TheoraVideoManager.h

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/************************************************************************************
This source file is part of the Theora Video Playback Library
For latest info, see http://libtheoraplayer.sourceforge.net/
*************************************************************************************
Copyright (c) 2008-2013 Kresimir Spes (kspes@cateia.com)
This program is free software; you can redistribute it and/or modify it under
the terms of the BSD license: http://www.opensource.org/licenses/bsd-license.php
*************************************************************************************/

#ifndef _TheoraVideoManager_h
#define _TheoraVideoManager_h

#include <vector>
#include <list>
#include <string>
#include "TheoraExport.h"
#include "TheoraVideoClip.h"
#ifdef _WIN32
#pragma warning( disable: 4251 ) // MSVC++
#endif
// forward class declarations
class TheoraWorkerThread;
class TheoraMutex;
class TheoraDataSource;
class TheoraAudioInterfaceFactory;
class TheoraPlayerExport TheoraVideoManager
{
protected:
        friend class TheoraWorkerThread;
        typedef std::vector<TheoraVideoClip*> ClipList;
        typedef std::vector<TheoraWorkerThread*> ThreadList;

        ThreadList mWorkerThreads;
        ClipList mClips;
        
        std::list<TheoraVideoClip*> mWorkLog;

        int mDefaultNumPrecachedFrames;

        TheoraMutex* mWorkMutex;
        TheoraAudioInterfaceFactory* mAudioFactory;

        void createWorkerThreads(int n);
        void destroyWorkerThreads();
        
        float calcClipWorkTime(TheoraVideoClip* clip);

        TheoraVideoClip* requestWork(TheoraWorkerThread* caller);
public:
        TheoraVideoManager(int num_worker_threads=1);
        virtual ~TheoraVideoManager();

        static TheoraVideoManager& getSingleton();
        static TheoraVideoManager* getSingletonPtr();

        TheoraVideoClip* getVideoClipByName(std::string name);

        TheoraVideoClip* createVideoClip(std::string filename,TheoraOutputMode output_mode=TH_RGB,int numPrecachedOverride=0,bool usePower2Stride=0);
        TheoraVideoClip* createVideoClip(TheoraDataSource* data_source,TheoraOutputMode output_mode=TH_RGB,int numPrecachedOverride=0,bool usePower2Stride=0);

        void update(float time_increase);

        void destroyVideoClip(TheoraVideoClip* clip);

        void setAudioInterfaceFactory(TheoraAudioInterfaceFactory* factory);
        TheoraAudioInterfaceFactory* getAudioInterfaceFactory();

        int getNumWorkerThreads();
        void setNumWorkerThreads(int n);

        void setDefaultNumPrecachedFrames(int n) { mDefaultNumPrecachedFrames=n; }
        int getDefaultNumPrecachedFrames() { return mDefaultNumPrecachedFrames; }

        void logMessage(std::string msg);

        static void setLogFunction(void (*fn)(std::string));

        std::string getVersionString();
        void getVersion(int* a,int* b,int* c);

        std::vector<std::string> getSupportedDecoders();
};
#endif