1 /* 2 * Copyright (C) 2010 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 package com.android.cts.verifier.audioquality; 18 19 import android.content.Context; 20 import android.content.res.AssetManager; 21 import android.util.Log; 22 23 import java.io.IOException; 24 import java.io.InputStream; 25 26 public class AudioAssets { 27 28 private static final String TAG = "AudioQualityVerifier"; 29 30 private static final String STIM_BASENAME = "audioquality/stim_dt_"; 31 32 public static byte[] getStim(Context context, int which) { 33 return readAsset(context, STIM_BASENAME + which); 34 } 35 36 public static byte[] getPinkNoise(Context context, int ampl, int duration) { 37 return readAsset(context, "audioquality/pink_" + ampl + "_" + duration + "s"); 38 } 39 40 private static byte[] readAsset(Context context, String filename) { 41 AssetManager assetManager = context.getAssets(); 42 InputStream ais; 43 try { 44 ais = assetManager.open(filename); 45 } catch (IOException e) { 46 Log.e(TAG, "Cannot load asset " + filename, e); 47 return null; 48 } 49 byte[] buffer = Utils.readFile(ais); 50 return buffer; 51 } 52 } 53
