1 /* 2 * Copyright (C) 2020 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 android.recognitionservice.service; 18 19 import android.app.AppOpsManager; 20 import android.content.Intent; 21 import android.media.MediaRecorder; 22 import android.os.Bundle; 23 import android.os.RemoteException; 24 import android.speech.RecognitionService; 25 import android.speech.RecognizerIntent; 26 import android.util.Log; 27 28 import java.io.File; 29 import java.io.IOException; 30 31 /** 32 * Implementation of {@link RecognitionService} used in the tests. 33 */ 34 public class CtsVoiceRecognitionService extends RecognitionService { 35 36 private final String TAG = "CtsVoiceRecognitionService"; 37 38 private MediaRecorder mMediaRecorder; 39 private File mOutputFile; 40 41 @Override onCancel(Callback listener)42 protected void onCancel(Callback listener) { 43 // No-op. 44 } 45 46 @Override onStopListening(Callback listener)47 protected void onStopListening(Callback listener) { 48 // No-op. 49 } 50 51 @Override onStartListening(Intent recognizerIntent, Callback listener)52 protected void onStartListening(Intent recognizerIntent, Callback listener) { 53 Log.d(TAG, "onStartListening"); 54 if (listener != null) { 55 // We only want to make sure onStartListening() is called successfully, so it returns 56 // empty bundle here. 57 try { 58 listener.results(Bundle.EMPTY); 59 Log.i(TAG, "Invoked #results"); 60 } catch (RemoteException e) { 61 Log.e(TAG, "Failed to invoke #results", e); 62 } 63 } 64 mediaRecorderReady(); 65 blameCameraPermission(recognizerIntent, listener.getCallingUid()); 66 try { 67 mMediaRecorder.prepare(); 68 mMediaRecorder.start(); 69 } catch (IOException e) { 70 // We focus on the open mic behavior, wedon't need to real record and save to the file. 71 // Because we don't set the output the output file. The IOException occurred when start. 72 // We catch this and reset the media record. 73 e.printStackTrace(); 74 mMediaRecorder.release(); 75 mMediaRecorder = null; 76 } 77 } 78 79 @Override onDestroy()80 public void onDestroy() { 81 Log.d(TAG, "onDestroy"); 82 stopRecord(); 83 super.onDestroy(); 84 } 85 86 // RecognitionService try to blame non-mic permission blameCameraPermission(Intent recognizerIntent, int callingPackageUid)87 private void blameCameraPermission(Intent recognizerIntent, int callingPackageUid) { 88 final String callingPackage = 89 recognizerIntent.getStringExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE); 90 final AppOpsManager appOpsManager = getSystemService(AppOpsManager.class); 91 appOpsManager.noteProxyOpNoThrow(AppOpsManager.OPSTR_CAMERA, callingPackage, 92 callingPackageUid, /*attributionTag*/ null, /*message*/ null); 93 } 94 mediaRecorderReady()95 private void mediaRecorderReady() { 96 mMediaRecorder = new MediaRecorder(); 97 mOutputFile = new File(getExternalCacheDir(), "test.3gp"); 98 mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); 99 mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); 100 mMediaRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB); 101 mMediaRecorder.setOutputFile(mOutputFile); 102 } 103 stopRecord()104 private void stopRecord() { 105 if (mMediaRecorder != null) { 106 mMediaRecorder.stop(); 107 mMediaRecorder.release(); 108 mMediaRecorder = null; 109 } 110 if (mOutputFile != null && mOutputFile.exists()) { 111 mOutputFile.delete(); 112 } 113 } 114 } 115