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/*
* time.c -- time functions
*
* Copyright (C) 2004, 2005, 2006, 2007 Svend Sorensen
* For license terms, see the file COPYING in this distribution.
*/
#include "time.h"
#include <stdio.h>
#include <stdlib.h>
long time_msf_to_frame(int m, int s, int f)
{
return (m * 60 + s) * 75 + f;
}
void time_frame_to_msf(long frame, int *m, int *s, int *f)
{
*f = frame % 75; /* 0 <= frames <= 74 */
frame /= 75;
*s = frame % 60; /* 0 <= seconds <= 59 */
frame /= 60;
*m = frame; /* 0 <= minutes */
}
/* print frame in mm:ss:ff format */
char *time_frame_to_mmssff(long f)
{
static char msf[9];
int minutes, seconds, frames;
time_frame_to_msf(f, &minutes, &seconds, &frames);
sprintf(msf, "%02d:%02d:%02d", minutes, seconds, frames);
return msf;
}
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