Option getting functions
[AVOptions]

Those functions get a value of the option with the given name from an object. More...

Functions
int	av_opt_get (void *obj, const char *name, int search_flags, uint8_t **out_val)
int	av_opt_get_int (void *obj, const char *name, int search_flags, int64_t *out_val)
int	av_opt_get_double (void *obj, const char *name, int search_flags, double *out_val)
int	av_opt_get_q (void *obj, const char *name, int search_flags, AVRational *out_val)

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Detailed Description

Those functions get a value of the option with the given name from an object.

Parameters:

[in]	obj	a struct whose first element is a pointer to an AVClass.
[in]	name	name of the option to get.
[in]	search_flags	flags passed to av_opt_find2. I.e. if AV_OPT_SEARCH_CHILDREN is passed here, then the option may be found in a child of obj.
[out]	out_val	value of the option will be written here

Returns:

0 on success, a negative error code otherwise

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Function Documentation

int av_opt_get	(	void *	obj,
		const char *	name,
		int	search_flags,
		uint8_t **	out_val
	)

Note:

the returned string will av_malloc()ed and must be av_free()ed by the caller

Definition at line 360 of file opt.c.

Referenced by ff_rtp_chain_mux_open(), and show_stream().

int av_opt_get_double	(	void *	obj,
		const char *	name,
		int	search_flags,
		double *	out_val
	)

Definition at line 476 of file opt.c.

int av_opt_get_int	(	void *	obj,
		const char *	name,
		int	search_flags,
		int64_t *	out_val
	)

Definition at line 464 of file opt.c.

Referenced by av_opt_flag_is_set(), ff_rtp_get_payload_type(), and new_output_stream().

int av_opt_get_q	(	void *	obj,
		const char *	name,
		int	search_flags,
		AVRational *	out_val
	)

Definition at line 488 of file opt.c.