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| /***********************************************************************
| Copyright (c) 2006-2011, Skype Limited. All rights reserved.
| Redistribution and use in source and binary forms, with or without
| modification, are permitted provided that the following conditions
| are met:
| - Redistributions of source code must retain the above copyright notice,
| this list of conditions and the following disclaimer.
| - Redistributions in binary form must reproduce the above copyright
| notice, this list of conditions and the following disclaimer in the
| documentation and/or other materials provided with the distribution.
| - Neither the name of Internet Society, IETF or IETF Trust, nor the
| names of specific contributors, may be used to endorse or promote
| products derived from this software without specific prior written
| permission.
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
| ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
| LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
| CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
| SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
| INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
| CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
| POSSIBILITY OF SUCH DAMAGE.
| ***********************************************************************/
|
| #ifdef HAVE_CONFIG_H
| #include "config.h"
| #endif
|
| #include "structs.h"
| #include "define.h"
| #include "tables.h"
|
| #ifdef __cplusplus
| extern "C"
| {
| #endif
|
| /* Tables for stereo predictor coding */
| const opus_int16 silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ] = {
| -13732, -10050, -8266, -7526, -6500, -5000, -2950, -820,
| 820, 2950, 5000, 6500, 7526, 8266, 10050, 13732
| };
| const opus_uint8 silk_stereo_pred_joint_iCDF[ 25 ] = {
| 249, 247, 246, 245, 244,
| 234, 210, 202, 201, 200,
| 197, 174, 82, 59, 56,
| 55, 54, 46, 22, 12,
| 11, 10, 9, 7, 0
| };
| const opus_uint8 silk_stereo_only_code_mid_iCDF[ 2 ] = { 64, 0 };
|
| /* Tables for LBRR flags */
| static const opus_uint8 silk_LBRR_flags_2_iCDF[ 3 ] = { 203, 150, 0 };
| static const opus_uint8 silk_LBRR_flags_3_iCDF[ 7 ] = { 215, 195, 166, 125, 110, 82, 0 };
| const opus_uint8 * const silk_LBRR_flags_iCDF_ptr[ 2 ] = {
| silk_LBRR_flags_2_iCDF,
| silk_LBRR_flags_3_iCDF
| };
|
| /* Table for LSB coding */
| const opus_uint8 silk_lsb_iCDF[ 2 ] = { 120, 0 };
|
| /* Tables for LTPScale */
| const opus_uint8 silk_LTPscale_iCDF[ 3 ] = { 128, 64, 0 };
|
| /* Tables for signal type and offset coding */
| const opus_uint8 silk_type_offset_VAD_iCDF[ 4 ] = {
| 232, 158, 10, 0
| };
| const opus_uint8 silk_type_offset_no_VAD_iCDF[ 2 ] = {
| 230, 0
| };
|
| /* Tables for NLSF interpolation factor */
| const opus_uint8 silk_NLSF_interpolation_factor_iCDF[ 5 ] = { 243, 221, 192, 181, 0 };
|
| /* Quantization offsets */
| const opus_int16 silk_Quantization_Offsets_Q10[ 2 ][ 2 ] = {
| { OFFSET_UVL_Q10, OFFSET_UVH_Q10 }, { OFFSET_VL_Q10, OFFSET_VH_Q10 }
| };
|
| /* Table for LTPScale */
| const opus_int16 silk_LTPScales_table_Q14[ 3 ] = { 15565, 12288, 8192 };
|
| /* Uniform entropy tables */
| const opus_uint8 silk_uniform3_iCDF[ 3 ] = { 171, 85, 0 };
| const opus_uint8 silk_uniform4_iCDF[ 4 ] = { 192, 128, 64, 0 };
| const opus_uint8 silk_uniform5_iCDF[ 5 ] = { 205, 154, 102, 51, 0 };
| const opus_uint8 silk_uniform6_iCDF[ 6 ] = { 213, 171, 128, 85, 43, 0 };
| const opus_uint8 silk_uniform8_iCDF[ 8 ] = { 224, 192, 160, 128, 96, 64, 32, 0 };
|
| const opus_uint8 silk_NLSF_EXT_iCDF[ 7 ] = { 100, 40, 16, 7, 3, 1, 0 };
|
| /* Elliptic/Cauer filters designed with 0.1 dB passband ripple,
| 80 dB minimum stopband attenuation, and
| [0.95 : 0.15 : 0.35] normalized cut off frequencies. */
|
| /* Interpolation points for filter coefficients used in the bandwidth transition smoother */
| const opus_int32 silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ] =
| {
| { 250767114, 501534038, 250767114 },
| { 209867381, 419732057, 209867381 },
| { 170987846, 341967853, 170987846 },
| { 131531482, 263046905, 131531482 },
| { 89306658, 178584282, 89306658 }
| };
|
| /* Interpolation points for filter coefficients used in the bandwidth transition smoother */
| const opus_int32 silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ] =
| {
| { 506393414, 239854379 },
| { 411067935, 169683996 },
| { 306733530, 116694253 },
| { 185807084, 77959395 },
| { 35497197, 57401098 }
| };
|
| #ifdef __cplusplus
| }
| #endif
|
|
