opt.c File Reference

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Detailed Description

AVOptions.

Author:

Michael Niedermayer <michaelni@gmx.at>

Definition in file opt.c.

Go to the source code of this file.

Functions
const AVOption *	av_find_opt (void *v, const char *name, const char *unit, int mask, int flags)
const AVOption *	av_next_option (void *obj, const AVOption *last)
static const AVOption *	av_set_number (void *obj, const char *name, double num, int den, int64_t intnum)
static const AVOption *	set_all_opt (void *v, const char *unit, double d)
const AVOption *	av_set_string (void *obj, const char *name, const char *val)
const AVOption *	av_set_double (void *obj, const char *name, double n)
const AVOption *	av_set_q (void *obj, const char *name, AVRational n)
const AVOption *	av_set_int (void *obj, const char *name, int64_t n)
const char *	av_get_string (void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len)
static int	av_get_number (void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum)
double	av_get_double (void *obj, const char *name, const AVOption **o_out)
AVRational	av_get_q (void *obj, const char *name, const AVOption **o_out)
int64_t	av_get_int (void *obj, const char *name, const AVOption **o_out)
static void	opt_list (void *obj, void *av_log_obj, const char *unit)
int	av_opt_show (void *obj, void *av_log_obj)
void	av_opt_set_defaults2 (void *s, int mask, int flags)
	Set the values of the AVCodecContext or AVFormatContext structure.
void	av_opt_set_defaults (void *s)
Variables
static double	const_values []
static const char *	const_names []

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Function Documentation

const AVOption* av_find_opt	(	void *	v,
		const char *	name,
		const char *	unit,
		int	mask,
		int	flags
	)

Definition at line 33 of file opt.c.

Referenced by av_get_number(), av_get_string(), av_set_number(), and av_set_string().

const AVOption* av_next_option	(	void *	obj,
		const AVOption *	last
	)

Definition at line 44 of file opt.c.

Referenced by av_opt_set_defaults2(), and opt_list().

static const AVOption* av_set_number	(	void *	obj,
		const char *	name,
		double	num,
		int	den,
		int64_t	intnum
	)			[static]

Definition at line 50 of file opt.c.

Referenced by av_set_double(), av_set_int(), av_set_q(), av_set_string(), and set_all_opt().

static const AVOption* set_all_opt	(	void *	v,
		const char *	unit,
		double	d
	)			[static]

Definition at line 78 of file opt.c.

Referenced by av_set_string().

const AVOption* av_set_string	(	void *	obj,
		const char *	name,
		const char *	val
	)

Definition at line 110 of file opt.c.

const AVOption* av_set_double	(	void *	obj,
		const char *	name,
		double	n
	)

Definition at line 166 of file opt.c.

Referenced by av_opt_set_defaults2().

const AVOption* av_set_q	(	void *	obj,
		const char *	name,
		AVRational	n
	)

Definition at line 170 of file opt.c.

Referenced by av_opt_set_defaults2().

const AVOption* av_set_int	(	void *	obj,
		const char *	name,
		int64_t	n
	)

Definition at line 174 of file opt.c.

Referenced by av_opt_set_defaults2().

const char* av_get_string	(	void *	obj,
		const char *	name,
		const AVOption **	o_out,
		char *	buf,
		int	buf_len
	)

Parameters:

	buf	a buffer which is used for returning non string values as strings, can be NULL
	buf_len	allocated length in bytes of buf

Definition at line 183 of file opt.c.

static int av_get_number	(	void *	obj,
		const char *	name,
		const AVOption **	o_out,
		double *	num,
		int *	den,
		int64_t *	intnum
	)			[static]

Definition at line 209 of file opt.c.

Referenced by av_get_double(), av_get_int(), and av_get_q().

double av_get_double	(	void *	obj,
		const char *	name,
		const AVOption **	o_out
	)

Definition at line 234 of file opt.c.

AVRational av_get_q	(	void *	obj,
		const char *	name,
		const AVOption **	o_out
	)

Definition at line 243 of file opt.c.

int64_t av_get_int	(	void *	obj,
		const char *	name,
		const AVOption **	o_out
	)

Definition at line 255 of file opt.c.

Referenced by av_set_string(), and set_all_opt().

static void opt_list	(	void *	obj,
		void *	av_log_obj,
		const char *	unit
	)			[static]

Definition at line 264 of file opt.c.

Referenced by av_opt_show().

int av_opt_show	(	void *	obj,
		void *	av_log_obj
	)

Definition at line 330 of file opt.c.

void av_opt_set_defaults2	(	void *	s,
		int	mask,
		int	flags
	)

Set the values of the AVCodecContext or AVFormatContext structure.

They are set to the defaults specified in the according AVOption options array default_val field.

Parameters:

s

AVCodecContext or AVFormatContext for which the defaults will be set

Definition at line 347 of file opt.c.

Referenced by av_opt_set_defaults(), and avcodec_get_context_defaults2().

void av_opt_set_defaults

(

void *

s

)

Definition at line 385 of file opt.c.

Referenced by avformat_get_context_defaults().

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Variable Documentation

double const_values[] [static]

Initial value:

{
    M_PI,
    M_E,
    FF_QP2LAMBDA,
    0
}

Definition at line 96 of file opt.c.

const char* const_names[] [static]

Initial value:

{
    "PI",
    "E",
    "QP2LAMBDA",
    0
}

Definition at line 103 of file opt.c.