mp3audio.h

来自「ESS3890+SL原代码（1*16内存）」· C头文件 代码 · 共 1,156 行 · 第 1/5 页

    0x35d13f32
};
int tan1[16] = {
    0x00000000, 0x0d8658ba, 0x176cf5d0, 0x1fffffff, 0x28930a2f, 0x3279a745, 
    0x3fffffff, 0x576cf5d0, 0x7fffffff, 0x7fffffff, 0xa8930a30, 0xe8930a30, 
    0x00000000, 0x0d8658ba, 0x176cf5d0, 0x1fffffff
};

int tan2[16] = {
    0x40000000, 0x3279a745, 0x28930a2f, 0x20000000, 0x176cf5d0, 0x0d8658ba, 
    0x00000000, 0xe8930a30, 0xa8930a30, 0x80000000, 0x7fffffff, 0x576cf5d0, 
    0x40000000, 0x3279a745, 0x28930a2f, 0x20000000
};

int ca[16] = {
    0xffc3612f, 0xff175ee4, 0xfd60d1e5, 0xf9f27f17, 0xf45b88be, 0xebf19fb1,
    0xe1cf24b8, 0xdf128066,
    0xdf128066, 0xe1cf24b8, 0xebf19fb1, 0xf45b88be, 0xf9f27f17, 0xfd60d1e5,
    0xff175ee4, 0xffc3612f
};

int cs[16] = {
    0x3fffe34a, 0x3ffe5931, 0x3ff23f20, 0x3fb6905b, 0x3eeea054, 0x3cc6b73d,
    0x386e75fc, 0x36e12a02,
    0x36e12a02, 0x386e75fc, 0x3cc6b73d, 0x3eeea054, 0x3fb6905b, 0x3ff23f20,
    0x3ffe5931, 0x3fffe34a
};


#ifdef MPEG2_LSF
/* Used for MPEG2_LSF */
int pow1[32] = {
    0x40000000, 0x35d13f40, 0x40000000, 0x2d413cc0, 0x40000000, 0x260dfc00,
    0x40000000, 0x20000000, 0x40000000, 0x1ae89fa0, 0x40000000, 0x16a09e60,
    0x40000000, 0x1306fe00, 0x40000000, 0x10000000, 0x40000000, 0x2d413cc0,
    0x40000000, 0x20000000, 0x40000000, 0x16a09e60, 0x40000000, 0x10000000,
    0x40000000, 0x0b504f30, 0x40000000, 0x08000000, 0x40000000, 0x05a82798,
    0x40000000, 0x04000000
};

int pow2[32] = {
    0x40000000, 0x40000000, 0x35d13f40, 0x40000000, 0x2d413cc0, 0x40000000,
    0x260dfc00, 0x40000000, 0x20000000, 0x40000000, 0x1ae89fa0, 0x40000000,
    0x16a09e60, 0x40000000, 0x1306fe00, 0x40000000, 0x40000000, 0x40000000,
    0x2d413cc0, 0x40000000, 0x20000000, 0x40000000, 0x16a09e60, 0x40000000,
    0x10000000, 0x40000000, 0x0b504f30, 0x40000000, 0x08000000, 0x40000000,
    0x05a82798, 0x40000000
};
#endif MPEG2_LSF

#ifdef MP3_BLK_HUFF
unsigned char huff_sub_len[76] = {
    3,  4,  2,  4,  2,  4,  4,  4,  3,  4,  4,  1,  1,  4,  4,  1,
    1,  1,  4,  4,  1,  4,  4,  1,  1,  1,  4,  4,  1,  1,  1,  4,
    4,  1,  1,  4,  4,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
    4,  4,  1,  1,  1,  1,  1,  4,  4,  1,  1,  1,  1,  1,  1,  1,
    1,  1,  4,  3,  1,  1,  1,  1,  1,  4,  2,  4
};

unsigned char hufftab[5572] = {
    14, 12, 10, 10,  8,  8,  8,  8,238,  0,239, 16,240,  1,240, 17,
    28, 24, 22, 22, 20, 20, 18, 18, 16, 16, 16, 16, 16, 16, 16, 16,
    238,  0,240, 16,240,  1,240, 17, 10, 10,  8,  8, 12, 10,  8,  8,
    238, 32,238, 33,238, 18,239,  2,239, 34, 28, 24, 22, 22, 20, 20,
    20, 20, 18, 18, 18, 18, 16, 16, 16, 16,239,  0,239,  1,239, 17,
    240, 16, 10, 10,  8,  8, 12, 10,  8,  8,238, 32,238, 33,238, 18,
    239,  2,239, 34, 40, 24, 22, 22, 20, 20, 18, 18, 16, 16, 16, 16,
    16, 16, 16, 16,238,  0,240, 16,240,  1,240, 17, 38, 38, 38, 38,
    36, 36, 36, 36, 34, 34, 34, 34, 32, 32, 32, 32, 38, 36, 34, 34,
    32, 32, 32, 32, 30, 30, 28, 28, 26, 26, 24, 24,239, 32,239,  2,
    239, 33,239, 18,240, 34,240, 48,240,  3,240, 19,239, 49,240, 50,
    241, 35,241, 51, 46, 38, 30, 28, 26, 24, 22, 22, 20, 20, 20, 20,
    18, 18, 16, 16,240,  0,240, 16,239, 17,240,  1,241, 32,241, 33,
    241, 18, 26, 26, 26, 26, 24, 24, 24, 24, 22, 22, 22, 22, 20, 20,
    20, 20, 24, 22, 20, 20, 18, 18, 16, 16,238,  2,238, 34,238, 49,
    238, 19,239, 48,239, 50,239, 35,240,  3,240, 51, 56, 40, 24, 22,
    20, 20, 18, 18, 16, 16, 16, 16, 16, 16, 16, 16,238,  0,240, 16,
    240,  1,241, 17, 52, 52, 52, 52, 52, 52, 52, 52, 50, 50, 50, 50,
    48, 48, 48, 48, 54, 52, 50, 48, 46, 46, 44, 44, 42, 42, 40, 40,
    38, 38, 38, 38, 64, 62, 60, 58, 56, 54, 52, 50, 48, 46, 44, 44,
    42, 42, 40, 40,239, 32,239,  2,238, 33,239, 18,240, 34,240, 48,
    240, 49,240, 19,241,  3,241, 50,241, 35,241,  4,240, 64,240, 65,
    240, 20,241, 66,241, 36, 18, 16,241, 80, 18, 16,241, 81,241, 21,
    16, 14, 18, 16, 20, 18,238, 51,238, 67,238, 52,238,  5,238, 82,
    238, 37,238, 68,238, 53,  6,  4,  8,  6,238, 83,238, 84,238, 69,
    238, 85, 44, 28, 26, 24, 22, 22, 22, 22, 20, 20, 18, 18, 16, 16,
    16, 16,239,  0,240, 16,240,  1,239, 17,241, 33,241, 18, 44, 42,
    40, 38, 36, 36, 36, 36, 34, 34, 34, 34, 32, 32, 32, 32, 58, 56,
    54, 52, 50, 48, 46, 44, 42, 40, 38, 38, 36, 34, 32, 30,239, 32,
    239,  2,239, 34,241, 48,241,  3,241, 49,241, 19,241, 50,241, 35,
    241, 64,241,  4,240, 65,241, 20,241, 66,241, 36, 16, 14, 18, 16,
    241, 81,241, 21, 16, 14, 18, 16, 20, 18,238, 51,238, 80,238, 67,
    238, 52,238,  5,238, 82,238, 37,  8,  6,238, 83,  8,  6,238, 68,
    238, 53,238, 69,  4,  2,238, 84,238, 85, 94, 78, 62, 46, 30, 28,
    26, 24, 22, 22, 20, 20, 18, 18, 16, 16,240,  0,240, 16,240,  1,
    240, 17,241, 32,241, 33,241, 18, 82, 82, 82, 82, 82, 82, 82, 82,
    80, 80, 80, 80, 80, 80, 80, 80, 72, 72, 72, 72, 72, 72, 72, 72,
    70, 70, 70, 70, 68, 68, 68, 68, 62, 62, 62, 62, 60, 60, 60, 60,
    58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 56, 56, 54, 54, 52, 52,
    50, 50, 50, 50, 48, 48, 48, 48, 68, 66, 64, 62, 60, 58, 56, 54,
    52, 52, 50, 50, 48, 48, 46, 44,238,  2,238, 34,239, 48,239,  3,
    238, 49,238, 19,239, 50,239, 35,239, 65,239, 20,240, 64,240, 51,
    240, 66,240, 36,241,  4,241, 80,240, 67,240, 52,240, 81,241, 21,
    241, 82,241, 37,241, 68, 10,  8,241, 83,241, 53,  8,  6,238,  5,
    238, 84,238, 69,238, 85, 56, 40, 24, 22, 20, 20, 18, 18, 16, 16,
    16, 16, 16, 16, 16, 16,238,  0,240, 16,240,  1,241, 17, 54, 54,
    54, 54, 52, 52, 52, 52, 50, 50, 50, 50, 48, 48, 48, 48, 62, 60,
    58, 56, 54, 52, 50, 48, 46, 46, 44, 44, 42, 42, 40, 40, 78, 76,
    74, 72, 70, 68, 66, 64, 62, 60, 58, 56, 54, 52, 50, 48,239, 32,
    239,  2,239, 33,239, 18,240, 34,240, 48,240, 49,240, 19,241,  3,
    241, 50,241, 35,241, 64,241, 65,241, 20, 38, 36, 40, 38, 42, 40,
    241, 96,241, 97,241, 22, 38, 36, 40, 38, 42, 40,241,113,241, 23,
    40, 38, 42, 40, 44, 42, 46, 44, 48, 46, 50, 48, 52, 50,238,  4,
    238, 51,238, 66,238, 36,238, 80,238,  5, 42, 40,238, 81,238, 21,
    40, 38,238, 38,238, 54, 38, 36,238,  6, 38, 36,238, 98,238,112,
    36, 34,238,114,238, 39, 34, 32, 36, 34, 38, 36, 40, 38, 42, 40,
    44, 42,238, 67,238, 52,238, 82,238, 37,238, 68,238, 83,238, 53,
    238, 69,238,  7,238,100,238, 99, 24, 22,238, 70,238,115,238, 55,
    238,101,238, 86,238,116,238, 71, 12, 10, 14, 12, 16, 14,238, 84,
    238, 85,238,102,238,117,238, 87,238,118,238,103,238,119, 90, 74,
    58, 42, 40, 24, 22, 22, 20, 20, 18, 18, 16, 16, 16, 16,239,  0,
    240, 16,240,  1,240, 17, 84, 84, 84, 84, 84, 84, 84, 84, 82, 82,
    82, 82, 82, 82, 82, 82,241, 18, 74, 74, 72, 72, 70, 70, 70, 70,
    68, 68, 68, 68, 68, 68, 68, 68, 74, 72, 70, 68, 66, 66, 64, 64,
    62, 62, 62, 62, 60, 60, 60, 60, 84, 82, 80, 80, 78, 76, 74, 74,
    72, 72, 70, 68, 66, 64, 62, 60, 98, 96, 94, 92, 90, 88, 86, 84,
    82, 82, 80, 78, 76, 74, 72, 70,238, 32,238,  2,238, 33,239, 34,
    240, 48,240,  3,239, 49,239, 19,240, 50,240, 35,241, 64,241,  4,
    241, 65,241, 20,241, 66,241, 36, 54, 52,241, 80,241, 52,241, 81,
    240, 97,240, 22,241,  6,241, 38,240, 98,241, 21, 38, 36, 40, 38,
    241, 96,241, 99,241, 54,241,112,241, 23,240,113, 30, 28,241,114,
    241, 39, 28, 26, 30, 28, 32, 30, 34, 32, 36, 34,238, 51,238, 67,
    238,  5,238, 82,238, 37,238, 68,238,  7,238,100, 22, 20, 24, 22,
    238, 70,238,115,238, 55, 20, 18, 22, 20, 24, 22, 26, 24, 28, 26,
    238, 83,238, 53,238, 84,238, 69,238,101,238, 86, 18, 16,238,116,
    238, 71,238,102,238,117,238,118,238,103,238,119,238, 85,238, 87,
    124,108, 92, 76, 60, 44, 42, 40, 24, 22, 20, 20, 18, 18, 16, 16,
    240, 16,240,  1,240, 17,241,  0,118,118,118,118,118,118,118,118,
    116,116,116,116,116,116,116,116,241, 33,241, 18,102,102,102,102,
    102,102,102,102,100,100,100,100,100,100,100,100, 94, 94, 92, 92,
    90, 90, 90, 90, 88, 88, 88, 88, 88, 88, 88, 88, 86, 86, 86, 86,
    84, 84, 84, 84, 82, 82, 82, 82, 80, 80, 80, 80, 88, 88, 86, 86,
    84, 84, 82, 82, 80, 78, 76, 76, 74, 74, 72, 72, 98, 96, 94, 92,
    90, 90, 88, 88, 86, 86, 84, 82, 80, 78, 76, 74,114,112,110,108,
    106,104,102,100, 98, 96, 94, 92, 90, 88, 86, 84,238, 32,238,  2,
    238, 34,238, 49,238, 19,239, 48,240,  3,240, 64,239, 50,239, 35,
    239, 65,239, 51,240, 20,240, 66,240, 36,241,  4,241, 80,240, 67,
    240, 52,240, 81,240, 21,241, 82,241, 37,241, 83,241, 53,241, 96,
    241, 22,240, 97,240, 98,240, 38, 42, 40,241, 68,241, 84,241, 69,
    241, 99,241, 54, 34, 32,241,113,241, 23,241,100,241, 70,241,114,
    241, 39, 24, 22,241, 55,241, 86, 22, 20, 24, 22, 26, 24, 28, 26,
    238,  5,238,  6,238,112,238,  7,238, 85,238,115,238,101,238,116,
    238, 71,238,102,238,117,238, 87,238,118,  4,  2,238,103,238,119,
    72, 56, 40, 24, 22, 20, 18, 18, 16, 16, 16, 16, 16, 16, 16, 16,
    238,  0,240, 16,241,  1,241, 17, 70, 70, 70, 70, 68, 68, 68, 68,
    66, 66, 66, 66, 64, 64, 64, 64, 74, 74, 72, 70, 68, 66, 64, 64,
    62, 62, 60, 60, 58, 58, 56, 56, 90, 88, 86, 84, 82, 80, 78, 76,
    74, 72, 70, 68, 66, 64, 62, 60,106,104,102,100, 98, 96, 94, 92,
    90, 88, 86, 84, 82, 80, 78, 76,239, 32,239,  2,239, 33,239, 18,
    240, 34,240, 48,240,  3,240, 49,240, 19,241, 50,241, 35,241, 64,
    241,  4,240, 65,241, 20, 64, 62, 66, 64, 68, 66,241, 81,241, 21,
    66, 64, 68, 66, 70, 68, 72, 70, 74, 72,241,129, 74, 72, 76, 74,
    78, 76, 80, 78, 82, 80, 84, 82, 86, 84, 88, 86, 90, 88, 92, 90,
    94, 92, 96, 94, 98, 96,100, 98,102,100,104,102,106,104,108,106,
    110,108,112,110,238, 51,238, 66,238, 36,238, 80,238, 67,238, 52,
    238,  5,238, 82,238, 37, 96, 94,238, 96,238,  6,238, 97,238, 22,
    238,128,238,  8, 86, 84, 88, 86, 90, 88, 92, 90, 94, 92,238,113,
    238, 23, 92, 90,238, 24,238,130,238, 40, 88, 86, 90, 88, 92, 90,
    238,145,238, 25, 90, 88, 92, 90, 94, 92, 96, 94, 98, 96,100, 98,
    102,100,104,102,106,104,108,106,110,108,112,110,114,112,116,114,
    118,116,120,118,122,120,124,122,126,124,128,126,130,128,132,130,
    134,132,136,134,238, 68,238, 83,238, 53,238, 98,238, 38,238, 84,
    238, 69,238, 99,238, 54,238,112,238,  7,238, 85,238, 39,238, 55,
    110,108,238,114,238,132,238, 72,238,144,238,  9,102,100,104,102,
    106,104,238,131,238, 56,104,102,238,146,238, 41,102,100,104,102,
    238,147,104,102,238,160,104,102,238,161,238, 26,238,162,238, 42,
    98, 96,100, 98,102,100,104,102,238,177,238, 27,238,178,100, 98,
    102,100,104,102,106,104,108,106,110,108,112,110,114,112,116,114,
    118,116,120,118,122,120,124,122,126,124,128,126,130,128,132,130,
    134,132,136,134,138,136,140,138,142,140,144,142,238,100,238, 70,
    238,115,238,101,238, 86,238,116,238, 71,238,102,238,117,238, 87,
    238,103,238,133,238, 88,238, 57,238, 73,238,134,238,104,238, 10,
    238,149,238, 89,238,163,238, 58,238, 74,238,150,238,176,238, 11,
    94, 92,238,148, 94, 92,238,164, 94, 92,238, 43, 94, 92,238,179,
    238, 59, 92, 90, 94, 92,238,192, 94, 92,238,193,238, 28, 92, 90,
    238, 91,238,194,238, 44,238, 60, 86, 84, 88, 86, 90, 88, 92, 90,
    238,209, 92, 90, 94, 92, 96, 94, 98, 96,100, 98,102,100,104,102,
    106,104,108,106,110,108,112,110,114,112,116,114,118,116,120,118,
    122,120,124,122,126,124,128,126,130,128,132,130,238,118,238,119,
    238,135,238,120,238,105,238,165,238, 90,238,136,238,121,238,166,
    238,106,238,180,238, 12,238,152,238,137,238,181,238,182,238,107,
    238,196,238, 76,238,168,238,138,238,208,238, 13,238, 75, 84, 82,
    238,195, 84, 82, 86, 84,238,183,238, 29,238,210,238, 45, 80, 78,
    238, 61,238,198, 78, 76, 80, 78, 82, 80, 84, 82, 86, 84, 88, 86,
    238,225,238, 30, 86, 84,238,226, 86, 84, 88, 86, 90, 88,238,240,
    238,241,238, 31, 86, 84, 88, 86, 90, 88, 92, 90, 94, 92, 96, 94,
    98, 96,100, 98,102,100,104,102,106,104,108,106,110,108,112,110,
    238,151,238,167,238,122,238,153,238,197,238, 92,238,123,238,211,
    238,108,238,169,238,154,238,212,238,184,238,139,238, 77,238,199,
    238,124,238,213,238, 93,238,224,238, 14,238, 46,238,227,238,109,
    238,140,238,228,238,229,238,186, 58, 56,238,185,238, 62, 56, 54,
    238, 78, 56, 54,238,171, 56, 54,238, 15, 56, 54,238,242,238, 47,
    54, 52,238, 63, 54, 52, 56, 54, 58, 56, 60, 58, 62, 60, 64, 62,
    66, 64, 68, 66, 70, 68, 72, 70, 74, 72, 76, 74, 78, 76, 80, 78,
    238,170,238,155,238,214,238,200,238,215,238,125,238, 94,238,201,
    238,156,238,110,238,216,238,141,238,243, 56, 54,238,244,238, 79,
    238,187,238,172,238,231,238,245,238,217,238,157,238, 95,238,232,
    238,111, 36, 34, 38, 36,238,218,238,247, 36, 34, 38, 36, 40, 38,
    42, 40, 44, 42, 46, 44, 48, 46, 50, 48, 52, 50, 54, 52, 56, 54,
    238,230,238,202,238,246,238,203,238,188,238,173, 46, 44,238,142,
    46, 44,238,204,238,248,238,143,238,219,238,189,238,234,238,249,
    238,159,238,235,238,190, 28, 26,238,221,238,236, 26, 24, 28, 26,
    30, 28, 32, 30, 34, 32, 36, 34,238,126,238,127,238,158,238,174,
    238,205,238,250, 26, 24,238,220,238,206,238,251,238,191,238,222,
    238,207,238,238,238,223,238,239,238,255,  8,  6,238,233,238,175,
    238,237,  4,  2,238,253,  4,  2,238,252,238,254,168,152,136,120,
    104, 88, 72, 56, 40, 24, 22, 22, 20, 18, 16, 16,240,  0,241, 16,
    241,  1,240, 17,162,162,162,162,162,162,162,162,160,160,160,160,
    160,160,160,160,150,150,150,150,150,150,150,150,148,148,148,148,
    148,148,148,148,140,140,140,140,138,138,138,138,136,136,136,136,
    136,136,136,136,134,134,134,134,132,132,132,132,130,130,128,128,
    126,126,126,126,132,132,130,130,128,128,126,126,124,124,124,124,
    122,122,120,120,136,136,134,132,130,130,128,128,126,126,124,124,
    122,120,118,118,152,150,148,146,144,142,140,138,136,134,132,130,
    128,126,124,122,168,166,164,162,160,158,156,154,152,150,148,146,
    144,142,140,138,184,182,180,178,176,174,172,170,168,166,164,162,
    160,158,156,154,200,198,196,194,192,190,188,186,184,182,180,178,
    176,174,172,170,238, 32,238,  2,238, 33,238, 18,238, 34,239, 48,
    239, 49,239, 19,240,  3,240, 64,239, 50,239, 35,240,  4,240, 20,
    239, 65,240, 51,240, 66,240, 36,240, 67,240, 52,241, 80,241,  5,
    240, 81,240, 21,240, 82,240, 37,241, 68,241, 83,240, 97,241, 53,
    128,126,241, 22,241, 98,241, 38,241, 84,241, 69,241, 99,241, 54,