diff options
Diffstat (limited to 'lib/rbcodec/codecs/libopus/silk/tables_other.c')
-rw-r--r-- | lib/rbcodec/codecs/libopus/silk/tables_other.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libopus/silk/tables_other.c b/lib/rbcodec/codecs/libopus/silk/tables_other.c new file mode 100644 index 0000000000..5119ebd39f --- /dev/null +++ b/lib/rbcodec/codecs/libopus/silk/tables_other.c | |||
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1 | /*********************************************************************** | ||
2 | Copyright (c) 2006-2011, Skype Limited. All rights reserved. | ||
3 | Redistribution and use in source and binary forms, with or without | ||
4 | modification, are permitted provided that the following conditions | ||
5 | are met: | ||
6 | - Redistributions of source code must retain the above copyright notice, | ||
7 | this list of conditions and the following disclaimer. | ||
8 | - Redistributions in binary form must reproduce the above copyright | ||
9 | notice, this list of conditions and the following disclaimer in the | ||
10 | documentation and/or other materials provided with the distribution. | ||
11 | - Neither the name of Internet Society, IETF or IETF Trust, nor the | ||
12 | names of specific contributors, may be used to endorse or promote | ||
13 | products derived from this software without specific prior written | ||
14 | permission. | ||
15 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” | ||
16 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
17 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
18 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | ||
19 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
20 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
21 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
22 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
23 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
24 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
25 | POSSIBILITY OF SUCH DAMAGE. | ||
26 | ***********************************************************************/ | ||
27 | |||
28 | #ifdef HAVE_CONFIG_H | ||
29 | #include "opus_config.h" | ||
30 | #endif | ||
31 | |||
32 | #include "structs.h" | ||
33 | #include "define.h" | ||
34 | #include "tables.h" | ||
35 | |||
36 | #ifdef __cplusplus | ||
37 | extern "C" | ||
38 | { | ||
39 | #endif | ||
40 | |||
41 | /* Piece-wise linear mapping from bitrate in kbps to coding quality in dB SNR */ | ||
42 | const opus_int32 silk_TargetRate_table_NB[ TARGET_RATE_TAB_SZ ] = { | ||
43 | 0, 8000, 9400, 11500, 13500, 17500, 25000, MAX_TARGET_RATE_BPS | ||
44 | }; | ||
45 | const opus_int32 silk_TargetRate_table_MB[ TARGET_RATE_TAB_SZ ] = { | ||
46 | 0, 9000, 12000, 14500, 18500, 24500, 35500, MAX_TARGET_RATE_BPS | ||
47 | }; | ||
48 | const opus_int32 silk_TargetRate_table_WB[ TARGET_RATE_TAB_SZ ] = { | ||
49 | 0, 10500, 14000, 17000, 21500, 28500, 42000, MAX_TARGET_RATE_BPS | ||
50 | }; | ||
51 | const opus_int16 silk_SNR_table_Q1[ TARGET_RATE_TAB_SZ ] = { | ||
52 | 18, 29, 38, 40, 46, 52, 62, 84 | ||
53 | }; | ||
54 | |||
55 | /* Tables for stereo predictor coding */ | ||
56 | const opus_int16 silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ] = { | ||
57 | -13732, -10050, -8266, -7526, -6500, -5000, -2950, -820, | ||
58 | 820, 2950, 5000, 6500, 7526, 8266, 10050, 13732 | ||
59 | }; | ||
60 | const opus_uint8 silk_stereo_pred_joint_iCDF[ 25 ] = { | ||
61 | 249, 247, 246, 245, 244, | ||
62 | 234, 210, 202, 201, 200, | ||
63 | 197, 174, 82, 59, 56, | ||
64 | 55, 54, 46, 22, 12, | ||
65 | 11, 10, 9, 7, 0 | ||
66 | }; | ||
67 | const opus_uint8 silk_stereo_only_code_mid_iCDF[ 2 ] = { 64, 0 }; | ||
68 | |||
69 | /* Tables for LBRR flags */ | ||
70 | static const opus_uint8 silk_LBRR_flags_2_iCDF[ 3 ] = { 203, 150, 0 }; | ||
71 | static const opus_uint8 silk_LBRR_flags_3_iCDF[ 7 ] = { 215, 195, 166, 125, 110, 82, 0 }; | ||
72 | const opus_uint8 * const silk_LBRR_flags_iCDF_ptr[ 2 ] = { | ||
73 | silk_LBRR_flags_2_iCDF, | ||
74 | silk_LBRR_flags_3_iCDF | ||
75 | }; | ||
76 | |||
77 | /* Table for LSB coding */ | ||
78 | const opus_uint8 silk_lsb_iCDF[ 2 ] = { 120, 0 }; | ||
79 | |||
80 | /* Tables for LTPScale */ | ||
81 | const opus_uint8 silk_LTPscale_iCDF[ 3 ] = { 128, 64, 0 }; | ||
82 | |||
83 | /* Tables for signal type and offset coding */ | ||
84 | const opus_uint8 silk_type_offset_VAD_iCDF[ 4 ] = { | ||
85 | 232, 158, 10, 0 | ||
86 | }; | ||
87 | const opus_uint8 silk_type_offset_no_VAD_iCDF[ 2 ] = { | ||
88 | 230, 0 | ||
89 | }; | ||
90 | |||
91 | /* Tables for NLSF interpolation factor */ | ||
92 | const opus_uint8 silk_NLSF_interpolation_factor_iCDF[ 5 ] = { 243, 221, 192, 181, 0 }; | ||
93 | |||
94 | /* Quantization offsets */ | ||
95 | const opus_int16 silk_Quantization_Offsets_Q10[ 2 ][ 2 ] = { | ||
96 | { OFFSET_UVL_Q10, OFFSET_UVH_Q10 }, { OFFSET_VL_Q10, OFFSET_VH_Q10 } | ||
97 | }; | ||
98 | |||
99 | /* Table for LTPScale */ | ||
100 | const opus_int16 silk_LTPScales_table_Q14[ 3 ] = { 15565, 12288, 8192 }; | ||
101 | |||
102 | /* Uniform entropy tables */ | ||
103 | const opus_uint8 silk_uniform3_iCDF[ 3 ] = { 171, 85, 0 }; | ||
104 | const opus_uint8 silk_uniform4_iCDF[ 4 ] = { 192, 128, 64, 0 }; | ||
105 | const opus_uint8 silk_uniform5_iCDF[ 5 ] = { 205, 154, 102, 51, 0 }; | ||
106 | const opus_uint8 silk_uniform6_iCDF[ 6 ] = { 213, 171, 128, 85, 43, 0 }; | ||
107 | const opus_uint8 silk_uniform8_iCDF[ 8 ] = { 224, 192, 160, 128, 96, 64, 32, 0 }; | ||
108 | |||
109 | const opus_uint8 silk_NLSF_EXT_iCDF[ 7 ] = { 100, 40, 16, 7, 3, 1, 0 }; | ||
110 | |||
111 | /* Elliptic/Cauer filters designed with 0.1 dB passband ripple, | ||
112 | 80 dB minimum stopband attenuation, and | ||
113 | [0.95 : 0.15 : 0.35] normalized cut off frequencies. */ | ||
114 | |||
115 | /* Interpolation points for filter coefficients used in the bandwidth transition smoother */ | ||
116 | const opus_int32 silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ] = | ||
117 | { | ||
118 | { 250767114, 501534038, 250767114 }, | ||
119 | { 209867381, 419732057, 209867381 }, | ||
120 | { 170987846, 341967853, 170987846 }, | ||
121 | { 131531482, 263046905, 131531482 }, | ||
122 | { 89306658, 178584282, 89306658 } | ||
123 | }; | ||
124 | |||
125 | /* Interpolation points for filter coefficients used in the bandwidth transition smoother */ | ||
126 | const opus_int32 silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ] = | ||
127 | { | ||
128 | { 506393414, 239854379 }, | ||
129 | { 411067935, 169683996 }, | ||
130 | { 306733530, 116694253 }, | ||
131 | { 185807084, 77959395 }, | ||
132 | { 35497197, 57401098 } | ||
133 | }; | ||
134 | |||
135 | #ifdef __cplusplus | ||
136 | } | ||
137 | #endif | ||
138 | |||