media/libopus/silk/tables_other.c@b8a032363ba2 (annotated)
media/libopus/silk/tables_other.c
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| 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 |
