1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libopus/silk/tables_other.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,138 @@
1.4 +/***********************************************************************
1.5 +Copyright (c) 2006-2011, Skype Limited. All rights reserved.
1.6 +Redistribution and use in source and binary forms, with or without
1.7 +modification, are permitted provided that the following conditions
1.8 +are met:
1.9 +- Redistributions of source code must retain the above copyright notice,
1.10 +this list of conditions and the following disclaimer.
1.11 +- Redistributions in binary form must reproduce the above copyright
1.12 +notice, this list of conditions and the following disclaimer in the
1.13 +documentation and/or other materials provided with the distribution.
1.14 +- Neither the name of Internet Society, IETF or IETF Trust, nor the
1.15 +names of specific contributors, may be used to endorse or promote
1.16 +products derived from this software without specific prior written
1.17 +permission.
1.18 +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.19 +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.20 +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.21 +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
1.22 +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.23 +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.24 +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.25 +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.26 +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.27 +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.28 +POSSIBILITY OF SUCH DAMAGE.
1.29 +***********************************************************************/
1.30 +
1.31 +#ifdef HAVE_CONFIG_H
1.32 +#include "config.h"
1.33 +#endif
1.34 +
1.35 +#include "structs.h"
1.36 +#include "define.h"
1.37 +#include "tables.h"
1.38 +
1.39 +#ifdef __cplusplus
1.40 +extern "C"
1.41 +{
1.42 +#endif
1.43 +
1.44 +/* Piece-wise linear mapping from bitrate in kbps to coding quality in dB SNR */
1.45 +const opus_int32 silk_TargetRate_table_NB[ TARGET_RATE_TAB_SZ ] = {
1.46 + 0, 8000, 9400, 11500, 13500, 17500, 25000, MAX_TARGET_RATE_BPS
1.47 +};
1.48 +const opus_int32 silk_TargetRate_table_MB[ TARGET_RATE_TAB_SZ ] = {
1.49 + 0, 9000, 12000, 14500, 18500, 24500, 35500, MAX_TARGET_RATE_BPS
1.50 +};
1.51 +const opus_int32 silk_TargetRate_table_WB[ TARGET_RATE_TAB_SZ ] = {
1.52 + 0, 10500, 14000, 17000, 21500, 28500, 42000, MAX_TARGET_RATE_BPS
1.53 +};
1.54 +const opus_int16 silk_SNR_table_Q1[ TARGET_RATE_TAB_SZ ] = {
1.55 + 18, 29, 38, 40, 46, 52, 62, 84
1.56 +};
1.57 +
1.58 +/* Tables for stereo predictor coding */
1.59 +const opus_int16 silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ] = {
1.60 + -13732, -10050, -8266, -7526, -6500, -5000, -2950, -820,
1.61 + 820, 2950, 5000, 6500, 7526, 8266, 10050, 13732
1.62 +};
1.63 +const opus_uint8 silk_stereo_pred_joint_iCDF[ 25 ] = {
1.64 + 249, 247, 246, 245, 244,
1.65 + 234, 210, 202, 201, 200,
1.66 + 197, 174, 82, 59, 56,
1.67 + 55, 54, 46, 22, 12,
1.68 + 11, 10, 9, 7, 0
1.69 +};
1.70 +const opus_uint8 silk_stereo_only_code_mid_iCDF[ 2 ] = { 64, 0 };
1.71 +
1.72 +/* Tables for LBRR flags */
1.73 +static const opus_uint8 silk_LBRR_flags_2_iCDF[ 3 ] = { 203, 150, 0 };
1.74 +static const opus_uint8 silk_LBRR_flags_3_iCDF[ 7 ] = { 215, 195, 166, 125, 110, 82, 0 };
1.75 +const opus_uint8 * const silk_LBRR_flags_iCDF_ptr[ 2 ] = {
1.76 + silk_LBRR_flags_2_iCDF,
1.77 + silk_LBRR_flags_3_iCDF
1.78 +};
1.79 +
1.80 +/* Table for LSB coding */
1.81 +const opus_uint8 silk_lsb_iCDF[ 2 ] = { 120, 0 };
1.82 +
1.83 +/* Tables for LTPScale */
1.84 +const opus_uint8 silk_LTPscale_iCDF[ 3 ] = { 128, 64, 0 };
1.85 +
1.86 +/* Tables for signal type and offset coding */
1.87 +const opus_uint8 silk_type_offset_VAD_iCDF[ 4 ] = {
1.88 + 232, 158, 10, 0
1.89 +};
1.90 +const opus_uint8 silk_type_offset_no_VAD_iCDF[ 2 ] = {
1.91 + 230, 0
1.92 +};
1.93 +
1.94 +/* Tables for NLSF interpolation factor */
1.95 +const opus_uint8 silk_NLSF_interpolation_factor_iCDF[ 5 ] = { 243, 221, 192, 181, 0 };
1.96 +
1.97 +/* Quantization offsets */
1.98 +const opus_int16 silk_Quantization_Offsets_Q10[ 2 ][ 2 ] = {
1.99 + { OFFSET_UVL_Q10, OFFSET_UVH_Q10 }, { OFFSET_VL_Q10, OFFSET_VH_Q10 }
1.100 +};
1.101 +
1.102 +/* Table for LTPScale */
1.103 +const opus_int16 silk_LTPScales_table_Q14[ 3 ] = { 15565, 12288, 8192 };
1.104 +
1.105 +/* Uniform entropy tables */
1.106 +const opus_uint8 silk_uniform3_iCDF[ 3 ] = { 171, 85, 0 };
1.107 +const opus_uint8 silk_uniform4_iCDF[ 4 ] = { 192, 128, 64, 0 };
1.108 +const opus_uint8 silk_uniform5_iCDF[ 5 ] = { 205, 154, 102, 51, 0 };
1.109 +const opus_uint8 silk_uniform6_iCDF[ 6 ] = { 213, 171, 128, 85, 43, 0 };
1.110 +const opus_uint8 silk_uniform8_iCDF[ 8 ] = { 224, 192, 160, 128, 96, 64, 32, 0 };
1.111 +
1.112 +const opus_uint8 silk_NLSF_EXT_iCDF[ 7 ] = { 100, 40, 16, 7, 3, 1, 0 };
1.113 +
1.114 +/* Elliptic/Cauer filters designed with 0.1 dB passband ripple,
1.115 + 80 dB minimum stopband attenuation, and
1.116 + [0.95 : 0.15 : 0.35] normalized cut off frequencies. */
1.117 +
1.118 +/* Interpolation points for filter coefficients used in the bandwidth transition smoother */
1.119 +const opus_int32 silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ] =
1.120 +{
1.121 +{ 250767114, 501534038, 250767114 },
1.122 +{ 209867381, 419732057, 209867381 },
1.123 +{ 170987846, 341967853, 170987846 },
1.124 +{ 131531482, 263046905, 131531482 },
1.125 +{ 89306658, 178584282, 89306658 }
1.126 +};
1.127 +
1.128 +/* Interpolation points for filter coefficients used in the bandwidth transition smoother */
1.129 +const opus_int32 silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ] =
1.130 +{
1.131 +{ 506393414, 239854379 },
1.132 +{ 411067935, 169683996 },
1.133 +{ 306733530, 116694253 },
1.134 +{ 185807084, 77959395 },
1.135 +{ 35497197, 57401098 }
1.136 +};
1.137 +
1.138 +#ifdef __cplusplus
1.139 +}
1.140 +#endif
1.141 +
