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297 lines
7.3 KiB
C
297 lines
7.3 KiB
C
/***********************************************************************
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Copyright (c) 2006-2011, Skype Limited. All rights reserved.
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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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- Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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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 the
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documentation and/or other materials provided with the distribution.
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- Neither the name of Internet Society, IETF or IETF Trust, nor the
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names of specific contributors, may be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN 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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#ifdef OPUS_ENABLED
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#include "opus/opus_config.h"
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#endif
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#include "opus/silk/tables.h"
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const opus_uint8 silk_LTP_per_index_iCDF[3] = {
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179, 99, 0
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};
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static const opus_uint8 silk_LTP_gain_iCDF_0[8] = {
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71, 56, 43, 30, 21, 12, 6, 0
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};
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static const opus_uint8 silk_LTP_gain_iCDF_1[16] = {
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199, 165, 144, 124, 109, 96, 84, 71,
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61, 51, 42, 32, 23, 15, 8, 0
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};
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static const opus_uint8 silk_LTP_gain_iCDF_2[32] = {
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241, 225, 211, 199, 187, 175, 164, 153,
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142, 132, 123, 114, 105, 96, 88, 80,
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72, 64, 57, 50, 44, 38, 33, 29,
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24, 20, 16, 12, 9, 5, 2, 0
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};
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const opus_int16 silk_LTP_gain_middle_avg_RD_Q14 = 12304;
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static const opus_uint8 silk_LTP_gain_BITS_Q5_0[8] = {
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15, 131, 138, 138, 155, 155, 173, 173
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};
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static const opus_uint8 silk_LTP_gain_BITS_Q5_1[16] = {
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69, 93, 115, 118, 131, 138, 141, 138,
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150, 150, 155, 150, 155, 160, 166, 160
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};
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static const opus_uint8 silk_LTP_gain_BITS_Q5_2[32] = {
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131, 128, 134, 141, 141, 141, 145, 145,
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145, 150, 155, 155, 155, 155, 160, 160,
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160, 160, 166, 166, 173, 173, 182, 192,
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182, 192, 192, 192, 205, 192, 205, 224
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};
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const opus_uint8 * const silk_LTP_gain_iCDF_ptrs[NB_LTP_CBKS] = {
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silk_LTP_gain_iCDF_0,
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silk_LTP_gain_iCDF_1,
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silk_LTP_gain_iCDF_2
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};
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const opus_uint8 * const silk_LTP_gain_BITS_Q5_ptrs[NB_LTP_CBKS] = {
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silk_LTP_gain_BITS_Q5_0,
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silk_LTP_gain_BITS_Q5_1,
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silk_LTP_gain_BITS_Q5_2
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};
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static const opus_int8 silk_LTP_gain_vq_0[8][5] =
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{
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{
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4, 6, 24, 7, 5
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},
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{
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0, 0, 2, 0, 0
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},
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{
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12, 28, 41, 13, -4
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},
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{
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-9, 15, 42, 25, 14
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},
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{
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1, -2, 62, 41, -9
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},
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{
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-10, 37, 65, -4, 3
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},
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{
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-6, 4, 66, 7, -8
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},
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{
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16, 14, 38, -3, 33
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}
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};
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static const opus_int8 silk_LTP_gain_vq_1[16][5] =
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{
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{
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13, 22, 39, 23, 12
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},
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{
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-1, 36, 64, 27, -6
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},
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{
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-7, 10, 55, 43, 17
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},
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{
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1, 1, 8, 1, 1
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},
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{
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6, -11, 74, 53, -9
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},
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{
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-12, 55, 76, -12, 8
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},
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{
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-3, 3, 93, 27, -4
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},
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{
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26, 39, 59, 3, -8
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},
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{
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2, 0, 77, 11, 9
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},
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{
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-8, 22, 44, -6, 7
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},
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{
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40, 9, 26, 3, 9
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},
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{
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-7, 20, 101, -7, 4
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},
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{
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3, -8, 42, 26, 0
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},
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{
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-15, 33, 68, 2, 23
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},
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{
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-2, 55, 46, -2, 15
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},
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{
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3, -1, 21, 16, 41
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}
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};
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static const opus_int8 silk_LTP_gain_vq_2[32][5] =
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{
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{
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-6, 27, 61, 39, 5
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},
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{
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-11, 42, 88, 4, 1
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},
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{
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-2, 60, 65, 6, -4
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},
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{
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-1, -5, 73, 56, 1
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},
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{
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-9, 19, 94, 29, -9
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},
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{
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0, 12, 99, 6, 4
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},
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{
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8, -19, 102, 46, -13
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},
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{
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3, 2, 13, 3, 2
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},
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{
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9, -21, 84, 72, -18
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},
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{
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-11, 46, 104, -22, 8
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},
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{
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18, 38, 48, 23, 0
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},
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{
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-16, 70, 83, -21, 11
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},
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{
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5, -11, 117, 22, -8
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},
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{
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-6, 23, 117, -12, 3
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},
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{
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3, -8, 95, 28, 4
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},
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{
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-10, 15, 77, 60, -15
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},
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{
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-1, 4, 124, 2, -4
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},
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{
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3, 38, 84, 24, -25
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},
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{
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2, 13, 42, 13, 31
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},
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{
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21, -4, 56, 46, -1
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},
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{
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-1, 35, 79, -13, 19
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},
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{
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-7, 65, 88, -9, -14
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},
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{
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20, 4, 81, 49, -29
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},
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{
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20, 0, 75, 3, -17
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},
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{
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5, -9, 44, 92, -8
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},
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{
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1, -3, 22, 69, 31
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},
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{
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-6, 95, 41, -12, 5
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},
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{
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39, 67, 16, -4, 1
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},
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{
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0, -6, 120, 55, -36
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},
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{
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-13, 44, 122, 4, -24
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},
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{
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81, 5, 11, 3, 7
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},
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{
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2, 0, 9, 10, 88
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}
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};
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const opus_int8 * const silk_LTP_vq_ptrs_Q7[NB_LTP_CBKS] = {
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(opus_int8 *)&silk_LTP_gain_vq_0[0][0],
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(opus_int8 *)&silk_LTP_gain_vq_1[0][0],
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(opus_int8 *)&silk_LTP_gain_vq_2[0][0]
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};
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/* Maximum frequency-dependent response of the pitch taps above,
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computed as max(abs(freqz(taps))) */
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static const opus_uint8 silk_LTP_gain_vq_0_gain[8] = {
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46, 2, 90, 87, 93, 91, 82, 98
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};
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static const opus_uint8 silk_LTP_gain_vq_1_gain[16] = {
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109, 120, 118, 12, 113, 115, 117, 119,
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99, 59, 87, 111, 63, 111, 112, 80
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};
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static const opus_uint8 silk_LTP_gain_vq_2_gain[32] = {
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126, 124, 125, 124, 129, 121, 126, 23,
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132, 127, 127, 127, 126, 127, 122, 133,
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130, 134, 101, 118, 119, 145, 126, 86,
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124, 120, 123, 119, 170, 173, 107, 109
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};
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const opus_uint8 * const silk_LTP_vq_gain_ptrs_Q7[NB_LTP_CBKS] = {
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&silk_LTP_gain_vq_0_gain[0],
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&silk_LTP_gain_vq_1_gain[0],
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&silk_LTP_gain_vq_2_gain[0]
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};
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const opus_int8 silk_LTP_vq_sizes[NB_LTP_CBKS] = {
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8, 16, 32
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};
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