1 /* 2 * Copyright (C) 2011 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 // sp<> capable proxy for AudioTrack 18 19 #include <media/AudioTrack.h> 20 21 namespace android { 22 23 class AudioTrackProxy : public RefBase { 24 25 public: 26 27 AudioTrackProxy(AudioTrack *raw) : mRaw(raw) { assert(raw != NULL); } 28 29 // don't define all methods, just the ones needed 30 31 void setVolume(float left, float right) 32 { mRaw->setVolume(left, right); } 33 void stop() 34 { mRaw->stop(); } 35 void start() 36 { mRaw->start(); } 37 status_t initCheck() 38 { return mRaw->initCheck(); } 39 status_t setSampleRate(int sampleRate) 40 { return mRaw->setSampleRate(sampleRate); } 41 void pause() 42 { mRaw->pause(); } 43 void getPosition(uint32_t *p) 44 { mRaw->getPosition(p); } 45 void mute(bool muted) 46 { mRaw->mute(muted); } 47 void flush() 48 { mRaw->flush(); } 49 void setMarkerPosition(uint32_t marker) 50 { mRaw->setMarkerPosition(marker); } 51 void setPositionUpdatePeriod(uint32_t updatePeriod) 52 { mRaw->setPositionUpdatePeriod(updatePeriod); } 53 status_t attachAuxEffect(int effectId) 54 { return mRaw->attachAuxEffect(effectId); } 55 status_t setAuxEffectSendLevel(float level) 56 { return mRaw->setAuxEffectSendLevel(level); } 57 58 protected: 59 60 virtual ~AudioTrackProxy() 61 { } 62 virtual void onLastStrongRef(const void* id) 63 { 64 assert(mRaw != NULL); 65 delete mRaw; 66 mRaw = NULL; 67 } 68 69 private: 70 android::AudioTrack *mRaw; 71 72 AudioTrackProxy(const AudioTrackProxy &); 73 AudioTrackProxy &operator=(const AudioTrackProxy &); 74 }; 75 76 } 77