CodecRegistry.h

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//
// C++ Interface: Audio::CodecRegistry
//
#ifndef __AUDIO_CODECREGISTRY_H__INCLUDED__
#define __AUDIO_CODECREGISTRY_H__INCLUDED__

#include <string>
#include <map>
#include <set>
#include "Exceptions.h"
#include "Singleton.h"

#include "vsfilesystem.h"

namespace Audio {

    // The registry needs not know what it's managing... right?
    // At least not its interface.
    class Codec;
    class Stream;

    class CodecRegistry : public Singleton<CodecRegistry>
    {
    private:
        // The many required indexes
        typedef std::set<Codec*> CodecSet;
        typedef std::map<Codec*,int> CodecPriority;
        typedef std::map<std::string, CodecSet> ExtensionCodecs;
        typedef std::map<std::string, Codec*> NameCodec;
        
        CodecPriority codecPriority;
        ExtensionCodecs extensionCodecs;
        CodecSet universalCodecs;
        NameCodec nameCodec;
    
    public:
        CodecRegistry() throw();
        
        ~CodecRegistry();
        
        void add(Codec* codec, int priority = 0) throw();
        
        void remove(Codec* codec) throw();
        
        Codec* findByName(const std::string& name) const throw(CodecNotFoundException);
        
        Codec* findByFile(const std::string& path, VSFileSystem::VSFileType type = VSFileSystem::UnknownFile) const throw(CodecNotFoundException);
        
        Stream* open(const std::string& path, VSFileSystem::VSFileType type = VSFileSystem::UnknownFile) const throw(Exception);
        
    };
    
    class CodecRegistration
    {
        Codec *codec;
    public:
        CodecRegistration(Codec* codec, int priority = 0) throw();
        ~CodecRegistration();
    };

};

#endif//__AUDIO_CODECREGISTRY_H__INCLUDED__