umc_base_bitstream.cpp

audio-video-codecs.rar语音编解码器

//
//               INTEL CORPORATION PROPRIETARY INFORMATION
//  This software is supplied under the terms of a license agreement or
//  nondisclosure agreement with Intel Corporation and may not be copied
//  or disclosed except in accordance with the terms of that agreement.
//        Copyright (c) 2004 - 2007 Intel Corporation. All Rights Reserved.
//

#include <string.h>
#include "umc_base_bitstream.h"
#include "umc_h264_config.h"

//#define PRINT_CABAC_RANGE
#if defined PRINT_CABAC_RANGE
Ipp32s print_cabac_range;
#endif // PRINT_CABAC_RANGE
// ---------------------------------------------------------------------------
//  CBaseBitstream::CBaseBitstream()
//      Default constructor.
// ---------------------------------------------------------------------------

namespace UMC_H264_ENCODER
{

// Range table
const Ipp8u rangeTabLPS[64][4]=
{
    { 128, 176, 208, 240},
    { 128, 167, 197, 227},
    { 128, 158, 187, 216},
    { 123, 150, 178, 205},
    { 116, 142, 169, 195},
    { 111, 135, 160, 185},
    { 105, 128, 152, 175},
    { 100, 122, 144, 166},
    {  95, 116, 137, 158},
    {  90, 110, 130, 150},
    {  85, 104, 123, 142},
    {  81,  99, 117, 135},
    {  77,  94, 111, 128},
    {  73,  89, 105, 122},
    {  69,  85, 100, 116},
    {  66,  80,  95, 110},
    {  62,  76,  90, 104},
    {  59,  72,  86,  99},
    {  56,  69,  81,  94},
    {  53,  65,  77,  89},
    {  51,  62,  73,  85},
    {  48,  59,  69,  80},
    {  46,  56,  66,  76},
    {  43,  53,  63,  72},
    {  41,  50,  59,  69},
    {  39,  48,  56,  65},
    {  37,  45,  54,  62},
    {  35,  43,  51,  59},
    {  33,  41,  48,  56},
    {  32,  39,  46,  53},
    {  30,  37,  43,  50},
    {  29,  35,  41,  48},
    {  27,  33,  39,  45},
    {  26,  31,  37,  43},
    {  24,  30,  35,  41},
    {  23,  28,  33,  39},
    {  22,  27,  32,  37},
    {  21,  26,  30,  35},
    {  20,  24,  29,  33},
    {  19,  23,  27,  31},
    {  18,  22,  26,  30},
    {  17,  21,  25,  28},
    {  16,  20,  23,  27},
    {  15,  19,  22,  25},
    {  14,  18,  21,  24},
    {  14,  17,  20,  23},
    {  13,  16,  19,  22},
    {  12,  15,  18,  21},
    {  12,  14,  17,  20},
    {  11,  14,  16,  19},
    {  11,  13,  15,  18},
    {  10,  12,  15,  17},
    {  10,  12,  14,  16},
    {   9,  11,  13,  15},
    {   9,  11,  12,  14},
    {   8,  10,  12,  14},
    {   8,   9,  11,  13},
    {   7,   9,  11,  12},
    {   7,   9,  10,  12},
    {   7,   8,  10,  11},
    {   6,   8,   9,  11},
    {   6,   7,   9,  10},
    {   6,   7,   8,   9},
    {   2,   2,   2,   2}
};

const Ipp16u transIdxMPS[64] =
{
    1,2,3,4,5,6,7,8,9,10,          // Trans
    11,12,13,14,15,16,17,18,19,20, // index
    21,22,23,24,25,26,27,28,29,30, // array.
    31,32,33,34,35,36,37,38,39,40, // Needed
    41,42,43,44,45,46,47,48,49,50, // for
    51,52,53,54,55,56,57,58,59,60, // CABAC
    61,62,62,63                    // coding.
};


const Ipp16u transIdxLPS[64] =
{
    0, 0, 1, 2, 2, 4, 4, 5, 6, 7,  // Trans
    8, 9, 9,11,11,12,13,13,15,15,  // index
    16,16,18,18,19,19,21,21,22,22, // array.
    23,24,24,25,26,26,27,27,28,29, // Needed
    29,30,30,30,31,32,32,33,33,33, // for
    34,34,35,35,35,36,36,36,37,37, // CABAC
    37,38,38,63                    // coding.
};

#define ENC_B_BITS          (10)
#define ENC_FULL_RANGE      (1 << (ENC_B_BITS-0))
#define ENC_HALF_RANGE      (1 << (ENC_B_BITS-1))
#define ENC_QUARTER_RANGE   (1 << (ENC_B_BITS-2))

typedef struct INITIALIZE_VALUES
{
    Ipp8s m;
    Ipp8s n;

} INITIALIZE_VALUES;

// See table 9-12 of H.264 standard
INITIALIZE_VALUES M_and_N_for_ctxIdx_0_10[11] =
{
    {20, -15},
    {2, 54},
    {3, 74},
    {20, -15},
    {2, 54},
    {3, 74},
    {-28, 127},
    {-23, 104},
    {-6, 53},
    {-1, 54},
    {7, 51},
};

// See table 9-17 of H.264 standard
INITIALIZE_VALUES M_and_N_for_ctxIdx_60_69[10] =
{
    {0, 41},
    {0, 63},
    {0, 63},
    {0, 63},
    {-9, 83},
    {4, 86},
    {0, 97},
    {-7, 72},
    {13, 41},
    {3, 62},
};

// See table 9-18 of H.264 standard
INITIALIZE_VALUES M_and_N_for_ctxIdx_70_104_intra[35] =
{
    {0, 11},
    {1, 55},
    {0, 69},
    {-17, 127},
    {-13, 102},
    {0, 82},
    {-7, 74},
    {-21, 107},
    {-27, 127},
    {-31, 127},
    {-24, 127},
    {-18, 95},
    {-27, 127},
    {-21, 114},
    {-30, 127},
    {-17, 123},
    {-12, 115},
    {-16, 122},
    {-11, 115},
    {-12, 63},
    {-2, 68},
    {-15, 84},
    {-13, 104},
    {-3, 70},
    {-8, 93},
    {-10, 90},
    {-30, 127},
    {-1, 74},
    {-6, 97},
    {-7, 91},
    {-20, 127},
    {-4, 56},
    {-5, 82},
    {-7, 76},
    {-22, 125},
};

// See table 9-19 of H.264 standard
INITIALIZE_VALUES M_and_N_for_ctxIdx_105_165_intra[61] =
{
    {-7, 93},
    {-11, 87},
    {-3, 77},
    {-5, 71},
    {-4, 63},
    {-4, 68},
    {-12, 84},
    {-7, 62},
    {-7, 65},
    {8, 61},
    {5, 56},
    {-2, 66},
    {1, 64},
    {0, 61},
    {-2, 78},
    {1, 50},
    {7, 52},
    {10, 35},
    {0, 44},
    {11, 38},
    {1, 45},
    {0, 46},
    {5, 44},
    {31, 17},
    {1, 51},
    {7, 50},
    {28, 19},
    {16, 33},
    {14, 62},
    {-13, 108},
    {-15, 100},
    {-13, 101},
    {-13, 91},
    {-12, 94},
    {-10, 88},
    {-16, 84},
    {-10, 86},
    {-7, 83},
    {-13, 87},
    {-19, 94},
    {1, 70},
    {0, 72},
    {-5, 74},
    {18, 59},
    {-8, 102},
    {-15, 100},
    {0, 95},
    {-4, 75},
    {2, 72},
    {-11, 75},
    {-3, 71},
    {15, 46},
    {-13, 69},
    {0, 62},
    {0, 65},
    {21, 37},
    {-15, 72},
    {9, 57},
    {16, 54},
    {0, 62},
    {12, 72},
};

// See table 9-20 of H.264 standard
INITIALIZE_VALUES M_and_N_for_ctxIdx_166_226_intra[61] =
{
    {24, 0},
    {15, 9},
    {8, 25},
    {13, 18},
    {15, 9},
    {13, 19},
    {10, 37},
    {12, 18},
    {6, 29},
    {20, 33},
    {15, 30},
    {4, 45},
    {1, 58},
    {0, 62},
    {7, 61},
    {12, 38},
    {11, 45},
    {15, 39},
    {11, 42},
    {13, 44},
    {16, 45},
    {12, 41},
    {10, 49},
    {30, 34},
    {18, 42},
    {10, 55},
    {17, 51},
    {17, 46},
    {0, 89},
    {26, -19},
    {22, -17},
    {26, -17},
    {30, -25},
    {28, -20},
    {33, -23},
    {37, -27},
    {33, -23},
    {40, -28},
    {38, -17},
    {33, -11},
    {40, -15},
    {41, -6},
    {38, 1},
    {41, 17},
    {30, -6},
    {27, 3},
    {26, 22},
    {37, -16},
    {35, -4},
    {38, -8},
    {38, -3},
    {37, 3},
    {38, 5},
    {42, 0},
    {35, 16},
    {39, 22},
    {14, 48},
    {27, 37},
    {21, 60},
    {12, 68},
    {2, 97},
};

// See table 9-21 of H.264 standard
INITIALIZE_VALUES M_and_N_for_ctxIdx_227_275_intra[49] =
{
    {-3, 71},
    {-6, 42},
    {-5, 50},
    {-3, 54},
    {-2, 62},
    {0, 58},
    {1, 63},
    {-2, 72},
    {-1, 74},
    {-9, 91},
    {-5, 67},
    {-5, 27},
    {-3, 39},
    {-2, 44},
    {0, 46},
    {-16, 64},
    {-8, 68},
    {-10, 78},
    {-6, 77},
    {-10, 86},
    {-12, 92},
    {-15, 55},
    {-10, 60},
    {-6, 62},
    {-4, 65},
    {-12, 73},
    {-8, 76},
    {-7, 80},
    {-9, 88},
    {-17, 110},
    {-11, 97},
    {-20, 84},
    {-11, 79},
    {-6, 73},
    {-4, 74},
    {-13, 86},
    {-13, 96},
    {-11, 97},
    {-19, 117},
    {-8, 78},
    {-5, 33},
    {-4, 48},
    {-2, 53},
    {-3, 62},
    {-13, 71},
    {-10, 79},
    {-12, 86},
    {-13, 90},
    {-14, 97},
};

// See table 9-22 of H.264 standard
INITIALIZE_VALUES M_and_N_for_ctxIdx_277_337_intra[61] =
{
    {-6, 93},
    {-6, 84},
    {-8, 79},
    {0, 66},
    {-1, 71},
    {0, 62},
    {-2, 60},
    {-2, 59},
    {-5, 75},
    {-3, 62},
    {-4, 58},
    {-9, 66},
    {-1, 79},
    {0, 71},
    {3, 68},
    {10, 44},
    {-7, 62},
    {15, 36},
    {14, 40},
    {16, 27},
    {12, 29},
    {1, 44},
    {20, 36},
    {18, 32},
    {5, 42},
    {1, 48},
    {10, 62},
    {17, 46},
    {9, 64},
    {-12, 104},
    {-11, 97},
    {-16, 96},
    {-7, 88},
    {-8, 85},
    {-7, 85},
    {-9, 85},
    {-13, 88},
    {4, 66},
    {-3, 77},
    {-3, 76},
    {-6, 76},
    {10, 58},
    {-1, 76},
    {-1, 83},
    {-7, 99},
    {-14, 95},
    {2, 95},
    {0, 76},
    {-5, 74},
    {0, 70},
    {-11, 75},