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_process_bslice.c |
| 23 | * |
| 24 | * \brief |
| 25 | * Contains routines that decode B slice type |
| 26 | * |
| 27 | * Detailed_description |
| 28 | * |
| 29 | * \date |
| 30 | * 21/12/2002 |
| 31 | * |
| 32 | * \author NS |
| 33 | ************************************************************************** |
| 34 | */ |
| 35 | #include "ih264_typedefs.h" |
| 36 | #include "ih264_macros.h" |
| 37 | #include "ih264_platform_macros.h" |
| 38 | |
| 39 | #include <string.h> |
| 40 | #include "ih264d_structs.h" |
| 41 | #include "ih264d_bitstrm.h" |
| 42 | #include "ih264d_parse_cavlc.h" |
| 43 | #include "ih264d_mb_utils.h" |
| 44 | #include "ih264d_mvpred.h" |
| 45 | #include "ih264d_inter_pred.h" |
| 46 | #include "ih264d_process_pslice.h" |
| 47 | #include "ih264d_error_handler.h" |
| 48 | #include "ih264d_tables.h" |
| 49 | #include "ih264d_parse_slice.h" |
| 50 | #include "ih264d_process_pslice.h" |
| 51 | #include "ih264d_process_bslice.h" |
| 52 | #include "ih264d_tables.h" |
| 53 | #include "ih264d_parse_islice.h" |
| 54 | #include "ih264d_mvpred.h" |
| 55 | |
| 56 | void ih264d_init_cabac_contexts(UWORD8 u1_slice_type, dec_struct_t * ps_dec); |
| 57 | //UWORD32 g_hits = 0; |
| 58 | //UWORD32 g_miss = 0; |
| 59 | /*! |
| 60 | ************************************************************************** |
| 61 | * \if Function name : ih264d_decode_spatial_direct \endif |
| 62 | * |
| 63 | * \brief |
| 64 | * Decodes spatial direct mode. |
| 65 | * |
| 66 | * \return |
| 67 | * None. |
| 68 | * Arunoday T |
| 69 | ************************************************************************** |
| 70 | */ |
| 71 | WORD32 ih264d_decode_spatial_direct(dec_struct_t * ps_dec, |
| 72 | UWORD8 u1_wd_x, |
| 73 | dec_mb_info_t * ps_cur_mb_info, |
| 74 | UWORD8 u1_mb_num) |
| 75 | { |
| 76 | mv_pred_t s_mv_pred, *ps_mv; |
| 77 | UWORD8 u1_col_zero_flag, u1_sub_mb_num, u1_direct_zero_pred_flag = 0; |
| 78 | UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; |
| 79 | mv_pred_t *ps_mv_ntop_start; |
| 80 | mv_pred_t *ps_mv_nmb_start = ps_dec->ps_mv_cur + (u1_mb_num << 4); |
| 81 | UWORD8 partition_size, sub_partition, u1_mb_partw, u1_mb_parth; |
| 82 | UWORD8 i; |
| 83 | WORD8 i1_pred, i1_ref_frame0, i1_ref_frame1; |
| 84 | struct pic_buffer_t *ps_ref_frame = NULL, *ps_col_pic, *ps_pic_buff0 = NULL, |
| 85 | *ps_pic_buff1 = NULL; |
| 86 | |
| 87 | UWORD8 u1_zero_pred_cond_f, u1_zero_pred_cond_b; |
| 88 | WORD16 i2_def_mv[2], i2_spat_pred_mv[4], *pi2_final_mv0, *pi2_final_mv1; |
| 89 | UWORD16 ui2_mask_fwd = 0, ui2_mask_bwd = 0, u2_mask = 0; |
| 90 | UWORD32 *pui32_weight_ofsts = NULL; |
| 91 | directmv_t s_mvdirect; |
| 92 | UWORD8 u1_colz; |
| 93 | UWORD8 u1_final_ref_idx = 0; |
| 94 | const UWORD8 *pu1_mb_parth = (const UWORD8 *)gau1_ih264d_mb_parth; |
| 95 | const UWORD8 *pu1_mb_partw = (const UWORD8 *)gau1_ih264d_mb_partw; |
| 96 | const UWORD16 sub_mask_table[] = |
| 97 | { 0x33, 0x3, 0x11, 0x1 }; |
| 98 | const UWORD16 mask_table[] = |
| 99 | { 0xffff, /*16x16 NA */ |
| 100 | 0xff, /* 16x8*/ |
| 101 | 0x3333, /* 8x16*/ |
| 102 | 0x33 };/* 8x8*/ |
| 103 | mv_pred_t s_temp_mv_pred; |
| 104 | WORD32 ret = 0; |
| 105 | |
| 106 | /* CHANGED CODE */ |
| 107 | ps_mv_ntop_start = ps_dec->ps_mv_cur + (u1_mb_num << 4) |
| 108 | - (ps_dec->u2_frm_wd_in_mbs << (4 + u1_mbaff)) + 12; |
| 109 | |
| 110 | /* assign default values for MotionVector as zero */ |
| 111 | i2_def_mv[0] = 0; |
| 112 | i2_def_mv[1] = 0; |
| 113 | |
| 114 | u1_direct_zero_pred_flag = ps_dec->pf_mvpred(ps_dec, ps_cur_mb_info, ps_mv_nmb_start, |
| 115 | ps_mv_ntop_start, &s_mv_pred, 0, 4, |
| 116 | 0, 1, B_DIRECT_SPATIAL); |
| 117 | |
| 118 | i2_spat_pred_mv[0] = s_mv_pred.i2_mv[0]; |
| 119 | i2_spat_pred_mv[1] = s_mv_pred.i2_mv[1]; |
| 120 | i2_spat_pred_mv[2] = s_mv_pred.i2_mv[2]; |
| 121 | i2_spat_pred_mv[3] = s_mv_pred.i2_mv[3]; |
| 122 | |
| 123 | i1_ref_frame0 = s_mv_pred.i1_ref_frame[0]; |
| 124 | i1_ref_frame1 = s_mv_pred.i1_ref_frame[1]; |
| 125 | |
| 126 | i1_ref_frame0 = (i1_ref_frame0 < 0) ? -1 : i1_ref_frame0; |
| 127 | i1_ref_frame1 = (i1_ref_frame1 < 0) ? -1 : i1_ref_frame1; |
| 128 | |
| 129 | i1_pred = 0; |
| 130 | |
| 131 | { |
| 132 | WORD8 u1_ref_idx, u1_ref_idx1; |
| 133 | UWORD32 uc_Idx, uc_Idx1; |
| 134 | UWORD8 u1_scale_ref = (ps_dec->ps_cur_slice->u1_mbaff_frame_flag |
| 135 | && ps_cur_mb_info->u1_mb_field_decodingflag); |
| 136 | u1_final_ref_idx = i1_ref_frame0; |
| 137 | if(i1_ref_frame0 >= 0) |
| 138 | { |
| 139 | /* convert RefIdx if it is MbAff */ |
| 140 | u1_ref_idx = i1_ref_frame0; |
| 141 | u1_ref_idx1 = i1_ref_frame0; |
| 142 | if(u1_scale_ref) |
| 143 | { |
| 144 | u1_ref_idx1 = u1_ref_idx >> 1; |
| 145 | if((u1_ref_idx & 0x01) != (1 - ps_cur_mb_info->u1_topmb)) |
| 146 | u1_ref_idx1 += MAX_REF_BUFS; |
| 147 | } |
| 148 | /* If i1_ref_frame0 < 0 then refIdxCol is obtained from ps_pic_buff1 */ |
| 149 | ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][u1_ref_idx1]; |
| 150 | ps_ref_frame = ps_pic_buff0; |
| 151 | i1_pred = PRED_L0; |
| 152 | } |
| 153 | |
| 154 | if(i1_ref_frame1 >= 0) |
| 155 | { |
| 156 | /* convert RefIdx if it is MbAff */ |
| 157 | u1_ref_idx = i1_ref_frame1; |
| 158 | u1_ref_idx1 = i1_ref_frame1; |
| 159 | if(u1_scale_ref) |
| 160 | { |
| 161 | u1_ref_idx1 = u1_ref_idx >> 1; |
| 162 | if((u1_ref_idx & 0x01) != (1 - ps_cur_mb_info->u1_topmb)) |
| 163 | u1_ref_idx1 += MAX_REF_BUFS; |
| 164 | } |
| 165 | ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][u1_ref_idx1]; |
| 166 | i1_pred = i1_pred | PRED_L1; |
| 167 | } |
| 168 | if(i1_ref_frame0 < 0) |
| 169 | { |
| 170 | ps_ref_frame = ps_pic_buff1; |
| 171 | u1_final_ref_idx = i1_ref_frame1; |
| 172 | } |
| 173 | |
| 174 | u1_zero_pred_cond_f = (u1_direct_zero_pred_flag) || (i1_ref_frame0 < 0); |
| 175 | u1_zero_pred_cond_b = (u1_direct_zero_pred_flag) || (i1_ref_frame1 < 0); |
| 176 | |
| 177 | if(ps_dec->ps_cur_pps->u1_wted_bipred_idc) |
| 178 | { |
| 179 | uc_Idx = ((i1_ref_frame0 < 1) ? 0 : i1_ref_frame0) |
| 180 | * ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| 181 | if(u1_scale_ref) |
| 182 | uc_Idx >>= 1; |
| 183 | uc_Idx1 = (i1_ref_frame1 < 0) ? 0 : i1_ref_frame1; |
| 184 | uc_Idx += (u1_scale_ref) ? (uc_Idx1 >> 1) : uc_Idx1; |
| 185 | pui32_weight_ofsts = |
| 186 | (UWORD32*)&ps_dec->pu4_wt_ofsts[2 * X3(uc_Idx)]; |
| 187 | |
| 188 | if(i1_ref_frame0 < 0) |
| 189 | pui32_weight_ofsts += 1; |
| 190 | |
| 191 | if(u1_scale_ref && (ps_dec->ps_cur_pps->u1_wted_bipred_idc == 2)) |
| 192 | { |
| 193 | WORD16 i2_ref_idx; |
| 194 | i2_ref_idx = MAX(i1_ref_frame0, 0); |
| 195 | i2_ref_idx *= (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1] |
| 196 | << 1); |
| 197 | i2_ref_idx += MAX(i1_ref_frame1, 0); |
| 198 | if(!ps_cur_mb_info->u1_topmb) |
| 199 | i2_ref_idx += |
| 200 | (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0] |
| 201 | << 1) |
| 202 | * (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1] |
| 203 | << 1); |
| 204 | pui32_weight_ofsts = (UWORD32*)&ps_dec->pu4_mbaff_wt_mat[2 |
| 205 | * X3(i2_ref_idx)]; |
| 206 | } |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | s_temp_mv_pred.i1_ref_frame[0] = i1_ref_frame0; |
| 211 | s_temp_mv_pred.i1_ref_frame[1] = i1_ref_frame1; |
| 212 | s_temp_mv_pred.u1_col_ref_pic_idx = ps_ref_frame->u1_mv_buf_id; |
| 213 | s_temp_mv_pred.u1_pic_type = ps_ref_frame->u1_pic_type; |
| 214 | |
| 215 | /**********************************************************************/ |
| 216 | /* Call the function which gets the number of partitions and */ |
| 217 | /* partition info of colocated Mb */ |
| 218 | /**********************************************************************/ |
| 219 | |
| 220 | ps_dec->pf_parse_mvdirect(ps_dec, ps_dec->ps_col_pic, &s_mvdirect, u1_wd_x, |
| 221 | ps_dec->i4_submb_ofst, ps_cur_mb_info); |
| 222 | ps_col_pic = ps_dec->ps_col_pic; |
| 223 | if((s_mvdirect.u1_col_zeroflag_change == 0) || u1_direct_zero_pred_flag) |
| 224 | { |
| 225 | WORD16 i2_mv_x, i2_mv_y, i2_mvX1, i2_mvY1; |
| 226 | /* Most probable case */ |
| 227 | u1_col_zero_flag = *(ps_col_pic->pu1_col_zero_flag |
| 228 | + s_mvdirect.i4_mv_indices[0]); |
| 229 | u1_col_zero_flag = u1_col_zero_flag & 0x01; |
| 230 | |
| 231 | if(u1_zero_pred_cond_f || ((i1_ref_frame0 == 0) && (u1_col_zero_flag == 1))) |
| 232 | { |
| 233 | i2_mv_x = 0; |
| 234 | i2_mv_y = 0; |
| 235 | } |
| 236 | else |
| 237 | { |
| 238 | i2_mv_x = i2_spat_pred_mv[0]; |
| 239 | i2_mv_y = i2_spat_pred_mv[1]; |
| 240 | |
| 241 | } |
| 242 | |
| 243 | if(u1_zero_pred_cond_b || ((i1_ref_frame1 == 0) && (u1_col_zero_flag == 1))) |
| 244 | { |
| 245 | i2_mvX1 = 0; |
| 246 | i2_mvY1 = 0; |
| 247 | } |
| 248 | else |
| 249 | { |
| 250 | i2_mvX1 = i2_spat_pred_mv[2]; |
| 251 | i2_mvY1 = i2_spat_pred_mv[3]; |
| 252 | } |
| 253 | |
| 254 | u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| 255 | u1_mb_partw = (u1_wd_x >> 2); |
| 256 | |
| 257 | |
| 258 | if(i1_ref_frame0 >= 0) |
| 259 | { |
| 260 | { |
| 261 | pred_info_pkd_t *ps_pred_pkd; |
| 262 | WORD16 i2_mv[2]; |
| 263 | WORD8 i1_ref_idx= 0; |
| 264 | |
| 265 | i2_mv[0] = i2_mv_x; |
| 266 | i2_mv[1] = i2_mv_y; |
| 267 | |
| 268 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 269 | ih264d_fill_pred_info(i2_mv,u1_mb_partw,u1_mb_partw,u1_sub_mb_num,i1_pred, |
| 270 | ps_pred_pkd,ps_pic_buff0->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| 271 | ps_pic_buff0->u1_pic_type); |
| 272 | ps_dec->u4_pred_info_pkd_idx++; |
| 273 | ps_cur_mb_info->u1_num_pred_parts++; |
| 274 | |
| 275 | |
| 276 | } |
| 277 | |
| 278 | } |
| 279 | |
| 280 | if(i1_ref_frame1 >= 0) |
| 281 | { |
| 282 | { |
| 283 | pred_info_pkd_t *ps_pred_pkd; |
| 284 | WORD16 i2_mv[2]; |
| 285 | WORD8 i1_ref_idx= 0; |
| 286 | |
| 287 | i2_mv[0] = i2_mvX1; |
| 288 | i2_mv[1] = i2_mvY1; |
| 289 | |
| 290 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 291 | ih264d_fill_pred_info(i2_mv,u1_mb_partw,u1_mb_partw,u1_sub_mb_num,i1_pred, |
| 292 | ps_pred_pkd,ps_pic_buff1->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| 293 | ps_pic_buff1->u1_pic_type); |
| 294 | ps_dec->u4_pred_info_pkd_idx++; |
| 295 | ps_cur_mb_info->u1_num_pred_parts++; |
| 296 | |
| 297 | |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | |
| 302 | /* Replication optimisation */ |
| 303 | s_temp_mv_pred.i2_mv[0] = i2_mv_x; |
| 304 | s_temp_mv_pred.i2_mv[1] = i2_mv_y; |
| 305 | s_temp_mv_pred.i2_mv[2] = i2_mvX1; |
| 306 | s_temp_mv_pred.i2_mv[3] = i2_mvY1; |
| 307 | |
| 308 | /* Calculating colocated zero information */ |
| 309 | { |
| 310 | /*************************************/ |
| 311 | /* If(bit2 and bit3 set) */ |
| 312 | /* then */ |
| 313 | /* (bit0 and bit1) => submmbmode */ |
| 314 | /* (bit2 and bit3) => mbmode */ |
| 315 | /* else */ |
| 316 | /* (bit0 and bit1) => mbmode */ |
| 317 | /*************************************/ |
| 318 | /*UWORD8 u1_packed_mb_sub_mb_mode = sub_partition ? |
| 319 | (s_mvdirect.i1_partitionsize[0]) : ((s_mvdirect.i1_partitionsize[0]) << 2);*/ |
| 320 | UWORD8 u1_packed_mb_sub_mb_mode = (u1_mb_partw == 2) ? 0x03 : 0; |
| 321 | |
| 322 | if(i1_ref_frame0 < 0) |
| 323 | { |
| 324 | i2_mv_x = i2_mvX1; |
| 325 | i2_mv_y = i2_mvY1; |
| 326 | } |
| 327 | |
| 328 | /* Change from left shift 4 to 6 - Varun */ |
| 329 | u1_colz = (ps_cur_mb_info->u1_mb_field_decodingflag << 1) |
| 330 | | ((u1_final_ref_idx == 0) && (ABS(i2_mv_x) <= 1) |
| 331 | && (ABS(i2_mv_y) <= 1)); |
| 332 | u1_colz |= (u1_packed_mb_sub_mb_mode << 6); |
| 333 | } |
| 334 | ps_mv = ps_mv_nmb_start + u1_sub_mb_num; |
| 335 | ih264d_rep_mv_colz(ps_dec, &s_temp_mv_pred, ps_mv, u1_sub_mb_num, u1_colz, |
| 336 | u1_mb_partw, u1_mb_partw); |
| 337 | if(u1_wd_x == MB_SIZE) |
| 338 | ps_dec->u1_currB_type = 0; |
| 339 | |
| 340 | |
| 341 | |
| 342 | return OK; |
| 343 | } |
| 344 | /***************************************************************************/ |
| 345 | /* If present MB is 16x16 and the partition of colocated Mb is >= PRED_8x8 */ |
| 346 | /* i.e 8x8 or less than 8x8 partitions then set up DMA for (0,0) and */ |
| 347 | /* spatially predicted motion vector and do the multiplexing after */ |
| 348 | /* motion compensation */ |
| 349 | /***************************************************************************/ |
| 350 | |
| 351 | |
| 352 | if((u1_wd_x == MB_SIZE) && (s_mvdirect.i1_num_partitions > 2)) |
| 353 | { |
| 354 | ps_cur_mb_info->u1_Mux = 1; |
| 355 | if(i1_ref_frame0 >= 0) |
| 356 | { |
| 357 | |
| 358 | { |
| 359 | pred_info_pkd_t *ps_pred_pkd; |
| 360 | WORD8 i1_ref_idx= 0; |
| 361 | |
| 362 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 363 | ih264d_fill_pred_info(&(i2_spat_pred_mv[0]),4,4,0,i1_pred, |
| 364 | ps_pred_pkd,ps_pic_buff0->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| 365 | ps_pic_buff0->u1_pic_type); |
| 366 | ps_dec->u4_pred_info_pkd_idx++; |
| 367 | ps_cur_mb_info->u1_num_pred_parts++; |
| 368 | |
| 369 | |
| 370 | } |
| 371 | |
| 372 | /****** (0,0) Motion vectors DMA *****/ |
| 373 | { |
| 374 | pred_info_pkd_t *ps_pred_pkd; |
| 375 | WORD16 i2_mv[2]; |
| 376 | WORD8 i1_ref_idx= 0; |
| 377 | |
| 378 | i2_mv[0] = 0; |
| 379 | i2_mv[1] = 0; |
| 380 | |
| 381 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 382 | ih264d_fill_pred_info(i2_mv,4,4,0,i1_pred, |
| 383 | ps_pred_pkd,ps_pic_buff0->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| 384 | ps_pic_buff0->u1_pic_type); |
| 385 | ps_dec->u4_pred_info_pkd_idx++; |
| 386 | ps_cur_mb_info->u1_num_pred_parts++; |
| 387 | |
| 388 | |
| 389 | } |
| 390 | } |
| 391 | if(i1_ref_frame1 >= 0) |
| 392 | { |
| 393 | { |
| 394 | pred_info_pkd_t *ps_pred_pkd; |
| 395 | WORD16 i2_mv[2]; |
| 396 | WORD8 i1_ref_idx= 0; |
| 397 | |
| 398 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 399 | ih264d_fill_pred_info(&(i2_spat_pred_mv[2]),4,4,0,i1_pred, |
| 400 | ps_pred_pkd,ps_pic_buff1->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| 401 | ps_pic_buff1->u1_pic_type); |
| 402 | ps_dec->u4_pred_info_pkd_idx++; |
| 403 | ps_cur_mb_info->u1_num_pred_parts++; |
| 404 | |
| 405 | |
| 406 | } |
| 407 | |
| 408 | /****** (0,0) Motion vectors DMA *****/ |
| 409 | |
| 410 | { |
| 411 | pred_info_pkd_t *ps_pred_pkd; |
| 412 | WORD16 i2_mv[2]; |
| 413 | WORD8 i1_ref_idx= 0; |
| 414 | |
| 415 | i2_mv[0] = 0; |
| 416 | i2_mv[1] = 0; |
| 417 | |
| 418 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 419 | ih264d_fill_pred_info(i2_mv,4,4,0,i1_pred, |
| 420 | ps_pred_pkd,ps_pic_buff1->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| 421 | ps_pic_buff1->u1_pic_type); |
| 422 | ps_dec->u4_pred_info_pkd_idx++; |
| 423 | ps_cur_mb_info->u1_num_pred_parts++; |
| 424 | |
| 425 | |
| 426 | } |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | /*u1_col = *(ps_col_pic->pu1_col_zero_flag + s_mvdirect.i4_mv_indices[0]); |
| 431 | u1_col &= 1; |
| 432 | u1_init = 0;*/ |
| 433 | |
| 434 | for(i = 0; i < s_mvdirect.i1_num_partitions; i++) |
| 435 | { |
| 436 | partition_size = s_mvdirect.i1_partitionsize[i]; |
| 437 | u1_sub_mb_num = s_mvdirect.i1_submb_num[i]; |
| 438 | |
| 439 | sub_partition = partition_size >> 2; |
| 440 | partition_size &= 0x3; |
| 441 | u1_mb_partw = pu1_mb_partw[partition_size]; |
| 442 | u1_mb_parth = pu1_mb_parth[partition_size]; |
| 443 | u2_mask = mask_table[partition_size]; |
| 444 | if(sub_partition != 0) |
| 445 | { |
| 446 | u1_mb_partw >>= 1; |
| 447 | u1_mb_parth >>= 1; |
| 448 | u2_mask = sub_mask_table[partition_size]; |
| 449 | } |
| 450 | |
| 451 | u1_col_zero_flag = *(ps_col_pic->pu1_col_zero_flag |
| 452 | + s_mvdirect.i4_mv_indices[i]); |
| 453 | u1_col_zero_flag = u1_col_zero_flag & 0x01; |
| 454 | |
| 455 | /*if(u1_col != u1_col_zero_flag) |
| 456 | u1_init = 1;*/ |
| 457 | |
| 458 | if(u1_zero_pred_cond_f || ((i1_ref_frame0 == 0) && (u1_col_zero_flag == 1))) |
| 459 | { |
| 460 | pi2_final_mv0 = &i2_def_mv[0]; |
| 461 | ui2_mask_fwd |= (u2_mask << u1_sub_mb_num); |
| 462 | } |
| 463 | else |
| 464 | pi2_final_mv0 = &i2_spat_pred_mv[0]; |
| 465 | |
| 466 | if(u1_zero_pred_cond_b || ((i1_ref_frame1 == 0) && (u1_col_zero_flag == 1))) |
| 467 | { |
| 468 | pi2_final_mv1 = &i2_def_mv[0]; |
| 469 | ui2_mask_bwd |= (u2_mask << u1_sub_mb_num); |
| 470 | } |
| 471 | else |
| 472 | pi2_final_mv1 = &i2_spat_pred_mv[2]; |
| 473 | |
| 474 | if(ps_cur_mb_info->u1_Mux != 1) |
| 475 | { |
| 476 | /*u1_sub_mb_x = u1_sub_mb_num & 0x03; |
| 477 | uc_sub_mb_y = (u1_sub_mb_num >> 2);*/ |
| 478 | if(i1_ref_frame0 >= 0) |
| 479 | { |
| 480 | |
| 481 | { |
| 482 | pred_info_pkd_t *ps_pred_pkd; |
| 483 | WORD8 i1_ref_idx= 0; |
| 484 | |
| 485 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 486 | ih264d_fill_pred_info(pi2_final_mv0,u1_mb_partw,u1_mb_parth,u1_sub_mb_num,i1_pred, |
| 487 | ps_pred_pkd,ps_pic_buff0->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| 488 | ps_pic_buff0->u1_pic_type); |
| 489 | ps_dec->u4_pred_info_pkd_idx++; |
| 490 | ps_cur_mb_info->u1_num_pred_parts++; |
| 491 | |
| 492 | |
| 493 | } |
| 494 | |
| 495 | } |
| 496 | |
| 497 | if(i1_ref_frame1 >= 0) |
| 498 | { |
| 499 | { |
| 500 | pred_info_pkd_t *ps_pred_pkd; |
| 501 | WORD8 i1_ref_idx= 0; |
| 502 | |
| 503 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 504 | ih264d_fill_pred_info(pi2_final_mv1,u1_mb_partw,u1_mb_parth,u1_sub_mb_num,i1_pred, |
| 505 | ps_pred_pkd,ps_pic_buff1->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| 506 | ps_pic_buff1->u1_pic_type); |
| 507 | ps_dec->u4_pred_info_pkd_idx++; |
| 508 | ps_cur_mb_info->u1_num_pred_parts++; |
| 509 | |
| 510 | |
| 511 | } |
| 512 | } |
| 513 | } |
| 514 | |
| 515 | /* Replication optimisation */ |
| 516 | s_temp_mv_pred.i2_mv[0] = pi2_final_mv0[0]; |
| 517 | s_temp_mv_pred.i2_mv[1] = pi2_final_mv0[1]; |
| 518 | s_temp_mv_pred.i2_mv[2] = pi2_final_mv1[0]; |
| 519 | s_temp_mv_pred.i2_mv[3] = pi2_final_mv1[1]; |
| 520 | |
| 521 | /* Calculating colocated zero information */ |
| 522 | { |
| 523 | WORD16 i2_mv_x = 0, i2_mv_y = 0; |
| 524 | /*************************************/ |
| 525 | /* If(bit2 and bit3 set) */ |
| 526 | /* then */ |
| 527 | /* (bit0 and bit1) => submmbmode */ |
| 528 | /* (bit2 and bit3) => mbmode */ |
| 529 | /* else */ |
| 530 | /* (bit0 and bit1) => mbmode */ |
| 531 | /*************************************/ |
| 532 | UWORD8 u1_packed_mb_sub_mb_mode = |
| 533 | sub_partition ? (s_mvdirect.i1_partitionsize[i]) : ((s_mvdirect.i1_partitionsize[i]) |
| 534 | << 2); |
| 535 | |
| 536 | if(i1_ref_frame0 >= 0) |
| 537 | { |
| 538 | i2_mv_x = pi2_final_mv0[0]; |
| 539 | i2_mv_y = pi2_final_mv0[1]; |
| 540 | } |
| 541 | else |
| 542 | { |
| 543 | i2_mv_x = pi2_final_mv1[0]; |
| 544 | i2_mv_y = pi2_final_mv1[1]; |
| 545 | } |
| 546 | |
| 547 | u1_colz = (ps_cur_mb_info->u1_mb_field_decodingflag << 1) |
| 548 | | ((u1_final_ref_idx == 0) && (ABS(i2_mv_x) <= 1) |
| 549 | && (ABS(i2_mv_y) <= 1)); |
| 550 | u1_colz |= (u1_packed_mb_sub_mb_mode << 4); |
| 551 | } |
| 552 | ps_mv = ps_mv_nmb_start + u1_sub_mb_num; |
| 553 | ih264d_rep_mv_colz(ps_dec, &s_temp_mv_pred, ps_mv, u1_sub_mb_num, u1_colz, |
| 554 | u1_mb_parth, u1_mb_partw); |
| 555 | } |
| 556 | i = 0; |
| 557 | if(i1_ref_frame0 >= 0) |
| 558 | ps_cur_mb_info->u2_mask[i++] = ui2_mask_fwd; |
| 559 | if(i1_ref_frame1 >= 0) |
| 560 | ps_cur_mb_info->u2_mask[i] = ui2_mask_bwd; |
| 561 | |
| 562 | /*if(u1_init) |
| 563 | H264_DEC_DEBUG_PRINT("hit\n"); |
| 564 | else |
| 565 | H264_DEC_DEBUG_PRINT("miss\n");*/ |
| 566 | |
| 567 | return OK; |
| 568 | } |
| 569 | |
| 570 | /*! |
| 571 | ************************************************************************** |
| 572 | * \if Function name : ih264d_decode_temporal_direct \endif |
| 573 | * |
| 574 | * \brief |
| 575 | * Decodes temporal direct mode. |
| 576 | * |
| 577 | * \return |
| 578 | * None. |
| 579 | * |
| 580 | ************************************************************************** |
| 581 | */ |
| 582 | WORD32 ih264d_decode_temporal_direct(dec_struct_t * ps_dec, |
| 583 | UWORD8 u1_wd_x, |
| 584 | dec_mb_info_t * ps_cur_mb_info, |
| 585 | UWORD8 u1_mb_num) |
| 586 | { |
| 587 | struct pic_buffer_t *ps_pic_buff0, *ps_pic_buff1, *ps_col_pic; |
| 588 | mv_pred_t *ps_mv, s_temp_mv_pred; |
| 589 | UWORD8 u1_sub_mb_num; |
| 590 | UWORD8 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; |
| 591 | WORD16 i2_mv_x0, i2_mv_y0, i2_mv_x1, i2_mv_y1; |
| 592 | UWORD8 u1_mb_partw, u1_mb_parth; |
| 593 | UWORD8 i, partition_size, sub_partition; |
| 594 | UWORD32 *pui32_weight_ofsts = NULL; |
| 595 | directmv_t s_mvdirect; |
| 596 | const UWORD8 *pu1_mb_parth = (const UWORD8 *)gau1_ih264d_mb_parth; |
| 597 | const UWORD8 *pu1_mb_partw = (const UWORD8 *)gau1_ih264d_mb_partw; |
| 598 | WORD8 c_refFrm0, c_refFrm1; |
| 599 | UWORD8 u1_ref_idx0, u1_is_cur_mb_fld; |
| 600 | UWORD32 pic0_poc, pic1_poc, cur_poc; |
| 601 | WORD32 ret = 0; |
| 602 | |
| 603 | u1_is_cur_mb_fld = ps_cur_mb_info->u1_mb_field_decodingflag; |
| 604 | ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][0]; |
| 605 | |
| 606 | /**********************************************************************/ |
| 607 | /* Call the function which gets the number of partitions and */ |
| 608 | /* partition info of colocated Mb */ |
| 609 | /**********************************************************************/ |
| 610 | ps_dec->pf_parse_mvdirect(ps_dec, ps_dec->ps_col_pic, &s_mvdirect, u1_wd_x, |
| 611 | ps_dec->i4_submb_ofst, ps_cur_mb_info); |
| 612 | ps_col_pic = ps_dec->ps_col_pic; |
| 613 | |
| 614 | for(i = 0; i < s_mvdirect.i1_num_partitions; i++) |
| 615 | { |
| 616 | UWORD8 u1_colz; |
| 617 | partition_size = s_mvdirect.i1_partitionsize[i]; |
| 618 | u1_sub_mb_num = s_mvdirect.i1_submb_num[i]; |
| 619 | ps_mv = ps_col_pic->ps_mv + s_mvdirect.i4_mv_indices[i]; |
| 620 | |
| 621 | /* This should be removed to catch unitialized memory read */ |
| 622 | u1_ref_idx0 = 0; |
| 623 | |
| 624 | sub_partition = partition_size >> 2; |
| 625 | partition_size &= 0x3; |
| 626 | u1_mb_partw = pu1_mb_partw[partition_size]; |
| 627 | u1_mb_parth = pu1_mb_parth[partition_size]; |
| 628 | if(sub_partition != 0) |
| 629 | { |
| 630 | u1_mb_partw >>= 1; |
| 631 | u1_mb_parth >>= 1; |
| 632 | } |
| 633 | c_refFrm0 = ps_mv->i1_ref_frame[0]; |
| 634 | c_refFrm1 = ps_mv->i1_ref_frame[1]; |
| 635 | |
| 636 | if((c_refFrm0 == -1) && (c_refFrm1 == -1)) |
| 637 | { |
| 638 | u1_ref_idx0 = 0; |
| 639 | ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][0]; |
| 640 | if(u1_mbaff && u1_is_cur_mb_fld) |
| 641 | { |
| 642 | if(ps_cur_mb_info->u1_topmb) |
| 643 | { |
| 644 | pic0_poc = ps_pic_buff0->i4_top_field_order_cnt; |
| 645 | pic1_poc = ps_pic_buff1->i4_top_field_order_cnt; |
| 646 | cur_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; |
| 647 | } |
| 648 | else |
| 649 | { |
| 650 | pic1_poc = ps_pic_buff1->i4_bottom_field_order_cnt; |
| 651 | cur_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; |
| 652 | ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][MAX_REF_BUFS]; |
| 653 | pic0_poc = ps_pic_buff0->i4_bottom_field_order_cnt; |
| 654 | ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][MAX_REF_BUFS]; |
| 655 | } |
| 656 | } |
| 657 | else |
| 658 | { |
| 659 | pic0_poc = ps_pic_buff0->i4_avg_poc; |
| 660 | pic1_poc = ps_pic_buff1->i4_avg_poc; |
| 661 | cur_poc = ps_dec->ps_cur_pic->i4_poc; |
| 662 | } |
| 663 | } |
| 664 | else |
| 665 | { |
| 666 | UWORD8 uc_i, u1_num_frw_ref_pics; |
| 667 | UWORD8 buf_id, u1_pic_type; |
| 668 | buf_id = ps_mv->u1_col_ref_pic_idx; |
| 669 | u1_pic_type = ps_mv->u1_pic_type; |
| 670 | if(ps_dec->ps_cur_slice->u1_field_pic_flag) |
| 671 | { |
| 672 | if(s_mvdirect.u1_vert_mv_scale == FRM_TO_FLD) |
| 673 | { |
| 674 | u1_pic_type = TOP_FLD; |
| 675 | if(ps_dec->ps_cur_slice->u1_bottom_field_flag) |
| 676 | u1_pic_type = BOT_FLD; |
| 677 | } |
| 678 | } |
| 679 | u1_num_frw_ref_pics = |
| 680 | ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; |
| 681 | |
| 682 | for(uc_i = 0; uc_i < u1_num_frw_ref_pics; uc_i++) |
| 683 | { |
| 684 | if(ps_dec->ps_cur_slice->u1_field_pic_flag) |
| 685 | { |
| 686 | if(ps_dec->ps_ref_pic_buf_lx[0][uc_i]->u1_mv_buf_id == buf_id) |
| 687 | { |
| 688 | if(ps_dec->ps_ref_pic_buf_lx[0][uc_i]->u1_pic_type |
| 689 | == u1_pic_type) |
| 690 | { |
| 691 | u1_ref_idx0 = uc_i; |
| 692 | break; |
| 693 | } |
| 694 | } |
| 695 | } |
| 696 | else |
| 697 | { |
| 698 | if(ps_dec->ps_ref_pic_buf_lx[0][uc_i]->u1_mv_buf_id == buf_id) |
| 699 | { |
| 700 | u1_ref_idx0 = uc_i; |
| 701 | break; |
| 702 | } |
| 703 | } |
| 704 | } |
| 705 | |
| 706 | ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][u1_ref_idx0]; |
| 707 | ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][0]; |
| 708 | |
| 709 | if(u1_mbaff && u1_is_cur_mb_fld) |
| 710 | { |
| 711 | pic0_poc = ps_pic_buff0->i4_top_field_order_cnt; |
| 712 | u1_ref_idx0 <<= 1; |
| 713 | if(s_mvdirect.u1_vert_mv_scale == ONE_TO_ONE) |
| 714 | { |
| 715 | if(u1_pic_type == BOT_FLD) |
| 716 | { |
| 717 | pic0_poc = ps_pic_buff0->i4_bottom_field_order_cnt; |
| 718 | ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][(u1_ref_idx0 |
| 719 | >> 1) + MAX_REF_BUFS]; |
| 720 | if(ps_cur_mb_info->u1_topmb) |
| 721 | u1_ref_idx0++; |
| 722 | } |
| 723 | else |
| 724 | { |
| 725 | if(1 - ps_cur_mb_info->u1_topmb) |
| 726 | u1_ref_idx0++; |
| 727 | } |
| 728 | } |
| 729 | if(s_mvdirect.u1_vert_mv_scale == FRM_TO_FLD) |
| 730 | { |
| 731 | if(1 - ps_cur_mb_info->u1_topmb) |
| 732 | { |
| 733 | pic0_poc = ps_pic_buff0->i4_bottom_field_order_cnt; |
| 734 | ps_pic_buff0 = ps_dec->ps_ref_pic_buf_lx[0][(u1_ref_idx0 |
| 735 | >> 1) + MAX_REF_BUFS]; |
| 736 | } |
| 737 | } |
| 738 | if(ps_cur_mb_info->u1_topmb) |
| 739 | { |
| 740 | pic1_poc = ps_pic_buff1->i4_top_field_order_cnt; |
| 741 | cur_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; |
| 742 | } |
| 743 | else |
| 744 | { |
| 745 | pic1_poc = ps_pic_buff1->i4_bottom_field_order_cnt; |
| 746 | cur_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; |
| 747 | ps_pic_buff1 = ps_dec->ps_ref_pic_buf_lx[1][MAX_REF_BUFS]; |
| 748 | } |
| 749 | } |
| 750 | else |
| 751 | { |
| 752 | pic0_poc = ps_pic_buff0->i4_avg_poc; |
| 753 | pic1_poc = ps_pic_buff1->i4_avg_poc; |
| 754 | cur_poc = ps_dec->ps_cur_pic->i4_poc; |
| 755 | } |
| 756 | } |
| 757 | { |
| 758 | WORD16 i16_td; |
| 759 | |
| 760 | if(c_refFrm0 >= 0) |
| 761 | { |
| 762 | i2_mv_x0 = ps_mv->i2_mv[0]; |
| 763 | i2_mv_y0 = ps_mv->i2_mv[1]; |
| 764 | } |
| 765 | else if(c_refFrm1 >= 0) |
| 766 | { |
| 767 | i2_mv_x0 = ps_mv->i2_mv[2]; |
| 768 | i2_mv_y0 = ps_mv->i2_mv[3]; |
| 769 | } |
| 770 | else |
| 771 | { |
| 772 | i2_mv_x0 = 0; |
| 773 | i2_mv_y0 = 0; |
| 774 | } |
| 775 | /* If FRM_TO_FLD or FLD_TO_FRM scale the "y" component of the colocated Mv*/ |
| 776 | if(s_mvdirect.u1_vert_mv_scale == FRM_TO_FLD) |
| 777 | { |
| 778 | i2_mv_y0 /= 2; |
| 779 | } |
| 780 | else if(s_mvdirect.u1_vert_mv_scale == FLD_TO_FRM) |
| 781 | { |
| 782 | i2_mv_y0 *= 2; |
| 783 | } |
| 784 | |
| 785 | i16_td = pic1_poc - pic0_poc; |
| 786 | if((ps_pic_buff0->u1_is_short == 0) || (i16_td == 0)) |
| 787 | { |
| 788 | i2_mv_x1 = 0; |
| 789 | i2_mv_y1 = 0; |
| 790 | } |
| 791 | else |
| 792 | { |
| 793 | WORD16 i16_tb, i16_tx, i2_dist_scale_factor, i16_temp; |
| 794 | |
| 795 | i16_td = CLIP3(-128, 127, i16_td); |
| 796 | i16_tb = cur_poc - pic0_poc; |
| 797 | i16_tb = CLIP3(-128, 127, i16_tb); |
| 798 | |
| 799 | i16_tx = (16384 + ABS(SIGN_POW2_DIV(i16_td, 1))) / i16_td; |
| 800 | i2_dist_scale_factor = CLIP3(-1024, 1023, |
| 801 | (((i16_tb * i16_tx) + 32) >> 6)); |
| 802 | i16_temp = (i2_mv_x0 * i2_dist_scale_factor + 128) >> 8; |
| 803 | i2_mv_x1 = i16_temp - i2_mv_x0; |
| 804 | i2_mv_x0 = i16_temp; |
| 805 | |
| 806 | i16_temp = (i2_mv_y0 * i2_dist_scale_factor + 128) >> 8; |
| 807 | i2_mv_y1 = i16_temp - i2_mv_y0; |
| 808 | i2_mv_y0 = i16_temp; |
| 809 | } |
| 810 | { |
| 811 | mv_pred_t *ps_mv; |
| 812 | |
| 813 | /*u1_sub_mb_x = u1_sub_mb_num & 0x03; |
| 814 | uc_sub_mb_y = u1_sub_mb_num >> 2;*/ |
| 815 | if(ps_dec->ps_cur_pps->u1_wted_bipred_idc) |
| 816 | { |
| 817 | UWORD8 u1_idx = |
| 818 | u1_ref_idx0 |
| 819 | * ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| 820 | UWORD8 u1_scale_ref = u1_mbaff && u1_is_cur_mb_fld; |
| 821 | if(u1_scale_ref) |
| 822 | u1_idx >>= 1; |
| 823 | pui32_weight_ofsts = (UWORD32*)&ps_dec->pu4_wt_ofsts[2 |
| 824 | * X3(u1_idx)]; |
| 825 | if(u1_scale_ref |
| 826 | && (ps_dec->ps_cur_pps->u1_wted_bipred_idc |
| 827 | == 2)) |
| 828 | { |
| 829 | WORD16 i2_ref_idx; |
| 830 | i2_ref_idx = u1_ref_idx0; |
| 831 | i2_ref_idx *= |
| 832 | (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1] |
| 833 | << 1); |
| 834 | if(!ps_cur_mb_info->u1_topmb) |
| 835 | i2_ref_idx += |
| 836 | (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0] |
| 837 | << 1) |
| 838 | * (ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1] |
| 839 | << 1); |
| 840 | pui32_weight_ofsts = |
| 841 | (UWORD32*)&ps_dec->pu4_mbaff_wt_mat[2 |
| 842 | * X3(i2_ref_idx)]; |
| 843 | } |
| 844 | } |
| 845 | { |
| 846 | pred_info_pkd_t *ps_pred_pkd; |
| 847 | WORD16 i2_mv[2]; |
| 848 | WORD8 i1_ref_idx= 0; |
| 849 | |
| 850 | i2_mv[0] = i2_mv_x0; |
| 851 | i2_mv[1] = i2_mv_y0; |
| 852 | |
| 853 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 854 | ih264d_fill_pred_info(i2_mv,u1_mb_partw,u1_mb_parth,u1_sub_mb_num,PRED_L0 | PRED_L1, |
| 855 | ps_pred_pkd,ps_pic_buff0->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| 856 | ps_pic_buff0->u1_pic_type); |
| 857 | ps_dec->u4_pred_info_pkd_idx++; |
| 858 | ps_cur_mb_info->u1_num_pred_parts++; |
| 859 | |
| 860 | |
| 861 | } |
| 862 | { |
| 863 | pred_info_pkd_t *ps_pred_pkd; |
| 864 | WORD16 i2_mv[2]; |
| 865 | WORD8 i1_ref_idx= 0; |
| 866 | |
| 867 | i2_mv[0] = i2_mv_x1; |
| 868 | i2_mv[1] = i2_mv_y1; |
| 869 | |
| 870 | ps_pred_pkd = ps_dec->ps_pred_pkd + ps_dec->u4_pred_info_pkd_idx; |
| 871 | ih264d_fill_pred_info(i2_mv,u1_mb_partw,u1_mb_parth,u1_sub_mb_num,PRED_L0 | PRED_L1, |
| 872 | ps_pred_pkd,ps_pic_buff1->u1_pic_buf_id,i1_ref_idx,pui32_weight_ofsts, |
| 873 | ps_pic_buff1->u1_pic_type); |
| 874 | ps_dec->u4_pred_info_pkd_idx++; |
| 875 | ps_cur_mb_info->u1_num_pred_parts++; |
| 876 | |
| 877 | |
| 878 | } |
| 879 | |
| 880 | /* Replication optimisation */ |
| 881 | s_temp_mv_pred.i2_mv[0] = i2_mv_x0; |
| 882 | s_temp_mv_pred.i2_mv[1] = i2_mv_y0; |
| 883 | s_temp_mv_pred.i2_mv[2] = i2_mv_x1; |
| 884 | s_temp_mv_pred.i2_mv[3] = i2_mv_y1; |
| 885 | s_temp_mv_pred.i1_ref_frame[0] = u1_ref_idx0; |
| 886 | s_temp_mv_pred.i1_ref_frame[1] = 0; |
| 887 | s_temp_mv_pred.u1_col_ref_pic_idx = ps_pic_buff0->u1_mv_buf_id; |
| 888 | s_temp_mv_pred.u1_pic_type = ps_pic_buff0->u1_pic_type; |
| 889 | ps_mv = ps_dec->ps_mv_cur + (u1_mb_num << 4) + u1_sub_mb_num; |
| 890 | |
| 891 | { |
| 892 | WORD16 i2_mv_x = 0, i2_mv_y = 0; |
| 893 | UWORD8 u1_packed_mb_sub_mb_mode = |
| 894 | sub_partition ? (s_mvdirect.i1_partitionsize[i]) : ((s_mvdirect.i1_partitionsize[i]) |
| 895 | << 2); |
| 896 | |
| 897 | if(c_refFrm0 >= 0) |
| 898 | { |
| 899 | i2_mv_x = i2_mv_x0; |
| 900 | i2_mv_y = i2_mv_y0; |
| 901 | } |
| 902 | else |
| 903 | { |
| 904 | i2_mv_x = i2_mv_x1; |
| 905 | i2_mv_y = i2_mv_y1; |
| 906 | } |
| 907 | |
| 908 | u1_colz = |
| 909 | (ps_cur_mb_info->u1_mb_field_decodingflag << 1) |
| 910 | | ((u1_ref_idx0 == 0) |
| 911 | && (ABS(i2_mv_x) |
| 912 | <= 1) |
| 913 | && (ABS(i2_mv_y) |
| 914 | <= 1)); |
| 915 | u1_colz |= (u1_packed_mb_sub_mb_mode << 4); |
| 916 | } |
| 917 | ih264d_rep_mv_colz(ps_dec, &s_temp_mv_pred, ps_mv, u1_sub_mb_num, |
| 918 | u1_colz, u1_mb_parth, u1_mb_partw); |
| 919 | } |
| 920 | } |
| 921 | } |
| 922 | /* return value set to UWORD8 to make it homogeneous */ |
| 923 | /* with decodespatialdirect */ |
| 924 | return OK; |
| 925 | } |
| 926 | |
| 927 | void ih264d_convert_frm_to_fld_list(struct pic_buffer_t *ps_ref_pic_buf_lx, |
| 928 | UWORD8 *pu1_L0, |
| 929 | dec_struct_t *ps_dec, |
| 930 | UWORD8 u1_num_short_term_bufs) |
| 931 | { |
| 932 | UWORD8 uc_count = *pu1_L0, i, uc_l1, uc_lx, j; |
| 933 | struct pic_buffer_t *ps_ref_lx[2], *ps_ref_pic_lx; |
| 934 | UWORD8 u1_bottom_field_flag; |
| 935 | dec_slice_params_t *ps_cur_slice; |
| 936 | UWORD8 u1_ref[2], u1_fld[2], u1_same_fld, u1_op_fld; |
| 937 | UWORD32 ui_half_num_of_sub_mbs; |
| 938 | |
| 939 | uc_l1 = 0; |
| 940 | uc_lx = 0; |
| 941 | ps_cur_slice = ps_dec->ps_cur_slice; |
| 942 | ps_ref_pic_lx = ps_ref_pic_buf_lx - MAX_REF_BUFS; |
| 943 | ps_ref_lx[0] = ps_ref_pic_buf_lx; |
| 944 | ps_ref_lx[1] = ps_ref_pic_buf_lx; |
| 945 | u1_bottom_field_flag = ps_cur_slice->u1_bottom_field_flag; |
| 946 | ui_half_num_of_sub_mbs = ((ps_dec->u2_pic_ht * ps_dec->u2_pic_wd) >> 5); |
| 947 | if(u1_bottom_field_flag) |
| 948 | { |
| 949 | u1_ref[0] = BOT_REF; |
| 950 | u1_ref[1] = TOP_REF; |
| 951 | u1_fld[0] = BOT_FLD; |
| 952 | u1_fld[1] = TOP_FLD; |
| 953 | u1_same_fld = BOT_FLD; |
| 954 | u1_op_fld = TOP_FLD; |
| 955 | } |
| 956 | else |
| 957 | { |
| 958 | u1_ref[0] = TOP_REF; |
| 959 | u1_ref[1] = BOT_REF; |
| 960 | u1_fld[0] = TOP_FLD; |
| 961 | u1_fld[1] = BOT_FLD; |
| 962 | u1_same_fld = TOP_FLD; |
| 963 | u1_op_fld = BOT_FLD; |
| 964 | } |
| 965 | |
| 966 | /* Create the field list starting with all the short term */ |
| 967 | /* frames followed by all the long term frames. No long term */ |
| 968 | /* reference field should have a list idx less than a short */ |
| 969 | /* term reference field during initiailization. */ |
| 970 | |
| 971 | for(j = 0; j < 2; j++) |
| 972 | { |
| 973 | i = ((j == 0) ? 0 : u1_num_short_term_bufs); |
| 974 | uc_count = ((j == 0) ? u1_num_short_term_bufs : *pu1_L0); |
| 975 | for(; i < uc_count; i++, ps_ref_lx[0]++) |
| 976 | { |
| 977 | /* Search field of same parity in Frame list */ |
| 978 | if((ps_ref_lx[0]->u1_pic_type & u1_ref[0])) // || ((ps_ref_lx[0]->u1_picturetype & 0x3) == 0)) |
| 979 | { |
| 980 | /* Insert PIC of same parity in RefPicList */ |
| 981 | ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_lx, ps_ref_lx[0]); |
| 982 | ps_ref_pic_lx->i4_pic_num = (ps_ref_pic_lx->i4_pic_num * 2 + 1); |
| 983 | ps_ref_pic_lx->u1_long_term_pic_num = |
| 984 | (ps_ref_pic_lx->u1_long_term_frm_idx * 2 + 1); |
| 985 | ps_ref_pic_lx->u1_pic_type = u1_same_fld; |
| 986 | if(u1_fld[0] & BOT_FLD) |
| 987 | { |
| 988 | ps_ref_pic_lx->u1_pic_type = BOT_FLD; |
| 989 | ps_ref_pic_lx->pu1_buf1 += ps_ref_pic_lx->u2_frm_wd_y; |
| 990 | ps_ref_pic_lx->pu1_buf2 += ps_ref_pic_lx->u2_frm_wd_uv; |
| 991 | ps_ref_pic_lx->pu1_buf3 += ps_ref_pic_lx->u2_frm_wd_uv; |
| 992 | if(ps_ref_pic_lx->u1_picturetype & 0x3) |
| 993 | { |
| 994 | ps_ref_pic_lx->pu1_col_zero_flag += ui_half_num_of_sub_mbs; |
| 995 | ps_ref_pic_lx->ps_mv += ui_half_num_of_sub_mbs; |
| 996 | } |
| 997 | ps_ref_pic_lx->i4_poc = |
| 998 | ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| 999 | ps_ref_pic_lx->i4_avg_poc = |
| 1000 | ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| 1001 | } |
| 1002 | else |
| 1003 | { |
| 1004 | ps_ref_pic_lx->u1_pic_type = TOP_FLD; |
| 1005 | ps_ref_pic_lx->i4_poc = ps_ref_pic_lx->i4_top_field_order_cnt; |
| 1006 | ps_ref_pic_lx->i4_avg_poc = |
| 1007 | ps_ref_pic_lx->i4_top_field_order_cnt; |
| 1008 | } |
| 1009 | |
| 1010 | ps_ref_pic_lx++; |
| 1011 | uc_lx++; |
| 1012 | /* Find field of opposite parity */ |
| 1013 | if(uc_l1 < uc_count && ps_ref_lx[1]) |
| 1014 | { |
| 1015 | while(!(ps_ref_lx[1]->u1_pic_type & u1_ref[1])) |
| 1016 | { |
| 1017 | ps_ref_lx[1]++; |
| 1018 | uc_l1++; |
| 1019 | if(uc_l1 >= uc_count) |
| 1020 | ps_ref_lx[1] = 0; |
| 1021 | if(!ps_ref_lx[1]) |
| 1022 | break; |
| 1023 | } |
| 1024 | |
| 1025 | if(ps_ref_lx[1]) |
| 1026 | { |
| 1027 | uc_l1++; |
| 1028 | ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_lx, |
| 1029 | ps_ref_lx[1]); |
| 1030 | ps_ref_pic_lx->u1_pic_type = u1_op_fld; |
| 1031 | ps_ref_pic_lx->i4_pic_num = (ps_ref_pic_lx->i4_pic_num * 2); |
| 1032 | ps_ref_pic_lx->u1_long_term_pic_num = |
| 1033 | (ps_ref_pic_lx->u1_long_term_frm_idx * 2); |
| 1034 | if(u1_fld[1] & BOT_FLD) |
| 1035 | { |
| 1036 | ps_ref_pic_lx->u1_pic_type = BOT_FLD; |
| 1037 | ps_ref_pic_lx->pu1_buf1 += ps_ref_pic_lx->u2_frm_wd_y; |
| 1038 | ps_ref_pic_lx->pu1_buf2 += ps_ref_pic_lx->u2_frm_wd_uv; |
| 1039 | ps_ref_pic_lx->pu1_buf3 += ps_ref_pic_lx->u2_frm_wd_uv; |
| 1040 | if(ps_ref_pic_lx->u1_picturetype & 0x3) |
| 1041 | { |
| 1042 | ps_ref_pic_lx->pu1_col_zero_flag += |
| 1043 | ui_half_num_of_sub_mbs; |
| 1044 | ps_ref_pic_lx->ps_mv += ui_half_num_of_sub_mbs; |
| 1045 | } |
| 1046 | ps_ref_pic_lx->i4_poc = |
| 1047 | ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| 1048 | ps_ref_pic_lx->i4_avg_poc = |
| 1049 | ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| 1050 | } |
| 1051 | else |
| 1052 | { |
| 1053 | ps_ref_pic_lx->u1_pic_type = TOP_FLD; |
| 1054 | ps_ref_pic_lx->i4_poc = |
| 1055 | ps_ref_pic_lx->i4_top_field_order_cnt; |
| 1056 | ps_ref_pic_lx->i4_avg_poc = |
| 1057 | ps_ref_pic_lx->i4_top_field_order_cnt; |
| 1058 | } |
| 1059 | ps_ref_pic_lx++; |
| 1060 | uc_lx++; |
| 1061 | ps_ref_lx[1]++; |
| 1062 | } |
| 1063 | } |
| 1064 | } |
| 1065 | } |
| 1066 | |
| 1067 | /* Same parity fields are over, now insert left over opposite parity fields */ |
| 1068 | /** Added if(ps_ref_lx[1]) for error checks */ |
| 1069 | if(ps_ref_lx[1]) |
| 1070 | { |
| 1071 | for(; uc_l1 < uc_count; uc_l1++) |
| 1072 | { |
| 1073 | if(ps_ref_lx[1]->u1_pic_type & u1_ref[1]) |
| 1074 | { |
| 1075 | /* Insert PIC of opposite parity in RefPicList */ |
| 1076 | ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_lx, |
| 1077 | ps_ref_lx[1]); |
| 1078 | ps_ref_pic_lx->u1_pic_type = u1_op_fld; |
| 1079 | ps_ref_pic_lx->i4_pic_num = (ps_ref_pic_lx->i4_pic_num * 2); |
| 1080 | ps_ref_pic_lx->u1_long_term_pic_num = |
| 1081 | (ps_ref_pic_lx->u1_long_term_frm_idx * 2); |
| 1082 | if(u1_op_fld == BOT_FLD) |
| 1083 | { |
| 1084 | ps_ref_pic_lx->u1_pic_type = BOT_FLD; |
| 1085 | ps_ref_pic_lx->pu1_buf1 += ps_ref_pic_lx->u2_frm_wd_y; |
| 1086 | ps_ref_pic_lx->pu1_buf2 += ps_ref_pic_lx->u2_frm_wd_uv; |
| 1087 | ps_ref_pic_lx->pu1_buf3 += ps_ref_pic_lx->u2_frm_wd_uv; |
| 1088 | if(ps_ref_pic_lx->u1_picturetype & 0x3) |
| 1089 | { |
| 1090 | ps_ref_pic_lx->pu1_col_zero_flag += |
| 1091 | ui_half_num_of_sub_mbs; |
| 1092 | ps_ref_pic_lx->ps_mv += ui_half_num_of_sub_mbs; |
| 1093 | } |
| 1094 | ps_ref_pic_lx->i4_poc = |
| 1095 | ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| 1096 | ps_ref_pic_lx->i4_avg_poc = |
| 1097 | ps_ref_pic_lx->i4_bottom_field_order_cnt; |
| 1098 | } |
| 1099 | else |
| 1100 | { |
| 1101 | ps_ref_pic_lx->i4_poc = |
| 1102 | ps_ref_pic_lx->i4_top_field_order_cnt; |
| 1103 | ps_ref_pic_lx->i4_avg_poc = |
| 1104 | ps_ref_pic_lx->i4_top_field_order_cnt; |
| 1105 | } |
| 1106 | ps_ref_pic_lx++; |
| 1107 | uc_lx++; |
| 1108 | ps_ref_lx[1]++; |
| 1109 | } |
| 1110 | } |
| 1111 | } |
| 1112 | } |
| 1113 | *pu1_L0 = uc_lx; |
| 1114 | } |
| 1115 | |
| 1116 | void ih264d_convert_frm_mbaff_list(dec_struct_t *ps_dec) |
| 1117 | { |
| 1118 | struct pic_buffer_t **ps_ref_pic_lx; |
| 1119 | UWORD8 u1_max_ref_idx, idx; |
| 1120 | UWORD16 u2_frm_wd_y, u2_frm_wd_uv; |
| 1121 | struct pic_buffer_t **ps_ref_pic_buf_lx; |
| 1122 | UWORD32 u4_half_num_of_sub_mbs = ((ps_dec->u2_pic_ht * ps_dec->u2_pic_wd) >> 5); |
| 1123 | |
| 1124 | ps_ref_pic_buf_lx = ps_dec->ps_ref_pic_buf_lx[0]; |
| 1125 | ps_ref_pic_lx = ps_dec->ps_ref_pic_buf_lx[0]; |
| 1126 | u1_max_ref_idx = ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[0]; |
| 1127 | for(idx = 0; idx < u1_max_ref_idx; idx++) |
| 1128 | { |
| 1129 | ps_ref_pic_lx[idx]->u1_pic_type = TOP_FLD; |
| 1130 | ps_ref_pic_lx[idx]->i4_poc = ps_ref_pic_lx[idx]->i4_top_field_order_cnt; |
| 1131 | |
| 1132 | } |
| 1133 | u2_frm_wd_y = ps_dec->u2_frm_wd_y; |
| 1134 | u2_frm_wd_uv = ps_dec->u2_frm_wd_uv; |
| 1135 | |
| 1136 | for(idx = 0; idx < u1_max_ref_idx; idx++) |
| 1137 | { |
| 1138 | *ps_ref_pic_lx[idx + MAX_REF_BUFS] = *ps_ref_pic_buf_lx[idx]; |
| 1139 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf1 = |
| 1140 | ps_ref_pic_buf_lx[idx]->pu1_buf1 + u2_frm_wd_y; |
| 1141 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf2 = |
| 1142 | ps_ref_pic_buf_lx[idx]->pu1_buf2 + u2_frm_wd_uv; |
| 1143 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf3 = |
| 1144 | ps_ref_pic_buf_lx[idx]->pu1_buf3 + u2_frm_wd_uv; |
| 1145 | |
| 1146 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->u1_pic_type = BOT_FLD; |
| 1147 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->i4_poc = |
| 1148 | ps_ref_pic_buf_lx[idx]->i4_bottom_field_order_cnt; |
| 1149 | if(ps_ref_pic_buf_lx[idx]->u1_picturetype & 0x3) |
| 1150 | { |
| 1151 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_col_zero_flag = |
| 1152 | ps_ref_pic_buf_lx[idx]->pu1_col_zero_flag |
| 1153 | + u4_half_num_of_sub_mbs; |
| 1154 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->ps_mv = |
| 1155 | ps_ref_pic_buf_lx[idx]->ps_mv + u4_half_num_of_sub_mbs; |
| 1156 | } |
| 1157 | } |
| 1158 | |
| 1159 | if(ps_dec->u1_B) |
| 1160 | { |
| 1161 | ps_ref_pic_buf_lx = ps_dec->ps_ref_pic_buf_lx[1]; |
| 1162 | ps_ref_pic_lx = ps_dec->ps_ref_pic_buf_lx[1]; |
| 1163 | u1_max_ref_idx = ps_dec->ps_cur_slice->u1_num_ref_idx_lx_active[1]; |
| 1164 | for(idx = 0; idx < u1_max_ref_idx; idx++) |
| 1165 | { |
| 1166 | ps_ref_pic_lx[idx]->u1_pic_type = TOP_FLD; |
| 1167 | ps_ref_pic_lx[idx]->i4_poc = ps_ref_pic_lx[idx]->i4_top_field_order_cnt; |
| 1168 | |
| 1169 | } |
| 1170 | |
| 1171 | for(idx = 0; idx < u1_max_ref_idx; idx++) |
| 1172 | { |
| 1173 | *ps_ref_pic_lx[idx + MAX_REF_BUFS] = *ps_ref_pic_buf_lx[idx]; |
| 1174 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf1 = |
| 1175 | ps_ref_pic_buf_lx[idx]->pu1_buf1 + u2_frm_wd_y; |
| 1176 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf2 = |
| 1177 | ps_ref_pic_buf_lx[idx]->pu1_buf2 + u2_frm_wd_uv; |
| 1178 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_buf3 = |
| 1179 | ps_ref_pic_buf_lx[idx]->pu1_buf3 + u2_frm_wd_uv; |
| 1180 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->u1_pic_type = BOT_FLD; |
| 1181 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->i4_poc = |
| 1182 | ps_ref_pic_buf_lx[idx]->i4_bottom_field_order_cnt; |
| 1183 | |
| 1184 | if(ps_ref_pic_buf_lx[idx]->u1_picturetype & 0x3) |
| 1185 | { |
| 1186 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->pu1_col_zero_flag = |
| 1187 | ps_ref_pic_buf_lx[idx]->pu1_col_zero_flag |
| 1188 | + u4_half_num_of_sub_mbs; |
| 1189 | ps_ref_pic_lx[idx + MAX_REF_BUFS]->ps_mv = |
| 1190 | ps_ref_pic_buf_lx[idx]->ps_mv |
| 1191 | + u4_half_num_of_sub_mbs; |
| 1192 | } |
| 1193 | } |
| 1194 | } |
| 1195 | } |
| 1196 | /*! |
| 1197 | ************************************************************************** |
| 1198 | * \if Function name : ih264d_init_ref_idx_lx_b \endif |
| 1199 | * |
| 1200 | * \brief |
| 1201 | * Initializes forward and backward refernce lists for B slice decoding. |
| 1202 | * |
| 1203 | * |
| 1204 | * \return |
| 1205 | * 0 on Success and Error code otherwise |
| 1206 | ************************************************************************** |
| 1207 | */ |
| 1208 | void ih264d_init_ref_idx_lx_b(dec_struct_t *ps_dec) |
| 1209 | { |
| 1210 | struct pic_buffer_t *ps_ref_pic_buf_lx; |
| 1211 | dpb_manager_t *ps_dpb_mgr; |
| 1212 | struct dpb_info_t *ps_next_dpb; |
| 1213 | WORD32 i_cur_poc, i_max_st_poc, i_min_st_poc, i_ref_poc, i_temp_poc; |
| 1214 | WORD8 i; |
| 1215 | UWORD8 u1_max_lt_index, u1_min_lt_index, u1_lt_index; |
| 1216 | UWORD8 u1_field_pic_flag; |
| 1217 | dec_slice_params_t *ps_cur_slice; |
| 1218 | UWORD8 u1_L0, u1_L1; |
| 1219 | UWORD8 u1_num_short_term_bufs; |
| 1220 | UWORD8 u1_max_ref_idx_l0, u1_max_ref_idx_l1; |
| 1221 | |
| 1222 | ps_cur_slice = ps_dec->ps_cur_slice; |
| 1223 | u1_field_pic_flag = ps_cur_slice->u1_field_pic_flag; |
| 1224 | u1_max_ref_idx_l0 = ps_cur_slice->u1_num_ref_idx_lx_active[0] |
| 1225 | << u1_field_pic_flag; |
| 1226 | u1_max_ref_idx_l1 = ps_cur_slice->u1_num_ref_idx_lx_active[1] |
| 1227 | << u1_field_pic_flag; |
| 1228 | |
| 1229 | ps_dpb_mgr = ps_dec->ps_dpb_mgr; |
| 1230 | /* Get the current POC */ |
| 1231 | i_cur_poc = ps_dec->ps_cur_pic->i4_poc; |
| 1232 | |
| 1233 | /* Get MaxStPOC,MinStPOC,MaxLt,MinLt */ |
| 1234 | i_max_st_poc = i_cur_poc; |
| 1235 | i_min_st_poc = i_cur_poc; |
| 1236 | u1_max_lt_index = MAX_REF_BUFS + 1; |
| 1237 | u1_min_lt_index = MAX_REF_BUFS + 1; |
| 1238 | /* Start from ST head */ |
| 1239 | ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| 1240 | for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| 1241 | { |
| 1242 | i_ref_poc = ps_next_dpb->ps_pic_buf->i4_poc; |
| 1243 | if(i_ref_poc < i_cur_poc) |
| 1244 | { |
| 1245 | /* RefPic Buf POC is before Current POC in display order */ |
| 1246 | i_min_st_poc = MIN(i_min_st_poc, i_ref_poc); |
| 1247 | } |
| 1248 | else |
| 1249 | { |
| 1250 | /* RefPic Buf POC is after Current POC in display order */ |
| 1251 | i_max_st_poc = MAX(i_max_st_poc, i_ref_poc); |
| 1252 | } |
| 1253 | |
| 1254 | /* Chase the next link */ |
| 1255 | ps_next_dpb = ps_next_dpb->ps_prev_short; |
| 1256 | } |
| 1257 | |
| 1258 | /* Start from LT head */ |
| 1259 | ps_next_dpb = ps_dpb_mgr->ps_dpb_ht_head; |
| 1260 | if(ps_next_dpb) |
| 1261 | { |
| 1262 | u1_max_lt_index = ps_next_dpb->u1_lt_idx; |
| 1263 | u1_min_lt_index = ps_next_dpb->u1_lt_idx; |
| 1264 | } |
| 1265 | for(i = 0; i < ps_dpb_mgr->u1_num_lt_ref_bufs; i++) |
| 1266 | { |
| 1267 | u1_lt_index = ps_next_dpb->u1_lt_idx; |
| 1268 | u1_max_lt_index = (UWORD8)(MAX(u1_max_lt_index, u1_lt_index)); |
| 1269 | u1_min_lt_index = (UWORD8)(MIN(u1_min_lt_index, u1_lt_index)); |
| 1270 | |
| 1271 | /* Chase the next link */ |
| 1272 | ps_next_dpb = ps_next_dpb->ps_prev_long; |
| 1273 | } |
| 1274 | |
| 1275 | /* 1. Initialize refIdxL0 */ |
| 1276 | u1_L0 = 0; |
| 1277 | if(u1_field_pic_flag) |
| 1278 | { |
| 1279 | ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[0][0]; |
| 1280 | ps_ref_pic_buf_lx += MAX_REF_BUFS; |
| 1281 | i_temp_poc = i_cur_poc; |
| 1282 | } |
| 1283 | else |
| 1284 | { |
| 1285 | ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[0][0]; |
| 1286 | i_temp_poc = i_cur_poc - 1; |
| 1287 | } |
| 1288 | /* Arrange all short term buffers in output order as given by POC */ |
| 1289 | /* 1.1 Arrange POC's less than CurrPOC in the descending POC order starting |
| 1290 | from (CurrPOC - 1)*/ |
| 1291 | for(; i_temp_poc >= i_min_st_poc; i_temp_poc--) |
| 1292 | { |
| 1293 | /* Start from ST head */ |
| 1294 | ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| 1295 | for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| 1296 | { |
| 1297 | if((WORD32)ps_next_dpb->ps_pic_buf->i4_poc == i_temp_poc) |
| 1298 | { |
| 1299 | /* Copy info in pic buffer */ |
| 1300 | ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| 1301 | ps_next_dpb->ps_pic_buf); |
| 1302 | ps_ref_pic_buf_lx++; |
| 1303 | u1_L0++; |
| 1304 | break; |
| 1305 | } |
| 1306 | ps_next_dpb = ps_next_dpb->ps_prev_short; |
| 1307 | } |
| 1308 | } |
| 1309 | |
| 1310 | { |
| 1311 | /* 1.2. Arrange POC's more than CurrPOC in the ascending POC order starting |
| 1312 | from (CurrPOC + 1)*/ |
| 1313 | for(i_temp_poc = i_cur_poc + 1; i_temp_poc <= i_max_st_poc; i_temp_poc++) |
| 1314 | { |
| 1315 | /* Start from ST head */ |
| 1316 | ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| 1317 | for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| 1318 | { |
| 1319 | if((WORD32)ps_next_dpb->ps_pic_buf->i4_poc == i_temp_poc) |
| 1320 | { |
| 1321 | ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| 1322 | ps_next_dpb->ps_pic_buf); |
| 1323 | ps_ref_pic_buf_lx++; |
| 1324 | u1_L0++; |
| 1325 | break; |
| 1326 | } |
| 1327 | ps_next_dpb = ps_next_dpb->ps_prev_short; |
| 1328 | } |
| 1329 | } |
| 1330 | } |
| 1331 | |
| 1332 | /* 1.3 Arrange all Long term buffers in ascending order, in LongtermIndex */ |
| 1333 | /* Start from ST head */ |
| 1334 | |
| 1335 | u1_num_short_term_bufs = u1_L0; |
| 1336 | for(u1_lt_index = u1_min_lt_index; u1_lt_index <= u1_max_lt_index; u1_lt_index++) |
| 1337 | { |
| 1338 | ps_next_dpb = ps_dpb_mgr->ps_dpb_ht_head; |
| 1339 | for(i = 0; i < ps_dpb_mgr->u1_num_lt_ref_bufs; i++) |
| 1340 | { |
| 1341 | if(ps_next_dpb->u1_lt_idx == u1_lt_index) |
| 1342 | { |
| 1343 | ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| 1344 | ps_next_dpb->ps_pic_buf); |
| 1345 | ps_ref_pic_buf_lx->u1_long_term_pic_num = |
| 1346 | ps_ref_pic_buf_lx->u1_long_term_frm_idx; |
| 1347 | |
| 1348 | ps_ref_pic_buf_lx++; |
| 1349 | u1_L0++; |
| 1350 | break; |
| 1351 | } |
| 1352 | ps_next_dpb = ps_next_dpb->ps_prev_long; |
| 1353 | } |
| 1354 | } |
| 1355 | |
| 1356 | if(u1_field_pic_flag) |
| 1357 | { |
| 1358 | /* Initialize the rest of the entries in the */ |
| 1359 | /* reference list to handle of errors */ |
| 1360 | { |
| 1361 | UWORD8 u1_i; |
| 1362 | pic_buffer_t *ps_ref_pic; |
| 1363 | |
| 1364 | ps_ref_pic = ps_dpb_mgr->ps_init_dpb[0][0] + MAX_REF_BUFS; |
| 1365 | |
| 1366 | if(NULL == ps_ref_pic->pu1_buf1) |
| 1367 | { |
| 1368 | ps_ref_pic = ps_dec->ps_cur_pic; |
| 1369 | } |
| 1370 | for(u1_i = u1_L0; u1_i < u1_max_ref_idx_l0; u1_i++) |
| 1371 | { |
| 1372 | *ps_ref_pic_buf_lx = *ps_ref_pic; |
| 1373 | ps_ref_pic_buf_lx++; |
| 1374 | } |
| 1375 | } |
| 1376 | ih264d_convert_frm_to_fld_list( |
| 1377 | ps_dpb_mgr->ps_init_dpb[0][0] + MAX_REF_BUFS, &u1_L0, |
| 1378 | ps_dec, u1_num_short_term_bufs); |
| 1379 | |
| 1380 | ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[0][0] + u1_L0; |
| 1381 | } |
| 1382 | |
| 1383 | ps_dec->ps_cur_slice->u1_initial_list_size[0] = u1_L0; |
| 1384 | |
| 1385 | /* Initialize the rest of the entries in the */ |
| 1386 | /* reference list to handle of errors */ |
| 1387 | { |
| 1388 | UWORD8 u1_i; |
| 1389 | pic_buffer_t *ps_ref_pic; |
| 1390 | |
| 1391 | ps_ref_pic = ps_dpb_mgr->ps_init_dpb[0][0]; |
| 1392 | |
| 1393 | if(NULL == ps_ref_pic->pu1_buf1) |
| 1394 | { |
| 1395 | ps_ref_pic = ps_dec->ps_cur_pic; |
| 1396 | } |
| 1397 | for(u1_i = u1_L0; u1_i < u1_max_ref_idx_l0; u1_i++) |
| 1398 | { |
| 1399 | *ps_ref_pic_buf_lx = *ps_ref_pic; |
| 1400 | ps_ref_pic_buf_lx++; |
| 1401 | } |
| 1402 | } |
| 1403 | { |
| 1404 | /* 2. Initialize refIdxL1 */ |
| 1405 | u1_L1 = 0; |
| 1406 | if(u1_field_pic_flag) |
| 1407 | { |
| 1408 | ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[1][0] + MAX_REF_BUFS; |
| 1409 | } |
| 1410 | else |
| 1411 | { |
| 1412 | ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[1][0]; |
| 1413 | } |
| 1414 | |
| 1415 | /* 2.1. Arrange POC's more than CurrPOC in the ascending POC order starting |
| 1416 | from (CurrPOC + 1)*/ |
| 1417 | for(i_temp_poc = i_cur_poc + 1; i_temp_poc <= i_max_st_poc; i_temp_poc++) |
| 1418 | { |
| 1419 | /* Start from ST head */ |
| 1420 | ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| 1421 | for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| 1422 | { |
| 1423 | if((WORD32)ps_next_dpb->ps_pic_buf->i4_poc == i_temp_poc) |
| 1424 | { |
| 1425 | ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| 1426 | ps_next_dpb->ps_pic_buf); |
| 1427 | ps_ref_pic_buf_lx++; |
| 1428 | u1_L1++; |
| 1429 | break; |
| 1430 | } |
| 1431 | ps_next_dpb = ps_next_dpb->ps_prev_short; |
| 1432 | } |
| 1433 | } |
| 1434 | |
| 1435 | if(u1_field_pic_flag) |
| 1436 | { |
| 1437 | i_temp_poc = i_cur_poc; |
| 1438 | } |
| 1439 | else |
| 1440 | { |
| 1441 | i_temp_poc = i_cur_poc - 1; |
| 1442 | } |
| 1443 | |
| 1444 | /* Arrange all short term buffers in output order as given by POC */ |
| 1445 | /* 2.2 Arrange POC's less than CurrPOC in the descending POC order starting |
| 1446 | from (CurrPOC - 1)*/ |
| 1447 | for(; i_temp_poc >= i_min_st_poc; i_temp_poc--) |
| 1448 | { |
| 1449 | /* Start from ST head */ |
| 1450 | ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| 1451 | for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| 1452 | { |
| 1453 | if((WORD32)ps_next_dpb->ps_pic_buf->i4_poc == i_temp_poc) |
| 1454 | { |
| 1455 | ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| 1456 | ps_next_dpb->ps_pic_buf); |
| 1457 | ps_ref_pic_buf_lx++; |
| 1458 | u1_L1++; |
| 1459 | break; |
| 1460 | } |
| 1461 | ps_next_dpb = ps_next_dpb->ps_prev_short; |
| 1462 | } |
| 1463 | } |
| 1464 | |
| 1465 | /* 2.3 Arrange all Long term buffers in ascending order, in LongtermIndex */ |
| 1466 | /* Start from ST head */ |
| 1467 | u1_num_short_term_bufs = u1_L1; |
Harish Mahendrakar | 54cbe1b | 2016-12-05 12:24:09 +0530 | [diff] [blame^] | 1468 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1469 | for(u1_lt_index = u1_min_lt_index; u1_lt_index <= u1_max_lt_index; |
| 1470 | u1_lt_index++) |
| 1471 | { |
Harish Mahendrakar | 54cbe1b | 2016-12-05 12:24:09 +0530 | [diff] [blame^] | 1472 | ps_next_dpb = ps_dpb_mgr->ps_dpb_ht_head; |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1473 | for(i = 0; i < ps_dpb_mgr->u1_num_lt_ref_bufs; i++) |
| 1474 | { |
| 1475 | if(ps_next_dpb->u1_lt_idx == u1_lt_index) |
| 1476 | { |
| 1477 | ih264d_insert_pic_in_ref_pic_listx(ps_ref_pic_buf_lx, |
| 1478 | ps_next_dpb->ps_pic_buf); |
| 1479 | ps_ref_pic_buf_lx->u1_long_term_pic_num = |
| 1480 | ps_ref_pic_buf_lx->u1_long_term_frm_idx; |
| 1481 | ps_ref_pic_buf_lx++; |
| 1482 | u1_L1++; |
| 1483 | break; |
| 1484 | } |
| 1485 | ps_next_dpb = ps_next_dpb->ps_prev_long; |
| 1486 | } |
| 1487 | } |
| 1488 | |
| 1489 | if(u1_field_pic_flag) |
| 1490 | { |
| 1491 | /* Initialize the rest of the entries in the */ |
| 1492 | /* reference list to handle of errors */ |
| 1493 | { |
| 1494 | UWORD8 u1_i; |
| 1495 | pic_buffer_t *ps_ref_pic; |
| 1496 | |
| 1497 | ps_ref_pic = ps_dpb_mgr->ps_init_dpb[1][0] + MAX_REF_BUFS; |
| 1498 | |
| 1499 | if(NULL == ps_ref_pic->pu1_buf1) |
| 1500 | { |
| 1501 | ps_ref_pic = ps_dec->ps_cur_pic; |
| 1502 | } |
| 1503 | for(u1_i = u1_L1; u1_i < u1_max_ref_idx_l1; u1_i++) |
| 1504 | { |
| 1505 | *ps_ref_pic_buf_lx = *ps_ref_pic; |
| 1506 | ps_ref_pic_buf_lx++; |
| 1507 | } |
| 1508 | } |
| 1509 | |
| 1510 | ih264d_convert_frm_to_fld_list( |
| 1511 | ps_dpb_mgr->ps_init_dpb[1][0] + MAX_REF_BUFS, |
| 1512 | &u1_L1, ps_dec, u1_num_short_term_bufs); |
| 1513 | ps_ref_pic_buf_lx = ps_dpb_mgr->ps_init_dpb[1][0] + u1_L1; |
| 1514 | } |
| 1515 | |
| 1516 | ps_dec->ps_cur_slice->u1_initial_list_size[1] = u1_L1; |
| 1517 | |
| 1518 | /* Initialize the rest of the entries in the */ |
| 1519 | /* reference list to handle of errors */ |
| 1520 | { |
| 1521 | UWORD8 u1_i; |
| 1522 | pic_buffer_t *ps_ref_pic; |
| 1523 | |
| 1524 | ps_ref_pic = ps_dpb_mgr->ps_init_dpb[1][0]; |
| 1525 | |
| 1526 | if(NULL == ps_ref_pic->pu1_buf1) |
| 1527 | { |
| 1528 | ps_ref_pic = ps_dec->ps_cur_pic; |
| 1529 | } |
| 1530 | for(u1_i = u1_L1; u1_i < u1_max_ref_idx_l1; u1_i++) |
| 1531 | { |
| 1532 | *ps_ref_pic_buf_lx = *ps_ref_pic; |
| 1533 | ps_ref_pic_buf_lx++; |
| 1534 | } |
| 1535 | } |
| 1536 | |
| 1537 | /* If list0 and list 1 ebtries are same then swap the 0th and 1st entry */ |
| 1538 | /* of list 1 */ |
| 1539 | { |
| 1540 | struct pic_buffer_t *ps_ref_pic1_buf_l0, *ps_ref_pic1_buf_l1; |
| 1541 | struct pic_buffer_t s_ref_pic1_buf_temp; |
| 1542 | |
| 1543 | ps_ref_pic1_buf_l0 = ps_dpb_mgr->ps_init_dpb[0][0]; |
| 1544 | ps_ref_pic1_buf_l1 = ps_dpb_mgr->ps_init_dpb[1][0]; |
| 1545 | |
| 1546 | if((u1_L0 == u1_L1) && (u1_L0 > 1)) |
| 1547 | { |
| 1548 | WORD32 i_index, i_swap; |
| 1549 | |
| 1550 | i_swap = 1; |
| 1551 | |
| 1552 | for(i_index = 0; i_index < u1_L0; i_index++) |
| 1553 | { |
| 1554 | if((ps_ref_pic1_buf_l0[i_index]).pu1_buf1 |
| 1555 | != (ps_ref_pic1_buf_l1[i_index]).pu1_buf1) |
| 1556 | { |
| 1557 | i_swap = 0; |
| 1558 | break; |
| 1559 | } |
| 1560 | } |
| 1561 | if(1 == i_swap) |
| 1562 | { |
| 1563 | memcpy(&s_ref_pic1_buf_temp, &ps_ref_pic1_buf_l1[1], |
| 1564 | sizeof(struct pic_buffer_t)); |
| 1565 | memcpy(&ps_ref_pic1_buf_l1[1], &ps_ref_pic1_buf_l1[0], |
| 1566 | sizeof(struct pic_buffer_t)); |
| 1567 | memcpy(&ps_ref_pic1_buf_l1[0], &s_ref_pic1_buf_temp, |
| 1568 | sizeof(struct pic_buffer_t)); |
| 1569 | } |
| 1570 | } |
| 1571 | } |
| 1572 | } |
| 1573 | } |
| 1574 | |
| 1575 | |
| 1576 | |
| 1577 | void ih264d_get_implicit_weights(dec_struct_t *ps_dec); |
| 1578 | |
| 1579 | /*! |
| 1580 | ************************************************************************** |
| 1581 | * \if Function name : ih264d_one_to_one \endif |
| 1582 | * |
| 1583 | * \brief |
| 1584 | * Initializes forward and backward refernce lists for B slice decoding. |
| 1585 | * |
| 1586 | * |
| 1587 | * \return |
| 1588 | * 0 on Success and Error code otherwise |
| 1589 | ************************************************************************** |
| 1590 | */ |
| 1591 | void ih264d_one_to_one(dec_struct_t *ps_dec, |
| 1592 | struct pic_buffer_t *ps_col_pic, |
| 1593 | directmv_t *ps_direct, |
| 1594 | UWORD8 u1_wd_x, |
| 1595 | WORD32 u2_sub_mb_ofst, |
| 1596 | dec_mb_info_t * ps_cur_mb_info) |
| 1597 | { |
| 1598 | UWORD8 *pu1_col_zero_flag_start, u1_col_mb_pred_mode, u1_num_blks, u1_sub_mb_num; |
| 1599 | UWORD8 u1_init_colzero_flag; |
| 1600 | UNUSED(ps_cur_mb_info); |
| 1601 | pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag + u2_sub_mb_ofst; |
| 1602 | u1_col_mb_pred_mode = pu1_col_zero_flag_start[ps_dec->u1_sub_mb_num]; |
| 1603 | u1_init_colzero_flag = u1_col_mb_pred_mode & 1; |
| 1604 | u1_col_mb_pred_mode >>= 6; |
| 1605 | ps_direct->u1_vert_mv_scale = ONE_TO_ONE; |
| 1606 | ps_direct->u1_col_zeroflag_change = 0; |
| 1607 | |
| 1608 | if(u1_wd_x == MB_SIZE) |
| 1609 | { |
| 1610 | ps_dec->u1_currB_type = (!!u1_col_mb_pred_mode); |
| 1611 | if(u1_col_mb_pred_mode == PRED_16x16) |
| 1612 | { |
| 1613 | ps_direct->i1_num_partitions = 1; |
| 1614 | ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| 1615 | ps_direct->i1_submb_num[0] = 0; |
| 1616 | ps_direct->i1_partitionsize[0] = PRED_16x16; |
| 1617 | |
| 1618 | return; |
| 1619 | } |
| 1620 | else if(u1_col_mb_pred_mode < PRED_8x8) |
| 1621 | { |
| 1622 | ps_direct->i1_num_partitions = 2; |
| 1623 | ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| 1624 | ps_direct->i1_submb_num[0] = 0; |
| 1625 | ps_direct->i1_partitionsize[0] = u1_col_mb_pred_mode; |
| 1626 | u1_sub_mb_num = (u1_col_mb_pred_mode == PRED_16x8) ? 8 : 2; |
| 1627 | ps_direct->i1_submb_num[1] = u1_sub_mb_num; |
| 1628 | ps_direct->i4_mv_indices[1] = u2_sub_mb_ofst |
| 1629 | + ps_direct->i1_submb_num[1]; |
| 1630 | ps_direct->i1_partitionsize[1] = u1_col_mb_pred_mode; |
| 1631 | if((pu1_col_zero_flag_start[u1_sub_mb_num] & 1) != u1_init_colzero_flag) |
| 1632 | ps_direct->u1_col_zeroflag_change = 1; |
| 1633 | return; |
| 1634 | } |
| 1635 | else |
| 1636 | { |
| 1637 | u1_num_blks = 4; |
| 1638 | } |
| 1639 | } |
| 1640 | else |
| 1641 | { |
| 1642 | u1_num_blks = 1; |
| 1643 | } |
| 1644 | |
| 1645 | { |
| 1646 | const UWORD8 *pu1_top_lt_mb_part_idx; |
| 1647 | UWORD8 u1_col_sub_mb_pred_mode, uc_blk, u1_sub_blk, u1_submb_col = 0; |
| 1648 | UWORD8 u1_num_sub_blks, uc_direct8x8inf, *pu1_col_zero_flag, u1_sub_mb_num; |
| 1649 | const UWORD8 *pu1_num_sub_mb_part = |
| 1650 | (const UWORD8 *)gau1_ih264d_num_submb_part; |
| 1651 | UWORD8 i1_num_partitions = 0, partition_size; |
| 1652 | WORD32 mv_index; |
| 1653 | const UWORD8 *pu1_top_lt_sub_mb_idx = gau1_ih264d_submb_indx_mod_sp_drct; |
| 1654 | |
| 1655 | u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| 1656 | uc_direct8x8inf = ps_dec->ps_cur_slice->u1_direct_8x8_inference_flag; |
| 1657 | pu1_top_lt_mb_part_idx = gau1_ih264d_top_left_mb_part_indx_mod |
| 1658 | + (PRED_8x8 << 1) + 1; |
| 1659 | |
| 1660 | for(uc_blk = 0; uc_blk < u1_num_blks; uc_blk++) |
| 1661 | { |
| 1662 | partition_size = PRED_8x8; |
| 1663 | pu1_top_lt_sub_mb_idx = gau1_ih264d_submb_indx_mod_sp_drct; |
| 1664 | if(uc_direct8x8inf == 1) |
| 1665 | { |
| 1666 | u1_submb_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| 1667 | mv_index = u2_sub_mb_ofst + u1_submb_col; |
| 1668 | u1_num_sub_blks = 1; |
| 1669 | } |
| 1670 | else |
| 1671 | { |
| 1672 | /* colMbPart is either 8x8, 8x4, 4x8, 4x4 */ |
| 1673 | pu1_col_zero_flag = pu1_col_zero_flag_start + u1_sub_mb_num; |
| 1674 | u1_col_sub_mb_pred_mode = *pu1_col_zero_flag; |
| 1675 | u1_col_sub_mb_pred_mode = (u1_col_sub_mb_pred_mode & 0x30) >> 4; |
| 1676 | partition_size = (UWORD8)((u1_col_sub_mb_pred_mode) |
| 1677 | | (PRED_8x8 << 2)); |
| 1678 | mv_index = u2_sub_mb_ofst + u1_sub_mb_num; |
| 1679 | pu1_top_lt_sub_mb_idx += (u1_col_sub_mb_pred_mode << 1); |
| 1680 | u1_num_sub_blks = pu1_num_sub_mb_part[u1_col_sub_mb_pred_mode]; |
| 1681 | |
| 1682 | } |
| 1683 | |
| 1684 | for(u1_sub_blk = 0; u1_sub_blk < u1_num_sub_blks; |
| 1685 | u1_sub_blk++, pu1_top_lt_sub_mb_idx++) |
| 1686 | { |
| 1687 | u1_sub_mb_num += *pu1_top_lt_sub_mb_idx; |
| 1688 | mv_index += *pu1_top_lt_sub_mb_idx; |
| 1689 | ps_direct->i4_mv_indices[i1_num_partitions] = mv_index; |
| 1690 | ps_direct->i1_submb_num[i1_num_partitions] = u1_sub_mb_num; |
| 1691 | ps_direct->i1_partitionsize[i1_num_partitions] = partition_size; |
| 1692 | i1_num_partitions++; |
| 1693 | if(!uc_direct8x8inf) |
| 1694 | u1_submb_col = u1_sub_mb_num; |
| 1695 | if((pu1_col_zero_flag_start[u1_submb_col] & 1) |
| 1696 | != u1_init_colzero_flag) |
| 1697 | ps_direct->u1_col_zeroflag_change = 1; |
| 1698 | } |
| 1699 | u1_sub_mb_num = *pu1_top_lt_mb_part_idx++; |
| 1700 | } |
| 1701 | ps_direct->i1_num_partitions = i1_num_partitions; |
| 1702 | } |
| 1703 | } |
| 1704 | /*! |
| 1705 | ************************************************************************** |
| 1706 | * \if Function name : ih264d_mbaff_cross_pmbair \endif |
| 1707 | * |
| 1708 | * \brief |
| 1709 | * Initializes forward and backward refernce lists for B slice decoding. |
| 1710 | * |
| 1711 | * |
| 1712 | * \return |
| 1713 | * 0 on Success and Error code otherwise |
| 1714 | ************************************************************************** |
| 1715 | */ |
| 1716 | void ih264d_mbaff_cross_pmbair(dec_struct_t *ps_dec, |
| 1717 | struct pic_buffer_t *ps_col_pic, |
| 1718 | directmv_t *ps_direct, |
| 1719 | UWORD8 u1_wd_x, |
| 1720 | WORD32 u2_sub_mb_ofst, |
| 1721 | dec_mb_info_t * ps_cur_mb_info) |
| 1722 | { |
| 1723 | UWORD8 *pu1_col_zero_flag_start, *pu1_col_zero_flag, u1_sub_mb_num, |
| 1724 | uc_sub_mb_num_col; |
| 1725 | UWORD8 *pu1_col_zero_flag_right_half; |
| 1726 | WORD32 i4_force_8X8; |
| 1727 | UWORD8 u1_num_blks, u1_col_mb_pred_mode, uc_blk, u1_col_sub_mb_pred_mode, |
| 1728 | u1_col_sub_mb_pred_mode_rt; |
| 1729 | UWORD8 i1_num_partitions = 0, partition_size; |
| 1730 | |
| 1731 | WORD32 mv_index; |
| 1732 | |
| 1733 | UWORD8 u1_num_sub_blks; |
| 1734 | UWORD8 u1_is_cur_mb_fld, i; |
| 1735 | UWORD8 u1_init_colzero_flag; |
| 1736 | |
| 1737 | u1_is_cur_mb_fld = ps_cur_mb_info->u1_mb_field_decodingflag; |
| 1738 | u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| 1739 | ps_direct->u1_col_zeroflag_change = 0; |
| 1740 | /*pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag + u2_sub_mb_ofst; |
| 1741 | u1_col_mb_pred_mode = pu1_col_zero_flag_start[u1_sub_mb_num]; |
| 1742 | u1_init_colzero_flag = u1_col_mb_pred_mode & 1; |
| 1743 | u1_col_mb_pred_mode >>= 6; */ |
| 1744 | if(0 == u1_is_cur_mb_fld) |
| 1745 | { |
| 1746 | ps_direct->u1_vert_mv_scale = FLD_TO_FRM; |
| 1747 | if(u1_wd_x == MB_SIZE) |
| 1748 | { |
| 1749 | pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag |
| 1750 | + u2_sub_mb_ofst; |
| 1751 | u1_col_mb_pred_mode = pu1_col_zero_flag_start[0]; |
| 1752 | u1_init_colzero_flag = u1_col_mb_pred_mode & 1; |
| 1753 | u1_col_mb_pred_mode >>= 6; |
| 1754 | |
| 1755 | |
| 1756 | if(u1_col_mb_pred_mode & 0x2) |
| 1757 | { |
| 1758 | ps_dec->u1_currB_type = 1; |
| 1759 | if(u1_col_mb_pred_mode == PRED_8x16) |
| 1760 | { |
| 1761 | ps_direct->i1_num_partitions = 2; |
| 1762 | ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| 1763 | ps_direct->i1_submb_num[0] = 0; |
| 1764 | ps_direct->i1_partitionsize[0] = PRED_8x16; |
| 1765 | ps_direct->i4_mv_indices[1] = u2_sub_mb_ofst + 2; |
| 1766 | ps_direct->i1_submb_num[1] = 2; |
| 1767 | ps_direct->i1_partitionsize[1] = PRED_8x16; |
| 1768 | if((pu1_col_zero_flag_start[2] & 1) != u1_init_colzero_flag) |
| 1769 | ps_direct->u1_col_zeroflag_change = 1; |
| 1770 | } |
| 1771 | else |
| 1772 | { |
| 1773 | pu1_col_zero_flag = pu1_col_zero_flag_start + u1_sub_mb_num; |
| 1774 | u1_col_sub_mb_pred_mode = (*pu1_col_zero_flag & 0x10);/* 8x4 or 4x4 mode */ |
| 1775 | |
| 1776 | pu1_col_zero_flag_right_half = pu1_col_zero_flag_start |
| 1777 | + u1_sub_mb_num + 2; |
| 1778 | u1_col_sub_mb_pred_mode_rt = |
| 1779 | (*pu1_col_zero_flag_right_half & 0x10);/* 8x4 or 4x4 mode */ |
| 1780 | |
| 1781 | i4_force_8X8 = (u1_col_sub_mb_pred_mode) |
| 1782 | || (u1_col_sub_mb_pred_mode_rt); |
| 1783 | if(i4_force_8X8) |
| 1784 | { |
| 1785 | u1_num_sub_blks = 2; |
| 1786 | partition_size = PRED_8x8; |
| 1787 | } |
| 1788 | else |
| 1789 | { |
| 1790 | partition_size = PRED_8x16; |
| 1791 | u1_num_sub_blks = 1; |
| 1792 | } |
| 1793 | |
| 1794 | for(i = 0; i < 2; i++) |
| 1795 | { |
| 1796 | for(uc_blk = 0; uc_blk < u1_num_sub_blks; uc_blk++) |
| 1797 | { |
| 1798 | uc_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| 1799 | uc_sub_mb_num_col &= 0x7; |
| 1800 | mv_index = u2_sub_mb_ofst + uc_sub_mb_num_col; |
| 1801 | |
| 1802 | ps_direct->i4_mv_indices[i1_num_partitions] = |
| 1803 | mv_index; |
| 1804 | ps_direct->i1_submb_num[i1_num_partitions] = |
| 1805 | u1_sub_mb_num; |
| 1806 | ps_direct->i1_partitionsize[i1_num_partitions] = |
| 1807 | partition_size; |
| 1808 | i1_num_partitions++; |
| 1809 | if((pu1_col_zero_flag_start[uc_sub_mb_num_col] & 1) |
| 1810 | != u1_init_colzero_flag) |
| 1811 | ps_direct->u1_col_zeroflag_change = 1; |
| 1812 | u1_sub_mb_num += 8; |
| 1813 | } |
| 1814 | u1_sub_mb_num = 2; /* move to second half of Cur MB */ |
| 1815 | } |
| 1816 | ps_direct->i1_num_partitions = i1_num_partitions; |
| 1817 | return; |
| 1818 | } |
| 1819 | } |
| 1820 | else |
| 1821 | { |
| 1822 | ps_direct->i1_num_partitions = 1; |
| 1823 | ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| 1824 | ps_direct->i1_submb_num[0] = 0; |
| 1825 | ps_direct->i1_partitionsize[0] = PRED_16x16; |
| 1826 | ps_dec->u1_currB_type = 0; |
| 1827 | return; |
| 1828 | } |
| 1829 | } |
| 1830 | else |
| 1831 | { |
| 1832 | uc_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| 1833 | uc_sub_mb_num_col &= 0x7; |
| 1834 | |
| 1835 | ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst + uc_sub_mb_num_col; |
| 1836 | ps_direct->i1_submb_num[0] = u1_sub_mb_num; |
| 1837 | ps_direct->i1_partitionsize[0] = PRED_8x8; |
| 1838 | ps_direct->i1_num_partitions = 1; |
| 1839 | } |
| 1840 | } |
| 1841 | else |
| 1842 | { |
| 1843 | ps_direct->u1_vert_mv_scale = FRM_TO_FLD; |
| 1844 | pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag + u2_sub_mb_ofst; |
| 1845 | u1_init_colzero_flag = pu1_col_zero_flag_start[0] & 1; |
| 1846 | |
| 1847 | if(u1_wd_x == MB_SIZE) |
| 1848 | { |
| 1849 | UWORD8 u1_submb_col; |
| 1850 | UWORD8 *puc_colZeroFlagStart_bot_mb, uc_colMbPredMode_bot_mb; |
| 1851 | |
| 1852 | pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag |
| 1853 | + u2_sub_mb_ofst; |
| 1854 | u1_col_mb_pred_mode = pu1_col_zero_flag_start[u1_sub_mb_num] >> 6; |
| 1855 | |
| 1856 | puc_colZeroFlagStart_bot_mb = ps_col_pic->pu1_col_zero_flag |
| 1857 | + u2_sub_mb_ofst + 16; |
| 1858 | uc_colMbPredMode_bot_mb = puc_colZeroFlagStart_bot_mb[8] >> 6; |
| 1859 | |
| 1860 | i4_force_8X8 = (u1_col_mb_pred_mode & 0x2) |
| 1861 | || (uc_colMbPredMode_bot_mb & 0x2); |
| 1862 | if(i4_force_8X8) |
| 1863 | { |
| 1864 | u1_num_blks = 2; |
| 1865 | partition_size = PRED_8x8; |
| 1866 | } |
| 1867 | else |
| 1868 | { |
| 1869 | u1_num_blks = 1; |
| 1870 | partition_size = PRED_16x8; |
| 1871 | } |
| 1872 | |
| 1873 | ps_dec->u1_currB_type = 1; |
| 1874 | /*As this mb is derived from 2 Mbs min no of partitions = 2*/ |
| 1875 | for(i = 0; i < 2; i++) |
| 1876 | { |
| 1877 | |
| 1878 | pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag |
| 1879 | + u2_sub_mb_ofst; |
| 1880 | u1_col_mb_pred_mode = pu1_col_zero_flag_start[u1_sub_mb_num] >> 6; |
| 1881 | |
| 1882 | for(uc_blk = 0; uc_blk < u1_num_blks; uc_blk++) |
| 1883 | { |
| 1884 | u1_submb_col = (u1_sub_mb_num & 0x7) ? 1 : 0; |
| 1885 | u1_submb_col += u1_sub_mb_num; |
| 1886 | mv_index = u2_sub_mb_ofst + u1_submb_col; |
| 1887 | |
| 1888 | |
| 1889 | ps_direct->i4_mv_indices[i1_num_partitions] = mv_index; |
| 1890 | ps_direct->i1_submb_num[i1_num_partitions] = u1_sub_mb_num; |
| 1891 | ps_direct->i1_partitionsize[i1_num_partitions] = |
| 1892 | partition_size; |
| 1893 | i1_num_partitions++; |
| 1894 | if((pu1_col_zero_flag_start[u1_submb_col] & 1) |
| 1895 | != u1_init_colzero_flag) |
| 1896 | ps_direct->u1_col_zeroflag_change = 1; |
| 1897 | u1_sub_mb_num += 2; |
| 1898 | } |
| 1899 | u1_sub_mb_num = 8; /* move to second half of Cur MB */ |
| 1900 | u2_sub_mb_ofst += 16;/* move to next Colocated MB */ |
| 1901 | } |
| 1902 | ps_direct->i1_num_partitions = i1_num_partitions; |
| 1903 | return; |
| 1904 | } |
| 1905 | else |
| 1906 | { |
| 1907 | uc_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| 1908 | uc_sub_mb_num_col &= 0xb; |
| 1909 | u2_sub_mb_ofst += (u1_sub_mb_num >> 3) ? 16 : 0; |
| 1910 | |
| 1911 | ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst + uc_sub_mb_num_col; |
| 1912 | ps_direct->i1_submb_num[0] = u1_sub_mb_num; |
| 1913 | ps_direct->i1_partitionsize[0] = PRED_8x8; |
| 1914 | ps_direct->i1_num_partitions = 1; |
| 1915 | return; |
| 1916 | } |
| 1917 | } |
| 1918 | } |
| 1919 | /*! |
| 1920 | ************************************************************************** |
| 1921 | * \if Function name : ih264d_cal_col_pic \endif |
| 1922 | * |
| 1923 | * \brief |
| 1924 | * Finds the colocated picture. |
| 1925 | * |
| 1926 | * |
| 1927 | * \return |
| 1928 | * 0 on Success and Error code otherwise |
| 1929 | ************************************************************************** |
| 1930 | */ |
| 1931 | WORD32 ih264d_cal_col_pic(dec_struct_t *ps_dec) |
| 1932 | { |
| 1933 | struct pic_buffer_t* ps_col_pic = ps_dec->ps_col_pic; |
| 1934 | UWORD8 uc_curpictype, uc_colpictype; |
| 1935 | ps_col_pic = ps_dec->ps_ref_pic_buf_lx[1][0]; |
| 1936 | uc_curpictype = (ps_dec->ps_cur_pic->u1_picturetype & 0x7); |
| 1937 | uc_colpictype = (ps_col_pic->u1_picturetype & 0x7); |
| 1938 | if(uc_curpictype == FRM_PIC) |
| 1939 | { |
| 1940 | if(uc_colpictype == FRM_PIC) |
| 1941 | ps_dec->pf_parse_mvdirect = ih264d_one_to_one; |
| 1942 | else if(uc_colpictype == COMP_FLD_PAIR) |
| 1943 | { |
| 1944 | ps_dec->pf_parse_mvdirect = ih264d_fld_to_frm; |
| 1945 | if(ps_col_pic->i4_top_field_order_cnt |
| 1946 | >= ps_col_pic->i4_bottom_field_order_cnt) |
| 1947 | { |
| 1948 | struct pic_buffer_t* ps_tempPic = ps_col_pic; |
| 1949 | UWORD32 ui_half_num_of_sub_mbs = ((ps_dec->u2_pic_ht |
| 1950 | * ps_dec->u2_pic_wd) >> 5); |
| 1951 | ps_col_pic = ps_dec->ps_ref_pic_buf_lx[1][MAX_REF_BUFS]; |
| 1952 | /* memcpy ps_tempPic to ps_col_pic */ |
| 1953 | *ps_col_pic = *ps_tempPic; |
| 1954 | ps_col_pic->pu1_buf1 = ps_tempPic->pu1_buf1 |
| 1955 | + ps_tempPic->u2_frm_wd_y; |
| 1956 | ps_col_pic->pu1_buf2 = ps_tempPic->pu1_buf2 |
| 1957 | + ps_tempPic->u2_frm_wd_uv; |
| 1958 | ps_col_pic->pu1_buf3 = ps_tempPic->pu1_buf3 |
| 1959 | + ps_tempPic->u2_frm_wd_uv; |
| 1960 | ps_col_pic->pu1_col_zero_flag = ps_tempPic->pu1_col_zero_flag |
| 1961 | + ui_half_num_of_sub_mbs; |
| 1962 | ps_col_pic->ps_mv = ps_tempPic->ps_mv + ui_half_num_of_sub_mbs; |
| 1963 | |
| 1964 | |
| 1965 | ps_col_pic->u1_pic_type = 0;/*complementary reference field pair-refering as frame */ |
| 1966 | |
| 1967 | |
| 1968 | |
| 1969 | } |
| 1970 | } |
| 1971 | else |
| 1972 | { |
| 1973 | UWORD32 i4_error_code; |
| 1974 | i4_error_code = ERROR_DBP_MANAGER_T; |
| 1975 | // i4_error_code |= 1<<IVD_CORRUPTEDDATA; |
| 1976 | return i4_error_code; |
| 1977 | } |
| 1978 | } |
| 1979 | else if(uc_curpictype == AFRM_PIC) |
| 1980 | { |
| 1981 | ps_dec->pf_parse_mvdirect = ih264d_fld_to_mbaff; |
| 1982 | } |
| 1983 | else /* must be a field*/ |
| 1984 | { |
| 1985 | if(uc_colpictype == FRM_PIC) |
| 1986 | ps_dec->pf_parse_mvdirect = ih264d_frm_to_fld; |
| 1987 | else if(uc_colpictype == AFRM_PIC) |
| 1988 | ps_dec->pf_parse_mvdirect = ih264d_mbaff_to_fld; |
| 1989 | else |
| 1990 | ps_dec->pf_parse_mvdirect = ih264d_one_to_one; |
| 1991 | } |
| 1992 | ps_dec->ps_col_pic = ps_col_pic; |
| 1993 | return OK; |
| 1994 | } |
| 1995 | |
| 1996 | /*! |
| 1997 | ************************************************************************** |
| 1998 | * \if Function name : ih264d_frm_to_fld \endif |
| 1999 | * |
| 2000 | * \brief |
| 2001 | * Initializes forward and backward refernce lists for B slice decoding. |
| 2002 | * |
| 2003 | * |
| 2004 | * \return |
| 2005 | * 0 on Success and Error code otherwise |
| 2006 | ************************************************************************** |
| 2007 | */ |
| 2008 | void ih264d_frm_to_fld(dec_struct_t *ps_dec, |
| 2009 | struct pic_buffer_t *ps_col_pic, |
| 2010 | directmv_t *ps_direct, |
| 2011 | UWORD8 u1_wd_x, |
| 2012 | WORD32 u2_sub_mb_ofst, |
| 2013 | dec_mb_info_t * ps_cur_mb_info) |
| 2014 | { |
| 2015 | UWORD8 *pu1_col_zero_flag_start, u1_sub_mb_num; |
| 2016 | UWORD8 u1_num_blks, u1_col_mb_pred_mode, uc_blk; |
| 2017 | UWORD8 i1_num_partitions = 0, partition_size, i; |
| 2018 | WORD32 mv_index; |
| 2019 | UWORD32 increment; |
| 2020 | WORD32 i4_force_8X8; |
| 2021 | UNUSED(ps_cur_mb_info); |
| 2022 | ps_direct->u1_col_zeroflag_change = 1; |
| 2023 | ps_direct->u1_vert_mv_scale = FRM_TO_FLD; |
| 2024 | u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| 2025 | |
| 2026 | /* new calculation specific to this function */ |
| 2027 | if((ps_col_pic->u1_picturetype & 0x7) == FRM_PIC) |
| 2028 | { |
| 2029 | UWORD16 u2_frm_wd_in_mbs = ps_dec->u2_frm_wd_in_mbs; |
| 2030 | increment = (u2_frm_wd_in_mbs << 4); |
| 2031 | /*mbAddrCol = mbAddrCol1 */ |
| 2032 | u2_sub_mb_ofst = (ps_dec->u2_mbx |
| 2033 | + (2 * ps_dec->u2_mby * u2_frm_wd_in_mbs)) << 4; |
| 2034 | } |
| 2035 | else |
| 2036 | increment = 16; |
| 2037 | |
| 2038 | if(u1_wd_x == MB_SIZE) |
| 2039 | { |
| 2040 | ps_dec->u1_currB_type = 1; |
| 2041 | |
| 2042 | { |
| 2043 | UWORD8 *puc_colZeroFlagStart_bot_mb, uc_colMbPredMode_bot_mb; |
| 2044 | |
| 2045 | pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag |
| 2046 | + u2_sub_mb_ofst; |
| 2047 | u1_col_mb_pred_mode = (*pu1_col_zero_flag_start >> 6); |
| 2048 | |
| 2049 | puc_colZeroFlagStart_bot_mb = ps_col_pic->pu1_col_zero_flag |
| 2050 | + u2_sub_mb_ofst + increment; |
| 2051 | uc_colMbPredMode_bot_mb = (*puc_colZeroFlagStart_bot_mb >> 6); |
| 2052 | |
| 2053 | i4_force_8X8 = (u1_col_mb_pred_mode & 0x2) |
| 2054 | || (uc_colMbPredMode_bot_mb & 0x2); |
| 2055 | |
| 2056 | if(i4_force_8X8) |
| 2057 | { |
| 2058 | u1_num_blks = 2; |
| 2059 | partition_size = PRED_8x8; |
| 2060 | } |
| 2061 | else |
| 2062 | { |
| 2063 | partition_size = PRED_16x8; |
| 2064 | u1_num_blks = 1; |
| 2065 | } |
| 2066 | } |
| 2067 | |
| 2068 | /*As this mb is derived from 2 Mbs, min no of partitions = 2*/ |
| 2069 | for(i = 0; i < 2; i++) |
| 2070 | { |
| 2071 | for(uc_blk = 0; uc_blk < u1_num_blks; uc_blk++) |
| 2072 | { |
| 2073 | mv_index = u2_sub_mb_ofst + u1_sub_mb_num; |
| 2074 | mv_index += (u1_sub_mb_num & 0x7) ? 1 : 0; |
| 2075 | |
| 2076 | ps_direct->i4_mv_indices[i1_num_partitions] = mv_index; |
| 2077 | ps_direct->i1_submb_num[i1_num_partitions] = u1_sub_mb_num; |
| 2078 | ps_direct->i1_partitionsize[i1_num_partitions] = partition_size; |
| 2079 | i1_num_partitions++; |
| 2080 | |
| 2081 | u1_sub_mb_num += 2; |
| 2082 | } |
| 2083 | u1_sub_mb_num = 8; /* move to second half of Cur MB */ |
| 2084 | u2_sub_mb_ofst += increment;/* move to next Colocated MB */ |
| 2085 | } |
| 2086 | ps_direct->i1_num_partitions = i1_num_partitions; |
| 2087 | return; |
| 2088 | } |
| 2089 | else |
| 2090 | { |
| 2091 | UWORD8 u1_sub_mb_num_col; |
| 2092 | u1_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| 2093 | u1_sub_mb_num_col &= 0xb; |
| 2094 | u2_sub_mb_ofst += (u1_sub_mb_num >> 3) ? increment : 0; |
| 2095 | |
| 2096 | ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst + u1_sub_mb_num_col; |
| 2097 | ps_direct->i1_submb_num[0] = u1_sub_mb_num; |
| 2098 | ps_direct->i1_partitionsize[0] = PRED_8x8; |
| 2099 | ps_direct->i1_num_partitions = 1; |
| 2100 | return; |
| 2101 | } |
| 2102 | } |
| 2103 | /*! |
| 2104 | ************************************************************************** |
| 2105 | * \if Function name : ih264d_fld_to_frm \endif |
| 2106 | * |
| 2107 | * \brief |
| 2108 | * Initializes forward and backward refernce lists for B slice decoding. |
| 2109 | * |
| 2110 | * |
| 2111 | * \return |
| 2112 | * 0 on Success and Error code otherwise |
| 2113 | ************************************************************************** |
| 2114 | */ |
| 2115 | void ih264d_fld_to_frm(dec_struct_t *ps_dec, |
| 2116 | struct pic_buffer_t *ps_col_pic, |
| 2117 | directmv_t *ps_direct, |
| 2118 | UWORD8 u1_wd_x, |
| 2119 | WORD32 u2_sub_mb_ofst, |
| 2120 | dec_mb_info_t * ps_cur_mb_info) |
| 2121 | { |
| 2122 | UWORD8 *pu1_col_zero_flag_start, *pu1_col_zero_flag, |
| 2123 | *pu1_col_zero_flag_right_half, u1_sub_mb_num, uc_sub_mb_num_col; |
| 2124 | UWORD8 u1_col_mb_pred_mode, uc_blk; |
| 2125 | WORD32 i4_force_8X8; |
| 2126 | |
| 2127 | UNUSED(ps_cur_mb_info); |
| 2128 | ps_direct->u1_vert_mv_scale = FLD_TO_FRM; |
| 2129 | ps_direct->u1_col_zeroflag_change = 1; |
| 2130 | /* new calculation specific to this function for u2_sub_mb_ofst*/ |
| 2131 | u2_sub_mb_ofst = (ps_dec->u2_mbx |
| 2132 | + ((ps_dec->u2_mby >> 1) * ps_dec->u2_frm_wd_in_mbs)) << 4; |
| 2133 | u2_sub_mb_ofst += ((ps_dec->u2_mby & 1) << 3); |
| 2134 | |
| 2135 | if(u1_wd_x == MB_SIZE) |
| 2136 | { |
| 2137 | pu1_col_zero_flag_start = ps_col_pic->pu1_col_zero_flag + u2_sub_mb_ofst; |
| 2138 | u1_col_mb_pred_mode = (*pu1_col_zero_flag_start >> 6); |
| 2139 | ps_dec->u1_currB_type = (!!u1_col_mb_pred_mode); |
| 2140 | |
| 2141 | if(u1_col_mb_pred_mode & 0x2) |
| 2142 | { |
| 2143 | if(u1_col_mb_pred_mode == PRED_8x16) |
| 2144 | { |
| 2145 | ps_direct->i1_num_partitions = 2; |
| 2146 | ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| 2147 | ps_direct->i1_submb_num[0] = 0; |
| 2148 | ps_direct->i1_partitionsize[0] = PRED_8x16; |
| 2149 | ps_direct->i4_mv_indices[1] = u2_sub_mb_ofst + 2; |
| 2150 | ps_direct->i1_submb_num[1] = 2; |
| 2151 | ps_direct->i1_partitionsize[1] = PRED_8x16; |
| 2152 | } |
| 2153 | else |
| 2154 | { |
| 2155 | UWORD8 i1_num_partitions = 0, partition_size; |
| 2156 | UWORD32 mv_index; |
| 2157 | UWORD8 u1_num_sub_blks, i, u1_col_sub_mb_pred_mode, |
| 2158 | u1_col_sub_mb_pred_mode_rt; |
| 2159 | |
| 2160 | u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| 2161 | |
| 2162 | pu1_col_zero_flag = pu1_col_zero_flag_start + u1_sub_mb_num; |
| 2163 | u1_col_sub_mb_pred_mode = (*pu1_col_zero_flag & 0x10);/* 8x4 or 4x4 mode */ |
| 2164 | |
| 2165 | pu1_col_zero_flag_right_half = pu1_col_zero_flag_start + u1_sub_mb_num |
| 2166 | + 2; |
| 2167 | u1_col_sub_mb_pred_mode_rt = (*pu1_col_zero_flag_right_half |
| 2168 | & 0x10);/* 8x4 or 4x4 mode */ |
| 2169 | |
| 2170 | i4_force_8X8 = (u1_col_sub_mb_pred_mode) |
| 2171 | || (u1_col_sub_mb_pred_mode_rt); |
| 2172 | if(i4_force_8X8) |
| 2173 | { |
| 2174 | u1_num_sub_blks = 2; |
| 2175 | partition_size = PRED_8x8; |
| 2176 | } |
| 2177 | else |
| 2178 | { |
| 2179 | partition_size = PRED_8x16; |
| 2180 | u1_num_sub_blks = 1; |
| 2181 | } |
| 2182 | |
| 2183 | for(i = 0; i < 2; i++) |
| 2184 | { |
| 2185 | for(uc_blk = 0; uc_blk < u1_num_sub_blks; uc_blk++) |
| 2186 | { |
| 2187 | uc_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| 2188 | uc_sub_mb_num_col &= 0x7; |
| 2189 | mv_index = u2_sub_mb_ofst + uc_sub_mb_num_col; |
| 2190 | |
| 2191 | ps_direct->i4_mv_indices[i1_num_partitions] = mv_index; |
| 2192 | ps_direct->i1_submb_num[i1_num_partitions] = |
| 2193 | u1_sub_mb_num; |
| 2194 | ps_direct->i1_partitionsize[i1_num_partitions] = |
| 2195 | partition_size; |
| 2196 | i1_num_partitions++; |
| 2197 | u1_sub_mb_num += 8; |
| 2198 | } |
| 2199 | |
| 2200 | u1_sub_mb_num = 2; /* move to second half of Cur MB */ |
| 2201 | |
| 2202 | } |
| 2203 | ps_direct->i1_num_partitions = i1_num_partitions; |
| 2204 | return; |
| 2205 | } |
| 2206 | } |
| 2207 | else |
| 2208 | { |
| 2209 | ps_direct->i1_num_partitions = 1; |
| 2210 | ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst; |
| 2211 | ps_direct->i1_submb_num[0] = 0; |
| 2212 | ps_direct->i1_partitionsize[0] = PRED_16x16; |
| 2213 | return; |
| 2214 | } |
| 2215 | } |
| 2216 | else |
| 2217 | { |
| 2218 | u1_sub_mb_num = ps_dec->u1_sub_mb_num; |
| 2219 | uc_sub_mb_num_col = u1_sub_mb_num | (u1_sub_mb_num >> 1); |
| 2220 | uc_sub_mb_num_col &= 0x7; |
| 2221 | |
| 2222 | ps_direct->i4_mv_indices[0] = u2_sub_mb_ofst + uc_sub_mb_num_col; |
| 2223 | ps_direct->i1_submb_num[0] = u1_sub_mb_num; |
| 2224 | ps_direct->i1_partitionsize[0] = PRED_8x8; |
| 2225 | ps_direct->i1_num_partitions = 1; |
| 2226 | } |
| 2227 | } |
| 2228 | /*! |
| 2229 | ************************************************************************** |
| 2230 | * \if Function name : ih264d_one_to_one \endif |
| 2231 | * |
| 2232 | * \brief |
| 2233 | * Initializes forward and backward refernce lists for B slice decoding. |
| 2234 | * |
| 2235 | * |
| 2236 | * \return |
| 2237 | * 0 on Success and Error code otherwise |
| 2238 | ************************************************************************** |
| 2239 | */ |
| 2240 | void ih264d_mbaff_to_fld(dec_struct_t *ps_dec, |
| 2241 | struct pic_buffer_t *ps_col_pic, |
| 2242 | directmv_t *ps_direct, |
| 2243 | UWORD8 u1_wd_x, |
| 2244 | WORD32 u2_sub_mb_ofst, |
| 2245 | dec_mb_info_t * ps_cur_mb_info) |
| 2246 | { |
| 2247 | UWORD8* pu1_col_zero_flag, u1_iscol_mb_fld; |
| 2248 | u2_sub_mb_ofst <<= 1; |
| 2249 | pu1_col_zero_flag = ps_col_pic->pu1_col_zero_flag + u2_sub_mb_ofst; |
| 2250 | u1_iscol_mb_fld = (*pu1_col_zero_flag & 0x2) >> 1; |
| 2251 | if(u1_iscol_mb_fld) |
| 2252 | { |
| 2253 | u2_sub_mb_ofst += (ps_dec->ps_cur_slice->u1_bottom_field_flag << 4); |
| 2254 | ih264d_one_to_one(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| 2255 | u2_sub_mb_ofst, ps_cur_mb_info); |
| 2256 | } |
| 2257 | else |
| 2258 | ih264d_frm_to_fld(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| 2259 | u2_sub_mb_ofst, ps_cur_mb_info); |
| 2260 | } |
| 2261 | /*! |
| 2262 | ************************************************************************** |
| 2263 | * \if Function name : ih264d_one_to_one \endif |
| 2264 | * |
| 2265 | * \brief |
| 2266 | * Initializes forward and backward refernce lists for B slice decoding. |
| 2267 | * |
| 2268 | * |
| 2269 | * \return |
| 2270 | * 0 on Success and Error code otherwise |
| 2271 | ************************************************************************** |
| 2272 | */ |
| 2273 | void ih264d_fld_to_mbaff(dec_struct_t *ps_dec, |
| 2274 | struct pic_buffer_t *ps_col_pic, |
| 2275 | directmv_t *ps_direct, |
| 2276 | UWORD8 u1_wd_x, |
| 2277 | WORD32 u2_sub_mb_ofst, |
| 2278 | dec_mb_info_t * ps_cur_mb_info) |
| 2279 | { |
| 2280 | if((ps_col_pic->u1_picturetype & 0x7) == COMP_FLD_PAIR) |
| 2281 | { |
| 2282 | /* first calculate the colocated picture which varies with Mb */ |
| 2283 | UWORD8 u1_is_cur_mb_fld; |
| 2284 | u1_is_cur_mb_fld = ps_cur_mb_info->u1_mb_field_decodingflag; |
| 2285 | u2_sub_mb_ofst = (u2_sub_mb_ofst & 0xffe0); /* mbaddrCol5 = curmbaddr/2;*/ |
| 2286 | u2_sub_mb_ofst >>= 1; |
| 2287 | |
| 2288 | ps_col_pic = ps_dec->ps_ref_pic_buf_lx[1][0]; |
| 2289 | if(u1_is_cur_mb_fld) |
| 2290 | { |
| 2291 | if(1 - ps_cur_mb_info->u1_topmb) |
| 2292 | ps_col_pic = ps_dec->ps_ref_pic_buf_lx[1][MAX_REF_BUFS]; |
| 2293 | |
| 2294 | ih264d_one_to_one(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| 2295 | u2_sub_mb_ofst, ps_cur_mb_info); |
| 2296 | } |
| 2297 | else |
| 2298 | { |
| 2299 | |
| 2300 | if(ABS(ps_col_pic->i4_top_field_order_cnt |
| 2301 | - ps_dec->ps_cur_pic->i4_poc) >= |
| 2302 | ABS(ps_dec->ps_cur_pic->i4_poc - ps_col_pic->i4_bottom_field_order_cnt)) |
| 2303 | { |
| 2304 | ps_col_pic = ps_dec->ps_ref_pic_buf_lx[1][MAX_REF_BUFS]; |
| 2305 | } |
| 2306 | |
| 2307 | if(ps_cur_mb_info->u1_topmb == 0) |
| 2308 | u2_sub_mb_ofst += 8; |
| 2309 | ih264d_mbaff_cross_pmbair(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| 2310 | u2_sub_mb_ofst, ps_cur_mb_info); |
| 2311 | } |
| 2312 | ps_dec->ps_col_pic = ps_col_pic; |
| 2313 | } |
| 2314 | else |
| 2315 | { |
| 2316 | UWORD8* pu1_col_zero_flag = ps_col_pic->pu1_col_zero_flag |
| 2317 | + u2_sub_mb_ofst; |
| 2318 | UWORD8 temp, u1_is_cur_mb_fld, u1_iscol_mb_fld; |
| 2319 | |
| 2320 | u1_iscol_mb_fld = (*pu1_col_zero_flag & 0x2) >> 1; |
| 2321 | u1_is_cur_mb_fld = ps_cur_mb_info->u1_mb_field_decodingflag; |
| 2322 | temp = (u1_iscol_mb_fld ^ u1_is_cur_mb_fld); |
| 2323 | |
| 2324 | if(temp == 0) |
| 2325 | ih264d_one_to_one(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| 2326 | u2_sub_mb_ofst, ps_cur_mb_info); |
| 2327 | else |
| 2328 | { |
| 2329 | u2_sub_mb_ofst &= 0xffef; |
| 2330 | if(u1_is_cur_mb_fld == 0) |
| 2331 | { |
| 2332 | if(ABS(ps_col_pic->i4_top_field_order_cnt |
| 2333 | - ps_dec->ps_cur_pic->i4_poc) >= |
| 2334 | ABS(ps_dec->ps_cur_pic->i4_poc - ps_col_pic->i4_bottom_field_order_cnt)) |
| 2335 | { |
| 2336 | u2_sub_mb_ofst += 0x10; |
| 2337 | } |
| 2338 | if(ps_cur_mb_info->u1_topmb == 0) |
| 2339 | u2_sub_mb_ofst += 8; |
| 2340 | } |
| 2341 | ih264d_mbaff_cross_pmbair(ps_dec, ps_col_pic, ps_direct, u1_wd_x, |
| 2342 | u2_sub_mb_ofst, ps_cur_mb_info); |
| 2343 | } |
| 2344 | } |
| 2345 | } |
| 2346 | |