michael@0: /*********************************************************************** michael@0: Copyright (c) 2006-2011, Skype Limited. All rights reserved. michael@0: Redistribution and use in source and binary forms, with or without michael@0: modification, are permitted provided that the following conditions michael@0: are met: michael@0: - Redistributions of source code must retain the above copyright notice, michael@0: this list of conditions and the following disclaimer. michael@0: - Redistributions in binary form must reproduce the above copyright michael@0: notice, this list of conditions and the following disclaimer in the michael@0: documentation and/or other materials provided with the distribution. michael@0: - Neither the name of Internet Society, IETF or IETF Trust, nor the michael@0: names of specific contributors, may be used to endorse or promote michael@0: products derived from this software without specific prior written michael@0: permission. michael@0: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" michael@0: AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE michael@0: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE michael@0: ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE michael@0: LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR michael@0: CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF michael@0: SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS michael@0: INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN michael@0: CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) michael@0: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE michael@0: POSSIBILITY OF SUCH DAMAGE. michael@0: ***********************************************************************/ michael@0: michael@0: #ifdef HAVE_CONFIG_H michael@0: #include "config.h" michael@0: #endif michael@0: michael@0: #include "structs.h" michael@0: #include "define.h" michael@0: #include "tables.h" michael@0: michael@0: #ifdef __cplusplus michael@0: extern "C" michael@0: { michael@0: #endif michael@0: michael@0: /* Piece-wise linear mapping from bitrate in kbps to coding quality in dB SNR */ michael@0: const opus_int32 silk_TargetRate_table_NB[ TARGET_RATE_TAB_SZ ] = { michael@0: 0, 8000, 9400, 11500, 13500, 17500, 25000, MAX_TARGET_RATE_BPS michael@0: }; michael@0: const opus_int32 silk_TargetRate_table_MB[ TARGET_RATE_TAB_SZ ] = { michael@0: 0, 9000, 12000, 14500, 18500, 24500, 35500, MAX_TARGET_RATE_BPS michael@0: }; michael@0: const opus_int32 silk_TargetRate_table_WB[ TARGET_RATE_TAB_SZ ] = { michael@0: 0, 10500, 14000, 17000, 21500, 28500, 42000, MAX_TARGET_RATE_BPS michael@0: }; michael@0: const opus_int16 silk_SNR_table_Q1[ TARGET_RATE_TAB_SZ ] = { michael@0: 18, 29, 38, 40, 46, 52, 62, 84 michael@0: }; michael@0: michael@0: /* Tables for stereo predictor coding */ michael@0: const opus_int16 silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ] = { michael@0: -13732, -10050, -8266, -7526, -6500, -5000, -2950, -820, michael@0: 820, 2950, 5000, 6500, 7526, 8266, 10050, 13732 michael@0: }; michael@0: const opus_uint8 silk_stereo_pred_joint_iCDF[ 25 ] = { michael@0: 249, 247, 246, 245, 244, michael@0: 234, 210, 202, 201, 200, michael@0: 197, 174, 82, 59, 56, michael@0: 55, 54, 46, 22, 12, michael@0: 11, 10, 9, 7, 0 michael@0: }; michael@0: const opus_uint8 silk_stereo_only_code_mid_iCDF[ 2 ] = { 64, 0 }; michael@0: michael@0: /* Tables for LBRR flags */ michael@0: static const opus_uint8 silk_LBRR_flags_2_iCDF[ 3 ] = { 203, 150, 0 }; michael@0: static const opus_uint8 silk_LBRR_flags_3_iCDF[ 7 ] = { 215, 195, 166, 125, 110, 82, 0 }; michael@0: const opus_uint8 * const silk_LBRR_flags_iCDF_ptr[ 2 ] = { michael@0: silk_LBRR_flags_2_iCDF, michael@0: silk_LBRR_flags_3_iCDF michael@0: }; michael@0: michael@0: /* Table for LSB coding */ michael@0: const opus_uint8 silk_lsb_iCDF[ 2 ] = { 120, 0 }; michael@0: michael@0: /* Tables for LTPScale */ michael@0: const opus_uint8 silk_LTPscale_iCDF[ 3 ] = { 128, 64, 0 }; michael@0: michael@0: /* Tables for signal type and offset coding */ michael@0: const opus_uint8 silk_type_offset_VAD_iCDF[ 4 ] = { michael@0: 232, 158, 10, 0 michael@0: }; michael@0: const opus_uint8 silk_type_offset_no_VAD_iCDF[ 2 ] = { michael@0: 230, 0 michael@0: }; michael@0: michael@0: /* Tables for NLSF interpolation factor */ michael@0: const opus_uint8 silk_NLSF_interpolation_factor_iCDF[ 5 ] = { 243, 221, 192, 181, 0 }; michael@0: michael@0: /* Quantization offsets */ michael@0: const opus_int16 silk_Quantization_Offsets_Q10[ 2 ][ 2 ] = { michael@0: { OFFSET_UVL_Q10, OFFSET_UVH_Q10 }, { OFFSET_VL_Q10, OFFSET_VH_Q10 } michael@0: }; michael@0: michael@0: /* Table for LTPScale */ michael@0: const opus_int16 silk_LTPScales_table_Q14[ 3 ] = { 15565, 12288, 8192 }; michael@0: michael@0: /* Uniform entropy tables */ michael@0: const opus_uint8 silk_uniform3_iCDF[ 3 ] = { 171, 85, 0 }; michael@0: const opus_uint8 silk_uniform4_iCDF[ 4 ] = { 192, 128, 64, 0 }; michael@0: const opus_uint8 silk_uniform5_iCDF[ 5 ] = { 205, 154, 102, 51, 0 }; michael@0: const opus_uint8 silk_uniform6_iCDF[ 6 ] = { 213, 171, 128, 85, 43, 0 }; michael@0: const opus_uint8 silk_uniform8_iCDF[ 8 ] = { 224, 192, 160, 128, 96, 64, 32, 0 }; michael@0: michael@0: const opus_uint8 silk_NLSF_EXT_iCDF[ 7 ] = { 100, 40, 16, 7, 3, 1, 0 }; michael@0: michael@0: /* Elliptic/Cauer filters designed with 0.1 dB passband ripple, michael@0: 80 dB minimum stopband attenuation, and michael@0: [0.95 : 0.15 : 0.35] normalized cut off frequencies. */ michael@0: michael@0: /* Interpolation points for filter coefficients used in the bandwidth transition smoother */ michael@0: const opus_int32 silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ] = michael@0: { michael@0: { 250767114, 501534038, 250767114 }, michael@0: { 209867381, 419732057, 209867381 }, michael@0: { 170987846, 341967853, 170987846 }, michael@0: { 131531482, 263046905, 131531482 }, michael@0: { 89306658, 178584282, 89306658 } michael@0: }; michael@0: michael@0: /* Interpolation points for filter coefficients used in the bandwidth transition smoother */ michael@0: const opus_int32 silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ] = michael@0: { michael@0: { 506393414, 239854379 }, michael@0: { 411067935, 169683996 }, michael@0: { 306733530, 116694253 }, michael@0: { 185807084, 77959395 }, michael@0: { 35497197, 57401098 } michael@0: }; michael@0: michael@0: #ifdef __cplusplus michael@0: } michael@0: #endif michael@0: