dec_jpeg2000.c File Reference

Decodes JPEG2000 code stream. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "grib2_int.h"
#include "jasper/jasper.h"

Go to the source code of this file.

Functions
int	dec_jpeg2000 (char *injpc, g2int bufsize, g2int *outfld)
	This Function decodes a JPEG2000 code stream specified in the JPEG2000 Part-1 standard (i.e., ISO/IEC 15444-1) using JasPer Software. More...

Detailed Description

Decodes JPEG2000 code stream.

Author

Stephen Gilbert

Date

2002-12-02

Definition in file dec_jpeg2000.c.

Function Documentation

dec_jpeg2000()

int dec_jpeg2000	(	char *	injpc,
		g2int	bufsize,
		g2int *	outfld
	)

This Function decodes a JPEG2000 code stream specified in the JPEG2000 Part-1 standard (i.e., ISO/IEC 15444-1) using JasPer Software.

Program History Log

Date	Programmer	Comments
2002-12-02	Gilbert	Initial
2022-04-15	Hartnett	Converted to use jas_ instead of jpc_ functions.

Parameters

injpc	Input JPEG2000 code stream.
bufsize	Length (in bytes) of the input JPEG2000 code stream.
outfld	Output matrix of grayscale image values.

Returns

• 0 Successful decode
• G2_JASPER_DECODE Error decode jpeg2000 code stream.
• G2_JASPER_DECODE_COLOR decoded image had multiple color components. Only grayscale is expected.
• G2_JASPER_INIT Error inializing Jasper library.

Author

Stephen Gilbert

Date

2002-12-02

Author

Ed Hartnett

Definition at line 38 of file dec_jpeg2000.c.

References G2_JASPER_DECODE, G2_JASPER_DECODE_COLOR, G2_JASPER_INIT, and G2C_JASPER_JPEG_FORMAT_NAME.

Referenced by jpcunpack_int().