Chris@69: /*********************************************************************** Chris@69: Copyright (c) 2006-2011, Skype Limited. All rights reserved. Chris@69: Redistribution and use in source and binary forms, with or without Chris@69: modification, are permitted provided that the following conditions Chris@69: are met: Chris@69: - Redistributions of source code must retain the above copyright notice, Chris@69: this list of conditions and the following disclaimer. Chris@69: - Redistributions in binary form must reproduce the above copyright Chris@69: notice, this list of conditions and the following disclaimer in the Chris@69: documentation and/or other materials provided with the distribution. Chris@69: - Neither the name of Internet Society, IETF or IETF Trust, nor the Chris@69: names of specific contributors, may be used to endorse or promote Chris@69: products derived from this software without specific prior written Chris@69: permission. Chris@69: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" Chris@69: AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE Chris@69: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Chris@69: ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE Chris@69: LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR Chris@69: CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF Chris@69: SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS Chris@69: INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN Chris@69: CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) Chris@69: ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE Chris@69: POSSIBILITY OF SUCH DAMAGE. Chris@69: ***********************************************************************/ Chris@69: Chris@69: #ifdef HAVE_CONFIG_H Chris@69: #include "config.h" Chris@69: #endif Chris@69: Chris@69: #include "structs.h" Chris@69: #include "define.h" Chris@69: #include "tables.h" Chris@69: Chris@69: #ifdef __cplusplus Chris@69: extern "C" Chris@69: { Chris@69: #endif Chris@69: Chris@69: /* Tables for stereo predictor coding */ Chris@69: const opus_int16 silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ] = { Chris@69: -13732, -10050, -8266, -7526, -6500, -5000, -2950, -820, Chris@69: 820, 2950, 5000, 6500, 7526, 8266, 10050, 13732 Chris@69: }; Chris@69: const opus_uint8 silk_stereo_pred_joint_iCDF[ 25 ] = { Chris@69: 249, 247, 246, 245, 244, Chris@69: 234, 210, 202, 201, 200, Chris@69: 197, 174, 82, 59, 56, Chris@69: 55, 54, 46, 22, 12, Chris@69: 11, 10, 9, 7, 0 Chris@69: }; Chris@69: const opus_uint8 silk_stereo_only_code_mid_iCDF[ 2 ] = { 64, 0 }; Chris@69: Chris@69: /* Tables for LBRR flags */ Chris@69: static const opus_uint8 silk_LBRR_flags_2_iCDF[ 3 ] = { 203, 150, 0 }; Chris@69: static const opus_uint8 silk_LBRR_flags_3_iCDF[ 7 ] = { 215, 195, 166, 125, 110, 82, 0 }; Chris@69: const opus_uint8 * const silk_LBRR_flags_iCDF_ptr[ 2 ] = { Chris@69: silk_LBRR_flags_2_iCDF, Chris@69: silk_LBRR_flags_3_iCDF Chris@69: }; Chris@69: Chris@69: /* Table for LSB coding */ Chris@69: const opus_uint8 silk_lsb_iCDF[ 2 ] = { 120, 0 }; Chris@69: Chris@69: /* Tables for LTPScale */ Chris@69: const opus_uint8 silk_LTPscale_iCDF[ 3 ] = { 128, 64, 0 }; Chris@69: Chris@69: /* Tables for signal type and offset coding */ Chris@69: const opus_uint8 silk_type_offset_VAD_iCDF[ 4 ] = { Chris@69: 232, 158, 10, 0 Chris@69: }; Chris@69: const opus_uint8 silk_type_offset_no_VAD_iCDF[ 2 ] = { Chris@69: 230, 0 Chris@69: }; Chris@69: Chris@69: /* Tables for NLSF interpolation factor */ Chris@69: const opus_uint8 silk_NLSF_interpolation_factor_iCDF[ 5 ] = { 243, 221, 192, 181, 0 }; Chris@69: Chris@69: /* Quantization offsets */ Chris@69: const opus_int16 silk_Quantization_Offsets_Q10[ 2 ][ 2 ] = { Chris@69: { OFFSET_UVL_Q10, OFFSET_UVH_Q10 }, { OFFSET_VL_Q10, OFFSET_VH_Q10 } Chris@69: }; Chris@69: Chris@69: /* Table for LTPScale */ Chris@69: const opus_int16 silk_LTPScales_table_Q14[ 3 ] = { 15565, 12288, 8192 }; Chris@69: Chris@69: /* Uniform entropy tables */ Chris@69: const opus_uint8 silk_uniform3_iCDF[ 3 ] = { 171, 85, 0 }; Chris@69: const opus_uint8 silk_uniform4_iCDF[ 4 ] = { 192, 128, 64, 0 }; Chris@69: const opus_uint8 silk_uniform5_iCDF[ 5 ] = { 205, 154, 102, 51, 0 }; Chris@69: const opus_uint8 silk_uniform6_iCDF[ 6 ] = { 213, 171, 128, 85, 43, 0 }; Chris@69: const opus_uint8 silk_uniform8_iCDF[ 8 ] = { 224, 192, 160, 128, 96, 64, 32, 0 }; Chris@69: Chris@69: const opus_uint8 silk_NLSF_EXT_iCDF[ 7 ] = { 100, 40, 16, 7, 3, 1, 0 }; Chris@69: Chris@69: /* Elliptic/Cauer filters designed with 0.1 dB passband ripple, Chris@69: 80 dB minimum stopband attenuation, and Chris@69: [0.95 : 0.15 : 0.35] normalized cut off frequencies. */ Chris@69: Chris@69: /* Interpolation points for filter coefficients used in the bandwidth transition smoother */ Chris@69: const opus_int32 silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ] = Chris@69: { Chris@69: { 250767114, 501534038, 250767114 }, Chris@69: { 209867381, 419732057, 209867381 }, Chris@69: { 170987846, 341967853, 170987846 }, Chris@69: { 131531482, 263046905, 131531482 }, Chris@69: { 89306658, 178584282, 89306658 } Chris@69: }; Chris@69: Chris@69: /* Interpolation points for filter coefficients used in the bandwidth transition smoother */ Chris@69: const opus_int32 silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ] = Chris@69: { Chris@69: { 506393414, 239854379 }, Chris@69: { 411067935, 169683996 }, Chris@69: { 306733530, 116694253 }, Chris@69: { 185807084, 77959395 }, Chris@69: { 35497197, 57401098 } Chris@69: }; Chris@69: Chris@69: #ifdef __cplusplus Chris@69: } Chris@69: #endif Chris@69: