| /* |
| * Copyright (C) 2010 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. |
| */ |
| |
| package com.android.cts.verifier.audioquality; |
| |
| /** |
| * Interface to native (C++) DSP code. |
| */ |
| public class Native { |
| public native short[] generateSinusoid(float freq, float duration, |
| float sampleRate, float amplitude, float ramp); |
| public native float[] measureRms(short[] pcm, float sampleRate, |
| float onsetThresh); |
| public native float[] glitchTest(float sampleRate, float stimFreq, |
| float onsetThresh, float dbSnrThresh, short[] pcm); |
| public native float[] overflowCheck(short[] pcm, float sampleRate); |
| public native float[] compareSpectra(short[] pcm, short[] refPcm, |
| float sampleRate); |
| public native float linearityTest(short[][] pcms, |
| float sampleRate, float dbStepSize, int referenceStim); |
| public native float linearityTestRms(short[][] pcms, |
| float sampleRate, float dbStepSize); |
| |
| // The following indexes must match those in wrapper.cc |
| public static final int MEASURE_RMS_RMS = 0; |
| public static final int MEASURE_RMS_STD_DEV = 1; |
| public static final int MEASURE_RMS_DURATION = 2; |
| public static final int MEASURE_RMS_MEAN = 3; |
| |
| public static final int OVERFLOW_DELTAS = 0; |
| public static final int OVERFLOW_ERROR = 1; |
| public static final int OVERFLOW_DURATION = 2; |
| public static final int OVERFLOW_ONSET = 3; |
| public static final int OVERFLOW_OFFSET = 4; |
| public static final int OVERFLOW_MAX = 5; |
| public static final int OVERFLOW_MIN = 6; |
| |
| public static final int GLITCH_COUNT = 0; |
| public static final int GLITCH_ERROR = 1; |
| public static final int GLITCH_DURATION = 2; |
| |
| public static final int SPECTRUM_MAX_DEVIATION = 0; |
| public static final int SPECTRUM_ERROR = 1; |
| public static final int SPECTRUM_RMS_DEVIATION = 2; |
| |
| private static Native mInstance = null; |
| |
| static { |
| System.loadLibrary("audioquality"); |
| } |
| |
| private Native() {} |
| |
| public static Native getInstance() { |
| if (mInstance == null) { |
| mInstance = new Native(); |
| } |
| return mInstance; |
| } |
| } |