1/*********************************************************************** 2Copyright (c) 2006-2011, Skype Limited. All rights reserved. 3Redistribution and use in source and binary forms, with or without 4modification, are permitted provided that the following conditions 5are met: 6- Redistributions of source code must retain the above copyright notice, 7this list of conditions and the following disclaimer. 8- Redistributions in binary form must reproduce the above copyright 9notice, this list of conditions and the following disclaimer in the 10documentation and/or other materials provided with the distribution. 11- Neither the name of Internet Society, IETF or IETF Trust, nor the 12names of specific contributors, may be used to endorse or promote 13products derived from this software without specific prior written 14permission. 15THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 19LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25POSSIBILITY OF SUCH DAMAGE. 26***********************************************************************/ 27 28#ifdef HAVE_CONFIG_H 29#include "config.h" 30#endif 31 32#include "tables.h" 33 34const opus_uint8 silk_LTP_per_index_iCDF[3] = { 35 179, 99, 0 36}; 37 38static const opus_uint8 silk_LTP_gain_iCDF_0[8] = { 39 71, 56, 43, 30, 21, 12, 6, 0 40}; 41 42static const opus_uint8 silk_LTP_gain_iCDF_1[16] = { 43 199, 165, 144, 124, 109, 96, 84, 71, 44 61, 51, 42, 32, 23, 15, 8, 0 45}; 46 47static const opus_uint8 silk_LTP_gain_iCDF_2[32] = { 48 241, 225, 211, 199, 187, 175, 164, 153, 49 142, 132, 123, 114, 105, 96, 88, 80, 50 72, 64, 57, 50, 44, 38, 33, 29, 51 24, 20, 16, 12, 9, 5, 2, 0 52}; 53 54const opus_int16 silk_LTP_gain_middle_avg_RD_Q14 = 12304; 55 56static const opus_uint8 silk_LTP_gain_BITS_Q5_0[8] = { 57 15, 131, 138, 138, 155, 155, 173, 173 58}; 59 60static const opus_uint8 silk_LTP_gain_BITS_Q5_1[16] = { 61 69, 93, 115, 118, 131, 138, 141, 138, 62 150, 150, 155, 150, 155, 160, 166, 160 63}; 64 65static const opus_uint8 silk_LTP_gain_BITS_Q5_2[32] = { 66 131, 128, 134, 141, 141, 141, 145, 145, 67 145, 150, 155, 155, 155, 155, 160, 160, 68 160, 160, 166, 166, 173, 173, 182, 192, 69 182, 192, 192, 192, 205, 192, 205, 224 70}; 71 72const opus_uint8 * const silk_LTP_gain_iCDF_ptrs[NB_LTP_CBKS] = { 73 silk_LTP_gain_iCDF_0, 74 silk_LTP_gain_iCDF_1, 75 silk_LTP_gain_iCDF_2 76}; 77 78const opus_uint8 * const silk_LTP_gain_BITS_Q5_ptrs[NB_LTP_CBKS] = { 79 silk_LTP_gain_BITS_Q5_0, 80 silk_LTP_gain_BITS_Q5_1, 81 silk_LTP_gain_BITS_Q5_2 82}; 83 84static const opus_int8 silk_LTP_gain_vq_0[8][5] = 85{ 86{ 87 4, 6, 24, 7, 5 88}, 89{ 90 0, 0, 2, 0, 0 91}, 92{ 93 12, 28, 41, 13, -4 94}, 95{ 96 -9, 15, 42, 25, 14 97}, 98{ 99 1, -2, 62, 41, -9 100}, 101{ 102 -10, 37, 65, -4, 3 103}, 104{ 105 -6, 4, 66, 7, -8 106}, 107{ 108 16, 14, 38, -3, 33 109} 110}; 111 112static const opus_int8 silk_LTP_gain_vq_1[16][5] = 113{ 114{ 115 13, 22, 39, 23, 12 116}, 117{ 118 -1, 36, 64, 27, -6 119}, 120{ 121 -7, 10, 55, 43, 17 122}, 123{ 124 1, 1, 8, 1, 1 125}, 126{ 127 6, -11, 74, 53, -9 128}, 129{ 130 -12, 55, 76, -12, 8 131}, 132{ 133 -3, 3, 93, 27, -4 134}, 135{ 136 26, 39, 59, 3, -8 137}, 138{ 139 2, 0, 77, 11, 9 140}, 141{ 142 -8, 22, 44, -6, 7 143}, 144{ 145 40, 9, 26, 3, 9 146}, 147{ 148 -7, 20, 101, -7, 4 149}, 150{ 151 3, -8, 42, 26, 0 152}, 153{ 154 -15, 33, 68, 2, 23 155}, 156{ 157 -2, 55, 46, -2, 15 158}, 159{ 160 3, -1, 21, 16, 41 161} 162}; 163 164static const opus_int8 silk_LTP_gain_vq_2[32][5] = 165{ 166{ 167 -6, 27, 61, 39, 5 168}, 169{ 170 -11, 42, 88, 4, 1 171}, 172{ 173 -2, 60, 65, 6, -4 174}, 175{ 176 -1, -5, 73, 56, 1 177}, 178{ 179 -9, 19, 94, 29, -9 180}, 181{ 182 0, 12, 99, 6, 4 183}, 184{ 185 8, -19, 102, 46, -13 186}, 187{ 188 3, 2, 13, 3, 2 189}, 190{ 191 9, -21, 84, 72, -18 192}, 193{ 194 -11, 46, 104, -22, 8 195}, 196{ 197 18, 38, 48, 23, 0 198}, 199{ 200 -16, 70, 83, -21, 11 201}, 202{ 203 5, -11, 117, 22, -8 204}, 205{ 206 -6, 23, 117, -12, 3 207}, 208{ 209 3, -8, 95, 28, 4 210}, 211{ 212 -10, 15, 77, 60, -15 213}, 214{ 215 -1, 4, 124, 2, -4 216}, 217{ 218 3, 38, 84, 24, -25 219}, 220{ 221 2, 13, 42, 13, 31 222}, 223{ 224 21, -4, 56, 46, -1 225}, 226{ 227 -1, 35, 79, -13, 19 228}, 229{ 230 -7, 65, 88, -9, -14 231}, 232{ 233 20, 4, 81, 49, -29 234}, 235{ 236 20, 0, 75, 3, -17 237}, 238{ 239 5, -9, 44, 92, -8 240}, 241{ 242 1, -3, 22, 69, 31 243}, 244{ 245 -6, 95, 41, -12, 5 246}, 247{ 248 39, 67, 16, -4, 1 249}, 250{ 251 0, -6, 120, 55, -36 252}, 253{ 254 -13, 44, 122, 4, -24 255}, 256{ 257 81, 5, 11, 3, 7 258}, 259{ 260 2, 0, 9, 10, 88 261} 262}; 263 264const opus_int8 * const silk_LTP_vq_ptrs_Q7[NB_LTP_CBKS] = { 265 (opus_int8 *)&silk_LTP_gain_vq_0[0][0], 266 (opus_int8 *)&silk_LTP_gain_vq_1[0][0], 267 (opus_int8 *)&silk_LTP_gain_vq_2[0][0] 268}; 269 270/* Maximum frequency-dependent response of the pitch taps above, 271 computed as max(abs(freqz(taps))) */ 272static const opus_uint8 silk_LTP_gain_vq_0_gain[8] = { 273 46, 2, 90, 87, 93, 91, 82, 98 274}; 275 276static const opus_uint8 silk_LTP_gain_vq_1_gain[16] = { 277 109, 120, 118, 12, 113, 115, 117, 119, 278 99, 59, 87, 111, 63, 111, 112, 80 279}; 280 281static const opus_uint8 silk_LTP_gain_vq_2_gain[32] = { 282 126, 124, 125, 124, 129, 121, 126, 23, 283 132, 127, 127, 127, 126, 127, 122, 133, 284 130, 134, 101, 118, 119, 145, 126, 86, 285 124, 120, 123, 119, 170, 173, 107, 109 286}; 287 288const opus_uint8 * const silk_LTP_vq_gain_ptrs_Q7[NB_LTP_CBKS] = { 289 &silk_LTP_gain_vq_0_gain[0], 290 &silk_LTP_gain_vq_1_gain[0], 291 &silk_LTP_gain_vq_2_gain[0] 292}; 293 294const opus_int8 silk_LTP_vq_sizes[NB_LTP_CBKS] = { 295 8, 16, 32 296}; 297