1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #define LOG_TAG "ResamplerCoefficients"
18 //#define LOG_NDEBUG 0
19 
20 #include <utils/Log.h>
21 
22 #include "filter_coefficients.h"
23 
24 const int32_t RESAMPLE_FIR_NUM_COEF = 16;
25 const int32_t RESAMPLE_FIR_LERP_INT_BITS = 7;
26 
27 using namespace android;
28 
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32 
readResamplerCoefficients(bool upSample)33 const int32_t* readResamplerCoefficients(bool upSample) {
34 
35     ALOGV("readResamplerCoefficients");
36     if (upSample) {
37         return (const int32_t *) up_sampler_filter_coefficients;
38     } else {
39         return (const int32_t *) dn_sampler_filter_coefficients;
40     }
41 
42 }
43 
readResampleFirNumCoeff()44 int32_t readResampleFirNumCoeff() {
45     return RESAMPLE_FIR_NUM_COEF;
46 }
47 
readResampleFirLerpIntBits()48 int32_t readResampleFirLerpIntBits() {
49     return RESAMPLE_FIR_LERP_INT_BITS;
50 }
51 
52 #ifdef __cplusplus
53 }
54 #endif
55