file_open.c File Reference

#include "config.h"
#include "internal.h"
#include "mem.h"
#include <stdarg.h>
#include <fcntl.h>
#include <sys/stat.h>

Go to the source code of this file.

Data Structures
struct	FileLogContext

Macros
#define	O_BINARY   0
#define	O_EXCL   0

Functions
int	avpriv_open (const char *filename, int flags,...)
	A wrapper for open() setting O_CLOEXEC. More...
int	avpriv_tempfile (const char *prefix, char **filename, int log_offset, void *log_ctx)
	Wrapper to work around the lack of mkstemp() on mingw. More...
FILE *	av_fopen_utf8 (const char *path, const char *mode)
	Open a file using a UTF-8 filename. More...

Variables
static const AVClass	file_log_ctx_class

Macro Definition Documentation

O_BINARY

#define O_BINARY   0

Examples:

ffhash.c.

Referenced by av_fopen_utf8(), avpriv_tempfile(), check(), and file_move().

O_EXCL

#define O_EXCL   0

Referenced by avpriv_tempfile().

Function Documentation

avpriv_open()

int avpriv_open	(	const char *	filename,
		int	flags,
			...
	)

A wrapper for open() setting O_CLOEXEC.

Definition at line 66 of file file_open.c.

Referenced by av_file_map(), av_fopen_utf8(), bktr_init(), fbdev_read_header(), fbdev_write_header(), ff_fbdev_get_device_list(), ff_oss_audio_open(), ff_rint64_clip(), file_move(), and read_random().

avpriv_tempfile()

int avpriv_tempfile	(	const char *	prefix,
		char **	filename,
		int	log_offset,
		void *	log_ctx
	)

Wrapper to work around the lack of mkstemp() on mingw.

Also, tries to create file in /tmp first, if possible. *prefix can be a character constant; *filename will be allocated internally.

Returns

file descriptor of opened file (or negative value corresponding to an AVERROR code on error) and opened file name in **filename.

Note

On very old libcs it is necessary to set a secure umask before calling this, av_tempfile() can't call umask itself as it is used in libraries and could interfere with the calling application.

Definition at line 110 of file file_open.c.

Referenced by av_tempfile(), cache_open(), ff_rint64_clip(), ff_xvid_rate_control_init(), and xvid_encode_init().

Variable Documentation

file_log_ctx_class

const AVClass file_log_ctx_class

static

Initial value:

= {
    .class_name                = "TEMPFILE",
    .item_name                 = av_default_item_name,
    .option                    = NULL,
    .version                   = LIBAVUTIL_VERSION_INT,
    .log_level_offset_offset   = 0x42,
    .parent_log_context_offset = 0x42,
}

Definition at line 101 of file file_open.c.

Referenced by avpriv_tempfile().