gsm_ilbc_lpc10_codecs.rar_ilbc_lpc10_voip_语音压缩

/****************************************************************** iLBC Speech Coder ANSI-C Source Code constants.c Copyright (C) The Internet Society (2004). All Rights Reserved. ******************************************************************/ #include "iLBC_define.h" /* ULP bit allocation */ /* 20 ms frame */ const iLBC_ULP_Inst_t ULP_20msTbl = { /* LSF */ { {6,0,0,0,0}, {7,0,0,0,0}, {7,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}}, /* Start state location, gain and samples */ {2,0,0,0,0}, {1,0,0,0,0}, {6,0,0,0,0}, {0,1,2,0,0}, /* extra CB index and extra CB gain */ {{6,0,1,0,0}, {0,0,7,0,0}, {0,0,7,0,0}}, {{2,0,3,0,0}, {1,1,2,0,0}, {0,0,3,0,0}}, /* CB index and CB gain */ { {{7,0,1,0,0}, {0,0,7,0,0}, {0,0,7,0,0}}, {{0,0,8,0,0}, {0,0,8,0,0}, {0,0,8,0,0}}, {{0,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}}, {{0,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}}}, { {{1,2,2,0,0}, {1,1,2,0,0}, {0,0,3,0,0}}, {{1,1,3,0,0}, {0,2,2,0,0}, {0,0,3,0,0}}, {{0,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}}, {{0,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}}} }; /* 30 ms frame */ const iLBC_ULP_Inst_t ULP_30msTbl = { /* LSF */ { {6,0,0,0,0}, {7,0,0,0,0}, {7,0,0,0,0}, {6,0,0,0,0}, {7,0,0,0,0}, {7,0,0,0,0}}, /* Start state location, gain and samples */ {3,0,0,0,0}, {1,0,0,0,0}, {6,0,0,0,0}, {0,1,2,0,0}, /* extra CB index and extra CB gain */ {{4,2,1,0,0}, {0,0,7,0,0}, {0,0,7,0,0}}, {{1,1,3,0,0}, {1,1,2,0,0}, {0,0,3,0,0}}, /* CB index and CB gain */ { {{6,1,1,0,0}, {0,0,7,0,0}, {0,0,7,0,0}}, {{0,7,1,0,0}, {0,0,8,0,0}, {0,0,8,0,0}}, {{0,7,1,0,0}, {0,0,8,0,0}, {0,0,8,0,0}}, {{0,7,1,0,0}, {0,0,8,0,0}, {0,0,8,0,0}}}, { {{1,2,2,0,0}, {1,2,1,0,0}, {0,0,3,0,0}}, {{0,2,3,0,0}, {0,2,2,0,0}, {0,0,3,0,0}}, {{0,1,4,0,0}, {0,1,3,0,0}, {0,0,3,0,0}}, {{0,1,4,0,0}, {0,1,3,0,0}, {0,0,3,0,0}}} }; /* HP Filters */ float hpi_zero_coefsTbl[3] = { (float)0.92727436, (float)-1.8544941, (float)0.92727436 }; float hpi_pole_coefsTbl[3] = { (float)1.0, (float)-1.9059465, (float)0.9114024 }; float hpo_zero_coefsTbl[3] = { (float)0.93980581, (float)-1.8795834, (float)0.93980581 }; float hpo_pole_coefsTbl[3] = { (float)1.0, (float)-1.9330735, (float)0.93589199 }; /* LP Filter */ float lpFilt_coefsTbl[FILTERORDER_DS]={ (float)-0.066650, (float)0.125000, (float)0.316650, (float)0.414063, (float)0.316650, (float)0.125000, (float)-0.066650 }; /* State quantization tables */ float state_sq3Tbl[8] = { (float)-3.719849, (float)-2.177490, (float)-1.130005, (float)-0.309692, (float)0.444214, (float)1.329712, (float)2.436279, (float)3.983887 }; float state_frgqTbl[64] = { (float)1.000085, (float)1.071695, (float)1.140395, (float)1.206868, (float)1.277188, (float)1.351503, (float)1.429380, (float)1.500727, (float)1.569049, (float)1.639599, (float)1.707071, (float)1.781531, (float)1.840799, (float)1.901550, (float)1.956695, (float)2.006750, (float)2.055474, (float)2.102787, (float)2.142819, (float)2.183592, (float)2.217962, (float)2.257177, (float)2.295739, (float)2.332967, (float)2.369248, (float)2.402792, (float)2.435080, (float)2.468598, (float)2.503394, (float)2.539284, (float)2.572944, (float)2.605036, (float)2.636331, (float)2.668939, (float)2.698780, (float)2.729101, (float)2.759786, (float)2.789834, (float)2.818679, (float)2.848074, (float)2.877470, (float)2.906899, (float)2.936655, (float)2.967804, (float)3.000115, (float)3.033367, (float)3.066355, (float)3.104231, (float)3.141499, (float)3.183012, (float)3.222952, (float)3.265433, (float)3.308441, (float)3.350823, (float)3.395275, (float)3.442793, (float)3.490801, (float)3.542514, (float)3.604064, (float)3.666050, (float)3.740994, (float)3.830749, (float)3.938770, (float)4.101764 }; /* CB tables */ int search_rangeTbl[5][CB_NSTAGES]={{58,58,58}, {108,44,44}, {108,108,108}, {108,108,108}, {108,108,108}}; int stMemLTbl=85; int memLfTbl[NASUB_MAX]={147,147,147,147}; /* expansion filter(s) */ float cbfiltersTbl[CB_FILTERLEN]={ (float)-0.034180, (float)0.108887, (float)-0.184326, (float)0.806152, (float)0.713379, (float)-0.144043, (float)0.083740, (float)-0.033691 }; /* Gain Quantization */ float gain_sq3Tbl[8]={ (float)-1.000000, (float)-0.659973, (float)-0.330017, (float)0.000000, (float)0.250000, (float)0.500000, (float)0.750000, (float)1.00000}; float gain_sq4Tbl[16]={ (float)-1.049988, (float)-0.900024, (float)-0.750000, (float)-0.599976, (float)-0.450012, (float)-0.299988, (float)-0.150024, (float)0.000000, (float)0.150024, (float)0.299988, (float)0.450012, (float)0.599976, (float)0.750000, (float)0.900024, (float)1.049988, (float)1.200012}; float gain_sq5Tbl[32]={ (float)0.037476, (float)0.075012, (float)0.112488, (float)0.150024, (float)0.187500, (float)0.224976, (float)0.262512, (float)0.299988, (float)0.337524, (float)0.375000, (float)0.412476, (float)0.450012, (float)0.487488, (float)0.525024, (float)0.562500, (float)0.599976, (float)0.637512, (float)0.674988, (float)0.712524, (float)0.750000, (float)0.787476, (float)0.825012, (float)0.862488, (float)0.900024, (float)0.937500, (float)0.974976, (float)1.012512, (float)1.049988, (float)1.087524, (float)1.125000, (float)1.162476, (float)1.200012}; /* Enhancer - Upsamling a factor 4 (ENH_UPS0 = 4) */ float polyphaserTbl[ENH_UPS0*(2*ENH_FL0+1)]={ (float)0.000000, (float)0.000000, (float)0.000000, (float)1.000000, (float)0.000000, (float)0.000000, (float)0.000000, (float)0.015625, (float)-0.076904, (float)0.288330, (float)0.862061, (float)-0.106445, (float)0.018799, (float)-0.015625, (float)0.023682, (float)-0.124268, (float)0.601563, (float)0.601563, (float)-0.124268, (float)0.023682, (float)-0.023682, (float)0.018799, (float)-0.106445, (float)0.862061, (float)0.288330, (float)-0.076904, (float)0.015625, (float)-0.018799}; float enh_plocsTbl[ENH_NBLOCKS_TOT] = {(float)40.0, (float)120.0, (float)200.0, (float)280.0, (float)360.0, (float)440.0, (float)520.0, (float)600.0}; /* LPC analysis and quantization */ int dim_lsfCbTbl[LSF_NSPLIT] = {3, 3, 4}; int size_lsfCbTbl[LSF_NSPLIT] = {64,128,128}; float lsfmeanTbl[LPC_FILTERORDER] = { (float)0.281738, (float)0.445801, (float)0.663330, (float)0.962524, (float)1.251831, (float)1.533081, (float)1.850586, (float)2.137817, (float)2.481445, (float)2.777344}; float lsf_weightTbl_30ms[6] = {(float)(1.0/2.0), (float)1.0, (float)(2.0/3.0), (float)(1.0/3.0), (float)0.0, (float)0.0}; float lsf_weightTbl_20ms[4] = {(float)(3.0/4.0), (float)(2.0/4.0), (float)(1.0/4.0), (float)(0.0)}; /* Hanning LPC window */ float lpc_winTbl[BLOCKL_MAX]={ (float)0.000183, (float)0.000671, (float)0.001526, (float)0.002716, (float)0.004242, (float)0.006104, (float)0.008301, (float)0.010834, (float)0.013702, (float)0.016907, (float)0.020416, (float)0.024261, (float)0.028442, (float)0.032928, (float)0.037750, (float)0.042877, (float)0.048309, (float)0.054047, (float)0.060089, (float)0.066437, (float)0.073090, (float)0.080017, (float)0.087219, (float)0.094727, (float)0.102509, (float)0.110535, (float)0.118835, (float)0.127411, (float)0.136230, (float)0.145294, (float)0.154602, (float)0.164154, (float)0.173920, (float)0.183899, (float)0.194122, (float)0.204529, (float)0.215149, (float)0.225952, (float)0.236938, (float)0.248108, (float)0.259460, (float)0.270966, (float)0.282654, (float)0.294464, (float)0.306396, (float)0.318481, (float)0.330688, (float)0.343018, (float)0.355438, (flo