source: svn/trunk/newcon3bcm2_21bu/BSEAV/lib/scte65/nit/si_nit_cds.h

/***************************************************************
**
** Broadcom Corp. Confidential
** Copyright 2003-2008 Broadcom Corp. All Rights Reserved.
**
** THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED 
** SOFTWARE LICENSE AGREEMENT BETWEEN THE USER AND BROADCOM. 
** YOU HAVE NO RIGHT TO USE OR EXPLOIT THIS MATERIAL EXCEPT 
** SUBJECT TO THE TERMS OF SUCH AN AGREEMENT.
**
** File:                si_nit_cds.h
** Description: defines for the CDS subtable parse function of
**              the NIT table section. 
**
** Created: 03/08/2001 
**
** REVISION:
**
** $Log: $
**
**
****************************************************************/
#ifndef SI_NIT_CDS_H
#define SI_NIT_CDS_H


#define NIT_CDS_MAX_NUM_OF_CARRIRE_INDEX        256    /* p16 of ANSI/SCTE65 2002 (DVS234) */

#define NIT_CDS_SPACING_UNIT0   10                      /* in KHz */
#define NIT_CDS_SPACING_UNIT1   125                     /* in KHz */

#define NIT_CDS_FREQUENCY_UNIT0 10                      /* in KHz */
#define NIT_CDS_FREQUENCY_UNIT1 125                     /* in KHz */

#define NIT_CDS_SUBTABLE_SIZE   5               /* size of CDS in bytes. */

/* For the following, refer to table 5.3 of ANSI/SCTE65 2002 (DVS234) */
#define NIT_CDS_NUMBER_OF_CARRIERS_BYTE_INDX    0
#define NIT_CDS_NUMBER_OF_CARRIERS_BYTE_NUM    1
#define NIT_CDS_NUMBER_OF_CARRIERS_SHIFT    0
#define NIT_CDS_NUMBER_OF_CARRIERS_MASK    0xff

#define NIT_CDS_SPACING_UNIT_BYTE_INDX    1
#define NIT_CDS_SPACING_UNIT_BYTE_NUM    1
#define NIT_CDS_SPACING_UNIT_BYTE_SHIFT    7
#define NIT_CDS_SPACING_UNIT_BYTE_MASK    0x01

#define NIT_CDS_FREQUENCY_SPACING_BYTE_INDX    1
#define NIT_CDS_FREQUENCY_SPACING_BYTE_NUM    2
#define NIT_CDS_FREQUENCY_SPACING_BYTE_SHIFT    0
#define NIT_CDS_FREQUENCY_SPACING_BYTE_MASK    0x3fff

#define NIT_CDS_FREQUENCY_UNIT_BYTE_INDX    3
#define NIT_CDS_FREQUENCY_UNIT_BYTE_NUM    1
#define NIT_CDS_FREQUENCY_UNIT_BYTE_SHIFT    7
#define NIT_CDS_FREQUENCY_UNIT_BYTE_MASK    0x01

#define NIT_CDS_FIRST_CARRIER_FREQUENCY_BYTE_INDX    3
#define NIT_CDS_FIRST_CARRIER_FREQUENCY_BYTE_NUM    2
#define NIT_CDS_FIRST_CARRIER_FREQUENCY_BYTE_SHIFT    0
#define NIT_CDS_FIRST_CARRIER_FREQUENCY_BYTE_MASK    0x7fff
typedef struct SI_CDS_Callback_t
{
        void (*cb)(unsigned int freq_khz, int idx, void *data);
        void * data;
}SI_CDS_Callback_t;

#ifdef __cplusplus
extern "C" {
#endif

void SI_NIT_CDS_Init (SI_CDS_Callback_t *cb);
unsigned char SI_NIT_CDS_parse (unsigned char * cds_record, unsigned char idx);

#ifdef __cplusplus
}
#endif

#endif