SubtitleEdit/libse/SubtitleFormats/UnknownSubtitle66.cs
2016-06-07 06:31:03 +02:00

136 lines
5.4 KiB
C#

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
using System.Text.RegularExpressions;
namespace Nikse.SubtitleEdit.Core.SubtitleFormats
{
public class UnknownSubtitle66 : SubtitleFormat
{
// 24 10:08:57:17 10:08:59:15 01:23
//The question is,
//
// 25 10:08:59:19 10:09:04:01 04:07
//is this upside-down vision
//permanent or only temporary?
private static readonly Regex RegexTimeCodes = new Regex(@"^\d+\s+\d\d:\d\d:\d\d\:\d\d\s+\d\d:\d\d:\d\d\:\d\d\s+\d\d:\d\d$", RegexOptions.Compiled);
public override string Extension
{
get { return ".txt"; }
}
public override string Name
{
get { return "Unknown 66"; }
}
public override bool IsTimeBased
{
get { return true; }
}
public override bool IsMine(List<string> lines, string fileName)
{
var subtitle = new Subtitle();
var sb = new StringBuilder();
foreach (string line in lines)
sb.AppendLine(line);
LoadSubtitle(subtitle, lines, fileName);
return subtitle.Paragraphs.Count > _errorCount;
}
public override string ToText(Subtitle subtitle, string title)
{
const string format = "{0} {1} {2} {3:00}:{4:00}";
var sb = new StringBuilder();
int count = 1;
foreach (Paragraph p in subtitle.Paragraphs)
{
// to avoid rounding errors in duration
var startFrame = MillisecondsToFramesMaxFrameRate(p.StartTime.Milliseconds);
var endFrame = MillisecondsToFramesMaxFrameRate(p.EndTime.Milliseconds);
var durationCalc = new Paragraph(
new TimeCode(p.StartTime.Hours, p.StartTime.Minutes, p.StartTime.Seconds, FramesToMillisecondsMax999(startFrame)),
new TimeCode(p.EndTime.Hours, p.EndTime.Minutes, p.EndTime.Seconds, FramesToMillisecondsMax999(endFrame)),
string.Empty);
sb.AppendLine(string.Format(format, count.ToString(CultureInfo.InvariantCulture).PadLeft(5), EncodeTimeCode(p.StartTime), EncodeTimeCode(p.EndTime), durationCalc.Duration.Seconds, MillisecondsToFramesMaxFrameRate(durationCalc.Duration.Milliseconds)));
sb.AppendLine(p.Text);
sb.AppendLine();
count++;
}
return sb.ToString().TrimEnd();
}
private static string EncodeTimeCode(TimeCode time)
{
return string.Format("{0:00}:{1:00}:{2:00}:{3:00}", time.Hours, time.Minutes, time.Seconds, MillisecondsToFramesMaxFrameRate(time.Milliseconds));
}
public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
{
_errorCount = 0;
bool expectStartTime = true;
var p = new Paragraph();
subtitle.Paragraphs.Clear();
foreach (string line in lines)
{
string s = line.Trim().Replace("*", string.Empty);
var match = RegexTimeCodes.Match(s);
if (match.Success)
{
string[] parts = s.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length == 4)
{
try
{
if (!string.IsNullOrEmpty(p.Text))
{
subtitle.Paragraphs.Add(p);
p = new Paragraph();
}
p.StartTime = DecodeTimeCodeFrames(parts[1], SplitCharColon);
p.EndTime = DecodeTimeCodeFrames(parts[2], SplitCharColon);
expectStartTime = false;
}
catch (Exception exception)
{
_errorCount++;
System.Diagnostics.Debug.WriteLine(exception.Message);
}
}
}
else if (string.IsNullOrWhiteSpace(line))
{
if (Math.Abs(p.StartTime.TotalMilliseconds) < 0.001 && Math.Abs(p.EndTime.TotalMilliseconds) < 0.001)
_errorCount++;
else
subtitle.Paragraphs.Add(p);
p = new Paragraph();
}
else if (!expectStartTime)
{
p.Text = (p.Text + Environment.NewLine + line).Trim();
if (p.Text.Length > 500)
{
_errorCount += 10;
return;
}
while (p.Text.Contains(Environment.NewLine + " "))
p.Text = p.Text.Replace(Environment.NewLine + " ", Environment.NewLine);
}
}
if (!string.IsNullOrEmpty(p.Text))
subtitle.Paragraphs.Add(p);
subtitle.RemoveEmptyLines();
subtitle.Renumber();
}
}
}