1 /* 2 * Copyright 2016 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.media; 18 19 import android.media.MicrophoneInfoData; 20 21 /** 22 * Native code must specify namespace media (media::IAudioRecord) when referring to this class. 23 * 24 * {@hide} 25 */ 26 interface IAudioRecord { 27 28 /* After it's created the track is not active. Call start() to 29 * make it active. 30 */ start(int event, int triggerSession)31 void start(int /*AudioSystem::sync_event_t*/ event, 32 int /*audio_session_t*/ triggerSession); 33 34 /* Stop a track. If set, the callback will cease being called and 35 * obtainBuffer will return an error. Buffers that are already released 36 * will be processed, unless flush() is called. 37 */ stop()38 void stop(); 39 40 /* Get a list of current active microphones. 41 */ getActiveMicrophones(out MicrophoneInfoData[] activeMicrophones)42 void getActiveMicrophones(out MicrophoneInfoData[] activeMicrophones); 43 44 /* Set the microphone direction (for processing). 45 */ setPreferredMicrophoneDirection(int direction)46 void setPreferredMicrophoneDirection(int /*audio_microphone_direction_t*/ direction); 47 48 /* Set the microphone zoom (for processing). 49 */ setPreferredMicrophoneFieldDimension(float zoom)50 void setPreferredMicrophoneFieldDimension(float zoom); 51 shareAudioHistory(@tf8InCpp String sharedAudioPackageName, long sharedAudioStartMs)52 void shareAudioHistory(@utf8InCpp String sharedAudioPackageName, long sharedAudioStartMs); 53 } 54