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_intra_mb.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_error_handler.h" 48 #include "ih264d_quant_scaling.h" 49 #include "ih264d_tables.h" 50 51 /*! 52 ************************************************************************** 53 * \if Function name : ih264d_itrans_recon_luma_dc \endif 54 * 55 * \brief 56 * This function does InvTransform, scaling and reconstruction of Luma DC. 57 * 58 * \return 59 * 0 on Success and Error code otherwise 60 ************************************************************************** 61 */ 62 void ih264d_itrans_recon_luma_dc(dec_struct_t *ps_dec, 63 WORD16* pi2_src, 64 WORD16* pi2_coeff_block, 65 const UWORD16 *pu2_weigh_mat) 66 { 67 WORD32 i; 68 WORD16 pi2_out[16]; 69 WORD32 pi4_tmp[16]; 70 WORD16 *pi2_out_ptr = &pi2_out[0]; 71 PROFILE_DISABLE_IQ_IT_RECON_RETURN() 72 ps_dec->pf_ihadamard_scaling_4x4(pi2_src, pi2_out, 73 ps_dec->pu2_quant_scale_y, pu2_weigh_mat, 74 ps_dec->u1_qp_y_div6, pi4_tmp); 75 for(i = 0; i < 4; i++) 76 { 77 pi2_coeff_block[0] = pi2_out_ptr[0]; 78 pi2_coeff_block[4 * 16] = pi2_out_ptr[4]; 79 pi2_coeff_block[8 * 16] = pi2_out_ptr[8]; 80 pi2_coeff_block[12 * 16] = pi2_out_ptr[12]; 81 82 pi2_out_ptr++; /* Point to next column */ 83 pi2_coeff_block += 16; 84 } 85 } 86 /*! 87 ************************************************************************** 88 * \if Function name : ih264d_read_intra_pred_modes \endif 89 * 90 * \brief 91 * Reads the intra pred mode related values of I4x4 MB from bitstream. 92 * 93 * This function will read the prev intra pred mode flags and 94 * stores it in pu1_prev_intra4x4_pred_mode_flag. If the u4_flag 95 * indicates that most probable mode is not intra pred mode, then 96 * the rem_intra4x4_pred_mode is read and stored in 97 * pu1_rem_intra4x4_pred_mode array. 98 * 99 * 100 * \return 101 * 0 on success and Error code otherwise 102 * 103 ************************************************************************** 104 */ 105 WORD32 ih264d_read_intra_pred_modes(dec_struct_t * ps_dec, 106 UWORD8 * pu1_prev_intra4x4_pred_mode_flag, 107 UWORD8 * pu1_rem_intra4x4_pred_mode, 108 UWORD32 u4_trans_form8x8) 109 { 110 WORD32 i4x4_luma_blk_idx = 0, i8x8_luma_blk_idx = 0; 111 112 dec_bit_stream_t * ps_bitstrm = ps_dec->ps_bitstrm; 113 114 if(!u4_trans_form8x8) 115 { 116 for(i4x4_luma_blk_idx = 0; i4x4_luma_blk_idx < 16; ++i4x4_luma_blk_idx) 117 { 118 UWORD32 u4_temp; 119 SWITCHOFFTRACE; 120 121 GETBIT(u4_temp, ps_bitstrm->u4_ofst, ps_bitstrm->pu4_buffer); 122 *pu1_prev_intra4x4_pred_mode_flag = (UWORD8)u4_temp; 123 if(!(*pu1_prev_intra4x4_pred_mode_flag)) 124 { 125 GETBITS(u4_temp, ps_bitstrm->u4_ofst, ps_bitstrm->pu4_buffer, 3); 126 127 *(pu1_rem_intra4x4_pred_mode) = (UWORD8)u4_temp; 128 } 129 130 pu1_prev_intra4x4_pred_mode_flag++; 131 pu1_rem_intra4x4_pred_mode++; 132 } 133 } 134 else 135 { 136 /**********************************************************************/ 137 /* prev_intra4x4_pred_modes to be interpreted as */ 138 /* prev_intra8x8_pred_modes in case of transform 8x8 */ 139 /**********************************************************************/ 140 for(i8x8_luma_blk_idx = 0; i8x8_luma_blk_idx < 4; i8x8_luma_blk_idx++) 141 { 142 UWORD32 u4_temp; 143 GETBIT(u4_temp, ps_bitstrm->u4_ofst, ps_bitstrm->pu4_buffer); 144 *pu1_prev_intra4x4_pred_mode_flag = (UWORD8)u4_temp; 145 if(!(*pu1_prev_intra4x4_pred_mode_flag)) 146 { 147 GETBITS(u4_temp, ps_bitstrm->u4_ofst, ps_bitstrm->pu4_buffer, 3); 148 149 (*pu1_rem_intra4x4_pred_mode) = (UWORD8)u4_temp; 150 } 151 pu1_prev_intra4x4_pred_mode_flag++; 152 pu1_rem_intra4x4_pred_mode++; 153 } 154 } 155 return (0); 156 } 157 WORD32 ih264d_unpack_coeff4x4_4x4blk(dec_struct_t * ps_dec, 158 WORD16 *pi2_out_coeff_data, 159 UWORD8 *pu1_inv_scan) 160 { 161 tu_sblk4x4_coeff_data_t *ps_tu_4x4 = (tu_sblk4x4_coeff_data_t *)ps_dec->pv_proc_tu_coeff_data; 162 UWORD16 u2_sig_coeff_map = ps_tu_4x4->u2_sig_coeff_map; 163 WORD32 idx = 0; 164 WORD16 *pi2_coeff_data = &ps_tu_4x4->ai2_level[0]; 165 WORD32 dc_only_flag = 0; 166 WORD32 num_coeff = 0; 167 168 PROFILE_DISABLE_UNPACK_LUMA() 169 while(u2_sig_coeff_map) 170 { 171 idx = CLZ(u2_sig_coeff_map); 172 173 idx = 31 - idx; 174 RESET_BIT(u2_sig_coeff_map,idx); 175 176 idx = pu1_inv_scan[idx]; 177 pi2_out_coeff_data[idx] = *pi2_coeff_data++; 178 num_coeff++; 179 } 180 181 if((num_coeff == 1) && (idx == 0)) 182 { 183 dc_only_flag = 1; 184 } 185 186 { 187 WORD32 offset; 188 offset = (UWORD8 *)pi2_coeff_data - (UWORD8 *)ps_tu_4x4; 189 offset = ALIGN4(offset); 190 ps_dec->pv_proc_tu_coeff_data = (void *)((UWORD8 *)ps_dec->pv_proc_tu_coeff_data + offset); 191 } 192 193 return dc_only_flag; 194 } 195 196 UWORD32 ih264d_unpack_coeff4x4_8x8blk(dec_struct_t * ps_dec, 197 dec_mb_info_t * ps_cur_mb_info, 198 UWORD16 ui2_luma_csbp, 199 WORD16 *pi2_out_coeff_data) 200 { 201 UWORD8 *pu1_inv_scan; 202 UWORD8 u1_mb_field_decoding_flag = ps_cur_mb_info->u1_mb_field_decodingflag; 203 UWORD8 u1_field_coding_flag = ps_cur_mb_info->ps_curmb->u1_mb_fld; 204 UWORD32 u4_luma_dc_only_csbp = 0; 205 WORD32 dc_only_flag = 0; 206 207 PROFILE_DISABLE_UNPACK_LUMA() 208 if(u1_field_coding_flag || u1_mb_field_decoding_flag) 209 { 210 pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan_fld; 211 } 212 else 213 { 214 pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan; 215 } 216 217 // sub 0 218 if(ui2_luma_csbp & 0x1) 219 { 220 memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); 221 dc_only_flag = ih264d_unpack_coeff4x4_4x4blk(ps_dec, 222 pi2_out_coeff_data, 223 pu1_inv_scan); 224 225 INSERT_BIT(u4_luma_dc_only_csbp, 0, dc_only_flag); 226 } 227 228 pi2_out_coeff_data += 16; 229 // sub 1 230 if(ui2_luma_csbp & 0x2) 231 { 232 memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); 233 dc_only_flag = ih264d_unpack_coeff4x4_4x4blk(ps_dec, 234 pi2_out_coeff_data, 235 pu1_inv_scan); 236 INSERT_BIT(u4_luma_dc_only_csbp, 1, dc_only_flag); 237 } 238 239 pi2_out_coeff_data += 16 + 32; 240 // sub 2 241 if(ui2_luma_csbp & 0x10) 242 { 243 memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); 244 dc_only_flag = ih264d_unpack_coeff4x4_4x4blk(ps_dec, 245 pi2_out_coeff_data, 246 pu1_inv_scan); 247 INSERT_BIT(u4_luma_dc_only_csbp, 4, dc_only_flag); 248 } 249 250 pi2_out_coeff_data += 16; 251 // sub 3 252 if(ui2_luma_csbp & 0x20) 253 { 254 memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); 255 dc_only_flag = ih264d_unpack_coeff4x4_4x4blk(ps_dec, 256 pi2_out_coeff_data, 257 pu1_inv_scan); 258 INSERT_BIT(u4_luma_dc_only_csbp, 5, dc_only_flag); 259 } 260 return u4_luma_dc_only_csbp; 261 } 262 WORD32 ih264d_unpack_coeff8x8_8x8blk_cavlc(dec_struct_t * ps_dec, 263 dec_mb_info_t * ps_cur_mb_info, 264 UWORD16 ui2_luma_csbp, 265 WORD16 *pi2_out_coeff_data) 266 { 267 UWORD8 *pu1_inv_scan; 268 UWORD8 u1_mb_field_decoding_flag = ps_cur_mb_info->u1_mb_field_decodingflag; 269 UWORD8 u1_field_coding_flag = ps_cur_mb_info->ps_curmb->u1_mb_fld; 270 WORD32 dc_only_flag = 0; 271 272 PROFILE_DISABLE_UNPACK_LUMA() 273 if(ui2_luma_csbp & 0x33) 274 { 275 memset(pi2_out_coeff_data,0,64*sizeof(WORD16)); 276 } 277 278 if(!u1_mb_field_decoding_flag) 279 { 280 pu1_inv_scan = 281 (UWORD8*)gau1_ih264d_inv_scan_prog8x8_cavlc[0]; 282 } 283 else 284 { 285 pu1_inv_scan = 286 (UWORD8*)gau1_ih264d_inv_scan_int8x8_cavlc[0]; 287 } 288 // sub 0 289 if(ui2_luma_csbp & 0x1) 290 { 291 dc_only_flag = ih264d_unpack_coeff4x4_4x4blk(ps_dec, 292 pi2_out_coeff_data, 293 pu1_inv_scan); 294 } 295 296 if(!u1_mb_field_decoding_flag) 297 { 298 pu1_inv_scan = 299 (UWORD8*)gau1_ih264d_inv_scan_prog8x8_cavlc[1]; 300 } 301 else 302 { 303 pu1_inv_scan = 304 (UWORD8*)gau1_ih264d_inv_scan_int8x8_cavlc[1]; 305 } 306 // sub 1 307 if(ui2_luma_csbp & 0x2) 308 { 309 dc_only_flag = 0; 310 ih264d_unpack_coeff4x4_4x4blk(ps_dec, 311 pi2_out_coeff_data, 312 pu1_inv_scan); 313 } 314 315 if(!u1_mb_field_decoding_flag) 316 { 317 pu1_inv_scan = 318 (UWORD8*)gau1_ih264d_inv_scan_prog8x8_cavlc[2]; 319 } 320 else 321 { 322 pu1_inv_scan = 323 (UWORD8*)gau1_ih264d_inv_scan_int8x8_cavlc[2]; 324 } 325 // sub 2 326 if(ui2_luma_csbp & 0x10) 327 { 328 dc_only_flag = 0; 329 ih264d_unpack_coeff4x4_4x4blk(ps_dec, 330 pi2_out_coeff_data, 331 pu1_inv_scan); 332 } 333 334 if(!u1_mb_field_decoding_flag) 335 { 336 pu1_inv_scan = 337 (UWORD8*)gau1_ih264d_inv_scan_prog8x8_cavlc[3]; 338 } 339 else 340 { 341 pu1_inv_scan = 342 (UWORD8*)gau1_ih264d_inv_scan_int8x8_cavlc[3]; 343 } 344 // sub 3 345 if(ui2_luma_csbp & 0x20) 346 { 347 dc_only_flag = 0; 348 ih264d_unpack_coeff4x4_4x4blk(ps_dec, 349 pi2_out_coeff_data, 350 pu1_inv_scan); 351 } 352 return dc_only_flag; 353 } 354 void ih264d_unpack_coeff4x4_8x8blk_chroma(dec_struct_t * ps_dec, 355 dec_mb_info_t * ps_cur_mb_info, 356 UWORD16 ui2_chroma_csbp, 357 WORD16 *pi2_out_coeff_data) 358 { 359 UWORD8 *pu1_inv_scan; 360 UWORD8 u1_mb_field_decoding_flag = ps_cur_mb_info->u1_mb_field_decodingflag; 361 UWORD8 u1_field_coding_flag = ps_cur_mb_info->ps_curmb->u1_mb_fld; 362 363 PROFILE_DISABLE_UNPACK_CHROMA() 364 if(u1_field_coding_flag || u1_mb_field_decoding_flag) 365 { 366 pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan_fld; 367 } 368 else 369 { 370 pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan; 371 } 372 373 if(ui2_chroma_csbp & 0x1) 374 { 375 memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); 376 ih264d_unpack_coeff4x4_4x4blk(ps_dec, 377 pi2_out_coeff_data, 378 pu1_inv_scan); 379 } 380 pi2_out_coeff_data += 16; 381 if(ui2_chroma_csbp & 0x2) 382 { 383 memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); 384 ih264d_unpack_coeff4x4_4x4blk(ps_dec, 385 pi2_out_coeff_data, 386 pu1_inv_scan); 387 } 388 389 pi2_out_coeff_data += 16; 390 if(ui2_chroma_csbp & 0x4) 391 { 392 memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); 393 ih264d_unpack_coeff4x4_4x4blk(ps_dec, 394 pi2_out_coeff_data, 395 pu1_inv_scan); 396 } 397 398 pi2_out_coeff_data += 16; 399 if(ui2_chroma_csbp & 0x8) 400 { 401 memset(pi2_out_coeff_data,0,16*sizeof(WORD16)); 402 ih264d_unpack_coeff4x4_4x4blk(ps_dec, 403 pi2_out_coeff_data, 404 pu1_inv_scan); 405 } 406 } 407 UWORD32 ih264d_unpack_luma_coeff4x4_mb(dec_struct_t * ps_dec, 408 dec_mb_info_t * ps_cur_mb_info, 409 UWORD8 intra_flag) 410 { 411 UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; 412 UWORD16 ui2_luma_csbp = ps_cur_mb_info->u2_luma_csbp; 413 UWORD8 *pu1_inv_scan = ps_dec->pu1_inv_scan; 414 WORD16 *pi2_coeff_data = ps_dec->pi2_coeff_data; 415 416 PROFILE_DISABLE_UNPACK_LUMA() 417 if(!ps_cur_mb_info->u1_tran_form8x8) 418 { 419 UWORD32 u4_luma_dc_only_csbp = 0; 420 UWORD32 u4_temp = 0; 421 WORD16* pi2_dc_val = NULL; 422 /* 423 * Reserve the pointer to dc vals. The dc vals will be copied 424 * after unpacking of ac vals since memset to 0 inside. 425 */ 426 if(intra_flag && (u1_mb_type != I_4x4_MB)) 427 { 428 if(CHECKBIT(ps_cur_mb_info->u1_yuv_dc_block_flag,0)) 429 { 430 pi2_dc_val = (WORD16 *)ps_dec->pv_proc_tu_coeff_data; 431 432 ps_dec->pv_proc_tu_coeff_data = (void *)(pi2_dc_val + 16); 433 } 434 } 435 436 if(ui2_luma_csbp) 437 { 438 pi2_coeff_data = ps_dec->pi2_coeff_data; 439 u4_temp = ih264d_unpack_coeff4x4_8x8blk(ps_dec, 440 ps_cur_mb_info, 441 ui2_luma_csbp, 442 pi2_coeff_data); 443 u4_luma_dc_only_csbp = u4_temp; 444 445 pi2_coeff_data += 32; 446 447 ui2_luma_csbp = ui2_luma_csbp >> 2; 448 u4_temp = ih264d_unpack_coeff4x4_8x8blk(ps_dec, 449 ps_cur_mb_info, 450 ui2_luma_csbp, 451 pi2_coeff_data); 452 453 u4_luma_dc_only_csbp |= (u4_temp << 2); 454 455 pi2_coeff_data += 32 + 64; 456 457 ui2_luma_csbp = ui2_luma_csbp >> 6; 458 u4_temp = ih264d_unpack_coeff4x4_8x8blk(ps_dec, 459 ps_cur_mb_info, 460 ui2_luma_csbp, 461 pi2_coeff_data); 462 463 u4_luma_dc_only_csbp |= (u4_temp << 8); 464 465 pi2_coeff_data += 32; 466 467 ui2_luma_csbp = ui2_luma_csbp >> 2; 468 u4_temp = ih264d_unpack_coeff4x4_8x8blk(ps_dec, 469 ps_cur_mb_info, 470 ui2_luma_csbp, 471 pi2_coeff_data); 472 u4_luma_dc_only_csbp |= (u4_temp << 10); 473 } 474 475 if(pi2_dc_val != NULL) 476 { 477 WORD32 i; 478 pi2_coeff_data = ps_dec->pi2_coeff_data; 479 for(i = 0; i < 4; i++) 480 { 481 pi2_coeff_data[0] = pi2_dc_val[0]; 482 pi2_coeff_data[4 * 16] = pi2_dc_val[4]; 483 pi2_coeff_data[8 * 16] = pi2_dc_val[8]; 484 pi2_coeff_data[12 * 16] = pi2_dc_val[12]; 485 486 pi2_dc_val++; /* Point to next column */ 487 pi2_coeff_data += 16; 488 } 489 u4_luma_dc_only_csbp = ps_cur_mb_info->u2_luma_csbp ^ 0xFFFF; 490 } 491 return u4_luma_dc_only_csbp; 492 } 493 else 494 { 495 UWORD32 u4_luma_dc_only_cbp = 0; 496 WORD32 dc_only_flag; 497 if(ui2_luma_csbp) 498 { 499 pi2_coeff_data = ps_dec->pi2_coeff_data; 500 dc_only_flag = ih264d_unpack_coeff8x8_8x8blk_cavlc(ps_dec, 501 ps_cur_mb_info, 502 ui2_luma_csbp, 503 pi2_coeff_data); 504 INSERT_BIT(u4_luma_dc_only_cbp, 0, dc_only_flag); 505 506 pi2_coeff_data += 64; 507 508 ui2_luma_csbp = ui2_luma_csbp >> 2; 509 dc_only_flag = ih264d_unpack_coeff8x8_8x8blk_cavlc(ps_dec, 510 ps_cur_mb_info, 511 ui2_luma_csbp, 512 pi2_coeff_data); 513 514 INSERT_BIT(u4_luma_dc_only_cbp, 1, dc_only_flag); 515 516 pi2_coeff_data += 64; 517 518 ui2_luma_csbp = ui2_luma_csbp >> 6; 519 dc_only_flag = ih264d_unpack_coeff8x8_8x8blk_cavlc(ps_dec, 520 ps_cur_mb_info, 521 ui2_luma_csbp, 522 pi2_coeff_data); 523 524 INSERT_BIT(u4_luma_dc_only_cbp, 2, dc_only_flag); 525 526 pi2_coeff_data += 64; 527 ui2_luma_csbp = ui2_luma_csbp >> 2; 528 dc_only_flag = ih264d_unpack_coeff8x8_8x8blk_cavlc(ps_dec, 529 ps_cur_mb_info, 530 ui2_luma_csbp, 531 pi2_coeff_data); 532 INSERT_BIT(u4_luma_dc_only_cbp, 3, dc_only_flag); 533 } 534 return u4_luma_dc_only_cbp; 535 } 536 537 } 538 539 void ih264d_unpack_chroma_coeff4x4_mb(dec_struct_t * ps_dec, 540 dec_mb_info_t * ps_cur_mb_info) 541 { 542 UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; 543 UWORD16 ui2_chroma_csbp = ps_cur_mb_info->u2_chroma_csbp; 544 UWORD8 *pu1_inv_scan = ps_dec->pu1_inv_scan; 545 WORD16 *pi2_coeff_data = ps_dec->pi2_coeff_data; 546 WORD32 i; 547 WORD16 *pi2_dc_val_u = NULL; 548 WORD16 *pi2_dc_val_v = NULL; 549 550 PROFILE_DISABLE_UNPACK_CHROMA() 551 if((ps_cur_mb_info->u1_cbp >> 4) == CBPC_ALLZERO) 552 return; 553 554 /* 555 * Reserve the pointers to dc vals. The dc vals will be copied 556 * after unpacking of ac vals since memset to 0 inside. 557 */ 558 if(CHECKBIT(ps_cur_mb_info->u1_yuv_dc_block_flag,1)) 559 { 560 pi2_dc_val_u = (WORD16 *)ps_dec->pv_proc_tu_coeff_data; 561 562 ps_dec->pv_proc_tu_coeff_data = (void *)(pi2_dc_val_u + 4); 563 } 564 if(CHECKBIT(ps_cur_mb_info->u1_yuv_dc_block_flag,2)) 565 { 566 pi2_dc_val_v = (WORD16 *)ps_dec->pv_proc_tu_coeff_data; 567 568 ps_dec->pv_proc_tu_coeff_data = (void *)(pi2_dc_val_v + 4); 569 } 570 571 if((ps_cur_mb_info->u1_cbp >> 4) == CBPC_NONZERO) 572 { 573 pi2_coeff_data = ps_dec->pi2_coeff_data; 574 ih264d_unpack_coeff4x4_8x8blk_chroma(ps_dec, 575 ps_cur_mb_info, 576 ui2_chroma_csbp, 577 pi2_coeff_data); 578 579 pi2_coeff_data += 64; 580 ui2_chroma_csbp = ui2_chroma_csbp >> 4; 581 ih264d_unpack_coeff4x4_8x8blk_chroma(ps_dec, 582 ps_cur_mb_info, 583 ui2_chroma_csbp, 584 pi2_coeff_data); 585 586 } 587 588 pi2_coeff_data = ps_dec->pi2_coeff_data; 589 if(pi2_dc_val_u != NULL) 590 { 591 pi2_coeff_data[0] = *pi2_dc_val_u++; 592 pi2_coeff_data[1 * 16] = *pi2_dc_val_u++; 593 pi2_coeff_data[2 * 16] = *pi2_dc_val_u++; 594 pi2_coeff_data[3 * 16] = *pi2_dc_val_u++; 595 } 596 else 597 { 598 pi2_coeff_data[0] = 0; 599 pi2_coeff_data[1 * 16] = 0; 600 pi2_coeff_data[2 * 16] = 0; 601 pi2_coeff_data[3 * 16] = 0; 602 } 603 pi2_coeff_data += 64; 604 if(pi2_dc_val_v != NULL) 605 { 606 pi2_coeff_data[0] = *pi2_dc_val_v++; 607 pi2_coeff_data[1 * 16] = *pi2_dc_val_v++; 608 pi2_coeff_data[2 * 16] = *pi2_dc_val_v++; 609 pi2_coeff_data[3 * 16] = *pi2_dc_val_v++; 610 } 611 else 612 { 613 pi2_coeff_data[0] = 0; 614 pi2_coeff_data[1 * 16] = 0; 615 pi2_coeff_data[2 * 16] = 0; 616 pi2_coeff_data[3 * 16] = 0; 617 } 618 } 619 UWORD32 ih264d_unpack_luma_coeff8x8_mb(dec_struct_t * ps_dec, 620 dec_mb_info_t * ps_cur_mb_info) 621 { 622 WORD32 blk_8x8_cnt; 623 WORD16 *pi2_out_coeff_data = ps_dec->pi2_coeff_data; 624 UWORD8 u1_field_coding_flag = ps_cur_mb_info->ps_curmb->u1_mb_fld; 625 UWORD8 *pu1_inv_scan; 626 UWORD32 u4_luma_dc_only_cbp = 0; 627 628 PROFILE_DISABLE_UNPACK_LUMA() 629 if(!u1_field_coding_flag) 630 { 631 /*******************************************************************/ 632 /* initializing inverse scan matrices */ 633 /*******************************************************************/ 634 pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan_prog8x8_cabac; 635 } 636 else 637 { 638 /*******************************************************************/ 639 /* initializing inverse scan matrices */ 640 /*******************************************************************/ 641 pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan_int8x8_cabac; 642 } 643 644 for(blk_8x8_cnt = 0; blk_8x8_cnt < 4; blk_8x8_cnt++) 645 { 646 if(CHECKBIT(ps_cur_mb_info->u1_cbp, blk_8x8_cnt)) 647 { 648 tu_blk8x8_coeff_data_t *ps_tu_8x8 = (tu_blk8x8_coeff_data_t *)ps_dec->pv_proc_tu_coeff_data; 649 UWORD32 u4_sig_coeff_map; 650 WORD32 idx = 0; 651 WORD16 *pi2_coeff_data = &ps_tu_8x8->ai2_level[0]; 652 WORD32 num_coeff = 0; 653 654 /* memset 64 coefficient to zero */ 655 memset(pi2_out_coeff_data,0,64*sizeof(WORD16)); 656 657 u4_sig_coeff_map = ps_tu_8x8->au4_sig_coeff_map[1]; 658 659 while(u4_sig_coeff_map) 660 { 661 idx = CLZ(u4_sig_coeff_map); 662 663 idx = 31 - idx; 664 RESET_BIT(u4_sig_coeff_map,idx); 665 666 idx = pu1_inv_scan[idx + 32]; 667 pi2_out_coeff_data[idx] = *pi2_coeff_data++; 668 num_coeff++; 669 } 670 671 u4_sig_coeff_map = ps_tu_8x8->au4_sig_coeff_map[0]; 672 while(u4_sig_coeff_map) 673 { 674 idx = CLZ(u4_sig_coeff_map); 675 676 idx = 31 - idx; 677 RESET_BIT(u4_sig_coeff_map,idx); 678 679 idx = pu1_inv_scan[idx]; 680 pi2_out_coeff_data[idx] = *pi2_coeff_data++; 681 num_coeff++; 682 } 683 684 if((num_coeff == 1) && (idx == 0)) 685 { 686 SET_BIT(u4_luma_dc_only_cbp,blk_8x8_cnt); 687 } 688 689 690 { 691 WORD32 offset; 692 offset = (UWORD8 *)pi2_coeff_data - (UWORD8 *)ps_tu_8x8; 693 offset = ALIGN4(offset); 694 ps_dec->pv_proc_tu_coeff_data = (void *)((UWORD8 *)ps_dec->pv_proc_tu_coeff_data + offset); 695 } 696 } 697 pi2_out_coeff_data += 64; 698 } 699 700 return u4_luma_dc_only_cbp; 701 } 702 /*! 703 ************************************************************************** 704 * \if Function name : ih264d_process_intra_mb \endif 705 * 706 * \brief 707 * This function decodes an I MB. Intraprediction is carried out followed 708 * by InvTramsform. Both IntraPrediction and Reconstrucion are carried out 709 * row buffer itself. 710 * 711 * 712 * \return 713 * 0 on Success and Error code otherwise 714 ************************************************************************** 715 */ 716 WORD32 ih264d_process_intra_mb(dec_struct_t * ps_dec, 717 dec_mb_info_t * ps_cur_mb_info, 718 UWORD8 u1_mb_num) 719 { 720 UWORD8 u1_mb_type = ps_cur_mb_info->u1_mb_type; 721 UWORD8 uc_temp = ps_cur_mb_info->u1_mb_ngbr_availablity; 722 UWORD8 u1_top_available = BOOLEAN(uc_temp & TOP_MB_AVAILABLE_MASK); 723 UWORD8 u1_left_available = BOOLEAN(uc_temp & LEFT_MB_AVAILABLE_MASK); 724 UWORD8 u1_use_top_right_mb = BOOLEAN(uc_temp & TOP_RIGHT_MB_AVAILABLE_MASK); 725 UWORD8 u1_use_top_left_mb = BOOLEAN(uc_temp & TOP_LEFT_MB_AVAILABLE_MASK); 726 UWORD8 uc_useTopMB = u1_top_available; 727 UWORD16 u2_use_left_mb = u1_left_available; 728 UWORD16 u2_use_left_mb_pack; 729 UWORD8 *pu1_luma_pred_buffer; 730 /* CHANGED CODE */ 731 UWORD8 *pu1_luma_rec_buffer; 732 UWORD8 *puc_top; 733 734 mb_neigbour_params_t *ps_left_mb; 735 mb_neigbour_params_t *ps_top_mb; 736 mb_neigbour_params_t *ps_top_right_mb; 737 mb_neigbour_params_t *ps_curmb; 738 739 UWORD16 u2_mbx = ps_cur_mb_info->u2_mbx; 740 UWORD32 ui_pred_width, ui_rec_width; 741 WORD16 *pi2_y_coeff; 742 UWORD8 u1_mbaff, u1_topmb, u1_mb_field_decoding_flag; 743 UWORD32 u4_num_pmbair; 744 UWORD16 ui2_luma_csbp = ps_cur_mb_info->u2_luma_csbp; 745 UWORD8 *pu1_yleft, *pu1_ytop_left; 746 /* Chroma variables*/ 747 UWORD8 *pu1_top_u; 748 UWORD8 *pu1_uleft; 749 UWORD8 *pu1_u_top_left; 750 /* CHANGED CODE */ 751 UWORD8 *pu1_mb_cb_rei1_buffer, *pu1_mb_cr_rei1_buffer; 752 UWORD32 u4_recwidth_cr; 753 /* CHANGED CODE */ 754 tfr_ctxt_t *ps_frame_buf = ps_dec->ps_frame_buf_ip_recon; 755 UWORD32 u4_luma_dc_only_csbp = 0; 756 UWORD32 u4_luma_dc_only_cbp = 0; 757 758 UWORD8 *pu1_prev_intra4x4_pred_mode_data = (UWORD8 *)ps_dec->pv_proc_tu_coeff_data; //Pointer to keep track of intra4x4_pred_mode data in pv_proc_tu_coeff_data buffer 759 u1_mbaff = ps_dec->ps_cur_slice->u1_mbaff_frame_flag; 760 u1_topmb = ps_cur_mb_info->u1_topmb; 761 u4_num_pmbair = (u1_mb_num >> u1_mbaff); 762 763 764 /*--------------------------------------------------------------------*/ 765 /* Find the current MB's mb params */ 766 /*--------------------------------------------------------------------*/ 767 u1_mb_field_decoding_flag = ps_cur_mb_info->u1_mb_field_decodingflag; 768 769 ps_curmb = ps_cur_mb_info->ps_curmb; 770 ps_top_mb = ps_cur_mb_info->ps_top_mb; 771 ps_left_mb = ps_cur_mb_info->ps_left_mb; 772 ps_top_right_mb = ps_cur_mb_info->ps_top_right_mb; 773 774 /*--------------------------------------------------------------------*/ 775 /* Check whether neighbouring MB is Inter MB and */ 776 /* constrained intra pred is 1. */ 777 /*--------------------------------------------------------------------*/ 778 u2_use_left_mb_pack = (u2_use_left_mb << 8) + u2_use_left_mb; 779 780 if(ps_dec->ps_cur_pps->u1_constrained_intra_pred_flag) 781 { 782 UWORD8 u1_left = (UWORD8)u2_use_left_mb; 783 784 uc_useTopMB = uc_useTopMB 785 && ((ps_top_mb->u1_mb_type != P_MB) 786 && (ps_top_mb->u1_mb_type != B_MB)); 787 u2_use_left_mb = u2_use_left_mb 788 && ((ps_left_mb->u1_mb_type != P_MB) 789 && (ps_left_mb->u1_mb_type != B_MB)); 790 791 u2_use_left_mb_pack = (u2_use_left_mb << 8) + u2_use_left_mb; 792 if(u1_mbaff) 793 { 794 if(u1_mb_field_decoding_flag ^ ps_left_mb->u1_mb_fld) 795 { 796 u1_left = u1_left 797 && (((ps_left_mb + 1)->u1_mb_type != P_MB) 798 && ((ps_left_mb + 1)->u1_mb_type 799 != B_MB)); 800 u2_use_left_mb = u2_use_left_mb && u1_left; 801 if(u1_mb_field_decoding_flag) 802 u2_use_left_mb_pack = (u1_left << 8) 803 + (u2_use_left_mb_pack & 0xff); 804 else 805 u2_use_left_mb_pack = (u2_use_left_mb << 8) 806 + (u2_use_left_mb); 807 } 808 } 809 u1_use_top_right_mb = 810 u1_use_top_right_mb 811 && ((ps_top_right_mb->u1_mb_type != P_MB) 812 && (ps_top_right_mb->u1_mb_type 813 != B_MB)); 814 815 u1_use_top_left_mb = 816 u1_use_top_left_mb 817 && ((ps_cur_mb_info->u1_topleft_mbtype != P_MB) 818 && (ps_cur_mb_info->u1_topleft_mbtype 819 != B_MB)); 820 } 821 822 /*********************Common pointer calculations *************************/ 823 /* CHANGED CODE */ 824 pu1_luma_pred_buffer = ps_dec->pu1_y; 825 pu1_luma_rec_buffer = ps_frame_buf->pu1_dest_y + (u4_num_pmbair << 4); 826 pu1_mb_cb_rei1_buffer = ps_frame_buf->pu1_dest_u 827 + (u4_num_pmbair << 3) * YUV420SP_FACTOR; 828 pu1_mb_cr_rei1_buffer = ps_frame_buf->pu1_dest_v + (u4_num_pmbair << 3); 829 ui_pred_width = MB_SIZE; 830 ui_rec_width = ps_dec->u2_frm_wd_y << u1_mb_field_decoding_flag; 831 u4_recwidth_cr = ps_dec->u2_frm_wd_uv << u1_mb_field_decoding_flag; 832 /************* Current and top luma pointer *****************/ 833 834 if(u1_mbaff) 835 { 836 if(u1_topmb == 0) 837 { 838 pu1_luma_rec_buffer += ( 839 u1_mb_field_decoding_flag ? 840 (ui_rec_width >> 1) : 841 (ui_rec_width << 4)); 842 pu1_mb_cb_rei1_buffer += ( 843 u1_mb_field_decoding_flag ? 844 (u4_recwidth_cr >> 1) : 845 (u4_recwidth_cr << 3)); 846 pu1_mb_cr_rei1_buffer += ( 847 u1_mb_field_decoding_flag ? 848 (u4_recwidth_cr >> 1) : 849 (u4_recwidth_cr << 3)); 850 } 851 } 852 853 /* CHANGED CODE */ 854 if(ps_dec->u4_use_intrapred_line_copy == 1) 855 { 856 puc_top = ps_dec->pu1_prev_y_intra_pred_line + (ps_cur_mb_info->u2_mbx << 4); 857 pu1_top_u = ps_dec->pu1_prev_u_intra_pred_line 858 + (ps_cur_mb_info->u2_mbx << 3) * YUV420SP_FACTOR; 859 } 860 else 861 { 862 puc_top = pu1_luma_rec_buffer - ui_rec_width; 863 pu1_top_u = pu1_mb_cb_rei1_buffer - u4_recwidth_cr; 864 } 865 /* CHANGED CODE */ 866 867 /************* Left pointer *****************/ 868 pu1_yleft = pu1_luma_rec_buffer - 1; 869 pu1_uleft = pu1_mb_cb_rei1_buffer - 1 * YUV420SP_FACTOR; 870 871 /**************Top Left pointer calculation**********/ 872 pu1_ytop_left = puc_top - 1; 873 pu1_u_top_left = pu1_top_u - 1 * YUV420SP_FACTOR; 874 875 /* CHANGED CODE */ 876 PROFILE_DISABLE_INTRA_PRED() 877 { 878 pu1_prev_intra4x4_pred_mode_data = (UWORD8 *)ps_dec->pv_proc_tu_coeff_data; 879 if(u1_mb_type == I_4x4_MB && ps_cur_mb_info->u1_tran_form8x8 == 0) 880 { 881 ps_dec->pv_proc_tu_coeff_data = (void *)((UWORD8 *)ps_dec->pv_proc_tu_coeff_data + 32); 882 883 } 884 else if (u1_mb_type == I_4x4_MB && ps_cur_mb_info->u1_tran_form8x8 == 1) 885 { 886 ps_dec->pv_proc_tu_coeff_data = (void *)((UWORD8 *)ps_dec->pv_proc_tu_coeff_data + 8); 887 } 888 } 889 if(!ps_cur_mb_info->u1_tran_form8x8) 890 { 891 u4_luma_dc_only_csbp = ih264d_unpack_luma_coeff4x4_mb(ps_dec, 892 ps_cur_mb_info, 893 1); 894 } 895 else 896 { 897 if(!ps_dec->ps_cur_pps->u1_entropy_coding_mode) 898 { 899 u4_luma_dc_only_cbp = ih264d_unpack_luma_coeff4x4_mb(ps_dec, 900 ps_cur_mb_info, 901 1); 902 } 903 else 904 { 905 u4_luma_dc_only_cbp = ih264d_unpack_luma_coeff8x8_mb(ps_dec, 906 ps_cur_mb_info); 907 } 908 } 909 910 pi2_y_coeff = ps_dec->pi2_coeff_data; 911 912 if(u1_mb_type != I_4x4_MB) 913 { 914 UWORD8 u1_intrapred_mode = MB_TYPE_TO_INTRA_16x16_MODE(u1_mb_type); 915 /*--------------------------------------------------------------------*/ 916 /* 16x16 IntraPrediction */ 917 /*--------------------------------------------------------------------*/ 918 { 919 UWORD8 u1_packed_modes = (u1_top_available << 1) 920 + u1_left_available; 921 UWORD8 u1_err_code = 922 (u1_intrapred_mode & 1) ? 923 u1_intrapred_mode : 924 (u1_intrapred_mode ^ 2); 925 926 if((u1_err_code & u1_packed_modes) ^ u1_err_code) 927 { 928 u1_intrapred_mode = 0; 929 ps_dec->i4_error_code = ERROR_INTRAPRED; 930 } 931 } 932 { 933 UWORD8 au1_ngbr_pels[33]; 934 /* Get neighbour pixels */ 935 /* left pels */ 936 if(u2_use_left_mb) 937 { 938 WORD32 i; 939 for(i = 0; i < 16; i++) 940 au1_ngbr_pels[16 - 1 - i] = pu1_yleft[i * ui_rec_width]; 941 } 942 else 943 { 944 memset(au1_ngbr_pels, 0, 16); 945 } 946 947 /* top left pels */ 948 au1_ngbr_pels[16] = *pu1_ytop_left; 949 950 /* top pels */ 951 if(uc_useTopMB) 952 { 953 memcpy(au1_ngbr_pels + 16 + 1, puc_top, 16); 954 } 955 else 956 { 957 memset(au1_ngbr_pels + 16 + 1, 0, 16); 958 } 959 PROFILE_DISABLE_INTRA_PRED() 960 ps_dec->apf_intra_pred_luma_16x16[u1_intrapred_mode]( 961 au1_ngbr_pels, pu1_luma_rec_buffer, 1, ui_rec_width, 962 ((uc_useTopMB << 2) | u2_use_left_mb)); 963 } 964 { 965 UWORD32 i; 966 WORD16 ai2_tmp[16]; 967 for(i = 0; i < 16; i++) 968 { 969 WORD16 *pi2_level = pi2_y_coeff + (i << 4); 970 UWORD8 *pu1_pred_sblk = pu1_luma_rec_buffer 971 + ((i & 0x3) * BLK_SIZE) 972 + (i >> 2) * (ui_rec_width << 2); 973 PROFILE_DISABLE_IQ_IT_RECON() 974 { 975 if(CHECKBIT(ps_cur_mb_info->u2_luma_csbp, i)) 976 { 977 ps_dec->pf_iquant_itrans_recon_luma_4x4( 978 pi2_level, 979 pu1_pred_sblk, 980 pu1_pred_sblk, 981 ui_rec_width, 982 ui_rec_width, 983 gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qp_rem6], 984 (UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[0], 985 ps_cur_mb_info->u1_qp_div6, ai2_tmp, 1, 986 pi2_level); 987 } 988 else if((CHECKBIT(u4_luma_dc_only_csbp, i)) && pi2_level[0] != 0) 989 { 990 ps_dec->pf_iquant_itrans_recon_luma_4x4_dc( 991 pi2_level, 992 pu1_pred_sblk, 993 pu1_pred_sblk, 994 ui_rec_width, 995 ui_rec_width, 996 gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qp_rem6], 997 (UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[0], 998 ps_cur_mb_info->u1_qp_div6, ai2_tmp, 1, 999 pi2_level); 1000 } 1001 } 1002 } 1003 } 1004 } 1005 else if(!ps_cur_mb_info->u1_tran_form8x8) 1006 { 1007 UWORD8 u1_is_left_sub_block, u1_is_top_sub_block = uc_useTopMB; 1008 UWORD8 u1_sub_blk_x, u1_sub_blk_y, u1_sub_mb_num; 1009 WORD8 i1_top_pred_mode; 1010 WORD8 i1_left_pred_mode; 1011 UWORD8 *pu1_top, *pu1_left, *pu1_top_left, *pu1_top_right; 1012 WORD8 *pi1_cur_pred_mode, *pi1_left_pred_mode, *pc_topPredMode; 1013 UWORD16 ui2_left_pred_buf_width = 0xffff; 1014 WORD8 i1_intra_pred; 1015 UWORD8 *pu1_prev_intra4x4_pred_mode_flag = pu1_prev_intra4x4_pred_mode_data; 1016 UWORD8 *pu1_rem_intra4x4_pred_mode = pu1_prev_intra4x4_pred_mode_data + 16; 1017 WORD16 *pi2_y_coeff1; 1018 UWORD8 u1_cur_sub_block; 1019 UWORD16 ui2_top_rt_mask; 1020 1021 /*--------------------------------------------------------------------*/ 1022 /* 4x4 IntraPrediction */ 1023 /*--------------------------------------------------------------------*/ 1024 /* Calculation of Top Right subblock mask */ 1025 /* */ 1026 /* (a) Set it to default mask */ 1027 /* [It has 0 for sublocks which will never have top-right sub block] */ 1028 /* */ 1029 /* (b) If top MB is not available */ 1030 /* Clear the bits of the first row sub blocks */ 1031 /* */ 1032 /* (c) Set/Clear bit for top-right sublock of MB */ 1033 /* [5 sub-block in decoding order] based on TOP RIGHT MB availablity */ 1034 /*--------------------------------------------------------------------*/ 1035 1036 pu1_top = puc_top; 1037 1038 ui2_top_rt_mask = (u1_use_top_right_mb << 3) | (0x5750); 1039 if(uc_useTopMB) 1040 ui2_top_rt_mask |= 0x7; 1041 1042 /*Top Related initialisations*/ 1043 1044 1045 pi1_cur_pred_mode = ps_cur_mb_info->ps_curmb->pi1_intrapredmodes; 1046 pc_topPredMode = ps_cur_mb_info->ps_top_mb->pi1_intrapredmodes; 1047 /*-------------------------------------- 1048 if(u1_mbaff) 1049 { 1050 1051 pi1_cur_pred_mode += (u2_mbx << 2); 1052 pc_topPredMode = pi1_cur_pred_mode + ps_cur_mb_info->i1_offset; 1053 pi1_cur_pred_mode += (u1_topmb) ? 0: 4; 1054 }*/ 1055 1056 if(u1_top_available) 1057 { 1058 if(ps_top_mb->u1_mb_type == I_4x4_MB) 1059 *(WORD32*)pi1_cur_pred_mode = *(WORD32*)pc_topPredMode; 1060 else 1061 *(WORD32*)pi1_cur_pred_mode = 1062 (uc_useTopMB) ? DC_DC_DC_DC : NOT_VALID; 1063 } 1064 else 1065 *(WORD32*)pi1_cur_pred_mode = NOT_VALID; 1066 /* CHANGED CODE */ 1067 1068 /* CHANGED CODE */ 1069 1070 /*Left Related initialisations*/ 1071 pi1_left_pred_mode = ps_dec->pi1_left_pred_mode; 1072 if(!u1_mbaff) 1073 { 1074 1075 if(u1_left_available) 1076 { 1077 1078 if(ps_left_mb->u1_mb_type != I_4x4_MB) 1079 *(WORD32*)pi1_left_pred_mode = 1080 (u2_use_left_mb_pack) ? 1081 DC_DC_DC_DC : 1082 NOT_VALID; 1083 1084 } 1085 else 1086 { 1087 1088 *(WORD32*)pi1_left_pred_mode = NOT_VALID; 1089 } 1090 1091 } 1092 else 1093 { 1094 UWORD8 u1_curMbfld = ps_cur_mb_info->u1_mb_field_decodingflag; 1095 UWORD8 u1_leftMbfld = ps_left_mb->u1_mb_fld; 1096 1097 if(u1_curMbfld ^ u1_leftMbfld) 1098 { 1099 1100 if(u1_topmb 1101 | ((u1_topmb == 0) 1102 && ((ps_curmb - 1)->u1_mb_type 1103 != I_4x4_MB))) 1104 { 1105 if(u1_left_available) 1106 { 1107 if(ps_left_mb->u1_mb_type != I_4x4_MB) 1108 { 1109 if(CHECKBIT(u2_use_left_mb_pack,0) == 0) 1110 *(WORD32*)pi1_left_pred_mode = NOT_VALID; 1111 else 1112 *(WORD32*)pi1_left_pred_mode = DC_DC_DC_DC; 1113 } 1114 } 1115 else 1116 *(WORD32*)pi1_left_pred_mode = NOT_VALID; 1117 1118 if(u1_curMbfld) 1119 { 1120 if(u1_left_available) 1121 { 1122 if((ps_left_mb + 1)->u1_mb_type != I_4x4_MB) 1123 { 1124 if(u2_use_left_mb_pack >> 8) 1125 *(WORD32*)(pi1_left_pred_mode + 4) = 1126 DC_DC_DC_DC; 1127 else 1128 *(WORD32*)(pi1_left_pred_mode + 4) = 1129 NOT_VALID; 1130 } 1131 } 1132 else 1133 *(WORD32*)(pi1_left_pred_mode + 4) = NOT_VALID; 1134 pi1_left_pred_mode[1] = pi1_left_pred_mode[2]; 1135 pi1_left_pred_mode[2] = pi1_left_pred_mode[4]; 1136 pi1_left_pred_mode[3] = pi1_left_pred_mode[6]; 1137 *(WORD32*)(pi1_left_pred_mode + 4) = 1138 *(WORD32*)pi1_left_pred_mode; 1139 } 1140 else 1141 { 1142 1143 pi1_left_pred_mode[7] = pi1_left_pred_mode[3]; 1144 pi1_left_pred_mode[6] = pi1_left_pred_mode[3]; 1145 pi1_left_pred_mode[5] = pi1_left_pred_mode[2]; 1146 pi1_left_pred_mode[4] = pi1_left_pred_mode[2]; 1147 pi1_left_pred_mode[3] = pi1_left_pred_mode[1]; 1148 pi1_left_pred_mode[2] = pi1_left_pred_mode[1]; 1149 pi1_left_pred_mode[1] = pi1_left_pred_mode[0]; 1150 } 1151 } 1152 pi1_left_pred_mode += (u1_topmb) ? 0 : 4; 1153 } 1154 else 1155 { 1156 1157 pi1_left_pred_mode += (u1_topmb) ? 0 : 4; 1158 if(u1_left_available) 1159 { 1160 1161 if(ps_left_mb->u1_mb_type != I_4x4_MB) 1162 *(WORD32*)pi1_left_pred_mode = 1163 (u2_use_left_mb_pack) ? 1164 DC_DC_DC_DC : 1165 NOT_VALID; 1166 } 1167 else 1168 *(WORD32*)pi1_left_pred_mode = NOT_VALID; 1169 } 1170 } 1171 /* One time pointer initialisations*/ 1172 pi2_y_coeff1 = pi2_y_coeff; 1173 pu1_top_left = pu1_ytop_left; 1174 1175 /* Scan the sub-blocks in Raster Scan Order */ 1176 for(u1_sub_mb_num = 0; u1_sub_mb_num < 16; u1_sub_mb_num++) 1177 { 1178 UWORD8 au1_ngbr_pels[13]; 1179 1180 u1_sub_blk_x = u1_sub_mb_num & 0x3; 1181 u1_sub_blk_y = u1_sub_mb_num >> 2; 1182 i1_top_pred_mode = pi1_cur_pred_mode[u1_sub_blk_x]; 1183 i1_left_pred_mode = pi1_left_pred_mode[u1_sub_blk_y]; 1184 u1_use_top_right_mb = (!!CHECKBIT(ui2_top_rt_mask, u1_sub_mb_num)); 1185 1186 /*********** left subblock availability**********/ 1187 if(u1_sub_blk_x) 1188 u1_is_left_sub_block = 1; 1189 else 1190 u1_is_left_sub_block = 1191 (u1_sub_blk_y < 2) ? 1192 (CHECKBIT(u2_use_left_mb_pack, 1193 0)) : 1194 (u2_use_left_mb_pack >> 8); 1195 1196 /* CHANGED CODE */ 1197 if(u1_sub_blk_y) 1198 u1_is_top_sub_block = 1; 1199 1200 /* CHANGED CODE */ 1201 /***************** Top *********************/ 1202 if(ps_dec->u4_use_intrapred_line_copy == 1) 1203 { 1204 1205 if(u1_sub_blk_y) 1206 pu1_top = pu1_luma_rec_buffer - ui_rec_width; 1207 else 1208 pu1_top = puc_top + (u1_sub_blk_x << 2); 1209 } 1210 else 1211 { 1212 pu1_top = pu1_luma_rec_buffer - ui_rec_width; 1213 } 1214 /***************** Top Right *********************/ 1215 pu1_top_right = pu1_top + 4; 1216 /***************** Top Left *********************/ 1217 pu1_top_left = pu1_top - 1; 1218 /***************** Left *********************/ 1219 pu1_left = pu1_luma_rec_buffer - 1; 1220 /* CHANGED CODE */ 1221 1222 /*---------------------------------------------------------------*/ 1223 /* Calculation of Intra prediction mode */ 1224 /*---------------------------------------------------------------*/ 1225 i1_intra_pred = ((i1_left_pred_mode < 0) | (i1_top_pred_mode < 0)) ? 1226 DC : MIN(i1_left_pred_mode, i1_top_pred_mode); 1227 { 1228 UWORD8 u1_packed_modes = (u1_is_top_sub_block << 1) 1229 + u1_is_left_sub_block; 1230 UWORD8 *pu1_intra_err_codes = 1231 (UWORD8 *)gau1_ih264d_intra_pred_err_code; 1232 UWORD8 uc_b2b0 = ((u1_sub_mb_num & 4) >> 1) | (u1_sub_mb_num & 1); 1233 UWORD8 uc_b3b1 = ((u1_sub_mb_num & 8) >> 2) 1234 | ((u1_sub_mb_num & 2) >> 1); 1235 1236 u1_cur_sub_block = (uc_b3b1 << 2) + uc_b2b0; 1237 PROFILE_DISABLE_INTRA_PRED() 1238 if(!pu1_prev_intra4x4_pred_mode_flag[u1_cur_sub_block]) 1239 { 1240 i1_intra_pred = 1241 pu1_rem_intra4x4_pred_mode[u1_cur_sub_block] 1242 + (pu1_rem_intra4x4_pred_mode[u1_cur_sub_block] 1243 >= i1_intra_pred); 1244 } 1245 { 1246 UWORD8 u1_err_code = pu1_intra_err_codes[i1_intra_pred]; 1247 1248 if((u1_err_code & u1_packed_modes) ^ u1_err_code) 1249 { 1250 i1_intra_pred = 0; 1251 ps_dec->i4_error_code = ERROR_INTRAPRED; 1252 } 1253 1254 } 1255 } 1256 { 1257 /* Get neighbour pixels */ 1258 /* left pels */ 1259 if(u1_is_left_sub_block) 1260 { 1261 WORD32 i; 1262 for(i = 0; i < 4; i++) 1263 au1_ngbr_pels[4 - 1 - i] = pu1_left[i * ui_rec_width]; 1264 } 1265 else 1266 { 1267 memset(au1_ngbr_pels, 0, 4); 1268 } 1269 1270 /* top left pels */ 1271 au1_ngbr_pels[4] = *pu1_top_left; 1272 1273 /* top pels */ 1274 if(u1_is_top_sub_block) 1275 { 1276 memcpy(au1_ngbr_pels + 4 + 1, pu1_top, 4); 1277 } 1278 else 1279 { 1280 memset(au1_ngbr_pels + 4 + 1, 0, 4); 1281 } 1282 1283 /* top right pels */ 1284 if(u1_use_top_right_mb) 1285 { 1286 memcpy(au1_ngbr_pels + 4 * 2 + 1, pu1_top_right, 4); 1287 } 1288 else if(u1_is_top_sub_block) 1289 { 1290 memset(au1_ngbr_pels + 4 * 2 + 1, au1_ngbr_pels[4 * 2], 4); 1291 } 1292 } 1293 PROFILE_DISABLE_INTRA_PRED() 1294 ps_dec->apf_intra_pred_luma_4x4[i1_intra_pred]( 1295 au1_ngbr_pels, pu1_luma_rec_buffer, 1, 1296 ui_rec_width, 1297 ((u1_is_top_sub_block << 2) | u1_is_left_sub_block)); 1298 1299 /* CHANGED CODE */ 1300 if(CHECKBIT(ui2_luma_csbp, u1_sub_mb_num)) 1301 { 1302 WORD16 ai2_tmp[16]; 1303 PROFILE_DISABLE_IQ_IT_RECON() 1304 { 1305 if(CHECKBIT(u4_luma_dc_only_csbp, u1_sub_mb_num)) 1306 { 1307 ps_dec->pf_iquant_itrans_recon_luma_4x4_dc( 1308 pi2_y_coeff1, 1309 pu1_luma_rec_buffer, 1310 pu1_luma_rec_buffer, 1311 ui_rec_width, 1312 ui_rec_width, 1313 gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qp_rem6], 1314 (UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[0], 1315 ps_cur_mb_info->u1_qp_div6, ai2_tmp, 0, 1316 NULL); 1317 } 1318 else 1319 { 1320 ps_dec->pf_iquant_itrans_recon_luma_4x4( 1321 pi2_y_coeff1, 1322 pu1_luma_rec_buffer, 1323 pu1_luma_rec_buffer, 1324 ui_rec_width, 1325 ui_rec_width, 1326 gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qp_rem6], 1327 (UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[0], 1328 ps_cur_mb_info->u1_qp_div6, ai2_tmp, 0, 1329 NULL); 1330 } 1331 } 1332 1333 } 1334 1335 /*---------------------------------------------------------------*/ 1336 /* Update sub block number */ 1337 /*---------------------------------------------------------------*/ 1338 pi2_y_coeff1 += 16; 1339 pu1_luma_rec_buffer += 1340 (u1_sub_blk_x == 3) ? (ui_rec_width << 2) - 12 : 4; 1341 pu1_luma_pred_buffer += 1342 (u1_sub_blk_x == 3) ? (ui_pred_width << 2) - 12 : 4; 1343 /* CHANGED CODE */ 1344 pi1_cur_pred_mode[u1_sub_blk_x] = i1_intra_pred; 1345 pi1_left_pred_mode[u1_sub_blk_y] = i1_intra_pred; 1346 } 1347 } 1348 else if((u1_mb_type == I_4x4_MB) && (ps_cur_mb_info->u1_tran_form8x8 == 1)) 1349 { 1350 UWORD8 u1_is_left_sub_block, u1_is_top_sub_block = uc_useTopMB; 1351 UWORD8 u1_sub_blk_x, u1_sub_blk_y, u1_sub_mb_num; 1352 WORD8 i1_top_pred_mode; 1353 WORD8 i1_left_pred_mode; 1354 UWORD8 *pu1_top, *pu1_left, *pu1_top_left; 1355 WORD8 *pi1_cur_pred_mode, *pi1_left_pred_mode, *pc_topPredMode; 1356 UWORD16 ui2_left_pred_buf_width = 0xffff; 1357 WORD8 i1_intra_pred; 1358 UWORD8 *pu1_prev_intra4x4_pred_mode_flag = pu1_prev_intra4x4_pred_mode_data; 1359 UWORD8 *pu1_rem_intra4x4_pred_mode = pu1_prev_intra4x4_pred_mode_data + 4; 1360 WORD16 *pi2_y_coeff1; 1361 UWORD16 ui2_top_rt_mask; 1362 UWORD32 u4_4x4_left_offset = 0; 1363 1364 /*--------------------------------------------------------------------*/ 1365 /* 8x8 IntraPrediction */ 1366 /*--------------------------------------------------------------------*/ 1367 /* Calculation of Top Right subblock mask */ 1368 /* */ 1369 /* (a) Set it to default mask */ 1370 /* [It has 0 for sublocks which will never have top-right sub block] */ 1371 /* */ 1372 /* (b) If top MB is not available */ 1373 /* Clear the bits of the first row sub blocks */ 1374 /* */ 1375 /* (c) Set/Clear bit for top-right sublock of MB */ 1376 /* [5 sub-block in decoding order] based on TOP RIGHT MB availablity */ 1377 /* */ 1378 /* ui2_top_rt_mask: marks availibility of top right(neighbour) */ 1379 /* in the 8x8 Block ordering */ 1380 /* */ 1381 /* tr0 tr1 */ 1382 /* 0 1 tr3 */ 1383 /* 2 3 */ 1384 /* */ 1385 /* Top rights for 0 is in top MB */ 1386 /* top right of 1 will be in top right MB */ 1387 /* top right of 3 in right MB and hence not available */ 1388 /* This corresponds to ui2_top_rt_mask having default value 0x4 */ 1389 /*--------------------------------------------------------------------*/ 1390 1391 ui2_top_rt_mask = (u1_use_top_right_mb << 1) | (0x4); 1392 1393 if(uc_useTopMB) 1394 { 1395 ui2_top_rt_mask |= 0x1; 1396 } 1397 1398 /* Top Related initialisations */ 1399 pi1_cur_pred_mode = ps_cur_mb_info->ps_curmb->pi1_intrapredmodes; 1400 pc_topPredMode = ps_cur_mb_info->ps_top_mb->pi1_intrapredmodes; 1401 /* 1402 if(u1_mbaff) 1403 { 1404 pi1_cur_pred_mode += (u2_mbx << 2); 1405 pc_topPredMode = pi1_cur_pred_mode + ps_cur_mb_info->i1_offset; 1406 pi1_cur_pred_mode += (u1_topmb) ? 0: 4; 1407 } 1408 */ 1409 if(u1_top_available) 1410 { 1411 if(ps_top_mb->u1_mb_type == I_4x4_MB) 1412 { 1413 *(WORD32*)pi1_cur_pred_mode = *(WORD32*)pc_topPredMode; 1414 } 1415 else 1416 { 1417 *(WORD32*)pi1_cur_pred_mode = 1418 (uc_useTopMB) ? DC_DC_DC_DC : NOT_VALID; 1419 } 1420 } 1421 else 1422 { 1423 *(WORD32*)pi1_cur_pred_mode = NOT_VALID; 1424 } 1425 1426 pu1_top = puc_top - 8; 1427 1428 /*Left Related initialisations*/ 1429 pi1_left_pred_mode = ps_dec->pi1_left_pred_mode; 1430 1431 if(!u1_mbaff) 1432 { 1433 if(u1_left_available) 1434 { 1435 if(ps_left_mb->u1_mb_type != I_4x4_MB) 1436 { 1437 *(WORD32*)pi1_left_pred_mode = 1438 (u2_use_left_mb_pack) ? 1439 DC_DC_DC_DC : 1440 NOT_VALID; 1441 } 1442 } 1443 else 1444 { 1445 *(WORD32*)pi1_left_pred_mode = NOT_VALID; 1446 } 1447 } 1448 else 1449 { 1450 UWORD8 u1_curMbfld = ps_cur_mb_info->u1_mb_field_decodingflag; 1451 1452 UWORD8 u1_leftMbfld = ps_left_mb->u1_mb_fld; 1453 1454 if((!u1_curMbfld) && (u1_leftMbfld)) 1455 { 1456 u4_4x4_left_offset = 1; 1457 } 1458 1459 if(u1_curMbfld ^ u1_leftMbfld) 1460 { 1461 1462 if(u1_topmb 1463 | ((u1_topmb == 0) 1464 && ((ps_curmb - 1)->u1_mb_type 1465 != I_4x4_MB))) 1466 1467 { 1468 if(u1_left_available) 1469 { 1470 if(ps_left_mb->u1_mb_type != I_4x4_MB) 1471 { 1472 if(CHECKBIT(u2_use_left_mb_pack,0) == 0) 1473 { 1474 *(WORD32*)pi1_left_pred_mode = NOT_VALID; 1475 } 1476 else 1477 { 1478 *(WORD32*)pi1_left_pred_mode = DC_DC_DC_DC; 1479 } 1480 } 1481 } 1482 else 1483 { 1484 *(WORD32*)pi1_left_pred_mode = NOT_VALID; 1485 } 1486 1487 if(u1_curMbfld) 1488 { 1489 if(u1_left_available) 1490 { 1491 if((ps_left_mb + 1)->u1_mb_type != I_4x4_MB) 1492 { 1493 if(u2_use_left_mb_pack >> 8) 1494 { 1495 *(WORD32*)(pi1_left_pred_mode + 4) = 1496 DC_DC_DC_DC; 1497 } 1498 else 1499 { 1500 *(WORD32*)(pi1_left_pred_mode + 4) = 1501 NOT_VALID; 1502 } 1503 } 1504 } 1505 else 1506 { 1507 *(WORD32*)(pi1_left_pred_mode + 4) = NOT_VALID; 1508 } 1509 1510 pi1_left_pred_mode[1] = pi1_left_pred_mode[2]; 1511 pi1_left_pred_mode[2] = pi1_left_pred_mode[4]; 1512 pi1_left_pred_mode[3] = pi1_left_pred_mode[6]; 1513 *(WORD32*)(pi1_left_pred_mode + 4) = 1514 *(WORD32*)pi1_left_pred_mode; 1515 } 1516 else 1517 { 1518 pi1_left_pred_mode[7] = pi1_left_pred_mode[3]; 1519 pi1_left_pred_mode[6] = pi1_left_pred_mode[3]; 1520 pi1_left_pred_mode[5] = pi1_left_pred_mode[2]; 1521 pi1_left_pred_mode[4] = pi1_left_pred_mode[2]; 1522 pi1_left_pred_mode[3] = pi1_left_pred_mode[1]; 1523 pi1_left_pred_mode[2] = pi1_left_pred_mode[1]; 1524 pi1_left_pred_mode[1] = pi1_left_pred_mode[0]; 1525 } 1526 } 1527 pi1_left_pred_mode += (u1_topmb) ? 0 : 4; 1528 } 1529 else 1530 { 1531 pi1_left_pred_mode += (u1_topmb) ? 0 : 4; 1532 1533 if(u1_left_available) 1534 { 1535 if(ps_left_mb->u1_mb_type != I_4x4_MB) 1536 { 1537 *(WORD32*)pi1_left_pred_mode = 1538 (u2_use_left_mb_pack) ? 1539 DC_DC_DC_DC : 1540 NOT_VALID; 1541 } 1542 } 1543 else 1544 { 1545 *(WORD32*)pi1_left_pred_mode = NOT_VALID; 1546 } 1547 } 1548 } 1549 1550 /* One time pointer initialisations*/ 1551 pi2_y_coeff1 = pi2_y_coeff; 1552 1553 if(u1_use_top_left_mb) 1554 { 1555 pu1_top_left = pu1_ytop_left; 1556 } 1557 else 1558 { 1559 pu1_top_left = NULL; 1560 } 1561 1562 /* Scan the sub-blocks in Raster Scan Order */ 1563 for(u1_sub_mb_num = 0; u1_sub_mb_num < 4; u1_sub_mb_num++) 1564 { 1565 u1_sub_blk_x = (u1_sub_mb_num & 0x1); 1566 u1_sub_blk_y = (u1_sub_mb_num >> 1); 1567 i1_top_pred_mode = pi1_cur_pred_mode[u1_sub_blk_x << 1]; 1568 i1_left_pred_mode = pi1_left_pred_mode[u1_sub_blk_y << 1]; 1569 1570 if(2 == u1_sub_mb_num) 1571 { 1572 i1_left_pred_mode = pi1_left_pred_mode[(u1_sub_blk_y << 1) 1573 + u4_4x4_left_offset]; 1574 } 1575 1576 u1_use_top_right_mb = (!!CHECKBIT(ui2_top_rt_mask, u1_sub_mb_num)); 1577 1578 /*********** left subblock availability**********/ 1579 if(u1_sub_blk_x) 1580 { 1581 u1_is_left_sub_block = 1; 1582 } 1583 else 1584 { 1585 u1_is_left_sub_block = 1586 (u1_sub_blk_y < 1) ? 1587 (CHECKBIT(u2_use_left_mb_pack, 1588 0)) : 1589 (u2_use_left_mb_pack >> 8); 1590 } 1591 1592 /***************** Top *********************/ 1593 if(u1_sub_blk_y) 1594 { 1595 u1_is_top_sub_block = 1; 1596 // sushant 1597 pu1_top = /*pu1_luma_pred_buffer*/pu1_luma_rec_buffer - ui_rec_width; 1598 } 1599 else 1600 { 1601 pu1_top += 8; 1602 } 1603 1604 /***************** Left *********************/ 1605 if((u1_sub_blk_x) | (u4_num_pmbair != 0)) 1606 { 1607 // sushant 1608 pu1_left = /*pu1_luma_pred_buffer*/pu1_luma_rec_buffer - 1; 1609 ui2_left_pred_buf_width = ui_rec_width; 1610 } 1611 else 1612 { 1613 pu1_left = pu1_yleft; 1614 pu1_yleft += (ui_rec_width << 3); 1615 ui2_left_pred_buf_width = ui_rec_width; 1616 } 1617 1618 /***************** Top Left *********************/ 1619 if(u1_sub_mb_num) 1620 { 1621 pu1_top_left = (u1_sub_blk_x) ? 1622 pu1_top - 1 : pu1_left - ui_rec_width; 1623 1624 if((u1_sub_blk_x && (!u1_is_top_sub_block)) 1625 || ((!u1_sub_blk_x) && (!u1_is_left_sub_block))) 1626 { 1627 pu1_top_left = NULL; 1628 } 1629 } 1630 1631 /*---------------------------------------------------------------*/ 1632 /* Calculation of Intra prediction mode */ 1633 /*---------------------------------------------------------------*/ 1634 i1_intra_pred = ((i1_left_pred_mode < 0) | (i1_top_pred_mode < 0)) ? 1635 DC : MIN(i1_left_pred_mode, i1_top_pred_mode); 1636 { 1637 UWORD8 u1_packed_modes = (u1_is_top_sub_block << 1) 1638 + u1_is_left_sub_block; 1639 UWORD8 *pu1_intra_err_codes = 1640 (UWORD8 *)gau1_ih264d_intra_pred_err_code; 1641 1642 /********************************************************************/ 1643 /* Same intra4x4_pred_mode array is filled with intra4x4_pred_mode */ 1644 /* for a MB with 8x8 intrapredicition */ 1645 /********************************************************************/ 1646 PROFILE_DISABLE_INTRA_PRED() 1647 if(!pu1_prev_intra4x4_pred_mode_flag[u1_sub_mb_num]) 1648 { 1649 i1_intra_pred = pu1_rem_intra4x4_pred_mode[u1_sub_mb_num] 1650 + (pu1_rem_intra4x4_pred_mode[u1_sub_mb_num] 1651 >= i1_intra_pred); 1652 } 1653 { 1654 UWORD8 u1_err_code = pu1_intra_err_codes[i1_intra_pred]; 1655 1656 if((u1_err_code & u1_packed_modes) ^ u1_err_code) 1657 { 1658 i1_intra_pred = 0; 1659 ps_dec->i4_error_code = ERROR_INTRAPRED; 1660 } 1661 } 1662 } 1663 1664 { 1665 UWORD8 au1_ngbr_pels[25]; 1666 WORD32 ngbr_avail; 1667 ngbr_avail = u1_is_left_sub_block << 0; 1668 ngbr_avail |= u1_is_top_sub_block << 2; 1669 1670 if(pu1_top_left) 1671 ngbr_avail |= 1 << 1; 1672 1673 ngbr_avail |= u1_use_top_right_mb << 3; 1674 PROFILE_DISABLE_INTRA_PRED() 1675 { 1676 ps_dec->pf_intra_pred_ref_filtering(pu1_left, pu1_top_left, 1677 pu1_top, au1_ngbr_pels, 1678 ui2_left_pred_buf_width, 1679 ngbr_avail); 1680 1681 ps_dec->apf_intra_pred_luma_8x8[i1_intra_pred]( 1682 au1_ngbr_pels, pu1_luma_rec_buffer, 1, 1683 ui_rec_width, 1684 ((u1_is_top_sub_block << 2) | u1_is_left_sub_block)); 1685 } 1686 } 1687 1688 /* Inverse Transform and Reconstruction */ 1689 if(CHECKBIT(ps_cur_mb_info->u1_cbp, u1_sub_mb_num)) 1690 { 1691 WORD16 *pi2_scale_matrix_ptr; 1692 WORD16 ai2_tmp[64]; 1693 1694 pi2_scale_matrix_ptr = 1695 ps_dec->s_high_profile.i2_scalinglist8x8[0]; 1696 PROFILE_DISABLE_IQ_IT_RECON() 1697 { 1698 if(CHECKBIT(u4_luma_dc_only_cbp, u1_sub_mb_num)) 1699 { 1700 ps_dec->pf_iquant_itrans_recon_luma_8x8_dc( 1701 pi2_y_coeff1, 1702 pu1_luma_rec_buffer, 1703 pu1_luma_rec_buffer, 1704 ui_rec_width, 1705 ui_rec_width, 1706 gau1_ih264d_dequant8x8_cavlc[ps_cur_mb_info->u1_qp_rem6], 1707 (UWORD16 *)pi2_scale_matrix_ptr, 1708 ps_cur_mb_info->u1_qp_div6, ai2_tmp, 0, 1709 NULL); 1710 } 1711 else 1712 { 1713 ps_dec->pf_iquant_itrans_recon_luma_8x8( 1714 pi2_y_coeff1, 1715 pu1_luma_rec_buffer, 1716 pu1_luma_rec_buffer, 1717 ui_rec_width, 1718 ui_rec_width, 1719 gau1_ih264d_dequant8x8_cavlc[ps_cur_mb_info->u1_qp_rem6], 1720 (UWORD16 *)pi2_scale_matrix_ptr, 1721 ps_cur_mb_info->u1_qp_div6, ai2_tmp, 0, 1722 NULL); 1723 } 1724 } 1725 1726 } 1727 1728 /*---------------------------------------------------------------*/ 1729 /* Update sub block number */ 1730 /*---------------------------------------------------------------*/ 1731 pi2_y_coeff1 += 64; 1732 1733 pu1_luma_rec_buffer += 1734 (u1_sub_blk_x == 1) ? 1735 (ui_rec_width << 3) - (8 * 1) : 8; 1736 1737 /*---------------------------------------------------------------*/ 1738 /* Pred mode filled in terms of 4x4 block so replicated in 2 */ 1739 /* locations. */ 1740 /*---------------------------------------------------------------*/ 1741 pi1_cur_pred_mode[u1_sub_blk_x << 1] = i1_intra_pred; 1742 pi1_cur_pred_mode[(u1_sub_blk_x << 1) + 1] = i1_intra_pred; 1743 pi1_left_pred_mode[u1_sub_blk_y << 1] = i1_intra_pred; 1744 pi1_left_pred_mode[(u1_sub_blk_y << 1) + 1] = i1_intra_pred; 1745 } 1746 } 1747 /* Decode Chroma Block */ 1748 ih264d_unpack_chroma_coeff4x4_mb(ps_dec, 1749 ps_cur_mb_info); 1750 /*--------------------------------------------------------------------*/ 1751 /* Chroma Blocks decoding */ 1752 /*--------------------------------------------------------------------*/ 1753 { 1754 UWORD8 u1_intra_chrom_pred_mode; 1755 UWORD8 u1_chroma_cbp = (UWORD8)(ps_cur_mb_info->u1_cbp >> 4); 1756 1757 /*--------------------------------------------------------------------*/ 1758 /* Perform Chroma intra prediction */ 1759 /*--------------------------------------------------------------------*/ 1760 1761 u1_intra_chrom_pred_mode = CHROMA_TO_LUMA_INTRA_MODE( 1762 ps_cur_mb_info->u1_chroma_pred_mode); 1763 1764 { 1765 UWORD8 u1_packed_modes = (u1_top_available << 1) 1766 + u1_left_available; 1767 UWORD8 u1_err_code = 1768 (u1_intra_chrom_pred_mode & 1) ? 1769 u1_intra_chrom_pred_mode : 1770 (u1_intra_chrom_pred_mode ^ 2); 1771 if((u1_err_code & u1_packed_modes) ^ u1_err_code) 1772 { 1773 u1_intra_chrom_pred_mode = 0; 1774 ps_dec->i4_error_code = ERROR_INTRAPRED; 1775 } 1776 } 1777 1778 /* CHANGED CODE */ 1779 if(u1_chroma_cbp != CBPC_ALLZERO) 1780 { 1781 UWORD16 u2_chroma_csbp = 1782 (u1_chroma_cbp == CBPC_ACZERO) ? 1783 0 : ps_cur_mb_info->u2_chroma_csbp; 1784 UWORD32 u4_scale_u; 1785 UWORD32 u4_scale_v; 1786 1787 { 1788 UWORD16 au2_ngbr_pels[33]; 1789 UWORD8 *pu1_ngbr_pels = (UWORD8 *)au2_ngbr_pels; 1790 UWORD16 *pu2_left_uv; 1791 UWORD16 *pu2_topleft_uv; 1792 WORD32 use_left1 = (u2_use_left_mb_pack & 0x0ff); 1793 WORD32 use_left2 = (u2_use_left_mb_pack & 0xff00) >> 8; 1794 1795 pu2_left_uv = (UWORD16 *)pu1_uleft; 1796 pu2_topleft_uv = (UWORD16 *)pu1_u_top_left; 1797 /* Get neighbour pixels */ 1798 /* left pels */ 1799 if(u2_use_left_mb_pack) 1800 { 1801 WORD32 i; 1802 if(use_left1) 1803 { 1804 for(i = 0; i < 4; i++) 1805 au2_ngbr_pels[8 - 1 - i] = pu2_left_uv[i 1806 * u4_recwidth_cr / YUV420SP_FACTOR]; 1807 } 1808 else 1809 { 1810 memset(au2_ngbr_pels + 4, 0, 4 * sizeof(UWORD16)); 1811 } 1812 1813 if(use_left2) 1814 { 1815 for(i = 4; i < 8; i++) 1816 au2_ngbr_pels[8 - 1 - i] = pu2_left_uv[i 1817 * u4_recwidth_cr / YUV420SP_FACTOR]; 1818 } 1819 else 1820 { 1821 memset(au2_ngbr_pels, 0, 4 * sizeof(UWORD16)); 1822 } 1823 } 1824 else 1825 { 1826 memset(au2_ngbr_pels, 0, 8 * sizeof(UWORD16)); 1827 } 1828 1829 /* top left pels */ 1830 au2_ngbr_pels[8] = *pu2_topleft_uv; 1831 1832 /* top pels */ 1833 if(uc_useTopMB) 1834 { 1835 memcpy(au2_ngbr_pels + 8 + 1, pu1_top_u, 1836 8 * sizeof(UWORD16)); 1837 } 1838 else 1839 { 1840 memset(au2_ngbr_pels + 8 + 1, 0, 8 * sizeof(UWORD16)); 1841 } 1842 1843 PROFILE_DISABLE_INTRA_PRED() 1844 ps_dec->apf_intra_pred_chroma[u1_intra_chrom_pred_mode]( 1845 pu1_ngbr_pels, 1846 pu1_mb_cb_rei1_buffer, 1847 1, 1848 u4_recwidth_cr, 1849 ((uc_useTopMB << 2) | (use_left2 << 4) 1850 | use_left1)); 1851 } 1852 u4_scale_u = ps_cur_mb_info->u1_qpc_div6; 1853 u4_scale_v = ps_cur_mb_info->u1_qpcr_div6; 1854 pi2_y_coeff = ps_dec->pi2_coeff_data; 1855 1856 { 1857 UWORD32 i; 1858 WORD16 ai2_tmp[16]; 1859 for(i = 0; i < 4; i++) 1860 { 1861 WORD16 *pi2_level = pi2_y_coeff + (i << 4); 1862 UWORD8 *pu1_pred_sblk = pu1_mb_cb_rei1_buffer 1863 + ((i & 0x1) * BLK_SIZE * YUV420SP_FACTOR) 1864 + (i >> 1) * (u4_recwidth_cr << 2); 1865 PROFILE_DISABLE_IQ_IT_RECON() 1866 { 1867 if(CHECKBIT(u2_chroma_csbp, i)) 1868 { 1869 ps_dec->pf_iquant_itrans_recon_chroma_4x4( 1870 pi2_level, 1871 pu1_pred_sblk, 1872 pu1_pred_sblk, 1873 u4_recwidth_cr, 1874 u4_recwidth_cr, 1875 gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qpc_rem6], 1876 (UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[1], 1877 u4_scale_u, ai2_tmp, pi2_level); 1878 } 1879 else if(pi2_level[0] != 0) 1880 { 1881 ps_dec->pf_iquant_itrans_recon_chroma_4x4_dc( 1882 pi2_level, 1883 pu1_pred_sblk, 1884 pu1_pred_sblk, 1885 u4_recwidth_cr, 1886 u4_recwidth_cr, 1887 gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qpc_rem6], 1888 (UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[1], 1889 u4_scale_u, ai2_tmp, pi2_level); 1890 } 1891 } 1892 1893 } 1894 } 1895 1896 pi2_y_coeff += MB_CHROM_SIZE; 1897 u2_chroma_csbp = u2_chroma_csbp >> 4; 1898 { 1899 UWORD32 i; 1900 WORD16 ai2_tmp[16]; 1901 for(i = 0; i < 4; i++) 1902 { 1903 WORD16 *pi2_level = pi2_y_coeff + (i << 4); 1904 UWORD8 *pu1_pred_sblk = pu1_mb_cb_rei1_buffer + 1 1905 + ((i & 0x1) * BLK_SIZE * YUV420SP_FACTOR) 1906 + (i >> 1) * (u4_recwidth_cr << 2); 1907 PROFILE_DISABLE_IQ_IT_RECON() 1908 { 1909 if(CHECKBIT(u2_chroma_csbp, i)) 1910 { 1911 ps_dec->pf_iquant_itrans_recon_chroma_4x4( 1912 pi2_level, 1913 pu1_pred_sblk, 1914 pu1_pred_sblk, 1915 u4_recwidth_cr, 1916 u4_recwidth_cr, 1917 gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qpcr_rem6], 1918 (UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[2], 1919 u4_scale_v, ai2_tmp, pi2_level); 1920 } 1921 else if(pi2_level[0] != 0) 1922 { 1923 ps_dec->pf_iquant_itrans_recon_chroma_4x4_dc( 1924 pi2_level, 1925 pu1_pred_sblk, 1926 pu1_pred_sblk, 1927 u4_recwidth_cr, 1928 u4_recwidth_cr, 1929 gau2_ih264_iquant_scale_4x4[ps_cur_mb_info->u1_qpcr_rem6], 1930 (UWORD16 *)ps_dec->s_high_profile.i2_scalinglist4x4[2], 1931 u4_scale_v, ai2_tmp, pi2_level); 1932 } 1933 } 1934 } 1935 } 1936 1937 } 1938 else 1939 { 1940 /* If no inverse transform is needed, pass recon buffer pointer */ 1941 /* to Intraprediction module instead of pred buffer pointer */ 1942 { 1943 UWORD16 au2_ngbr_pels[33]; 1944 UWORD8 *pu1_ngbr_pels = (UWORD8 *)au2_ngbr_pels; 1945 UWORD16 *pu2_left_uv; 1946 UWORD16 *pu2_topleft_uv; 1947 WORD32 use_left1 = (u2_use_left_mb_pack & 0x0ff); 1948 WORD32 use_left2 = (u2_use_left_mb_pack & 0xff00) >> 8; 1949 1950 pu2_topleft_uv = (UWORD16 *)pu1_u_top_left; 1951 pu2_left_uv = (UWORD16 *)pu1_uleft; 1952 1953 /* Get neighbour pixels */ 1954 /* left pels */ 1955 if(u2_use_left_mb_pack) 1956 { 1957 WORD32 i; 1958 if(use_left1) 1959 { 1960 for(i = 0; i < 4; i++) 1961 au2_ngbr_pels[8 - 1 - i] = pu2_left_uv[i 1962 * u4_recwidth_cr / YUV420SP_FACTOR]; 1963 } 1964 else 1965 { 1966 memset(au2_ngbr_pels + 4, 0, 4 * sizeof(UWORD16)); 1967 } 1968 1969 if(use_left2) 1970 { 1971 for(i = 4; i < 8; i++) 1972 au2_ngbr_pels[8 - 1 - i] = pu2_left_uv[i 1973 * u4_recwidth_cr / YUV420SP_FACTOR]; 1974 } 1975 else 1976 { 1977 memset(au2_ngbr_pels, 0, 4 * sizeof(UWORD16)); 1978 } 1979 1980 } 1981 else 1982 { 1983 memset(au2_ngbr_pels, 0, 8 * sizeof(UWORD16)); 1984 } 1985 1986 /* top left pels */ 1987 au2_ngbr_pels[8] = *pu2_topleft_uv; 1988 1989 /* top pels */ 1990 if(uc_useTopMB) 1991 { 1992 memcpy(au2_ngbr_pels + 8 + 1, pu1_top_u, 1993 8 * sizeof(UWORD16)); 1994 } 1995 else 1996 { 1997 memset(au2_ngbr_pels + 8 + 1, 0, 8 * sizeof(UWORD16)); 1998 } 1999 2000 PROFILE_DISABLE_INTRA_PRED() 2001 ps_dec->apf_intra_pred_chroma[u1_intra_chrom_pred_mode]( 2002 pu1_ngbr_pels, 2003 pu1_mb_cb_rei1_buffer, 2004 1, 2005 u4_recwidth_cr, 2006 ((uc_useTopMB << 2) | (use_left2 << 4) 2007 | use_left1)); 2008 } 2009 2010 } 2011 2012 } 2013 return OK; 2014 } 2015
