LVDBE_Tables.c revision d918324d44aa48b3b064ea9b87d0c520c38f15a9 
1/*
2 * Copyright (C) 2004-2010 NXP Software
3 * Copyright (C) 2010 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18
19/************************************************************************************/
20/*                                                                                  */
21/*    Includes                                                                      */
22/*                                                                                  */
23/************************************************************************************/
24
25#include "LVDBE.h"
26#include "LVDBE_Coeffs.h"               /* Filter coefficients */
27#include "BIQUAD.h"
28
29
30/************************************************************************************/
31/*                                                                                  */
32/*    Coefficients constant table                                                   */
33/*                                                                                  */
34/************************************************************************************/
35
36/*
37 * High Pass Filter Coefficient table
38 */
39const BQ_C32_Coefs_t LVDBE_HPF_Table[] = {
40    /* Coefficients for 55Hz centre frequency */
41    {HPF_Fs8000_Fc55_A2,                /* 8kS/s coefficients */
42     HPF_Fs8000_Fc55_A1,
43     HPF_Fs8000_Fc55_A0,
44     -HPF_Fs8000_Fc55_B2,
45     -HPF_Fs8000_Fc55_B1},
46    {HPF_Fs11025_Fc55_A2,                /* 11kS/s coefficients */
47     HPF_Fs11025_Fc55_A1,
48     HPF_Fs11025_Fc55_A0,
49     -HPF_Fs11025_Fc55_B2,
50     -HPF_Fs11025_Fc55_B1},
51    {HPF_Fs12000_Fc55_A2,                /* 12kS/s coefficients */
52     HPF_Fs12000_Fc55_A1,
53     HPF_Fs12000_Fc55_A0,
54     -HPF_Fs12000_Fc55_B2,
55     -HPF_Fs12000_Fc55_B1},
56    {HPF_Fs16000_Fc55_A2,                /* 16kS/s coefficients */
57     HPF_Fs16000_Fc55_A1,
58     HPF_Fs16000_Fc55_A0,
59     -HPF_Fs16000_Fc55_B2,
60     -HPF_Fs16000_Fc55_B1},
61    {HPF_Fs22050_Fc55_A2,                /* 22kS/s coefficients */
62     HPF_Fs22050_Fc55_A1,
63     HPF_Fs22050_Fc55_A0,
64     -HPF_Fs22050_Fc55_B2,
65     -HPF_Fs22050_Fc55_B1},
66    {HPF_Fs24000_Fc55_A2,                /* 24kS/s coefficients */
67     HPF_Fs24000_Fc55_A1,
68     HPF_Fs24000_Fc55_A0,
69     -HPF_Fs24000_Fc55_B2,
70     -HPF_Fs24000_Fc55_B1},
71    {HPF_Fs32000_Fc55_A2,                /* 32kS/s coefficients */
72     HPF_Fs32000_Fc55_A1,
73     HPF_Fs32000_Fc55_A0,
74     -HPF_Fs32000_Fc55_B2,
75     -HPF_Fs32000_Fc55_B1},
76    {HPF_Fs44100_Fc55_A2,                /* 44kS/s coefficients */
77     HPF_Fs44100_Fc55_A1,
78     HPF_Fs44100_Fc55_A0,
79     -HPF_Fs44100_Fc55_B2,
80     -HPF_Fs44100_Fc55_B1},
81    {HPF_Fs48000_Fc55_A2,                /* 48kS/s coefficients */
82     HPF_Fs48000_Fc55_A1,
83     HPF_Fs48000_Fc55_A0,
84     -HPF_Fs48000_Fc55_B2,
85     -HPF_Fs48000_Fc55_B1},
86
87    /* Coefficients for 66Hz centre frequency */
88    {HPF_Fs8000_Fc66_A2,                /* 8kS/s coefficients */
89     HPF_Fs8000_Fc66_A1,
90     HPF_Fs8000_Fc66_A0,
91     -HPF_Fs8000_Fc66_B2,
92     -HPF_Fs8000_Fc66_B1},
93    {HPF_Fs11025_Fc66_A2,                /* 11kS/s coefficients */
94     HPF_Fs11025_Fc66_A1,
95     HPF_Fs11025_Fc66_A0,
96     -HPF_Fs11025_Fc66_B2,
97     -HPF_Fs11025_Fc66_B1},
98    {HPF_Fs12000_Fc66_A2,                /* 12kS/s coefficients */
99     HPF_Fs12000_Fc66_A1,
100     HPF_Fs12000_Fc66_A0,
101     -HPF_Fs12000_Fc66_B2,
102     -HPF_Fs12000_Fc66_B1},
103    {HPF_Fs16000_Fc66_A2,                /* 16kS/s coefficients */
104     HPF_Fs16000_Fc66_A1,
105     HPF_Fs16000_Fc66_A0,
106     -HPF_Fs16000_Fc66_B2,
107     -HPF_Fs16000_Fc66_B1},
108    {HPF_Fs22050_Fc66_A2,                /* 22kS/s coefficients */
109     HPF_Fs22050_Fc66_A1,
110     HPF_Fs22050_Fc66_A0,
111     -HPF_Fs22050_Fc66_B2,
112     -HPF_Fs22050_Fc66_B1},
113    {HPF_Fs24000_Fc66_A2,                /* 24kS/s coefficients */
114     HPF_Fs24000_Fc66_A1,
115     HPF_Fs24000_Fc66_A0,
116     -HPF_Fs24000_Fc66_B2,
117     -HPF_Fs24000_Fc66_B1},
118    {HPF_Fs32000_Fc66_A2,                /* 32kS/s coefficients */
119     HPF_Fs32000_Fc66_A1,
120     HPF_Fs32000_Fc66_A0,
121     -HPF_Fs32000_Fc66_B2,
122     -HPF_Fs32000_Fc66_B1},
123    {HPF_Fs44100_Fc66_A2,                /* 44kS/s coefficients */
124     HPF_Fs44100_Fc66_A1,
125     HPF_Fs44100_Fc66_A0,
126     -HPF_Fs44100_Fc66_B2,
127     -HPF_Fs44100_Fc66_B1},
128    {HPF_Fs48000_Fc66_A2,                /* 48kS/s coefficients */
129     HPF_Fs48000_Fc66_A1,
130     HPF_Fs48000_Fc66_A0,
131     -HPF_Fs48000_Fc66_B2,
132     -HPF_Fs48000_Fc66_B1},
133
134    /* Coefficients for 78Hz centre frequency */
135    {HPF_Fs8000_Fc78_A2,                /* 8kS/s coefficients */
136     HPF_Fs8000_Fc78_A1,
137     HPF_Fs8000_Fc78_A0,
138     -HPF_Fs8000_Fc78_B2,
139     -HPF_Fs8000_Fc78_B1},
140    {HPF_Fs11025_Fc78_A2,                /* 11kS/s coefficients */
141     HPF_Fs11025_Fc78_A1,
142     HPF_Fs11025_Fc78_A0,
143     -HPF_Fs11025_Fc78_B2,
144     -HPF_Fs11025_Fc78_B1},
145    {HPF_Fs12000_Fc78_A2,                /* 12kS/s coefficients */
146     HPF_Fs12000_Fc78_A1,
147     HPF_Fs12000_Fc78_A0,
148     -HPF_Fs12000_Fc78_B2,
149     -HPF_Fs12000_Fc78_B1},
150    {HPF_Fs16000_Fc78_A2,                /* 16kS/s coefficients */
151     HPF_Fs16000_Fc78_A1,
152     HPF_Fs16000_Fc78_A0,
153     -HPF_Fs16000_Fc78_B2,
154     -HPF_Fs16000_Fc78_B1},
155    {HPF_Fs22050_Fc78_A2,                /* 22kS/s coefficients */
156     HPF_Fs22050_Fc78_A1,
157     HPF_Fs22050_Fc78_A0,
158     -HPF_Fs22050_Fc78_B2,
159     -HPF_Fs22050_Fc78_B1},
160    {HPF_Fs24000_Fc78_A2,                /* 24kS/s coefficients */
161     HPF_Fs24000_Fc78_A1,
162     HPF_Fs24000_Fc78_A0,
163     -HPF_Fs24000_Fc78_B2,
164     -HPF_Fs24000_Fc78_B1},
165    {HPF_Fs32000_Fc78_A2,                /* 32kS/s coefficients */
166     HPF_Fs32000_Fc78_A1,
167     HPF_Fs32000_Fc78_A0,
168     -HPF_Fs32000_Fc78_B2,
169     -HPF_Fs32000_Fc78_B1},
170    {HPF_Fs44100_Fc78_A2,                /* 44kS/s coefficients */
171     HPF_Fs44100_Fc78_A1,
172     HPF_Fs44100_Fc78_A0,
173     -HPF_Fs44100_Fc78_B2,
174     -HPF_Fs44100_Fc78_B1},
175    {HPF_Fs48000_Fc78_A2,                /* 48kS/s coefficients */
176     HPF_Fs48000_Fc78_A1,
177     HPF_Fs48000_Fc78_A0,
178     -HPF_Fs48000_Fc78_B2,
179     -HPF_Fs48000_Fc78_B1},
180
181    /* Coefficients for 90Hz centre frequency */
182    {HPF_Fs8000_Fc90_A2,                /* 8kS/s coefficients */
183     HPF_Fs8000_Fc90_A1,
184     HPF_Fs8000_Fc90_A0,
185     -HPF_Fs8000_Fc90_B2,
186     -HPF_Fs8000_Fc90_B1},
187    {HPF_Fs11025_Fc90_A2,                /* 11kS/s coefficients */
188     HPF_Fs11025_Fc90_A1,
189     HPF_Fs11025_Fc90_A0,
190     -HPF_Fs11025_Fc90_B2,
191     -HPF_Fs11025_Fc90_B1},
192    {HPF_Fs12000_Fc90_A2,                /* 12kS/s coefficients */
193     HPF_Fs12000_Fc90_A1,
194     HPF_Fs12000_Fc90_A0,
195     -HPF_Fs12000_Fc90_B2,
196     -HPF_Fs12000_Fc90_B1},
197    {HPF_Fs16000_Fc90_A2,                /* 16kS/s coefficients */
198     HPF_Fs16000_Fc90_A1,
199     HPF_Fs16000_Fc90_A0,
200     -HPF_Fs16000_Fc90_B2,
201     -HPF_Fs16000_Fc90_B1},
202    {HPF_Fs22050_Fc90_A2,                /* 22kS/s coefficients */
203     HPF_Fs22050_Fc90_A1,
204     HPF_Fs22050_Fc90_A0,
205     -HPF_Fs22050_Fc90_B2,
206     -HPF_Fs22050_Fc90_B1},
207    {HPF_Fs24000_Fc90_A2,                /* 24kS/s coefficients */
208     HPF_Fs24000_Fc90_A1,
209     HPF_Fs24000_Fc90_A0,
210     -HPF_Fs24000_Fc90_B2,
211     -HPF_Fs24000_Fc90_B1},
212    {HPF_Fs32000_Fc90_A2,                /* 32kS/s coefficients */
213     HPF_Fs32000_Fc90_A1,
214     HPF_Fs32000_Fc90_A0,
215     -HPF_Fs32000_Fc90_B2,
216     -HPF_Fs32000_Fc90_B1},
217    {HPF_Fs44100_Fc90_A2,                /* 44kS/s coefficients */
218     HPF_Fs44100_Fc90_A1,
219     HPF_Fs44100_Fc90_A0,
220     -HPF_Fs44100_Fc90_B2,
221     -HPF_Fs44100_Fc90_B1},
222    {HPF_Fs48000_Fc90_A2,                /* 48kS/s coefficients */
223     HPF_Fs48000_Fc90_A1,
224     HPF_Fs48000_Fc90_A0,
225     -HPF_Fs48000_Fc90_B2,
226     -HPF_Fs48000_Fc90_B1}};
227
228/*
229 * Band Pass Filter coefficient table
230 */
231const BP_C32_Coefs_t LVDBE_BPF_Table[] = {
232    /* Coefficients for 55Hz centre frequency */
233    {BPF_Fs8000_Fc55_A0,                /* 8kS/s coefficients */
234     -BPF_Fs8000_Fc55_B2,
235     -BPF_Fs8000_Fc55_B1},
236    {BPF_Fs11025_Fc55_A0,                /* 11kS/s coefficients */
237     -BPF_Fs11025_Fc55_B2,
238     -BPF_Fs11025_Fc55_B1},
239    {BPF_Fs12000_Fc55_A0,                /* 12kS/s coefficients */
240     -BPF_Fs12000_Fc55_B2,
241     -BPF_Fs12000_Fc55_B1},
242    {BPF_Fs16000_Fc55_A0,                /* 16kS/s coefficients */
243     -BPF_Fs16000_Fc55_B2,
244     -BPF_Fs16000_Fc55_B1},
245    {BPF_Fs22050_Fc55_A0,                /* 22kS/s coefficients */
246     -BPF_Fs22050_Fc55_B2,
247     -BPF_Fs22050_Fc55_B1},
248    {BPF_Fs24000_Fc55_A0,                /* 24kS/s coefficients */
249     -BPF_Fs24000_Fc55_B2,
250     -BPF_Fs24000_Fc55_B1},
251    {BPF_Fs32000_Fc55_A0,                /* 32kS/s coefficients */
252     -BPF_Fs32000_Fc55_B2,
253     -BPF_Fs32000_Fc55_B1},
254    {BPF_Fs44100_Fc55_A0,                /* 44kS/s coefficients */
255     -BPF_Fs44100_Fc55_B2,
256     -BPF_Fs44100_Fc55_B1},
257    {BPF_Fs48000_Fc55_A0,                /* 48kS/s coefficients */
258     -BPF_Fs48000_Fc55_B2,
259     -BPF_Fs48000_Fc55_B1},
260
261    /* Coefficients for 66Hz centre frequency */
262    {BPF_Fs8000_Fc66_A0,                /* 8kS/s coefficients */
263     -BPF_Fs8000_Fc66_B2,
264     -BPF_Fs8000_Fc66_B1},
265    {BPF_Fs11025_Fc66_A0,                /* 11kS/s coefficients */
266     -BPF_Fs11025_Fc66_B2,
267     -BPF_Fs11025_Fc66_B1},
268    {BPF_Fs12000_Fc66_A0,                /* 12kS/s coefficients */
269     -BPF_Fs12000_Fc66_B2,
270     -BPF_Fs12000_Fc66_B1},
271    {BPF_Fs16000_Fc66_A0,                /* 16kS/s coefficients */
272     -BPF_Fs16000_Fc66_B2,
273     -BPF_Fs16000_Fc66_B1},
274    {BPF_Fs22050_Fc66_A0,                /* 22kS/s coefficients */
275     -BPF_Fs22050_Fc66_B2,
276     -BPF_Fs22050_Fc66_B1},
277    {BPF_Fs24000_Fc66_A0,                /* 24kS/s coefficients */
278     -BPF_Fs24000_Fc66_B2,
279     -BPF_Fs24000_Fc66_B1},
280    {BPF_Fs32000_Fc66_A0,                /* 32kS/s coefficients */
281     -BPF_Fs32000_Fc66_B2,
282     -BPF_Fs32000_Fc66_B1},
283    {BPF_Fs44100_Fc66_A0,                /* 44kS/s coefficients */
284     -BPF_Fs44100_Fc66_B2,
285     -BPF_Fs44100_Fc66_B1},
286    {BPF_Fs48000_Fc66_A0,                /* 48kS/s coefficients */
287     -BPF_Fs48000_Fc66_B2,
288     -BPF_Fs48000_Fc66_B1},
289
290    /* Coefficients for 78Hz centre frequency */
291    {BPF_Fs8000_Fc78_A0,                /* 8kS/s coefficients */
292     -BPF_Fs8000_Fc78_B2,
293     -BPF_Fs8000_Fc78_B1},
294    {BPF_Fs11025_Fc78_A0,                /* 11kS/s coefficients */
295     -BPF_Fs11025_Fc78_B2,
296     -BPF_Fs11025_Fc78_B1},
297    {BPF_Fs12000_Fc78_A0,                /* 12kS/s coefficients */
298     -BPF_Fs12000_Fc78_B2,
299     -BPF_Fs12000_Fc78_B1},
300    {BPF_Fs16000_Fc78_A0,                /* 16kS/s coefficients */
301     -BPF_Fs16000_Fc78_B2,
302     -BPF_Fs16000_Fc78_B1},
303    {BPF_Fs22050_Fc78_A0,                /* 22kS/s coefficients */
304     -BPF_Fs22050_Fc78_B2,
305     -BPF_Fs22050_Fc78_B1},
306    {BPF_Fs24000_Fc78_A0,                /* 24kS/s coefficients */
307     -BPF_Fs24000_Fc78_B2,
308     -BPF_Fs24000_Fc78_B1},
309    {BPF_Fs32000_Fc78_A0,                /* 32kS/s coefficients */
310     -BPF_Fs32000_Fc78_B2,
311     -BPF_Fs32000_Fc78_B1},
312    {BPF_Fs44100_Fc78_A0,                /* 44kS/s coefficients */
313     -BPF_Fs44100_Fc78_B2,
314     -BPF_Fs44100_Fc78_B1},
315    {BPF_Fs48000_Fc78_A0,                /* 48kS/s coefficients */
316     -BPF_Fs48000_Fc78_B2,
317     -BPF_Fs48000_Fc78_B1},
318
319    /* Coefficients for 90Hz centre frequency */
320    {BPF_Fs8000_Fc90_A0,                /* 8kS/s coefficients */
321     -BPF_Fs8000_Fc90_B2,
322     -BPF_Fs8000_Fc90_B1},
323    {BPF_Fs11025_Fc90_A0,                /* 11kS/s coefficients */
324     -BPF_Fs11025_Fc90_B2,
325     -BPF_Fs11025_Fc90_B1},
326    {BPF_Fs12000_Fc90_A0,                /* 12kS/s coefficients */
327     -BPF_Fs12000_Fc90_B2,
328     -BPF_Fs12000_Fc90_B1},
329    {BPF_Fs16000_Fc90_A0,                /* 16kS/s coefficients */
330     -BPF_Fs16000_Fc90_B2,
331     -BPF_Fs16000_Fc90_B1},
332    {BPF_Fs22050_Fc90_A0,                /* 22kS/s coefficients */
333     -BPF_Fs22050_Fc90_B2,
334     -BPF_Fs22050_Fc90_B1},
335    {BPF_Fs24000_Fc90_A0,                /* 24kS/s coefficients */
336     -BPF_Fs24000_Fc90_B2,
337     -BPF_Fs24000_Fc90_B1},
338    {BPF_Fs32000_Fc90_A0,                /* 32kS/s coefficients */
339     -BPF_Fs32000_Fc90_B2,
340     -BPF_Fs32000_Fc90_B1},
341    {BPF_Fs44100_Fc90_A0,                /* 44kS/s coefficients */
342     -BPF_Fs44100_Fc90_B2,
343     -BPF_Fs44100_Fc90_B1},
344    {BPF_Fs48000_Fc90_A0,                /* 48kS/s coefficients */
345     -BPF_Fs48000_Fc90_B2,
346     -BPF_Fs48000_Fc90_B1}};
347
348
349/************************************************************************************/
350/*                                                                                  */
351/*    AGC constant tables                                                           */
352/*                                                                                  */
353/************************************************************************************/
354
355/* Attack time (signal too large) */
356const LVM_INT16 LVDBE_AGC_ATTACK_Table[] = {
357    AGC_ATTACK_Fs8000,
358    AGC_ATTACK_Fs11025,
359    AGC_ATTACK_Fs12000,
360    AGC_ATTACK_Fs16000,
361    AGC_ATTACK_Fs22050,
362    AGC_ATTACK_Fs24000,
363    AGC_ATTACK_Fs32000,
364    AGC_ATTACK_Fs44100,
365    AGC_ATTACK_Fs48000};
366
367/* Decay time (signal too small) */
368const LVM_INT16 LVDBE_AGC_DECAY_Table[] = {
369    AGC_DECAY_Fs8000,
370    AGC_DECAY_Fs11025,
371    AGC_DECAY_Fs12000,
372    AGC_DECAY_Fs16000,
373    AGC_DECAY_Fs22050,
374    AGC_DECAY_Fs24000,
375    AGC_DECAY_Fs32000,
376    AGC_DECAY_Fs44100,
377    AGC_DECAY_Fs48000};
378
379/* Gain for use without the high pass filter */
380const LVM_INT32 LVDBE_AGC_GAIN_Table[] = {
381    AGC_GAIN_0dB,
382    AGC_GAIN_1dB,
383    AGC_GAIN_2dB,
384    AGC_GAIN_3dB,
385    AGC_GAIN_4dB,
386    AGC_GAIN_5dB,
387    AGC_GAIN_6dB,
388    AGC_GAIN_7dB,
389    AGC_GAIN_8dB,
390    AGC_GAIN_9dB,
391    AGC_GAIN_10dB,
392    AGC_GAIN_11dB,
393    AGC_GAIN_12dB,
394    AGC_GAIN_13dB,
395    AGC_GAIN_14dB,
396    AGC_GAIN_15dB};
397
398/* Gain for use with the high pass filter */
399const LVM_INT32 LVDBE_AGC_HPFGAIN_Table[] = {
400    AGC_HPFGAIN_0dB,
401    AGC_HPFGAIN_1dB,
402    AGC_HPFGAIN_2dB,
403    AGC_HPFGAIN_3dB,
404    AGC_HPFGAIN_4dB,
405    AGC_HPFGAIN_5dB,
406    AGC_HPFGAIN_6dB,
407    AGC_HPFGAIN_7dB,
408    AGC_HPFGAIN_8dB,
409    AGC_HPFGAIN_9dB,
410    AGC_HPFGAIN_10dB,
411    AGC_HPFGAIN_11dB,
412    AGC_HPFGAIN_12dB,
413    AGC_HPFGAIN_13dB,
414    AGC_HPFGAIN_14dB,
415    AGC_HPFGAIN_15dB};
416
417
418/************************************************************************************/
419/*                                                                                  */
420/*    Volume control gain and time constant tables                                  */
421/*                                                                                  */
422/************************************************************************************/
423
424/* dB to linear conversion table */
425const LVM_INT16 LVDBE_VolumeTable[] = {
426    0x4000,             /* -6dB */
427    0x47FB,             /* -5dB */
428    0x50C3,             /* -4dB */
429    0x5A9E,             /* -3dB */
430    0x65AD,             /* -2dB */
431    0x7215,             /* -1dB */
432    0x7FFF};            /*  0dB */
433
434const LVM_INT16 LVDBE_VolumeTCTable[] = {
435    VOL_TC_Fs8000,
436    VOL_TC_Fs11025,
437    VOL_TC_Fs12000,
438    VOL_TC_Fs16000,
439    VOL_TC_Fs22050,
440    VOL_TC_Fs24000,
441    VOL_TC_Fs32000,
442    VOL_TC_Fs44100,
443    VOL_TC_Fs48000};
444
445const LVM_INT16 LVDBE_MixerTCTable[] = {
446    MIX_TC_Fs8000,
447    MIX_TC_Fs11025,
448    MIX_TC_Fs12000,
449    MIX_TC_Fs16000,
450    MIX_TC_Fs22050,
451    MIX_TC_Fs24000,
452    MIX_TC_Fs32000,
453    MIX_TC_Fs44100,
454    MIX_TC_Fs48000};
455
456
457