mirror of
https://github.com/SubtitleEdit/subtitleedit.git
synced 2024-11-22 11:12:36 +01:00
150 lines
6.7 KiB
C#
150 lines
6.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace Nikse.SubtitleEdit.Core.SubtitleFormats
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{
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public class Edl : SubtitleFormat
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{
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private static readonly Regex Regex = new Regex(@"^\d+\s+[A-Z]{2}\s+[A-Z]\s+[A-Z]\s+\d\d:\d\d:\d\d:\d\d\s+\d\d:\d\d:\d\d:\d\d\s+\d\d:\d\d:\d\d:\d\d\s+\d\d:\d\d:\d\d:\d\d$", RegexOptions.Compiled);
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private const string TextPrefix = "* FROM CLIP NAME: ";
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public override string Extension
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{
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get { return ".edl"; }
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}
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public override string Name
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{
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get { return "EDL"; }
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}
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public override bool IsTimeBased
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{
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get { return true; }
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}
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public override bool IsMine(List<string> lines, string fileName)
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{
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var subtitle = new Subtitle();
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LoadSubtitle(subtitle, lines, fileName);
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return subtitle.Paragraphs.Count > _errorCount;
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}
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public override string ToText(Subtitle subtitle, string title)
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{
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var sb = new StringBuilder();
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sb.AppendLine("TITLE: " + title);
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if (Configuration.Settings.General.CurrentFrameRate % 1.0 > 0.01)
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sb.AppendLine("FCM: NON-DROP FRAME");
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else
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sb.AppendLine("FCM: DROP FRAME");
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sb.AppendLine();
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const string writeFormat = "{0:000000} {1} {2} {3} {4} {5} {6} {7}";
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for (int index = 0; index < subtitle.Paragraphs.Count; index++)
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{
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int no = index + 1;
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var p = subtitle.Paragraphs[index];
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if (index == 0 && p.StartTime.TotalSeconds > 1)
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{
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var start = new TimeCode(p.StartTime.TotalMilliseconds - 1000.0);
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var end = new TimeCode(p.StartTime.TotalMilliseconds - 1);
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sb.AppendLine(string.Format(writeFormat, no, "BL", "V", "C", EncodeTimeCode(start), EncodeTimeCode(end), EncodeTimeCode(start), EncodeTimeCode(end)));
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sb.AppendLine();
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}
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var text = HtmlUtil.RemoveHtmlTags(p.Text, true);
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sb.AppendLine(string.Format(writeFormat, no, "AX", "V", "C", EncodeTimeCode(p.StartTime), EncodeTimeCode(p.EndTime), EncodeTimeCode(p.StartTime), EncodeTimeCode(p.EndTime)));
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sb.AppendLine(TextPrefix + text);
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sb.AppendLine();
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var next = subtitle.GetParagraphOrDefault(no);
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if (next != null && next.StartTime.TotalMilliseconds > p.EndTime.TotalMilliseconds + 100)
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{
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var start = new TimeCode(p.EndTime.TotalMilliseconds + 1);
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var end = new TimeCode(start.TotalMilliseconds + 1000);
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if (end.TotalMilliseconds >= next.StartTime.TotalMilliseconds)
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{
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end = new TimeCode(next.StartTime.TotalMilliseconds - 1);
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}
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sb.AppendLine(string.Format(writeFormat, no, "BL", "V", "C", EncodeTimeCode(start), EncodeTimeCode(end), EncodeTimeCode(start), EncodeTimeCode(end)));
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sb.AppendLine();
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}
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}
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return sb.ToString().Trim() + Environment.NewLine;
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}
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private static string EncodeTimeCode(TimeCode timeCode)
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{
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return string.Format("{0:00}:{1:00}:{2:00}:{3:00}", timeCode.Hours, timeCode.Minutes, timeCode.Seconds, MillisecondsToFramesMaxFrameRate(timeCode.Milliseconds));
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}
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public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
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{ //002 AX V C 01:00:01:15 01:00:04:18 00:00:01:15 00:00:04:18
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//000002 AX V C 01:00:04:00 01:00:05:00 00:00:02:05 00:00:03:05
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_errorCount = 0;
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Paragraph lastParagraph = null;
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int count = 0;
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var splitChar = new[] { ' ' };
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foreach (string line in lines)
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{
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bool isTimeCode = false;
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if (line.Length > 0)
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{
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bool success = false;
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if (line.Length > 65 && line.Length < 85 && line.IndexOf(':') > 20)
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{
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var match = Regex.Match(line);
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if (match.Success)
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{
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isTimeCode = true;
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if (lastParagraph != null && Math.Abs(lastParagraph.StartTime.TotalMilliseconds + 1) > 0.001)
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subtitle.Paragraphs.Add(lastParagraph);
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var arr = line.Split(splitChar, StringSplitOptions.RemoveEmptyEntries);
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try
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{
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if (arr.Length == 8 && arr[1] != "BL")
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{
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var start = DecodeTimeCodeFrames(arr[6], SplitCharColon);
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var end = DecodeTimeCodeFrames(arr[7], SplitCharColon);
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lastParagraph = new Paragraph(start, end, string.Empty);
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success = true;
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}
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else
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{
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lastParagraph = new Paragraph(string.Empty, -1, -1);
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}
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}
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catch
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{
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_errorCount++;
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}
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}
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}
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if (!isTimeCode && !string.IsNullOrWhiteSpace(line) && lastParagraph != null && Utilities.GetNumberOfLines(lastParagraph.Text) < 5)
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{
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lastParagraph.Text = (lastParagraph.Text + Environment.NewLine + line).Trim();
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success = true;
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}
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if (!success && count > 9)
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_errorCount++;
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}
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count++;
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}
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if (lastParagraph != null)
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{
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subtitle.Paragraphs.Add(lastParagraph);
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}
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foreach (var paragraph in subtitle.Paragraphs)
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{
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if (paragraph.Text.StartsWith(TextPrefix, StringComparison.Ordinal))
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{
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paragraph.Text = paragraph.Text.Remove(0, TextPrefix.Length).TrimStart();
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}
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}
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subtitle.Renumber();
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}
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}
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} |