dmTCFramesBetween man page on IRIX

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dmTCFramesBetween(3dm)					dmTCFramesBetween(3dm)

NAME
     dmTCFramesBetween - digital media timecode mathematics

SYNOPSIS
     #include <dmedia/dm_timecode.h>

     DMstatus dmTCFramesBetween
	 ( int *result,
	   const DMtimecode *a,
	   const DMtimecode *b )

TYPES
     DMtimecode	  A structure containing a representation of SMPTE time code
		  on which certain mathematical and utility functions can be
		  performed.  Can be used with:	 dmTCAddTC(3dm),
		  dmTCAddFrames(3dm), dmTCToString(3dm), dmTCFromSeconds(3dm),
		  dmTCToSeconds(3dm), dmTCFromString(3dm),
		  dmTCFramesPerDay(3dm), and dmTCFramesBetween(3dm).  Can also
		  be used with the dmLTC(3dm) and dmVITC(3dm) routines.	 See
		  also DMtimecode(3dm).

ARGUMENTS
     result The result of calculating the difference (b-a), measured
	      in frames.

     a, b     The two operands of the differencing operation.

DESCRIPTION
     dmFramesBetween is used to determine the number of frames between two
     timecodes. It returns (b - a), as measured in frames.  The result of the
     difference operation may be negative; this is not an error condition.

     Note that the operands a and b must have the same tc_type as each other.

RETURN VALUE
     If a DMtimecode operand (a or b) contains an illegal timecode value
     (e.g., a negative entry, invalid frame number, etc.), these functions
     will return DM_FAILURE, and the contents of result will be undefined.

     If the tc_type's of a and b do not match, dmTCFramesBetween will return
     DM_FAILURE, and the contents of result will be undefined.

     dmTCFramesBetween returns DM_SUCCESS upon successful completion of the
     subtraction operation.

									Page 1

dmTCFramesBetween(3dm)					dmTCFramesBetween(3dm)

SEE ALSO
     dmTCFromSeconds(3dm), dmTCToSeconds(3dm), dmTCFromString(3dm),
     dmTCFromString(3dm), dmTCFramesPerDay(3dm), dmTCFramesBetween(3dm),
     dmLTC(3dm), dmVITC(3dm)

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