xref: /frameworks/av/services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <dnsampler_filter_coefficients_x128_10112011.h>
#include <resampler_filter_coefficients_10042011.h>
#undef LOG_TAG
#include <utils/Log.h>
//#include "common_log.h"
#define LOG_TAG "ResamplerCoefficients"
#define LOG_NDEBUG 0

const int32_t RESAMPLE_FIR_NUM_COEF       = 16;
const int32_t RESAMPLE_FIR_LERP_INT_BITS  = 7;

using namespace android;
#ifdef __cplusplus
extern "C" {
#endif
const int32_t* readResamplerCoefficients(bool upSample) {

    ALOGV("readResamplerCoefficients");
    if(upSample) {
        return resampler_filter_coefficients_10042011;
    }
    else {
        return dnsampler_filter_coefficients_x128_10112011;
   }

}

int32_t readResampleFirNumCoeff() {

    return RESAMPLE_FIR_NUM_COEF;
}

int32_t readResampleFirLerpIntBits() {

   return RESAMPLE_FIR_LERP_INT_BITS;
}
#ifdef __cplusplus
}
#endif