epr_dsd.c File Reference

#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "epr_api.h"
#include "epr_core.h"
#include "epr_string.h"
#include "epr_ptrarray.h"
#include "epr_swap.h"
#include "epr_field.h"
#include "epr_record.h"
#include "epr_param.h"
#include "epr_dsd.h"
#include "epr_msph.h"
#include "epr_band.h"
#include "epr_bitmask.h"
#include "epr_dddb.h"

Include dependency graph for epr_dsd.c:

Go to the source code of this file.

Macros
#define	EPR_LENGTH_DS_NAME_IDENTIFIER   9
#define	EPR_LENGTH_DS_TYPE_IDENTIFIER   8
#define	EPR_LENGTH_FILENAME_IDENTIFIER   10
#define	EPR_LENGTH_DS_OFFSEN_IDENTIFIER   11
#define	EPR_LENGTH_DS_SIZE_IDENTIFIER   9
#define	EPR_LENGTH_NUM_DSR_IDENTIFIER   9
#define	EPR_LENGTH_DSR_SIZE_IDENTIFIER   10
#define	EPR_LENGTH_DS_NAME_FIELD   39
#define	EPR_LENGTH_DS_TYPE_FIELD   10
#define	EPR_LENGTH_DS_FILENAME_FIELD   74
#define	EPR_LENGTH_DS_OFFSEN_FIELD   39
#define	EPR_LENGTH_DS_SIZE_FIELD   37
#define	EPR_LENGTH_NUM_DSR_FIELD   20
#define	EPR_LENGTH_DSR_SIZE_FIELD   28
#define	EPR_LENGTH_EMPTY_FIELD   33
#define	EPR_LENGTH_NUM_DSD_FIELD   20

Functions
EPR_SDSD *	epr_create_dsd (int dsd_index)
epr_uint	epr_get_num_datasets (EPR_SProductId *product_id)
EPR_SDatasetId *	epr_get_dataset_id_at (EPR_SProductId *product_id, epr_uint index)
EPR_SDatasetId *	epr_get_dataset_id (EPR_SProductId *product_id, const char *dataset_name)
int	epr_detect_meris_iodd_version (EPR_SProductId *product_id)
void	epr_free_dsd (EPR_SDSD *dsd)
EPR_SDSD *	epr_read_each_dsd (FILE *envisat_source_file, int *pos)
epr_uint	epr_find_first_dsd (FILE *envisat_source_file, epr_uint sph_length)
EPR_SPtrArray *	epr_read_all_dsds (EPR_SProductId *product_id)
epr_uint	epr_get_num_dsds (const EPR_SProductId *product_id)
EPR_SDSD *	epr_get_dsd_at (const EPR_SProductId *product_id, epr_uint dsd_index)

Macro Definition Documentation

EPR_LENGTH_DS_FILENAME_FIELD

#define EPR_LENGTH_DS_FILENAME_FIELD   74

Definition at line 209 of file epr_dsd.c.

EPR_LENGTH_DS_NAME_FIELD

#define EPR_LENGTH_DS_NAME_FIELD   39

Definition at line 207 of file epr_dsd.c.

EPR_LENGTH_DS_NAME_IDENTIFIER

#define EPR_LENGTH_DS_NAME_IDENTIFIER   9

Definition at line 199 of file epr_dsd.c.

EPR_LENGTH_DS_OFFSEN_FIELD

#define EPR_LENGTH_DS_OFFSEN_FIELD   39

Definition at line 210 of file epr_dsd.c.

EPR_LENGTH_DS_OFFSEN_IDENTIFIER

#define EPR_LENGTH_DS_OFFSEN_IDENTIFIER   11

Definition at line 202 of file epr_dsd.c.

EPR_LENGTH_DS_SIZE_FIELD

#define EPR_LENGTH_DS_SIZE_FIELD   37

Definition at line 211 of file epr_dsd.c.

EPR_LENGTH_DS_SIZE_IDENTIFIER

#define EPR_LENGTH_DS_SIZE_IDENTIFIER   9

Definition at line 203 of file epr_dsd.c.

EPR_LENGTH_DS_TYPE_FIELD

#define EPR_LENGTH_DS_TYPE_FIELD   10

Definition at line 208 of file epr_dsd.c.

EPR_LENGTH_DS_TYPE_IDENTIFIER

#define EPR_LENGTH_DS_TYPE_IDENTIFIER   8

Definition at line 200 of file epr_dsd.c.

EPR_LENGTH_DSR_SIZE_FIELD

#define EPR_LENGTH_DSR_SIZE_FIELD   28

Definition at line 213 of file epr_dsd.c.

EPR_LENGTH_DSR_SIZE_IDENTIFIER

#define EPR_LENGTH_DSR_SIZE_IDENTIFIER   10

Definition at line 205 of file epr_dsd.c.

EPR_LENGTH_EMPTY_FIELD

#define EPR_LENGTH_EMPTY_FIELD   33

Definition at line 215 of file epr_dsd.c.

EPR_LENGTH_FILENAME_IDENTIFIER

#define EPR_LENGTH_FILENAME_IDENTIFIER   10

Definition at line 201 of file epr_dsd.c.

EPR_LENGTH_NUM_DSD_FIELD

#define EPR_LENGTH_NUM_DSD_FIELD   20

Definition at line 460 of file epr_dsd.c.

EPR_LENGTH_NUM_DSR_FIELD

#define EPR_LENGTH_NUM_DSR_FIELD   20

Definition at line 212 of file epr_dsd.c.

EPR_LENGTH_NUM_DSR_IDENTIFIER

#define EPR_LENGTH_NUM_DSR_IDENTIFIER   9

Definition at line 204 of file epr_dsd.c.

Function Documentation

epr_create_dsd()

EPR_SDSD* epr_create_dsd

(

int

dsd_index

)

Opens dsd for a dataset description, obtained from an ENVISAT product file.

Parameters

dsd_index

the number of dsd (zero-based), emrty dsd inclusive

Returns

the the pointer at the dsd information.

Definition at line 48 of file epr_dsd.c.

epr_detect_meris_iodd_version()

int epr_detect_meris_iodd_version

(

EPR_SProductId *

product_id

)

Definition at line 125 of file epr_dsd.c.

epr_find_first_dsd()

epr_uint epr_find_first_dsd	(	FILE *	envisat_source_file,
		epr_uint	sph_length
	)

Finds the first dataset description from an ENVISAT product file.

Parameters

envisat_source_file	the handle of the given ENVISAT product file, must not be NULL
sph_length	[bytes] the length of SPH part from the given ENVISAT product file, must not be NULL

Returns

the offset to first searched for dsd or 0 if not found.

Definition at line 433 of file epr_dsd.c.

epr_free_dsd()

void epr_free_dsd

(

EPR_SDSD *

dsd

)

Release the memory allocated through a dataset ID.

Parameters

dsd	the dataset description identifier, if NULL the function immediately returns zero.

Returns

zero for success, an error code otherwise

Definition at line 175 of file epr_dsd.c.

epr_read_all_dsds()

EPR_SPtrArray* epr_read_all_dsds

(

EPR_SProductId *

product_id

)

Reads all dataset descriptions from an ENVISAT product file.

Parameters

product_id

the file identifier, if NULL the function immediately returns NULL.

Returns

an array of dataset descriptions or NULL if an error occured.

Definition at line 469 of file epr_dsd.c.

epr_read_each_dsd()

EPR_SDSD* epr_read_each_dsd	(	FILE *	envisat_source_file,
		int *	pos
	)

Reads a dataset description from an ENVISAT product file.

Parameters

envisat_source_file	the handle of the given ENVISAT product file, must not be NULL
pos	number of the dataset description in ENVISAT product file,

Returns

a new dataset description or NULL if an error occured.

Definition at line 226 of file epr_dsd.c.