xref: /aosp_15_r20/external/libopus/silk/tables_gain.c (revision a58d3d2adb790c104798cd88c8a3aff4fa8b82cc)
1*a58d3d2aSXin Li /***********************************************************************
2*a58d3d2aSXin Li Copyright (c) 2006-2011, Skype Limited. All rights reserved.
3*a58d3d2aSXin Li Redistribution and use in source and binary forms, with or without
4*a58d3d2aSXin Li modification, are permitted provided that the following conditions
5*a58d3d2aSXin Li are met:
6*a58d3d2aSXin Li - Redistributions of source code must retain the above copyright notice,
7*a58d3d2aSXin Li this list of conditions and the following disclaimer.
8*a58d3d2aSXin Li - Redistributions in binary form must reproduce the above copyright
9*a58d3d2aSXin Li notice, this list of conditions and the following disclaimer in the
10*a58d3d2aSXin Li documentation and/or other materials provided with the distribution.
11*a58d3d2aSXin Li - Neither the name of Internet Society, IETF or IETF Trust, nor the
12*a58d3d2aSXin Li names of specific contributors, may be used to endorse or promote
13*a58d3d2aSXin Li products derived from this software without specific prior written
14*a58d3d2aSXin Li permission.
15*a58d3d2aSXin Li THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16*a58d3d2aSXin Li AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17*a58d3d2aSXin Li IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18*a58d3d2aSXin Li ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19*a58d3d2aSXin Li LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20*a58d3d2aSXin Li CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21*a58d3d2aSXin Li SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22*a58d3d2aSXin Li INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23*a58d3d2aSXin Li CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24*a58d3d2aSXin Li ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25*a58d3d2aSXin Li POSSIBILITY OF SUCH DAMAGE.
26*a58d3d2aSXin Li ***********************************************************************/
27*a58d3d2aSXin Li 
28*a58d3d2aSXin Li #ifdef HAVE_CONFIG_H
29*a58d3d2aSXin Li #include "config.h"
30*a58d3d2aSXin Li #endif
31*a58d3d2aSXin Li 
32*a58d3d2aSXin Li #include "tables.h"
33*a58d3d2aSXin Li 
34*a58d3d2aSXin Li #ifdef __cplusplus
35*a58d3d2aSXin Li extern "C"
36*a58d3d2aSXin Li {
37*a58d3d2aSXin Li #endif
38*a58d3d2aSXin Li 
39*a58d3d2aSXin Li const opus_uint8 silk_gain_iCDF[ 3 ][ N_LEVELS_QGAIN / 8 ] =
40*a58d3d2aSXin Li {
41*a58d3d2aSXin Li {
42*a58d3d2aSXin Li        224,    112,     44,     15,      3,      2,      1,      0
43*a58d3d2aSXin Li },
44*a58d3d2aSXin Li {
45*a58d3d2aSXin Li        254,    237,    192,    132,     70,     23,      4,      0
46*a58d3d2aSXin Li },
47*a58d3d2aSXin Li {
48*a58d3d2aSXin Li        255,    252,    226,    155,     61,     11,      2,      0
49*a58d3d2aSXin Li }
50*a58d3d2aSXin Li };
51*a58d3d2aSXin Li 
52*a58d3d2aSXin Li const opus_uint8 silk_delta_gain_iCDF[ MAX_DELTA_GAIN_QUANT - MIN_DELTA_GAIN_QUANT + 1 ] = {
53*a58d3d2aSXin Li        250,    245,    234,    203,     71,     50,     42,     38,
54*a58d3d2aSXin Li         35,     33,     31,     29,     28,     27,     26,     25,
55*a58d3d2aSXin Li         24,     23,     22,     21,     20,     19,     18,     17,
56*a58d3d2aSXin Li         16,     15,     14,     13,     12,     11,     10,      9,
57*a58d3d2aSXin Li          8,      7,      6,      5,      4,      3,      2,      1,
58*a58d3d2aSXin Li          0
59*a58d3d2aSXin Li };
60*a58d3d2aSXin Li 
61*a58d3d2aSXin Li #ifdef __cplusplus
62*a58d3d2aSXin Li }
63*a58d3d2aSXin Li #endif
64