112bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani/* 212bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * Copyright (C) 2012 The Android Open Source Project 312bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * 412bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * Licensed under the Apache License, Version 2.0 (the "License"); 512bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * you may not use this file except in compliance with the License. 612bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * You may obtain a copy of the License at 712bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * 812bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * http://www.apache.org/licenses/LICENSE-2.0 912bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * 1012bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * Unless required by applicable law or agreed to in writing, software 1112bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * distributed under the License is distributed on an "AS IS" BASIS, 1212bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1312bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * See the License for the specific language governing permissions and 1412bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani * limitations under the License. 1512bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani */ 1612bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani 1712bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani#define LOG_TAG "ResamplerCoefficients" 185dea84c39b5e790315b525009c635806e33c97e0Glenn Kasten//#define LOG_NDEBUG 0 1912bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani 209bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kasten#include <utils/Log.h> 219bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kasten 229bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kasten#include "filter_coefficients.h" 239bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kasten 249bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kastenconst int32_t RESAMPLE_FIR_NUM_COEF = 16; 259bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kastenconst int32_t RESAMPLE_FIR_LERP_INT_BITS = 7; 2612bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani 2712bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Maniusing namespace android; 289bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kasten 2912bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani#ifdef __cplusplus 3012bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Maniextern "C" { 3112bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani#endif 329bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kasten 3312bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Maniconst int32_t* readResamplerCoefficients(bool upSample) { 3412bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani 3512bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani ALOGV("readResamplerCoefficients"); 369bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kasten if (upSample) { 3770dc7025fac462e502803108e55911e6b3301bfeGlenn Kasten return (const int32_t *) up_sampler_filter_coefficients; 389bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kasten } else { 3970dc7025fac462e502803108e55911e6b3301bfeGlenn Kasten return (const int32_t *) dn_sampler_filter_coefficients; 4012bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani } 4112bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani 4212bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani} 4312bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani 4412bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Maniint32_t readResampleFirNumCoeff() { 4512bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani return RESAMPLE_FIR_NUM_COEF; 4612bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani} 4712bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani 4812bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Maniint32_t readResampleFirLerpIntBits() { 499bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kasten return RESAMPLE_FIR_LERP_INT_BITS; 5012bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani} 519bcb476a95a26e62f5706d1f00f4873cf44f9e04Glenn Kasten 5212bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani#ifdef __cplusplus 5312bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani} 5412bff5dd87e6b863482e6bfd9f4561078ebcf3f0SathishKumar Mani#endif 55