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path: root/MediaBrowser.MediaEncoding/Subtitles/SsaParser.cs
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-rw-r--r--MediaBrowser.MediaEncoding/Subtitles/SsaParser.cs478
1 files changed, 11 insertions, 467 deletions
diff --git a/MediaBrowser.MediaEncoding/Subtitles/SsaParser.cs b/MediaBrowser.MediaEncoding/Subtitles/SsaParser.cs
index bc84c5074..36dc2e01f 100644
--- a/MediaBrowser.MediaEncoding/Subtitles/SsaParser.cs
+++ b/MediaBrowser.MediaEncoding/Subtitles/SsaParser.cs
@@ -1,477 +1,21 @@
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.IO;
-using System.Text;
-using System.Threading;
-using MediaBrowser.Model.MediaInfo;
+#nullable enable
+
+using Microsoft.Extensions.Logging;
+using Nikse.SubtitleEdit.Core.SubtitleFormats;
namespace MediaBrowser.MediaEncoding.Subtitles
{
/// <summary>
- /// <see href="https://github.com/SubtitleEdit/subtitleedit/blob/a299dc4407a31796364cc6ad83f0d3786194ba22/src/Logic/SubtitleFormats/SubStationAlpha.cs">Credit</see>.
+ /// SubStation Alpha subtitle parser.
/// </summary>
- public class SsaParser : ISubtitleParser
+ public class SsaParser : SubtitleEditParser<SubStationAlpha>
{
- /// <inheritdoc />
- public SubtitleTrackInfo Parse(Stream stream, CancellationToken cancellationToken)
+ /// <summary>
+ /// Initializes a new instance of the <see cref="SsaParser"/> class.
+ /// </summary>
+ /// <param name="logger">The logger.</param>
+ public SsaParser(ILogger logger) : base(logger)
{
- var trackInfo = new SubtitleTrackInfo();
- var trackEvents = new List<SubtitleTrackEvent>();
-
- using (var reader = new StreamReader(stream))
- {
- bool eventsStarted = false;
-
- string[] format = "Marked, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text".Split(',');
- int indexLayer = 0;
- int indexStart = 1;
- int indexEnd = 2;
- int indexStyle = 3;
- int indexName = 4;
- int indexEffect = 8;
- int indexText = 9;
- int lineNumber = 0;
-
- var header = new StringBuilder();
-
- string line;
-
- while ((line = reader.ReadLine()) != null)
- {
- cancellationToken.ThrowIfCancellationRequested();
-
- lineNumber++;
- if (!eventsStarted)
- {
- header.AppendLine(line);
- }
-
- if (string.Equals(line.Trim(), "[events]", StringComparison.OrdinalIgnoreCase))
- {
- eventsStarted = true;
- }
- else if (!string.IsNullOrEmpty(line) && line.Trim().StartsWith(';'))
- {
- // skip comment lines
- }
- else if (eventsStarted && line.Trim().Length > 0)
- {
- string s = line.Trim().ToLowerInvariant();
- if (s.StartsWith("format:", StringComparison.Ordinal))
- {
- if (line.Length > 10)
- {
- format = line.ToLowerInvariant().Substring(8).Split(',');
- for (int i = 0; i < format.Length; i++)
- {
- if (string.Equals(format[i].Trim(), "layer", StringComparison.OrdinalIgnoreCase))
- {
- indexLayer = i;
- }
- else if (string.Equals(format[i].Trim(), "start", StringComparison.OrdinalIgnoreCase))
- {
- indexStart = i;
- }
- else if (string.Equals(format[i].Trim(), "end", StringComparison.OrdinalIgnoreCase))
- {
- indexEnd = i;
- }
- else if (string.Equals(format[i].Trim(), "text", StringComparison.OrdinalIgnoreCase))
- {
- indexText = i;
- }
- else if (string.Equals(format[i].Trim(), "effect", StringComparison.OrdinalIgnoreCase))
- {
- indexEffect = i;
- }
- else if (string.Equals(format[i].Trim(), "style", StringComparison.OrdinalIgnoreCase))
- {
- indexStyle = i;
- }
- }
- }
- }
- else if (!string.IsNullOrEmpty(s))
- {
- string text = string.Empty;
- string start = string.Empty;
- string end = string.Empty;
- string style = string.Empty;
- string layer = string.Empty;
- string effect = string.Empty;
- string name = string.Empty;
-
- string[] splittedLine;
-
- if (s.StartsWith("dialogue:", StringComparison.Ordinal))
- {
- splittedLine = line.Substring(10).Split(',');
- }
- else
- {
- splittedLine = line.Split(',');
- }
-
- for (int i = 0; i < splittedLine.Length; i++)
- {
- if (i == indexStart)
- {
- start = splittedLine[i].Trim();
- }
- else if (i == indexEnd)
- {
- end = splittedLine[i].Trim();
- }
- else if (i == indexLayer)
- {
- layer = splittedLine[i];
- }
- else if (i == indexEffect)
- {
- effect = splittedLine[i];
- }
- else if (i == indexText)
- {
- text = splittedLine[i];
- }
- else if (i == indexStyle)
- {
- style = splittedLine[i];
- }
- else if (i == indexName)
- {
- name = splittedLine[i];
- }
- else if (i > indexText)
- {
- text += "," + splittedLine[i];
- }
- }
-
- try
- {
- trackEvents.Add(
- new SubtitleTrackEvent
- {
- StartPositionTicks = GetTimeCodeFromString(start),
- EndPositionTicks = GetTimeCodeFromString(end),
- Text = GetFormattedText(text)
- });
- }
- catch
- {
- }
- }
- }
- }
-
- // if (header.Length > 0)
- // subtitle.Header = header.ToString();
-
- // subtitle.Renumber(1);
- }
-
- trackInfo.TrackEvents = trackEvents.ToArray();
- return trackInfo;
- }
-
- private static long GetTimeCodeFromString(string time)
- {
- // h:mm:ss.cc
- string[] timeCode = time.Split(':', '.');
- return new TimeSpan(
- 0,
- int.Parse(timeCode[0], CultureInfo.InvariantCulture),
- int.Parse(timeCode[1], CultureInfo.InvariantCulture),
- int.Parse(timeCode[2], CultureInfo.InvariantCulture),
- int.Parse(timeCode[3], CultureInfo.InvariantCulture) * 10).Ticks;
- }
-
- private static string GetFormattedText(string text)
- {
- text = text.Replace("\\n", ParserValues.NewLine, StringComparison.OrdinalIgnoreCase);
-
- for (int i = 0; i < 10; i++) // just look ten times...
- {
- if (text.Contains(@"{\fn", StringComparison.Ordinal))
- {
- int start = text.IndexOf(@"{\fn", StringComparison.Ordinal);
- int end = text.IndexOf('}', start);
- if (end > 0 && !text.Substring(start).StartsWith("{\\fn}", StringComparison.Ordinal))
- {
- string fontName = text.Substring(start + 4, end - (start + 4));
- string extraTags = string.Empty;
- CheckAndAddSubTags(ref fontName, ref extraTags, out bool italic);
- text = text.Remove(start, end - start + 1);
- if (italic)
- {
- text = text.Insert(start, "<font face=\"" + fontName + "\"" + extraTags + "><i>");
- }
- else
- {
- text = text.Insert(start, "<font face=\"" + fontName + "\"" + extraTags + ">");
- }
-
- int indexOfEndTag = text.IndexOf("{\\fn}", start, StringComparison.Ordinal);
- if (indexOfEndTag > 0)
- {
- text = text.Remove(indexOfEndTag, "{\\fn}".Length).Insert(indexOfEndTag, "</font>");
- }
- else
- {
- text += "</font>";
- }
- }
- }
-
- if (text.Contains(@"{\fs", StringComparison.Ordinal))
- {
- int start = text.IndexOf(@"{\fs", StringComparison.Ordinal);
- int end = text.IndexOf('}', start);
- if (end > 0 && !text.Substring(start).StartsWith("{\\fs}", StringComparison.Ordinal))
- {
- string fontSize = text.Substring(start + 4, end - (start + 4));
- string extraTags = string.Empty;
- CheckAndAddSubTags(ref fontSize, ref extraTags, out bool italic);
- if (IsInteger(fontSize))
- {
- text = text.Remove(start, end - start + 1);
- if (italic)
- {
- text = text.Insert(start, "<font size=\"" + fontSize + "\"" + extraTags + "><i>");
- }
- else
- {
- text = text.Insert(start, "<font size=\"" + fontSize + "\"" + extraTags + ">");
- }
-
- int indexOfEndTag = text.IndexOf("{\\fs}", start, StringComparison.Ordinal);
- if (indexOfEndTag > 0)
- {
- text = text.Remove(indexOfEndTag, "{\\fs}".Length).Insert(indexOfEndTag, "</font>");
- }
- else
- {
- text += "</font>";
- }
- }
- }
- }
-
- if (text.Contains(@"{\c", StringComparison.Ordinal))
- {
- int start = text.IndexOf(@"{\c", StringComparison.Ordinal);
- int end = text.IndexOf('}', start);
- if (end > 0 && !text.Substring(start).StartsWith("{\\c}", StringComparison.Ordinal))
- {
- string color = text.Substring(start + 4, end - (start + 4));
- string extraTags = string.Empty;
- CheckAndAddSubTags(ref color, ref extraTags, out bool italic);
-
- color = color.Replace("&", string.Empty, StringComparison.Ordinal).TrimStart('H');
- color = color.PadLeft(6, '0');
-
- // switch to rrggbb from bbggrr
- color = "#" + color.Remove(color.Length - 6) + color.Substring(color.Length - 2, 2) + color.Substring(color.Length - 4, 2) + color.Substring(color.Length - 6, 2);
- color = color.ToLowerInvariant();
-
- text = text.Remove(start, end - start + 1);
- if (italic)
- {
- text = text.Insert(start, "<font color=\"" + color + "\"" + extraTags + "><i>");
- }
- else
- {
- text = text.Insert(start, "<font color=\"" + color + "\"" + extraTags + ">");
- }
-
- int indexOfEndTag = text.IndexOf("{\\c}", start, StringComparison.Ordinal);
- if (indexOfEndTag > 0)
- {
- text = text.Remove(indexOfEndTag, "{\\c}".Length).Insert(indexOfEndTag, "</font>");
- }
- else
- {
- text += "</font>";
- }
- }
- }
-
- if (text.Contains(@"{\1c", StringComparison.Ordinal)) // "1" specifices primary color
- {
- int start = text.IndexOf(@"{\1c", StringComparison.Ordinal);
- int end = text.IndexOf('}', start);
- if (end > 0 && !text.Substring(start).StartsWith("{\\1c}", StringComparison.Ordinal))
- {
- string color = text.Substring(start + 5, end - (start + 5));
- string extraTags = string.Empty;
- CheckAndAddSubTags(ref color, ref extraTags, out bool italic);
-
- color = color.Replace("&", string.Empty, StringComparison.Ordinal).TrimStart('H');
- color = color.PadLeft(6, '0');
-
- // switch to rrggbb from bbggrr
- color = "#" + color.Remove(color.Length - 6) + color.Substring(color.Length - 2, 2) + color.Substring(color.Length - 4, 2) + color.Substring(color.Length - 6, 2);
- color = color.ToLowerInvariant();
-
- text = text.Remove(start, end - start + 1);
- if (italic)
- {
- text = text.Insert(start, "<font color=\"" + color + "\"" + extraTags + "><i>");
- }
- else
- {
- text = text.Insert(start, "<font color=\"" + color + "\"" + extraTags + ">");
- }
-
- int indexOfEndTag = text.IndexOf("{\\1c}", start, StringComparison.Ordinal);
- if (indexOfEndTag > 0)
- {
- text = text.Remove(indexOfEndTag, "{\\1c}".Length).Insert(indexOfEndTag, "</font>");
- }
- else
- {
- text += "</font>";
- }
- }
- }
- }
-
- text = text.Replace(@"{\i1}", "<i>", StringComparison.Ordinal);
- text = text.Replace(@"{\i0}", "</i>", StringComparison.Ordinal);
- text = text.Replace(@"{\i}", "</i>", StringComparison.Ordinal);
- if (CountTagInText(text, "<i>") > CountTagInText(text, "</i>"))
- {
- text += "</i>";
- }
-
- text = text.Replace(@"{\u1}", "<u>", StringComparison.Ordinal);
- text = text.Replace(@"{\u0}", "</u>", StringComparison.Ordinal);
- text = text.Replace(@"{\u}", "</u>", StringComparison.Ordinal);
- if (CountTagInText(text, "<u>") > CountTagInText(text, "</u>"))
- {
- text += "</u>";
- }
-
- text = text.Replace(@"{\b1}", "<b>", StringComparison.Ordinal);
- text = text.Replace(@"{\b0}", "</b>", StringComparison.Ordinal);
- text = text.Replace(@"{\b}", "</b>", StringComparison.Ordinal);
- if (CountTagInText(text, "<b>") > CountTagInText(text, "</b>"))
- {
- text += "</b>";
- }
-
- return text;
- }
-
- private static bool IsInteger(string s)
- => int.TryParse(s, out _);
-
- private static int CountTagInText(string text, string tag)
- {
- int count = 0;
- int index = text.IndexOf(tag, StringComparison.Ordinal);
- while (index >= 0)
- {
- count++;
- if (index == text.Length)
- {
- return count;
- }
-
- index = text.IndexOf(tag, index + 1, StringComparison.Ordinal);
- }
-
- return count;
- }
-
- private static void CheckAndAddSubTags(ref string tagName, ref string extraTags, out bool italic)
- {
- italic = false;
- int indexOfSPlit = tagName.IndexOf('\\', StringComparison.Ordinal);
- if (indexOfSPlit > 0)
- {
- string rest = tagName.Substring(indexOfSPlit).TrimStart('\\');
- tagName = tagName.Remove(indexOfSPlit);
-
- for (int i = 0; i < 10; i++)
- {
- if (rest.StartsWith("fs", StringComparison.Ordinal) && rest.Length > 2)
- {
- indexOfSPlit = rest.IndexOf('\\', StringComparison.Ordinal);
- string fontSize = rest;
- if (indexOfSPlit > 0)
- {
- fontSize = rest.Substring(0, indexOfSPlit);
- rest = rest.Substring(indexOfSPlit).TrimStart('\\');
- }
- else
- {
- rest = string.Empty;
- }
-
- extraTags += " size=\"" + fontSize.Substring(2) + "\"";
- }
- else if (rest.StartsWith("fn", StringComparison.Ordinal) && rest.Length > 2)
- {
- indexOfSPlit = rest.IndexOf('\\', StringComparison.Ordinal);
- string fontName = rest;
- if (indexOfSPlit > 0)
- {
- fontName = rest.Substring(0, indexOfSPlit);
- rest = rest.Substring(indexOfSPlit).TrimStart('\\');
- }
- else
- {
- rest = string.Empty;
- }
-
- extraTags += " face=\"" + fontName.Substring(2) + "\"";
- }
- else if (rest.StartsWith("c", StringComparison.Ordinal) && rest.Length > 2)
- {
- indexOfSPlit = rest.IndexOf('\\', StringComparison.Ordinal);
- string fontColor = rest;
- if (indexOfSPlit > 0)
- {
- fontColor = rest.Substring(0, indexOfSPlit);
- rest = rest.Substring(indexOfSPlit).TrimStart('\\');
- }
- else
- {
- rest = string.Empty;
- }
-
- string color = fontColor.Substring(2);
- color = color.Replace("&", string.Empty, StringComparison.Ordinal).TrimStart('H');
- color = color.PadLeft(6, '0');
- // switch to rrggbb from bbggrr
- color = "#" + color.Remove(color.Length - 6) + color.Substring(color.Length - 2, 2) + color.Substring(color.Length - 4, 2) + color.Substring(color.Length - 6, 2);
- color = color.ToLowerInvariant();
-
- extraTags += " color=\"" + color + "\"";
- }
- else if (rest.StartsWith("i1", StringComparison.Ordinal) && rest.Length > 1)
- {
- indexOfSPlit = rest.IndexOf('\\', StringComparison.Ordinal);
- italic = true;
- if (indexOfSPlit > 0)
- {
- rest = rest.Substring(indexOfSPlit).TrimStart('\\');
- }
- else
- {
- rest = string.Empty;
- }
- }
- else if (rest.Length > 0 && rest.Contains('\\', StringComparison.Ordinal))
- {
- indexOfSPlit = rest.IndexOf('\\', StringComparison.Ordinal);
- rest = rest.Substring(indexOfSPlit).TrimStart('\\');
- }
- }
- }
}
}
}
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-07 18:48:38 +0000