|
1234567891011121314151617181920212223242526272829303132333435363738394041424344 |
- /*
- * time.c -- time functions
- *
- * Copyright (C) 2004 Svend Sorensen
- * For license terms, see the file COPYING in this distribution.
- */
-
- #include <stdio.h>
- #include <stdlib.h>
-
- long time_msf_to_frame (int m, int s, int f)
- {
- return (m * 60 + s) * 75 + f;
- }
-
- void msf_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 */
- }
-
- 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;
-
- msf_frame_to_msf(f, &minutes, &seconds, &frames);
- sprintf(msf, "%02d:%02d:%02d", minutes, seconds, frames);
-
- return msf;
- }
|