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      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 /*****************************************************************************/
     41 enum
     42 {
     43     IHEVC_PROFILE_MAIN = 0,
     44 };
     45 
     46 enum
     47 {
     48     IHEVC_TIER_MAIN,
     49     IHEVC_TIER_HIGH,
     50 };
     51 
     52 
     53 /* Slice type enums - Do not change the values */
     54 
     55 enum
     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  */
     65 enum
     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 
     83 enum
     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 
    127 enum
    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 */
    138 enum
    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 */
    147 enum
    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 */
    161 enum
    162 {
    163     PRED_L0 = 0,
    164     PRED_L1 = 1,
    165     PRED_BI = 2
    166 };
    167 
    168 /**
    169  * Scan types
    170  */
    171 enum
    172 {
    173     SCAN_DIAG_UPRIGHT,
    174     SCAN_HORZ,
    175     SCAN_VERT
    176 };
    177 
    178 /**
    179  * VUI aspect ratio indicator
    180  */
    181 enum
    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 
    203 enum
    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 typedef enum {
    214     USER_DATA_BAR_DATA       = 0,
    215     USER_DATA_CC_DATA        = 1,
    216     USER_DATA_AFD_DATA       = 2,
    217 
    218     // do not add anything below
    219     USER_DATA_MAX
    220 } USER_DATA_SEI_TYPE_T;
    221 
    222 /**
    223  ****************************************************************************
    224  * SEI payload type
    225  ****************************************************************************
    226  */
    227 enum
    228 {
    229     SEI_BUFFERING_PERIOD                     = 0,
    230     SEI_PICTURE_TIMING                       = 1,
    231     SEI_PAN_SCAN_RECT                        = 2,
    232     SEI_FILLER_PAYLOAD                       = 3,
    233     SEI_USER_DATA_REGISTERED_ITU_T_T35       = 4,
    234     SEI_USER_DATA_UNREGISTERED               = 5,
    235     SEI_RECOVERY_POINT                       = 6,
    236     SEI_SCENE_INFO                           = 9,
    237     SEI_FULL_FRAME_SNAPSHOT                  = 15,
    238     SEI_PROGRESSIVE_REFINEMENT_SEGMENT_START = 16,
    239     SEI_PROGRESSIVE_REFINEMENT_SEGMENT_END   = 17,
    240     SEI_FILM_GRAIN_CHARACTERISTICS           = 19,
    241     SEI_POST_FILTER_HINT                     = 22,
    242     SEI_TONE_MAPPING_INFO                    = 23,
    243     SEI_FRAME_PACKING                        = 45,
    244     SEI_DISPLAY_ORIENTATION                  = 47,
    245     SEI_SOP_DESCRIPTION                      = 128,
    246     SEI_ACTIVE_PARAMETER_SETS                = 129,
    247     SEI_DECODING_UNIT_INFO                   = 130,
    248     SEI_TEMPORAL_LEVEL0_INDEX                = 131,
    249     SEI_DECODED_PICTURE_HASH                 = 132,
    250     SEI_SCALABLE_NESTING                     = 133,
    251     SEI_REGION_REFRESH_INFO                  = 134,
    252     SEI_NO_DISPLAY                           = 135,
    253     SEI_TIME_CODE                            = 136,
    254     SEI_MASTERING_DISPLAY_COLOUR_VOLUME      = 137,
    255     SEI_SEGM_RECT_FRAME_PACKING              = 138,
    256     SEI_TEMP_MOTION_CONSTRAINED_TILE_SETS    = 139,
    257     SEI_CHROMA_SAMPLING_FILTER_HINT          = 140,
    258     SEI_KNEE_FUNCTION_INFO                   = 141
    259 };
    260 
    261 
    262 #define BIT_DEPTH           8
    263 #define BIT_DEPTH_LUMA      BIT_DEPTH
    264 #define BIT_DEPTH_CHROMA    BIT_DEPTH
    265 /*****************************************************************************/
    266 /* Profile tier level defs                                                   */
    267 /*****************************************************************************/
    268 #define MAX_PROFILE_COMPATBLTY 32
    269 
    270 /*****************************************************************************/
    271 /* Reference frame defs                                                      */
    272 /*****************************************************************************/
    273 /* Maximum DPB size */
    274 #define MAX_DPB_SIZE 16
    275 
    276 
    277 /*****************************************************************************/
    278 /* VPS restrictions                                                          */
    279 /*****************************************************************************/
    280 
    281 /* Number of VPS allowed  in Main Profile */
    282 #define MAX_VPS_CNT         16
    283 
    284 /* Max sub layers in VPS */
    285 #define VPS_MAX_SUB_LAYERS  7
    286 
    287 /* Max number of HRD parameters */
    288 #define VPS_MAX_HRD_PARAMS  2
    289 
    290 /* Maximum number of operation point layers */
    291 #define VPS_MAX_OP_LAYERS 2
    292 
    293 
    294 /*****************************************************************************/
    295 /* Tile restrictions                                                         */
    296 /*****************************************************************************/
    297 /* Minimum tile width in Main Profile */
    298 #define MIN_TILE_WD  MAX_CTB_SIZE
    299 
    300 /* Minimum tile height in Main Profile */
    301 #define MIN_TILE_HT  MAX_CTB_SIZE
    302 
    303 /*****************************************************************************/
    304 /* SPS restrictions                                                          */
    305 /*****************************************************************************/
    306 
    307 /* Number of SPS allowed in Main Profile*/
    308 /* An extra buffer is allocated to write the parsed data
    309  * It is copied to the appropriate location later */
    310 #define MAX_SPS_CNT         (16 + 1)
    311 
    312 /* Max sub layers in PPS */
    313 #define SPS_MAX_SUB_LAYERS  7
    314 
    315 /* Maximum long term reference pics */
    316 #define MAX_LTREF_PICS_SPS 32
    317 
    318 #define MAX_STREF_PICS_SPS 64
    319 
    320 /*****************************************************************************/
    321 /* PPS restrictions                                                          */
    322 /*****************************************************************************/
    323 
    324 /* Number of PPS allowed in Main Profile */
    325 /* An extra buffer is allocated to write the parsed data
    326  * It is copied to the appropriate location later */
    327 #define MAX_PPS_CNT         (64 + 1)
    328 
    329 /*****************************************************************************/
    330 /* Macro definitions for sizes of CTB, PU, TU, CU                            */
    331 /*****************************************************************************/
    332 
    333 /* CTB Size Range */
    334 #define MAX_CTB_SIZE        64
    335 #define MIN_CTB_SIZE        16
    336 #define LOG2_MAX_CTB_SIZE   6
    337 #define LOG2_MIN_CTB_SIZE   4
    338 
    339 /* TU Size Range */
    340 #define MAX_TU_SIZE         32
    341 #define MIN_TU_SIZE         4
    342 #define LOG2_MAX_TU_SIZE    5
    343 #define LOG2_MIN_TU_SIZE    2
    344 
    345 /* Max Transform Size */
    346 #define MAX_TRANS_SIZE      (MAX_TU_SIZE*MAX_TU_SIZE)
    347 
    348 /* PU Size Range */
    349 #define MAX_PU_SIZE         64
    350 #define MIN_PU_SIZE         4
    351 #define LOG2_MAX_PU_SIZE    6
    352 #define LOG2_MIN_PU_SIZE    2
    353 
    354 /* CU Size Range */
    355 #define MAX_CU_SIZE         64
    356 #define MIN_CU_SIZE         8
    357 #define LOG2_MAX_CU_SIZE    6
    358 #define LOG2_MIN_CU_SIZE    3
    359 
    360 /* Number of max TU in a CTB row */
    361 #define MAX_TU_IN_CTB_ROW   ((MAX_CTB_SIZE / MIN_TU_SIZE))
    362 
    363 /* Number of max TU in a CTB row */
    364 #define MAX_CU_IN_CTB_ROW   ((MAX_CTB_SIZE / MIN_CU_SIZE))
    365 
    366 /* Number of max PU in a CTb row */
    367 #define MAX_PU_IN_CTB_ROW   ((MAX_CTB_SIZE / MIN_PU_SIZE))
    368 
    369 /* Number of max CU in a CTB */
    370 #define MAX_CU_IN_CTB       ((MAX_CTB_SIZE / MIN_CU_SIZE) * \
    371                              (MAX_CTB_SIZE / MIN_CU_SIZE))
    372 
    373 /* Number of max PU in a CTB */
    374 /*****************************************************************************/
    375 /* Note though for 64 x 64 CTB, Max PU in CTB is 128, in order to store      */
    376 /*  intra pred info, 256 entries are needed                                  */
    377 /*****************************************************************************/
    378 #define MAX_PU_IN_CTB       ((MAX_CTB_SIZE / MIN_PU_SIZE) * \
    379                              (MAX_CTB_SIZE / MIN_PU_SIZE))
    380 
    381 /* Number of max TU in a CTB */
    382 #define MAX_TU_IN_CTB       ((MAX_CTB_SIZE / MIN_TU_SIZE) * \
    383                              (MAX_CTB_SIZE / MIN_TU_SIZE))
    384 
    385 
    386 
    387 /**
    388  * Maximum transform depths
    389  */
    390 #define MAX_TRAFO_DEPTH 5
    391 
    392 
    393 
    394 
    395 /* Max number of deblocking edges */
    396 #define MAX_VERT_DEBLK_EDGES ((MAX_CTB_SIZE/8) * (MAX_CTB_SIZE/4))
    397 #define MAX_HORZ_DEBLK_EDGES ((MAX_CTB_SIZE/4) * (MAX_CTB_SIZE/8))
    398 
    399 /* Qp can not change below 8x8 level */
    400 #define MAX_DEBLK_QP_CNT     ((MAX_CTB_SIZE/8) * (MAX_CTB_SIZE/8))
    401 
    402 /*****************************************************************************/
    403 /* Parsing related macros                                                    */
    404 /*****************************************************************************/
    405 #define SUBBLK_COEFF_CNT    16
    406 
    407 /* Quant and Trans defs */
    408 
    409 /*****************************************************************************/
    410 /* Sizes for Transform functions                                             */
    411 /*****************************************************************************/
    412 #define TRANS_SIZE_4   4
    413 #define TRANS_SIZE_8   8
    414 #define TRANS_SIZE_16 16
    415 #define TRANS_SIZE_32 32
    416 
    417 
    418 #define IT_SHIFT_STAGE_1 7
    419 #define IT_SHIFT_STAGE_2 12
    420 
    421 /**
    422  * @brief  Maximum transform dynamic range (excluding sign bit)
    423  */
    424 #define MAX_TR_DYNAMIC_RANGE  15
    425 
    426 /**
    427  * @brief  Q(QP%6) * IQ(QP%6) = 2^20
    428  */
    429 #define QUANT_IQUANT_SHIFT    20
    430 
    431 /**
    432  * @brief Q factor for Qp%6 multiplication
    433  */
    434 #define QUANT_SHIFT           14
    435 
    436 /**
    437  * @brief Q shift factor for flat rescale matrix weights
    438  */
    439 #define FLAT_RESCALE_MAT_Q_SHIFT    11
    440 
    441 /**
    442  * @brief  Scaling matrix is represented in Q15 format
    443  */
    444 #define SCALING_Q_SHIFT       15
    445 
    446 /**
    447  * @brief  rounding factor for quantization represented in Q9 format
    448  */
    449 #define QUANT_ROUND_FACTOR_Q   9
    450 
    451 /**
    452  * @brief  Minimum qp supported in HEVC spec
    453  */
    454 #define MIN_HEVC_QP 0
    455 
    456 /**
    457  * @brief  Maximum qp supported in HEVC spec
    458  */
    459 #define MAX_HEVC_QP 51  //FOR MAIN Branch Encoder
    460 
    461 #define MAX_HEVC_QP_10bit 63  //FOR HBD Branch Encoder
    462 
    463 #define MAX_HEVC_QP_12bit 75  //FOR HBD Branch Encoder
    464 
    465 
    466 /**
    467  * @brief  Total number of transform sizes
    468  * used for sizeID while getting scale matrix
    469  */
    470 #define NUM_UNIQUE_TRANS_SIZE 4
    471 
    472 /*****************************************************************************/
    473 /* Number of scaling matrices for each transform size                        */
    474 /*****************************************************************************/
    475 #define SCALE_MAT_CNT_TRANS_SIZE_4    6
    476 #define SCALE_MAT_CNT_TRANS_SIZE_8    6
    477 #define SCALE_MAT_CNT_TRANS_SIZE_16   6
    478 #define SCALE_MAT_CNT_TRANS_SIZE_32   2
    479 
    480 /* Maximum number of scale matrices for a given transform size */
    481 #define SCALE_MAT_CNT_MAX_PER_TRANS_SIZE 6
    482 
    483 /* Total number of scale matrices */
    484 #define TOTAL_SCALE_MAT_COUNT   (SCALE_MAT_CNT_TRANS_SIZE_4     + \
    485                                  SCALE_MAT_CNT_TRANS_SIZE_8     + \
    486                                  SCALE_MAT_CNT_TRANS_SIZE_16    + \
    487                                  SCALE_MAT_CNT_TRANS_SIZE_32)
    488 
    489 
    490 /*****************************************************************************/
    491 /* Intra pred Macros                                                         */
    492 /*****************************************************************************/
    493 /** Planar Intra prediction mode */
    494 #define INTRA_PLANAR             0
    495 
    496 /** DC Intra prediction mode */
    497 #define INTRA_DC                 1
    498 
    499 /** Gives angular mode for intra prediction */
    500 #define INTRA_ANGULAR(x) (x)
    501 
    502 /** Following is used to signal no intra prediction in case of pcm blocks
    503  */
    504 #define INTRA_PRED_NONE  63
    505 
    506 
    507 /** Following is used to signal no intra prediction is needed for first three
    508  * 4x4 luma blocks in case of 4x4 TU sizes
    509  * Also used in pcm cases
    510  */
    511 #define INTRA_PRED_CHROMA_IDX_NONE  7
    512 
    513 #define MAX_NUM_CLOCK_TS    3
    514 #define MAX_USERDATA_PAYLOAD 256
    515 
    516 #define MAX_CPB_CNT 32
    517 
    518 #endif /*__IHEVC_DEFS_H_*/
    519