fpa1_rdf.h File Reference

Contains functions/globals used to read MHEG-5 ASN.1 scripts. More...

#include "vpa1_sys.h"
#include "fpa1_syn.h"

Go to the source code of this file.

Functions
int	fpa1_rdfGetTag (void)
vpa1_filePos	fpa1_rdfGetContentLength (void)
vpa1_filePos	fpa1_rdfGetCurrentFilePosition (void)
int	fpa1_rdfGetNextByte (void)
vpa1_filePos	fpa1_rdfGetNextTagPosn (void)
int	fpa1_rdfGetInteger (vpa1_filePos)
void	fpa1_rdfGetOctetString (char *, vpa1_filePos)
void	fpa1_rdfMoveToContents (void)
int	fpa1_rdfSetNewFilePosition (vpa1_filePos)
int	fpa1_rdfGetByteAbsolute (vpa1_filePos)
int	fpa1_rdfGetIntegerAbsolute (vpa1_filePos, int)
int	fpa1_rdfGetBooleanAbsolute (vpa1_filePos)
fpa1_syntaxList *	fpa1_parseScriptASN (unsigned char *asndata, unsigned long len)
	Top level entry point to the ASN.1 script to fpa1_syntaxList converter. This function takes the original ASN.1 script as a character array and returns a pointer to a syntax list representing the contents of the ASN.1 script. More...

Variables
unsigned char *	fpa1_outputBufferStart
unsigned long	fpa1_outputBufferOffset
int	fpa1_GenericDataCount
int	fpa1_GroupActionCount
int	fpa1_GroupParamCount

Detailed Description

Contains functions/globals used to read MHEG-5 ASN.1 scripts.

Date

25/02/00

Author

J.F.Scully

Function Documentation

fpa1_syntaxList* fpa1_parseScriptASN	(	unsigned char *	asndata,
		unsigned long	len
	)

Top level entry point to the ASN.1 script to fpa1_syntaxList converter. This function takes the original ASN.1 script as a character array and returns a pointer to a syntax list representing the contents of the ASN.1 script.

Parameters

asndata	ASN.1 script (as character array)
len	Length of asn.1 script.

Returns

*fpa1_syntaxList

int fpa1_rdfGetBooleanAbsolute

(

vpa1_filePos

pos

)

Gets a boolean from the current ASN.1 file buffer. Does no range checking.

Parameters

pos	file position for read

Returns

int

int fpa1_rdfGetByteAbsolute

(

vpa1_filePos

pos

)

Gets a byte from the current ASN.1 file buffer.

Parameters

pos	file position for read

Returns

int

vpa1_filePos fpa1_rdfGetContentLength

(

void

)

Returns

vpa1_filePos fpa1_rdfGetCurrentFilePosition

(

void

)

Returns

int fpa1_rdfGetInteger

(

vpa1_filePos

intLength

)

Returns

int fpa1_rdfGetIntegerAbsolute	(	vpa1_filePos	pos,
		int	intLength
	)

Gets an integer (in hex format) from the current ASN.1 file buffer.

Parameters

pos	file position for read.
tLength	in Number of bytes representing the integer (between 1 and 4)

Returns

int

int fpa1_rdfGetNextByte

(

void

)

Returns

vpa1_filePos fpa1_rdfGetNextTagPosn

(

void

)

Returns

int fpa1_rdfGetTag

(

void

)

Returns

void fpa1_rdfMoveToContents

(

void

)

strPtr must point to an array of length + 1 (to allow for teh NULL char).

Returns

int fpa1_rdfSetNewFilePosition

(

vpa1_filePos

newPosition

)

To be used only to set tag positions.

Returns