epr_dsd.h File Reference

#include "epr_ptrarray.h"
#include <stdio.h>

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Functions
EPR_SDSD *	epr_create_dsd (int dsd_index)
void	epr_free_dsd (EPR_SDSD *dsd)
EPR_SDSD *	epr_read_each_dsd (FILE *envisat_source_file, int *pos)
EPR_SPtrArray *	epr_read_all_dsds (EPR_SProductId *product_id)
epr_uint	epr_find_first_dsd (FILE *envisat_source_file, epr_uint sph_length)
int	epr_detect_meris_iodd_version (EPR_SProductId *product_id)

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 founded dsd or 0 if not found.

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 description, obtained from an ENVISAT product file.

Parameters

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

Returns

zero for success, an error code otherwise

See also

epr_free_dsd_id

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.