/* 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) 2010-2013, 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 TComRom.h \brief global variables & functions (header) */ #ifndef X265_TCOMROM_H #define X265_TCOMROM_H #include "common.h" namespace x265 { // private namespace #define NUM_CU_DEPTH 4 // maximun number of CU depths #define NUM_FULL_DEPTH 5 // maximun number of full depths #define MIN_LOG2_CU_SIZE 3 // log2(minCUSize) #define MAX_LOG2_CU_SIZE 6 // log2(maxCUSize) #define MIN_CU_SIZE (1 << MIN_LOG2_CU_SIZE) // minimum allowable size of CU #define MAX_CU_SIZE (1 << MAX_LOG2_CU_SIZE) // maximum allowable size of CU #define LOG2_UNIT_SIZE 2 // log2(unitSize) #define UNIT_SIZE (1 << LOG2_UNIT_SIZE) // unit size of CU partition #define TMVP_UNIT_MASK 0xF0 // mask for mapping index to CompressMV field #define MIN_PU_SIZE 4 #define MIN_TU_SIZE 4 #define MAX_NUM_SPU_W (MAX_CU_SIZE / MIN_PU_SIZE) // maximum number of SPU in horizontal line #define ADI_BUF_STRIDE (2 * MAX_CU_SIZE + 1 + 15) // alignment to 16 bytes #define MAX_LOG2_TR_SIZE 5 #define MAX_LOG2_TS_SIZE 2 // TODO: RExt #define MAX_TR_SIZE (1 << MAX_LOG2_TR_SIZE) #define MAX_TS_SIZE (1 << MAX_LOG2_TS_SIZE) #define SLFASE_CONSTANT 0x5f4e4a53 void initROM(); void destroyROM(); static const int chromaQPMappingTableSize = 70; extern const uint8_t g_chromaScale[chromaQPMappingTableSize]; extern const uint8_t g_chroma422IntraAngleMappingTable[36]; // flexible conversion from relative to absolute index extern uint32_t g_zscanToRaster[MAX_NUM_SPU_W * MAX_NUM_SPU_W]; extern uint32_t g_rasterToZscan[MAX_NUM_SPU_W * MAX_NUM_SPU_W]; void initZscanToRaster(uint32_t maxFullDepth, uint32_t depth, uint32_t startVal, uint32_t*& curIdx); void initRasterToZscan(uint32_t maxFullDepth); // conversion of partition index to picture pel position extern uint32_t g_rasterToPelX[MAX_NUM_SPU_W * MAX_NUM_SPU_W]; extern uint32_t g_rasterToPelY[MAX_NUM_SPU_W * MAX_NUM_SPU_W]; void initRasterToPelXY(uint32_t maxFullDepth); // global variable (LCU width/height, max. CU depth) extern uint32_t g_maxLog2CUSize; extern uint32_t g_maxCUSize; extern uint32_t g_maxCUDepth; extern uint32_t g_maxFullDepth; extern const uint32_t g_puOffset[8]; extern const int16_t g_t4[4][4]; extern const int16_t g_t8[8][8]; extern const int16_t g_t16[16][16]; extern const int16_t g_t32[32][32]; // Subpel interpolation defines and constants #define NTAPS_LUMA 8 ///< Number of taps for luma #define NTAPS_CHROMA 4 ///< Number of taps for chroma #define IF_INTERNAL_PREC 14 ///< Number of bits for internal precision #define IF_FILTER_PREC 6 ///< Log2 of sum of filter taps #define IF_INTERNAL_OFFS (1 << (IF_INTERNAL_PREC - 1)) ///< Offset used internally extern const int16_t g_lumaFilter[4][NTAPS_LUMA]; ///< Luma filter taps extern const int16_t g_chromaFilter[8][NTAPS_CHROMA]; ///< Chroma filter taps // Scanning order & context mapping table // coefficient scanning type used in ACS enum ScanType { SCAN_DIAG = 0, // up-right diagonal scan SCAN_HOR = 1, // horizontal first scan SCAN_VER = 2, // vertical first scan NUM_SCAN_TYPE = 3 }; enum SignificanceMapContextType { CONTEXT_TYPE_4x4 = 0, CONTEXT_TYPE_8x8 = 1, CONTEXT_TYPE_NxN = 2, CONTEXT_NUMBER_OF_TYPES = 3 }; #define NUM_SCAN_SIZE 4 extern const uint16_t* const g_scanOrder[NUM_SCAN_TYPE][NUM_SCAN_SIZE]; extern const uint16_t* const g_scanOrderCG[NUM_SCAN_TYPE][NUM_SCAN_SIZE]; extern const uint16_t g_scan8x8diag[8 * 8]; extern const uint16_t g_scan4x4[NUM_SCAN_TYPE][4 * 4]; extern const uint8_t g_minInGroup[10]; extern const uint8_t g_goRiceRange[5]; // maximum value coded with Rice codes extern const uint8_t g_log2Size[MAX_CU_SIZE + 1]; // from size to log2(size) // Map Luma samples to chroma samples extern const int g_winUnitX[MAX_CHROMA_FORMAT_IDC + 1]; extern const int g_winUnitY[MAX_CHROMA_FORMAT_IDC + 1]; extern double x265_lambda_tab[MAX_MAX_QP + 1]; extern double x265_lambda2_tab[MAX_MAX_QP + 1]; extern const uint16_t x265_chroma_lambda2_offset_tab[MAX_CHROMA_LAMBDA_OFFSET+1]; // CABAC tables extern const uint8_t g_lpsTable[64][4]; extern const uint8_t x265_exp2_lut[64]; // Intra tables extern const uint8_t g_intraFilterFlags[35]; } #endif //ifndef X265_TCOMROM_H