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annotate src/opus-1.3/silk/tables_other.c @ 83:ae30d91d2ffe

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Replace these with versions built using an older toolset (so as to avoid ABI compatibilities when linking on Ubuntu 14.04 for packaging purposes)
author Chris Cannam
date Fri, 07 Feb 2020 11:51:13 +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