Product IO
[Input / Output]

Functions
EPR_SProductId *	epr_open_product (const char *product_file_path)
	Opens the ENVISAT product file with the given file path, reads MPH, SPH and all DSDs, organized the table with parameter of line length and tie points number; returns a file identifier for the product.
int	epr_close_product (EPR_SProductId *product_id)
	Closes the ENVISAT product file determined by the given product identifier.

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Function Documentation

EPR_SProductId* epr_open_product

(

const char *

product_file_path

)

Opens the ENVISAT product file with the given file path,
reads MPH, SPH and all DSDs,
organized the table with parameter of line length and tie points number;
returns a file identifier for the product.

The ENVISAT product reader API must be initialized before.

Parameters:

product_file_path

the path to the ENVISAT product file

Returns:

the product identifier, or NULL if the file could not be opened. epr_get_error_code() should be called in this case in order to obtain the error code.

int epr_close_product

(

EPR_SProductId *

product_id

)

Closes the ENVISAT product file determined by the given product identifier.

Parameters:

product_id

the product identifier, if NULL the function immediately returns zero.

Returns:

zero for success, an error code otherwise