decoder.h File Reference

Decoder header. More...

Go to the source code of this file.

Macros
#define	DECODE_METADATA_FAILED   -1
#define	FATAL_ERROR   -2
#define	MASTER_METADATA_X   6
#define	MASTER_METADATA_Y   1
#define	MASTER_METADATA_PART1_LENGTH   6
#define	MASTER_METADATA_PART2_LENGTH   12
#define	MASTER_METADATA_PART3_MAX_LENGTH   32

Enumerations
enum	jab_encode_mode {   None = -1, Upper = 0, Lower, Numeric,   Punct, Mixed, Alphanumeric, Byte,   ECI, FNC1 }
	Encoding mode.

Functions
jab_int32	decodeMaster (jab_bitmap *matrix, jab_decoded_symbol *symbol)
	Decode master symbol. More...
jab_int32	decodeSlave (jab_bitmap *matrix, jab_decoded_symbol *symbol)
	Decode slave symbol. More...
jab_data *	decodeData (jab_data *bits)
	Interpret decoded bits. More...
void	deinterleaveData (jab_data *data, jab_float *p)
	In-place deinterleaving. More...
void	getNextMetadataModuleInMaster (jab_int32 matrix_height, jab_int32 matrix_width, jab_int32 next_module_count, jab_int32 *x, jab_int32 *y)
	Get the coordinate of the next metadata module in master symbol. More...
void	demaskSymbol (jab_data *data, jab_byte *data_map, jab_vector2d symbol_size, jab_int32 mask_type, jab_int32 color_number)
	Demask modules. More...
jab_int32	readColorPaletteInMaster (jab_bitmap *matrix, jab_decoded_symbol *symbol, jab_byte *data_map, jab_int32 *module_count, jab_int32 *x, jab_int32 *y)
	Read the color palettes in master symbol. More...
jab_int32	readColorPaletteInSlave (jab_bitmap *matrix, jab_decoded_symbol *symbol, jab_byte *data_map)
	Read the color palettes in master symbol. More...

Detailed Description

Decoder header.

libjabcode - JABCode Encoding/Decoding Library

Copyright 2016 by Fraunhofer SIT. All rights reserved. See LICENSE file for full terms of use and distribution.

Contact: Huajian Liu liu@s.nosp@m.it.f.nosp@m.raunh.nosp@m.ofer.nosp@m..de Waldemar Berchtold walde.nosp@m.mar..nosp@m.berch.nosp@m.told.nosp@m.@sit..nosp@m.frau.nosp@m.nhofe.nosp@m.r.de

Function Documentation

jab_data* decodeData

(

jab_data *

bits

)

Interpret decoded bits.

Parameters

bits	the input bits

Returns

the data message

jab_int32 decodeMaster	(	jab_bitmap *	matrix,
		jab_decoded_symbol *	symbol
	)

Decode master symbol.

Parameters

matrix	the symbol matrix
symbol	the master symbol

Returns

JAB_SUCCESS | JAB_FAILURE | FATAL_ERROR

jab_int32 decodeSlave	(	jab_bitmap *	matrix,
		jab_decoded_symbol *	symbol
	)

Decode slave symbol.

Parameters

matrix	the symbol matrix
symbol	the slave symbol

Returns

JAB_SUCCESS | JAB_FAILURE | FATAL_ERROR

void deinterleaveData	(	jab_data *	data,
		jab_float *	p
	)

In-place deinterleaving.

Parameters

data	the first input data to be deinterleaved
p	the second input data to be deinterleaved

void demaskSymbol	(	jab_data *	data,
		jab_byte *	data_map,
		jab_vector2d	symbol_size,
		jab_int32	mask_type,
		jab_int32	color_number
	)

Demask modules.

Parameters

data	the decoded data module values
data_map	the data module positions
symbol_size	the symbol size in module
mask_type	the mask pattern reference
color_number	the number of module colors

void getNextMetadataModuleInMaster	(	jab_int32	matrix_height,
		jab_int32	matrix_width,
		jab_int32	next_module_count,
		jab_int32 *	x,
		jab_int32 *	y
	)

Get the coordinate of the next metadata module in master symbol.

Parameters

matrix_height	the height of the matrix
matrix_width	the width of the matrix
next_module_count	the index number of the next module
x	the x coordinate of the current and the next module
y	the y coordinate of the current and the next module

jab_int32 readColorPaletteInMaster	(	jab_bitmap *	matrix,
		jab_decoded_symbol *	symbol,
		jab_byte *	data_map,
		jab_int32 *	module_count,
		jab_int32 *	x,
		jab_int32 *	y
	)

Read the color palettes in master symbol.

Parameters

matrix	the symbol matrix
symbol	the master symbol
data_map	the data module positions
module_count	the start module index
x	the x coordinate of the start module
y	the y coordinate of the start module

Returns

JAB_SUCCESS | FATAL_ERROR

jab_int32 readColorPaletteInSlave	(	jab_bitmap *	matrix,
		jab_decoded_symbol *	symbol,
		jab_byte *	data_map
	)

Read the color palettes in master symbol.

Parameters

matrix	the symbol matrix
symbol	the slave symbol
data_map	the data module positions

Returns

JAB_SUCCESS | FATAL_ERROR