haiku/src/servers/media/AddOnManager.h

/*
 * Copyright 2004-2009, Haiku. All rights reserved.
 * Distributed under the terms of the MIT license.
 *
 * Authors:
 *		Marcus Overhagen
 *		Axel Dörfler
 *		Stephan Aßmus <superstippi@gmx.de>
 */
#ifndef _ADD_ON_MANAGER_H
#define _ADD_ON_MANAGER_H


/*!	Manager for codec add-ons (reader, writer, encoder, decoder)
	BMediaAddOn are handled in the NodeManager
*/


#include "DataExchange.h"
#include "TList.h"

#include "AddOnMonitor.h"
#include "AddOnMonitorHandler.h"
#include "DecoderPlugin.h"
#include "EncoderPlugin.h"
#include "ReaderPlugin.h"
#include "WriterPlugin.h"


class AddOnManager {
public:
								AddOnManager();
								~AddOnManager();

			void				LoadState();
			void				SaveState();

			status_t			GetDecoderForFormat(xfer_entry_ref* _ref,
									const media_format& format);

			status_t			GetReaders(xfer_entry_ref* _ref,
									int32* _count, int32 maxCount);

			status_t			GetEncoderForFormat(xfer_entry_ref* _ref,
									const media_format& format);

			status_t			GetWriter(xfer_entry_ref* _ref,
									const media_file_format& format);

private:
			status_t			_RegisterAddOn(BEntry& entry);
			void				_RegisterAddOns();

			void				_RegisterReader(ReaderPlugin* reader,
									const entry_ref& ref);
			void				_RegisterDecoder(DecoderPlugin* decoder,
									const entry_ref& ref);

			void				_RegisterWriter(WriterPlugin* writer,
									const entry_ref& ref);
			void				_RegisterEncoder(EncoderPlugin* encoder,
									const entry_ref& ref);

private:
			struct reader_info {
				entry_ref ref;
			};
			struct writer_info {
				entry_ref ref;
				List<media_file_format> fileFormats;
			};
			struct decoder_info {
				entry_ref ref;
				List<media_format> formats;
			};
			struct encoder_info {
				entry_ref ref;
				List<media_format> formats;
			};

			BLocker				fLock;
			List<reader_info>	fReaderList;
			List<writer_info>	fWriterList;
			List<decoder_info>	fDecoderList;
			List<encoder_info>	fEncoderList;

			uint32				fNextWriterFormatFamilyID;

			AddOnMonitorHandler* fHandler;
			AddOnMonitor*		fAddOnMonitor;
};

#endif // _ADD_ON_MANAGER_H