/* The copyright in this software is being made available under the BSD * License, included below. This software may be subject to other third party * and contributor rights, including patent rights, and no such rights are * granted under this license. * * Copyright (c) 2010-2014, ITU/ISO/IEC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may * be used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ /** \file ContextTables.h \brief Defines constants and tables for SBAC \todo number of context models is not matched to actual use, should be fixed */ #ifndef __CONTEXTTABLES__ #define __CONTEXTTABLES__ //! \ingroup TLibCommon //! \{ // ==================================================================================================================== // Constants // ==================================================================================================================== #define MAX_NUM_CTX_MOD 512 ///< maximum number of supported contexts #define NUM_SPLIT_FLAG_CTX 3 ///< number of context models for split flag #define NUM_SKIP_FLAG_CTX 3 ///< number of context models for skip flag #define NUM_MERGE_FLAG_EXT_CTX 1 ///< number of context models for merge flag of merge extended #define NUM_MERGE_IDX_EXT_CTX 1 ///< number of context models for merge index of merge extended #define NUM_PART_SIZE_CTX 4 ///< number of context models for partition size #define NUM_PRED_MODE_CTX 1 ///< number of context models for prediction mode #define NUM_ADI_CTX 1 ///< number of context models for intra prediction #define NUM_CHROMA_PRED_CTX 2 ///< number of context models for intra prediction (chroma) #define NUM_INTER_DIR_CTX 5 ///< number of context models for inter prediction direction #define NUM_MV_RES_CTX 2 ///< number of context models for motion vector difference #define NUM_CHROMA_QP_ADJ_FLAG_CTX 1 ///< number of context models for chroma_qp_adjustment_flag #define NUM_CHROMA_QP_ADJ_IDC_CTX 1 ///< number of context models for chroma_qp_adjustment_idc #define NUM_REF_NO_CTX 2 ///< number of context models for reference index #define NUM_TRANS_SUBDIV_FLAG_CTX 3 ///< number of context models for transform subdivision flags #define NUM_QT_ROOT_CBF_CTX 1 ///< number of context models for QT ROOT CBF #define NUM_DELTA_QP_CTX 3 ///< number of context models for dQP #define NUM_SIG_CG_FLAG_CTX 2 ///< number of context models for MULTI_LEVEL_SIGNIFICANCE #define NUM_EXPLICIT_RDPCM_FLAG_CTX 1 ///< number of context models for the flag which specifies whether to use RDPCM on inter coded residues #define NUM_EXPLICIT_RDPCM_DIR_CTX 1 ///< number of context models for the flag which specifies which RDPCM direction is used on inter coded residues //-------------------------------------------------------------------------------------------------- // context size definitions for significance map #define NUM_SIG_FLAG_CTX_LUMA 28 ///< number of context models for luma sig flag #define NUM_SIG_FLAG_CTX_CHROMA 16 ///< number of context models for chroma sig flag // |----Luma-----| |---Chroma----| static const UInt significanceMapContextSetStart [MAX_NUM_CHANNEL_TYPE][CONTEXT_NUMBER_OF_TYPES] = { {0, 9, 21, 27}, {0, 9, 12, 15} }; static const UInt significanceMapContextSetSize [MAX_NUM_CHANNEL_TYPE][CONTEXT_NUMBER_OF_TYPES] = { {9, 12, 6, 1}, {9, 3, 3, 1} }; static const UInt nonDiagonalScan8x8ContextOffset [MAX_NUM_CHANNEL_TYPE] = { 6, 0 }; static const UInt notFirstGroupNeighbourhoodContextOffset[MAX_NUM_CHANNEL_TYPE] = { 3, 0 }; //------------------ #define NEIGHBOURHOOD_00_CONTEXT_1_THRESHOLD_4x4 3 #define NEIGHBOURHOOD_00_CONTEXT_2_THRESHOLD_4x4 1 //------------------ #define FIRST_SIG_FLAG_CTX_LUMA 0 #define FIRST_SIG_FLAG_CTX_CHROMA (FIRST_SIG_FLAG_CTX_LUMA + NUM_SIG_FLAG_CTX_LUMA) #define NUM_SIG_FLAG_CTX (NUM_SIG_FLAG_CTX_LUMA + NUM_SIG_FLAG_CTX_CHROMA) ///< number of context models for sig flag //-------------------------------------------------------------------------------------------------- // context size definitions for last significant coefficient position #define NUM_CTX_LAST_FLAG_SETS 2 #define NUM_CTX_LAST_FLAG_XY 15 ///< number of context models for last coefficient position //-------------------------------------------------------------------------------------------------- // context size definitions for greater-than-one and greater-than-two maps #define NUM_ONE_FLAG_CTX_PER_SET 4 ///< number of context models for greater than 1 flag in a set #define NUM_ABS_FLAG_CTX_PER_SET 1 ///< number of context models for greater than 2 flag in a set //------------------ #define NUM_CTX_SETS_LUMA 4 ///< number of context model sets for luminance #define NUM_CTX_SETS_CHROMA 2 ///< number of context model sets for combined chrominance #define FIRST_CTX_SET_LUMA 0 ///< index of first luminance context set //------------------ #define NUM_ONE_FLAG_CTX_LUMA (NUM_ONE_FLAG_CTX_PER_SET * NUM_CTX_SETS_LUMA) ///< number of context models for greater than 1 flag of luma #define NUM_ONE_FLAG_CTX_CHROMA (NUM_ONE_FLAG_CTX_PER_SET * NUM_CTX_SETS_CHROMA) ///< number of context models for greater than 1 flag of chroma #define NUM_ABS_FLAG_CTX_LUMA (NUM_ABS_FLAG_CTX_PER_SET * NUM_CTX_SETS_LUMA) ///< number of context models for greater than 2 flag of luma #define NUM_ABS_FLAG_CTX_CHROMA (NUM_ABS_FLAG_CTX_PER_SET * NUM_CTX_SETS_CHROMA) ///< number of context models for greater than 2 flag of chroma #define NUM_ONE_FLAG_CTX (NUM_ONE_FLAG_CTX_LUMA + NUM_ONE_FLAG_CTX_CHROMA) ///< number of context models for greater than 1 flag #define NUM_ABS_FLAG_CTX (NUM_ABS_FLAG_CTX_LUMA + NUM_ABS_FLAG_CTX_CHROMA) ///< number of context models for greater than 2 flag #define FIRST_CTX_SET_CHROMA (FIRST_CTX_SET_LUMA + NUM_CTX_SETS_LUMA) ///< index of first chrominance context set //-------------------------------------------------------------------------------------------------- // context size definitions for CBF #define NUM_QT_CBF_CTX_SETS 2 #define NUM_QT_CBF_CTX_PER_SET 5 ///< number of context models for QT CBF #define FIRST_CBF_CTX_LUMA 0 ///< index of first luminance CBF context #define FIRST_CBF_CTX_CHROMA (FIRST_CBF_CTX_LUMA + NUM_QT_CBF_CTX_PER_SET) ///< index of first chrominance CBF context //-------------------------------------------------------------------------------------------------- #define NUM_MVP_IDX_CTX 1 ///< number of context models for MVP index #define NUM_SAO_MERGE_FLAG_CTX 1 ///< number of context models for SAO merge flags #define NUM_SAO_TYPE_IDX_CTX 1 ///< number of context models for SAO type index #define NUM_TRANSFORMSKIP_FLAG_CTX 1 ///< number of context models for transform skipping #define NUM_CU_TRANSQUANT_BYPASS_FLAG_CTX 1 #define NUM_CROSS_COMPONENT_PREDICTION_CTX 10 #define CNU 154 ///< dummy initialization value for unused context models 'Context model Not Used' // ==================================================================================================================== // Tables // ==================================================================================================================== // initial probability for cu_transquant_bypass flag static const UChar INIT_CU_TRANSQUANT_BYPASS_FLAG[NUMBER_OF_SLICE_TYPES][NUM_CU_TRANSQUANT_BYPASS_FLAG_CTX] = { { 154 }, { 154 }, { 154 }, }; // initial probability for split flag static const UChar INIT_SPLIT_FLAG[NUMBER_OF_SLICE_TYPES][NUM_SPLIT_FLAG_CTX] = { { 107, 139, 126, }, { 107, 139, 126, }, { 139, 141, 157, }, }; static const UChar INIT_SKIP_FLAG[NUMBER_OF_SLICE_TYPES][NUM_SKIP_FLAG_CTX] = { { 197, 185, 201, }, { 197, 185, 201, }, { CNU, CNU, CNU, }, }; static const UChar INIT_MERGE_FLAG_EXT[NUMBER_OF_SLICE_TYPES][NUM_MERGE_FLAG_EXT_CTX] = { { 154, }, { 110, }, { CNU, }, }; static const UChar INIT_MERGE_IDX_EXT[NUMBER_OF_SLICE_TYPES][NUM_MERGE_IDX_EXT_CTX] = { { 137, }, { 122, }, { CNU, }, }; static const UChar INIT_PART_SIZE[NUMBER_OF_SLICE_TYPES][NUM_PART_SIZE_CTX] = { { 154, 139, 154, 154 }, { 154, 139, 154, 154 }, { 184, CNU, CNU, CNU }, }; static const UChar INIT_PRED_MODE[NUMBER_OF_SLICE_TYPES][NUM_PRED_MODE_CTX] = { { 134, }, { 149, }, { CNU, }, }; static const UChar INIT_INTRA_PRED_MODE[NUMBER_OF_SLICE_TYPES][NUM_ADI_CTX] = { { 183, }, { 154, }, { 184, }, }; static const UChar INIT_CHROMA_PRED_MODE[NUMBER_OF_SLICE_TYPES][NUM_CHROMA_PRED_CTX] = { { 152, 139, }, { 152, 139, }, { 63, 139, }, }; static const UChar INIT_INTER_DIR[NUMBER_OF_SLICE_TYPES][NUM_INTER_DIR_CTX] = { { 95, 79, 63, 31, 31, }, { 95, 79, 63, 31, 31, }, { CNU, CNU, CNU, CNU, CNU, }, }; static const UChar INIT_MVD[NUMBER_OF_SLICE_TYPES][NUM_MV_RES_CTX] = { { 169, 198, }, { 140, 198, }, { CNU, CNU, }, }; static const UChar INIT_REF_PIC[NUMBER_OF_SLICE_TYPES][NUM_REF_NO_CTX] = { { 153, 153 }, { 153, 153 }, { CNU, CNU }, }; static const UChar INIT_DQP[NUMBER_OF_SLICE_TYPES][NUM_DELTA_QP_CTX] = { { 154, 154, 154, }, { 154, 154, 154, }, { 154, 154, 154, }, }; static const UChar INIT_CHROMA_QP_ADJ_FLAG[NUMBER_OF_SLICE_TYPES][NUM_CHROMA_QP_ADJ_FLAG_CTX] = { { 154, }, { 154, }, { 154, }, }; static const UChar INIT_CHROMA_QP_ADJ_IDC[NUMBER_OF_SLICE_TYPES][NUM_CHROMA_QP_ADJ_IDC_CTX] = { { 154, }, { 154, }, { 154, }, }; //-------------------------------------------------------------------------------------------------- //Initialisation for CBF // |---------Luminance---------| #define BSLICE_LUMA_CBF_CONTEXT 153, 111, CNU, CNU, CNU #define PSLICE_LUMA_CBF_CONTEXT 153, 111, CNU, CNU, CNU #define ISLICE_LUMA_CBF_CONTEXT 111, 141, CNU, CNU, CNU // |--------Chrominance--------| #define BSLICE_CHROMA_CBF_CONTEXT 149, 92, 167, 154, 154 #define PSLICE_CHROMA_CBF_CONTEXT 149, 107, 167, 154, 154 #define ISLICE_CHROMA_CBF_CONTEXT 94, 138, 182, 154, 154 static const UChar INIT_QT_CBF[NUMBER_OF_SLICE_TYPES][NUM_QT_CBF_CTX_SETS * NUM_QT_CBF_CTX_PER_SET] = { { BSLICE_LUMA_CBF_CONTEXT, BSLICE_CHROMA_CBF_CONTEXT }, { PSLICE_LUMA_CBF_CONTEXT, PSLICE_CHROMA_CBF_CONTEXT }, { ISLICE_LUMA_CBF_CONTEXT, ISLICE_CHROMA_CBF_CONTEXT }, }; //-------------------------------------------------------------------------------------------------- static const UChar INIT_QT_ROOT_CBF[NUMBER_OF_SLICE_TYPES][NUM_QT_ROOT_CBF_CTX] = { { 79, }, { 79, }, { CNU, }, }; //-------------------------------------------------------------------------------------------------- //Initialisation for last-significant-position // |------------------------------Luminance----------------------------------| #define BSLICE_LUMA_LAST_POSITION_CONTEXT 125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111, 79 #define PSLICE_LUMA_LAST_POSITION_CONTEXT 125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95, 94 #define ISLICE_LUMA_LAST_POSITION_CONTEXT 110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111, 79 // |------------------------------Chrominance--------------------------------| #define BSLICE_CHROMA_LAST_POSITION_CONTEXT 108, 123, 93, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU #define PSLICE_CHROMA_LAST_POSITION_CONTEXT 108, 123, 108, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU #define ISLICE_CHROMA_LAST_POSITION_CONTEXT 108, 123, 63, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU static const UChar INIT_LAST[NUMBER_OF_SLICE_TYPES][NUM_CTX_LAST_FLAG_SETS * NUM_CTX_LAST_FLAG_XY] = { { BSLICE_LUMA_LAST_POSITION_CONTEXT, BSLICE_CHROMA_LAST_POSITION_CONTEXT }, { PSLICE_LUMA_LAST_POSITION_CONTEXT, PSLICE_CHROMA_LAST_POSITION_CONTEXT }, { ISLICE_LUMA_LAST_POSITION_CONTEXT, ISLICE_CHROMA_LAST_POSITION_CONTEXT }, }; //-------------------------------------------------------------------------------------------------- static const UChar INIT_SIG_CG_FLAG[NUMBER_OF_SLICE_TYPES][2 * NUM_SIG_CG_FLAG_CTX] = { { 121, 140, 61, 154, }, { 121, 140, 61, 154, }, { 91, 171, 134, 141, }, }; //-------------------------------------------------------------------------------------------------- //Initialisation for significance map // |-DC-| |-----------------4x4------------------| |------8x8 Diagonal Scan------| |----8x8 Non-Diagonal Scan----| |-NxN First group-| |-NxN Other group-| |-Single context-| // | | | | |-First Group-| |-Other Group-| |-First Group-| |-Other Group-| | | | | | | #define BSLICE_LUMA_SIGNIFICANCE_CONTEXT 170, 154, 139, 153, 139, 123, 123, 63, 124, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 140 #define PSLICE_LUMA_SIGNIFICANCE_CONTEXT 155, 154, 139, 153, 139, 123, 123, 63, 153, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 140 #define ISLICE_LUMA_SIGNIFICANCE_CONTEXT 111, 111, 125, 110, 110, 94, 124, 108, 124, 107, 125, 141, 179, 153, 125, 107, 125, 141, 179, 153, 125, 107, 125, 141, 179, 153, 125, 141 // |-DC-| |-----------------4x4------------------| |-8x8 Any group-| |-NxN Any group-| |-Single context-| #define BSLICE_CHROMA_SIGNIFICANCE_CONTEXT 170, 153, 138, 138, 122, 121, 122, 121, 167, 151, 183, 140, 151, 183, 140, 140 #define PSLICE_CHROMA_SIGNIFICANCE_CONTEXT 170, 153, 123, 123, 107, 121, 107, 121, 167, 151, 183, 140, 151, 183, 140, 140 #define ISLICE_CHROMA_SIGNIFICANCE_CONTEXT 140, 139, 182, 182, 152, 136, 152, 136, 153, 136, 139, 111, 136, 139, 111, 111 //------------------------------------------------ static const UChar INIT_SIG_FLAG[NUMBER_OF_SLICE_TYPES][NUM_SIG_FLAG_CTX] = { { BSLICE_LUMA_SIGNIFICANCE_CONTEXT, BSLICE_CHROMA_SIGNIFICANCE_CONTEXT }, { PSLICE_LUMA_SIGNIFICANCE_CONTEXT, PSLICE_CHROMA_SIGNIFICANCE_CONTEXT }, { ISLICE_LUMA_SIGNIFICANCE_CONTEXT, ISLICE_CHROMA_SIGNIFICANCE_CONTEXT }, }; //-------------------------------------------------------------------------------------------------- //Initialisation for greater-than-one flags and greater-than-two flags // |------Set 0-------| |------Set 1-------| |------Set 2-------| |------Set 3-------| #define BSLICE_LUMA_ONE_CONTEXT 154, 196, 167, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121, 136, 122 #define PSLICE_LUMA_ONE_CONTEXT 154, 196, 196, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121, 136, 137 #define ISLICE_LUMA_ONE_CONTEXT 140, 92, 137, 138, 140, 152, 138, 139, 153, 74, 149, 92, 139, 107, 122, 152 #define BSLICE_LUMA_ABS_CONTEXT 107, 167, 91, 107 #define PSLICE_LUMA_ABS_CONTEXT 107, 167, 91, 122 #define ISLICE_LUMA_ABS_CONTEXT 138, 153, 136, 167 // |------Set 4-------| |------Set 5-------| #define BSLICE_CHROMA_ONE_CONTEXT 169, 208, 166, 167, 154, 152, 167, 182 #define PSLICE_CHROMA_ONE_CONTEXT 169, 194, 166, 167, 154, 167, 137, 182 #define ISLICE_CHROMA_ONE_CONTEXT 140, 179, 166, 182, 140, 227, 122, 197 #define BSLICE_CHROMA_ABS_CONTEXT 107, 167 #define PSLICE_CHROMA_ABS_CONTEXT 107, 167 #define ISLICE_CHROMA_ABS_CONTEXT 152, 152 //------------------------------------------------ static const UChar INIT_ONE_FLAG[NUMBER_OF_SLICE_TYPES][NUM_ONE_FLAG_CTX] = { { BSLICE_LUMA_ONE_CONTEXT, BSLICE_CHROMA_ONE_CONTEXT }, { PSLICE_LUMA_ONE_CONTEXT, PSLICE_CHROMA_ONE_CONTEXT }, { ISLICE_LUMA_ONE_CONTEXT, ISLICE_CHROMA_ONE_CONTEXT }, }; static const UChar INIT_ABS_FLAG[NUMBER_OF_SLICE_TYPES][NUM_ABS_FLAG_CTX] = { { BSLICE_LUMA_ABS_CONTEXT, BSLICE_CHROMA_ABS_CONTEXT }, { PSLICE_LUMA_ABS_CONTEXT, PSLICE_CHROMA_ABS_CONTEXT }, { ISLICE_LUMA_ABS_CONTEXT, ISLICE_CHROMA_ABS_CONTEXT }, }; //-------------------------------------------------------------------------------------------------- static const UChar INIT_MVP_IDX[NUMBER_OF_SLICE_TYPES][NUM_MVP_IDX_CTX] = { { 168, }, { 168, }, { CNU, }, }; static const UChar INIT_SAO_MERGE_FLAG[NUMBER_OF_SLICE_TYPES][NUM_SAO_MERGE_FLAG_CTX] = { { 153, }, { 153, }, { 153, }, }; static const UChar INIT_SAO_TYPE_IDX[NUMBER_OF_SLICE_TYPES][NUM_SAO_TYPE_IDX_CTX] = { { 160, }, { 185, }, { 200, }, }; static const UChar INIT_TRANS_SUBDIV_FLAG[NUMBER_OF_SLICE_TYPES][NUM_TRANS_SUBDIV_FLAG_CTX] = { { 224, 167, 122, }, { 124, 138, 94, }, { 153, 138, 138, }, }; static const UChar INIT_TRANSFORMSKIP_FLAG[NUMBER_OF_SLICE_TYPES][2*NUM_TRANSFORMSKIP_FLAG_CTX] = { { 139, 139}, { 139, 139}, { 139, 139}, }; static const UChar INIT_EXPLICIT_RDPCM_FLAG[NUMBER_OF_SLICE_TYPES][2*NUM_EXPLICIT_RDPCM_FLAG_CTX] = { {139, 139}, {139, 139}, {CNU, CNU} }; static const UChar INIT_EXPLICIT_RDPCM_DIR[NUMBER_OF_SLICE_TYPES][2*NUM_EXPLICIT_RDPCM_DIR_CTX] = { {139, 139}, {139, 139}, {CNU, CNU} }; static const UChar INIT_CROSS_COMPONENT_PREDICTION[NUMBER_OF_SLICE_TYPES][NUM_CROSS_COMPONENT_PREDICTION_CTX] = { { 154, 154, 154, 154, 154, 154, 154, 154, 154, 154 }, { 154, 154, 154, 154, 154, 154, 154, 154, 154, 154 }, { 154, 154, 154, 154, 154, 154, 154, 154, 154, 154 }, }; //! \} #endif