public static bool OnFrameBoundary(double time, double frameRate, double epsilon)
{
TimeUtility.ValidateFrameRate(frameRate);
double num = TimeUtility.ToExactFrames(time, frameRate);
double num2 = Math.Round(num);
return(Math.Abs(num - num2) < epsilon);
}
public static double RoundToFrame(double time, double frameRate)
{
TimeUtility.ValidateFrameRate(frameRate);
double num = Math.Max((double)((int)Math.Floor(time * frameRate)) / frameRate, 0.0);
double num2 = Math.Max((double)((int)Math.Ceiling(time * frameRate)) / frameRate, 0.0);
return((Math.Abs(time - num) >= Math.Abs(time - num2)) ? num2 : num);
}
public static int ToFrames(double time, double frameRate)
{
TimeUtility.ValidateFrameRate(frameRate);
double num = TimeUtility.kTimeEpsilon * time;
int result;
if (time < 0.0)
{
result = (int)Math.Ceiling(time * frameRate + num);
}
else
{
result = (int)Math.Floor(time * frameRate + num);
}
return(result);
}
public static string TimeAsTimeCode(double timeValue, double frameRate, string format = "F2")
{
TimeUtility.ValidateFrameRate(frameRate);
int num = (int)Math.Abs(timeValue);
int num2 = num / 3600;
int num3 = num % 3600 / 60;
int num4 = num % 60;
string str = (timeValue >= 0.0) ? string.Empty : "-";
string str2;
if (num2 > 0)
{
str2 = string.Concat(new string[]
{
num2.ToString(),
":",
num3.ToString("D2"),
":",
num4.ToString("D2")
});
}
else
{
if (num3 > 0)
{
str2 = num3.ToString() + ":" + num4.ToString("D2");
}
else
{
str2 = num4.ToString();
}
}
int totalWidth = (int)Math.Floor(Math.Log10(frameRate) + 1.0);
string text = (TimeUtility.ToFrames(timeValue, frameRate) - TimeUtility.ToFrames((double)num, frameRate)).ToString().PadLeft(totalWidth, '0');
if (!TimeUtility.OnFrameBoundary(timeValue, frameRate))
{
string text2 = TimeUtility.ToExactFrames(timeValue, frameRate).ToString(format);
int num5 = text2.IndexOf('.');
if (num5 >= 0)
{
text = text + " [" + text2.Substring(num5) + "]";
}
}
return(str + str2 + ":" + text);
}
public static double FromFrames(double frames, double frameRate)
{
TimeUtility.ValidateFrameRate(frameRate);
return(frames / frameRate);
}
public static double ToExactFrames(double time, double frameRate)
{
TimeUtility.ValidateFrameRate(frameRate);
return(time * frameRate);
}