haiku/headers/private/media/ReaderPlugin.h

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#ifndef _READER_PLUGIN_H
#define _READER_PLUGIN_H
#include <MediaTrack.h>
#include "MediaPlugin.h"
namespace BPrivate { namespace media {
class PluginManager;
enum {
B_MEDIA_SEEK_TO_TIME = 0x10000,
B_MEDIA_SEEK_TO_FRAME = 0x20000
};
class Reader {
public:
Reader();
virtual ~Reader();
virtual const char* Copyright() = 0;
virtual status_t Sniff(int32* streamCount) = 0;
virtual void GetFileFormatInfo(media_file_format* mff) = 0;
virtual status_t AllocateCookie(int32 streamNumber,
void** cookie) = 0;
virtual status_t FreeCookie(void* cookie) = 0;
virtual status_t GetStreamInfo(void* cookie, int64* frameCount,
bigtime_t *duration, media_format* format,
const void** infoBuffer,
size_t* infoSize) = 0;
virtual status_t Seek(void* cookie, uint32 flags, int64* frame,
bigtime_t* time);
virtual status_t FindKeyFrame(void* cookie, uint32 flags,
int64* frame, bigtime_t* time);
virtual status_t GetNextChunk(void* cookie,
const void** chunkBuffer, size_t* chunkSize,
media_header* mediaHeader) = 0;
BDataIO* Source() const;
virtual status_t Perform(perform_code code, void* data);
private:
virtual void _ReservedReader1();
virtual void _ReservedReader2();
virtual void _ReservedReader3();
virtual void _ReservedReader4();
virtual void _ReservedReader5();
public: // XXX for test programs only
void Setup(BDataIO* source);
BDataIO* fSource;
// needed for plug-in reference count management
friend class PluginManager;
MediaPlugin* fMediaPlugin;
uint32 fReserved[5];
};
class ReaderPlugin : public virtual MediaPlugin {
public:
virtual Reader* NewReader() = 0;
};
} } // namespace BPrivate::media
using namespace BPrivate::media;
#endif // _READER_PLUGIN_H