RedCore/cocos2d/cocos/audio/android/AudioEngine-inl.h

/****************************************************************************
 Copyright (c) 2014-2017 Chukong Technologies Inc.

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#if CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID

#ifndef __AUDIO_ENGINE_INL_H_
#define __AUDIO_ENGINE_INL_H_

#include <SLES/OpenSLES.h>
#include <SLES/OpenSLES_Android.h>
#include <string>
#include <unordered_map>
#include "base/CCRef.h"
#include "base/ccUtils.h"

#define MAX_AUDIOINSTANCES 24

#define ERRORLOG(msg) log("fun:%s,line:%d,msg:%s",__func__,__LINE__,#msg)

NS_CC_BEGIN

class EventCustom;
class EventListener;

namespace experimental {

class IAudioPlayer;
class AudioPlayerProvider;

class AudioEngineImpl;

class AudioEngineImpl : public cocos2d::Ref
{
public:
    AudioEngineImpl();
    ~AudioEngineImpl();

    bool init();
    int play2d(const std::string &fileFullPath ,bool loop ,float volume);
    void setVolume(int audioID,float volume);
    void setLoop(int audioID, bool loop);
    void pause(int audioID);
    void resume(int audioID);
    void stop(int audioID);
    void stopAll();
    float getDuration(int audioID);
    float getCurrentTime(int audioID);
    bool setCurrentTime(int audioID, float time);
    void setFinishCallback(int audioID, const std::function<void (int, const std::string &)> &callback);

    void uncache(const std::string& filePath);
    void uncacheAll();
    void preload(const std::string& filePath, const std::function<void(bool)>& callback);

private:

    void onEnterBackground(EventCustom* event);
    void onEnterForeground(EventCustom* event);

    // engine interfaces
    SLObjectItf _engineObject;
    SLEngineItf _engineEngine;

    // output mix interfaces
    SLObjectItf _outputMixObject;

    //audioID,AudioInfo
    std::unordered_map<int, IAudioPlayer*>  _audioPlayers;
    std::unordered_map<int, std::function<void (int, const std::string &)>> _callbackMap;

    // UrlAudioPlayers which need to resumed while entering foreground
    std::vector<IAudioPlayer*> _urlAudioPlayersNeedResume;

    AudioPlayerProvider* _audioPlayerProvider;
    EventListener* _onPauseListener;
    EventListener* _onResumeListener;

    int _audioIDIndex;
    
    bool _lazyInitLoop;
};

#endif // __AUDIO_ENGINE_INL_H_
 }
NS_CC_END

#endif