public static TimeSpan LTCTimecodeToTimeSpan(this string timeCode, RationalNumber rate)
{
if (!validateLTC.IsMatch(timeCode))
{
throw new FormatException("Bad LTC timecode format");
}
int frames = Int32.Parse(timeCode.Substring(0, 2));
int seconds = Int32.Parse(timeCode.Substring(2, 2));
int minutes = Int32.Parse(timeCode.Substring(4, 2));
int hours = Int32.Parse(timeCode.Substring(6));
int days = hours / 24;
hours = hours % 24;
if ((hours > 24) || (minutes >= 60) || (seconds >= 60) || (frames >= (int)(rate.Num / rate.Den)))
{
throw new FormatException("LTC Timecode out of range");
}
return(new TimeSpan(days, hours, minutes, seconds, frames * (int)rate.Den * 1000 / (int)rate.Num));
}
public static string ToSmpteTimecodeString(this TimeSpan t, RationalNumber rate)
{
if (rate.IsZero)
{
return(t.ToString());
}
var minus = t < TimeSpan.Zero;
var value = minus ? -t : t;
var days = value.Days;
var hours = value.Hours;
var minutes = value.Minutes;
var seconds = value.Seconds;
var frames = ((value.Ticks % TimeSpan.TicksPerSecond) * rate.Num + (rate.Den * TimeSpan.TicksPerSecond / 2)) / (rate.Den * TimeSpan.TicksPerSecond); // rounding
if (days > 0)
{
return($"{(minus ? "-" : "")}{days}:{hours:D2}:{minutes:D2}:{seconds:D2}:{frames:D2}");
}
else
{
return($"{(minus ? "-" : "")}{hours:D2}:{minutes:D2}:{seconds:D2}:{frames:D2}");
}
}
public static bool IsValidSMPTETimecode(this string timeCode, RationalNumber rate)
{
if (rate.IsZero)
{
TimeSpan t;
return(TimeSpan.TryParse(timeCode, out t));
}
else
{
string[] times = timeCode.Split(':');
if (times.Length < 4 || times.Length > 5)
{
return(false);
}
int index = -1;
int days = 0;
int hours, minutes, seconds, frames;
if (!((times.Length == 5 && int.TryParse(times[++index], out days) || times.Length == 4) &&
int.TryParse(times[++index], out hours) &&
int.TryParse(times[++index], out minutes) &&
int.TryParse(times[++index], out seconds) &&
int.TryParse(times[++index], out frames)))
{
return(false);
}
if ((days != 0 && hours < 0) ||
(Math.Abs(hours) >= 24) ||
minutes >= 60 || minutes < 0 || seconds >= 60 || seconds < 0 || frames >= (int)(rate.Num / rate.Den) || frames < 0)
{
return(false);
}
}
return(true);
}
public static VideoFormatDescription Match(Size imageSize, RationalNumber frameRate, RationalNumber sar, bool interlaced)
{
var result = Descriptions.Values.FirstOrDefault((v) => v.ImageSize.Equals(imageSize) &&
(v.FrameRate.Equals(frameRate) || frameRate.Equals(RationalNumber.Zero)) &&
(v.SAR.Equals(sar) || sar.Equals(RationalNumber.Zero)) &&
v.Interlaced == interlaced);
return(result != null ? result : new VideoFormatDescription(imageSize, frameRate, sar, interlaced));
}
private VideoFormatDescription(TVideoFormat format)
{
Format = format;
switch (format)
{
case TVideoFormat.Other:
case TVideoFormat.PAL_FHA:
Interlaced = true;
ImageSize = new Size(720, 576);
FrameRate = new RationalNumber(25, 1);
SAR = new RationalNumber(64, 45);
IsWideScreen = true;
break;
case TVideoFormat.PAL:
Interlaced = true;
ImageSize = new Size(720, 576);
FrameRate = new RationalNumber(25, 1);
SAR = new RationalNumber(16, 15);
IsWideScreen = false;
break;
case TVideoFormat.PAL_FHA_P:
Interlaced = false;
ImageSize = new Size(720, 576);
FrameRate = new RationalNumber(25, 1);
SAR = new RationalNumber(64, 45);
IsWideScreen = true;
break;
case TVideoFormat.PAL_P:
Interlaced = false;
ImageSize = new Size(720, 576);
FrameRate = new RationalNumber(25, 1);
SAR = new RationalNumber(16, 15);
IsWideScreen = false;
break;
case TVideoFormat.NTSC_FHA:
Interlaced = true;
ImageSize = new Size(720, 480);
FrameRate = new RationalNumber(30000, 1001);
SAR = new RationalNumber(32, 27);
IsWideScreen = true;
break;
case TVideoFormat.NTSC:
Interlaced = true;
ImageSize = new Size(720, 480);
FrameRate = new RationalNumber(30000, 1001);
SAR = new RationalNumber(8, 9);
IsWideScreen = false;
break;
case TVideoFormat.HD1080i5000:
Interlaced = true;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(25, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD1080i5994:
Interlaced = true;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(30000, 1001);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD1080i6000:
Interlaced = true;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(30, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD1080p2398:
Interlaced = false;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(2398, 100);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD1080p2400:
Interlaced = false;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(24, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD1080p2500:
Interlaced = false;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(25, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD1080p2997:
Interlaced = false;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(30000, 1001);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD1080p3000:
Interlaced = false;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(30, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD1080p5000:
Interlaced = false;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(50, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD1080p5994:
Interlaced = false;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(5994, 100);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD1080p6000:
Interlaced = false;
ImageSize = new Size(1920, 1080);
FrameRate = new RationalNumber(60, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD2160p2398:
Interlaced = false;
ImageSize = new Size(3840, 2160);
FrameRate = new RationalNumber(2398, 100);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD2160p2400:
Interlaced = false;
ImageSize = new Size(3840, 2160);
FrameRate = new RationalNumber(24, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD2160p2500:
Interlaced = false;
ImageSize = new Size(3840, 2160);
FrameRate = new RationalNumber(25, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD2160p2997:
Interlaced = false;
ImageSize = new Size(3840, 2160);
FrameRate = new RationalNumber(30000, 1001);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD2160p3000:
Interlaced = false;
ImageSize = new Size(3840, 2160);
FrameRate = new RationalNumber(30, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD2160p5000:
Interlaced = false;
ImageSize = new Size(3840, 2160);
FrameRate = new RationalNumber(50, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD2160p5994:
Interlaced = false;
ImageSize = new Size(3840, 2160);
FrameRate = new RationalNumber(5994, 100);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD2160p6000:
Interlaced = false;
ImageSize = new Size(3840, 2160);
FrameRate = new RationalNumber(60, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD720p2500:
Interlaced = false;
ImageSize = new Size(1440, 720);
FrameRate = new RationalNumber(25, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD720p5000:
Interlaced = false;
ImageSize = new Size(1440, 720);
FrameRate = new RationalNumber(50, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD720p5994:
Interlaced = false;
ImageSize = new Size(1440, 720);
FrameRate = new RationalNumber(5994, 100);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
case TVideoFormat.HD720p6000:
Interlaced = false;
ImageSize = new Size(1440, 720);
FrameRate = new RationalNumber(60, 1);
SAR = new RationalNumber(1, 1);
IsWideScreen = true;
break;
}
}
public static VideoFormatDescription Match(Size imageSize, RationalNumber frameRate, RationalNumber sar, bool interlaced)
{
var result = Descriptions.Values.FirstOrDefault(v => v.ImageSize.Equals(imageSize) &&
(v.FrameRate.Equals(frameRate) || frameRate.Equals(RationalNumber.Zero)) &&
(v.SAR.Equals(sar) || sar.Equals(RationalNumber.Zero)) &&
v.Interlaced == interlaced);
if (result != null)
{
return(result);
}
if (imageSize.Height == Descriptions[TVideoFormat.PAL].ImageSize.Height &&
frameRate == Descriptions[TVideoFormat.PAL].FrameRate &&
imageSize.Width == 768)
{
return(interlaced ? Descriptions[TVideoFormat.PAL] : Descriptions[TVideoFormat.PAL_P]);
}
if (imageSize.Height == Descriptions[TVideoFormat.PAL_FHA].ImageSize.Height &&
frameRate == Descriptions[TVideoFormat.PAL_FHA].FrameRate &&
(imageSize.Width == 1024 || imageSize.Width == 1050))
{
return(interlaced ? Descriptions[TVideoFormat.PAL_FHA] : Descriptions[TVideoFormat.PAL_FHA_P]);
}
return(new VideoFormatDescription(imageSize, frameRate, sar, interlaced));
}
