1/****************************************************************************** 2* 3* Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore 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/** 19******************************************************************************* 20* @file 21* ihevc_defs.h 22* 23* @brief 24* Definitions used in the codec 25* 26* @author 27* Ittiam 28* 29* 30* @remarks 31* None 32* 33******************************************************************************* 34*/ 35#ifndef _IHEVC_DEFS_H_ 36#define _IHEVC_DEFS_H_ 37 38/*****************************************************************************/ 39/* Profile and Levels */ 40/*****************************************************************************/ 41enum 42{ 43 IHEVC_PROFILE_MAIN = 0, 44}; 45 46enum 47{ 48 IHEVC_TIER_MAIN, 49 IHEVC_TIER_HIGH, 50}; 51 52 53/* Slice type enums - Do not change the values */ 54 55enum 56{ 57 BSLICE = 0, 58 PSLICE = 1, 59 ISLICE = 2, 60}; 61 62/** Enum for Level : Multiplication by 30 as per spec is implemented as multiplied by 10 and then by 3 63 * User will give level multiplied by 10 in the API 64 */ 65enum 66{ 67 IHEVC_LEVEL_10 = 10 * 3, 68 IHEVC_LEVEL_20 = 20 * 3, 69 IHEVC_LEVEL_21 = 21 * 3, 70 IHEVC_LEVEL_30 = 30 * 3, 71 IHEVC_LEVEL_31 = 31 * 3, 72 IHEVC_LEVEL_40 = 40 * 3, 73 IHEVC_LEVEL_41 = 41 * 3, 74 IHEVC_LEVEL_50 = 50 * 3, 75 IHEVC_LEVEL_51 = 51 * 3, 76 IHEVC_LEVEL_52 = 52 * 3, 77 IHEVC_LEVEL_60 = 60 * 3, 78 IHEVC_LEVEL_61 = 61 * 3, 79 IHEVC_LEVEL_62 = 62 * 3, 80}; 81 82 83enum 84{ 85 NAL_TRAIL_N = 0, 86 NAL_TRAIL_R, 87 NAL_TSA_N, 88 NAL_TSA_R, 89 NAL_STSA_N, 90 NAL_STSA_R, 91 NAL_RADL_N, 92 NAL_RADL_R, 93 NAL_RASL_N, 94 NAL_RASL_R, 95 NAL_RSV_VCL_N10 = 10, 96 NAL_RSV_VCL_N12 = 12, 97 NAL_RSV_VCL_N14 = 14, 98 NAL_RSV_VCL_R11 = 11, 99 NAL_RSV_VCL_R13 = 13, 100 NAL_RSV_VCL_R15 = 15, 101 102 NAL_BLA_W_LP = 16, 103 NAL_BLA_W_DLP, 104 NAL_BLA_N_LP, 105 NAL_IDR_W_LP, 106 NAL_IDR_N_LP, 107 NAL_CRA, 108 NAL_RSV_RAP_VCL22 = 22, 109 NAL_RSV_RAP_VCL23 = 23, 110 NAL_RSV_VCL24 = 24, 111 NAL_RSV_VCL31 = 31, 112 NAL_VPS = 32, 113 NAL_SPS, 114 NAL_PPS, 115 NAL_AUD, 116 NAL_EOS, 117 NAL_EOB, 118 NAL_FD, 119 NAL_PREFIX_SEI = 39, 120 NAL_SUFFIX_SEI = 40, 121 NAL_RSV_NVCL41 = 41, 122 NAL_RSV_NVCL47 = 47 , 123 NAL_UNSPEC48 = 48 , 124 NAL_UNSPEC63 = 49, 125}; 126 127enum 128{ 129 CHROMA_FMT_IDC_MONOCHROME = 0, 130 CHROMA_FMT_IDC_YUV420 = 1, 131 CHROMA_FMT_IDC_YUV422 = 2, 132 CHROMA_FMT_IDC_YUV444 = 3, 133 CHROMA_FMT_IDC_YUV444_PLANES = 4, 134}; 135 136/* Pred Modes */ 137/* Do not change enum values */ 138enum 139{ 140 PRED_MODE_INTER = 0, 141 PRED_MODE_INTRA = 1, 142 PRED_MODE_SKIP = 2 143}; 144 145/* Partition Modes */ 146/* Do not change enum values */ 147enum 148{ 149 PART_2Nx2N = 0, 150 PART_2NxN = 1, 151 PART_Nx2N = 2, 152 PART_NxN = 3, 153 PART_2NxnU = 4, 154 PART_2NxnD = 5, 155 PART_nLx2N = 6, 156 PART_nRx2N = 7 157}; 158 159/* Prediction list */ 160/* Do not change enum values */ 161enum 162{ 163 PRED_L0 = 0, 164 PRED_L1 = 1, 165 PRED_BI = 2 166}; 167 168/** 169 * Scan types 170 */ 171enum 172{ 173 SCAN_DIAG_UPRIGHT, 174 SCAN_HORZ, 175 SCAN_VERT 176}; 177 178/** 179 * VUI aspect ratio indicator 180 */ 181enum 182{ 183 SAR_UNUSED = 0, 184 SAR_1_1 = 1, 185 SAR_12_11, 186 SAR_10_11, 187 SAR_16_11, 188 SAR_40_33, 189 SAR_24_11, 190 SAR_20_11, 191 SAR_32_11, 192 SAR_80_33, 193 SAR_18_11, 194 SAR_15_11, 195 SAR_64_33, 196 SAR_160_99, 197 SAR_4_3, 198 SAR_3_2, 199 SAR_2_1, 200 EXTENDED_SAR = 255 201}; 202 203enum 204{ 205 VID_FMT_COMPONENT = 0, 206 VID_FMT_PAL, 207 VID_FMT_NTSC, 208 VID_FMT_SECAM, 209 VID_FMT_MAC, 210 VID_FMT_UNSPECIFIED 211}; 212 213#define BIT_DEPTH 8 214#define BIT_DEPTH_LUMA BIT_DEPTH 215#define BIT_DEPTH_CHROMA BIT_DEPTH 216/*****************************************************************************/ 217/* Profile tier level defs */ 218/*****************************************************************************/ 219#define MAX_PROFILE_COMPATBLTY 32 220 221/*****************************************************************************/ 222/* Reference frame defs */ 223/*****************************************************************************/ 224/* Maximum DPB size */ 225#define MAX_DPB_SIZE 16 226 227 228/*****************************************************************************/ 229/* VPS restrictions */ 230/*****************************************************************************/ 231 232/* Number of VPS allowed in Main Profile */ 233#define MAX_VPS_CNT 16 234 235/* Max sub layers in VPS */ 236#define VPS_MAX_SUB_LAYERS 7 237 238/* Max number of HRD parameters */ 239#define VPS_MAX_HRD_PARAMS 2 240 241/* Maximum number of operation point layers */ 242#define VPS_MAX_OP_LAYERS 2 243 244 245/*****************************************************************************/ 246/* Tile restrictions */ 247/*****************************************************************************/ 248/* Minimum tile width in Main Profile */ 249#define MIN_TILE_WD MIN_CTB_SIZE 250 251/* Minimum tile height in Main Profile */ 252#define MIN_TILE_HT MIN_CTB_SIZE 253 254/*****************************************************************************/ 255/* SPS restrictions */ 256/*****************************************************************************/ 257 258/* Number of SPS allowed in Main Profile*/ 259/* An extra buffer is allocated to write the parsed data 260 * It is copied to the appropriate location later */ 261#define MAX_SPS_CNT (16 + 1) 262 263/* Max sub layers in PPS */ 264#define SPS_MAX_SUB_LAYERS 7 265 266/* Maximum long term reference pics */ 267#define MAX_LTREF_PICS_SPS 16 268 269#define MAX_STREF_PICS_SPS 64 270 271/*****************************************************************************/ 272/* PPS restrictions */ 273/*****************************************************************************/ 274 275/* Number of PPS allowed in Main Profile */ 276/* An extra buffer is allocated to write the parsed data 277 * It is copied to the appropriate location later */ 278#define MAX_PPS_CNT (64 + 1) 279 280/*****************************************************************************/ 281/* Macro definitions for sizes of CTB, PU, TU, CU */ 282/*****************************************************************************/ 283 284/* CTB Size Range */ 285#define MAX_CTB_SIZE 64 286#define MIN_CTB_SIZE 16 287 288/* TU Size Range */ 289#define MAX_TU_SIZE 32 290#define MIN_TU_SIZE 4 291 292/* Max Transform Size */ 293#define MAX_TRANS_SIZE (MAX_TU_SIZE*MAX_TU_SIZE) 294 295/* PU Size Range */ 296#define MAX_PU_SIZE 64 297#define MIN_PU_SIZE 4 298 299/* CU Size Range */ 300#define MAX_CU_SIZE 64 301#define MIN_CU_SIZE 8 302 303 304/* Number of max TU in a CTB row */ 305#define MAX_TU_IN_CTB_ROW ((MAX_CTB_SIZE / MIN_TU_SIZE)) 306 307/* Number of max TU in a CTB row */ 308#define MAX_CU_IN_CTB_ROW ((MAX_CTB_SIZE / MIN_CU_SIZE)) 309 310/* Number of max PU in a CTb row */ 311#define MAX_PU_IN_CTB_ROW ((MAX_CTB_SIZE / MIN_PU_SIZE)) 312 313/* Number of max CU in a CTB */ 314#define MAX_CU_IN_CTB ((MAX_CTB_SIZE / MIN_CU_SIZE) * \ 315 (MAX_CTB_SIZE / MIN_CU_SIZE)) 316 317/* Number of max PU in a CTB */ 318/*****************************************************************************/ 319/* Note though for 64 x 64 CTB, Max PU in CTB is 128, in order to store */ 320/* intra pred info, 256 entries are needed */ 321/*****************************************************************************/ 322#define MAX_PU_IN_CTB ((MAX_CTB_SIZE / MIN_PU_SIZE) * \ 323 (MAX_CTB_SIZE / MIN_PU_SIZE)) 324 325/* Number of max TU in a CTB */ 326#define MAX_TU_IN_CTB ((MAX_CTB_SIZE / MIN_TU_SIZE) * \ 327 (MAX_CTB_SIZE / MIN_TU_SIZE)) 328 329 330 331/** 332 * Maximum transform depths 333 */ 334#define MAX_TRAFO_DEPTH 5 335 336 337 338 339/* Max number of deblocking edges */ 340#define MAX_VERT_DEBLK_EDGES ((MAX_CTB_SIZE/8) * (MAX_CTB_SIZE/4)) 341#define MAX_HORZ_DEBLK_EDGES ((MAX_CTB_SIZE/4) * (MAX_CTB_SIZE/8)) 342 343/* Qp can not change below 8x8 level */ 344#define MAX_DEBLK_QP_CNT ((MAX_CTB_SIZE/8) * (MAX_CTB_SIZE/8)) 345 346/*****************************************************************************/ 347/* Parsing related macros */ 348/*****************************************************************************/ 349#define SUBBLK_COEFF_CNT 16 350 351/* Quant and Trans defs */ 352 353/*****************************************************************************/ 354/* Sizes for Transform functions */ 355/*****************************************************************************/ 356#define TRANS_SIZE_4 4 357#define TRANS_SIZE_8 8 358#define TRANS_SIZE_16 16 359#define TRANS_SIZE_32 32 360 361 362#define IT_SHIFT_STAGE_1 7 363#define IT_SHIFT_STAGE_2 12 364 365/** 366 * @brief Maximum transform dynamic range (excluding sign bit) 367 */ 368#define MAX_TR_DYNAMIC_RANGE 15 369 370/** 371 * @brief Q(QP%6) * IQ(QP%6) = 2^20 372 */ 373#define QUANT_IQUANT_SHIFT 20 374 375/** 376 * @brief Q factor for Qp%6 multiplication 377 */ 378#define QUANT_SHIFT 14 379 380/** 381 * @brief Q shift factor for flat rescale matrix weights 382 */ 383#define FLAT_RESCALE_MAT_Q_SHIFT 11 384 385/** 386 * @brief Scaling matrix is represented in Q15 format 387 */ 388#define SCALING_Q_SHIFT 15 389 390/** 391 * @brief rounding factor for quantization represented in Q9 format 392 */ 393#define QUANT_ROUND_FACTOR_Q 9 394 395/** 396 * @brief Minimum qp supported in HEVC spec 397 */ 398#define MIN_HEVC_QP 0 399 400/** 401 * @brief Maximum qp supported in HEVC spec 402 */ 403#define MAX_HEVC_QP 51 //FOR MAIN Branch Encoder 404 405#define MAX_HEVC_QP_10bit 63 //FOR HBD Branch Encoder 406 407 408/** 409 * @brief Total number of transform sizes 410 * used for sizeID while getting scale matrix 411 */ 412#define NUM_UNIQUE_TRANS_SIZE 4 413 414/*****************************************************************************/ 415/* Number of scaling matrices for each transform size */ 416/*****************************************************************************/ 417#define SCALE_MAT_CNT_TRANS_SIZE_4 6 418#define SCALE_MAT_CNT_TRANS_SIZE_8 6 419#define SCALE_MAT_CNT_TRANS_SIZE_16 6 420#define SCALE_MAT_CNT_TRANS_SIZE_32 2 421 422/* Maximum number of scale matrices for a given transform size */ 423#define SCALE_MAT_CNT_MAX_PER_TRANS_SIZE 6 424 425/* Total number of scale matrices */ 426#define TOTAL_SCALE_MAT_COUNT (SCALE_MAT_CNT_TRANS_SIZE_4 + \ 427 SCALE_MAT_CNT_TRANS_SIZE_8 + \ 428 SCALE_MAT_CNT_TRANS_SIZE_16 + \ 429 SCALE_MAT_CNT_TRANS_SIZE_32) 430 431 432/*****************************************************************************/ 433/* Intra pred Macros */ 434/*****************************************************************************/ 435/** Planar Intra prediction mode */ 436#define INTRA_PLANAR 0 437 438/** DC Intra prediction mode */ 439#define INTRA_DC 1 440 441/** Gives angular mode for intra prediction */ 442#define INTRA_ANGULAR(x) (x) 443 444/** Following is used to signal no intra prediction in case of pcm blocks 445 */ 446#define INTRA_PRED_NONE 63 447 448 449/** Following is used to signal no intra prediction is needed for first three 450 * 4x4 luma blocks in case of 4x4 TU sizes 451 * Also used in pcm cases 452 */ 453#define INTRA_PRED_CHROMA_IDX_NONE 7 454 455 456 457#endif /*__IHEVC_DEFS_H_*/ 458