1 /* 2 * Copyright (C) 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 __ANDROID_TRACK_PLAYER_BASE_H__ 18 #define __ANDROID_TRACK_PLAYER_BASE_H__ 19 20 #include <media/AudioTrack.h> 21 #include <media/PlayerBase.h> 22 23 namespace android { 24 25 class TrackPlayerBase : public PlayerBase 26 { 27 public: 28 explicit TrackPlayerBase(); 29 virtual ~TrackPlayerBase(); 30 31 void init(AudioTrack* pat, player_type_t playerType, audio_usage_t usage); 32 virtual void destroy(); 33 34 //IPlayer implementation 35 virtual binder::Status applyVolumeShaper( 36 const media::VolumeShaper::Configuration& configuration, 37 const media::VolumeShaper::Operation& operation); 38 39 //FIXME move to protected field, so far made public to minimize changes to AudioTrack logic 40 sp<AudioTrack> mAudioTrack; 41 42 void setPlayerVolume(float vl, float vr); 43 44 protected: 45 46 //PlayerBase virtuals 47 virtual status_t playerStart(); 48 virtual status_t playerPause(); 49 virtual status_t playerStop(); 50 virtual status_t playerSetVolume(); 51 52 private: 53 void doDestroy(); 54 status_t doSetVolume(); 55 56 // volume coming from the player volume API 57 float mPlayerVolumeL, mPlayerVolumeR; 58 }; 59 60 } // namespace android 61 62 #endif /* __ANDROID_TRACK_PLAYER_BASE_H__ */ 63
