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

165 lines
6.6 KiB
C#

using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
namespace Nikse.SubtitleEdit.Core.SubtitleFormats
{
public class NciTimedRollUpCaptions : SubtitleFormat
{
private static readonly Regex RegexTimeCodes = new Regex(@"^\d\d:\d\d:\d\d:\d\d$", RegexOptions.Compiled);
private const int MaxDurationMs = 12000;
private enum ExpectingLine
{
TimeCodes,
Text
}
public override string Extension
{
get { return ".flc"; }
}
public override string Name
{
get { return "NCI Timed Roll Up Captions"; }
}
public override bool IsTimeBased
{
get { return true; }
}
public override bool IsMine(List<string> lines, string fileName)
{
if (!string.IsNullOrWhiteSpace(fileName) && !fileName.EndsWith(".flc", StringComparison.OrdinalIgnoreCase))
{
return false;
}
var subtitle = new Subtitle();
LoadSubtitle(subtitle, lines, fileName);
return subtitle.Paragraphs.Count > _errorCount;
}
public override string ToText(Subtitle subtitle, string title)
{
var sb = new StringBuilder();
for (int index = 0; index < subtitle.Paragraphs.Count; index++)
{
Paragraph p = subtitle.Paragraphs[index];
string text = HtmlUtil.RemoveHtmlTags(p.Text, true);
if (text.Trim().Length == 0)
{
text = "\u0014\u002C";
}
else
{
text = text.Replace(Environment.NewLine, "\u0011P");
text = text.Replace("♪", "\u00117");
text = text.Replace("'", "'\u0012\u0029");
text = "\u0014" + "\u0025" + "\u0014" + "\u002d" + text;
}
sb.AppendLine(p.StartTime.ToHHMMSSFF() + "\r\n" + text);
Paragraph next = subtitle.GetParagraphOrDefault(index + 1);
if (next == null || next.StartTime.TotalMilliseconds > p.StartTime.TotalMilliseconds + MaxDurationMs)
{
sb.AppendLine(p.EndTime.ToHHMMSSFF() + "\r\n\u0014\u002C");
}
}
return sb.ToString().Trim();
}
public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
{
var paragraph = new Paragraph();
var expecting = ExpectingLine.TimeCodes;
_errorCount = 0;
subtitle.Paragraphs.Clear();
foreach (string line in lines)
{
if (RegexTimeCodes.IsMatch(line))
{
string[] parts = line.Split(':');
if (parts.Length == 4)
{
try
{
paragraph = new Paragraph();
int startHours = int.Parse(parts[0]);
int startMinutes = int.Parse(parts[1]);
int startSeconds = int.Parse(parts[2]);
int startFrames = int.Parse(parts[3]);
paragraph.StartTime = new TimeCode(startHours, startMinutes, startSeconds, FramesToMillisecondsMax999(startFrames));
expecting = ExpectingLine.Text;
}
catch
{
expecting = ExpectingLine.TimeCodes;
}
}
}
else
{
if (expecting == ExpectingLine.Text || !string.IsNullOrEmpty(paragraph.Text))
{
if (line.Length > 0)
{
string text = line.Trim();
paragraph.Text = (paragraph.Text + Environment.NewLine + text).Trim();
if (!subtitle.Paragraphs.Contains(paragraph))
subtitle.Paragraphs.Add(paragraph);
expecting = ExpectingLine.TimeCodes;
}
}
}
}
for (int index = 0; index < subtitle.Paragraphs.Count; index++)
{
Paragraph p = subtitle.Paragraphs[index];
p.Text = FixText(p.Text);
Paragraph next = subtitle.GetParagraphOrDefault(index + 1);
if (next != null)
{
if (next.StartTime.TotalMilliseconds - p.StartTime.TotalMilliseconds <= MaxDurationMs)
p.EndTime.TotalMilliseconds = next.StartTime.TotalMilliseconds - Configuration.Settings.General.MinimumMillisecondsBetweenLines;
else
p.EndTime.TotalMilliseconds = p.StartTime.TotalMilliseconds + Utilities.GetOptimalDisplayMilliseconds(p.Text);
}
}
subtitle.RemoveEmptyLines();
subtitle.Renumber();
}
private static string FixText(string text)
{
text = text.Replace("\u0011P", Environment.NewLine);
text = text.Replace("\u00117", "♪");
text = text.Replace("\u0012\u0029", string.Empty);
text = text.Replace("\u0014\u0020", string.Empty);
text = text.Replace("\u0014\u0021", string.Empty);
text = text.Replace("\u0014\u0022", string.Empty);
text = text.Replace("\u0014\u0023", string.Empty);
text = text.Replace("\u0014\u0024", string.Empty);
text = text.Replace("\u0014\u0025", string.Empty);
text = text.Replace("\u0014\u0026", string.Empty);
text = text.Replace("\u0014\u0027", string.Empty);
text = text.Replace("\u0014\u0028", string.Empty);
text = text.Replace("\u0014\u0029", string.Empty);
text = text.Replace("\u0014\u002a", string.Empty);
text = text.Replace("\u0014\u002b", string.Empty);
text = text.Replace("\u0014\u002c", string.Empty);
text = text.Replace("\u0014\u002d", string.Empty);
text = text.Replace("\u0014\u002e", string.Empty);
text = text.Replace("\u0014\u002f", string.Empty);
return text.Trim();
}
}
}