Classes
struct	zbar_scanner_s

Macros
#define	EWMA_WEIGHT

#define	ROUND

#define	THRESH_INIT

#define	ZBAR_FIXED

#define	ZBAR_SCANNER_EWMA_WEIGHT

#define	ZBAR_SCANNER_THRESH_FADE

#define	ZBAR_SCANNER_THRESH_INIT_WEIGHT

#define	ZBAR_SCANNER_THRESH_MIN

Functions
static unsigned	calc_thresh (zbar_scanner_t *scn)

static zbar_symbol_type_t	process_edge (zbar_scanner_t *scn, int y1)

zbar_symbol_type_t	zbar_scan_y (zbar_scanner_t *scn, int y)

zbar_scanner_t *	zbar_scanner_create (zbar_decoder_t *dcode)

void	zbar_scanner_destroy (zbar_scanner_t *scn)

zbar_symbol_type_t	zbar_scanner_flush (zbar_scanner_t *scn)

zbar_color_t	zbar_scanner_get_color (const zbar_scanner_t *scn)

unsigned	zbar_scanner_get_edge (const zbar_scanner_t *scn, unsigned offset, int prec)

void	zbar_scanner_get_state (const zbar_scanner_t scn, unsigned x, unsigned cur_edge, unsigned last_edge, int y0, int y1, int y2, int y1_thresh)

unsigned	zbar_scanner_get_width (const zbar_scanner_t *scn)

zbar_symbol_type_t	zbar_scanner_new_scan (zbar_scanner_t *scn)

zbar_symbol_type_t	zbar_scanner_reset (zbar_scanner_t *scn)

Macro Definition Documentation

#define EWMA_WEIGHT

Referenced by zbar_scan_y().

#define ROUND

Referenced by process_edge(), zbar_scan_y(), zbar_scanner_flush(), and zbar_scanner_get_edge().

#define THRESH_INIT

Referenced by zbar_scan_y().

#define ZBAR_FIXED

Referenced by calc_thresh(), process_edge(), zbar_scan_y(), zbar_scanner_flush(), and zbar_scanner_get_edge().

#define ZBAR_SCANNER_EWMA_WEIGHT

#define ZBAR_SCANNER_THRESH_FADE

Referenced by calc_thresh().

#define ZBAR_SCANNER_THRESH_INIT_WEIGHT

#define ZBAR_SCANNER_THRESH_MIN

Referenced by zbar_scanner_create().

Function Documentation

static unsigned calc_thresh ( zbar_scanner_t * scn )

inlinestatic

References dprintf, zbar_scanner_s::y1_min_thresh, ZBAR_FIXED, and ZBAR_SCANNER_THRESH_FADE.

Referenced by zbar_scan_y(), and zbar_scanner_get_state().

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static zbar_symbol_type_t process_edge	(	zbar_scanner_t *	scn,
		int	y1
	)

inlinestatic

References dprintf, ROUND, svg_path_moveto, zbar_decode_width(), ZBAR_FIXED, and zbar::ZBAR_PARTIAL.

Referenced by zbar_scan_y(), and zbar_scanner_flush().

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zbar_symbol_type_t zbar_scan_y	(	zbar_scanner_t *	scn,
		int	y
	)

References calc_thresh(), dprintf, EWMA_WEIGHT, process_edge(), ROUND, THRESH_INIT, zbar_scanner_s::x, y, ZBAR_FIXED, and zbar::ZBAR_NONE.

Referenced by scanner_scan_y(), and zbar_scan_image().

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zbar_scanner_t* zbar_scanner_create ( zbar_decoder_t * dcode )

References zbar_scanner_reset(), and ZBAR_SCANNER_THRESH_MIN.

Referenced by scanner_new(), and zbar_image_scanner_create().

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void zbar_scanner_destroy ( zbar_scanner_t * scn )

Referenced by scanner_dealloc(), and zbar_image_scanner_destroy().

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zbar_symbol_type_t zbar_scanner_flush ( zbar_scanner_t * scn )

inline

References dprintf, process_edge(), ROUND, zbar_scanner_s::x, zbar_decode_width(), ZBAR_FIXED, zbar::ZBAR_NONE, and zbar::ZBAR_PARTIAL.

Referenced by quiet_border(), and zbar_scanner_new_scan().

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zbar_color_t zbar_scanner_get_color ( const zbar_scanner_t * scn )

References zbar::ZBAR_BAR, and zbar::ZBAR_SPACE.

Referenced by scanner_get_color().

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unsigned zbar_scanner_get_edge	(	const zbar_scanner_t *	scn,
		unsigned	offset,
		int	prec
	)

References ROUND, and ZBAR_FIXED.

Referenced by _zbar_image_scanner_add_sym(), and symbol_handler().

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void zbar_scanner_get_state	(	const zbar_scanner_t *	scn,
		unsigned *	x,
		unsigned *	cur_edge,
		unsigned *	last_edge,
		int *	y0,
		int *	y1,
		int *	y2,
		int *	y1_thresh
	)