haiku/headers/os/media/FileInterface.h

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/*******************************************************************************
/
/ File: FileInterface.h
/
/ Description: A BFileInterface is something which can read and/or write files for the
/ use of other Media Kit participants.
/
/ Copyright 1997-98, Be Incorporated, All Rights Reserved
/
*******************************************************************************/
#if !defined(_FILE_INTERFACE_H)
#define _FILE_INTERFACE_H
#include <MediaDefs.h>
#include <MediaNode.h>
class BFileInterface :
public virtual BMediaNode
{
protected:
virtual ~BFileInterface(); /* force vtable */
public:
/* look, no hands! */
protected:
BFileInterface();
virtual status_t HandleMessage(
int32 message,
const void * data,
size_t size);
virtual status_t GetNextFileFormat(
int32 * cookie,
media_file_format * out_format) = 0;
virtual void DisposeFileFormatCookie(
int32 cookie) = 0;
virtual status_t GetDuration(
bigtime_t * out_time) = 0;
virtual status_t SniffRef(
const entry_ref & file,
char * out_mime_type, /* 256 bytes */
float * out_quality) = 0;
virtual status_t SetRef(
const entry_ref & file,
bool create,
bigtime_t * out_time) = 0;
virtual status_t GetRef(
entry_ref * out_ref,
char * out_mime_type) = 0;
private:
friend class BMediaNode;
BFileInterface( /* private unimplemented */
const BFileInterface & clone);
BFileInterface & operator=(
const BFileInterface & clone);
/* Mmmh, stuffing! */
virtual status_t _Reserved_FileInterface_0(void *);
virtual status_t _Reserved_FileInterface_1(void *);
virtual status_t _Reserved_FileInterface_2(void *);
virtual status_t _Reserved_FileInterface_3(void *);
virtual status_t _Reserved_FileInterface_4(void *);
virtual status_t _Reserved_FileInterface_5(void *);
virtual status_t _Reserved_FileInterface_6(void *);
virtual status_t _Reserved_FileInterface_7(void *);
virtual status_t _Reserved_FileInterface_8(void *);
virtual status_t _Reserved_FileInterface_9(void *);
virtual status_t _Reserved_FileInterface_10(void *);
virtual status_t _Reserved_FileInterface_11(void *);
virtual status_t _Reserved_FileInterface_12(void *);
virtual status_t _Reserved_FileInterface_13(void *);
virtual status_t _Reserved_FileInterface_14(void *);
virtual status_t _Reserved_FileInterface_15(void *);
uint32 _reserved_file_interface_[16];
};
#endif /* _FILE_INTERFACE_H */