c6b24d4d3c7e70c5c910fac034d37970b319336c
[libav.git] / libavcodec / ra288.h
1 /*
2 * RealAudio 2.0 (28.8K)
3 * Copyright (c) 2003 the ffmpeg project
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #ifndef FFMPEG_RA288_H
23 #define FFMPEG_RA288_H
24
25 static const float amptable[8]={
26 0.515625, 0.90234375, 1.57910156, 2.76342773,
27 -0.515625, -0.90234375, -1.57910156, -2.76342773
28 };
29
30 static const float codetable[128][5]={
31 { 0.326171875, -1.4404296875, -0.6123046875, -0.8740234375, -1.24658203125},
32 {-2.45703125, -2.23486328125, -0.51025390625, 1.419921875, 1.6201171875 },
33 {-1.37646484375, -1.30712890625, -0.462890625, -1.37939453125, -2.1728515625 },
34 {-3.26123046875, -0.166015625, 0.7236328125, -0.623046875, 0.6162109375 },
35 {-0.2744140625, -3.29931640625, 0.62548828125, 0.08740234375, -0.6220703125 },
36 {-1.2265625, -3.4814453125, -2.40478515625, 3.37548828125, 1.17724609375},
37 {-1.2099609375, -0.076171875, 2.28662109375, -1.89111328125, 0 },
38 {-4.0078125, 1.044921875, -0.2333984375, -1.35986328125, 0.26025390625},
39 { 0.92236328125, 1.34716796875, 0.67431640625, -3.39599609375, -2.88720703125},
40 { 2.4814453125, -1.201171875, -2.8212890625, 0.87744140625, 0.27734375 },
41 {-1.078125, -1.61572265625, -2.20849609375, -3.044921875, -3.66455078125},
42 {-1.32763671875, 2.1279296875, -1.458984375, -0.56103515625, 1.30078125 },
43 { 0.61474609375, 0.48583984375, 1.32373046875, -1.203125, -5.0732421875 },
44 { 0.8408203125, -3.69580078125, -1.3388671875, 1.06005859375, -1.13720703125},
45 { 0.50390625, 0.36474609375, -0.4189453125, -3.8798828125, -6.27099609375},
46 { 1.5166015625, 2.37109375, -2.04736328125, -1.24072265625, 0.50537109375},
47 { 0.9091796875, -0.46875, -3.236328125, 0.2001953125, 2.8720703125 },
48 {-1.21728515625, -1.283203125, -1.953125, -0.029296875, 3.5166015625 },
49 {-1.3046875, 0.7060546875, 0.75, -1.87060546875, 0.60205078125},
50 {-2.5888671875, 3.375, 0.77587890625, -2.04443359375, 1.78955078125},
51 {-1.6875, -3.9892578125, -3.76416015625, 0.67578125, 2.2939453125 },
52 {-2.29443359375, -3.03173828125, -5.45703125, 3.95703125, 8.2177734375 },
53 { 0.4541015625, 3.419921875, 0.61962890625, -4.38330078125, 1.25341796875},
54 { 2.27001953125, 5.763671875, 1.68017578125, -2.76220703125, 0.58544921875},
55 { 1.2412109375, -0.08935546875, -4.32568359375, -3.89453125, 1.5771484375 },
56 {-1.40234375, -0.98193359375, -4.74267578125, -4.09423828125, 6.33935546875},
57 { 1.5068359375, 1.044921875, -1.796875, -4.70849609375, -1.4140625 },
58 {-3.71533203125, 3.18115234375, -1.11474609375, -1.2314453125, 3.091796875 },
59 {-1.62744140625, -2.744140625, -4.4580078125, -5.43505859375, 2.70654296875},
60 {-0.19873046875, -3.28173828125, -8.5283203125, -1.41064453125, 5.6484375 },
61 { 1.802734375, 3.318359375, -0.1279296875, -5.2958984375, -0.90625 },
62 { 3.55224609375, 6.544921875, -1.45947265625, -5.17333984375, 2.41015625 },
63 { 0.119140625, -1.08349609375, 1.296875, 1.84375, -2.642578125 },
64 {-1.97412109375, -2.8974609375, 1.04052734375, 0.42138671875, -1.3994140625 },
65 {-1.6123046875, 0.85107421875, -0.9794921875, -0.0625, -1.001953125 },
66 {-3.10595703125, 1.6318359375, -0.77294921875, -0.01025390625, 0.5576171875 },
67 {-1.87353515625, -0.89404296875, 3.12353515625, 1.24267578125, -1.390625 },
68 {-4.556640625, -3.1875, 2.59228515625, 0.9697265625, -1.09619140625},
69 {-2.1923828125, 0.365234375, 0.94482421875, -1.47802734375, -0.24072265625},
70 {-4.51904296875, 2.6201171875, 1.55908203125, -2.19384765625, 0.87109375 },
71 { 2.3359375, -0.1806640625, 0.9111328125, 0.51611328125, -0.92236328125},
72 { 3.5849609375, -1.3134765625, -1.25830078125, 0.330078125, -0.29833984375},
73 {-0.2451171875, 1.09130859375, -0.9033203125, -0.86767578125, -1.00048828125},
74 { 0.49365234375, 1.89453125, -1.20361328125, 1.07861328125, -0.07421875 },
75 { 1.265625, 1.38134765625, 2.728515625, 1.38623046875, -3.5673828125 },
76 {-1.48876953125, -2.4013671875, 2.90771484375, 4.49267578125, -2.17138671875},
77 { 0.34033203125, 1.908203125, 2.8310546875, -2.17333984375, -2.267578125 },
78 {-1.03564453125, 2.658203125, -1.2548828125, 0.15673828125, -0.5869140625 },
79 { 1.3896484375, -1.0185546875, 1.724609375, 0.2763671875, -0.345703125 },
80 {-2.08935546875, 0.4638671875, 2.431640625, 1.83056640625, 0.220703125 },
81 {-1.212890625, 1.7099609375, 0.83935546875, -0.0830078125, 0.1162109375 },
82 {-1.67724609375, 0.12841796875, 1.0322265625, -0.97900390625, 1.15283203125},
83 {-3.5830078125, -0.58984375, 4.56396484375, -0.59375, -1.95947265625},
84 {-6.5908203125, -0.21435546875, 3.919921875, -2.06640625, 0.17626953125},
85 {-1.82080078125, 2.65283203125, 0.978515625, -2.30810546875, -0.61474609375},
86 {-1.9462890625, 3.78076171875, 4.11572265625, -1.80224609375, -0.48193359375},
87 { 2.5380859375, -0.20654296875, 0.5615234375, -0.62548828125, 0.3984375 },
88 { 3.61767578125, 2.00634765625, -1.92822265625, 1.3134765625, 0.0146484384313},
89 { 0.6083984375, 1.49169921875, -0.01708984375, -0.6689453125, -0.1201171875 },
90 {-0.72705078125, 2.75146484375, -0.3310546875, -1.28271484375, 1.5478515625 },
91 { 2.3583984375, -2.23876953125, 0.98046875, -0.5185546875, 0.39013671875},
92 {-0.06298828125, 0.35009765625, 2.2431640625, 7.29345703125, 5.2275390625 },
93 { 0.20361328125, 1.34716796875, 0.9033203125, -2.46923828125, -0.56298828125},
94 {-1.89794921875, 3.59423828125, -2.81640625, 2.09228515625, 0.3251953125 },
95 { 0.70458984375, -0.4580078125, 0.009765625, -1.03466796875, -0.82861328125},
96 {-1.8125, -1.6611328125, -1.080078125, 0.0537109375, 1.04296875 },
97 {-1.44140625, 0.005859375, -0.765625, -1.708984375, -0.90576171875},
98 {-0.64208984375, -0.84521484375, 0.56640625, -0.2724609375, 0.83447265625},
99 { 0.04296875, -2.23095703125, 0.0947265625, -0.2216796875, -1.44384765625},
100 {-1.38623046875, -0.8134765625, -0.13330078125, 1.017578125, -0.07568359375},
101 {-0.09228515625, -1.16015625, 0.81201171875, -0.5078125, -1.19580078125},
102 {-1.3876953125, -0.66845703125, 0.310546875, -0.12109375, -1.30712890625},
103 { 0.74072265625, 0.03857421875, -1.47119140625, -1.79150390625, -0.47509765625},
104 { 0.93408203125, -1.21728515625, -2.59375, -0.36572265625, 0.62060546875},
105 {-1.41748046875, -1.623046875, -1.833984375, -1.8017578125, -0.89306640625},
106 {-1.42236328125, -0.75537109375, -1.34765625, -0.6865234375, 0.548828125 },
107 { 0.900390625, -0.8955078125, 0.22265625, 0.3447265625, -2.0859375 },
108 { 0.22802734375, -2.078125, -0.93212890625, 0.74267578125, 0.5537109375 },
109 {-0.06201171875, -0.4853515625, -0.31103515625, -0.72802734375, -3.1708984375 },
110 { 0.42626953125, -0.99853515625, -1.869140625, -1.36328125, -0.2822265625 },
111 { 1.12841796875, -0.88720703125, 1.28515625, -1.490234375, 0.9609375 },
112 { 0.31298828125, 0.5830078125, 0.92431640625, 2.00537109375, 3.0966796875 },
113 {-0.02197265625, 0.5849609375, 1.0546875, -0.70751953125, 1.07568359375},
114 {-0.978515625, 0.83642578125, 1.7177734375, 1.294921875, 2.07568359375},
115 { 1.43359375, -1.9375, 0.625, 0.06396484375, -0.720703125 },
116 { 1.38037109375, 0.00390625, -0.94140625, 1.2978515625, 1.71533203125},
117 { 1.56201171875, -0.3984375, 1.31201171875, -0.85009765625, -0.68701171875},
118 { 1.439453125, 1.96728515625, 0.1923828125, -0.12353515625, 0.6337890625 },
119 { 2.0927734375, 0.02490234375, -2.20068359375, -0.015625, -0.32177734375},
120 { 1.90576171875, 2.7568359375, -2.728515625, -1.265625, 2.78662109375},
121 {-0.2958984375, 0.6025390625, -0.78466796875, -2.53271484375, 0.32421875 },
122 {-0.25634765625, 1.767578125, -1.0703125, -1.23388671875, 0.83349609375},
123 { 2.09814453125, -1.58740234375, -1.11474609375, 0.396484375, -1.10546875 },
124 { 2.81494140625, 0.2578125, -1.60498046875, 0.66015625, 0.81640625 },
125 { 1.33544921875, 0.60595703125, -0.53857421875, -1.59814453125, -1.66357421875},
126 { 1.96923828125, 0.8046875, -1.44775390625, -0.5732421875, 0.705078125 },
127 { 0.0361328125, 0.4482421875, 0.97607421875, 0.44677734375, -0.5009765625 },
128 {-1.21875, -0.78369140625, 0.9931640625, 1.4404296875, 0.11181640625},
129 {-1.05859375, 0.99462890625,0.00732421921566,-0.6171875, -0.1015625 },
130 {-1.734375, 0.7470703125, 0.28369140625, 0.72802734375, 0.4697265625 },
131 {-1.27587890625, -1.1416015625, 1.76806640625, -0.7265625, -1.06689453125},
132 {-0.85302734375, 0.03955078125, 2.7041015625, 0.69921875, -1.10205078125},
133 {-0.49755859375, 0.42333984375, 0.1044921875, -1.115234375, -0.7373046875 },
134 {-0.822265625, 1.375, -0.11181640625, 1.24560546875, -0.67822265625},
135 { 1.32177734375, 0.24609375, 0.23388671875, 1.35888671875, -0.49267578125},
136 { 1.22900390625, -0.72607421875, -0.779296875, 0.30322265625, 0.94189453125},
137 {-0.072265625, 1.0771484375, -2.09375, 0.630859375, -0.68408203125},
138 {-0.25732421875, 0.60693359375, -1.33349609375, 0.93212890625, 0.625 },
139 { 1.04931640625, -0.73291015625, 1.80078125, 0.2978515625, -2.24169921875},
140 { 1.6142578125, -1.64501953125, 0.91552734375, 1.775390625, -0.59423828125},
141 { 1.2568359375, 1.22705078125, 0.70751953125, -1.5009765625, -2.43115234375},
142 { 0.3974609375, 0.8916015625, -1.21923828125, 2.0673828125, -1.99072265625},
143 { 0.8125, -0.107421875, 1.6689453125, 0.4892578125, 0.54443359375},
144 { 0.38134765625, 0.8095703125, 1.91357421875, 2.9931640625, 1.533203125 },
145 { 0.560546875, 1.98486328125, 0.740234375, 0.39794921875, 0.09716796875},
146 { 0.58154296875, 1.21533203125, 1.25048828125, 1.18212890625, 1.19287109375},
147 { 0.3759765625, -2.88818359375, 2.69287109375, -0.1796875, -1.56201171875},
148 { 0.5810546875, 0.51123046875, 1.8271484375, 3.38232421875, -1.02001953125},
149 { 0.142578125, 1.51318359375, 2.103515625, -0.3701171875, -1.19873046875},
150 { 0.25537109375, 1.91455078125, 1.974609375, 0.6767578125, 0.04150390625},
151 { 2.13232421875, 0.4912109375, -0.611328125, -0.7158203125, -0.67529296875},
152 { 1.880859375, 0.77099609375, -0.03759765625, 1.0078125, 0.423828125 },
153 { 2.49462890625, 1.42529296875, -0.0986328125, 0.17529296875, -0.24853515625},
154 { 1.7822265625, 1.5654296875, 1.12451171875, 0.82666015625, 0.6328125 },
155 { 1.41845703125, -1.90771484375, 0.11181640625, -0.583984375, -1.138671875 },
156 { 2.91845703125, -1.75048828125, 0.39306640625, 1.86767578125, -1.5322265625 },
157 { 1.8291015625, -0.2958984375, 0.02587890625, -0.13134765625, -1.61181640625},
158 { 0.2958984375, 0.9853515625, -0.642578125, 1.984375, 0.1943359375 }
159 };
160
161 static const float syn_window[111]={
162 0.576690972, 0.580838025, 0.585013986, 0.589219987, 0.59345597, 0.597723007,
163 0.602020264, 0.606384277, 0.610748291, 0.615142822, 0.619598389, 0.624084473,
164 0.628570557, 0.633117676, 0.637695313, 0.642272949, 0.646911621, 0.651580811,
165 0.656280518, 0.66104126, 0.665802002, 0.670593262, 0.675445557, 0.680328369,
166 0.685241699, 0.690185547, 0.695159912, 0.700164795, 0.705230713, 0.710327148,
167 0.715454102, 0.720611572, 0.725830078, 0.731048584, 0.736328125, 0.741638184,
168 0.747009277, 0.752380371, 0.7578125, 0.763305664, 0.768798828, 0.774353027,
169 0.779937744, 0.785583496, 0.791229248, 0.796936035, 0.802703857, 0.808502197,
170 0.814331055, 0.820220947, 0.826141357, 0.832092285, 0.838104248, 0.844146729,
171 0.850250244, 0.856384277, 0.862548828, 0.868774414, 0.875061035, 0.881378174,
172 0.88772583, 0.894134521, 0.900604248, 0.907104492, 0.913635254, 0.920227051,
173 0.926879883, 0.933563232, 0.940307617, 0.94708252, 0.953918457, 0.96081543,
174 0.96774292, 0.974731445, 0.981781006, 0.988861084, 0.994842529, 0.998565674,
175 0.999969482, 0.99911499, 0.996002197, 0.990600586, 0.982910156, 0.973022461,
176 0.960876465, 0.946533203, 0.930053711, 0.911437988, 0.89074707, 0.868041992,
177 0.843322754, 0.816680908, 0.788208008, 0.757904053, 0.725891113, 0.692199707,
178 0.656921387, 0.620178223, 0.582000732, 0.542480469, 0.501739502, 0.459838867,
179 0.416900635, 0.373016357, 0.328277588, 0.282775879, 0.236663818, 0.189971924,
180 0.142852783, 0.0954284668,0.0477600098
181 };
182
183 static const float gain_window[38]={
184 0.505699992, 0.524200022, 0.54339999, 0.563300014, 0.583953857, 0.60534668,
185 0.627502441, 0.650482178, 0.674316406, 0.699005127, 0.724578857, 0.75112915,
186 0.778625488, 0.807128906, 0.836669922, 0.86730957, 0.899078369, 0.932006836,
187 0.961486816, 0.982757568, 0.995635986, 1, 0.995819092, 0.983154297,
188 0.96206665, 0.932769775, 0.895507813, 0.850585938, 0.798400879, 0.739379883,
189 0.674072266, 0.602996826, 0.526763916, 0.446014404, 0.361480713, 0.273834229,
190 0.183868408, 0.0923461914
191 };
192
193 /** Synthesis bandwidth broadening table */
194 static const float syn_bw_tab[36]={
195 0.98828125, 0.976699829, 0.965254128, 0.953942537, 0.942763507, 0.931715488,
196 0.920796931, 0.910006344, 0.899342179, 0.888803005, 0.878387332, 0.868093729,
197 0.857920766, 0.847867012, 0.837931097, 0.828111589, 0.818407178, 0.808816493,
198 0.799338162, 0.789970934, 0.780713439, 0.771564424, 0.762522638, 0.753586829,
199 0.744755745, 0.736028135, 0.727402806, 0.718878567, 0.710454226, 0.702128589,
200 0.693900526, 0.685768902, 0.677732527, 0.669790328, 0.66194123, 0.654184103
201 };
202
203 /** Gain bandwidth broadening table */
204 static const float gain_bw_tab[10]={
205 0.90625, 0.821289063, 0.74432373, 0.674499512, 0.61126709,
206 0.553955078, 0.50201416, 0.454956055, 0.41229248, 0.373657227
207 };
208
209 #endif /* FFMPEG_RA288_H */