Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2015 The Android Open Source Project |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at: |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | * |
| 17 | ***************************************************************************** |
| 18 | * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| 19 | */ |
| 20 | /*! |
| 21 | ************************************************************************** |
| 22 | * \file ih264d_parse_bslice.c |
| 23 | * |
| 24 | * \brief |
| 25 | * Contains routines that decode a I slice type |
| 26 | * |
| 27 | * Detailed_description |
| 28 | * |
| 29 | * \date |
| 30 | * 07/07/2003 |
| 31 | * |
| 32 | * \author NS |
| 33 | ************************************************************************** |
| 34 | */ |
| 35 | |
| 36 | #include <string.h> |
| 37 | #include "ih264d_bitstrm.h" |
| 38 | #include "ih264d_defs.h" |
| 39 | #include "ih264d_debug.h" |
| 40 | #include "ih264d_tables.h" |
| 41 | #include "ih264d_structs.h" |
| 42 | #include "ih264d_defs.h" |
| 43 | #include "ih264d_parse_cavlc.h" |
| 44 | #include "ih264d_mb_utils.h" |
| 45 | #include "ih264d_parse_slice.h" |
| 46 | #include "ih264d_process_intra_mb.h" |
| 47 | #include "ih264d_mvpred.h" |
| 48 | #include "ih264d_parse_islice.h" |
| 49 | #include "ih264d_inter_pred.h" |
| 50 | #include "ih264d_process_pslice.h" |
| 51 | #include "ih264d_process_bslice.h" |
| 52 | #include "ih264d_deblocking.h" |
| 53 | #include "ih264d_cabac.h" |
| 54 | #include "ih264d_parse_mb_header.h" |
| 55 | #include "ih264d_error_handler.h" |
| 56 | #include "ih264d_mvpred.h" |
| 57 | #include "ih264d_cabac.h" |
| 58 | #include "ih264d_utils.h" |
| 59 | |
| 60 | void ih264d_init_cabac_contexts(UWORD8 u1_slice_type, dec_struct_t * ps_dec); |
| 61 | |
| 62 | /*! |
| 63 | ************************************************************************** |
| 64 | * \if Function name : ParseMb_SubMb_PredBCav\endif |
| 65 | * |
| 66 | * \brief |
| 67 | * Implements sub_mb_pred() of 7.3.5.2. & mb_pred() of 7.3.5.1 |
| 68 | * |
| 69 | * \return |
| 70 | * None. |
| 71 | * |
| 72 | ************************************************************************** |
| 73 | */ |
| 74 | WORD32 ih264d_parse_bmb_non_direct_cavlc(dec_struct_t * ps_dec, |
| 75 | dec_mb_info_t * ps_cur_mb_info, |
| 76 | UWORD8 u1_mb_num, |
| 77 | UWORD8 u1_num_mbsNby2) |
| 78 | { |
| 79 | dec_bit_stream_t * ps_bitstrm = ps_dec->ps_bitstrm; |
| 80 | UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; |
| 81 | UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; |
| 82 | UWORD8 * pu1_sub_mb_pred_modes = (UWORD8 *)(gau1_ih264d_submb_pred_modes) + 4; |
| 83 | const UWORD8 (*pu1_mb_pred_modes)[32] = |
| 84 | (const UWORD8 (*)[32])gau1_ih264d_mb_pred_modes; |
| 85 | const UWORD8 * pu1_num_mb_part = (const UWORD8 *)gau1_ih264d_num_mb_part; |
| 86 | const UWORD8 * pu1_sub_mb_mc_mode = (const UWORD8 *)(gau1_ih264d_submb_mc_mode) |
| 87 | + 4; |
| 88 | |
| 89 | parse_pmbarams_t * ps_parse_mb_data = ps_dec->ps_parse_mb_data |
| 90 | + u1_num_mbsNby2; |
| 91 | UWORD8 * pu1_col_info = ps_parse_mb_data->u1_col_info; |
| 92 | WORD8 (*pi1_ref_idx)[MAX_REFIDX_INFO_PER_MB] = ps_parse_mb_data->i1_ref_idx; |
| 93 | UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; |
| 94 | UWORD8 u1_mb_mc_mode, u1_num_mb_part, u1_sub_mb = !(u1_mb_type ^ B_8x8); |
| 95 | UWORD32 u4_mb_mc_mode = 0, u4_mb_pred_mode = 0; |
| 96 | WORD32 ret; |
| 97 | |
| 98 | if(u1_sub_mb) |
| 99 | { |
| 100 | UWORD8 uc_i; |
| 101 | u1_mb_mc_mode = 0; |
| 102 | u1_num_mb_part = 4; |
| 103 | /* Reading the subMB type */ |
| 104 | for(uc_i = 0; uc_i < 4; uc_i++) |
| 105 | { |
| 106 | |
| 107 | UWORD32 ui_sub_mb_mode; |
| 108 | |
| 109 | //Inlined ih264d_uev |
| 110 | UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst; |
| 111 | UWORD32 u4_word, u4_ldz; |
| 112 | |
| 113 | /***************************************************************/ |
| 114 | /* Find leading zeros in next 32 bits */ |
| 115 | /***************************************************************/ |
| 116 | NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf); |
| 117 | u4_ldz = CLZ(u4_word); |
| 118 | /* Flush the ps_bitstrm */ |
| 119 | u4_bitstream_offset += (u4_ldz + 1); |
| 120 | /* Read the suffix from the ps_bitstrm */ |
| 121 | u4_word = 0; |
| 122 | if(u4_ldz) |
| 123 | GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf, |
| 124 | u4_ldz); |
| 125 | *pu4_bitstrm_ofst = u4_bitstream_offset; |
| 126 | ui_sub_mb_mode = ((1 << u4_ldz) + u4_word - 1); |
| 127 | //Inlined ih264d_uev |
| 128 | |
| 129 | if(ui_sub_mb_mode > 12) |
| 130 | return ERROR_SUB_MB_TYPE; |
| 131 | else |
| 132 | { |
| 133 | UWORD8 u1_subMbPredMode = pu1_sub_mb_pred_modes[ui_sub_mb_mode]; |
| 134 | u4_mb_mc_mode = (u4_mb_mc_mode << 8) |
| 135 | | pu1_sub_mb_mc_mode[ui_sub_mb_mode]; |
| 136 | u4_mb_pred_mode = (u4_mb_pred_mode << 8) | u1_subMbPredMode; |
| 137 | pi1_ref_idx[0][uc_i] = ((u1_subMbPredMode & PRED_L0) - 1) >> 1; |
| 138 | pi1_ref_idx[1][uc_i] = ((u1_subMbPredMode & PRED_L1) - 1) >> 1; |
| 139 | COPYTHECONTEXT("sub_mb_type", u1_subMbPredMode); |
| 140 | } |
| 141 | /* Storing collocated Mb and SubMb mode information */ |
| 142 | *pu1_col_info++ = ((PRED_8x8) << 6) |
| 143 | | ((pu1_sub_mb_mc_mode[ui_sub_mb_mode] << 4)); |
| 144 | if(ui_sub_mb_mode != B_DIRECT_8x8) |
| 145 | { |
| 146 | if(ui_sub_mb_mode > B_BI_8x8) |
| 147 | { |
| 148 | ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 0; |
| 149 | } |
| 150 | } |
| 151 | else if(!ps_dec->s_high_profile.u1_direct_8x8_inference_flag) |
| 152 | { |
| 153 | ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 0; |
| 154 | } |
| 155 | } |
| 156 | } |
| 157 | else |
| 158 | { |
| 159 | UWORD8 u1_mb_pred_mode_idx = 5 + u1_mb_type; |
| 160 | UWORD8 u1_mb_pred_mode_part0 = pu1_mb_pred_modes[0][u1_mb_pred_mode_idx]; |
| 161 | UWORD8 u1_mb_pred_mode_part1 = pu1_mb_pred_modes[1][u1_mb_pred_mode_idx]; |
| 162 | u1_mb_mc_mode = ps_cur_mb_info->u1_mb_mc_mode; |
| 163 | u1_num_mb_part = pu1_num_mb_part[u1_mb_mc_mode]; |
| 164 | |
| 165 | pi1_ref_idx[0][0] = ((u1_mb_pred_mode_part0 & PRED_L0) - 1) >> 1; |
| 166 | pi1_ref_idx[1][0] = ((u1_mb_pred_mode_part0 & PRED_L1) - 1) >> 1; |
| 167 | pi1_ref_idx[0][1] = ((u1_mb_pred_mode_part1 & PRED_L0) - 1) >> 1; |
| 168 | pi1_ref_idx[1][1] = ((u1_mb_pred_mode_part1 & PRED_L1) - 1) >> 1; |
| 169 | |
| 170 | u4_mb_pred_mode = (u1_mb_pred_mode_part0 << 8) | u1_mb_pred_mode_part1; |
| 171 | u4_mb_mc_mode = u1_mb_mc_mode | (u1_mb_mc_mode << 8); |
| 172 | u4_mb_mc_mode <<= 16; |
| 173 | u4_mb_pred_mode <<= 16; |
| 174 | |
| 175 | /* Storing collocated Mb and SubMb mode information */ |
| 176 | *pu1_col_info++ = (u1_mb_mc_mode << 6); |
| 177 | if(u1_mb_mc_mode) |
| 178 | *pu1_col_info++ = (u1_mb_mc_mode << 6); |
| 179 | } |
| 180 | |
| 181 | { |
| 182 | UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; |
| 183 | UWORD8 uc_field = ps_cur_mb_info->u1_mb_field_decodingflag; |
| 184 | UWORD8 *pu1_num_ref_idx_lx_active = |
| 185 | ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active; |
| 186 | const UWORD8 u1_mbaff_field = (u1_mbaff & uc_field); |
| 187 | UWORD8 u4_num_ref_idx_lx_active; |
| 188 | |
| 189 | u4_num_ref_idx_lx_active = (pu1_num_ref_idx_lx_active[0] |
| 190 | << u1_mbaff_field) - 1; |
| 191 | |
| 192 | if(u4_num_ref_idx_lx_active) |
| 193 | { |
| 194 | if(1 == u4_num_ref_idx_lx_active) |
| 195 | ih264d_parse_bmb_ref_index_cavlc_range1( |
| 196 | u1_num_mb_part, ps_bitstrm, pi1_ref_idx[0], |
| 197 | u4_num_ref_idx_lx_active); |
| 198 | else |
| 199 | { |
| 200 | ret = ih264d_parse_bmb_ref_index_cavlc(u1_num_mb_part, ps_bitstrm, |
| 201 | pi1_ref_idx[0], |
| 202 | u4_num_ref_idx_lx_active); |
| 203 | if(ret != OK) |
| 204 | return ret; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | u4_num_ref_idx_lx_active = (pu1_num_ref_idx_lx_active[1] |
| 209 | << u1_mbaff_field) - 1; |
| 210 | |
| 211 | if(u4_num_ref_idx_lx_active) |
| 212 | { |
| 213 | if(1 == u4_num_ref_idx_lx_active) |
| 214 | ih264d_parse_bmb_ref_index_cavlc_range1( |
| 215 | u1_num_mb_part, ps_bitstrm, pi1_ref_idx[1], |
| 216 | u4_num_ref_idx_lx_active); |
| 217 | else |
| 218 | { |
| 219 | ret = ih264d_parse_bmb_ref_index_cavlc(u1_num_mb_part, ps_bitstrm, |
| 220 | pi1_ref_idx[1], |
| 221 | u4_num_ref_idx_lx_active); |
| 222 | if(ret != OK) |
| 223 | return ret; |
| 224 | } |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | /* Read MotionVectors */ |
| 229 | { |
| 230 | const UWORD8 * pu1_top_left_sub_mb_indx; |
| 231 | |
| 232 | const UWORD8 * pu1_sub_mb_indx_mod = |
| 233 | (const UWORD8 *)(gau1_ih264d_submb_indx_mod) |
| 234 | + (u1_sub_mb * 6); |
| 235 | const UWORD8 * pu1_sub_mb_partw = (const UWORD8 *)gau1_ih264d_submb_partw; |
| 236 | const UWORD8 * pu1_sub_mb_parth = (const UWORD8 *)gau1_ih264d_submb_parth; |
| 237 | const UWORD8 * pu1_num_sub_mb_part = |
| 238 | (const UWORD8 *)gau1_ih264d_num_submb_part; |
| 239 | const UWORD8 * pu1_mb_partw = (const UWORD8 *)gau1_ih264d_mb_partw; |
| 240 | const UWORD8 * pu1_mb_parth = (const UWORD8 *)gau1_ih264d_mb_parth; |
| 241 | UWORD8 u1_p_idx = 0, u1_num_submb_part, uc_lx; |
| 242 | parse_part_params_t * ps_part; |
| 243 | mv_pred_t *ps_mv_start = ps_dec->ps_mv_cur + (u1_mb_num << 4); |
| 244 | UWORD8 u1_mb_part_wd, u1_mb_part_ht; |
| 245 | |
| 246 | /* Initialisations */ |
| 247 | ps_part = ps_dec->ps_part; |
| 248 | /* Default Initialization for Non subMb Case Mode */ |
| 249 | u1_mb_part_wd = pu1_mb_partw[u1_mb_mc_mode]; |
| 250 | u1_mb_part_ht = pu1_mb_parth[u1_mb_mc_mode]; |
| 251 | u1_num_submb_part = 1; |
| 252 | |
| 253 | /* Decoding the MV for the subMB */ |
| 254 | for(uc_lx = 0; uc_lx < 2; uc_lx++) |
| 255 | { |
| 256 | UWORD8 u1_sub_mb_num = 0, u1_pred_mode, uc_i; |
| 257 | UWORD32 u4_mb_mc_mode_tmp = u4_mb_mc_mode; |
| 258 | UWORD32 u4_mb_pred_mode_tmp = u4_mb_pred_mode; |
| 259 | UWORD16 u2_sub_mb_num = 0x028A; // for sub mb case |
| 260 | UWORD8 u1_b2 = uc_lx << 1; |
| 261 | u1_pred_mode = (uc_lx) ? PRED_L1 : PRED_L0; |
| 262 | pu1_top_left_sub_mb_indx = pu1_sub_mb_indx_mod + (u1_mb_mc_mode << 1); |
| 263 | |
| 264 | for(uc_i = 0; uc_i < u1_num_mb_part; uc_i++) |
| 265 | { |
| 266 | UWORD8 u1_mb_mc_mode, uc_j; |
| 267 | UWORD8 i1_pred = u4_mb_pred_mode_tmp >> 24; |
| 268 | u1_mb_mc_mode = u4_mb_mc_mode_tmp >> 24; |
| 269 | u4_mb_pred_mode_tmp <<= 8; |
| 270 | u4_mb_mc_mode_tmp <<= 8; |
| 271 | /* subMb prediction mode */ |
| 272 | if(u1_sub_mb) |
| 273 | { |
| 274 | |
| 275 | u1_mb_part_wd = pu1_sub_mb_partw[u1_mb_mc_mode]; |
| 276 | u1_mb_part_ht = pu1_sub_mb_parth[u1_mb_mc_mode]; |
| 277 | u1_sub_mb_num = u2_sub_mb_num >> 12; |
| 278 | u1_num_submb_part = pu1_num_sub_mb_part[u1_mb_mc_mode]; |
| 279 | pu1_top_left_sub_mb_indx = pu1_sub_mb_indx_mod |
| 280 | + (u1_mb_mc_mode << 1); |
| 281 | u2_sub_mb_num <<= 4; |
| 282 | } |
| 283 | for(uc_j = 0; uc_j < u1_num_submb_part; |
| 284 | uc_j++, pu1_top_left_sub_mb_indx++) |
| 285 | { |
| 286 | mv_pred_t * ps_mv; |
| 287 | u1_sub_mb_num = u1_sub_mb_num + *pu1_top_left_sub_mb_indx; |
| 288 | ps_mv = ps_mv_start + u1_sub_mb_num; |
| 289 | |
| 290 | /* Storing Info for partitions, writing only once */ |
| 291 | if(uc_lx) |
| 292 | { |
| 293 | ps_part->u1_is_direct = (!i1_pred); |
| 294 | ps_part->u1_pred_mode = i1_pred; |
| 295 | ps_part->u1_sub_mb_num = u1_sub_mb_num; |
| 296 | ps_part->u1_partheight = u1_mb_part_ht; |
| 297 | ps_part->u1_partwidth = u1_mb_part_wd; |
| 298 | /* Increment partition Index */ |
| 299 | u1_p_idx++; |
| 300 | ps_part++; |
| 301 | } |
| 302 | |
| 303 | if(i1_pred & u1_pred_mode) |
| 304 | { |
| 305 | WORD16 i2_mvx, i2_mvy; |
| 306 | |
| 307 | //inlining ih264d_sev |
| 308 | { |
| 309 | UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst; |
| 310 | UWORD32 u4_word, u4_ldz, u4_abs_val; |
| 311 | |
| 312 | /***************************************************************/ |
| 313 | /* Find leading zeros in next 32 bits */ |
| 314 | /***************************************************************/ |
| 315 | NEXTBITS_32(u4_word, u4_bitstream_offset, |
| 316 | pu4_bitstrm_buf); |
| 317 | u4_ldz = CLZ(u4_word); |
| 318 | |
| 319 | /* Flush the ps_bitstrm */ |
| 320 | u4_bitstream_offset += (u4_ldz + 1); |
| 321 | |
| 322 | /* Read the suffix from the ps_bitstrm */ |
| 323 | u4_word = 0; |
| 324 | if(u4_ldz) |
| 325 | GETBITS(u4_word, u4_bitstream_offset, |
| 326 | pu4_bitstrm_buf, u4_ldz); |
| 327 | |
| 328 | *pu4_bitstrm_ofst = u4_bitstream_offset; |
| 329 | u4_abs_val = ((1 << u4_ldz) + u4_word) >> 1; |
| 330 | |
| 331 | if(u4_word & 0x1) |
| 332 | i2_mvx = (-(WORD32)u4_abs_val); |
| 333 | else |
| 334 | i2_mvx = (u4_abs_val); |
| 335 | } |
| 336 | //inlinined ih264d_sev |
| 337 | |
| 338 | //inlining ih264d_sev |
| 339 | { |
| 340 | UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst; |
| 341 | UWORD32 u4_word, u4_ldz, u4_abs_val; |
| 342 | |
| 343 | /***************************************************************/ |
| 344 | /* Find leading zeros in next 32 bits */ |
| 345 | /***************************************************************/ |
| 346 | NEXTBITS_32(u4_word, u4_bitstream_offset, |
| 347 | pu4_bitstrm_buf); |
| 348 | u4_ldz = CLZ(u4_word); |
| 349 | |
| 350 | /* Flush the ps_bitstrm */ |
| 351 | u4_bitstream_offset += (u4_ldz + 1); |
| 352 | |
| 353 | /* Read the suffix from the ps_bitstrm */ |
| 354 | u4_word = 0; |
| 355 | if(u4_ldz) |
| 356 | GETBITS(u4_word, u4_bitstream_offset, |
| 357 | pu4_bitstrm_buf, u4_ldz); |
| 358 | |
| 359 | *pu4_bitstrm_ofst = u4_bitstream_offset; |
| 360 | u4_abs_val = ((1 << u4_ldz) + u4_word) >> 1; |
| 361 | |
| 362 | if(u4_word & 0x1) |
| 363 | i2_mvy = (-(WORD32)u4_abs_val); |
| 364 | else |
| 365 | i2_mvy = (u4_abs_val); |
| 366 | } |
| 367 | //inlinined ih264d_sev |
| 368 | |
| 369 | /* Storing Mv residuals */ |
| 370 | ps_mv->i2_mv[u1_b2] = i2_mvx; |
| 371 | ps_mv->i2_mv[u1_b2 + 1] = i2_mvy; |
| 372 | } |
| 373 | } |
| 374 | } |
| 375 | } |
| 376 | /* write back to the scratch partition info */ |
| 377 | ps_dec->ps_part = ps_part; |
| 378 | ps_parse_mb_data->u1_num_part = u1_sub_mb ? u1_p_idx : u1_num_mb_part; |
| 379 | |
| 380 | } |
| 381 | return OK; |
| 382 | } |
| 383 | |
| 384 | /*! |
| 385 | ************************************************************************** |
| 386 | * \if Function name : ParseMb_SubMb_PredBCab\endif |
| 387 | * |
| 388 | * \brief |
| 389 | * Implements sub_mb_pred() of 7.3.5.2. & mb_pred() of 7.3.5.1 |
| 390 | * |
| 391 | * \return |
| 392 | * None. |
| 393 | * |
| 394 | ************************************************************************** |
| 395 | */ |
| 396 | |
| 397 | WORD32 ih264d_parse_bmb_non_direct_cabac(dec_struct_t * ps_dec, |
| 398 | dec_mb_info_t * ps_cur_mb_info, |
| 399 | UWORD8 u1_mb_num, |
| 400 | UWORD8 u1_num_mbsNby2) |
| 401 | { |
| 402 | /* Loads from ps_dec */ |
| 403 | decoding_envirnoment_t * ps_cab_env = &ps_dec->s_cab_dec_env; |
| 404 | dec_bit_stream_t * ps_bitstrm = ps_dec->ps_bitstrm; |
| 405 | ctxt_inc_mb_info_t *p_curr_ctxt = ps_dec->ps_curr_ctxt_mb_info; |
| 406 | parse_pmbarams_t * ps_parse_mb_data = ps_dec->ps_parse_mb_data |
| 407 | + u1_num_mbsNby2; |
| 408 | |
| 409 | /* table pointer loads */ |
| 410 | const UWORD8 * pu1_sub_mb_pred_modes = (UWORD8 *)(gau1_ih264d_submb_pred_modes) |
| 411 | + 4; |
| 412 | const UWORD8 (*pu1_mb_pred_modes)[32] = |
| 413 | (const UWORD8 (*)[32])gau1_ih264d_mb_pred_modes; |
| 414 | const UWORD8 *pu1_num_mb_part = (const UWORD8 *)gau1_ih264d_num_mb_part; |
| 415 | const UWORD8 *pu1_sub_mb_mc_mode = (UWORD8 *)(gau1_ih264d_submb_mc_mode) + 4; |
| 416 | |
| 417 | const UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; |
| 418 | UWORD8 * pu1_col_info = ps_parse_mb_data->u1_col_info; |
| 419 | WORD8 *pi1_ref_idx_l0 = &ps_parse_mb_data->i1_ref_idx[0][0]; |
| 420 | WORD8 *pi1_ref_idx_l1 = &ps_parse_mb_data->i1_ref_idx[1][0]; |
| 421 | UWORD8 u1_dec_ref_l0, u1_dec_ref_l1; |
| 422 | |
| 423 | UWORD8 u1_num_mb_part, u1_mb_mc_mode, u1_sub_mb, u1_mbpred_mode = 5 |
| 424 | + u1_mb_type; |
| 425 | UWORD32 u4_mb_mc_mode = 0, u4_mb_pred_mode = 0; |
| 426 | WORD32 ret; |
| 427 | |
| 428 | p_curr_ctxt->u1_mb_type = CAB_NON_BD16x16; |
| 429 | u1_sub_mb = !(u1_mb_type ^ B_8x8); |
| 430 | |
| 431 | { |
| 432 | UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; |
| 433 | UWORD8 *pu1_num_ref_idx_lx_active = |
| 434 | ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active; |
| 435 | UWORD8 uc_field = ps_cur_mb_info->u1_mb_field_decodingflag; |
| 436 | UWORD8 u1_mbaff_field = (u1_mbaff & uc_field); |
| 437 | u1_dec_ref_l0 = (pu1_num_ref_idx_lx_active[0] << u1_mbaff_field) - 1; |
| 438 | u1_dec_ref_l1 = (pu1_num_ref_idx_lx_active[1] << u1_mbaff_field) - 1; |
| 439 | } |
| 440 | |
| 441 | if(u1_sub_mb) |
| 442 | { |
| 443 | const UWORD8 u1_colz = ((PRED_8x8) << 6); |
| 444 | UWORD8 uc_i; |
| 445 | u1_mb_mc_mode = 0; |
| 446 | u1_num_mb_part = 4; |
| 447 | /* Reading the subMB type */ |
| 448 | for(uc_i = 0; uc_i < 4; uc_i++) |
| 449 | { |
| 450 | UWORD8 u1_sub_mb_mode, u1_subMbPredModes; |
| 451 | u1_sub_mb_mode = ih264d_parse_submb_type_cabac( |
| 452 | 1, ps_cab_env, ps_bitstrm, |
| 453 | ps_dec->p_sub_mb_type_t); |
| 454 | |
| 455 | if(u1_sub_mb_mode > 12) |
| 456 | return ERROR_SUB_MB_TYPE; |
| 457 | |
| 458 | u1_subMbPredModes = pu1_sub_mb_pred_modes[u1_sub_mb_mode]; |
| 459 | u4_mb_mc_mode = (u4_mb_mc_mode << 8) | pu1_sub_mb_mc_mode[u1_sub_mb_mode]; |
| 460 | u4_mb_pred_mode = (u4_mb_pred_mode << 8) | u1_subMbPredModes; |
| 461 | *pi1_ref_idx_l0++ = |
| 462 | (u1_subMbPredModes & PRED_L0) ? u1_dec_ref_l0 : -1; |
| 463 | *pi1_ref_idx_l1++ = |
| 464 | (u1_subMbPredModes & PRED_L1) ? u1_dec_ref_l1 : -1; |
| 465 | COPYTHECONTEXT("sub_mb_type", u1_sub_mb_mode); |
| 466 | /* Storing collocated Mb and SubMb mode information */ |
| 467 | *pu1_col_info++ = |
| 468 | (u1_colz | (pu1_sub_mb_mc_mode[u1_sub_mb_mode] << 4)); |
| 469 | if(u1_sub_mb_mode != B_DIRECT_8x8) |
| 470 | { |
| 471 | if(u1_sub_mb_mode > B_BI_8x8) |
| 472 | { |
| 473 | ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 0; |
| 474 | } |
| 475 | } |
| 476 | else if(!ps_dec->s_high_profile.u1_direct_8x8_inference_flag) |
| 477 | { |
| 478 | ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 0; |
| 479 | } |
| 480 | } |
| 481 | pi1_ref_idx_l0 -= 4; |
| 482 | pi1_ref_idx_l1 -= 4; |
| 483 | } |
| 484 | else |
| 485 | { |
| 486 | UWORD8 u1_mb_pred_mode_part0 = pu1_mb_pred_modes[0][u1_mbpred_mode]; |
| 487 | UWORD8 u1_mb_pred_mode_part1 = pu1_mb_pred_modes[1][u1_mbpred_mode]; |
| 488 | u1_mb_mc_mode = ps_cur_mb_info->u1_mb_mc_mode; |
| 489 | u1_num_mb_part = pu1_num_mb_part[u1_mb_mc_mode]; |
| 490 | /* Storing collocated Mb and SubMb mode information */ |
| 491 | *pu1_col_info++ = (u1_mb_mc_mode << 6); |
| 492 | if(u1_mb_mc_mode) |
| 493 | *pu1_col_info++ = (u1_mb_mc_mode << 6); |
| 494 | u4_mb_mc_mode = u1_mb_mc_mode | (u1_mb_mc_mode << 8); |
| 495 | u4_mb_mc_mode <<= 16; |
| 496 | u4_mb_pred_mode = ((u1_mb_pred_mode_part0 << 8) | u1_mb_pred_mode_part1) << 16; |
| 497 | |
| 498 | *pi1_ref_idx_l0++ = (u1_mb_pred_mode_part0 & PRED_L0) ? u1_dec_ref_l0 : -1; |
| 499 | *pi1_ref_idx_l0-- = (u1_mb_pred_mode_part1 & PRED_L0) ? u1_dec_ref_l0 : -1; |
| 500 | *pi1_ref_idx_l1++ = (u1_mb_pred_mode_part0 & PRED_L1) ? u1_dec_ref_l1 : -1; |
| 501 | *pi1_ref_idx_l1-- = (u1_mb_pred_mode_part1 & PRED_L1) ? u1_dec_ref_l1 : -1; |
| 502 | } |
| 503 | { |
| 504 | WORD8 *pi1_lft_cxt = ps_dec->pi1_left_ref_idx_ctxt_inc; |
| 505 | WORD8 *pi1_top_cxt = p_curr_ctxt->i1_ref_idx; |
| 506 | |
| 507 | ret = ih264d_parse_ref_idx_cabac(u1_num_mb_part, 0, u1_dec_ref_l0, |
| 508 | u1_mb_mc_mode, pi1_ref_idx_l0, pi1_lft_cxt, |
| 509 | pi1_top_cxt, ps_cab_env, ps_bitstrm, |
| 510 | ps_dec->p_ref_idx_t); |
| 511 | if(ret != OK) |
| 512 | return ret; |
| 513 | |
| 514 | ret = ih264d_parse_ref_idx_cabac(u1_num_mb_part, 2, u1_dec_ref_l1, |
| 515 | u1_mb_mc_mode, pi1_ref_idx_l1, pi1_lft_cxt, |
| 516 | pi1_top_cxt, ps_cab_env, ps_bitstrm, |
| 517 | ps_dec->p_ref_idx_t); |
| 518 | if(ret != OK) |
| 519 | return ret; |
| 520 | } |
| 521 | /* Read MotionVectors */ |
| 522 | { |
| 523 | const UWORD8 *pu1_top_left_sub_mb_indx; |
| 524 | UWORD8 uc_j, uc_lx; |
| 525 | UWORD8 u1_mb_part_wd, u1_mb_part_ht; |
| 526 | |
| 527 | const UWORD8 *pu1_sub_mb_indx_mod = |
| 528 | (const UWORD8 *)gau1_ih264d_submb_indx_mod |
| 529 | + (u1_sub_mb * 6); |
| 530 | const UWORD8 *pu1_sub_mb_partw = (const UWORD8 *)gau1_ih264d_submb_partw; |
| 531 | const UWORD8 *pu1_sub_mb_parth = (const UWORD8 *)gau1_ih264d_submb_parth; |
| 532 | const UWORD8 *pu1_num_sub_mb_part = |
| 533 | (const UWORD8 *)gau1_ih264d_num_submb_part; |
| 534 | const UWORD8 *pu1_mb_partw = (const UWORD8 *)gau1_ih264d_mb_partw; |
| 535 | const UWORD8 *pu1_mb_parth = (const UWORD8 *)gau1_ih264d_mb_parth; |
| 536 | |
| 537 | UWORD8 u1_p_idx = 0; |
| 538 | UWORD8 u1_num_submb_part; |
| 539 | parse_part_params_t *ps_part; |
| 540 | /* Initialisations */ |
| 541 | mv_pred_t *ps_mv_start = ps_dec->ps_mv_cur + (u1_mb_num << 4); |
| 542 | ps_part = ps_dec->ps_part; |
| 543 | |
| 544 | /* Default initialization for non subMb case */ |
| 545 | u1_mb_part_wd = pu1_mb_partw[u1_mb_mc_mode]; |
| 546 | u1_mb_part_ht = pu1_mb_parth[u1_mb_mc_mode]; |
| 547 | u1_num_submb_part = 1; |
| 548 | |
| 549 | /* Decoding the MV for the subMB */ |
| 550 | for(uc_lx = 0; uc_lx < 2; uc_lx++) |
| 551 | { |
| 552 | UWORD8 u1_sub_mb_num = 0; |
| 553 | UWORD32 u4_mb_pred_mode_tmp = u4_mb_pred_mode; |
| 554 | UWORD32 u4_mb_mc_mode_tmp = u4_mb_mc_mode; |
| 555 | UWORD8 u1_mb_mc_mode_1, u1_pred_mode, uc_i; |
| 556 | UWORD16 u2_sub_mb_num = 0x028A; |
| 557 | UWORD8 u1_b2 = uc_lx << 1; |
| 558 | u1_pred_mode = (uc_lx) ? PRED_L1 : PRED_L0; |
| 559 | /* Default for Cabac */ |
| 560 | pu1_top_left_sub_mb_indx = pu1_sub_mb_indx_mod + (u1_mb_mc_mode << 1); |
| 561 | for(uc_i = 0; uc_i < u1_num_mb_part; uc_i++) |
| 562 | { |
| 563 | |
| 564 | WORD8 i1_pred = (UWORD8)(u4_mb_pred_mode_tmp >> 24); |
| 565 | u1_mb_mc_mode_1 = (UWORD8)(u4_mb_mc_mode_tmp >> 24); |
| 566 | u4_mb_pred_mode_tmp <<= 8; |
| 567 | u4_mb_mc_mode_tmp <<= 8; |
| 568 | |
| 569 | /* subMb prediction mode */ |
| 570 | if(u1_sub_mb) |
| 571 | { |
| 572 | u1_mb_part_wd = pu1_sub_mb_partw[u1_mb_mc_mode_1]; |
| 573 | u1_mb_part_ht = pu1_sub_mb_parth[u1_mb_mc_mode_1]; |
| 574 | u1_sub_mb_num = u2_sub_mb_num >> 12; |
| 575 | pu1_top_left_sub_mb_indx = pu1_sub_mb_indx_mod + (u1_mb_mc_mode_1 << 1); |
| 576 | u1_num_submb_part = pu1_num_sub_mb_part[u1_mb_mc_mode_1]; |
| 577 | u2_sub_mb_num = u2_sub_mb_num << 4; |
| 578 | } |
| 579 | |
| 580 | for(uc_j = 0; uc_j < u1_num_submb_part; |
| 581 | uc_j++, pu1_top_left_sub_mb_indx++) |
| 582 | { |
| 583 | mv_pred_t *ps_mv; |
| 584 | u1_sub_mb_num = u1_sub_mb_num + *pu1_top_left_sub_mb_indx; |
| 585 | ps_mv = ps_mv_start + u1_sub_mb_num; |
| 586 | |
| 587 | /* Storing Info for partitions, writing only once */ |
| 588 | if(uc_lx) |
| 589 | { |
| 590 | ps_part->u1_is_direct = (!i1_pred); |
| 591 | ps_part->u1_pred_mode = i1_pred; |
| 592 | ps_part->u1_sub_mb_num = u1_sub_mb_num; |
| 593 | ps_part->u1_partheight = u1_mb_part_ht; |
| 594 | ps_part->u1_partwidth = u1_mb_part_wd; |
| 595 | |
| 596 | /* Increment partition Index */ |
| 597 | u1_p_idx++; |
| 598 | ps_part++; |
| 599 | } |
| 600 | |
| 601 | ih264d_get_mvd_cabac(u1_sub_mb_num, u1_b2, u1_mb_part_wd, |
| 602 | u1_mb_part_ht, |
| 603 | (UWORD8)(i1_pred & u1_pred_mode), ps_dec, |
| 604 | ps_mv); |
| 605 | } |
| 606 | } |
| 607 | } |
| 608 | /* write back to the scratch partition info */ |
| 609 | |
| 610 | ps_dec->ps_part = ps_part; |
| 611 | ps_parse_mb_data->u1_num_part = u1_sub_mb ? u1_p_idx : u1_num_mb_part; |
| 612 | |
| 613 | } |
| 614 | |
| 615 | return OK; |
| 616 | } |
| 617 | |
| 618 | /*! |
| 619 | ************************************************************************** |
| 620 | * \if Function name : ih264d_parse_bmb_cabac \endif |
| 621 | * |
| 622 | * \brief |
| 623 | * This function parses CABAC syntax of a B MB. |
| 624 | * |
| 625 | * \return |
| 626 | * 0 on Success and Error code otherwise |
| 627 | ************************************************************************** |
| 628 | */ |
| 629 | WORD32 ih264d_parse_bmb_cabac(dec_struct_t * ps_dec, |
| 630 | dec_mb_info_t * ps_cur_mb_info, |
| 631 | UWORD8 u1_mb_num, |
| 632 | UWORD8 u1_num_mbsNby2) |
| 633 | { |
| 634 | UWORD8 u1_cbp; |
| 635 | deblk_mb_t * ps_cur_deblk_mb = ps_dec->ps_deblk_mbn + u1_mb_num; |
| 636 | const UWORD8 *puc_mb_mc_mode = (const UWORD8 *)gau1_ih264d_mb_mc_mode; |
| 637 | UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; |
| 638 | ctxt_inc_mb_info_t *p_curr_ctxt = ps_dec->ps_curr_ctxt_mb_info; |
| 639 | |
| 640 | WORD32 ret; |
| 641 | UWORD8 u1_Bdirect_tranform_read = 1; |
| 642 | ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 1; |
| 643 | |
| 644 | ps_cur_mb_info->u1_mb_mc_mode = puc_mb_mc_mode[5 + u1_mb_type]; |
| 645 | |
| 646 | ps_cur_mb_info->u1_yuv_dc_block_flag = 0; |
| 647 | |
| 648 | ps_cur_deblk_mb->u1_mb_type |= D_B_SLICE; |
| 649 | if(u1_mb_type != B_DIRECT) |
| 650 | { |
| 651 | ret = ih264d_parse_bmb_non_direct_cabac(ps_dec, ps_cur_mb_info, u1_mb_num, |
| 652 | u1_num_mbsNby2); |
| 653 | if(ret != OK) |
| 654 | return ret; |
| 655 | } |
| 656 | else |
| 657 | { |
| 658 | |
| 659 | /************ STORING PARTITION INFO ***********/ |
| 660 | parse_part_params_t * ps_part_info; |
| 661 | ps_part_info = ps_dec->ps_part; |
| 662 | ps_part_info->u1_is_direct = PART_DIRECT_16x16; |
| 663 | ps_part_info->u1_sub_mb_num = 0; |
| 664 | ps_dec->ps_part++; |
| 665 | p_curr_ctxt->u1_mb_type = CAB_BD16x16; |
| 666 | |
| 667 | MEMSET_16BYTES(&ps_dec->pu1_left_mv_ctxt_inc[0][0], 0); |
| 668 | memset(ps_dec->pi1_left_ref_idx_ctxt_inc, 0, 4); |
| 669 | MEMSET_16BYTES(p_curr_ctxt->u1_mv, 0); |
| 670 | memset(p_curr_ctxt->i1_ref_idx, 0, 4); |
| 671 | |
| 672 | /* check whether transform8x8 u4_flag to be read or not */ |
| 673 | u1_Bdirect_tranform_read = |
| 674 | ps_dec->s_high_profile.u1_direct_8x8_inference_flag; |
| 675 | } |
| 676 | |
| 677 | /* Read the Coded block pattern */ |
| 678 | u1_cbp = (WORD8)ih264d_parse_ctx_cbp_cabac(ps_dec); |
| 679 | p_curr_ctxt->u1_cbp = u1_cbp; |
| 680 | ps_cur_mb_info->u1_cbp = u1_cbp; |
| 681 | |
| 682 | if(u1_cbp > 47) |
| 683 | return ERROR_CBP; |
| 684 | |
| 685 | COPYTHECONTEXT("coded_block_pattern", u1_cbp); |
| 686 | |
| 687 | ps_cur_mb_info->u1_tran_form8x8 = 0; |
| 688 | ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = 0; |
| 689 | |
| 690 | if((ps_dec->s_high_profile.u1_transform8x8_present) && (u1_cbp & (0xf)) |
| 691 | && (ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag) |
| 692 | && (u1_Bdirect_tranform_read)) |
| 693 | { |
| 694 | ps_cur_mb_info->u1_tran_form8x8 = ih264d_parse_transform8x8flag_cabac( |
| 695 | ps_dec, ps_cur_mb_info); |
| 696 | COPYTHECONTEXT("transform_size_8x8_flag", ps_cur_mb_info->u1_tran_form8x8); |
| 697 | |
| 698 | ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = ps_cur_mb_info->u1_tran_form8x8; |
| 699 | p_curr_ctxt->u1_transform8x8_ctxt = ps_cur_mb_info->u1_tran_form8x8; |
| 700 | } |
| 701 | else |
| 702 | { |
| 703 | p_curr_ctxt->u1_transform8x8_ctxt = 0; |
| 704 | } |
| 705 | |
| 706 | p_curr_ctxt->u1_intra_chroma_pred_mode = 0; |
| 707 | p_curr_ctxt->u1_yuv_dc_csbp &= 0xFE; |
| 708 | ps_dec->pu1_left_yuv_dc_csbp[0] &= 0x6; |
| 709 | |
| 710 | /* Read mb_qp_delta */ |
| 711 | if(u1_cbp) |
| 712 | { |
| 713 | WORD8 c_temp; |
| 714 | ret = ih264d_parse_mb_qp_delta_cabac(ps_dec, &c_temp); |
| 715 | if(ret != OK) |
| 716 | return ret; |
| 717 | COPYTHECONTEXT("mb_qp_delta", c_temp); |
| 718 | if(c_temp) |
| 719 | { |
| 720 | ret = ih264d_update_qp(ps_dec, c_temp); |
| 721 | if(ret != OK) |
| 722 | return ret; |
| 723 | } |
| 724 | } |
| 725 | else |
| 726 | ps_dec->i1_prev_mb_qp_delta = 0; |
| 727 | |
| 728 | ih264d_parse_residual4x4_cabac(ps_dec, ps_cur_mb_info, 0); |
| 729 | if(EXCEED_OFFSET(ps_dec->ps_bitstrm)) |
| 730 | return ERROR_EOB_TERMINATE_T; |
| 731 | return OK; |
| 732 | } |
| 733 | /*! |
| 734 | ************************************************************************** |
| 735 | * \if Function name : ih264d_parse_bmb_cavlc \endif |
| 736 | * |
| 737 | * \brief |
| 738 | * This function parses CAVLC syntax of a B MB. |
| 739 | * |
| 740 | * \return |
| 741 | * 0 on Success and Error code otherwise |
| 742 | ************************************************************************** |
| 743 | */ |
| 744 | WORD32 ih264d_parse_bmb_cavlc(dec_struct_t * ps_dec, |
| 745 | dec_mb_info_t * ps_cur_mb_info, |
| 746 | UWORD8 u1_mb_num, |
| 747 | UWORD8 u1_num_mbsNby2) |
| 748 | { |
| 749 | UWORD32 u4_cbp; |
| 750 | deblk_mb_t * ps_cur_deblk_mb = ps_dec->ps_deblk_mbn + u1_mb_num; |
| 751 | dec_bit_stream_t * const ps_bitstrm = ps_dec->ps_bitstrm; |
| 752 | UWORD32 * pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; |
| 753 | UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; |
| 754 | const UWORD8 *puc_mb_mc_mode = (const UWORD8 *)gau1_ih264d_mb_mc_mode; |
| 755 | UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; |
| 756 | |
| 757 | WORD32 ret; |
| 758 | UWORD8 u1_Bdirect_tranform_read = 1; |
| 759 | ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag = 1; |
| 760 | ps_cur_mb_info->u1_tran_form8x8 = 0; |
| 761 | ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = 0; |
| 762 | |
| 763 | ps_cur_mb_info->u1_yuv_dc_block_flag = 0; |
| 764 | |
| 765 | ps_cur_mb_info->u1_mb_mc_mode = puc_mb_mc_mode[5 + u1_mb_type]; |
| 766 | |
| 767 | ps_cur_deblk_mb->u1_mb_type |= D_B_SLICE; |
| 768 | if(u1_mb_type != B_DIRECT) |
| 769 | { |
| 770 | ret = ih264d_parse_bmb_non_direct_cavlc(ps_dec, ps_cur_mb_info, u1_mb_num, |
| 771 | u1_num_mbsNby2); |
| 772 | if(ret != OK) |
| 773 | return ret; |
| 774 | } |
| 775 | else |
| 776 | { |
| 777 | /************ STORING PARTITION INFO ***********/ |
| 778 | parse_part_params_t * ps_part_info; |
| 779 | ps_part_info = ps_dec->ps_part; |
| 780 | ps_part_info->u1_is_direct = PART_DIRECT_16x16; |
| 781 | ps_part_info->u1_sub_mb_num = 0; |
| 782 | ps_dec->ps_part++; |
| 783 | /* check whether transform8x8 u4_flag to be read or not */ |
| 784 | u1_Bdirect_tranform_read = |
| 785 | ps_dec->s_high_profile.u1_direct_8x8_inference_flag; |
| 786 | } |
| 787 | |
| 788 | /* Read the Coded block pattern */ |
| 789 | { |
| 790 | const UWORD8 * puc_CbpInter = gau1_ih264d_cbp_inter; |
| 791 | //Inlined ih264d_uev |
| 792 | UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst; |
| 793 | UWORD32 u4_word, u4_ldz; |
| 794 | |
| 795 | /***************************************************************/ |
| 796 | /* Find leading zeros in next 32 bits */ |
| 797 | /***************************************************************/ |
| 798 | NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf); |
| 799 | u4_ldz = CLZ(u4_word); |
| 800 | /* Flush the ps_bitstrm */ |
| 801 | u4_bitstream_offset += (u4_ldz + 1); |
| 802 | /* Read the suffix from the ps_bitstrm */ |
| 803 | u4_word = 0; |
| 804 | if(u4_ldz) |
| 805 | GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf, u4_ldz); |
| 806 | *pu4_bitstrm_ofst = u4_bitstream_offset; |
| 807 | u4_cbp = ((1 << u4_ldz) + u4_word - 1); |
| 808 | //Inlined ih264d_uev |
| 809 | if(u4_cbp > 47) |
| 810 | return ERROR_CBP; |
| 811 | u4_cbp = puc_CbpInter[u4_cbp]; |
| 812 | |
| 813 | if((ps_dec->s_high_profile.u1_transform8x8_present) && (u4_cbp & (0xf)) |
| 814 | && (ps_dec->s_high_profile.u1_no_submb_part_size_lt8x8_flag) |
| 815 | && (u1_Bdirect_tranform_read)) |
| 816 | { |
| 817 | ps_cur_mb_info->u1_tran_form8x8 = ih264d_get_bit_h264(ps_bitstrm); |
| 818 | COPYTHECONTEXT("transform_size_8x8_flag", ps_cur_mb_info->u1_tran_form8x8); |
| 819 | ps_cur_mb_info->ps_curmb->u1_tran_form8x8 = ps_cur_mb_info->u1_tran_form8x8; |
| 820 | } |
| 821 | |
| 822 | } |
| 823 | |
| 824 | COPYTHECONTEXT("coded_block_pattern", u4_cbp); |
| 825 | ps_cur_mb_info->u1_cbp = u4_cbp; |
| 826 | |
| 827 | /* Read mb_qp_delta */ |
| 828 | if(u4_cbp) |
| 829 | { |
| 830 | WORD32 i_temp; |
| 831 | //inlining ih264d_sev |
| 832 | |
| 833 | UWORD32 u4_bitstream_offset = *pu4_bitstrm_ofst; |
| 834 | UWORD32 u4_word, u4_ldz, u4_abs_val; |
| 835 | |
| 836 | /***************************************************************/ |
| 837 | /* Find leading zeros in next 32 bits */ |
| 838 | /***************************************************************/ |
| 839 | NEXTBITS_32(u4_word, u4_bitstream_offset, pu4_bitstrm_buf); |
| 840 | u4_ldz = CLZ(u4_word); |
| 841 | |
| 842 | /* Flush the ps_bitstrm */ |
| 843 | u4_bitstream_offset += (u4_ldz + 1); |
| 844 | |
| 845 | /* Read the suffix from the ps_bitstrm */ |
| 846 | u4_word = 0; |
| 847 | if(u4_ldz) |
| 848 | GETBITS(u4_word, u4_bitstream_offset, pu4_bitstrm_buf, u4_ldz); |
| 849 | |
| 850 | *pu4_bitstrm_ofst = u4_bitstream_offset; |
| 851 | u4_abs_val = ((1 << u4_ldz) + u4_word) >> 1; |
| 852 | |
| 853 | if(u4_word & 0x1) |
| 854 | i_temp = (-(WORD32)u4_abs_val); |
| 855 | else |
| 856 | i_temp = (u4_abs_val); |
| 857 | |
| 858 | if(i_temp < -26 || i_temp > 25) |
| 859 | return ERROR_INV_RANGE_QP_T; |
| 860 | //inlinined ih264d_sev |
| 861 | COPYTHECONTEXT("mb_qp_delta", i_temp); |
| 862 | if(i_temp) |
| 863 | { |
| 864 | ret = ih264d_update_qp(ps_dec, (WORD8)i_temp); |
| 865 | if(ret != OK) |
| 866 | return ret; |
| 867 | } |
| 868 | |
| 869 | ret = ih264d_parse_residual4x4_cavlc(ps_dec, ps_cur_mb_info, 0); |
| 870 | if(ret != OK) |
| 871 | return ret; |
| 872 | if(EXCEED_OFFSET(ps_bitstrm)) |
| 873 | return ERROR_EOB_TERMINATE_T; |
| 874 | } |
| 875 | else |
| 876 | { |
| 877 | ps_dec->i1_prev_mb_qp_delta = 0; |
| 878 | ih264d_update_nnz_for_skipmb(ps_dec, ps_cur_mb_info, CAVLC); |
| 879 | } |
| 880 | |
| 881 | return OK; |
| 882 | } |
| 883 | |
| 884 | WORD32 ih264d_mv_pred_ref_tfr_nby2_bmb(dec_struct_t * ps_dec, |
| 885 | UWORD8 u1_mb_idx, |
| 886 | UWORD8 u1_num_mbs) |
| 887 | { |
| 888 | parse_pmbarams_t * ps_mb_part_info; |
| 889 | parse_part_params_t * ps_part; |
| 890 | mv_pred_t *ps_mv_nmb, *ps_mv_nmb_start, *ps_mv_ntop, *ps_mv_ntop_start; |
| 891 | pic_buffer_t * ps_ref_frame; |
| 892 | UWORD8 u1_direct_mode_width; |
| 893 | UWORD8 i, j; |
| 894 | dec_mb_info_t * ps_cur_mb_info; |
| 895 | const UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; |
| 896 | UWORD8 u1_field; |
| 897 | WORD32 ret = 0; |
| 898 | |
| 899 | ps_dec->i4_submb_ofst -= (u1_num_mbs - u1_mb_idx) << 4; |
| 900 | ps_mb_part_info = ps_dec->ps_parse_mb_data; |
| 901 | ps_part = ps_dec->ps_parse_part_params; |
| 902 | |
| 903 | /* N/2 Mb MvPred and Transfer Setup Loop */ |
| 904 | for(i = u1_mb_idx; i < u1_num_mbs; i++, ps_mb_part_info++) |
| 905 | { |
| 906 | UWORD8 u1_colz = 0; |
| 907 | ps_dec->i4_submb_ofst += SUB_BLK_SIZE; |
| 908 | /* Restore the slice scratch MbX and MbY context */ |
| 909 | ps_cur_mb_info = ps_dec->ps_nmb_info + i; |
Harish Mahendrakar | 251b007 | 2015-08-04 09:55:15 +0530 | [diff] [blame] | 910 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 911 | |
| 912 | u1_field = ps_cur_mb_info->u1_mb_field_decodingflag; |
| 913 | |
| 914 | ps_mv_nmb_start = ps_dec->ps_mv_cur + (i << 4); |
| 915 | ps_dec->u2_mbx = ps_cur_mb_info->u2_mbx; |
| 916 | ps_dec->u2_mby = ps_cur_mb_info->u2_mby; |
| 917 | ps_dec->u1_currB_type = 0; |
| 918 | ps_dec->u2_mv_2mb[i & 0x1] = 0; |
| 919 | |
| 920 | /* Look for MV Prediction and Reference Transfer in Non-I Mbs */ |
| 921 | if(!ps_mb_part_info->u1_isI_mb) |
| 922 | { |
| 923 | UWORD8 u1_blk_no; |
| 924 | WORD16 i1_ref_idx, i1_ref_idx1; |
| 925 | UWORD8 u1_pred_mode; |
| 926 | UWORD8 u1_sub_mb_x, u1_sub_mb_y, u1_sub_mb_num; |
| 927 | UWORD8 u1_lx, u1_lx_start, u1_lxend, u1_tmp_lx; |
| 928 | UWORD8 u1_num_part, u1_num_ref, u1_wd, u1_ht; |
| 929 | UWORD32 *pu4_wt_offst; |
| 930 | UWORD8 u1_scale_ref, u4_bot_mb; |
| 931 | deblk_mb_t * ps_cur_deblk_mb = ps_dec->ps_deblk_mbn + i; |
| 932 | WORD8 (*pi1_ref_idx)[MAX_REFIDX_INFO_PER_MB] = |
| 933 | ps_mb_part_info->i1_ref_idx; |
| 934 | WORD8 *pi1_ref_idx0 = pi1_ref_idx[0], |
| 935 | *pi1_ref_idx1 = pi1_ref_idx[1]; |
| 936 | UWORD32 **ppu4_wt_ofst = ps_mb_part_info->pu4_wt_offst; |
| 937 | |
| 938 | /* MB Level initialisations */ |
| 939 | ps_dec->u4_num_pmbair = i >> u1_mbaff; |
| 940 | ps_dec->u1_mb_idx_mv = i; |
| 941 | |
| 942 | /* CHANGED CODE */ |
| 943 | ps_mv_ntop_start = ps_mv_nmb_start |
| 944 | - (ps_dec->u2_frm_wd_in_mbs << (4 + u1_mbaff)) + 12; |
| 945 | |
| 946 | u1_num_part = ps_mb_part_info->u1_num_part; |
| 947 | ps_cur_deblk_mb->u1_mb_type |= (u1_num_part > 1) << 1; |
| 948 | u1_direct_mode_width = (1 == ps_mb_part_info->u1_num_part) ? 16 : 8; |
| 949 | |
| 950 | |
| 951 | ps_cur_mb_info->u4_pred_info_pkd_idx = ps_dec->u4_pred_info_pkd_idx; |
| 952 | ps_cur_mb_info->u1_num_pred_parts = 0; |
| 953 | |
| 954 | /****************************************************/ |
| 955 | /* weighted u4_ofst pointer calculations, this loop */ |
| 956 | /* runs maximum 4 times, even in direct cases */ |
| 957 | /****************************************************/ |
| 958 | u1_scale_ref = u1_mbaff & ps_cur_mb_info->u1_mb_field_decodingflag; |
| 959 | u4_bot_mb = 1 - ps_cur_mb_info->u1_topmb; |
| 960 | if(ps_dec->ps_cur_pps->u1_wted_bipred_idc) |
| 961 | { |
| 962 | u1_num_ref = MIN(u1_num_part, 4); |
| 963 | if(PART_DIRECT_16x16 != ps_part->u1_is_direct) |
| 964 | { |
| 965 | for(u1_blk_no = 0; u1_blk_no < u1_num_ref; u1_blk_no++) |
| 966 | { |
| 967 | i1_ref_idx = MAX(pi1_ref_idx0[u1_blk_no], 0); |
| 968 | if(u1_scale_ref) |
| 969 | i1_ref_idx >>= 1; |
| 970 | i1_ref_idx *= |
| 971 | ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| 972 | if(u1_scale_ref) |
| 973 | i1_ref_idx += |
| 974 | (MAX(pi1_ref_idx1[u1_blk_no], 0) |
| 975 | >> 1); |
| 976 | else |
| 977 | i1_ref_idx += MAX(pi1_ref_idx1[u1_blk_no], 0); |
| 978 | pu4_wt_offst = (UWORD32*)&ps_dec->pu4_wt_ofsts[2 |
| 979 | * X3(i1_ref_idx)]; |
| 980 | |
| 981 | if(pi1_ref_idx0[u1_blk_no] < 0) |
| 982 | pu4_wt_offst += 1; |
| 983 | |
| 984 | ppu4_wt_ofst[u1_blk_no] = pu4_wt_offst; |
| 985 | if(u1_scale_ref |
| 986 | && (ps_dec->ps_cur_pps->u1_wted_bipred_idc |
| 987 | == 2)) |
| 988 | { |
| 989 | i1_ref_idx = MAX(pi1_ref_idx0[u1_blk_no], 0); |
| 990 | i1_ref_idx *= |
| 991 | (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1] |
| 992 | << 1); |
| 993 | i1_ref_idx += MAX(pi1_ref_idx1[u1_blk_no], 0); |
| 994 | if(u4_bot_mb) |
| 995 | { |
| 996 | i1_ref_idx += |
| 997 | (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0] |
| 998 | << 1) |
| 999 | * (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1] |
| 1000 | << 1); |
| 1001 | } |
| 1002 | pu4_wt_offst = (UWORD32*)&ps_dec->pu4_mbaff_wt_mat[2 |
| 1003 | * X3(i1_ref_idx)]; |
| 1004 | ppu4_wt_ofst[u1_blk_no] = pu4_wt_offst; |
| 1005 | } |
| 1006 | } |
| 1007 | } |
| 1008 | } |
| 1009 | |
| 1010 | /**************************************************/ |
| 1011 | /* Loop on Partitions */ |
| 1012 | /* direct mode is reflected as a single partition */ |
| 1013 | /**************************************************/ |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1014 | for(j = 0; j < u1_num_part; j++, ps_part++) |
| 1015 | { |
| 1016 | u1_sub_mb_num = ps_part->u1_sub_mb_num; |
| 1017 | ps_dec->u1_sub_mb_num = u1_sub_mb_num; |
| 1018 | |
| 1019 | if(PART_NOT_DIRECT != ps_part->u1_is_direct) |
| 1020 | { |
| 1021 | /**************************************************/ |
| 1022 | /* Direct Mode, Call DecodeSpatial/TemporalDirect */ |
| 1023 | /* only (those will in turn call FormMbPartInfo) */ |
| 1024 | /**************************************************/ |
| 1025 | ret = ps_dec->ps_cur_slice->pf_decodeDirect(ps_dec, |
| 1026 | u1_direct_mode_width, |
| 1027 | ps_cur_mb_info, i); |
| 1028 | if(ret != OK) |
| 1029 | return ret; |
| 1030 | ps_cur_deblk_mb->u1_mb_type |= (ps_dec->u1_currB_type << 1); |
| 1031 | |
| 1032 | } |
| 1033 | else |
| 1034 | { |
| 1035 | mv_pred_t s_mvPred; |
| 1036 | /**************************************************/ |
| 1037 | /* Non Direct Mode, Call Motion Vector Predictor */ |
| 1038 | /* and FormMbpartInfo */ |
| 1039 | /**************************************************/ |
| 1040 | u1_sub_mb_x = u1_sub_mb_num & 0x03; |
| 1041 | u1_sub_mb_y = u1_sub_mb_num >> 2; |
| 1042 | u1_blk_no = |
| 1043 | (u1_num_part < 4) ? |
| 1044 | j : |
| 1045 | (((u1_sub_mb_y >> 1) << 1) |
| 1046 | + (u1_sub_mb_x |
| 1047 | >> 1)); |
| 1048 | |
| 1049 | ps_mv_ntop = ps_mv_ntop_start + u1_sub_mb_x; |
| 1050 | ps_mv_nmb = ps_mv_nmb_start + u1_sub_mb_num; |
| 1051 | |
| 1052 | u1_pred_mode = ps_part->u1_pred_mode; |
| 1053 | u1_wd = ps_part->u1_partwidth; |
| 1054 | u1_ht = ps_part->u1_partheight; |
| 1055 | |
| 1056 | u1_lx_start = 0; |
| 1057 | u1_lxend = 2; |
| 1058 | if( PRED_L0 == u1_pred_mode) |
| 1059 | { |
| 1060 | s_mvPred.i2_mv[2] = 0; |
| 1061 | s_mvPred.i2_mv[3] = 0; |
| 1062 | u1_lxend = 1; |
| 1063 | } |
| 1064 | if( PRED_L1 == u1_pred_mode) |
| 1065 | { |
| 1066 | s_mvPred.i2_mv[0] = 0; |
| 1067 | s_mvPred.i2_mv[1] = 0; |
| 1068 | u1_lx_start = 1; |
| 1069 | } |
| 1070 | |
| 1071 | /* Populate the colpic info and reference frames */ |
| 1072 | s_mvPred.i1_ref_frame[0] = pi1_ref_idx0[u1_blk_no]; |
| 1073 | s_mvPred.i1_ref_frame[1] = pi1_ref_idx1[u1_blk_no]; |
| 1074 | |
| 1075 | ps_dec->pf_mvpred(ps_dec, ps_cur_mb_info, ps_mv_nmb, ps_mv_ntop, |
| 1076 | &s_mvPred, u1_sub_mb_num, u1_wd, |
| 1077 | u1_lx_start, u1_lxend, |
| 1078 | ps_cur_mb_info->u1_mb_mc_mode); |
| 1079 | |
| 1080 | /**********************************************************/ |
| 1081 | /* Loop on number of predictors, 1 Each for Forw Backw */ |
| 1082 | /* Loop 2 times for BiDirect mode */ |
| 1083 | /**********************************************************/ |
| 1084 | for(u1_lx = u1_lx_start; u1_lx < u1_lxend; u1_lx++) |
| 1085 | { |
| 1086 | WORD16 i2_mv_x, i2_mv_y; |
| 1087 | |
| 1088 | /********************************************************/ |
| 1089 | /* Predict Mv */ |
| 1090 | /* Add Mv Residuals and store back */ |
| 1091 | /********************************************************/ |
| 1092 | i1_ref_idx = s_mvPred.i1_ref_frame[u1_lx]; |
| 1093 | u1_tmp_lx = (u1_lx << 1); |
| 1094 | |
| 1095 | i2_mv_x = ps_mv_nmb->i2_mv[u1_tmp_lx]; |
| 1096 | i2_mv_y = ps_mv_nmb->i2_mv[u1_tmp_lx + 1]; |
| 1097 | |
| 1098 | i2_mv_x += s_mvPred.i2_mv[u1_tmp_lx]; |
| 1099 | i2_mv_y += s_mvPred.i2_mv[u1_tmp_lx + 1]; |
| 1100 | s_mvPred.i2_mv[u1_tmp_lx] = i2_mv_x; |
| 1101 | s_mvPred.i2_mv[u1_tmp_lx + 1] = i2_mv_y; |
| 1102 | |
| 1103 | /********************************************************/ |
| 1104 | /* Transfer setup call */ |
| 1105 | /* convert RefIdx if it is MbAff */ |
| 1106 | /* Pass Weight Offset and refFrame */ |
| 1107 | /********************************************************/ |
| 1108 | i1_ref_idx1 = i1_ref_idx >> u1_scale_ref; |
| 1109 | if(u1_scale_ref && ((i1_ref_idx & 0x01) != u4_bot_mb)) |
| 1110 | i1_ref_idx1 += MAX_REF_BUFS; |
| 1111 | ps_ref_frame = |
| 1112 | ps_dec->ps_ref_pic_buf_lx[u1_lx][i1_ref_idx1]; |
| 1113 | |
| 1114 | /* Storing Colocated-Zero u4_flag */ |
| 1115 | if(u1_lx == u1_lx_start) |
| 1116 | { |
| 1117 | /* Fill colocated info in MvPred structure */ |
| 1118 | s_mvPred.u1_col_ref_pic_idx = |
| 1119 | ps_ref_frame->u1_mv_buf_id; |
| 1120 | s_mvPred.u1_pic_type = ps_ref_frame->u1_pic_type; |
| 1121 | |
| 1122 | /* Calculating colocated zero information */ |
| 1123 | u1_colz = |
| 1124 | (u1_field << 1) |
| 1125 | | ((i1_ref_idx == 0) |
| 1126 | && (ABS(i2_mv_x) |
| 1127 | <= 1) |
| 1128 | && (ABS(i2_mv_y) |
| 1129 | <= 1)); |
| 1130 | u1_colz |= ps_mb_part_info->u1_col_info[u1_blk_no]; |
| 1131 | } |
| 1132 | |
| 1133 | pu4_wt_offst = ppu4_wt_ofst[u1_blk_no]; |
| 1134 | { |
| 1135 | pred_info_pkd_t *ps_pred_pkd; |
| 1136 | WORD16 i2_mv[2]; |
| 1137 | |
| 1138 | i2_mv[0] = i2_mv_x; |
| 1139 | i2_mv[1] = i2_mv_y; |
| 1140 | |
| 1141 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 1142 | ih264d_fill_pred_info(i2_mv,u1_wd,u1_ht,u1_sub_mb_num,u1_pred_mode, |
| 1143 | ps_pred_pkd,ps_ref_frame->u1_pic_buf_id,i1_ref_idx,pu4_wt_offst, |
| 1144 | ps_ref_frame->u1_pic_type); |
| 1145 | ps_dec->u4_pred_info_pkd_idx++; |
| 1146 | ps_cur_mb_info->u1_num_pred_parts++; |
| 1147 | |
| 1148 | |
| 1149 | } |
| 1150 | |
| 1151 | } |
| 1152 | ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb, |
| 1153 | u1_sub_mb_num, u1_colz, u1_ht, |
| 1154 | u1_wd); |
| 1155 | } |
| 1156 | } |
| 1157 | |
| 1158 | } |
| 1159 | else |
| 1160 | { |
| 1161 | /* Set zero values in case of Intra Mbs */ |
| 1162 | mv_pred_t s_mvPred = |
| 1163 | { |
| 1164 | { 0, 0, 0, 0 }, |
| 1165 | { -1, -1 }, 0, 0}; |
| 1166 | /* Storing colocated zero information */ |
| 1167 | ih264d_rep_mv_colz(ps_dec, &s_mvPred, ps_mv_nmb_start, 0, |
| 1168 | (UWORD8)(u1_field << 1), 4, 4); |
| 1169 | } |
| 1170 | |
| 1171 | /*if num _cores is set to 3 ,compute bs will be done in another thread*/ |
| 1172 | if(ps_dec->u4_num_cores < 3) |
| 1173 | { |
| 1174 | if(ps_dec->u4_app_disable_deblk_frm == 0) |
| 1175 | ps_dec->pf_compute_bs(ps_dec, ps_cur_mb_info, |
| 1176 | (UWORD16)(i >> u1_mbaff)); |
| 1177 | } |
| 1178 | } |
| 1179 | return OK; |
| 1180 | } |
| 1181 | /*! |
| 1182 | ************************************************************************** |
| 1183 | * \if Function name : ih264d_get_implicit_weights \endif |
| 1184 | * |
| 1185 | * \brief |
| 1186 | * Calculates Implicit Weights. |
| 1187 | * |
| 1188 | * \return |
| 1189 | * None |
| 1190 | * |
| 1191 | ************************************************************************** |
| 1192 | */ |
| 1193 | void ih264d_get_implicit_weights(dec_struct_t *ps_dec) |
| 1194 | { |
| 1195 | UWORD32 *pu4_iwt_ofst; |
| 1196 | UWORD8 i, j; |
| 1197 | struct pic_buffer_t *ps_pic_buff0, *ps_pic_buff1; |
| 1198 | WORD16 i2_dist_scale_factor; |
| 1199 | WORD16 i16_tb, i16_td, i16_tx; |
Hamsalekha S | 3eb692d | 2017-09-08 13:52:05 +0530 | [diff] [blame] | 1200 | WORD32 i4_tb, i4_td; |
| 1201 | WORD32 i4_poc0, i4_poc1; |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1202 | UWORD32 ui_temp0, ui_temp1; |
| 1203 | UWORD8 uc_num_ref_idx_l0_active, uc_num_ref_idx_l1_active; |
| 1204 | |
| 1205 | pu4_iwt_ofst = ps_dec->pu4_wts_ofsts_mat; |
| 1206 | uc_num_ref_idx_l0_active = |
| 1207 | ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; |
| 1208 | uc_num_ref_idx_l1_active = |
| 1209 | ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| 1210 | |
| 1211 | for(i = 0; i < uc_num_ref_idx_l0_active; i++) |
| 1212 | { |
| 1213 | ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][i]; |
Hamsalekha S | 3eb692d | 2017-09-08 13:52:05 +0530 | [diff] [blame] | 1214 | i4_poc0 = ps_pic_buff0->i4_avg_poc; |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1215 | for(j = 0; j < uc_num_ref_idx_l1_active; j++) |
| 1216 | { |
| 1217 | ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][j]; |
Hamsalekha S | 3eb692d | 2017-09-08 13:52:05 +0530 | [diff] [blame] | 1218 | i4_poc1 = ps_pic_buff1->i4_avg_poc; |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1219 | |
Hamsalekha S | 3eb692d | 2017-09-08 13:52:05 +0530 | [diff] [blame] | 1220 | if(i4_poc1 != i4_poc0) |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1221 | { |
Hamsalekha S | 3eb692d | 2017-09-08 13:52:05 +0530 | [diff] [blame] | 1222 | i4_tb = ps_dec->ps_cur_pic->i4_poc - i4_poc0; |
Isha Shrikant Kulkarni | fc7139a | 2019-01-11 12:13:14 +0530 | [diff] [blame] | 1223 | i16_tb = CLIP_S8(i4_tb); |
Hamsalekha S | 3eb692d | 2017-09-08 13:52:05 +0530 | [diff] [blame] | 1224 | i4_td = i4_poc1 - i4_poc0; |
Isha Shrikant Kulkarni | fc7139a | 2019-01-11 12:13:14 +0530 | [diff] [blame] | 1225 | i16_td = CLIP_S8(i4_td); |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1226 | i16_tx = (16384 + ABS(SIGN_POW2_DIV(i16_td, 1))) / i16_td; |
Isha Shrikant Kulkarni | fc7139a | 2019-01-11 12:13:14 +0530 | [diff] [blame] | 1227 | i2_dist_scale_factor = CLIP_S11( |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1228 | (((i16_tb * i16_tx) + 32) >> 6)); |
| 1229 | |
| 1230 | if(/*((u4_poc1 - u4_poc0) == 0) ||*/ |
| 1231 | (!(ps_pic_buff1->u1_is_short && ps_pic_buff0->u1_is_short)) |
| 1232 | || ((i2_dist_scale_factor >> 2) < -64) |
| 1233 | || ((i2_dist_scale_factor >> 2) > 128)) |
| 1234 | { |
| 1235 | /* same for forward and backward, wt=32 and Offset = 0 */ |
| 1236 | ui_temp0 = 0x00000020; |
| 1237 | ui_temp1 = 0x00000020; |
| 1238 | } |
| 1239 | else |
| 1240 | { |
| 1241 | ui_temp0 = 64 - (i2_dist_scale_factor >> 2); |
| 1242 | ui_temp1 = (i2_dist_scale_factor >> 2); |
| 1243 | } |
| 1244 | } |
| 1245 | else |
| 1246 | { |
| 1247 | ui_temp0 = 0x00000020; |
| 1248 | ui_temp1 = 0x00000020; |
| 1249 | } |
| 1250 | pu4_iwt_ofst[0] = pu4_iwt_ofst[2] = pu4_iwt_ofst[4] = ui_temp0; |
| 1251 | pu4_iwt_ofst[1] = pu4_iwt_ofst[3] = pu4_iwt_ofst[5] = ui_temp1; |
| 1252 | pu4_iwt_ofst += 6; |
| 1253 | } |
| 1254 | } |
| 1255 | if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) |
| 1256 | { |
| 1257 | UWORD8 k; |
| 1258 | WORD32 i4_cur_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; |
| 1259 | UWORD32* pu4_wt_mat = ps_dec->pu4_mbaff_wt_mat; |
| 1260 | /* Form the Implicit Weighted prediction matrix for field MBs also */ |
| 1261 | for(k = 0; k < 2; k++) |
| 1262 | { |
| 1263 | for(i = 0; i < (uc_num_ref_idx_l0_active << 1); i++) |
| 1264 | { |
| 1265 | UWORD16 u2_l0_idx; |
| 1266 | |
| 1267 | /*u2_l0_idx = (i >= uc_num_ref_idx_l0_active) |
| 1268 | ?(MAX_REF_BUFS + i - uc_num_ref_idx_l0_active) : (i) ;*/ |
| 1269 | |
| 1270 | u2_l0_idx = i >> 1; |
| 1271 | if((i & 0x01) != k) |
| 1272 | { |
| 1273 | u2_l0_idx += MAX_REF_BUFS; |
| 1274 | } |
| 1275 | ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][u2_l0_idx]; |
Hamsalekha S | 3eb692d | 2017-09-08 13:52:05 +0530 | [diff] [blame] | 1276 | i4_poc0 = ps_pic_buff0->i4_poc; |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1277 | for(j = 0; j < (uc_num_ref_idx_l1_active << 1); j++) |
| 1278 | { |
| 1279 | UWORD16 u2_l1_idx; |
| 1280 | /*u2_l1_idx = (j >= uc_num_ref_idx_l1_active) |
| 1281 | ? (MAX_REF_BUFS + j - uc_num_ref_idx_l1_active ) : (j) ;*/ |
| 1282 | |
| 1283 | u2_l1_idx = j >> 1; |
| 1284 | if((j & 0x01) != k) |
| 1285 | { |
| 1286 | u2_l1_idx += MAX_REF_BUFS; |
| 1287 | } |
| 1288 | ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][u2_l1_idx]; |
Hamsalekha S | 3eb692d | 2017-09-08 13:52:05 +0530 | [diff] [blame] | 1289 | i4_poc1 = ps_pic_buff1->i4_poc; |
| 1290 | if(i4_poc1 != i4_poc0) |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1291 | { |
Hamsalekha S | 3eb692d | 2017-09-08 13:52:05 +0530 | [diff] [blame] | 1292 | i4_tb = i4_cur_poc - i4_poc0; |
Isha Shrikant Kulkarni | fc7139a | 2019-01-11 12:13:14 +0530 | [diff] [blame] | 1293 | i16_tb = CLIP_S8(i4_tb); |
Hamsalekha S | 3eb692d | 2017-09-08 13:52:05 +0530 | [diff] [blame] | 1294 | i4_td = i4_poc1 - i4_poc0; |
Isha Shrikant Kulkarni | fc7139a | 2019-01-11 12:13:14 +0530 | [diff] [blame] | 1295 | i16_td = CLIP_S8(i4_td); |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1296 | i16_tx = (16384 + ABS(SIGN_POW2_DIV(i16_td, 1))) |
| 1297 | / i16_td; |
Isha Shrikant Kulkarni | fc7139a | 2019-01-11 12:13:14 +0530 | [diff] [blame] | 1298 | i2_dist_scale_factor = CLIP_S11( |
| 1299 | (((i16_tb * i16_tx) + 32) >> 6)); |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1300 | |
| 1301 | if(/*((u4_poc1 - u4_poc0) == 0) ||*/ |
| 1302 | (!(ps_pic_buff1->u1_is_short && ps_pic_buff0->u1_is_short)) |
| 1303 | || ((i2_dist_scale_factor >> 2) < -64) |
| 1304 | || ((i2_dist_scale_factor >> 2) > 128)) |
| 1305 | { |
| 1306 | /* same for forward and backward, wt=32 and Offset = 0 */ |
| 1307 | ui_temp0 = 0x00000020; |
| 1308 | ui_temp1 = 0x00000020; |
| 1309 | } |
| 1310 | else |
| 1311 | { |
| 1312 | ui_temp0 = 64 - (i2_dist_scale_factor >> 2); |
| 1313 | ui_temp1 = (i2_dist_scale_factor >> 2); |
| 1314 | } |
| 1315 | } |
| 1316 | else |
| 1317 | { |
| 1318 | ui_temp0 = 0x00000020; |
| 1319 | ui_temp1 = 0x00000020; |
| 1320 | } |
| 1321 | /* Store in the weight matrix */ |
| 1322 | *pu4_wt_mat++ = ui_temp0; |
| 1323 | *pu4_wt_mat++ = ui_temp1; |
| 1324 | *pu4_wt_mat++ = ui_temp0; |
| 1325 | *pu4_wt_mat++ = ui_temp1; |
| 1326 | *pu4_wt_mat++ = ui_temp0; |
| 1327 | *pu4_wt_mat++ = ui_temp1; |
| 1328 | |
| 1329 | } |
| 1330 | } |
| 1331 | i4_cur_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; |
| 1332 | } |
| 1333 | } |
| 1334 | } |
| 1335 | |
| 1336 | /*! |
| 1337 | ************************************************************************** |
| 1338 | * \if Function name : ih264d_decode_bslice \endif |
| 1339 | * |
| 1340 | * \brief |
| 1341 | * Decodes a B Slice |
| 1342 | * |
| 1343 | * |
| 1344 | * \return |
| 1345 | * 0 on Success and Error code otherwise |
| 1346 | ************************************************************************** |
| 1347 | */ |
| 1348 | WORD32 ih264d_parse_bslice(dec_struct_t * ps_dec, UWORD16 u2_first_mb_in_slice) |
| 1349 | { |
| 1350 | dec_pic_params_t * ps_pps = ps_dec->ps_cur_pps; |
| 1351 | dec_slice_params_t * ps_slice = ps_dec->ps_cur_slice; |
| 1352 | dec_bit_stream_t * ps_bitstrm = ps_dec->ps_bitstrm; |
| 1353 | UWORD8 u1_ref_idx_re_flag_lx; |
| 1354 | UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; |
| 1355 | UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; |
| 1356 | |
| 1357 | UWORD32 u4_temp, ui_temp1; |
| 1358 | WORD32 i_temp; |
| 1359 | WORD32 ret; |
| 1360 | |
| 1361 | /*--------------------------------------------------------------------*/ |
| 1362 | /* Read remaining contents of the slice header */ |
| 1363 | /*--------------------------------------------------------------------*/ |
| 1364 | { |
| 1365 | WORD8 *pi1_buf; |
| 1366 | WORD16 *pi2_mv = ps_dec->s_default_mv_pred.i2_mv; |
| 1367 | WORD32 *pi4_mv = (WORD32*)pi2_mv; |
| 1368 | WORD16 *pi16_refFrame; |
| 1369 | pi1_buf = ps_dec->s_default_mv_pred.i1_ref_frame; |
| 1370 | pi16_refFrame = (WORD16*)pi1_buf; |
| 1371 | *pi4_mv = 0; |
| 1372 | *(pi4_mv + 1) = 0; |
| 1373 | *pi16_refFrame = OUT_OF_RANGE_REF; |
| 1374 | ps_dec->s_default_mv_pred.u1_col_ref_pic_idx = (UWORD8)-1; |
| 1375 | ps_dec->s_default_mv_pred.u1_pic_type = (UWORD8)-1; |
| 1376 | } |
| 1377 | |
| 1378 | ps_slice->u1_num_ref_idx_active_override_flag = ih264d_get_bit_h264( |
| 1379 | ps_bitstrm); |
| 1380 | COPYTHECONTEXT("SH: num_ref_idx_override_flag", |
| 1381 | ps_slice->u1_num_ref_idx_active_override_flag); |
| 1382 | |
| 1383 | u4_temp = ps_dec->ps_cur_pps->u1_num_ref_idx_lx_active[0]; |
| 1384 | ui_temp1 = ps_dec->ps_cur_pps->u1_num_ref_idx_lx_active[1]; |
| 1385 | if(ps_slice->u1_num_ref_idx_active_override_flag) |
| 1386 | { |
| 1387 | u4_temp = 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| 1388 | COPYTHECONTEXT("SH: num_ref_idx_l0_active_minus1", |
| 1389 | u4_temp - 1); |
| 1390 | ui_temp1 = 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| 1391 | COPYTHECONTEXT("SH: num_ref_idx_l1_active_minus1", |
| 1392 | ui_temp1 - 1); |
| 1393 | } |
| 1394 | |
| 1395 | { |
| 1396 | UWORD8 u1_max_ref_idx = MAX_FRAMES; |
| 1397 | if(ps_slice->u1_field_pic_flag) |
| 1398 | { |
| 1399 | u1_max_ref_idx = MAX_FRAMES << 1; |
| 1400 | } |
Hamsalekha S | 208c74d | 2017-09-08 14:22:22 +0530 | [diff] [blame] | 1401 | if((u4_temp > u1_max_ref_idx) || (ui_temp1 > u1_max_ref_idx) |
| 1402 | || (u4_temp < 1) || (ui_temp1 < 1)) |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1403 | { |
| 1404 | return ERROR_NUM_REF; |
| 1405 | } |
| 1406 | ps_slice->u1_num_ref_idx_lx_active[0] = u4_temp; |
| 1407 | ps_slice->u1_num_ref_idx_lx_active[1] = ui_temp1; |
| 1408 | } |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1409 | |
Hamsalekha S | f9d3f9a | 2017-05-23 11:53:52 +0530 | [diff] [blame] | 1410 | |
| 1411 | ih264d_init_ref_idx_lx_b(ps_dec); |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1412 | /* Store the value for future slices in the same picture */ |
| 1413 | ps_dec->u1_num_ref_idx_lx_active_prev = |
| 1414 | ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; |
| 1415 | |
| 1416 | u1_ref_idx_re_flag_lx = ih264d_get_bit_h264(ps_bitstrm); |
| 1417 | COPYTHECONTEXT("SH: ref_pic_list_reordering_flag_l0",u1_ref_idx_re_flag_lx); |
| 1418 | |
| 1419 | /* Modified temporarily */ |
| 1420 | if(u1_ref_idx_re_flag_lx) |
| 1421 | { |
| 1422 | WORD8 ret; |
| 1423 | ps_dec->ps_ref_pic_buf_lx[0] = ps_dec->ps_dpb_mgr->ps_mod_dpb[0]; |
| 1424 | ret = ih264d_ref_idx_reordering(ps_dec, 0); |
| 1425 | if(ret == -1) |
| 1426 | return ERROR_REFIDX_ORDER_T; |
| 1427 | } |
| 1428 | else |
| 1429 | ps_dec->ps_ref_pic_buf_lx[0] = ps_dec->ps_dpb_mgr->ps_init_dpb[0]; |
| 1430 | |
| 1431 | u1_ref_idx_re_flag_lx = ih264d_get_bit_h264(ps_bitstrm); |
| 1432 | COPYTHECONTEXT("SH: ref_pic_list_reordering_flag_l1",u1_ref_idx_re_flag_lx); |
| 1433 | |
| 1434 | /* Modified temporarily */ |
| 1435 | if(u1_ref_idx_re_flag_lx) |
| 1436 | { |
| 1437 | WORD8 ret; |
| 1438 | ps_dec->ps_ref_pic_buf_lx[1] = ps_dec->ps_dpb_mgr->ps_mod_dpb[1]; |
| 1439 | ret = ih264d_ref_idx_reordering(ps_dec, 1); |
| 1440 | if(ret == -1) |
| 1441 | return ERROR_REFIDX_ORDER_T; |
| 1442 | } |
| 1443 | else |
| 1444 | ps_dec->ps_ref_pic_buf_lx[1] = ps_dec->ps_dpb_mgr->ps_init_dpb[1]; |
| 1445 | |
| 1446 | /* Create refIdx to POC mapping */ |
| 1447 | { |
| 1448 | void **ppv_map_ref_idx_to_poc_lx; |
| 1449 | WORD8 idx; |
| 1450 | struct pic_buffer_t *ps_pic; |
| 1451 | |
| 1452 | ppv_map_ref_idx_to_poc_lx = ps_dec->ppv_map_ref_idx_to_poc + FRM_LIST_L0; |
| 1453 | ppv_map_ref_idx_to_poc_lx[0] = 0; |
| 1454 | ppv_map_ref_idx_to_poc_lx++; |
| 1455 | for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; |
| 1456 | idx++) |
| 1457 | { |
| 1458 | ps_pic = ps_dec->ps_ref_pic_buf_lx[0][idx]; |
| 1459 | ppv_map_ref_idx_to_poc_lx[idx] = (ps_pic->pu1_buf1); |
| 1460 | } |
| 1461 | |
| 1462 | ppv_map_ref_idx_to_poc_lx = ps_dec->ppv_map_ref_idx_to_poc + FRM_LIST_L1; |
| 1463 | |
| 1464 | ppv_map_ref_idx_to_poc_lx[0] = 0; |
| 1465 | ppv_map_ref_idx_to_poc_lx++; |
| 1466 | for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| 1467 | idx++) |
| 1468 | { |
| 1469 | ps_pic = ps_dec->ps_ref_pic_buf_lx[1][idx]; |
| 1470 | ppv_map_ref_idx_to_poc_lx[idx] = (ps_pic->pu1_buf1); |
| 1471 | } |
| 1472 | |
| 1473 | if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) |
| 1474 | { |
| 1475 | void **ppv_map_ref_idx_to_poc_lx_t, **ppv_map_ref_idx_to_poc_lx_b; |
| 1476 | |
| 1477 | ppv_map_ref_idx_to_poc_lx_t = ps_dec->ppv_map_ref_idx_to_poc |
| 1478 | + TOP_LIST_FLD_L0; |
| 1479 | ppv_map_ref_idx_to_poc_lx_b = ps_dec->ppv_map_ref_idx_to_poc |
| 1480 | + BOT_LIST_FLD_L0; |
| 1481 | |
| 1482 | ppv_map_ref_idx_to_poc_lx_t[0] = 0; |
| 1483 | ppv_map_ref_idx_to_poc_lx_t++; |
| 1484 | ppv_map_ref_idx_to_poc_lx_b[0] = 0; |
| 1485 | ppv_map_ref_idx_to_poc_lx_b++; |
| 1486 | for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; |
| 1487 | idx++) |
| 1488 | { |
| 1489 | ps_pic = ps_dec->ps_ref_pic_buf_lx[0][idx]; |
| 1490 | ppv_map_ref_idx_to_poc_lx_t[0] = (ps_pic->pu1_buf1); |
| 1491 | ppv_map_ref_idx_to_poc_lx_b[1] = (ps_pic->pu1_buf1); |
| 1492 | |
| 1493 | ppv_map_ref_idx_to_poc_lx_b[0] = (ps_pic->pu1_buf1) + 1; |
| 1494 | ppv_map_ref_idx_to_poc_lx_t[1] = (ps_pic->pu1_buf1) + 1; |
| 1495 | |
| 1496 | ppv_map_ref_idx_to_poc_lx_t += 2; |
| 1497 | ppv_map_ref_idx_to_poc_lx_b += 2; |
| 1498 | } |
| 1499 | |
| 1500 | ppv_map_ref_idx_to_poc_lx_t = ps_dec->ppv_map_ref_idx_to_poc |
| 1501 | + TOP_LIST_FLD_L1; |
| 1502 | ppv_map_ref_idx_to_poc_lx_b = ps_dec->ppv_map_ref_idx_to_poc |
| 1503 | + BOT_LIST_FLD_L1; |
| 1504 | |
| 1505 | ppv_map_ref_idx_to_poc_lx_t[0] = 0; |
| 1506 | ppv_map_ref_idx_to_poc_lx_t++; |
| 1507 | ppv_map_ref_idx_to_poc_lx_b[0] = 0; |
| 1508 | ppv_map_ref_idx_to_poc_lx_b++; |
| 1509 | for(idx = 0; idx < ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| 1510 | idx++) |
| 1511 | { |
| 1512 | UWORD8 u1_tmp_idx = idx << 1; |
| 1513 | ps_pic = ps_dec->ps_ref_pic_buf_lx[1][idx]; |
| 1514 | ppv_map_ref_idx_to_poc_lx_t[u1_tmp_idx] = (ps_pic->pu1_buf1); |
| 1515 | ppv_map_ref_idx_to_poc_lx_b[u1_tmp_idx + 1] = (ps_pic->pu1_buf1); |
| 1516 | |
| 1517 | ppv_map_ref_idx_to_poc_lx_b[u1_tmp_idx] = (ps_pic->pu1_buf1) + 1; |
| 1518 | ppv_map_ref_idx_to_poc_lx_t[u1_tmp_idx + 1] = (ps_pic->pu1_buf1) + 1; |
| 1519 | |
| 1520 | } |
| 1521 | } |
| 1522 | |
| 1523 | if(ps_dec->u4_num_cores >= 3) |
| 1524 | { |
| 1525 | WORD32 num_entries; |
| 1526 | WORD32 size; |
Harish Mahendrakar | 251b007 | 2015-08-04 09:55:15 +0530 | [diff] [blame] | 1527 | num_entries = MAX_FRAMES; |
| 1528 | if((1 >= ps_dec->ps_cur_sps->u1_num_ref_frames) && |
| 1529 | (0 == ps_dec->i4_display_delay)) |
| 1530 | { |
| 1531 | num_entries = 1; |
| 1532 | } |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1533 | |
Harish Mahendrakar | 251b007 | 2015-08-04 09:55:15 +0530 | [diff] [blame] | 1534 | num_entries = ((2 * num_entries) + 1); |
Hamsalekha S | a925a6b | 2017-04-21 11:01:52 +0530 | [diff] [blame] | 1535 | num_entries *= 2; |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1536 | |
| 1537 | size = num_entries * sizeof(void *); |
| 1538 | size += PAD_MAP_IDX_POC * sizeof(void *); |
| 1539 | |
| 1540 | memcpy((void *)ps_dec->ps_parse_cur_slice->ppv_map_ref_idx_to_poc, |
| 1541 | ps_dec->ppv_map_ref_idx_to_poc, |
| 1542 | size); |
| 1543 | } |
| 1544 | |
| 1545 | } |
| 1546 | |
| 1547 | if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag |
| 1548 | && (ps_dec->ps_cur_slice->u1_field_pic_flag == 0)) |
| 1549 | { |
| 1550 | ih264d_convert_frm_mbaff_list(ps_dec); |
| 1551 | } |
| 1552 | |
| 1553 | if(ps_pps->u1_wted_bipred_idc == 1) |
| 1554 | { |
| 1555 | ret = ih264d_parse_pred_weight_table(ps_slice, ps_bitstrm); |
| 1556 | if(ret != OK) |
| 1557 | return ret; |
| 1558 | ih264d_form_pred_weight_matrix(ps_dec); |
| 1559 | ps_dec->pu4_wt_ofsts = ps_dec->pu4_wts_ofsts_mat; |
| 1560 | } |
| 1561 | else if(ps_pps->u1_wted_bipred_idc == 2) |
| 1562 | { |
| 1563 | /* Implicit Weighted prediction */ |
| 1564 | ps_slice->u2_log2Y_crwd = 0x0505; |
| 1565 | ps_dec->pu4_wt_ofsts = ps_dec->pu4_wts_ofsts_mat; |
| 1566 | ih264d_get_implicit_weights(ps_dec); |
| 1567 | } |
| 1568 | else |
| 1569 | ps_dec->ps_cur_slice->u2_log2Y_crwd = 0; |
| 1570 | |
| 1571 | ps_dec->ps_parse_cur_slice->u2_log2Y_crwd = |
| 1572 | ps_dec->ps_cur_slice->u2_log2Y_crwd; |
| 1573 | |
| 1574 | /* G050 */ |
| 1575 | if(ps_slice->u1_nal_ref_idc != 0) |
| 1576 | { |
| 1577 | if(!ps_dec->ps_dpb_cmds->u1_dpb_commands_read) |
Naveen Kumar Ponnusamy | 943323f | 2015-12-04 16:51:43 +0530 | [diff] [blame] | 1578 | { |
| 1579 | i_temp = ih264d_read_mmco_commands(ps_dec); |
| 1580 | if (i_temp < 0) |
| 1581 | { |
| 1582 | return ERROR_DBP_MANAGER_T; |
| 1583 | } |
| 1584 | ps_dec->u4_bitoffset = i_temp; |
| 1585 | } |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1586 | else |
| 1587 | ps_bitstrm->u4_ofst += ps_dec->u4_bitoffset; |
| 1588 | } |
| 1589 | /* G050 */ |
| 1590 | |
| 1591 | if(ps_pps->u1_entropy_coding_mode == CABAC) |
| 1592 | { |
| 1593 | u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| 1594 | if(u4_temp > MAX_CABAC_INIT_IDC) |
| 1595 | { |
| 1596 | return ERROR_INV_SLICE_HDR_T; |
| 1597 | } |
| 1598 | ps_slice->u1_cabac_init_idc = u4_temp; |
| 1599 | COPYTHECONTEXT("SH: cabac_init_idc",ps_slice->u1_cabac_init_idc); |
| 1600 | } |
| 1601 | |
| 1602 | /* Read slice_qp_delta */ |
| 1603 | i_temp = ps_pps->u1_pic_init_qp |
| 1604 | + ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| 1605 | if((i_temp < 0) || (i_temp > 51)) |
| 1606 | { |
| 1607 | return ERROR_INV_RANGE_QP_T; |
| 1608 | } |
| 1609 | ps_slice->u1_slice_qp = i_temp; |
| 1610 | COPYTHECONTEXT("SH: slice_qp_delta", |
| 1611 | (WORD8)(ps_slice->u1_slice_qp - ps_pps->u1_pic_init_qp)); |
| 1612 | |
| 1613 | if(ps_pps->u1_deblocking_filter_parameters_present_flag == 1) |
| 1614 | { |
| 1615 | u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| 1616 | if(u4_temp > SLICE_BOUNDARY_DBLK_DISABLED) |
| 1617 | { |
| 1618 | return ERROR_INV_SLICE_HDR_T; |
| 1619 | } COPYTHECONTEXT("SH: disable_deblocking_filter_idc", u4_temp); |
| 1620 | ps_slice->u1_disable_dblk_filter_idc = u4_temp; |
| 1621 | if(u4_temp != 1) |
| 1622 | { |
| 1623 | i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf) |
| 1624 | << 1; |
| 1625 | if((MIN_DBLK_FIL_OFF > i_temp) || (i_temp > MAX_DBLK_FIL_OFF)) |
| 1626 | { |
| 1627 | return ERROR_INV_SLICE_HDR_T; |
| 1628 | } |
| 1629 | ps_slice->i1_slice_alpha_c0_offset = i_temp; |
| 1630 | COPYTHECONTEXT("SH: slice_alpha_c0_offset_div2", |
| 1631 | ps_slice->i1_slice_alpha_c0_offset >> 1); |
| 1632 | |
| 1633 | i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf) |
| 1634 | << 1; |
| 1635 | if((MIN_DBLK_FIL_OFF > i_temp) || (i_temp > MAX_DBLK_FIL_OFF)) |
| 1636 | { |
| 1637 | return ERROR_INV_SLICE_HDR_T; |
| 1638 | } |
| 1639 | ps_slice->i1_slice_beta_offset = i_temp; |
| 1640 | COPYTHECONTEXT("SH: slice_beta_offset_div2", |
| 1641 | ps_slice->i1_slice_beta_offset >> 1); |
| 1642 | |
| 1643 | } |
| 1644 | else |
| 1645 | { |
| 1646 | ps_slice->i1_slice_alpha_c0_offset = 0; |
| 1647 | ps_slice->i1_slice_beta_offset = 0; |
| 1648 | } |
| 1649 | } |
| 1650 | else |
| 1651 | { |
| 1652 | ps_slice->u1_disable_dblk_filter_idc = 0; |
| 1653 | ps_slice->i1_slice_alpha_c0_offset = 0; |
| 1654 | ps_slice->i1_slice_beta_offset = 0; |
| 1655 | } |
| 1656 | |
Marco Nelissen | 8ef4c3f | 2015-06-03 07:26:32 -0700 | [diff] [blame] | 1657 | ps_dec->u1_slice_header_done = 2; |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1658 | |
| 1659 | if(ps_pps->u1_entropy_coding_mode) |
| 1660 | { |
| 1661 | SWITCHOFFTRACE; SWITCHONTRACECABAC; |
| 1662 | ps_dec->pf_parse_inter_slice = ih264d_parse_inter_slice_data_cabac; |
| 1663 | ps_dec->pf_parse_inter_mb = ih264d_parse_bmb_cabac; |
| 1664 | ih264d_init_cabac_contexts(B_SLICE, ps_dec); |
| 1665 | |
| 1666 | if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) |
| 1667 | ps_dec->pf_get_mb_info = ih264d_get_mb_info_cabac_mbaff; |
| 1668 | else |
| 1669 | ps_dec->pf_get_mb_info = ih264d_get_mb_info_cabac_nonmbaff; |
| 1670 | } |
| 1671 | else |
| 1672 | { |
| 1673 | SWITCHONTRACE; SWITCHOFFTRACECABAC; |
| 1674 | ps_dec->pf_parse_inter_slice = ih264d_parse_inter_slice_data_cavlc; |
| 1675 | ps_dec->pf_parse_inter_mb = ih264d_parse_bmb_cavlc; |
| 1676 | if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag) |
| 1677 | ps_dec->pf_get_mb_info = ih264d_get_mb_info_cavlc_mbaff; |
| 1678 | else |
| 1679 | ps_dec->pf_get_mb_info = ih264d_get_mb_info_cavlc_nonmbaff; |
| 1680 | } |
| 1681 | |
| 1682 | ret = ih264d_cal_col_pic(ps_dec); |
| 1683 | if(ret != OK) |
| 1684 | return ret; |
| 1685 | ps_dec->u1_B = 1; |
| 1686 | ps_dec->pf_mvpred_ref_tfr_nby2mb = ih264d_mv_pred_ref_tfr_nby2_bmb; |
| 1687 | ret = ps_dec->pf_parse_inter_slice(ps_dec, ps_slice, u2_first_mb_in_slice); |
| 1688 | if(ret != OK) |
| 1689 | return ret; |
| 1690 | return OK; |
| 1691 | } |
| 1692 | |