Man page - jpcunpack_int(3)
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apt-get install libg2c-dev
Manual
jpcunpack.c
NAMESYNOPSIS
Functions
Detailed Description
Function Documentation
int g2c_jpcunpackd (unsigned char * cpack, size_t len, int * idrstmpl,size_t ndpts, double * fld)
int g2c_jpcunpackf (unsigned char * cpack, size_t len, int * idrstmpl,size_t ndpts, float * fld)
g2int jpcunpack (unsigned char * cpack, g2int len, g2int * idrstmpl, g2intndpts, float * fld)
static int jpcunpack_int (unsigned char * cpack, g2int len, g2int *idrstmpl, g2int ndpts, void * fld, int fld_is_double, int verbose)[static]
Author
NAME
jpcunpack.c - Unpack a data field that was packed with JPEG2000.
SYNOPSIS
#include
’grib2_int.h’
#include <stdio.h>
#include <stdlib.h>
Functions
int
g2c_jpcunpackd
(unsigned char *cpack, size_t len, int
*idrstmpl, size_t ndpts, double *fld)
Unpack JPEG2000 compressed data into an array of doubles,
using info from the GRIB2 Data Representation
Template
5.40
or 5.40000.
int
g2c_jpcunpackf
(unsigned char *cpack, size_t len,
int *idrstmpl, size_t ndpts, float *fld)
Unpack JPEG2000 compressed data into an array of floats,
using info from the GRIB2 Data Representation
Template
5.40
or 5.40000.
g2int jpcunpack
(unsigned char *cpack,
g2int
len,
g2int
*idrstmpl,
g2int
ndpts, float *fld)
Unpack JPEG2000 compressed data into an array of floats,
using info from the GRIB2 Data Representation
Template
5.40
or 5.40000.
static int
jpcunpack_int
(unsigned char *cpack,
g2int
len,
g2int
*idrstmpl,
g2int
ndpts, void *fld, int fld_is_double, int verbose)
Unpack JPEG2000 compressed data into an array of floats or
doubles, using info from the GRIB2 Data Representation
Template 5.40
or 5.40000.
Detailed Description
Unpack a data field that was packed with JPEG2000.
stream
Author
Stephem Gilbert
Date
2003-08-27
Definition in file jpcunpack.c .
Function Documentation
int g2c_jpcunpackd (unsigned char * cpack, size_t len, int * idrstmpl,size_t ndpts, double * fld)
Unpack JPEG2000 compressed data into an array of doubles, using info from the GRIB2 Data Representation Template 5.40 or 5.40000. This function is the V2 API version of jpcunpack() for doubles.
Parameters
cpack
The packed data.
len
The length of the packed data.
idrstmpl
Pointer to array of values for Data
Representation
Template 5.40
or 5.40000.
ndpts
The number of data values to unpack.
fld
A pointer that gets the unpacked data values as an
array of double.
Returns
|
• |
G2C_NOERROR No error. |
|||
|
• |
G2C_ENOMEM Out of memory. |
Author
Ed Hartnett
Date
2022-08-12
Definition at line 199 of file jpcunpack.c .
References G2C_JPEG_DRS_TEMPLATE_LEN , jpcunpack_int() , and LOG .
int g2c_jpcunpackf (unsigned char * cpack, size_t len, int * idrstmpl,size_t ndpts, float * fld)
Unpack JPEG2000 compressed data into an array of floats, using info from the GRIB2 Data Representation Template 5.40 or 5.40000.
Parameters
cpack
The packed data.
len
The length of the packed data.
idrstmpl
Pointer to array of values for Data
Representation
Template 5.40
or 5.40000.
ndpts
The number of data values to unpack.
fld
A pointer that gets the unpacked data values as an
array of float.
Returns
|
• |
G2C_NOERROR No error. |
|||
|
• |
G2C_ENOMEM Out of memory. |
Author
Ed Hartnett
Date
2022-09-08
Definition at line 159 of file jpcunpack.c .
References G2C_JPEG_DRS_TEMPLATE_LEN , jpcunpack_int() , and LOG .
g2int jpcunpack (unsigned char * cpack, g2int len, g2int * idrstmpl, g2intndpts, float * fld)
Unpack JPEG2000 compressed data into an array of floats, using info from the GRIB2 Data Representation Template 5.40 or 5.40000.
Parameters
cpack
The packed data.
len
The length of the packed data.
idrstmpl
Pointer to array of values for Data
Representation
Template 5.40
or 5.40000.
ndpts
The number of data values to unpack.
fld
A pointer that gets the unpacked data values as an
array of float.
Returns
|
• |
G2C_NOERROR No error. |
|||
|
• |
G2_JPCUNPACK_MEM Out of memory. |
Author
Stephem Gilbert
Date
2003-08-27
Definition at line 123 of file jpcunpack.c .
References G2_JPCUNPACK_MEM , jpcunpack_int() , and LOG .
Referenced by g2c_unpack7_int() .
static int jpcunpack_int (unsigned char * cpack, g2int len, g2int *idrstmpl, g2int ndpts, void * fld, int fld_is_double, int verbose)[static]
Unpack JPEG2000 compressed data into an array of floats or doubles, using info from the GRIB2 Data Representation Template 5.40 or 5.40000. This function is used by jpcunpack() , g2c_jpcunpackf() , and g2c_jpcunpackd() .
Parameters
cpack
The packed data.
len
The length of the packed data.
idrstmpl
Pointer to array of values for Data
Representation
Template 5.40
or 5.40000.
ndpts
The number of data values to unpack.
fld
A pointer that gets the unpacked data values.
fld_is_double
Non-zero if the data are to be unpacked
into a double array, otherwise data will be unpacked into a
float array.
verbose
If non-zero, error messages will be printed in
case of error. Otherwise, error codes will be return but no
error messages printed. Calls to the original g2c API may
cause error messages to be printed in case of error. For the
new g2c_ API, no error messages will be printed - instead an
error code will be returned. Call
g2c_strerror()
to
get the error message for any error code.
Returns
|
• |
G2C_NOERROR No error. |
|||
|
• |
G2C_ENOMEM Out of memory. |
Author
Ed Hartnett
Date
2022-09-06
Definition at line 44 of file jpcunpack.c .
References dec_jpeg2000() , G2C_ENOMEM , G2C_NOERROR , int_power() , LOG , and rdieee() .
Referenced by g2c_jpcunpackd() , g2c_jpcunpackf() , and jpcunpack() .
Author
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