1 /* 2 * Copyright (C) 2019 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.inputmethod.leanback.voice; 18 19 /** 20 * Keeps track of the speech level as last observed by the recognition 21 * engine as microphone data flows through it. Can be polled by the UI to 22 * animate its views. 23 */ 24 public class SpeechLevelSource { 25 private volatile int mSpeechLevel; 26 setSpeechLevel(int speechLevel)27 public void setSpeechLevel(int speechLevel) { 28 if (speechLevel < 0 || speechLevel > 100) { 29 throw new IllegalArgumentException(); 30 } 31 mSpeechLevel = speechLevel; 32 } 33 getSpeechLevel()34 public int getSpeechLevel() { 35 return mSpeechLevel; 36 } 37 reset()38 public void reset() { 39 mSpeechLevel = -1; 40 } 41 isValid()42 public boolean isValid() { 43 return mSpeechLevel > 0; 44 } 45 } 46 47