/home/jvcleave/Desktop/RASPBERRY_PI/userland/interface/mmal/util/mmal_param_convert.h File Reference

#include "interface/mmal/mmal.h"

Go to the source code of this file.

Functions
MMAL_STATUS_T	mmal_parse_video_size (uint32_t *w, uint32_t *h, const char *str)
MMAL_STATUS_T	mmal_parse_rational (MMAL_RATIONAL_T *dest, const char *str)
MMAL_STATUS_T	mmal_parse_int (int *dest, const char *str)
MMAL_STATUS_T	mmal_parse_uint (unsigned int *dest, const char *str)
MMAL_STATUS_T	mmal_parse_geometry (MMAL_RECT_T *dest, const char *str)
MMAL_STATUS_T	mmal_parse_video_codec (uint32_t *dest, const char *str)

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Detailed Description

Support for setting/getting parameters as string values.

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Function Documentation

MMAL_STATUS_T mmal_parse_geometry	(	MMAL_RECT_T *	dest,
		const char *	str
	)

Parse a geometry for a rectangle

e.g. 100*100+50+75 or 200*150

Parameters:

dest	filled in with result
str	string to convert

Returns:

MMAL_SUCCESS or error code

MMAL_STATUS_T mmal_parse_int	(	int *	dest,
		const char *	str
	)

Parse an integer, e.g. -10, 0x1A, etc.

Parameters:

dest	filled in with result
str	string to convert

Returns:

MMAL_SUCCESS or error code

MMAL_STATUS_T mmal_parse_rational	(	MMAL_RATIONAL_T *	dest,
		const char *	str
	)

Parse a rational number. e.g. "30000/1001", "30", etc.

Parameters:

dest	filled in with result
str	string to convert

Returns:

MMAL_SUCCESS or error code

MMAL_STATUS_T mmal_parse_uint	(	unsigned int *	dest,
		const char *	str
	)

Parse an unsigned integer, e.g. 10, 0x1A, etc.

Parameters:

dest	filled in with result
str	string to convert

Returns:

MMAL_SUCCESS or error code

MMAL_STATUS_T mmal_parse_video_codec	(	uint32_t *	dest,
		const char *	str
	)

Parse a video codec name (something that can be encoded/decoded)

Parameters:

str	string to convert
dest	filled in with result

Returns:

MMAL_SUCCESS or error code

MMAL_STATUS_T mmal_parse_video_size	(	uint32_t *	w,
		uint32_t *	h,
		const char *	str
	)

Parse a video size. e.g. "1080p" gives 1920x1080.

Parameters:

w	width result
h	height result
str	string to convert

Returns:

MMAL_SUCCESS or error code