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annotate src/opus-1.3/silk/tables_other.c @ 70:9e21af8f0420

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Opus for Windows (MSVC)
author Chris Cannam
date Fri, 25 Jan 2019 12:15:58 +0000
parents 7aeed7906520
children
rev   line source
Chris@69 1 /***********************************************************************
Chris@69 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
Chris@69 3 Redistribution and use in source and binary forms, with or without
Chris@69 4 modification, are permitted provided that the following conditions
Chris@69 5 are met:
Chris@69 6 - Redistributions of source code must retain the above copyright notice,
Chris@69 7 this list of conditions and the following disclaimer.
Chris@69 8 - Redistributions in binary form must reproduce the above copyright
Chris@69 9 notice, this list of conditions and the following disclaimer in the
Chris@69 10 documentation and/or other materials provided with the distribution.
Chris@69 11 - Neither the name of Internet Society, IETF or IETF Trust, nor the
Chris@69 12 names of specific contributors, may be used to endorse or promote
Chris@69 13 products derived from this software without specific prior written
Chris@69 14 permission.
Chris@69 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Chris@69 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Chris@69 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
Chris@69 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
Chris@69 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
Chris@69 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
Chris@69 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
Chris@69 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
Chris@69 23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
Chris@69 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
Chris@69 25 POSSIBILITY OF SUCH DAMAGE.
Chris@69 26 ***********************************************************************/
Chris@69 27
Chris@69 28 #ifdef HAVE_CONFIG_H
Chris@69 29 #include "config.h"
Chris@69 30 #endif
Chris@69 31
Chris@69 32 #include "structs.h"
Chris@69 33 #include "define.h"
Chris@69 34 #include "tables.h"
Chris@69 35
Chris@69 36 #ifdef __cplusplus
Chris@69 37 extern "C"
Chris@69 38 {
Chris@69 39 #endif
Chris@69 40
Chris@69 41 /* Tables for stereo predictor coding */
Chris@69 42 const opus_int16 silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ] = {
Chris@69 43 -13732, -10050, -8266, -7526, -6500, -5000, -2950, -820,
Chris@69 44 820, 2950, 5000, 6500, 7526, 8266, 10050, 13732
Chris@69 45 };
Chris@69 46 const opus_uint8 silk_stereo_pred_joint_iCDF[ 25 ] = {
Chris@69 47 249, 247, 246, 245, 244,
Chris@69 48 234, 210, 202, 201, 200,
Chris@69 49 197, 174, 82, 59, 56,
Chris@69 50 55, 54, 46, 22, 12,
Chris@69 51 11, 10, 9, 7, 0
Chris@69 52 };
Chris@69 53 const opus_uint8 silk_stereo_only_code_mid_iCDF[ 2 ] = { 64, 0 };
Chris@69 54
Chris@69 55 /* Tables for LBRR flags */
Chris@69 56 static const opus_uint8 silk_LBRR_flags_2_iCDF[ 3 ] = { 203, 150, 0 };
Chris@69 57 static const opus_uint8 silk_LBRR_flags_3_iCDF[ 7 ] = { 215, 195, 166, 125, 110, 82, 0 };
Chris@69 58 const opus_uint8 * const silk_LBRR_flags_iCDF_ptr[ 2 ] = {
Chris@69 59 silk_LBRR_flags_2_iCDF,
Chris@69 60 silk_LBRR_flags_3_iCDF
Chris@69 61 };
Chris@69 62
Chris@69 63 /* Table for LSB coding */
Chris@69 64 const opus_uint8 silk_lsb_iCDF[ 2 ] = { 120, 0 };
Chris@69 65
Chris@69 66 /* Tables for LTPScale */
Chris@69 67 const opus_uint8 silk_LTPscale_iCDF[ 3 ] = { 128, 64, 0 };
Chris@69 68
Chris@69 69 /* Tables for signal type and offset coding */
Chris@69 70 const opus_uint8 silk_type_offset_VAD_iCDF[ 4 ] = {
Chris@69 71 232, 158, 10, 0
Chris@69 72 };
Chris@69 73 const opus_uint8 silk_type_offset_no_VAD_iCDF[ 2 ] = {
Chris@69 74 230, 0
Chris@69 75 };
Chris@69 76
Chris@69 77 /* Tables for NLSF interpolation factor */
Chris@69 78 const opus_uint8 silk_NLSF_interpolation_factor_iCDF[ 5 ] = { 243, 221, 192, 181, 0 };
Chris@69 79
Chris@69 80 /* Quantization offsets */
Chris@69 81 const opus_int16 silk_Quantization_Offsets_Q10[ 2 ][ 2 ] = {
Chris@69 82 { OFFSET_UVL_Q10, OFFSET_UVH_Q10 }, { OFFSET_VL_Q10, OFFSET_VH_Q10 }
Chris@69 83 };
Chris@69 84
Chris@69 85 /* Table for LTPScale */
Chris@69 86 const opus_int16 silk_LTPScales_table_Q14[ 3 ] = { 15565, 12288, 8192 };
Chris@69 87
Chris@69 88 /* Uniform entropy tables */
Chris@69 89 const opus_uint8 silk_uniform3_iCDF[ 3 ] = { 171, 85, 0 };
Chris@69 90 const opus_uint8 silk_uniform4_iCDF[ 4 ] = { 192, 128, 64, 0 };
Chris@69 91 const opus_uint8 silk_uniform5_iCDF[ 5 ] = { 205, 154, 102, 51, 0 };
Chris@69 92 const opus_uint8 silk_uniform6_iCDF[ 6 ] = { 213, 171, 128, 85, 43, 0 };
Chris@69 93 const opus_uint8 silk_uniform8_iCDF[ 8 ] = { 224, 192, 160, 128, 96, 64, 32, 0 };
Chris@69 94
Chris@69 95 const opus_uint8 silk_NLSF_EXT_iCDF[ 7 ] = { 100, 40, 16, 7, 3, 1, 0 };
Chris@69 96
Chris@69 97 /* Elliptic/Cauer filters designed with 0.1 dB passband ripple,
Chris@69 98 80 dB minimum stopband attenuation, and
Chris@69 99 [0.95 : 0.15 : 0.35] normalized cut off frequencies. */
Chris@69 100
Chris@69 101 /* Interpolation points for filter coefficients used in the bandwidth transition smoother */
Chris@69 102 const opus_int32 silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ] =
Chris@69 103 {
Chris@69 104 { 250767114, 501534038, 250767114 },
Chris@69 105 { 209867381, 419732057, 209867381 },
Chris@69 106 { 170987846, 341967853, 170987846 },
Chris@69 107 { 131531482, 263046905, 131531482 },
Chris@69 108 { 89306658, 178584282, 89306658 }
Chris@69 109 };
Chris@69 110
Chris@69 111 /* Interpolation points for filter coefficients used in the bandwidth transition smoother */
Chris@69 112 const opus_int32 silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ] =
Chris@69 113 {
Chris@69 114 { 506393414, 239854379 },
Chris@69 115 { 411067935, 169683996 },
Chris@69 116 { 306733530, 116694253 },
Chris@69 117 { 185807084, 77959395 },
Chris@69 118 { 35497197, 57401098 }
Chris@69 119 };
Chris@69 120
Chris@69 121 #ifdef __cplusplus
Chris@69 122 }
Chris@69 123 #endif
Chris@69 124