1 /* 2 * Copyright (C) 2022 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 #pragma once 18 19 #ifndef SL_PREFETCHEVENT_NONE // This is defined in slesl_allinclusive, which isn't guarded 20 #include "sles_allinclusive.h" 21 #endif 22 23 #include "media/AudioRecord.h" 24 25 void audioRecorder_handleOverrun_lockRecord(CAudioRecorder* ar); 26 void audioRecorder_handleNewPos_lockRecord(CAudioRecorder* ar); 27 void audioRecorder_handleMarker_lockRecord(CAudioRecorder* ar); 28 size_t audioRecorder_handleMoreData_lockRecord(CAudioRecorder* ar, 29 const android::AudioRecord::Buffer&); 30 //-------------------------------------------------------------------------------------------------- 31 namespace android { 32 33 class AudioRecordCallback : public android::AudioRecord::IAudioRecordCallback { 34 public: AudioRecordCallback(CAudioRecorder * audioRecorder)35 AudioRecordCallback(CAudioRecorder * audioRecorder) : mAr(audioRecorder) {} 36 AudioRecordCallback(const AudioRecordCallback&) = delete; 37 AudioRecordCallback& operator=(const AudioRecordCallback&) = delete; 38 39 private: onMoreData(const android::AudioRecord::Buffer & buffer)40 size_t onMoreData(const android::AudioRecord::Buffer& buffer) override { 41 if (!android::CallbackProtector::enterCbIfOk(mAr->mCallbackProtector)) { 42 // it is not safe to enter the callback (the track is about to go away) 43 return buffer.size(); // replicate existing behavior 44 } 45 size_t bytesRead = audioRecorder_handleMoreData_lockRecord(mAr, buffer); 46 mAr->mCallbackProtector->exitCb(); 47 return bytesRead; 48 } 49 50 onOverrun()51 void onOverrun() override { 52 if (!android::CallbackProtector::enterCbIfOk(mAr->mCallbackProtector)) { 53 // it is not safe to enter the callback (the track is about to go away) 54 return; 55 } 56 audioRecorder_handleOverrun_lockRecord(mAr); 57 mAr->mCallbackProtector->exitCb(); 58 } onMarker(uint32_t)59 void onMarker(uint32_t) override { 60 if (!android::CallbackProtector::enterCbIfOk(mAr->mCallbackProtector)) { 61 // it is not safe to enter the callback (the track is about to go away) 62 return; 63 } 64 65 audioRecorder_handleMarker_lockRecord(mAr); 66 mAr->mCallbackProtector->exitCb(); 67 } onNewPos(uint32_t)68 void onNewPos(uint32_t) override { 69 if (!android::CallbackProtector::enterCbIfOk(mAr->mCallbackProtector)) { 70 // it is not safe to enter the callback (the track is about to go away) 71 return; 72 } 73 74 audioRecorder_handleNewPos_lockRecord(mAr); 75 mAr->mCallbackProtector->exitCb(); 76 } 77 CAudioRecorder * const mAr; 78 }; 79 80 } // namespace android 81