added some sanity checks

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3726 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-06-29 00:29:08 +00:00
parent 8d28117ff7
commit 90f98241f4
1 changed files with 4 additions and 0 deletions
@@ -164,12 +164,16 @@ CopySamples(float *_dst, int32 _dst_sample_offset,
 int64
 frames_for_duration(double framerate, bigtime_t duration)
 {
+	if (duration <= 0 || framerate <= 0.0)
+		return 0;
 	return (int64) ceil(framerate * double(duration) / 1000000.0);
 }

 bigtime_t
 duration_for_frames(double framerate, int64 frames)
 {
+	if (frames <= 0 || framerate <= 0.0)
+		return 0;
 	return (bigtime_t)((1000000.0 * frames) / framerate);
 }