1 /* 2 * Copyright (C) 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 #ifndef _AUDIORECORDER_H_ 18 #define _AUDIORECORDER_H_ 19 20 #include <SLES/OpenSLES.h> 21 #include <SLES/OpenSLES_Android.h> 22 23 namespace ndkaudio { 24 25 class AudioSink; 26 27 class AudioRecorder { 28 public: 29 AudioRecorder(); 30 ~AudioRecorder(); 31 32 void Open(int numChannels, AudioSink* sink); 33 void Close(); 34 35 void RealizeRecorder(); 36 void RealizeRoutingProxy(); 37 38 void Start(); 39 void Stop(); 40 41 inline bool isRecording() { 42 return recording_; 43 } 44 inline AudioSink* getSink() { 45 return sink_; 46 } 47 48 SLAndroidConfigurationItf getConfigItf() { 49 return configItf_; 50 } 51 52 // public, but don't call directly (called by the OSLES callback) 53 SLresult enqueBuffer(); 54 55 int GetNumBufferSamples() { 56 return numBufferSamples_; 57 } 58 float* GetRecordBuffer(); 59 60 private: 61 AudioSink* sink_; 62 bool recording_; 63 64 int sampleRate_; 65 int numChannels_; 66 67 int numBufferSamples_; 68 69 // OpenSL ES stuff 70 // - Engine 71 SLObjectItf engineObj_; 72 SLEngineItf engineItf_; 73 74 // - Recorder 75 SLObjectItf recorderObj_; 76 SLRecordItf recorderItf_; 77 SLAndroidSimpleBufferQueueItf recBuffQueueItf_; 78 SLAndroidConfigurationItf configItf_; 79 }; 80 81 } // namespace ndkaudio 82 83 #endif // _AUDIORECORDER_H_ 84
