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media/libopus/silk/tables_other.c@6474c204b198 (annotated)

media/libopus/silk/tables_other.c

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 /***********************************************************************
michael@0 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
michael@0 3 Redistribution and use in source and binary forms, with or without
michael@0 4 modification, are permitted provided that the following conditions
michael@0 5 are met:
michael@0 6 - Redistributions of source code must retain the above copyright notice,
michael@0 7 this list of conditions and the following disclaimer.
michael@0 8 - Redistributions in binary form must reproduce the above copyright
michael@0 9 notice, this list of conditions and the following disclaimer in the
michael@0 10 documentation and/or other materials provided with the distribution.
michael@0 11 - Neither the name of Internet Society, IETF or IETF Trust, nor the
michael@0 12 names of specific contributors, may be used to endorse or promote
michael@0 13 products derived from this software without specific prior written
michael@0 14 permission.
michael@0 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
michael@0 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
michael@0 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
michael@0 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
michael@0 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
michael@0 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
michael@0 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
michael@0 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
michael@0 23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
michael@0 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
michael@0 25 POSSIBILITY OF SUCH DAMAGE.
michael@0 26 ***********************************************************************/
michael@0 27
michael@0 28 #ifdef HAVE_CONFIG_H
michael@0 29 #include "config.h"
michael@0 30 #endif
michael@0 31
michael@0 32 #include "structs.h"
michael@0 33 #include "define.h"
michael@0 34 #include "tables.h"
michael@0 35
michael@0 36 #ifdef __cplusplus
michael@0 37 extern "C"
michael@0 38 {
michael@0 39 #endif
michael@0 40
michael@0 41 /* Piece-wise linear mapping from bitrate in kbps to coding quality in dB SNR */
michael@0 42 const opus_int32 silk_TargetRate_table_NB[ TARGET_RATE_TAB_SZ ] = {
michael@0 43 0, 8000, 9400, 11500, 13500, 17500, 25000, MAX_TARGET_RATE_BPS
michael@0 44 };
michael@0 45 const opus_int32 silk_TargetRate_table_MB[ TARGET_RATE_TAB_SZ ] = {
michael@0 46 0, 9000, 12000, 14500, 18500, 24500, 35500, MAX_TARGET_RATE_BPS
michael@0 47 };
michael@0 48 const opus_int32 silk_TargetRate_table_WB[ TARGET_RATE_TAB_SZ ] = {
michael@0 49 0, 10500, 14000, 17000, 21500, 28500, 42000, MAX_TARGET_RATE_BPS
michael@0 50 };
michael@0 51 const opus_int16 silk_SNR_table_Q1[ TARGET_RATE_TAB_SZ ] = {
michael@0 52 18, 29, 38, 40, 46, 52, 62, 84
michael@0 53 };
michael@0 54
michael@0 55 /* Tables for stereo predictor coding */
michael@0 56 const opus_int16 silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ] = {
michael@0 57 -13732, -10050, -8266, -7526, -6500, -5000, -2950, -820,
michael@0 58 820, 2950, 5000, 6500, 7526, 8266, 10050, 13732
michael@0 59 };
michael@0 60 const opus_uint8 silk_stereo_pred_joint_iCDF[ 25 ] = {
michael@0 61 249, 247, 246, 245, 244,
michael@0 62 234, 210, 202, 201, 200,
michael@0 63 197, 174, 82, 59, 56,
michael@0 64 55, 54, 46, 22, 12,
michael@0 65 11, 10, 9, 7, 0
michael@0 66 };
michael@0 67 const opus_uint8 silk_stereo_only_code_mid_iCDF[ 2 ] = { 64, 0 };
michael@0 68
michael@0 69 /* Tables for LBRR flags */
michael@0 70 static const opus_uint8 silk_LBRR_flags_2_iCDF[ 3 ] = { 203, 150, 0 };
michael@0 71 static const opus_uint8 silk_LBRR_flags_3_iCDF[ 7 ] = { 215, 195, 166, 125, 110, 82, 0 };
michael@0 72 const opus_uint8 * const silk_LBRR_flags_iCDF_ptr[ 2 ] = {
michael@0 73 silk_LBRR_flags_2_iCDF,
michael@0 74 silk_LBRR_flags_3_iCDF
michael@0 75 };
michael@0 76
michael@0 77 /* Table for LSB coding */
michael@0 78 const opus_uint8 silk_lsb_iCDF[ 2 ] = { 120, 0 };
michael@0 79
michael@0 80 /* Tables for LTPScale */
michael@0 81 const opus_uint8 silk_LTPscale_iCDF[ 3 ] = { 128, 64, 0 };
michael@0 82
michael@0 83 /* Tables for signal type and offset coding */
michael@0 84 const opus_uint8 silk_type_offset_VAD_iCDF[ 4 ] = {
michael@0 85 232, 158, 10, 0
michael@0 86 };
michael@0 87 const opus_uint8 silk_type_offset_no_VAD_iCDF[ 2 ] = {
michael@0 88 230, 0
michael@0 89 };
michael@0 90
michael@0 91 /* Tables for NLSF interpolation factor */
michael@0 92 const opus_uint8 silk_NLSF_interpolation_factor_iCDF[ 5 ] = { 243, 221, 192, 181, 0 };
michael@0 93
michael@0 94 /* Quantization offsets */
michael@0 95 const opus_int16 silk_Quantization_Offsets_Q10[ 2 ][ 2 ] = {
michael@0 96 { OFFSET_UVL_Q10, OFFSET_UVH_Q10 }, { OFFSET_VL_Q10, OFFSET_VH_Q10 }
michael@0 97 };
michael@0 98
michael@0 99 /* Table for LTPScale */
michael@0 100 const opus_int16 silk_LTPScales_table_Q14[ 3 ] = { 15565, 12288, 8192 };
michael@0 101
michael@0 102 /* Uniform entropy tables */
michael@0 103 const opus_uint8 silk_uniform3_iCDF[ 3 ] = { 171, 85, 0 };
michael@0 104 const opus_uint8 silk_uniform4_iCDF[ 4 ] = { 192, 128, 64, 0 };
michael@0 105 const opus_uint8 silk_uniform5_iCDF[ 5 ] = { 205, 154, 102, 51, 0 };
michael@0 106 const opus_uint8 silk_uniform6_iCDF[ 6 ] = { 213, 171, 128, 85, 43, 0 };
michael@0 107 const opus_uint8 silk_uniform8_iCDF[ 8 ] = { 224, 192, 160, 128, 96, 64, 32, 0 };
michael@0 108
michael@0 109 const opus_uint8 silk_NLSF_EXT_iCDF[ 7 ] = { 100, 40, 16, 7, 3, 1, 0 };
michael@0 110
michael@0 111 /* Elliptic/Cauer filters designed with 0.1 dB passband ripple,
michael@0 112 80 dB minimum stopband attenuation, and
michael@0 113 [0.95 : 0.15 : 0.35] normalized cut off frequencies. */
michael@0 114
michael@0 115 /* Interpolation points for filter coefficients used in the bandwidth transition smoother */
michael@0 116 const opus_int32 silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ] =
michael@0 117 {
michael@0 118 { 250767114, 501534038, 250767114 },
michael@0 119 { 209867381, 419732057, 209867381 },
michael@0 120 { 170987846, 341967853, 170987846 },
michael@0 121 { 131531482, 263046905, 131531482 },
michael@0 122 { 89306658, 178584282, 89306658 }
michael@0 123 };
michael@0 124
michael@0 125 /* Interpolation points for filter coefficients used in the bandwidth transition smoother */
michael@0 126 const opus_int32 silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ] =
michael@0 127 {
michael@0 128 { 506393414, 239854379 },
michael@0 129 { 411067935, 169683996 },
michael@0 130 { 306733530, 116694253 },
michael@0 131 { 185807084, 77959395 },
michael@0 132 { 35497197, 57401098 }
michael@0 133 };
michael@0 134
michael@0 135 #ifdef __cplusplus
michael@0 136 }
michael@0 137 #endif
michael@0 138

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