AVClass Struct Reference

Describes the class of an AVClass context structure. More...

#include <log.h>

Data Fields
const char *	class_name
	The name of the class; usually it is the same name as the context structure type to which the AVClass is associated.
const char *(*	item_name )(void *ctx)
	A pointer to a function which returns the name of a context instance ctx associated with the class.
struct AVOption *	option
	a pointer to the first option specified in the class if any or NULL
int	version
	LIBAVUTIL_VERSION with which this structure was created.

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Detailed Description

Describes the class of an AVClass context structure.

That is an arbitrary struct of which the first field is a pointer to an AVClass struct (e.g. AVCodecContext, AVFormatContext etc.).

Definition at line 32 of file log.h.

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Field Documentation

const char* AVClass::class_name

The name of the class; usually it is the same name as the context structure type to which the AVClass is associated.

Definition at line 37 of file log.h.

const char*(* AVClass::item_name)(void *ctx)

A pointer to a function which returns the name of a context instance ctx associated with the class.

Referenced by av_log_default_callback(), and http_av_log().

struct AVOption* AVClass::option [read]

a pointer to the first option specified in the class if any or NULL

See also:

av_set_default_options()

Definition at line 50 of file log.h.

Referenced by av_find_opt().

int AVClass::version

LIBAVUTIL_VERSION with which this structure was created.

This is used to allow fields to be added without requiring major version bumps everywhere.

Definition at line 58 of file log.h.

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The documentation for this struct was generated from the following file:

• libavutil/log.h