = { | ||
| 361 | { 0, 1, 2, 3, 16, 17, 18, 19, }, | ||
| 362 | { 4, 5, 6, 7, 20, 21, 22, 23, }, | ||
| 363 | { 8, 9, 10, 11, 24, 25, 26, 27, }, | ||
| 364 | { 12, 13, 14, 15, 28, 29, 30, 31, }, | ||
| 365 | { 32, 33, 34, 35, 48, 49, 50, 51, }, | ||
| 366 | { 36, 37, 38, 39, 52, 53, 54, 55, }, | ||
| 367 | { 40, 41, 42, 43, 56, 57, 58, 59, }, | ||
| 368 | { 44, 45, 46, 47, 60, 61, 62, 63, }, | ||
| 369 | }; | ||
| 370 | |||
| 371 | static const uint8_t diag_scan2x2_x[4] = { | ||
| 372 | 0, 0, 1, 1, | ||
| 373 | }; | ||
| 374 | |||
| 375 | static const uint8_t diag_scan2x2_y[4] = { | ||
| 376 | 0, 1, 0, 1, | ||
| 377 | }; | ||
| 378 | |||
| 379 | static const uint8_t diag_scan2x2_inv[2][2] = { | ||
| 380 | { 0, 2, }, | ||
| 381 | { 1, 3, }, | ||
| 382 | }; | ||
| 383 | |||
| 384 | static const uint8_t diag_scan4x4_inv[4][4] = { | ||
| 385 | { 0, 2, 5, 9, }, | ||
| 386 | { 1, 4, 8, 12, }, | ||
| 387 | { 3, 7, 11, 14, }, | ||
| 388 | { 6, 10, 13, 15, }, | ||
| 389 | }; | ||
| 390 | |||
| 391 | static const uint8_t diag_scan8x8_inv[8][8] = { | ||
| 392 | { 0, 2, 5, 9, 14, 20, 27, 35, }, | ||
| 393 | { 1, 4, 8, 13, 19, 26, 34, 42, }, | ||
| 394 | { 3, 7, 12, 18, 25, 33, 41, 48, }, | ||
| 395 | { 6, 11, 17, 24, 32, 40, 47, 53, }, | ||
| 396 | { 10, 16, 23, 31, 39, 46, 52, 57, }, | ||
| 397 | { 15, 22, 30, 38, 45, 51, 56, 60, }, | ||
| 398 | { 21, 29, 37, 44, 50, 55, 59, 62, }, | ||
| 399 | { 28, 36, 43, 49, 54, 58, 61, 63, }, | ||
| 400 | }; | ||
| 401 | |||
| 402 | 2008935 | void ff_hevc_save_states(HEVCLocalContext *lc, const HEVCPPS *pps, | |
| 403 | int ctb_addr_ts) | ||
| 404 | { | ||
| 405 | 2008935 | const HEVCSPS *const sps = pps->sps; | |
| 406 |
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2008935 | if (pps->entropy_coding_sync_enabled_flag && |
| 407 |
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173854 | (ctb_addr_ts % sps->ctb_width == 2 || |
| 408 |
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166465 | (sps->ctb_width == 2 && |
| 409 |
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784 | ctb_addr_ts % sps->ctb_width == 0))) { |
| 410 | 7781 | memcpy(lc->common_cabac_state->state, lc->cabac_state, HEVC_CONTEXTS); | |
| 411 |
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7781 | if (sps->persistent_rice_adaptation_enabled) { |
| 412 | 48 | memcpy(lc->common_cabac_state->stat_coeff, lc->stat_coeff, HEVC_STAT_COEFFS); | |
| 413 | } | ||
| 414 | } | ||
| 415 | 2008935 | } | |
| 416 | |||
| 417 | 6479 | static void load_states(HEVCLocalContext *lc, const HEVCSPS *sps) | |
| 418 | { | ||
| 419 | 6479 | memcpy(lc->cabac_state, lc->common_cabac_state->state, HEVC_CONTEXTS); | |
| 420 |
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6479 | if (sps->persistent_rice_adaptation_enabled) { |
| 421 | 44 | memcpy(lc->stat_coeff, lc->common_cabac_state->stat_coeff, HEVC_STAT_COEFFS); | |
| 422 | } | ||
| 423 | 6479 | } | |
| 424 | |||
| 425 | 10144 | static int cabac_reinit(HEVCLocalContext *lc) | |
| 426 | { | ||
| 427 |
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10144 | return skip_bytes(&lc->cc, 0) == NULL ? AVERROR_INVALIDDATA : 0; |
| 428 | } | ||
| 429 | |||
| 430 | 26098 | static void cabac_init_state(HEVCLocalContext *lc, const HEVCContext *s) | |
| 431 | { | ||
| 432 | 26098 | int init_type = 2 - s->sh.slice_type; | |
| 433 | int i; | ||
| 434 | |||
| 435 |
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26098 | if (s->sh.cabac_init_flag && s->sh.slice_type != HEVC_SLICE_I) |
| 436 | 6463 | init_type ^= 3; | |
| 437 | |||
| 438 |
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5219600 | for (i = 0; i < HEVC_CONTEXTS; i++) { |
| 439 | 5193502 | int init_value = init_values[init_type][i]; | |
| 440 | 5193502 | int m = (init_value >> 4) * 5 - 45; | |
| 441 | 5193502 | int n = ((init_value & 15) << 3) - 16; | |
| 442 | 5193502 | int pre = 2 * (((m * av_clip(s->sh.slice_qp, 0, 51)) >> 4) + n) - 127; | |
| 443 | |||
| 444 | 5193502 | pre ^= pre >> 31; | |
| 445 |
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5193502 | if (pre > 124) |
| 446 | 533087 | pre = 124 + (pre & 1); | |
| 447 | 5193502 | lc->cabac_state[i] = pre; | |
| 448 | } | ||
| 449 | |||
| 450 |
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130490 | for (i = 0; i < 4; i++) |
| 451 | 104392 | lc->stat_coeff[i] = 0; | |
| 452 | 26098 | } | |
| 453 | |||
| 454 | 2008936 | int ff_hevc_cabac_init(HEVCLocalContext *lc, const HEVCPPS *pps, | |
| 455 | int ctb_addr_ts, const uint8_t *data, size_t size, | ||
| 456 | int is_wpp) | ||
| 457 | { | ||
| 458 | 2008936 | const HEVCContext *const s = lc->parent; | |
| 459 | 2008936 | const HEVCSPS *const sps = pps->sps; | |
| 460 | |||
| 461 |
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2008936 | if (ctb_addr_ts == pps->ctb_addr_rs_to_ts[s->sh.slice_ctb_addr_rs]) { |
| 462 | 28817 | int ret = ff_init_cabac_decoder(&lc->cc, data, size); | |
| 463 |
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28817 | if (ret < 0) |
| 464 | ✗ | return ret; | |
| 465 |
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28817 | if (s->sh.dependent_slice_segment_flag == 0 || |
| 466 |
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7947 | (pps->tiles_enabled_flag && |
| 467 |
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876 | pps->tile_id[ctb_addr_ts] != pps->tile_id[ctb_addr_ts - 1])) |
| 468 | 21179 | cabac_init_state(lc, s); | |
| 469 | |||
| 470 |
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28817 | if (!s->sh.first_slice_in_pic_flag && |
| 471 |
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18251 | pps->entropy_coding_sync_enabled_flag) { |
| 472 |
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3853 | if (ctb_addr_ts % sps->ctb_width == 0) { |
| 473 |
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1636 | if (sps->ctb_width == 1) |
| 474 | 92 | cabac_init_state(lc, s); | |
| 475 |
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1544 | else if (s->sh.dependent_slice_segment_flag == 1) |
| 476 | 1162 | load_states(lc, sps); | |
| 477 | } | ||
| 478 | } | ||
| 479 | } else { | ||
| 480 |
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1980119 | if (pps->tiles_enabled_flag && |
| 481 |
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677565 | pps->tile_id[ctb_addr_ts] != pps->tile_id[ctb_addr_ts - 1]) { |
| 482 | int ret; | ||
| 483 |
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4625 | if (!is_wpp) |
| 484 | 4625 | ret = cabac_reinit(lc); | |
| 485 | else { | ||
| 486 | ✗ | ret = ff_init_cabac_decoder(&lc->cc, data, size); | |
| 487 | } | ||
| 488 |
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4625 | if (ret < 0) |
| 489 | ✗ | return ret; | |
| 490 | 4625 | cabac_init_state(lc, s); | |
| 491 | } | ||
| 492 |
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1980119 | if (pps->entropy_coding_sync_enabled_flag) { |
| 493 |
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168983 | if (ctb_addr_ts % sps->ctb_width == 0) { |
| 494 | int ret; | ||
| 495 | 5519 | get_cabac_terminate(&lc->cc); | |
| 496 |
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5519 | if (!is_wpp) |
| 497 | 5519 | ret = cabac_reinit(lc); | |
| 498 | else { | ||
| 499 | ✗ | ret = ff_init_cabac_decoder(&lc->cc, data, size); | |
| 500 | } | ||
| 501 |
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5519 | if (ret < 0) |
| 502 | ✗ | return ret; | |
| 503 | |||
| 504 |
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5519 | if (sps->ctb_width == 1) |
| 505 | 202 | cabac_init_state(lc, s); | |
| 506 | else | ||
| 507 | 5317 | load_states(lc, sps); | |
| 508 | } | ||
| 509 | } | ||
| 510 | } | ||
| 511 | 2008936 | return 0; | |
| 512 | } | ||
| 513 | |||
| 514 | #define GET_CABAC(ctx) get_cabac(&lc->cc, &lc->cabac_state[ctx]) | ||
| 515 | |||
| 516 | 1503363 | int ff_hevc_sao_merge_flag_decode(HEVCLocalContext *lc) | |
| 517 | { | ||
| 518 | 1503363 | return GET_CABAC(SAO_MERGE_FLAG_OFFSET); | |
| 519 | } | ||
| 520 | |||
| 521 | 599594 | int ff_hevc_sao_type_idx_decode(HEVCLocalContext *lc) | |
| 522 | { | ||
| 523 |
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599594 | if (!GET_CABAC(SAO_TYPE_IDX_OFFSET)) |
| 524 | 401720 | return 0; | |
| 525 | |||
| 526 |
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197874 | if (!get_cabac_bypass(&lc->cc)) |
| 527 | 57626 | return SAO_BAND; | |
| 528 | 140248 | return SAO_EDGE; | |
| 529 | } | ||
| 530 | |||
| 531 | 82676 | int ff_hevc_sao_band_position_decode(HEVCLocalContext *lc) | |
| 532 | { | ||
| 533 | int i; | ||
| 534 | 82676 | int value = get_cabac_bypass(&lc->cc); | |
| 535 | |||
| 536 |
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413380 | for (i = 0; i < 4; i++) |
| 537 | 330704 | value = (value << 1) | get_cabac_bypass(&lc->cc); | |
| 538 | 82676 | return value; | |
| 539 | } | ||
| 540 | |||
| 541 | 1029260 | int ff_hevc_sao_offset_abs_decode(HEVCLocalContext *lc, int bit_depth) | |
| 542 | { | ||
| 543 | 1029260 | int i = 0; | |
| 544 | 1029260 | int length = (1 << (FFMIN(bit_depth, 10) - 5)) - 1; | |
| 545 | |||
| 546 |
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2893351 | while (i < length && get_cabac_bypass(&lc->cc)) |
| 547 | 1864091 | i++; | |
| 548 | 1029260 | return i; | |
| 549 | } | ||
| 550 | |||
| 551 | 252778 | int ff_hevc_sao_offset_sign_decode(HEVCLocalContext *lc) | |
| 552 | { | ||
| 553 | 252778 | return get_cabac_bypass(&lc->cc); | |
| 554 | } | ||
| 555 | |||
| 556 | 140248 | int ff_hevc_sao_eo_class_decode(HEVCLocalContext *lc) | |
| 557 | { | ||
| 558 | 140248 | int ret = get_cabac_bypass(&lc->cc) << 1; | |
| 559 | 140248 | ret |= get_cabac_bypass(&lc->cc); | |
| 560 | 140248 | return ret; | |
| 561 | } | ||
| 562 | |||
| 563 | 2008935 | int ff_hevc_end_of_slice_flag_decode(HEVCLocalContext *lc) | |
| 564 | { | ||
| 565 | 2008935 | return get_cabac_terminate(&lc->cc); | |
| 566 | } | ||
| 567 | |||
| 568 | 211788 | int ff_hevc_cu_transquant_bypass_flag_decode(HEVCLocalContext *lc) | |
| 569 | { | ||
| 570 | 211788 | return GET_CABAC(CU_TRANSQUANT_BYPASS_FLAG_OFFSET); | |
| 571 | } | ||
| 572 | |||
| 573 | 9866641 | int ff_hevc_skip_flag_decode(HEVCLocalContext *lc, uint8_t *skip_flag, | |
| 574 | int x0, int y0, int x_cb, int y_cb, int min_cb_width) | ||
| 575 | { | ||
| 576 | 9866641 | int inc = 0; | |
| 577 | |||
| 578 |
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9866641 | if (lc->ctb_left_flag || x0) |
| 579 | 9620102 | inc = !!SAMPLE_CTB(skip_flag, x_cb - 1, y_cb); | |
| 580 |
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9866641 | if (lc->ctb_up_flag || y0) |
| 581 | 9383619 | inc += !!SAMPLE_CTB(skip_flag, x_cb, y_cb - 1); | |
| 582 | |||
| 583 | 9866641 | return GET_CABAC(SKIP_FLAG_OFFSET + inc); | |
| 584 | } | ||
| 585 | |||
| 586 | 1021402 | int ff_hevc_cu_qp_delta_abs(HEVCLocalContext *lc) | |
| 587 | { | ||
| 588 | 1021402 | int prefix_val = 0; | |
| 589 | 1021402 | int suffix_val = 0; | |
| 590 | 1021402 | int inc = 0; | |
| 591 | |||
| 592 |
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2404869 | while (prefix_val < 5 && GET_CABAC(CU_QP_DELTA_OFFSET + inc)) { |
| 593 | 1383467 | prefix_val++; | |
| 594 | 1383467 | inc = 1; | |
| 595 | } | ||
| 596 |
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1021402 | if (prefix_val >= 5) { |
| 597 | 147844 | int k = 0; | |
| 598 |
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451675 | while (k < 7 && get_cabac_bypass(&lc->cc)) { |
| 599 | 303831 | suffix_val += 1 << k; | |
| 600 | 303831 | k++; | |
| 601 | } | ||
| 602 |
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147844 | if (k == 7) { |
| 603 | ✗ | av_log(lc->logctx, AV_LOG_ERROR, "CABAC_MAX_BIN : %d\n", k); | |
| 604 | ✗ | return AVERROR_INVALIDDATA; | |
| 605 | } | ||
| 606 | |||
| 607 |
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451675 | while (k--) |
| 608 | 303831 | suffix_val += get_cabac_bypass(&lc->cc) << k; | |
| 609 | } | ||
| 610 | 1021402 | return prefix_val + suffix_val; | |
| 611 | } | ||
| 612 | |||
| 613 | 529266 | int ff_hevc_cu_qp_delta_sign_flag(HEVCLocalContext *lc) | |
| 614 | { | ||
| 615 | 529266 | return get_cabac_bypass(&lc->cc); | |
| 616 | } | ||
| 617 | |||
| 618 | 266275 | int ff_hevc_cu_chroma_qp_offset_flag(HEVCLocalContext *lc) | |
| 619 | { | ||
| 620 | 266275 | return GET_CABAC(CU_CHROMA_QP_OFFSET_FLAG_OFFSET); | |
| 621 | } | ||
| 622 | |||
| 623 | ✗ | int ff_hevc_cu_chroma_qp_offset_idx(HEVCLocalContext *lc, int chroma_qp_offset_list_len_minus1) | |
| 624 | { | ||
| 625 | ✗ | int c_max= FFMAX(5, chroma_qp_offset_list_len_minus1); | |
| 626 | ✗ | int i = 0; | |
| 627 | |||
| 628 | ✗ | while (i < c_max && GET_CABAC(CU_CHROMA_QP_OFFSET_IDX_OFFSET)) | |
| 629 | ✗ | i++; | |
| 630 | |||
| 631 | ✗ | return i; | |
| 632 | } | ||
| 633 | |||
| 634 | 5301034 | int ff_hevc_pred_mode_decode(HEVCLocalContext *lc) | |
| 635 | { | ||
| 636 | 5301034 | return GET_CABAC(PRED_MODE_FLAG_OFFSET); | |
| 637 | } | ||
| 638 | |||
| 639 | 9259671 | int ff_hevc_split_coding_unit_flag_decode(HEVCLocalContext *lc, uint8_t *tab_ct_depth, | |
| 640 | const HEVCSPS *sps, | ||
| 641 | int ct_depth, int x0, int y0) | ||
| 642 | { | ||
| 643 | 9259671 | int inc = 0, depth_left = 0, depth_top = 0; | |
| 644 | 9259671 | int x0b = av_zero_extend(x0, sps->log2_ctb_size); | |
| 645 | 9259671 | int y0b = av_zero_extend(y0, sps->log2_ctb_size); | |
| 646 | 9259671 | int x_cb = x0 >> sps->log2_min_cb_size; | |
| 647 | 9259671 | int y_cb = y0 >> sps->log2_min_cb_size; | |
| 648 | |||
| 649 |
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9259671 | if (lc->ctb_left_flag || x0b) |
| 650 | 8905248 | depth_left = tab_ct_depth[(y_cb) * sps->min_cb_width + x_cb - 1]; | |
| 651 |
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9259671 | if (lc->ctb_up_flag || y0b) |
| 652 | 8572234 | depth_top = tab_ct_depth[(y_cb - 1) * sps->min_cb_width + x_cb]; | |
| 653 | |||
| 654 | 9259671 | inc += (depth_left > ct_depth); | |
| 655 | 9259671 | inc += (depth_top > ct_depth); | |
| 656 | |||
| 657 | 9259671 | return GET_CABAC(SPLIT_CODING_UNIT_FLAG_OFFSET + inc); | |
| 658 | } | ||
| 659 | |||
| 660 | 7535330 | int ff_hevc_part_mode_decode(HEVCLocalContext *lc, const HEVCSPS *sps, int log2_cb_size) | |
| 661 | { | ||
| 662 |
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7535330 | if (GET_CABAC(PART_MODE_OFFSET)) // 1 |
| 663 | 4683842 | return PART_2Nx2N; | |
| 664 |
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2851488 | if (log2_cb_size == sps->log2_min_cb_size) { |
| 665 |
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2107736 | if (lc->cu.pred_mode == MODE_INTRA) // 0 |
| 666 | 1332575 | return PART_NxN; | |
| 667 |
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775161 | if (GET_CABAC(PART_MODE_OFFSET + 1)) // 01 |
| 668 | 317747 | return PART_2NxN; | |
| 669 |
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457414 | if (log2_cb_size == 3) // 00 |
| 670 | 233272 | return PART_Nx2N; | |
| 671 |
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224142 | if (GET_CABAC(PART_MODE_OFFSET + 2)) // 001 |
| 672 | 115987 | return PART_Nx2N; | |
| 673 | 108155 | return PART_NxN; // 000 | |
| 674 | } | ||
| 675 | |||
| 676 |
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743752 | if (!sps->amp_enabled) { |
| 677 |
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138513 | if (GET_CABAC(PART_MODE_OFFSET + 1)) // 01 |
| 678 | 65613 | return PART_2NxN; | |
| 679 | 72900 | return PART_Nx2N; | |
| 680 | } | ||
| 681 | |||
| 682 |
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605239 | if (GET_CABAC(PART_MODE_OFFSET + 1)) { // 01X, 01XX |
| 683 |
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241410 | if (GET_CABAC(PART_MODE_OFFSET + 3)) // 011 |
| 684 | 115907 | return PART_2NxN; | |
| 685 |
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125503 | if (get_cabac_bypass(&lc->cc)) // 0101 |
| 686 | 58153 | return PART_2NxnD; | |
| 687 | 67350 | return PART_2NxnU; // 0100 | |
| 688 | } | ||
| 689 | |||
| 690 |
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363829 | if (GET_CABAC(PART_MODE_OFFSET + 3)) // 001 |
| 691 | 177705 | return PART_Nx2N; | |
| 692 |
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186124 | if (get_cabac_bypass(&lc->cc)) // 0001 |
| 693 | 85843 | return PART_nRx2N; | |
| 694 | 100281 | return PART_nLx2N; // 0000 | |
| 695 | } | ||
| 696 | |||
| 697 | 153183 | int ff_hevc_pcm_flag_decode(HEVCLocalContext *lc) | |
| 698 | { | ||
| 699 | 153183 | return get_cabac_terminate(&lc->cc); | |
| 700 | } | ||
| 701 | |||
| 702 | 8626139 | int ff_hevc_prev_intra_luma_pred_flag_decode(HEVCLocalContext *lc) | |
| 703 | { | ||
| 704 | 8626139 | return GET_CABAC(PREV_INTRA_LUMA_PRED_FLAG_OFFSET); | |
| 705 | } | ||
| 706 | |||
| 707 | 5171549 | int ff_hevc_mpm_idx_decode(HEVCLocalContext *lc) | |
| 708 | { | ||
| 709 | 5171549 | int i = 0; | |
| 710 |
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8789623 | while (i < 2 && get_cabac_bypass(&lc->cc)) |
| 711 | 3618074 | i++; | |
| 712 | 5171549 | return i; | |
| 713 | } | ||
| 714 | |||
| 715 | 3454590 | int ff_hevc_rem_intra_luma_pred_mode_decode(HEVCLocalContext *lc) | |
| 716 | { | ||
| 717 | int i; | ||
| 718 | 3454590 | int value = get_cabac_bypass(&lc->cc); | |
| 719 | |||
| 720 |
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17272950 | for (i = 0; i < 4; i++) |
| 721 | 13818360 | value = (value << 1) | get_cabac_bypass(&lc->cc); | |
| 722 | 3454590 | return value; | |
| 723 | } | ||
| 724 | |||
| 725 | 4729775 | int ff_hevc_intra_chroma_pred_mode_decode(HEVCLocalContext *lc) | |
| 726 | { | ||
| 727 | int ret; | ||
| 728 |
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4729775 | if (!GET_CABAC(INTRA_CHROMA_PRED_MODE_OFFSET)) |
| 729 | 3592525 | return 4; | |
| 730 | |||
| 731 | 1137250 | ret = get_cabac_bypass(&lc->cc) << 1; | |
| 732 | 1137250 | ret |= get_cabac_bypass(&lc->cc); | |
| 733 | 1137250 | return ret; | |
| 734 | } | ||
| 735 | |||
| 736 | 7424707 | int ff_hevc_merge_idx_decode(HEVCLocalContext *lc) | |
| 737 | { | ||
| 738 | 7424707 | int i = GET_CABAC(MERGE_IDX_OFFSET); | |
| 739 | |||
| 740 |
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7424707 | if (i != 0) { |
| 741 |
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4778112 | while (i < lc->parent->sh.max_num_merge_cand-1 && get_cabac_bypass(&lc->cc)) |
| 742 | 1821413 | i++; | |
| 743 | } | ||
| 744 | 7424707 | return i; | |
| 745 | } | ||
| 746 | |||
| 747 | 5769030 | int ff_hevc_merge_flag_decode(HEVCLocalContext *lc) | |
| 748 | { | ||
| 749 | 5769030 | return GET_CABAC(MERGE_FLAG_OFFSET); | |
| 750 | } | ||
| 751 | |||
| 752 | 1922844 | int ff_hevc_inter_pred_idc_decode(HEVCLocalContext *lc, int nPbW, int nPbH) | |
| 753 | { | ||
| 754 |
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1922844 | if (nPbW + nPbH == 12) |
| 755 | 248669 | return GET_CABAC(INTER_PRED_IDC_OFFSET + 4); | |
| 756 |
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1674175 | if (GET_CABAC(INTER_PRED_IDC_OFFSET + lc->ct_depth)) |
| 757 | 424925 | return PRED_BI; | |
| 758 | |||
| 759 | 1249250 | return GET_CABAC(INTER_PRED_IDC_OFFSET + 4); | |
| 760 | } | ||
| 761 | |||
| 762 | 3258002 | int ff_hevc_ref_idx_lx_decode(HEVCLocalContext *lc, int num_ref_idx_lx) | |
| 763 | { | ||
| 764 | 3258002 | int i = 0; | |
| 765 | 3258002 | int max = num_ref_idx_lx - 1; | |
| 766 | 3258002 | int max_ctx = FFMIN(max, 2); | |
| 767 | |||
| 768 |
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4256508 | while (i < max_ctx && GET_CABAC(REF_IDX_L0_OFFSET + i)) |
| 769 | 998506 | i++; | |
| 770 |
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3258002 | if (i == 2) { |
| 771 |
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290181 | while (i < max && get_cabac_bypass(&lc->cc)) |
| 772 | 86597 | i++; | |
| 773 | } | ||
| 774 | |||
| 775 | 3258002 | return i; | |
| 776 | } | ||
| 777 | |||
| 778 | 3258002 | int ff_hevc_mvp_lx_flag_decode(HEVCLocalContext *lc) | |
| 779 | { | ||
| 780 | 3258002 | return GET_CABAC(MVP_LX_FLAG_OFFSET); | |
| 781 | } | ||
| 782 | |||
| 783 | 2826655 | int ff_hevc_no_residual_syntax_flag_decode(HEVCLocalContext *lc) | |
| 784 | { | ||
| 785 | 2826655 | return GET_CABAC(NO_RESIDUAL_DATA_FLAG_OFFSET); | |
| 786 | } | ||
| 787 | |||
| 788 | 6188794 | static av_always_inline int abs_mvd_greater0_flag_decode(HEVCLocalContext *lc) | |
| 789 | { | ||
| 790 | 6188794 | return GET_CABAC(ABS_MVD_GREATER0_FLAG_OFFSET); | |
| 791 | } | ||
| 792 | |||
| 793 | 4273520 | static av_always_inline int abs_mvd_greater1_flag_decode(HEVCLocalContext *lc) | |
| 794 | { | ||
| 795 | 4273520 | return GET_CABAC(ABS_MVD_GREATER1_FLAG_OFFSET + 1); | |
| 796 | } | ||
| 797 | |||
| 798 | 3016742 | static av_always_inline int mvd_decode(HEVCLocalContext *lc) | |
| 799 | { | ||
| 800 | 3016742 | int ret = 2; | |
| 801 | 3016742 | int k = 1; | |
| 802 | |||
| 803 |
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7309751 | while (k < CABAC_MAX_BIN && get_cabac_bypass(&lc->cc)) { |
| 804 | 4293009 | ret += 1U << k; | |
| 805 | 4293009 | k++; | |
| 806 | } | ||
| 807 |
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3016742 | if (k == CABAC_MAX_BIN) { |
| 808 | ✗ | av_log(lc->logctx, AV_LOG_ERROR, "CABAC_MAX_BIN : %d\n", k); | |
| 809 | ✗ | return 0; | |
| 810 | } | ||
| 811 |
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10326493 | while (k--) |
| 812 | 7309751 | ret += get_cabac_bypass(&lc->cc) << k; | |
| 813 | 3016742 | return get_cabac_bypass_sign(&lc->cc, -ret); | |
| 814 | } | ||
| 815 | |||
| 816 | 1256778 | static av_always_inline int mvd_sign_flag_decode(HEVCLocalContext *lc) | |
| 817 | { | ||
| 818 | 1256778 | return get_cabac_bypass_sign(&lc->cc, -1); | |
| 819 | } | ||
| 820 | |||
| 821 | 7701444 | int ff_hevc_split_transform_flag_decode(HEVCLocalContext *lc, int log2_trafo_size) | |
| 822 | { | ||
| 823 | 7701444 | return GET_CABAC(SPLIT_TRANSFORM_FLAG_OFFSET + 5 - log2_trafo_size); | |
| 824 | } | ||
| 825 | |||
| 826 | 18136305 | int ff_hevc_cbf_cb_cr_decode(HEVCLocalContext *lc, int trafo_depth) | |
| 827 | { | ||
| 828 | 18136305 | return GET_CABAC(CBF_CB_CR_OFFSET + trafo_depth); | |
| 829 | } | ||
| 830 | |||
| 831 | 16591922 | int ff_hevc_cbf_luma_decode(HEVCLocalContext *lc, int trafo_depth) | |
| 832 | { | ||
| 833 |
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16591922 | return GET_CABAC(CBF_LUMA_OFFSET + !trafo_depth); |
| 834 | } | ||
| 835 | |||
| 836 | 7018276 | static int hevc_transform_skip_flag_decode(HEVCLocalContext *lc, int c_idx) | |
| 837 | { | ||
| 838 |
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7018276 | return GET_CABAC(TRANSFORM_SKIP_FLAG_OFFSET + !!c_idx); |
| 839 | } | ||
| 840 | |||
| 841 | 35234 | static int explicit_rdpcm_flag_decode(HEVCLocalContext *lc, int c_idx) | |
| 842 | { | ||
| 843 |
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35234 | return GET_CABAC(EXPLICIT_RDPCM_FLAG_OFFSET + !!c_idx); |
| 844 | } | ||
| 845 | |||
| 846 | 3090 | static int explicit_rdpcm_dir_flag_decode(HEVCLocalContext *lc, int c_idx) | |
| 847 | { | ||
| 848 |
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3090 | return GET_CABAC(EXPLICIT_RDPCM_DIR_FLAG_OFFSET + !!c_idx); |
| 849 | } | ||
| 850 | |||
| 851 | 384850 | int ff_hevc_log2_res_scale_abs(HEVCLocalContext *lc, int idx) | |
| 852 | { | ||
| 853 | 384850 | int i =0; | |
| 854 | |||
| 855 |
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1222592 | while (i < 4 && GET_CABAC(LOG2_RES_SCALE_ABS_OFFSET + 4 * idx + i)) |
| 856 | 837742 | i++; | |
| 857 | |||
| 858 | 384850 | return i; | |
| 859 | } | ||
| 860 | |||
| 861 | 235843 | int ff_hevc_res_scale_sign_flag(HEVCLocalContext *lc, int idx) | |
| 862 | { | ||
| 863 | 235843 | return GET_CABAC(RES_SCALE_SIGN_FLAG_OFFSET + idx); | |
| 864 | } | ||
| 865 | |||
| 866 | 16515668 | static av_always_inline void last_significant_coeff_xy_prefix_decode(HEVCLocalContext *lc, int c_idx, | |
| 867 | int log2_size, int *last_scx_prefix, int *last_scy_prefix) | ||
| 868 | { | ||
| 869 | 16515668 | int i = 0; | |
| 870 | 16515668 | int max = (log2_size << 1) - 1; | |
| 871 | int ctx_offset, ctx_shift; | ||
| 872 | |||
| 873 |
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16515668 | if (!c_idx) { |
| 874 | 11423835 | ctx_offset = 3 * (log2_size - 2) + ((log2_size - 1) >> 2); | |
| 875 | 11423835 | ctx_shift = (log2_size + 1) >> 2; | |
| 876 | } else { | ||
| 877 | 5091833 | ctx_offset = 15; | |
| 878 | 5091833 | ctx_shift = log2_size - 2; | |
| 879 | } | ||
| 880 |
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82597318 | while (i < max && |
| 881 | 40144337 | GET_CABAC(LAST_SIGNIFICANT_COEFF_X_PREFIX_OFFSET + (i >> ctx_shift) + ctx_offset)) | |
| 882 | 25937313 | i++; | |
| 883 | 16515668 | *last_scx_prefix = i; | |
| 884 | |||
| 885 | 16515668 | i = 0; | |
| 886 |
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71992749 | while (i < max && |
| 887 | 35087047 | GET_CABAC(LAST_SIGNIFICANT_COEFF_Y_PREFIX_OFFSET + (i >> ctx_shift) + ctx_offset)) | |
| 888 | 20390034 | i++; | |
| 889 | 16515668 | *last_scy_prefix = i; | |
| 890 | 16515668 | } | |
| 891 | |||
| 892 | 3660162 | static av_always_inline int last_significant_coeff_suffix_decode(HEVCLocalContext *lc, | |
| 893 | int last_significant_coeff_prefix) | ||
| 894 | { | ||
| 895 | int i; | ||
| 896 | 3660162 | int length = (last_significant_coeff_prefix >> 1) - 1; | |
| 897 | 3660162 | int value = get_cabac_bypass(&lc->cc); | |
| 898 | |||
| 899 |
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4680104 | for (i = 1; i < length; i++) |
| 900 | 1019942 | value = (value << 1) | get_cabac_bypass(&lc->cc); | |
| 901 | 3660162 | return value; | |
| 902 | } | ||
| 903 | |||
| 904 | 9598265 | static av_always_inline int significant_coeff_group_flag_decode(HEVCLocalContext *lc, int c_idx, int ctx_cg) | |
| 905 | { | ||
| 906 | int inc; | ||
| 907 | |||
| 908 |
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9598265 | inc = FFMIN(ctx_cg, 1) + (c_idx>0 ? 2 : 0); |
| 909 | |||
| 910 | 9598265 | return GET_CABAC(SIGNIFICANT_COEFF_GROUP_FLAG_OFFSET + inc); | |
| 911 | } | ||
| 912 | 195422078 | static av_always_inline int significant_coeff_flag_decode(HEVCLocalContext *lc, int n, | |
| 913 | int offset, const uint8_t *ctx_idx_map) | ||
| 914 | { | ||
| 915 | 195422078 | int inc = ctx_idx_map[n] + offset; | |
| 916 | 195422078 | return GET_CABAC(SIGNIFICANT_COEFF_FLAG_OFFSET + inc); | |
| 917 | } | ||
| 918 | |||
| 919 | 21178404 | static av_always_inline int significant_coeff_flag_decode_0(HEVCLocalContext *lc, int c_idx, int offset) | |
| 920 | { | ||
| 921 | 21178404 | return GET_CABAC(SIGNIFICANT_COEFF_FLAG_OFFSET + offset); | |
| 922 | } | ||
| 923 | |||
| 924 | 101593454 | static av_always_inline int coeff_abs_level_greater1_flag_decode(HEVCLocalContext *lc, int c_idx, int inc) | |
| 925 | { | ||
| 926 | |||
| 927 |
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101593454 | if (c_idx > 0) |
| 928 | 22531513 | inc += 16; | |
| 929 | |||
| 930 | 101593454 | return GET_CABAC(COEFF_ABS_LEVEL_GREATER1_FLAG_OFFSET + inc); | |
| 931 | } | ||
| 932 | |||
| 933 | 11127626 | static av_always_inline int coeff_abs_level_greater2_flag_decode(HEVCLocalContext *lc, int c_idx, int inc) | |
| 934 | { | ||
| 935 |
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11127626 | if (c_idx > 0) |
| 936 | 2252482 | inc += 4; | |
| 937 | |||
| 938 | 11127626 | return GET_CABAC(COEFF_ABS_LEVEL_GREATER2_FLAG_OFFSET + inc); | |
| 939 | } | ||
| 940 | |||
| 941 | /* a run of bypass bins is the quotient of the offset by range << 17 */ | ||
| 942 | 20983814 | static int cabac_bypass_bits(CABACContext *c, int n) | |
| 943 | { | ||
| 944 | 20983814 | int avail = CABAC_BITS - ff_ctz(c->low); | |
| 945 | 20983814 | uint64_t x, r = (uint64_t)c->range << (CABAC_BITS + 1); | |
| 946 | 20983814 | const uint8_t *bytestream = c->bytestream; | |
| 947 | |||
| 948 |
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20983814 | if (n < avail) { |
| 949 | 13087730 | x = (uint64_t)c->low << n; | |
| 950 | } else { | ||
| 951 | 7896084 | int fill = (bytestream[0] << 9) + (bytestream[1] << 1) - CABAC_MASK; | |
| 952 | |||
| 953 | 7896084 | x = (uint64_t)((((int64_t)c->low << avail) + fill)) << (n - avail); | |
| 954 | #if !UNCHECKED_BITSTREAM_READER | ||
| 955 |
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7896084 | if (bytestream < c->bytestream_end) |
| 956 | #endif | ||
| 957 | 7895893 | bytestream += CABAC_BITS / 8; | |
| 958 | } | ||
| 959 | |||
| 960 |
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20983814 | if (x < r << n) { |
| 961 | 20983814 | c->low = x % r; | |
| 962 | 20983814 | c->bytestream = bytestream; | |
| 963 | 20983814 | return x / r; | |
| 964 | } else { | ||
| 965 | ✗ | int ret = 0; | |
| 966 | |||
| 967 | ✗ | for (int i = 0; i < n; i++) | |
| 968 | ✗ | ret = (ret << 1) | get_cabac_bypass(c); | |
| 969 | ✗ | return ret; | |
| 970 | } | ||
| 971 | } | ||
| 972 | |||
| 973 | /* leading ones of the quotient, consumed only up to the first zero */ | ||
| 974 | 43782396 | static int cabac_unary_prefix(CABACContext *c, int max) | |
| 975 | { | ||
| 976 | 43782396 | int prefix = 0; | |
| 977 | |||
| 978 |
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50226499 | while (prefix < max) { |
| 979 | 50226499 | int avail = CABAC_BITS - ff_ctz(c->low); | |
| 980 | 50226499 | int n = FFMIN(avail - 1, max - prefix); | |
| 981 | 50226499 | uint64_t r = (uint64_t)c->range << (CABAC_BITS + 1); | |
| 982 | 50226499 | uint64_t x = (uint64_t)c->low << n; | |
| 983 | int q, t; | ||
| 984 | |||
| 985 |
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50226499 | if (n < 1 || x >= r << n) { |
| 986 |
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5959441 | if (!get_cabac_bypass(c)) |
| 987 | 2736490 | return prefix; | |
| 988 | 3222951 | prefix++; | |
| 989 | 3222951 | continue; | |
| 990 | } | ||
| 991 | |||
| 992 | 44267058 | q = x / r; | |
| 993 | 44267058 | t = ~q & ((1 << n) - 1); | |
| 994 |
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44267058 | if (t) { |
| 995 | 41045906 | int p = n - 1 - av_log2(t); | |
| 996 | 41045906 | int k = n - (p + 1); | |
| 997 | |||
| 998 | 41045906 | c->low = (x >> k) - ((uint64_t)(q >> k) * r); | |
| 999 | 41045906 | return prefix + p; | |
| 1000 | } | ||
| 1001 | 3221152 | c->low = x - (uint64_t)q * r; | |
| 1002 | 3221152 | prefix += n; | |
| 1003 | } | ||
| 1004 | ✗ | return prefix; | |
| 1005 | } | ||
| 1006 | |||
| 1007 | 43782396 | static av_always_inline int coeff_abs_level_remaining_decode(HEVCLocalContext *lc, int rc_rice_param) | |
| 1008 | { | ||
| 1009 | int prefix; | ||
| 1010 | 43782396 | int suffix = 0; | |
| 1011 | int last_coeff_abs_level_remaining; | ||
| 1012 | int i; | ||
| 1013 | |||
| 1014 | 43782396 | prefix = cabac_unary_prefix(&lc->cc, CABAC_MAX_BIN); | |
| 1015 | |||
| 1016 |
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43782396 | if (prefix < 3) { |
| 1017 |
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37471199 | if (rc_rice_param > 2) |
| 1018 | 4331194 | suffix = cabac_bypass_bits(&lc->cc, rc_rice_param); | |
| 1019 | else | ||
| 1020 |
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55278536 | for (i = 0; i < rc_rice_param; i++) |
| 1021 | 22138531 | suffix = (suffix << 1) | get_cabac_bypass(&lc->cc); | |
| 1022 | 37471199 | last_coeff_abs_level_remaining = (prefix << rc_rice_param) + suffix; | |
| 1023 | } else { | ||
| 1024 | 6311197 | int prefix_minus3 = prefix - 3; | |
| 1025 | int k; | ||
| 1026 | |||
| 1027 |
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6311197 | if (prefix == CABAC_MAX_BIN || prefix_minus3 + rc_rice_param > 16 + 6) { |
| 1028 | ✗ | av_log(lc->logctx, AV_LOG_ERROR, "CABAC_MAX_BIN : %d\n", prefix); | |
| 1029 | ✗ | return 0; | |
| 1030 | } | ||
| 1031 | |||
| 1032 | 6311197 | k = prefix_minus3 + rc_rice_param; | |
| 1033 |
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6311197 | if (k > 16) { |
| 1034 | ✗ | suffix = cabac_bypass_bits(&lc->cc, 16) << (k - 16); | |
| 1035 | ✗ | suffix |= cabac_bypass_bits(&lc->cc, k - 16); | |
| 1036 |
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6311197 | } else if (k > 2) { |
| 1037 | 2866155 | suffix = cabac_bypass_bits(&lc->cc, k); | |
| 1038 | } else { | ||
| 1039 |
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6833308 | for (i = 0; i < k; i++) |
| 1040 | 3388266 | suffix = (suffix << 1) | get_cabac_bypass(&lc->cc); | |
| 1041 | } | ||
| 1042 | 6311197 | last_coeff_abs_level_remaining = (((1 << prefix_minus3) + 3 - 1) | |
| 1043 | 6311197 | << rc_rice_param) + suffix; | |
| 1044 | } | ||
| 1045 | 43782396 | return last_coeff_abs_level_remaining; | |
| 1046 | } | ||
| 1047 | |||
| 1048 | 25135920 | static av_always_inline int coeff_sign_flag_decode(HEVCLocalContext *lc, uint8_t nb) | |
| 1049 | { | ||
| 1050 | int i; | ||
| 1051 | 25135920 | int ret = 0; | |
| 1052 | |||
| 1053 |
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25135920 | if (nb > 2) |
| 1054 | 13786465 | return cabac_bypass_bits(&lc->cc, nb); | |
| 1055 | |||
| 1056 |
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27370176 | for (i = 0; i < nb; i++) |
| 1057 | 16020721 | ret = (ret << 1) | get_cabac_bypass(&lc->cc); | |
| 1058 | 11349455 | return ret; | |
| 1059 | } | ||
| 1060 | |||
| 1061 | 16515668 | void ff_hevc_hls_residual_coding(HEVCLocalContext *lc, const HEVCPPS *pps, | |
| 1062 | int x0, int y0, | ||
| 1063 | int log2_trafo_size, enum ScanType scan_idx, | ||
| 1064 | int c_idx) | ||
| 1065 | { | ||
| 1066 | #define GET_COORD(offset, n) \ | ||
| 1067 | do { \ | ||
| 1068 | x_c = (x_cg << 2) + scan_x_off[n]; \ | ||
| 1069 | y_c = (y_cg << 2) + scan_y_off[n]; \ | ||
| 1070 | } while (0) | ||
| 1071 | 16515668 | const HEVCContext *const s = lc->parent; | |
| 1072 | 16515668 | const HEVCSPS *const sps = pps->sps; | |
| 1073 | 16515668 | int transform_skip_flag = 0; | |
| 1074 | |||
| 1075 | int last_significant_coeff_x, last_significant_coeff_y; | ||
| 1076 | int last_scan_pos; | ||
| 1077 | int n_end; | ||
| 1078 | 16515668 | int num_coeff = 0; | |
| 1079 | 16515668 | int greater1_ctx = 1; | |
| 1080 | |||
| 1081 | int num_last_subset; | ||
| 1082 | int max_xy, col_limit, clear_rows; | ||
| 1083 | int x_cg_last_sig, y_cg_last_sig; | ||
| 1084 | |||
| 1085 | const uint8_t *scan_x_cg, *scan_y_cg, *scan_x_off, *scan_y_off; | ||
| 1086 | |||
| 1087 | 16515668 | ptrdiff_t stride = s->cur_frame->f->linesize[c_idx]; | |
| 1088 | 16515668 | int hshift = sps->hshift[c_idx]; | |
| 1089 | 16515668 | int vshift = sps->vshift[c_idx]; | |
| 1090 | 16515668 | uint8_t *dst = &s->cur_frame->f->data[c_idx][(y0 >> vshift) * stride + | |
| 1091 | 16515668 | ((x0 >> hshift) << sps->pixel_shift)]; | |
| 1092 |
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16515668 | int16_t *coeffs = (int16_t*)(c_idx ? lc->edge_emu_buffer2 : lc->edge_emu_buffer); |
| 1093 | 16515668 | uint8_t significant_coeff_group_flag[8][8] = {{0}}; | |
| 1094 | 16515668 | int explicit_rdpcm_flag = 0; | |
| 1095 | int explicit_rdpcm_dir_flag; | ||
| 1096 | |||
| 1097 | 16515668 | int trafo_size = 1 << log2_trafo_size; | |
| 1098 | int i; | ||
| 1099 | int qp,shift,add,scale,scale_m; | ||
| 1100 | static const uint8_t level_scale[] = { 40, 45, 51, 57, 64, 72 }; | ||
| 1101 | 16515668 | const uint8_t *scale_matrix = NULL; | |
| 1102 | uint8_t dc_scale; | ||
| 1103 |
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16515668 | int pred_mode_intra = (c_idx == 0) ? lc->tu.intra_pred_mode : |
| 1104 | lc->tu.intra_pred_mode_c; | ||
| 1105 | |||
| 1106 | // Derive QP for dequant | ||
| 1107 |
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16515668 | if (!lc->cu.cu_transquant_bypass_flag) { |
| 1108 | static const int qp_c[] = { 29, 30, 31, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37 }; | ||
| 1109 | static const uint8_t rem6[51 + 4 * 6 + 1] = { | ||
| 1110 | 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, | ||
| 1111 | 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, | ||
| 1112 | 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, | ||
| 1113 | 4, 5, 0, 1, 2, 3, 4, 5, 0, 1 | ||
| 1114 | }; | ||
| 1115 | |||
| 1116 | static const uint8_t div6[51 + 4 * 6 + 1] = { | ||
| 1117 | 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, | ||
| 1118 | 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, | ||
| 1119 | 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, | ||
| 1120 | 10, 10, 11, 11, 11, 11, 11, 11, 12, 12 | ||
| 1121 | }; | ||
| 1122 | 16018156 | int qp_y = lc->qp_y; | |
| 1123 | |||
| 1124 |
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16018156 | if (pps->transform_skip_enabled_flag && |
| 1125 |
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12356527 | log2_trafo_size <= pps->log2_max_transform_skip_block_size) { |
| 1126 | 7018276 | transform_skip_flag = hevc_transform_skip_flag_decode(lc, c_idx); | |
| 1127 | } | ||
| 1128 | |||
| 1129 |
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16018156 | if (c_idx == 0) { |
| 1130 | 11113420 | qp = qp_y + sps->qp_bd_offset; | |
| 1131 | } else { | ||
| 1132 | int qp_i, offset; | ||
| 1133 | |||
| 1134 |
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4904736 | if (c_idx == 1) |
| 1135 | 2386888 | offset = pps->cb_qp_offset + s->sh.slice_cb_qp_offset + | |
| 1136 | 2386888 | lc->tu.cu_qp_offset_cb; | |
| 1137 | else | ||
| 1138 | 2517848 | offset = pps->cr_qp_offset + s->sh.slice_cr_qp_offset + | |
| 1139 | 2517848 | lc->tu.cu_qp_offset_cr; | |
| 1140 | |||
| 1141 | 4904736 | qp_i = av_clip(qp_y + offset, - sps->qp_bd_offset, 57); | |
| 1142 |
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4904736 | if (sps->chroma_format_idc == 1) { |
| 1143 |
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3038631 | if (qp_i < 30) |
| 1144 | 1164618 | qp = qp_i; | |
| 1145 |
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1874013 | else if (qp_i > 43) |
| 1146 | 13523 | qp = qp_i - 6; | |
| 1147 | else | ||
| 1148 | 1860490 | qp = qp_c[qp_i - 30]; | |
| 1149 | } else { | ||
| 1150 |
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1866105 | if (qp_i > 51) |
| 1151 | ✗ | qp = 51; | |
| 1152 | else | ||
| 1153 | 1866105 | qp = qp_i; | |
| 1154 | } | ||
| 1155 | |||
| 1156 | 4904736 | qp += sps->qp_bd_offset; | |
| 1157 | } | ||
| 1158 | |||
| 1159 | 16018156 | shift = sps->bit_depth + log2_trafo_size - 5; | |
| 1160 | 16018156 | add = 1 << (shift-1); | |
| 1161 | 16018156 | scale = level_scale[rem6[qp]] << (div6[qp]); | |
| 1162 | 16018156 | scale_m = 16; // default when no custom scaling lists. | |
| 1163 | 16018156 | dc_scale = 16; | |
| 1164 | |||
| 1165 |
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|
16018156 | if (sps->scaling_list_enabled && !(transform_skip_flag && log2_trafo_size > 2)) { |
| 1166 | 1463828 | const ScalingList *sl = pps->scaling_list_data_present_flag ? | |
| 1167 |
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731914 | &pps->scaling_list : &sps->scaling_list; |
| 1168 | 731914 | int matrix_id = lc->cu.pred_mode != MODE_INTRA; | |
| 1169 | |||
| 1170 | 731914 | matrix_id = 3 * matrix_id + c_idx; | |
| 1171 | |||
| 1172 | 731914 | scale_matrix = sl->sl[log2_trafo_size - 2][matrix_id]; | |
| 1173 |
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731914 | if (log2_trafo_size >= 4) |
| 1174 | 125713 | dc_scale = sl->sl_dc[log2_trafo_size - 4][matrix_id]; | |
| 1175 | } | ||
| 1176 | } else { | ||
| 1177 | 497512 | shift = 0; | |
| 1178 | 497512 | add = 0; | |
| 1179 | 497512 | scale = 0; | |
| 1180 | 497512 | dc_scale = 0; | |
| 1181 | } | ||
| 1182 | |||
| 1183 |
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|
16515668 | if (lc->cu.pred_mode == MODE_INTER && sps->explicit_rdpcm_enabled && |
| 1184 |
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190277 | (transform_skip_flag || lc->cu.cu_transquant_bypass_flag)) { |
| 1185 | 35234 | explicit_rdpcm_flag = explicit_rdpcm_flag_decode(lc, c_idx); | |
| 1186 |
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35234 | if (explicit_rdpcm_flag) { |
| 1187 | 3090 | explicit_rdpcm_dir_flag = explicit_rdpcm_dir_flag_decode(lc, c_idx); | |
| 1188 | } | ||
| 1189 | } | ||
| 1190 | |||
| 1191 | 16515668 | last_significant_coeff_xy_prefix_decode(lc, c_idx, log2_trafo_size, | |
| 1192 | &last_significant_coeff_x, &last_significant_coeff_y); | ||
| 1193 | |||
| 1194 |
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16515668 | if (last_significant_coeff_x > 3) { |
| 1195 | 2122973 | int suffix = last_significant_coeff_suffix_decode(lc, last_significant_coeff_x); | |
| 1196 | 2122973 | last_significant_coeff_x = (1 << ((last_significant_coeff_x >> 1) - 1)) * | |
| 1197 | 2122973 | (2 + (last_significant_coeff_x & 1)) + | |
| 1198 | suffix; | ||
| 1199 | } | ||
| 1200 | |||
| 1201 |
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16515668 | if (last_significant_coeff_y > 3) { |
| 1202 | 1537189 | int suffix = last_significant_coeff_suffix_decode(lc, last_significant_coeff_y); | |
| 1203 | 1537189 | last_significant_coeff_y = (1 << ((last_significant_coeff_y >> 1) - 1)) * | |
| 1204 | 1537189 | (2 + (last_significant_coeff_y & 1)) + | |
| 1205 | suffix; | ||
| 1206 | } | ||
| 1207 | |||
| 1208 |
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16515668 | if (scan_idx == SCAN_VERT) |
| 1209 | 2037197 | FFSWAP(int, last_significant_coeff_x, last_significant_coeff_y); | |
| 1210 | |||
| 1211 | 16515668 | x_cg_last_sig = last_significant_coeff_x >> 2; | |
| 1212 | 16515668 | y_cg_last_sig = last_significant_coeff_y >> 2; | |
| 1213 | |||
| 1214 |
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16515668 | switch (scan_idx) { |
| 1215 | 12192118 | case SCAN_DIAG: { | |
| 1216 | 12192118 | int last_x_c = last_significant_coeff_x & 3; | |
| 1217 | 12192118 | int last_y_c = last_significant_coeff_y & 3; | |
| 1218 | |||
| 1219 | 12192118 | scan_x_off = ff_hevc_diag_scan4x4_x; | |
| 1220 | 12192118 | scan_y_off = ff_hevc_diag_scan4x4_y; | |
| 1221 | 12192118 | num_coeff = diag_scan4x4_inv[last_y_c][last_x_c]; | |
| 1222 |
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12192118 | if (trafo_size == 4) { |
| 1223 | 5714514 | scan_x_cg = scan_1x1; | |
| 1224 | 5714514 | scan_y_cg = scan_1x1; | |
| 1225 |
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6477604 | } else if (trafo_size == 8) { |
| 1226 | 3358624 | num_coeff += diag_scan2x2_inv[y_cg_last_sig][x_cg_last_sig] << 4; | |
| 1227 | 3358624 | scan_x_cg = diag_scan2x2_x; | |
| 1228 | 3358624 | scan_y_cg = diag_scan2x2_y; | |
| 1229 |
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3118980 | } else if (trafo_size == 16) { |
| 1230 | 2274426 | num_coeff += diag_scan4x4_inv[y_cg_last_sig][x_cg_last_sig] << 4; | |
| 1231 | 2274426 | scan_x_cg = ff_hevc_diag_scan4x4_x; | |
| 1232 | 2274426 | scan_y_cg = ff_hevc_diag_scan4x4_y; | |
| 1233 | } else { // trafo_size == 32 | ||
| 1234 | 844554 | num_coeff += diag_scan8x8_inv[y_cg_last_sig][x_cg_last_sig] << 4; | |
| 1235 | 844554 | scan_x_cg = ff_hevc_diag_scan8x8_x; | |
| 1236 | 844554 | scan_y_cg = ff_hevc_diag_scan8x8_y; | |
| 1237 | } | ||
| 1238 | 12192118 | break; | |
| 1239 | } | ||
| 1240 | 2286353 | case SCAN_HORIZ: | |
| 1241 | 2286353 | scan_x_cg = horiz_scan2x2_x; | |
| 1242 | 2286353 | scan_y_cg = horiz_scan2x2_y; | |
| 1243 | 2286353 | scan_x_off = horiz_scan4x4_x; | |
| 1244 | 2286353 | scan_y_off = horiz_scan4x4_y; | |
| 1245 | 2286353 | num_coeff = horiz_scan8x8_inv[last_significant_coeff_y][last_significant_coeff_x]; | |
| 1246 | 2286353 | break; | |
| 1247 | 2037197 | default: //SCAN_VERT | |
| 1248 | 2037197 | scan_x_cg = horiz_scan2x2_y; | |
| 1249 | 2037197 | scan_y_cg = horiz_scan2x2_x; | |
| 1250 | 2037197 | scan_x_off = horiz_scan4x4_y; | |
| 1251 | 2037197 | scan_y_off = horiz_scan4x4_x; | |
| 1252 | 2037197 | num_coeff = horiz_scan8x8_inv[last_significant_coeff_x][last_significant_coeff_y]; | |
| 1253 | 2037197 | break; | |
| 1254 | } | ||
| 1255 | 16515668 | num_coeff++; | |
| 1256 | 16515668 | num_last_subset = (num_coeff - 1) >> 4; | |
| 1257 | |||
| 1258 | 16515668 | max_xy = FFMAX(last_significant_coeff_x, last_significant_coeff_y); | |
| 1259 | 16515668 | col_limit = last_significant_coeff_x + last_significant_coeff_y + 4; | |
| 1260 |
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16515668 | if (max_xy < 4) |
| 1261 | 13692160 | col_limit = FFMIN(4, col_limit); | |
| 1262 |
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2823508 | else if (max_xy < 8) |
| 1263 | 2094325 | col_limit = FFMIN(8, col_limit); | |
| 1264 |
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729183 | else if (max_xy < 12) |
| 1265 | 332927 | col_limit = FFMIN(24, col_limit); | |
| 1266 | |||
| 1267 | // idct_dc reads coeffs[0] only and writes the whole block: no clear needed | ||
| 1268 | 16515668 | clear_rows = trafo_size; | |
| 1269 |
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16515668 | if (!lc->cu.cu_transquant_bypass_flag && !transform_skip_flag && |
| 1270 |
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15573854 | !(lc->cu.pred_mode == MODE_INTRA && c_idx == 0 && log2_trafo_size == 2)) { |
| 1271 |
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11547005 | if (max_xy == 0) |
| 1272 | 2806198 | clear_rows = 0; | |
| 1273 | } | ||
| 1274 |
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16515668 | if (clear_rows) |
| 1275 | 13709470 | memset(coeffs, 0, clear_rows * trafo_size * sizeof(int16_t)); | |
| 1276 | |||
| 1277 |
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45453109 | for (i = num_last_subset; i >= 0; i--) { |
| 1278 | int n, m; | ||
| 1279 | int x_cg, y_cg, x_c, y_c, pos; | ||
| 1280 | 28937441 | int implicit_non_zero_coeff = 0; | |
| 1281 | int64_t trans_coeff_level; | ||
| 1282 | 28937441 | int prev_sig = 0; | |
| 1283 | 28937441 | int offset = i << 4; | |
| 1284 | 28937441 | int rice_init = 0; | |
| 1285 | |||
| 1286 | uint8_t significant_coeff_flag_idx[16]; | ||
| 1287 | 28937441 | uint8_t nb_significant_coeff_flag = 0; | |
| 1288 | |||
| 1289 | 28937441 | x_cg = scan_x_cg[i]; | |
| 1290 | 28937441 | y_cg = scan_y_cg[i]; | |
| 1291 | |||
| 1292 |
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28937441 | if ((i < num_last_subset) && (i > 0)) { |
| 1293 | 9598265 | int ctx_cg = 0; | |
| 1294 |
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9598265 | if (x_cg < (1 << (log2_trafo_size - 2)) - 1) |
| 1295 | 8833998 | ctx_cg += significant_coeff_group_flag[x_cg + 1][y_cg]; | |
| 1296 |
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9598265 | if (y_cg < (1 << (log2_trafo_size - 2)) - 1) |
| 1297 | 8141690 | ctx_cg += significant_coeff_group_flag[x_cg][y_cg + 1]; | |
| 1298 | |||
| 1299 | 9598265 | significant_coeff_group_flag[x_cg][y_cg] = | |
| 1300 | 9598265 | significant_coeff_group_flag_decode(lc, c_idx, ctx_cg); | |
| 1301 | 9598265 | implicit_non_zero_coeff = 1; | |
| 1302 | } else { | ||
| 1303 | 19339176 | significant_coeff_group_flag[x_cg][y_cg] = | |
| 1304 |
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22162684 | ((x_cg == x_cg_last_sig && y_cg == y_cg_last_sig) || |
| 1305 |
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2823508 | (x_cg == 0 && y_cg == 0)); |
| 1306 | } | ||
| 1307 | |||
| 1308 | 28937441 | last_scan_pos = num_coeff - offset - 1; | |
| 1309 | |||
| 1310 |
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28937441 | if (i == num_last_subset) { |
| 1311 | 16515668 | n_end = last_scan_pos - 1; | |
| 1312 | 16515668 | significant_coeff_flag_idx[0] = last_scan_pos; | |
| 1313 | 16515668 | nb_significant_coeff_flag = 1; | |
| 1314 | } else { | ||
| 1315 | 12421773 | n_end = 15; | |
| 1316 | } | ||
| 1317 | |||
| 1318 |
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28937441 | if (x_cg < ((1 << log2_trafo_size) - 1) >> 2) |
| 1319 | 18037884 | prev_sig = !!significant_coeff_group_flag[x_cg + 1][y_cg]; | |
| 1320 |
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28937441 | if (y_cg < ((1 << log2_trafo_size) - 1) >> 2) |
| 1321 |
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17502768 | prev_sig += (!!significant_coeff_group_flag[x_cg][y_cg + 1] << 1); |
| 1322 | |||
| 1323 |
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28937441 | if (significant_coeff_group_flag[x_cg][y_cg] && n_end >= 0) { |
| 1324 | // ctx_idx_map composed with the intra-CG scan, indexed by scan position | ||
| 1325 | static const uint8_t ctx_idx_map[3][5 * 16] = { | ||
| 1326 | { // SCAN_DIAG | ||
| 1327 | 0, 2, 1, 6, 3, 4, 7, 6, 4, 5, 7, 8, 5, 8, 8, 8, // log2_trafo_size == 2 | ||
| 1328 | 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // prev_sig == 0 | ||
| 1329 | 2, 1, 2, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 0, 0, 0, // prev_sig == 1 | ||
| 1330 | 2, 2, 1, 2, 1, 0, 2, 1, 0, 0, 1, 0, 0, 0, 0, 0, // prev_sig == 2 | ||
| 1331 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // default | ||
| 1332 | }, | ||
| 1333 | { // SCAN_HORIZ | ||
| 1334 | 0, 1, 4, 5, 2, 3, 4, 5, 6, 6, 8, 8, 7, 7, 8, 8, | ||
| 1335 | 1, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, | ||
| 1336 | 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, | ||
| 1337 | 2, 1, 0, 0, 2, 1, 0, 0, 2, 1, 0, 0, 2, 1, 0, 0, | ||
| 1338 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | ||
| 1339 | }, | ||
| 1340 | { // SCAN_VERT | ||
| 1341 | 0, 2, 6, 7, 1, 3, 6, 7, 4, 4, 8, 8, 5, 5, 8, 8, | ||
| 1342 | 1, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, | ||
| 1343 | 2, 1, 0, 0, 2, 1, 0, 0, 2, 1, 0, 0, 2, 1, 0, 0, | ||
| 1344 | 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, | ||
| 1345 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | ||
| 1346 | }, | ||
| 1347 | }; | ||
| 1348 | const uint8_t *ctx_idx_map_p; | ||
| 1349 | 21273499 | int scf_offset = 0; | |
| 1350 | int nb0; | ||
| 1351 |
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21273499 | if (sps->transform_skip_context_enabled && |
| 1352 |
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886760 | (transform_skip_flag || lc->cu.cu_transquant_bypass_flag)) { |
| 1353 | 130311 | ctx_idx_map_p = &ctx_idx_map[scan_idx][4 * 16]; | |
| 1354 |
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130311 | if (c_idx == 0) { |
| 1355 | 61311 | scf_offset = 40; | |
| 1356 | } else { | ||
| 1357 | 69000 | scf_offset = 14 + 27; | |
| 1358 | } | ||
| 1359 | } else { | ||
| 1360 |
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21143188 | if (c_idx != 0) |
| 1361 | 4665815 | scf_offset = 27; | |
| 1362 |
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21143188 | if (log2_trafo_size == 2) { |
| 1363 | 6926383 | ctx_idx_map_p = &ctx_idx_map[scan_idx][0]; | |
| 1364 | } else { | ||
| 1365 | 14216805 | ctx_idx_map_p = &ctx_idx_map[scan_idx][(prev_sig + 1) << 4]; | |
| 1366 |
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14216805 | if (c_idx == 0) { |
| 1367 |
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11693420 | if ((x_cg > 0 || y_cg > 0)) |
| 1368 | 6947160 | scf_offset += 3; | |
| 1369 |
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11693420 | if (log2_trafo_size == 3) { |
| 1370 |
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4247313 | scf_offset += (scan_idx == SCAN_DIAG) ? 9 : 15; |
| 1371 | } else { | ||
| 1372 | 7446107 | scf_offset += 21; | |
| 1373 | } | ||
| 1374 | } else { | ||
| 1375 |
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2523385 | if (log2_trafo_size == 3) |
| 1376 | 1205954 | scf_offset += 9; | |
| 1377 | else | ||
| 1378 | 1317431 | scf_offset += 12; | |
| 1379 | } | ||
| 1380 | } | ||
| 1381 | } | ||
| 1382 | // the flag is a fresh bin: store always, advance conditionally | ||
| 1383 | 21273499 | nb0 = nb_significant_coeff_flag; | |
| 1384 |
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216695577 | for (n = n_end; n > 0; n--) { |
| 1385 | 195422078 | int sig = significant_coeff_flag_decode(lc, n, scf_offset, ctx_idx_map_p); | |
| 1386 | 195422078 | significant_coeff_flag_idx[nb_significant_coeff_flag] = n; | |
| 1387 | 195422078 | nb_significant_coeff_flag += sig; | |
| 1388 | } | ||
| 1389 |
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21273499 | if (nb_significant_coeff_flag != nb0) |
| 1390 | 17204811 | implicit_non_zero_coeff = 0; | |
| 1391 |
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21273499 | if (implicit_non_zero_coeff == 0) { |
| 1392 |
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21178404 | if (sps->transform_skip_context_enabled && |
| 1393 |
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884736 | (transform_skip_flag || lc->cu.cu_transquant_bypass_flag)) { |
| 1394 |
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129917 | if (c_idx == 0) { |
| 1395 | 61056 | scf_offset = 42; | |
| 1396 | } else { | ||
| 1397 | 68861 | scf_offset = 16 + 27; | |
| 1398 | } | ||
| 1399 | } else { | ||
| 1400 |
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21048487 | if (i == 0) { |
| 1401 |
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12857330 | if (c_idx == 0) |
| 1402 | 9530213 | scf_offset = 0; | |
| 1403 | else | ||
| 1404 | 3327117 | scf_offset = 27; | |
| 1405 | } else { | ||
| 1406 | 8191157 | scf_offset = 2 + scf_offset; | |
| 1407 | } | ||
| 1408 | } | ||
| 1409 | 21178404 | significant_coeff_flag_idx[nb_significant_coeff_flag] = 0; | |
| 1410 | 21178404 | nb_significant_coeff_flag += | |
| 1411 | 21178404 | significant_coeff_flag_decode_0(lc, c_idx, scf_offset); | |
| 1412 | } else { | ||
| 1413 | 95095 | significant_coeff_flag_idx[nb_significant_coeff_flag] = 0; | |
| 1414 | 95095 | nb_significant_coeff_flag++; | |
| 1415 | } | ||
| 1416 | } | ||
| 1417 | |||
| 1418 | 28937441 | n_end = nb_significant_coeff_flag; | |
| 1419 | |||
| 1420 | |||
| 1421 |
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28937441 | if (n_end) { |
| 1422 | int first_nz_pos_in_cg; | ||
| 1423 | int last_nz_pos_in_cg; | ||
| 1424 | 25135920 | int c_rice_param = 0; | |
| 1425 | 25135920 | int first_greater1_coeff_idx = -1; | |
| 1426 | uint8_t coeff_abs_level_greater1_flag[8]; | ||
| 1427 | uint16_t coeff_sign_flag; | ||
| 1428 | 25135920 | int sum_abs = 0; | |
| 1429 | int sign_hidden; | ||
| 1430 | int sb_type; | ||
| 1431 | 25135920 | int gt1_mask = 0; | |
| 1432 | |||
| 1433 | |||
| 1434 | // initialize first elem of coeff_bas_level_greater1_flag | ||
| 1435 |
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25135920 | int ctx_set = (i > 0 && c_idx == 0) ? 2 : 0; |
| 1436 | |||
| 1437 |
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25135920 | if (sps->persistent_rice_adaptation_enabled) { |
| 1438 |
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1166629 | if (!transform_skip_flag && !lc->cu.cu_transquant_bypass_flag) |
| 1439 |
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1047040 | sb_type = 2 * (c_idx == 0 ? 1 : 0); |
| 1440 | else | ||
| 1441 |
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119589 | sb_type = 2 * (c_idx == 0 ? 1 : 0) + 1; |
| 1442 | 1166629 | c_rice_param = lc->stat_coeff[sb_type] / 4; | |
| 1443 | } | ||
| 1444 | |||
| 1445 |
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25135920 | if (!(i == num_last_subset) && greater1_ctx == 0) |
| 1446 | 3536549 | ctx_set++; | |
| 1447 | 25135920 | greater1_ctx = 1; | |
| 1448 | 25135920 | last_nz_pos_in_cg = significant_coeff_flag_idx[0]; | |
| 1449 | |||
| 1450 | // fresh bins: branchless context update, first set index from the mask | ||
| 1451 |
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126729374 | for (m = 0; m < (n_end > 8 ? 8 : n_end); m++) { |
| 1452 | 101593454 | int inc = (ctx_set << 2) + greater1_ctx; | |
| 1453 | 101593454 | int flag = coeff_abs_level_greater1_flag_decode(lc, c_idx, inc); | |
| 1454 | 101593454 | coeff_abs_level_greater1_flag[m] = flag; | |
| 1455 | 101593454 | gt1_mask |= flag << m; | |
| 1456 | 101593454 | greater1_ctx = (greater1_ctx + (greater1_ctx - 1U < 2)) & (flag - 1); | |
| 1457 | } | ||
| 1458 |
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25135920 | if (gt1_mask) |
| 1459 | 11127626 | first_greater1_coeff_idx = ff_ctz(gt1_mask); | |
| 1460 | 25135920 | first_nz_pos_in_cg = significant_coeff_flag_idx[n_end - 1]; | |
| 1461 | |||
| 1462 |
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25135920 | if (lc->cu.cu_transquant_bypass_flag || |
| 1463 |
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24339373 | (lc->cu.pred_mode == MODE_INTRA && |
| 1464 |
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|
15137174 | sps->implicit_rdpcm_enabled && transform_skip_flag && |
| 1465 |
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|
24294318 | (pred_mode_intra == 10 || pred_mode_intra == 26 )) || |
| 1466 | explicit_rdpcm_flag) | ||
| 1467 | 866600 | sign_hidden = 0; | |
| 1468 | else | ||
| 1469 | 24269320 | sign_hidden = (last_nz_pos_in_cg - first_nz_pos_in_cg >= 4); | |
| 1470 | |||
| 1471 |
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25135920 | if (first_greater1_coeff_idx != -1) { |
| 1472 | 11127626 | coeff_abs_level_greater1_flag[first_greater1_coeff_idx] += coeff_abs_level_greater2_flag_decode(lc, c_idx, ctx_set); | |
| 1473 | } | ||
| 1474 |
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25135920 | if (!pps->sign_data_hiding_flag || !sign_hidden ) { |
| 1475 | 13573889 | coeff_sign_flag = coeff_sign_flag_decode(lc, nb_significant_coeff_flag) << (16 - nb_significant_coeff_flag); | |
| 1476 | } else { | ||
| 1477 | 11562031 | coeff_sign_flag = coeff_sign_flag_decode(lc, nb_significant_coeff_flag - 1) << (16 - (nb_significant_coeff_flag - 1)); | |
| 1478 | } | ||
| 1479 | |||
| 1480 |
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145825400 | for (m = 0; m < n_end; m++) { |
| 1481 | int64_t sign; | ||
| 1482 | |||
| 1483 | 120689480 | n = significant_coeff_flag_idx[m]; | |
| 1484 | 120689480 | GET_COORD(offset, n); | |
| 1485 |
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120689480 | if (m < 8) { |
| 1486 | 101593454 | trans_coeff_level = 1 + coeff_abs_level_greater1_flag[m]; | |
| 1487 |
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101593454 | if (trans_coeff_level == ((m == first_greater1_coeff_idx) ? 3 : 2)) { |
| 1488 | 24686370 | int last_coeff_abs_level_remaining = coeff_abs_level_remaining_decode(lc, c_rice_param); | |
| 1489 | |||
| 1490 | 24686370 | trans_coeff_level += last_coeff_abs_level_remaining; | |
| 1491 |
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24686370 | if (trans_coeff_level > (3 << c_rice_param)) |
| 1492 |
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6388251 | c_rice_param = sps->persistent_rice_adaptation_enabled ? c_rice_param + 1 : FFMIN(c_rice_param + 1, 4); |
| 1493 |
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24686370 | if (sps->persistent_rice_adaptation_enabled && !rice_init) { |
| 1494 | 315677 | int c_rice_p_init = lc->stat_coeff[sb_type] / 4; | |
| 1495 |
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315677 | if (last_coeff_abs_level_remaining >= (3 << c_rice_p_init)) |
| 1496 | 37785 | lc->stat_coeff[sb_type]++; | |
| 1497 |
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277892 | else if (2 * last_coeff_abs_level_remaining < (1 << c_rice_p_init)) |
| 1498 |
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157067 | if (lc->stat_coeff[sb_type] > 0) |
| 1499 | 37744 | lc->stat_coeff[sb_type]--; | |
| 1500 | 315677 | rice_init = 1; | |
| 1501 | } | ||
| 1502 | } | ||
| 1503 | } else { | ||
| 1504 | 19096026 | int last_coeff_abs_level_remaining = coeff_abs_level_remaining_decode(lc, c_rice_param); | |
| 1505 | |||
| 1506 | 19096026 | trans_coeff_level = 1 + last_coeff_abs_level_remaining; | |
| 1507 |
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19096026 | if (trans_coeff_level > (3 << c_rice_param)) |
| 1508 |
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2375876 | c_rice_param = sps->persistent_rice_adaptation_enabled ? c_rice_param + 1 : FFMIN(c_rice_param + 1, 4); |
| 1509 |
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19096026 | if (sps->persistent_rice_adaptation_enabled && !rice_init) { |
| 1510 | 36551 | int c_rice_p_init = lc->stat_coeff[sb_type] / 4; | |
| 1511 |
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36551 | if (last_coeff_abs_level_remaining >= (3 << c_rice_p_init)) |
| 1512 | 1344 | lc->stat_coeff[sb_type]++; | |
| 1513 |
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35207 | else if (2 * last_coeff_abs_level_remaining < (1 << c_rice_p_init)) |
| 1514 |
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24604 | if (lc->stat_coeff[sb_type] > 0) |
| 1515 | 1307 | lc->stat_coeff[sb_type]--; | |
| 1516 | 36551 | rice_init = 1; | |
| 1517 | } | ||
| 1518 | } | ||
| 1519 |
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120689480 | if (pps->sign_data_hiding_flag && sign_hidden) { |
| 1520 | 83473528 | sum_abs += trans_coeff_level; | |
| 1521 |
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83473528 | if (n == first_nz_pos_in_cg && (sum_abs&1)) |
| 1522 | 5773575 | trans_coeff_level = -trans_coeff_level; | |
| 1523 | } | ||
| 1524 | // equiprobable sign: apply it branchless | ||
| 1525 | 120689480 | sign = -(int64_t)(coeff_sign_flag >> 15); | |
| 1526 | 120689480 | trans_coeff_level = (trans_coeff_level ^ sign) - sign; | |
| 1527 | 120689480 | coeff_sign_flag <<= 1; | |
| 1528 |
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120689480 | if(!lc->cu.cu_transquant_bypass_flag) { |
| 1529 |
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|
110876128 | if (sps->scaling_list_enabled && !(transform_skip_flag && log2_trafo_size > 2)) { |
| 1530 |
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|
3931436 | if(y_c || x_c || log2_trafo_size < 4) { |
| 1531 |
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3837360 | switch(log2_trafo_size) { |
| 1532 | 990157 | case 3: pos = (y_c << 3) + x_c; break; | |
| 1533 | 1171225 | case 4: pos = ((y_c >> 1) << 3) + (x_c >> 1); break; | |
| 1534 | 442599 | case 5: pos = ((y_c >> 2) << 3) + (x_c >> 2); break; | |
| 1535 | 1233379 | default: pos = (y_c << 2) + x_c; break; | |
| 1536 | } | ||
| 1537 | 3837360 | scale_m = scale_matrix[pos]; | |
| 1538 | } else { | ||
| 1539 | 94076 | scale_m = dc_scale; | |
| 1540 | } | ||
| 1541 | } | ||
| 1542 | 110876128 | trans_coeff_level = (trans_coeff_level * (int64_t)scale * (int64_t)scale_m + add) >> shift; | |
| 1543 | 110876128 | trans_coeff_level = FFMAX(FFMIN(trans_coeff_level, 32767), -32768); | |
| 1544 | } | ||
| 1545 | 120689480 | coeffs[y_c * trafo_size + x_c] = trans_coeff_level; | |
| 1546 | } | ||
| 1547 | } | ||
| 1548 | } | ||
| 1549 | |||
| 1550 |
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16515668 | if (lc->cu.cu_transquant_bypass_flag) { |
| 1551 |
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497512 | if (explicit_rdpcm_flag || (sps->implicit_rdpcm_enabled && |
| 1552 | ✗ | (pred_mode_intra == 10 || pred_mode_intra == 26))) { | |
| 1553 | ✗ | int mode = sps->implicit_rdpcm_enabled ? (pred_mode_intra == 26) : explicit_rdpcm_dir_flag; | |
| 1554 | |||
| 1555 | ✗ | s->hevcdsp.transform_rdpcm(coeffs, log2_trafo_size, mode); | |
| 1556 | } | ||
| 1557 | } else { | ||
| 1558 |
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16018156 | if (transform_skip_flag) { |
| 1559 |
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|
76129 | int rot = sps->transform_skip_rotation_enabled && |
| 1560 |
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|
520431 | log2_trafo_size == 2 && |
| 1561 |
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54609 | lc->cu.pred_mode == MODE_INTRA; |
| 1562 |
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444302 | if (rot) { |
| 1563 |
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187434 | for (i = 0; i < 8; i++) |
| 1564 | 166608 | FFSWAP(int16_t, coeffs[i], coeffs[16 - i - 1]); | |
| 1565 | } | ||
| 1566 | |||
| 1567 | 444302 | s->hevcdsp.dequant(coeffs, log2_trafo_size); | |
| 1568 | |||
| 1569 |
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444302 | if (explicit_rdpcm_flag || (sps->implicit_rdpcm_enabled && |
| 1570 |
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73039 | lc->cu.pred_mode == MODE_INTRA && |
| 1571 |
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25185 | (pred_mode_intra == 10 || pred_mode_intra == 26))) { |
| 1572 |
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27063 | int mode = explicit_rdpcm_flag ? explicit_rdpcm_dir_flag : (pred_mode_intra == 26); |
| 1573 | |||
| 1574 | 27063 | s->hevcdsp.transform_rdpcm(coeffs, log2_trafo_size, mode); | |
| 1575 | } | ||
| 1576 |
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|
15573854 | } else if (lc->cu.pred_mode == MODE_INTRA && c_idx == 0 && log2_trafo_size == 2) { |
| 1577 | 4026849 | s->hevcdsp.transform_4x4_luma(coeffs); | |
| 1578 | } else { | ||
| 1579 |
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11547005 | if (max_xy == 0) |
| 1580 | 2806198 | s->hevcdsp.idct_dc[log2_trafo_size - 2](coeffs); | |
| 1581 | else | ||
| 1582 | 8740807 | s->hevcdsp.idct[log2_trafo_size - 2](coeffs, col_limit); | |
| 1583 | } | ||
| 1584 | } | ||
| 1585 |
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16515668 | if (lc->tu.cross_pf) { |
| 1586 | 269268 | int16_t *coeffs_y = (int16_t*)lc->edge_emu_buffer; | |
| 1587 | |||
| 1588 |
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20522148 | for (i = 0; i < (trafo_size * trafo_size); i++) { |
| 1589 | 20252880 | coeffs[i] = coeffs[i] + ((lc->tu.res_scale_val * coeffs_y[i]) >> 3); | |
| 1590 | } | ||
| 1591 | } | ||
| 1592 | 16515668 | s->hevcdsp.add_residual[log2_trafo_size-2](dst, coeffs, stride); | |
| 1593 | 16515668 | } | |
| 1594 | |||
| 1595 | 3094397 | void ff_hevc_hls_mvd_coding(HEVCLocalContext *lc, int x0, int y0, int log2_cb_size) | |
| 1596 | { | ||
| 1597 | 3094397 | int x = abs_mvd_greater0_flag_decode(lc); | |
| 1598 | 3094397 | int y = abs_mvd_greater0_flag_decode(lc); | |
| 1599 | |||
| 1600 |
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3094397 | if (x) |
| 1601 | 2179263 | x += abs_mvd_greater1_flag_decode(lc); | |
| 1602 |
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3094397 | if (y) |
| 1603 | 2094257 | y += abs_mvd_greater1_flag_decode(lc); | |
| 1604 | |||
| 1605 |
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3094397 | switch (x) { |
| 1606 | 1558043 | case 2: lc->pu.mvd.x = mvd_decode(lc); break; | |
| 1607 | 621220 | case 1: lc->pu.mvd.x = mvd_sign_flag_decode(lc); break; | |
| 1608 | 915134 | case 0: lc->pu.mvd.x = 0; break; | |
| 1609 | } | ||
| 1610 | |||
| 1611 |
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3094397 | switch (y) { |
| 1612 | 1458699 | case 2: lc->pu.mvd.y = mvd_decode(lc); break; | |
| 1613 | 635558 | case 1: lc->pu.mvd.y = mvd_sign_flag_decode(lc); break; | |
| 1614 | 1000140 | case 0: lc->pu.mvd.y = 0; break; | |
| 1615 | } | ||
| 1616 | 3094397 | } | |
| 1617 |