SubtitleEdit/libse/SubtitleFormats/DvdSubtitle.cs
2016-02-08 21:11:03 +01:00

149 lines
5.0 KiB
C#

using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
namespace Nikse.SubtitleEdit.Core.SubtitleFormats
{
public class DvdSubtitle : SubtitleFormat
{
private static readonly Regex RegexTimeCodes = new Regex(@"^\{T\ \d+:\d+:\d+:\d+$", RegexOptions.Compiled);
public override string Extension
{
get { return ".sub"; }
}
public override string Name
{
get { return "DVDSubtitle"; }
}
public override bool IsTimeBased
{
get { return true; }
}
public override bool IsMine(List<string> lines, string fileName)
{
Subtitle subtitle = new Subtitle();
LoadSubtitle(subtitle, lines, fileName);
return subtitle.Paragraphs.Count > _errorCount;
}
public override string ToText(Subtitle subtitle, string title)
{
const string paragraphWriteFormat = "T {0}\r\n{1}\r\n";
const string timeFormat = "{0:00}:{1:00}:{2:00}:{3:00}";
const string header = @"{HEAD
DISCID=
DVDTITLE=
CODEPAGE=1250
FORMAT=ASCII
LANG=
TITLE=1
ORIGINAL=ORIGINAL
AUTHOR=
WEB=
INFO=
LICENSE=
}";
StringBuilder sb = new StringBuilder();
sb.AppendLine(header);
foreach (Paragraph p in subtitle.Paragraphs)
{
int milliseconds = p.StartTime.Milliseconds / 10;
string time = string.Format(timeFormat, p.StartTime.Hours, p.StartTime.Minutes, p.StartTime.Seconds, milliseconds);
sb.AppendLine("{" + string.Format(paragraphWriteFormat, time, p.Text) + "}");
milliseconds = p.EndTime.Milliseconds / 10;
time = string.Format(timeFormat, p.EndTime.Hours, p.EndTime.Minutes, p.EndTime.Seconds, milliseconds);
sb.AppendLine("{" + string.Format(paragraphWriteFormat, time, string.Empty) + "}");
}
return sb.ToString().Trim();
}
public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
{
//{T 00:03:14:27
//Some text
//}
_errorCount = 0;
bool textOn = false;
string text = string.Empty;
TimeCode start = new TimeCode(0);
TimeCode end = new TimeCode(0);
foreach (string line in lines)
{
if (textOn)
{
if (line.Trim() == "}")
{
Paragraph p = new Paragraph();
p.Text = text;
p.StartTime = new TimeCode(start.TotalMilliseconds);
p.EndTime = new TimeCode(end.TotalMilliseconds);
subtitle.Paragraphs.Add(p);
text = string.Empty;
start = new TimeCode(0);
end = new TimeCode(0);
textOn = false;
}
else
{
if (text.Length == 0)
text = line;
else
text += Environment.NewLine + line;
}
}
else
{
if (RegexTimeCodes.Match(line).Success)
{
try
{
textOn = true;
string[] arr = line.Substring(3).Trim().Split(':');
if (arr.Length == 4)
{
int hours = int.Parse(arr[0]);
int minutes = int.Parse(arr[1]);
int seconds = int.Parse(arr[2]);
int milliseconds = int.Parse(arr[3]);
if (arr[3].Length == 2)
milliseconds *= 10;
start = new TimeCode(hours, minutes, seconds, milliseconds);
}
}
catch
{
textOn = false;
_errorCount++;
}
}
}
}
int index = 1;
foreach (Paragraph p in subtitle.Paragraphs)
{
Paragraph next = subtitle.GetParagraphOrDefault(index);
if (next != null)
{
p.EndTime.TotalMilliseconds = next.StartTime.TotalMilliseconds - 1;
}
index++;
}
subtitle.RemoveEmptyLines();
subtitle.Renumber();
}
}
}