ref: fc9203cb509178415a52cbee3dedf28460af95c3
dir: /codec/decoder/core/inc/vlc_decoder.h/
/*! * \copy * Copyright (c) 2013, Cisco Systems * 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. * * 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. * */ #ifndef WELS_VLC_DECODER_H__ #define WELS_VLC_DECODER_H__ #include "bit_stream.h" #include "dec_golomb.h" namespace WelsDec { typedef struct TagVlcTable { const uint8_t (*kpCoeffTokenVlcTable[4][8])[2]; const uint8_t (*kpChromaCoeffTokenVlcTable)[2]; const uint8_t (*kpZeroTable[7])[2]; const uint8_t (*kpTotalZerosTable[2][15])[2]; } SVlcTable; // for data sharing cross modules and try to reduce size of binary generated extern const uint8_t g_kuiVlcChromaTable[256][2]; extern const uint8_t g_kuiVlcTable_0[256][2]; extern const uint8_t g_kuiVlcTable_0_0[256][2]; extern const uint8_t g_kuiVlcTable_0_1[4][2]; extern const uint8_t g_kuiVlcTable_0_2[2][2]; extern const uint8_t g_kuiVlcTable_0_3[2][2]; extern const uint8_t g_kuiVlcTable_1[256][2]; extern const uint8_t g_kuiVlcTable_1_0[64][2]; extern const uint8_t g_kuiVlcTable_1_1[8][2]; extern const uint8_t g_kuiVlcTable_1_2[2][2]; extern const uint8_t g_kuiVlcTable_1_3[2][2]; extern const uint8_t g_kuiVlcTable_2[256][2]; extern const uint8_t g_kuiVlcTable_2_0[4][2]; extern const uint8_t g_kuiVlcTable_2_1[4][2]; extern const uint8_t g_kuiVlcTable_2_2[4][2]; extern const uint8_t g_kuiVlcTable_2_3[4][2]; extern const uint8_t g_kuiVlcTable_2_4[2][2]; extern const uint8_t g_kuiVlcTable_2_5[2][2]; extern const uint8_t g_kuiVlcTable_2_6[2][2]; extern const uint8_t g_kuiVlcTable_2_7[2][2]; extern const uint8_t g_kuiVlcTable_3[64][2]; extern const uint8_t g_kuiVlcTableNeedMoreBitsThread[3]; extern const uint8_t g_kuiVlcTableMoreBitsCount0[4]; extern const uint8_t g_kuiVlcTableMoreBitsCount1[4]; extern const uint8_t g_kuiVlcTableMoreBitsCount2[8]; extern const uint8_t g_kuiNcMapTable[17]; extern const uint8_t g_kuiVlcTrailingOneTotalCoeffTable[62][2]; extern const uint8_t g_kuiTotalZerosTable0[512][2]; extern const uint8_t g_kuiTotalZerosTable1[64][2]; extern const uint8_t g_kuiTotalZerosTable2[64][2]; extern const uint8_t g_kuiTotalZerosTable3[32][2]; extern const uint8_t g_kuiTotalZerosTable4[32][2]; extern const uint8_t g_kuiTotalZerosTable5[64][2]; extern const uint8_t g_kuiTotalZerosTable6[64][2]; extern const uint8_t g_kuiTotalZerosTable7[64][2]; extern const uint8_t g_kuiTotalZerosTable8[64][2]; extern const uint8_t g_kuiTotalZerosTable9[32][2]; extern const uint8_t g_kuiTotalZerosTable10[16][2]; extern const uint8_t g_kuiTotalZerosTable11[16][2]; extern const uint8_t g_kuiTotalZerosTable12[8][2]; extern const uint8_t g_kuiTotalZerosTable13[4][2]; extern const uint8_t g_kuiTotalZerosTable14[2][2]; extern const uint8_t g_kuiTotalZerosBitNumMap[15]; extern const uint8_t g_kuiTotalZerosChromaTable0[8][2]; extern const uint8_t g_kuiTotalZerosChromaTable1[4][2]; extern const uint8_t g_kuiTotalZerosChromaTable2[2][2]; extern const uint8_t g_kuiTotalZerosBitNumChromaMap[3]; extern const uint8_t g_kuiZeroLeftTable0[2][2]; extern const uint8_t g_kuiZeroLeftTable1[4][2]; extern const uint8_t g_kuiZeroLeftTable2[4][2]; extern const uint8_t g_kuiZeroLeftTable3[8][2]; extern const uint8_t g_kuiZeroLeftTable4[8][2]; extern const uint8_t g_kuiZeroLeftTable5[8][2]; extern const uint8_t g_kuiZeroLeftTable6[8][2]; extern const uint8_t g_kuiZeroLeftBitNumMap[16]; #if defined(_MSC_VER) && defined(_M_IX86) //TODO need linux version #define WELS_GET_PREFIX_BITS(inval,outval){\ uint32_t local = inval;\ __asm xor eax, eax\ __asm bsr eax, local\ __asm sub eax, 32\ __asm neg eax\ __asm mov outval, eax\ } #else #define WELS_GET_PREFIX_BITS(inval, outval) outval = GetPrefixBits(inval) #endif static inline void InitVlcTable (SVlcTable* pVlcTable) { pVlcTable->kpChromaCoeffTokenVlcTable = g_kuiVlcChromaTable; pVlcTable->kpCoeffTokenVlcTable[0][0] = g_kuiVlcTable_0; pVlcTable->kpCoeffTokenVlcTable[0][1] = g_kuiVlcTable_1; pVlcTable->kpCoeffTokenVlcTable[0][2] = g_kuiVlcTable_2; pVlcTable->kpCoeffTokenVlcTable[0][3] = g_kuiVlcTable_3; pVlcTable->kpCoeffTokenVlcTable[1][0] = g_kuiVlcTable_0_0; pVlcTable->kpCoeffTokenVlcTable[1][1] = g_kuiVlcTable_0_1; pVlcTable->kpCoeffTokenVlcTable[1][2] = g_kuiVlcTable_0_2; pVlcTable->kpCoeffTokenVlcTable[1][3] = g_kuiVlcTable_0_3; pVlcTable->kpCoeffTokenVlcTable[2][0] = g_kuiVlcTable_1_0; pVlcTable->kpCoeffTokenVlcTable[2][1] = g_kuiVlcTable_1_1; pVlcTable->kpCoeffTokenVlcTable[2][2] = g_kuiVlcTable_1_2; pVlcTable->kpCoeffTokenVlcTable[2][3] = g_kuiVlcTable_1_3; pVlcTable->kpCoeffTokenVlcTable[3][0] = g_kuiVlcTable_2_0; pVlcTable->kpCoeffTokenVlcTable[3][1] = g_kuiVlcTable_2_1; pVlcTable->kpCoeffTokenVlcTable[3][2] = g_kuiVlcTable_2_2; pVlcTable->kpCoeffTokenVlcTable[3][3] = g_kuiVlcTable_2_3; pVlcTable->kpCoeffTokenVlcTable[3][4] = g_kuiVlcTable_2_4; pVlcTable->kpCoeffTokenVlcTable[3][5] = g_kuiVlcTable_2_5; pVlcTable->kpCoeffTokenVlcTable[3][6] = g_kuiVlcTable_2_6; pVlcTable->kpCoeffTokenVlcTable[3][7] = g_kuiVlcTable_2_7; pVlcTable->kpZeroTable[0] = g_kuiZeroLeftTable0; pVlcTable->kpZeroTable[1] = g_kuiZeroLeftTable1; pVlcTable->kpZeroTable[2] = g_kuiZeroLeftTable2; pVlcTable->kpZeroTable[3] = g_kuiZeroLeftTable3; pVlcTable->kpZeroTable[4] = g_kuiZeroLeftTable4; pVlcTable->kpZeroTable[5] = g_kuiZeroLeftTable5; pVlcTable->kpZeroTable[6] = g_kuiZeroLeftTable6; pVlcTable->kpTotalZerosTable[0][0] = g_kuiTotalZerosTable0; pVlcTable->kpTotalZerosTable[0][1] = g_kuiTotalZerosTable1; pVlcTable->kpTotalZerosTable[0][2] = g_kuiTotalZerosTable2; pVlcTable->kpTotalZerosTable[0][3] = g_kuiTotalZerosTable3; pVlcTable->kpTotalZerosTable[0][4] = g_kuiTotalZerosTable4; pVlcTable->kpTotalZerosTable[0][5] = g_kuiTotalZerosTable5; pVlcTable->kpTotalZerosTable[0][6] = g_kuiTotalZerosTable6; pVlcTable->kpTotalZerosTable[0][7] = g_kuiTotalZerosTable7; pVlcTable->kpTotalZerosTable[0][8] = g_kuiTotalZerosTable8; pVlcTable->kpTotalZerosTable[0][9] = g_kuiTotalZerosTable9; pVlcTable->kpTotalZerosTable[0][10] = g_kuiTotalZerosTable10; pVlcTable->kpTotalZerosTable[0][11] = g_kuiTotalZerosTable11; pVlcTable->kpTotalZerosTable[0][12] = g_kuiTotalZerosTable12; pVlcTable->kpTotalZerosTable[0][13] = g_kuiTotalZerosTable13; pVlcTable->kpTotalZerosTable[0][14] = g_kuiTotalZerosTable14; pVlcTable->kpTotalZerosTable[1][0] = g_kuiTotalZerosChromaTable0; pVlcTable->kpTotalZerosTable[1][1] = g_kuiTotalZerosChromaTable1; pVlcTable->kpTotalZerosTable[1][2] = g_kuiTotalZerosChromaTable2; } } // namespace WelsDec #endif//WELS_VLC_DECODER_H__