vitc.h

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/*------------------------------------------------------------------------

$Workfile: VITC.H $
$Date: 8/06/96 4:09p $
$Revision: 1 $
* Purpose:	
*
* Notes:       
*
$History: VITC.H $
 * 
 * *****************  Version 1  *****************
 * User: Stevel       Date: 8/06/96    Time: 4:09p
 * Created in $/601rpman/ihbmbwc
 * Initialize Release.

  
    This code and information is provided "as is" without warranty of any
    kind, either expressed or implied, including but not limited to the
    implied warranties of merchantability and/or fitness for a particular
    purpose.
  
    1996 Analog Devices, Inc. 
  
-------------------------------------------------------------------------*/
#ifndef VITC_H
#define VITC_H

#include "dtype.h"

typedef  unsigned long FIELD;

/////////////////////////////////////////
// Left justify definition for VITC code
/////////////////////////////////////////
struct vitcfields 
{
    FIELD sync2bit4     	:2;	// VITC Bit	30-31
    FIELD user_group_3  	:4;	// VITC Bit 26-29
    FIELD sec_units     	:4;	// VITC Bit 22-25
    FIELD sync2bit3     	:2;	// VITC Bit 20-21
	FIELD user_group_2  	:4;	// VITC Bit 16-19
    FIELD color_frame_flag	:1;	// VITC Bit 15
    FIELD drop_frame_flag 	:1;	// VITC Bit 14
    FIELD fnum_tens     	:2;	// VITC Bit 12-13
    FIELD sync2bit2     	:2;	// VITC Bit 10-11
    FIELD user_group_1  	:4;	// VITC Bit 06-09
    FIELD fnum_units    	:4;	// VITC Bit 02-05
    FIELD sync2bit1     	:2;	// VITC Bit 00-01

    FIELD hour_units_low	:2;	// VITC Bit 62-63
    FIELD sync2bit7     	:2;	// VITC Bit 60-61
    FIELD user_group_6  	:4;	// VITC Bit 56-59	
    FIELD bin_group_flag    :1;	// VITC Bit 55
    FIELD min_tens      	:3;	// VITC Bit 52-54
    FIELD sync2bit6     	:2;	// VITC Bit 50-51
    FIELD user_group_5  	:4;	// VITC Bit 46-49
    FIELD min_units     	:4;	// VITC Bit 42-45
    FIELD sync2bit5     	:2;	// VITC Bit 40-41
    FIELD user_group_4  	:4;	// VITC Bit 36-39
    FIELD field_num_525 	:1;	// VITC Bit 35
    FIELD sec_tens      	:3;	// VITC Bit 32-34

    FIELD user_group_9  	:6;	// VITC Bit 90-95
    FIELD crc_group     	:8;	// VITC Bit 82-89
    FIELD sync2bit9     	:2;	// VITC Bit 80-81
    FIELD user_group_8  	:4;	// VITC Bit 76-79
    FIELD field_num_625 	:1;	// VITC Bit 75
    FIELD pad0          	:1;	// VITC Bit 74
    FIELD hour_tens     	:2;	// VITC Bit 72-73
    FIELD sync2bit8     	:2;	// VITC Bit 70-71
    FIELD user_group_7  	:4;	// VITC Bit 66-69
    FIELD hour_units_high	:2;	// VITC Bit 64-65
};


typedef union vitc 
{
    struct 	vitcfields vitc_fields;
    dword 	vitc_array[3];
} VITCTYPE;

struct moderegfields 
{
    byte 		v_i_format:4;
    byte 		v_i_active:1;
    byte 		v_i_master:1;
    byte 		flag_sqpixel_625:2; /* up^ bit: 625 flag, down`' bit: sqpixel flag */
    byte 		flag_unipolar:1;
    byte 		flag_externdsp:1;
};

typedef struct vitcinfo 
{
    byte 		field;
    byte 		frame;
    byte 		seconds;
    byte 		minutes;
    byte 		hours;
    byte 		compratio;
    union 
    {
		word 	moderegister;
		struct 	moderegfields mrfields;
    } modereg;
    word 		hstart:10;
    word		vstart:10;
    word 		hend:10;
    word 		vend:10;
	word  		crc;
} VITCINFO;

#define MAX_STRING 35
typedef struct modereginfo 
{
    char* 		video_interface;
    char* 		interface_active;
    char* 		m_s_control;
    char* 		image_type;
    char* 		color_range;
    char* 		dsp_type;
    word 		image_height;
    word 		image_width;
} MODEREGINFO;

extern int get_vitc_info(VITCTYPE *vt, VITCINFO *v);

extern void put_vitc_info(VITCINFO *v, VITCTYPE *vt);

extern void get_modereg_info(struct moderegfields *mrf, MODEREGINFO *minfo);

extern byte get_crc_state(VITCTYPE *vt);

extern void write_crc(VITCTYPE *vt);

extern unsigned char ReadLeftJustifyBits(byte, int);


#endif /*VITC_H*/