imported sources

lib/time.c

@@ -0,0 +1,43 @@
+/*
+ * time.c -- time functions
+ *
+ * Copyright (C) 2004 Svend Sorensen <sorensen@freeshell.org>
+ * 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;
+}