NCEPLIBS-g2c/ver-1.8.0/grib2_8h_source.html

 #ifndef _grib2_H

 #define _grib2_H

 #include <stdio.h>

 #include <stdint.h>

 #include <string.h>

 #include <sys/types.h>

 #include <unistd.h>


 #define G2C_VERSION "1.8.0"

 #define G2_PNG_ENABLED 1

 #define G2_JPEG2000_ENABLED 1

 /* #undef G2_AEC_ENABLED */


 typedef int64_t g2int;


 typedef uint64_t g2intu;


 typedef float g2float;


 struct gribfield

 {

     g2int version;


     g2int discipline;


     g2int *idsect;


     g2int idsectlen;


     unsigned char *local;


     g2int locallen;


     g2int ifldnum;


     g2int griddef;


     g2int ngrdpts;


     g2int numoct_opt;


     g2int interp_opt;


     g2int num_opt;


     g2int *list_opt;


     g2int igdtnum;


     g2int igdtlen;


     g2int *igdtmpl;


     g2int ipdtnum;


     g2int ipdtlen;


     g2int *ipdtmpl;


     g2int num_coord;


     float *coord_list;


     g2int ndpts;


     g2int idrtnum;


     g2int idrtlen;


     g2int *idrtmpl;


     g2int unpacked;


     g2int expanded;


     g2int ibmap;


     g2int *bmap;


     float *fld;

 };


 typedef struct gribfield gribfield;

 /*  Prototypes for unpacking sections API  */

 g2int g2_unpack1(unsigned char *cgrib, g2int *iofst, g2int **ids, g2int *idslen);

 g2int g2_unpack2(unsigned char *cgrib, g2int *iofst, g2int *lencsec2,

                  unsigned char **csec2);

 g2int g2_unpack3(unsigned char *cgrib, g2int *iofst, g2int **igds, g2int **igdstmpl,

                  g2int *mapgridlen, g2int **ideflist, g2int *idefnum);

 g2int g2_unpack4(unsigned char *cgrib, g2int *iofst, g2int *ipdsnum, g2int **ipdstmpl,

                  g2int *mappdslen, float **coordlist, g2int *numcoord);

 g2int g2_unpack5(unsigned char *cgrib, g2int *iofst, g2int *ndpts, g2int *idrsnum,

                  g2int **idrstmpl, g2int *mapdrslen);

 g2int g2_unpack6(unsigned char *cgrib, g2int *iofst, g2int ngpts, g2int *ibmap,

                  g2int **bmap);

 g2int g2_unpack7(unsigned char *cgrib, g2int *iofst, g2int igdsnum, g2int *igdstmpl,

                  g2int idrsnum, g2int *idrstmpl, g2int ndpts, float **fld);


 /*  Prototypes for unpacking API  */

 void seekgb(FILE *lugb, g2int iseek, g2int mseek, g2int *lskip,

             g2int *lgrib);

 g2int g2_info(unsigned char *cgrib, g2int *listsec0, g2int *listsec1,

               g2int *numfields, g2int *numlocal);

 g2int g2_getfld(unsigned char *cgrib, g2int ifldnum, g2int unpack, g2int expand,

                 gribfield **gfld);

 void g2_free(gribfield *gfld);


 /*  Prototypes for packing API  */

 g2int g2_create(unsigned char *cgrib, g2int *listsec0, g2int *listsec1);

 g2int g2_addlocal(unsigned char *cgrib, unsigned char *csec2, g2int lcsec2);

 g2int g2_addgrid(unsigned char *cgrib, g2int *igds, g2int *igdstmpl, g2int *ideflist,

                  g2int idefnum);

 g2int g2_addfield(unsigned char *cgrib, g2int ipdsnum, g2int *ipdstmpl,

                   float *coordlist, g2int numcoord, g2int idrsnum, g2int *idrstmpl,

                   float *fld, g2int ngrdpts, g2int ibmap, g2int *bmap);

 g2int g2_gribend(unsigned char *cgrib);


 /* Compression. */

 void pngpack(float *fld, g2int width, g2int height, g2int *idrstmpl,

              unsigned char *cpack, g2int *lcpack);

 g2int pngunpack(unsigned char *cpack, g2int len, g2int *idrstmpl, g2int ndpts,

                 float *fld);

 void jpcpack(float *fld, g2int width, g2int height, g2int *idrstmpl,

              unsigned char *cpack, g2int *lcpack);

 g2int jpcunpack(unsigned char *cpack, g2int len, g2int *idrstmpl, g2int ndpts,

                 float *fld);

 void aecpack(float *fld, g2int width, g2int height, g2int *idrstmpl,

              unsigned char *cpack, g2int *lcpack);

 g2int aecunpack(unsigned char *cpack, g2int len, g2int *idrstmpl, g2int ndpts,

                 float *fld);


 /* The new g2c API is being introduced in version 2.0 of the library. */


 /* Data types. */

 #define G2C_BYTE         1

 #define G2C_CHAR         2

 #define G2C_SHORT        3

 #define G2C_INT          4

 #define G2C_FLOAT        5

 #define G2C_DOUBLE       6

 #define G2C_UBYTE        7

 #define G2C_USHORT       8

 #define G2C_UINT         9

 #define G2C_INT64        10

 #define G2C_UINT64       11

 /* Defines for file handling. */

 #define G2C_MAX_FILES 3

 #define G2C_MAX_NAME 1024

 #define G2C_NOWRITE       0x0000

 #define G2C_WRITE         0x0001

 #define G2C_CLOBBER       0x0000

 #define G2C_NOCLOBBER     0x0004

 /* Useful constants. */

 #define G2C_SECTION0_BYTES 16

 #define G2C_SECTION1_BYTES 21


 #define G2C_SECTION0_LEN 3

 #define G2C_SECTION1_LEN 13

 /* Constants to help with templates. */

 #define G2C_MAX_GDS_TEMPLATE 31

 #define G2C_MAX_GDS_TEMPLATE_MAPLEN 28

 #define G2C_MAX_PDS_TEMPLATE 47

 #define G2C_MAX_PDS_TEMPLATE_MAPLEN 45

 #define G2C_MAX_DRS_TEMPLATE 10

 #define G2C_MAX_DRS_TEMPLATE_MAPLEN 18

 /* File handling functions. */

 int g2c_open(const char *path, int mode, int *g2cid);

 int g2c_open_index(const char *data_file, const char *index_file, int mode, int *g2cid);

 int g2c_close(int g2cid);

 int g2c_write_index(int g2cid, int mode, const char *index_file);


 /* GRIB1 file functions. */

 int g2c_open_index1(const char *index_file);


 /* Inquiry functions. */

 int g2c_inq(int g2cid, int *num_msg);

 int g2c_inq_msg(int g2cid, int msg_num, unsigned char *discipline, int *num_fields,

                 int *num_local, short *center, short *subcenter, unsigned char *master_version,

                 unsigned char *local_version);

 int g2c_inq_msg_time(int g2cid, int msg_num, unsigned char *sig_ref_time, short *year,

                      unsigned char *month, unsigned char *day, unsigned char *hour,

                      unsigned char *minute, unsigned char *second);

 int g2c_inq_prod(int g2cid, int msg_num, int prod_num, int *pds_template_len,

                  int *pds_template, int *gds_template_len, int *gds_template,

                  int *drs_template_len, int *drs_template);

 int g2c_inq_dim(int g2cid, int msg_num, int prod_num, int dim_num, size_t *len,

                 char *name, float *val);


 /* Getting data. */

 int g2c_get_prod(int g2cid, int msg_num, int prod_num, int *num_data_points,

                  float *data);


 /* Templates. */

 int g2c_get_grid_template(int grid_template_num, int *maplen, int *map, int *needext);

 int g2c_get_grid_template_extension(int grid_template_num, int *g2c_template,

                                     int *extlen, int *ext);

 int g2c_get_pds_template_extension(int pds_template_num, int *g2c_template,

                                    int *extlen, int *ext);

 int g2c_get_pds_template(int pds_template_num, int *maplen, int *map, int *needext);

 int g2c_get_drs_template(int drs_template_num, int *maplen, int *map, int *needext);


 /* Internal functions. */

 int g2c_get_msg(int g2cid, size_t skip_bytes, size_t max_bytes, size_t *bytes_to_msg,

                 size_t *bytes_in_msg, unsigned char **cbuf);

 int g2c_find_msg2(int g2cid, size_t skip_bytes, size_t max_bytes, size_t *bytes_to_msg,

                   size_t *bytes_in_msg);

 int g2c_xml_init();

 int g2c_find_desc_str(char *title, char *code, char *desc);

 int g2c_find_desc(char *title, int code, char *desc);

 void g2c_free_tables();

 void g2c_gbit_int(unsigned char *in, int *iout, int iskip, int nbits);

 int g2c_gbits_int(unsigned char *in, int *iout, int iskip, int nbits,

                   int nskip, int n);

 int g2c_seekmsg(int g2cid, size_t skip, size_t *offset, size_t *msglen);


 /* Logging, for debugging purposes. */

 int g2c_set_log_level(int new_level);

 int g2c_log_file(int g2cid);


 /* Error handling. */

 const char *g2c_strerror(int g2cerr);


 /* Compression. */

 int g2c_unpack7(unsigned char *cgrib, int igdsnum, int gds_tmpl_len, long long int *gdstmpl,

                 int idrsnum, int drs_tmpl_len, long long int *drstmpl, int ndpts, float *fld);

 int g2c_pngpackf(float *fld, size_t width, size_t height, int *idrstmpl,

                  unsigned char *cpack, int *lcpack);

 int g2c_pngpackd(double *fld, size_t width, size_t height, int *idrstmpl,

                  unsigned char *cpack, int *lcpack);

 int g2c_pngunpackf(unsigned char *cpack, size_t len, int *idrstmpl, size_t ndpts,

                    float *fld);

 int g2c_pngunpackd(unsigned char *cpack, size_t len, int *idrstmpl, size_t ndpts,

                    double *fld);

 int g2c_jpcpackf(float *fld, size_t width, size_t height, int *idrstmpl,

                  unsigned char *cpack, size_t *lcpack);

 int g2c_jpcpackd(double *fld, size_t width, size_t height, int *idrstmpl,

                  unsigned char *cpack, size_t *lcpack);

 int g2c_jpcunpackf(unsigned char *cpack, size_t len, int *idrstmpl, size_t ndpts,

                    float *fld);

 int g2c_jpcunpackd(unsigned char *cpack, size_t len, int *idrstmpl, size_t ndpts,

                    double *fld);

 int g2c_enc_jpeg2000(unsigned char *cin, int width, int height, int nbits,

                      int ltype, int ratio, int retry, char *outjpc,

                      size_t jpclen);

 int g2c_dec_jpeg2000(char *injpc, size_t bufsize, int *outfld);

 int g2c_aecpackf(float *fld, size_t width, size_t height, int *idrstmpl,

                  unsigned char *cpack, size_t *lcpack);

 int g2c_aecpackd(double *fld, size_t width, size_t height, int *idrstmpl,

                  unsigned char *cpack, size_t *lcpack);

 int g2c_aecunpackf(unsigned char *cpack, size_t len, int *idrstmpl, size_t ndpts,

                    float *fld);

 int g2c_aecunpackd(unsigned char *cpack, size_t len, int *idrstmpl, size_t ndpts,

                    double *fld);


 /* Testing. */

 int g2c_compare(int g2cid1, int g2cid2);


 /* Output. */

 int g2c_degrib2(int g2cid, const char *fileout);


 /* Parameters. */

 int g2c_param_g1tog2(int g1val, int g1ver, int *g2disc, int *g2cat, int *g2num);

 int g2c_param_abbrev(int g2disc, int g2cat, int g2num, char *abbrev);

 int g2c_param_g2tog1(int g2disc, int g2cat, int g2num, int *g1val, int *g1ver);

 int g2c_param_all(int param_idx, int *g1ver, int *g1val, int *g2disc, int *g2cat,

                   int *g2num, char *abbdrev);


 /* Useful constants. */

 #define G2C_SECTION0_ARRAY_LEN 3

 #define G2C_SECTION1_ARRAY_LEN 13

 #define G2C_JPEG_DRS_TEMPLATE_LEN 7

 #define G2C_PNG_DRS_TEMPLATE_LEN 5

 #define G2C_AEC_DRS_TEMPLATE_LEN 8

 #define G2C_MAX_GRIB_DESC_LEN 512

 #define G2C_MAX_GRIB_STATUS_LEN 40

 #define G2C_MAX_GRIB_LEVEL_DESC_LEN 40

 #define G2C_MAX_GRIB_CODE_LEN 20

 #define G2C_MAX_GRIB_TITLE_LEN 200

 #define G2C_MAX_NUM_SECTIONS 1024

 #define G2C_MAX_NOAA_PARAMS 2000

 #define G2C_MAX_NOAA_ABBREV_LEN 8

 #define G2C_MAX_NOAA_PARAM_LINE_LEN 120

 #define G2C_JASPER_MAX_MEM 268435456

 /* Error codes for G2 API. */

 #define G2_NO_ERROR 0

 #define G2_CREATE_GRIB_VERSION -1

 #define G2_INFO_NO_GRIB 1

 #define G2_INFO_GRIB_VERSION 2

 #define G2_INFO_NO_SEC1 3

 #define G2_INFO_WRONG_END 4

 #define G2_INFO_BAD_END 5

 #define G2_INFO_INVAL_SEC 6

 #define G2_GETFLD_NO_GRIB 1

 #define G2_GETFLD_GRIB_VERSION 2

 #define G2_GETFLD_INVAL 3

 #define G2_GETFLD_WRONG_END 4

 #define G2_GETFLD_WRONG_NFLDS 6

 #define G2_GETFLD_BAD_END 7

 #define G2_GETFLD_INVAL_SEC 8

 #define G2_GETFLD_NO_DRT 9

 #define G2_GETFLD_BAD_SEC1 15

 #define G2_GETFLD_BAD_SEC2 16

 #define G2_GETFLD_BAD_SEC3 10

 #define G2_GETFLD_BAD_SEC4 11

 #define G2_GETFLD_BAD_SEC5 12

 #define G2_GETFLD_BAD_SEC6 13

 #define G2_GETFLD_BAD_SEC7 14

 #define G2_GETFLD_NO_BITMAP 17

 #define G2_GRIBEND_MSG_INIT -1

 #define G2_BAD_SEC -4

 #define G2_UNPACK_BAD_SEC 2

 #define G2_UNPACK_NO_MEM 6

 #define G2_UNPACK3_BAD_GDT 5

 #define G2_UNPACK4_BAD_PDT 5

 #define G2_UNPACK5_BAD_DRT 7

 #define G2_UNPACK6_BAD_BITMAP 4

 #define G2_UNPACK7_CORRUPT_SEC 7

 #define G2_UNPACK7_WRONG_GDT 5

 #define G2_UNPACK7_BAD_DRT 4

 #define G2_ADD_MSG_INIT -1

 #define G2_ADD_MSG_COMPLETE -2

 #define G2_BAD_SEC_COUNTS -3

 #define G2_ADDFIELD_BAD_PDT -5

 #define G2_ADDFIELD_BAD_GDS -6

 #define G2_ADDFIELD_BAD_DRT -7

 #define G2_ADDFIELD_BAD_BITMAP -8

 #define G2_ADDFIELD_BAD_GDT -9

 #define G2_ADDFIELD_ERR -10

 #define G2_ADDGRID_BAD_GDT -5

 #define G2_JPCUNPACK_MEM 1

 #define G2_SPECUNPACK_TYPE -3

 #define G2_JASPER_INIT -2

 #define G2_JASPER_ENCODE -3

 #define G2_JASPER_DECODE -3

 #define G2_JASPER_DECODE_COLOR -5

 /* These are the new error codes. */

 #define G2C_NOERROR 0

 #define G2C_ERROR 1

 #define G2C_ENOTGRIB (-50)

 #define G2C_EMSGCOMPLETE (-51)

 #define G2C_ENAMETOOLONG (-52)

 #define G2C_EINVAL (-53)

 #define G2C_EFILE (-54)

 #define G2C_EBADID (-55)

 #define G2C_ETOOMANYFILES (-56)

 #define G2C_ENOMEM (-57)

 #define G2C_EMSG (-58)

 #define G2C_ENOMSG (-59)

 #define G2C_EXML (-60)

 #define G2C_ENOTFOUND (-61)

 #define G2C_ENOTGRIB2 (-62)

 #define G2C_ENOSECTION (-63)

 #define G2C_ENOEND (-64)

 #define G2C_EBADEND (-65)

 #define G2C_EBADSECTION (-66)

 #define G2C_EJPEG (-67)

 #define G2C_EPNG (-68)

 #define G2C_ENOTEMPLATE (-69)

 #define G2C_EBADTEMPLATE (-70)

 #define G2C_ENOPARAM (-71)

 #define G2C_ENOPRODUCT (-72)

 #define G2C_EBADTYPE (-73)

 #define G2C_EAEC (-74)

 #endif  /*  _grib2_H  */

g2_unpack5
g2int g2_unpack5(unsigned char *cgrib, g2int *iofst, g2int *ndpts, g2int *idrsnum, g2int **idrstmpl, g2int *mapdrslen)
This subroutine unpacks Section 5 (Data Representation Section) as defined in GRIB Edition 2.
Definition: g2_unpack5.c:42

gribfield::igdtnum
g2int igdtnum
Grid Definition Template Number (See Table 3.1).
Definition: grib2.h:149

jpcunpack
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 Representatio...
Definition: jpcunpack.c:124

g2_free
void g2_free(gribfield *gfld)
This routine frees up memory that was allocated for struct gribfield.
Definition: g2_free.c:24

g2c_inq_prod
int g2c_inq_prod(int g2cid, int msg_num, int prod_num, int *pds_template_len, int *pds_template, int *gds_template_len, int *gds_template, int *drs_template_len, int *drs_template)
Inquire about a product.
Definition: g2cinq.c:207

gribfield::locallen
g2int locallen
Length of array local.
Definition: grib2.h:111

g2_create
g2int g2_create(unsigned char *cgrib, g2int *listsec0, g2int *listsec1)
This routine initializes a new GRIB2 message and packs GRIB2 Section 0 (Indicator Section) and Sectio...
Definition: g2_create.c:68

gribfield::ibmap
g2int ibmap
Bitmap indicator (see Table 6.0).
Definition: grib2.h:212

g2c_inq
int g2c_inq(int g2cid, int *num_msg)
Learn about a GRIB2 file.
Definition: g2cinq.c:31

pngpack
void pngpack(float *fld, g2int width, g2int height, g2int *idrstmpl, unsigned char *cpack, g2int *lcpack)
This subroutine packs up a float data field into PNG image format.
Definition: pngpack.c:242

g2c_open_index
int g2c_open_index(const char *data_file, const char *index_file, int mode, int *g2cid)
Open a GRIB2 file with the help of an index file.
Definition: g2cindex.c:786

g2_addgrid
g2int g2_addgrid(unsigned char *cgrib, g2int *igds, g2int *igdstmpl, g2int *ideflist, g2int idefnum)
This routine packs up a Grid Definition Section (Section 3) and adds it to a GRIB2 message.
Definition: g2_addgrid.c:70

g2c_strerror
const char * g2c_strerror(int g2cerr)
Given an error code, return an error message.
Definition: g2cutil.c:29

g2c_jpcunpackd
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 Representati...
Definition: jpcunpack.c:200

g2c_aecpackf
int g2c_aecpackf(float *fld, size_t width, size_t height, int *idrstmpl, unsigned char *cpack, size_t *lcpack)
This function packs up a float array into a AEC code stream.
Definition: aecpack.c:346

gribfield::interp_opt
g2int interp_opt
Interpretation of list for optional points definition.
Definition: grib2.h:134

gribfield::ngrdpts
g2int ngrdpts
Number of grid points in the defined grid.
Definition: grib2.h:124

g2c_find_desc_str
int g2c_find_desc_str(char *title, char *code, char *desc)
Given a table title and a code, find a description.
Definition: g2cxml.c:84

g2c_dec_jpeg2000
int g2c_dec_jpeg2000(char *injpc, size_t bufsize, int *outfld)
This Function decodes a JPEG2000 code stream specified in the JPEG2000 Part-1 standard (i....
Definition: dec_jpeg2000.c:174

g2c_open
int g2c_open(const char *path, int mode, int *g2cid)
Open an existing GRIB2 file.
Definition: g2cfile.c:1193

pngunpack
g2int pngunpack(unsigned char *cpack, g2int len, g2int *idrstmpl, g2int ndpts, float *fld)
This subroutine unpacks a data field that was packed into a PNG image format using info from the GRIB...
Definition: pngunpack.c:117

seekgb
void seekgb(FILE *lugb, g2int iseek, g2int mseek, g2int *lskip, g2int *lgrib)
Search a file for the next GRIB Message.
Definition: seekgb.c:46

g2c_jpcpackd
int g2c_jpcpackd(double *fld, size_t width, size_t height, int *idrstmpl, unsigned char *cpack, size_t *lcpack)
This function packs up a double array into a JPEG2000 code stream.
Definition: jpcpack.c:387

g2c_param_g2tog1
int g2c_param_g2tog1(int g2disc, int g2cat, int g2num, int *g1val, int *g1ver)
Translate GRIB2 parameter to GRIB1 parameter.
Definition: g2cparams.c:1136

gribfield::ifldnum
g2int ifldnum
Field number within GRIB message.
Definition: grib2.h:114

g2c_jpcunpackf
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 Representatio...
Definition: jpcunpack.c:160

g2float
float g2float
Float type.
Definition: grib2.h:41

g2c_param_abbrev
int g2c_param_abbrev(int g2disc, int g2cat, int g2num, char *abbrev)
Get NOAA abbreviation for a GRIB2 parameter.
Definition: g2cparams.c:1091

g2c_open_index1
int g2c_open_index1(const char *index_file)
Open a GRIB1 index file and read the contents.
Definition: g2cindex.c:685

g2c_pngunpackd
int g2c_pngunpackd(unsigned char *cpack, size_t len, int *idrstmpl, size_t ndpts, double *fld)
This subroutine unpacks a data field that was packed into a PNG image format using info from the GRIB...
Definition: pngunpack.c:179

g2_unpack7
g2int g2_unpack7(unsigned char *cgrib, g2int *iofst, g2int igdsnum, g2int *igdstmpl, g2int idrsnum, g2int *idrstmpl, g2int ndpts, float **fld)
This subroutine unpacks Section 7 (Data Section) of a GRIB2 message.
Definition: g2_unpack7.c:214

g2_unpack4
g2int g2_unpack4(unsigned char *cgrib, g2int *iofst, g2int *ipdsnum, g2int **ipdstmpl, g2int *mappdslen, float **coordlist, g2int *numcoord)
This subroutine unpacks Section 4 (Product Definition Section) as defined in GRIB Edition 2.
Definition: g2_unpack4.c:46

g2c_aecunpackd
int g2c_aecunpackd(unsigned char *cpack, size_t len, int *idrstmpl, size_t ndpts, double *fld)
Unpack AEC compressed data into an array of doubles, using info from the GRIB2 Data Representation Te...
Definition: aecunpack.c:210

gribfield::griddef
g2int griddef
Source of grid definition (see Table 3.0).
Definition: grib2.h:121

g2c_find_desc
int g2c_find_desc(char *title, int code, char *desc)
Given a table title and an integer code, find a description.
Definition: g2cxml.c:132

gribfield::ipdtnum
g2int ipdtnum
Product Definition Template Number (see Table 4.0).
Definition: grib2.h:161

gribfield::ipdtmpl
g2int * ipdtmpl
Contains the data values for the Product Definition Template specified by ipdtnum.
Definition: grib2.h:169

gribfield::discipline
g2int discipline
Message Discipline (see Table 0.0).
Definition: grib2.h:53

g2_unpack2
g2int g2_unpack2(unsigned char *cgrib, g2int *iofst, g2int *lencsec2, unsigned char **csec2)
This subroutine unpacks Section 2 (Local Use Section) as defined in GRIB Edition 2.
Definition: g2_unpack2.c:38

g2c_enc_jpeg2000
int g2c_enc_jpeg2000(unsigned char *cin, int width, int height, int nbits, int ltype, int ratio, int retry, char *outjpc, size_t jpclen)
This Function encodes a grayscale image into a JPEG2000 code stream specified in the JPEG2000 Part-1 ...
Definition: enc_jpeg2000.c:51

gribfield::numoct_opt
g2int numoct_opt
Number of octets needed for each additional grid points definition.
Definition: grib2.h:129

aecunpack
g2int aecunpack(unsigned char *cpack, g2int len, g2int *idrstmpl, g2int ndpts, float *fld)
Unpack AEC compressed data into an array of floats, using info from the GRIB2 Data Representation Tem...
Definition: aecunpack.c:139

g2_unpack1
g2int g2_unpack1(unsigned char *cgrib, g2int *iofst, g2int **ids, g2int *idslen)
This subroutine unpacks Section 1 - Identification Section as defined in GRIB Edition 2.
Definition: g2_unpack1.c:55

g2c_get_pds_template
int g2c_get_pds_template(int pds_template_num, int *maplen, int *map, int *needext)
Get PDS template information.
Definition: pdstemplates.c:816

g2c_pngpackd
int g2c_pngpackd(double *fld, size_t width, size_t height, int *idrstmpl, unsigned char *cpack, int *lcpack)
This subroutine packs up a double data field into PNG image format.
Definition: pngpack.c:336

gribfield::idrtlen
g2int idrtlen
Number of elements in idrtmpl.
Definition: grib2.h:187

g2c_get_grid_template_extension
int g2c_get_grid_template_extension(int grid_template_num, int *g2c_template, int *extlen, int *ext)
Get grid template extension information.
Definition: gridtemplates.c:301

g2c_xml_init
int g2c_xml_init()
Init.
Definition: g2cxml.c:190

g2c_close
int g2c_close(int g2cid)
Close a GRIB2 file, freeing resources.
Definition: g2cfile.c:1357

gribfield::unpacked
g2int unpacked
Logical value indicating whether the bitmap and data values were unpacked.
Definition: grib2.h:195

g2c_jpcpackf
int g2c_jpcpackf(float *fld, size_t width, size_t height, int *idrstmpl, unsigned char *cpack, size_t *lcpack)
This function packs up a float array into a JPEG2000 code stream.
Definition: jpcpack.c:321

g2c_degrib2
int g2c_degrib2(int g2cid, const char *fileout)
Write a summary file like the degrib2 utility.
Definition: g2cdegrib2.c:637

g2_unpack6
g2int g2_unpack6(unsigned char *cgrib, g2int *iofst, g2int ngpts, g2int *ibmap, g2int **bmap)
This subroutine unpacks Section 6 (Bit-Map Section) as defined in GRIB Edition 2.
Definition: g2_unpack6.c:33

g2_gribend
g2int g2_gribend(unsigned char *cgrib)
This routine finalizes a GRIB2 message after all grids and fields have been added.
Definition: g2_gribend.c:37

g2c_pngunpackf
int g2c_pngunpackf(unsigned char *cpack, size_t len, int *idrstmpl, size_t ndpts, float *fld)
This subroutine unpacks a data field that was packed into a PNG image format using info from the GRIB...
Definition: pngunpack.c:147

gribfield::idsectlen
g2int idsectlen
Number of elements in idsect.
Definition: grib2.h:104

gribfield::ipdtlen
g2int ipdtlen
Number of elements in ipdtmpl - i.e.
Definition: grib2.h:165

g2c_inq_dim
int g2c_inq_dim(int g2cid, int msg_num, int prod_num, int dim_num, size_t *len, char *name, float *val)
Learn about the one of the dimensions of a GRIB2 product.
Definition: g2cinq.c:328

g2c_inq_msg_time
int g2c_inq_msg_time(int g2cid, int msg_num, unsigned char *sig_ref_time, short *year, unsigned char *month, unsigned char *day, unsigned char *hour, unsigned char *minute, unsigned char *second)
Learn about the date/time information in a GRIB2 message.
Definition: g2cinq.c:149

g2intu
uint64_t g2intu
Unsigned long integer type.
Definition: grib2.h:37

gribfield::coord_list
float * coord_list
Array containing floating point values intended to document the vertical discretisation associated to...
Definition: grib2.h:177

g2c_free_tables
void g2c_free_tables()
Free table memory.
Definition: g2cxml.c:42

g2c_get_msg
int g2c_get_msg(int g2cid, size_t skip_bytes, size_t max_bytes, size_t *bytes_to_msg, size_t *bytes_in_msg, unsigned char **cbuf)
Search a file for the next GRIB1 or GRIB2 message, and read it, allocating space in memory to hold th...
Definition: g2cfile.c:293

g2c_set_log_level
int g2c_set_log_level(int new_level)
Use this to set the global log level.
Definition: util.c:124

g2c_inq_msg
int g2c_inq_msg(int g2cid, int msg_num, unsigned char *discipline, int *num_fields, int *num_local, short *center, short *subcenter, unsigned char *master_version, unsigned char *local_version)
Learn about a GRIB2 message.
Definition: g2cinq.c:86

gribfield::igdtmpl
g2int * igdtmpl
Contains the data values for the Grid Definition Template specified by igdtnum.
Definition: grib2.h:157

gribfield::idrtnum
g2int idrtnum
Data Representation Template Number (see Table 5.0).
Definition: grib2.h:184

g2c_write_index
int g2c_write_index(int g2cid, int mode, const char *index_file)
Create an index file from a GRIB2 file, just like those created by the grb2index utility.
Definition: g2cindex.c:346

g2_addlocal
g2int g2_addlocal(unsigned char *cgrib, unsigned char *csec2, g2int lcsec2)
This routine adds a Local Use Section (Section 2) to a GRIB2 message.
Definition: g2_addlocal.c:40

gribfield::ndpts
g2int ndpts
Number of data points unpacked and returned.
Definition: grib2.h:180

g2c_get_drs_template
int g2c_get_drs_template(int drs_template_num, int *maplen, int *map, int *needext)
Get DRS template information.
Definition: drstemplates.c:261

g2c_param_all
int g2c_param_all(int param_idx, int *g1ver, int *g1val, int *g2disc, int *g2cat, int *g2num, char *abbdrev)
Return all the information about a parameter.
Definition: g2cparams.c:1185

gribfield::idrtmpl
g2int * idrtmpl
Contains the data values for the Data Representation Template specified by idrtnum.
Definition: grib2.h:191

g2c_find_msg2
int g2c_find_msg2(int g2cid, size_t skip_bytes, size_t max_bytes, size_t *bytes_to_msg, size_t *bytes_in_msg)
Search a file for the next GRIB1 or GRIB2 message.
Definition: g2cfile.c:164

gribfield::list_opt
g2int * list_opt
(Used if numoct_opt .ne.
Definition: grib2.h:145

g2c_get_prod
int g2c_get_prod(int g2cid, int msg_num, int prod_num, int *num_data_points, float *data)
Read the data for a product.
Definition: g2cprod.c:28

g2c_param_g1tog2
int g2c_param_g1tog2(int g1val, int g1ver, int *g2disc, int *g2cat, int *g2num)
Translate GRIB1 parameter to GRIB2 parameter.
Definition: g2cparams.c:1051

g2c_unpack7
int g2c_unpack7(unsigned char *cgrib, int igdsnum, int gds_tmpl_len, long long int *gdstmpl, int idrsnum, int drs_tmpl_len, long long int *drstmpl, int ndpts, float *fld)
This subroutine unpacks Section 7 (Data Section) of a GRIB2 message.
Definition: g2_unpack7.c:259

g2c_get_pds_template_extension
int g2c_get_pds_template_extension(int pds_template_num, int *g2c_template, int *extlen, int *ext)
Get pds template extension information.
Definition: pdstemplates.c:741

g2_getfld
g2int g2_getfld(unsigned char *cgrib, g2int ifldnum, g2int unpack, g2int expand, gribfield **gfld)
This subroutine returns all the metadata, template values, bit-map (if applicable),...
Definition: g2_getfld.c:91

g2_info
g2int g2_info(unsigned char *cgrib, g2int *listsec0, g2int *listsec1, g2int *numfields, g2int *numlocal)
This subroutine searches through a GRIB2 message and returns the number of gridded fields found in th...
Definition: g2_info.c:68

gribfield::version
g2int version
GRIB edition number (2).
Definition: grib2.h:49

jpcpack
void jpcpack(float *fld, g2int width, g2int height, g2int *idrstmpl, unsigned char *cpack, g2int *lcpack)
This function packs up a float array into a JPEG2000 code stream.
Definition: jpcpack.c:270

g2c_aecpackd
int g2c_aecpackd(double *fld, size_t width, size_t height, int *idrstmpl, unsigned char *cpack, size_t *lcpack)
This function packs up a double array into a AEC code stream.
Definition: aecpack.c:410

g2c_log_file
int g2c_log_file(int g2cid)
Print a summary of the contents of an open GRIB2 file.
Definition: g2cutil.c:188

g2_addfield
g2int g2_addfield(unsigned char *cgrib, g2int ipdsnum, g2int *ipdstmpl, float *coordlist, g2int numcoord, g2int idrsnum, g2int *idrstmpl, float *fld, g2int ngrdpts, g2int ibmap, g2int *bmap)
This routine packs up Sections 4 through 7 for a given field and adds them to a GRIB2 message.
Definition: g2_addfield.c:99

gribfield::idsect
g2int * idsect
Contains the entries in the Identification Section (Section 1).
Definition: grib2.h:101

gribfield::fld
float * fld
Array of ndpts unpacked data points.
Definition: grib2.h:219

gribfield::num_coord
g2int num_coord
Number of values in array coord_list.
Definition: grib2.h:172

g2_unpack3
g2int g2_unpack3(unsigned char *cgrib, g2int *iofst, g2int **igds, g2int **igdstmpl, g2int *mapgridlen, g2int **ideflist, g2int *idefnum)
This routine unpacks Section 3 (Grid Definition Section) from a GRIB2 message.
Definition: g2_unpack3.c:62

g2c_gbits_int
int g2c_gbits_int(unsigned char *in, int *iout, int iskip, int nbits, int nskip, int n)
Get bits - unpack bits: Extract arbitrary size values from a packed bit string, right justifying each...
Definition: gbits.c:139

gribfield::local
unsigned char * local
Pointer to character array containing contents of Local Section 2, if included.
Definition: grib2.h:108

gribfield::expanded
g2int expanded
Logical value indicating whether the data field was expanded to the grid in the case where a bit-map ...
Definition: grib2.h:204

gribfield::num_opt
g2int num_opt
(Used if numoct_opt .ne.
Definition: grib2.h:140

g2c_pngpackf
int g2c_pngpackf(float *fld, size_t width, size_t height, int *idrstmpl, unsigned char *cpack, int *lcpack)
This subroutine packs up a float data field into PNG image format.
Definition: pngpack.c:282

gribfield::igdtlen
g2int igdtlen
Number of elements in igdtmpl - i.e.
Definition: grib2.h:153

g2c_compare
int g2c_compare(int g2cid1, int g2cid2)
Compare the metadata of two open GRIB2 files.
Definition: g2ccompare.c:28

gribfield::bmap
g2int * bmap
Integer array containing decoded bitmap, if ibmap=0 or ibap=254.
Definition: grib2.h:216

g2c_aecunpackf
int g2c_aecunpackf(unsigned char *cpack, size_t len, int *idrstmpl, size_t ndpts, float *fld)
Unpack AEC compressed data into an array of floats, using info from the GRIB2 Data Representation Tem...
Definition: aecunpack.c:172

g2int
int64_t g2int
Long integer type.
Definition: grib2.h:33

g2c_get_grid_template
int g2c_get_grid_template(int grid_template_num, int *maplen, int *map, int *needext)
Get grid template information.
Definition: gridtemplates.c:376

g2c_seekmsg
int g2c_seekmsg(int g2cid, size_t skip, size_t *offset, size_t *msglen)
Search a file for the next GRIB2 Message.
Definition: g2cfile.c:56

g2c_gbit_int
void g2c_gbit_int(unsigned char *in, int *iout, int iskip, int nbits)
Get bits - unpack bits: Extract arbitrary size values from a packed bit string, right justifying each...
Definition: gbits.c:114

aecpack
void aecpack(float *fld, g2int width, g2int height, g2int *idrstmpl, unsigned char *cpack, g2int *lcpack)
This function packs up a float array into a AEC code stream.
Definition: aecpack.c:297

gribfield
Struct for GRIB field.
Definition: grib2.h:47