178 lines
7.6 KiB
C++
178 lines
7.6 KiB
C++
/*!
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* \copy
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* Copyright (c) 2013, Cisco Systems
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef WELS_VLC_DECODER_H__
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#define WELS_VLC_DECODER_H__
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#include "bit_stream.h"
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#include "dec_golomb.h"
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namespace WelsDec {
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typedef struct TagVlcTable {
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const uint8_t (*kpCoeffTokenVlcTable[4][8])[2];
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const uint8_t (*kpChromaCoeffTokenVlcTable)[2];
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const uint8_t (*kpZeroTable[7])[2];
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const uint8_t (*kpTotalZerosTable[2][15])[2];
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} SVlcTable;
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// for data sharing cross modules and try to reduce size of binary generated
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extern const uint8_t g_kuiVlcChromaTable[256][2];
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extern const uint8_t g_kuiVlcTable_0[256][2];
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extern const uint8_t g_kuiVlcTable_0_0[256][2];
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extern const uint8_t g_kuiVlcTable_0_1[4][2];
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extern const uint8_t g_kuiVlcTable_0_2[2][2];
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extern const uint8_t g_kuiVlcTable_0_3[2][2];
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extern const uint8_t g_kuiVlcTable_1[256][2];
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extern const uint8_t g_kuiVlcTable_1_0[64][2];
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extern const uint8_t g_kuiVlcTable_1_1[8][2];
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extern const uint8_t g_kuiVlcTable_1_2[2][2];
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extern const uint8_t g_kuiVlcTable_1_3[2][2];
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extern const uint8_t g_kuiVlcTable_2[256][2];
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extern const uint8_t g_kuiVlcTable_2_0[4][2];
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extern const uint8_t g_kuiVlcTable_2_1[4][2];
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extern const uint8_t g_kuiVlcTable_2_2[4][2];
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extern const uint8_t g_kuiVlcTable_2_3[4][2];
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extern const uint8_t g_kuiVlcTable_2_4[2][2];
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extern const uint8_t g_kuiVlcTable_2_5[2][2];
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extern const uint8_t g_kuiVlcTable_2_6[2][2];
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extern const uint8_t g_kuiVlcTable_2_7[2][2];
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extern const uint8_t g_kuiVlcTable_3[64][2];
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extern const uint8_t g_kuiVlcTableNeedMoreBitsThread[3];
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extern const uint8_t g_kuiVlcTableMoreBitsCount0[4];
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extern const uint8_t g_kuiVlcTableMoreBitsCount1[4];
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extern const uint8_t g_kuiVlcTableMoreBitsCount2[8];
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extern const uint8_t g_kuiNcMapTable[17];
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extern const uint8_t g_kuiVlcTrailingOneTotalCoeffTable[62][2];
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extern const uint8_t g_kuiTotalZerosTable0[512][2];
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extern const uint8_t g_kuiTotalZerosTable1[64][2];
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extern const uint8_t g_kuiTotalZerosTable2[64][2];
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extern const uint8_t g_kuiTotalZerosTable3[32][2];
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extern const uint8_t g_kuiTotalZerosTable4[32][2];
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extern const uint8_t g_kuiTotalZerosTable5[64][2];
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extern const uint8_t g_kuiTotalZerosTable6[64][2];
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extern const uint8_t g_kuiTotalZerosTable7[64][2];
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extern const uint8_t g_kuiTotalZerosTable8[64][2];
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extern const uint8_t g_kuiTotalZerosTable9[32][2];
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extern const uint8_t g_kuiTotalZerosTable10[16][2];
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extern const uint8_t g_kuiTotalZerosTable11[16][2];
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extern const uint8_t g_kuiTotalZerosTable12[8][2];
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extern const uint8_t g_kuiTotalZerosTable13[4][2];
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extern const uint8_t g_kuiTotalZerosTable14[2][2];
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extern const uint8_t g_kuiTotalZerosBitNumMap[15];
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extern const uint8_t g_kuiTotalZerosChromaTable0[8][2];
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extern const uint8_t g_kuiTotalZerosChromaTable1[4][2];
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extern const uint8_t g_kuiTotalZerosChromaTable2[2][2];
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extern const uint8_t g_kuiTotalZerosBitNumChromaMap[3];
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extern const uint8_t g_kuiZeroLeftTable0[2][2];
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extern const uint8_t g_kuiZeroLeftTable1[4][2];
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extern const uint8_t g_kuiZeroLeftTable2[4][2];
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extern const uint8_t g_kuiZeroLeftTable3[8][2];
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extern const uint8_t g_kuiZeroLeftTable4[8][2];
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extern const uint8_t g_kuiZeroLeftTable5[8][2];
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extern const uint8_t g_kuiZeroLeftTable6[8][2];
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extern const uint8_t g_kuiZeroLeftBitNumMap[16];
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#if defined(_MSC_VER) && defined(_M_IX86)
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//TODO need linux version
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#define WELS_GET_PREFIX_BITS(inval,outval){\
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uint32_t local = inval;\
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__asm xor eax, eax\
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__asm bsr eax, local\
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__asm sub eax, 32\
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__asm neg eax\
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__asm mov outval, eax\
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}
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#else
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#define WELS_GET_PREFIX_BITS(inval, outval) outval = GetPrefixBits(inval)
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#endif
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static inline void InitVlcTable (SVlcTable* pVlcTable) {
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pVlcTable->kpChromaCoeffTokenVlcTable = g_kuiVlcChromaTable;
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pVlcTable->kpCoeffTokenVlcTable[0][0] = g_kuiVlcTable_0;
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pVlcTable->kpCoeffTokenVlcTable[0][1] = g_kuiVlcTable_1;
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pVlcTable->kpCoeffTokenVlcTable[0][2] = g_kuiVlcTable_2;
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pVlcTable->kpCoeffTokenVlcTable[0][3] = g_kuiVlcTable_3;
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pVlcTable->kpCoeffTokenVlcTable[1][0] = g_kuiVlcTable_0_0;
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pVlcTable->kpCoeffTokenVlcTable[1][1] = g_kuiVlcTable_0_1;
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pVlcTable->kpCoeffTokenVlcTable[1][2] = g_kuiVlcTable_0_2;
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pVlcTable->kpCoeffTokenVlcTable[1][3] = g_kuiVlcTable_0_3;
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pVlcTable->kpCoeffTokenVlcTable[2][0] = g_kuiVlcTable_1_0;
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pVlcTable->kpCoeffTokenVlcTable[2][1] = g_kuiVlcTable_1_1;
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pVlcTable->kpCoeffTokenVlcTable[2][2] = g_kuiVlcTable_1_2;
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pVlcTable->kpCoeffTokenVlcTable[2][3] = g_kuiVlcTable_1_3;
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pVlcTable->kpCoeffTokenVlcTable[3][0] = g_kuiVlcTable_2_0;
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pVlcTable->kpCoeffTokenVlcTable[3][1] = g_kuiVlcTable_2_1;
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pVlcTable->kpCoeffTokenVlcTable[3][2] = g_kuiVlcTable_2_2;
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pVlcTable->kpCoeffTokenVlcTable[3][3] = g_kuiVlcTable_2_3;
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pVlcTable->kpCoeffTokenVlcTable[3][4] = g_kuiVlcTable_2_4;
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pVlcTable->kpCoeffTokenVlcTable[3][5] = g_kuiVlcTable_2_5;
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pVlcTable->kpCoeffTokenVlcTable[3][6] = g_kuiVlcTable_2_6;
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pVlcTable->kpCoeffTokenVlcTable[3][7] = g_kuiVlcTable_2_7;
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pVlcTable->kpZeroTable[0] = g_kuiZeroLeftTable0;
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pVlcTable->kpZeroTable[1] = g_kuiZeroLeftTable1;
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pVlcTable->kpZeroTable[2] = g_kuiZeroLeftTable2;
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pVlcTable->kpZeroTable[3] = g_kuiZeroLeftTable3;
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pVlcTable->kpZeroTable[4] = g_kuiZeroLeftTable4;
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pVlcTable->kpZeroTable[5] = g_kuiZeroLeftTable5;
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pVlcTable->kpZeroTable[6] = g_kuiZeroLeftTable6;
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pVlcTable->kpTotalZerosTable[0][0] = g_kuiTotalZerosTable0;
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pVlcTable->kpTotalZerosTable[0][1] = g_kuiTotalZerosTable1;
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pVlcTable->kpTotalZerosTable[0][2] = g_kuiTotalZerosTable2;
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pVlcTable->kpTotalZerosTable[0][3] = g_kuiTotalZerosTable3;
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pVlcTable->kpTotalZerosTable[0][4] = g_kuiTotalZerosTable4;
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pVlcTable->kpTotalZerosTable[0][5] = g_kuiTotalZerosTable5;
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pVlcTable->kpTotalZerosTable[0][6] = g_kuiTotalZerosTable6;
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pVlcTable->kpTotalZerosTable[0][7] = g_kuiTotalZerosTable7;
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pVlcTable->kpTotalZerosTable[0][8] = g_kuiTotalZerosTable8;
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pVlcTable->kpTotalZerosTable[0][9] = g_kuiTotalZerosTable9;
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pVlcTable->kpTotalZerosTable[0][10] = g_kuiTotalZerosTable10;
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pVlcTable->kpTotalZerosTable[0][11] = g_kuiTotalZerosTable11;
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pVlcTable->kpTotalZerosTable[0][12] = g_kuiTotalZerosTable12;
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pVlcTable->kpTotalZerosTable[0][13] = g_kuiTotalZerosTable13;
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pVlcTable->kpTotalZerosTable[0][14] = g_kuiTotalZerosTable14;
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pVlcTable->kpTotalZerosTable[1][0] = g_kuiTotalZerosChromaTable0;
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pVlcTable->kpTotalZerosTable[1][1] = g_kuiTotalZerosChromaTable1;
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pVlcTable->kpTotalZerosTable[1][2] = g_kuiTotalZerosChromaTable2;
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}
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} // namespace WelsDec
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#endif//WELS_VLC_DECODER_H__
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