1 /* 2 * Copyright 2017 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 AUDIO_OUTPUT_STREAM_OPENSL_ES_H_ 18 #define AUDIO_OUTPUT_STREAM_OPENSL_ES_H_ 19 20 21 #include <SLES/OpenSLES.h> 22 #include <SLES/OpenSLES_Android.h> 23 24 #include "oboe/Oboe.h" 25 #include "AudioStreamOpenSLES.h" 26 27 namespace oboe { 28 29 /** 30 * INTERNAL USE ONLY 31 */ 32 class AudioOutputStreamOpenSLES : public AudioStreamOpenSLES { 33 public: 34 AudioOutputStreamOpenSLES(); 35 explicit AudioOutputStreamOpenSLES(const AudioStreamBuilder &builder); 36 37 virtual ~AudioOutputStreamOpenSLES() = default; 38 39 Result open() override; 40 Result close() override; 41 42 Result requestStart() override; 43 Result requestPause() override; 44 Result requestFlush() override; 45 Result requestStop() override; 46 47 protected: 48 Result requestPause_l(); 49 50 void setFramesRead(int64_t framesRead); 51 52 Result updateServiceFrameCounter() override; 53 54 void updateFramesRead() override; 55 56 private: 57 58 SLuint32 channelCountToChannelMask(int chanCount) const; 59 60 Result onAfterDestroy() override; 61 62 Result requestFlush_l(); 63 64 Result requestStop_l(); 65 66 /** 67 * Set OpenSL ES PLAYSTATE. 68 * 69 * @param newState SL_PLAYSTATE_PAUSED, SL_PLAYSTATE_PLAYING, SL_PLAYSTATE_STOPPED 70 * @return 71 */ 72 Result setPlayState_l(SLuint32 newState); 73 74 SLPlayItf mPlayInterface = nullptr; 75 76 }; 77 78 } // namespace oboe 79 80 #endif //AUDIO_OUTPUT_STREAM_OPENSL_ES_H_ 81