haiku/headers/private/media/PluginManager.h
Stephan Aßmus f3d79634e6 Beginnings of Encoder[Plugin] and Writer[Plugin] base classes and add-on
management.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31922 a95241bf-73f2-0310-859d-f6bbb57e9c96
2009-07-29 16:25:30 +00:00

90 lines
2.1 KiB
C++

/*
* Copyright 2004-2007, Marcus Overhagen. All rights reserved.
* Distributed under the terms of the OpenBeOS License.
*/
#ifndef _PLUGIN_MANAGER_H
#define _PLUGIN_MANAGER_H
#include <string.h>
#include "DecoderPlugin.h"
#include "EncoderPlugin.h"
#include "ReaderPlugin.h"
#include "WriterPlugin.h"
#include <TList.h>
#include <Locker.h>
namespace BPrivate { namespace media {
class PluginManager {
public:
PluginManager();
~PluginManager();
MediaPlugin* GetPlugin(const entry_ref& ref);
void PutPlugin(MediaPlugin* plugin);
// Readers and Decoders
status_t CreateReader(Reader** reader,
int32* streamCount, media_file_format* mff,
BDataIO* source);
void DestroyReader(Reader* reader);
status_t CreateDecoder(Decoder** decoder,
const media_format& format);
status_t CreateDecoder(Decoder** decoder,
const media_codec_info& mci);
status_t GetDecoderInfo(Decoder* decoder,
media_codec_info* _info) const;
void DestroyDecoder(Decoder* decoder);
// Writers and Encoders
status_t CreateWriter(Writer** writer,
const media_file_format& mff,
BDataIO* target);
void DestroyWriter(Writer* writer);
status_t CreateEncoder(Encoder** encoder,
const media_format& format);
status_t CreateEncoder(Encoder** encoder,
const media_codec_info& mci);
status_t GetEncoderInfo(Encoder* encoder,
media_codec_info* _info) const;
void DestroyEncoder(Encoder* encoder);
private:
status_t _LoadPlugin(const entry_ref& ref,
MediaPlugin** plugin, image_id* image);
struct plugin_info {
char name[260];
int usecount;
MediaPlugin* plugin;
image_id image;
plugin_info& operator=(const plugin_info& other)
{
strcpy(name, other.name);
usecount = other.usecount;
plugin = other.plugin;
image = other.image;
return *this;
}
};
List<plugin_info> fPluginList;
BLocker fLocker;
};
} } // namespace BPrivate::media
using namespace BPrivate::media;
extern PluginManager _plugin_manager;
#endif // _PLUGIN_MANAGER_H