/disk01/web/ocssw/build/inc/meris/epr_dsd.h File Reference

(r8084/r7671)

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

Go to the source code of this file.

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_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.

int epr_detect_meris_iodd_version

(

EPR_SProductId *

product_id

)

Definition at line 125 of file epr_dsd.c.

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.

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_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_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.