mirror of
https://github.com/jellyfin/jellyfin.git
synced 2024-11-17 19:08:53 -07:00
397 lines
17 KiB
C#
397 lines
17 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
using System.Text;
|
|
using System.Threading;
|
|
using MediaBrowser.Model.Extensions;
|
|
using MediaBrowser.Model.MediaInfo;
|
|
|
|
namespace MediaBrowser.MediaEncoding.Subtitles
|
|
{
|
|
/// <summary>
|
|
/// Credit to https://github.com/SubtitleEdit/subtitleedit/blob/a299dc4407a31796364cc6ad83f0d3786194ba22/src/Logic/SubtitleFormats/SubStationAlpha.cs
|
|
/// </summary>
|
|
public class SsaParser : ISubtitleParser
|
|
{
|
|
public SubtitleTrackInfo Parse(Stream stream, CancellationToken cancellationToken)
|
|
{
|
|
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 (line.Trim().ToLowerInvariant() == "[events]")
|
|
{
|
|
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:"))
|
|
{
|
|
if (line.Length > 10)
|
|
{
|
|
format = line.ToLowerInvariant().Substring(8).Split(',');
|
|
for (int i = 0; i < format.Length; i++)
|
|
{
|
|
if (format[i].Trim().ToLowerInvariant() == "layer")
|
|
indexLayer = i;
|
|
else if (format[i].Trim().ToLowerInvariant() == "start")
|
|
indexStart = i;
|
|
else if (format[i].Trim().ToLowerInvariant() == "end")
|
|
indexEnd = i;
|
|
else if (format[i].Trim().ToLowerInvariant() == "text")
|
|
indexText = i;
|
|
else if (format[i].Trim().ToLowerInvariant() == "effect")
|
|
indexEffect = i;
|
|
else if (format[i].Trim().ToLowerInvariant() == "style")
|
|
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:"))
|
|
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
|
|
{
|
|
var p = new SubtitleTrackEvent();
|
|
|
|
p.StartPositionTicks = GetTimeCodeFromString(start);
|
|
p.EndPositionTicks = GetTimeCodeFromString(end);
|
|
p.Text = GetFormattedText(text);
|
|
|
|
trackEvents.Add(p);
|
|
}
|
|
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]),
|
|
int.Parse(timeCode[1]),
|
|
int.Parse(timeCode[2]),
|
|
int.Parse(timeCode[3]) * 10).Ticks;
|
|
}
|
|
|
|
public static string GetFormattedText(string text)
|
|
{
|
|
text = text.Replace("\\n", ParserValues.NewLine, StringComparison.OrdinalIgnoreCase);
|
|
|
|
bool italic = false;
|
|
|
|
for (int i = 0; i < 10; i++) // just look ten times...
|
|
{
|
|
if (text.Contains(@"{\fn"))
|
|
{
|
|
int start = text.IndexOf(@"{\fn");
|
|
int end = text.IndexOf('}', start);
|
|
if (end > 0 && !text.Substring(start).StartsWith("{\\fn}"))
|
|
{
|
|
string fontName = text.Substring(start + 4, end - (start + 4));
|
|
string extraTags = string.Empty;
|
|
CheckAndAddSubTags(ref fontName, ref extraTags, out 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);
|
|
if (indexOfEndTag > 0)
|
|
text = text.Remove(indexOfEndTag, "{\\fn}".Length).Insert(indexOfEndTag, "</font>");
|
|
else
|
|
text += "</font>";
|
|
}
|
|
}
|
|
|
|
if (text.Contains(@"{\fs"))
|
|
{
|
|
int start = text.IndexOf(@"{\fs");
|
|
int end = text.IndexOf('}', start);
|
|
if (end > 0 && !text.Substring(start).StartsWith("{\\fs}"))
|
|
{
|
|
string fontSize = text.Substring(start + 4, end - (start + 4));
|
|
string extraTags = string.Empty;
|
|
CheckAndAddSubTags(ref fontSize, ref extraTags, out 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);
|
|
if (indexOfEndTag > 0)
|
|
text = text.Remove(indexOfEndTag, "{\\fs}".Length).Insert(indexOfEndTag, "</font>");
|
|
else
|
|
text += "</font>";
|
|
}
|
|
}
|
|
}
|
|
|
|
if (text.Contains(@"{\c"))
|
|
{
|
|
int start = text.IndexOf(@"{\c");
|
|
int end = text.IndexOf('}', start);
|
|
if (end > 0 && !text.Substring(start).StartsWith("{\\c}"))
|
|
{
|
|
string color = text.Substring(start + 4, end - (start + 4));
|
|
string extraTags = string.Empty;
|
|
CheckAndAddSubTags(ref color, ref extraTags, out italic);
|
|
|
|
color = color.Replace("&", string.Empty).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);
|
|
if (indexOfEndTag > 0)
|
|
text = text.Remove(indexOfEndTag, "{\\c}".Length).Insert(indexOfEndTag, "</font>");
|
|
else
|
|
text += "</font>";
|
|
}
|
|
}
|
|
|
|
if (text.Contains(@"{\1c")) // "1" specifices primary color
|
|
{
|
|
int start = text.IndexOf(@"{\1c");
|
|
int end = text.IndexOf('}', start);
|
|
if (end > 0 && !text.Substring(start).StartsWith("{\\1c}"))
|
|
{
|
|
string color = text.Substring(start + 5, end - (start + 5));
|
|
string extraTags = string.Empty;
|
|
CheckAndAddSubTags(ref color, ref extraTags, out italic);
|
|
|
|
color = color.Replace("&", string.Empty).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 + ">");
|
|
text += "</font>";
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
text = text.Replace(@"{\i1}", "<i>");
|
|
text = text.Replace(@"{\i0}", "</i>");
|
|
text = text.Replace(@"{\i}", "</i>");
|
|
if (CountTagInText(text, "<i>") > CountTagInText(text, "</i>"))
|
|
text += "</i>";
|
|
|
|
text = text.Replace(@"{\u1}", "<u>");
|
|
text = text.Replace(@"{\u0}", "</u>");
|
|
text = text.Replace(@"{\u}", "</u>");
|
|
if (CountTagInText(text, "<u>") > CountTagInText(text, "</u>"))
|
|
text += "</u>";
|
|
|
|
text = text.Replace(@"{\b1}", "<b>");
|
|
text = text.Replace(@"{\b0}", "</b>");
|
|
text = text.Replace(@"{\b}", "</b>");
|
|
if (CountTagInText(text, "<b>") > CountTagInText(text, "</b>"))
|
|
text += "</b>";
|
|
|
|
return text;
|
|
}
|
|
|
|
private static bool IsInteger(string s)
|
|
{
|
|
if (int.TryParse(s, out var i))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
private static int CountTagInText(string text, string tag)
|
|
{
|
|
int count = 0;
|
|
int index = text.IndexOf(tag);
|
|
while (index >= 0)
|
|
{
|
|
count++;
|
|
if (index == text.Length)
|
|
return count;
|
|
index = text.IndexOf(tag, index + 1);
|
|
}
|
|
return count;
|
|
}
|
|
|
|
private static void CheckAndAddSubTags(ref string tagName, ref string extraTags, out bool italic)
|
|
{
|
|
italic = false;
|
|
int indexOfSPlit = tagName.IndexOf(@"\");
|
|
if (indexOfSPlit > 0)
|
|
{
|
|
string rest = tagName.Substring(indexOfSPlit).TrimStart('\\');
|
|
tagName = tagName.Remove(indexOfSPlit);
|
|
|
|
for (int i = 0; i < 10; i++)
|
|
{
|
|
if (rest.StartsWith("fs") && rest.Length > 2)
|
|
{
|
|
indexOfSPlit = rest.IndexOf(@"\");
|
|
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") && rest.Length > 2)
|
|
{
|
|
indexOfSPlit = rest.IndexOf(@"\");
|
|
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") && rest.Length > 2)
|
|
{
|
|
indexOfSPlit = rest.IndexOf(@"\");
|
|
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).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") && rest.Length > 1)
|
|
{
|
|
indexOfSPlit = rest.IndexOf(@"\");
|
|
italic = true;
|
|
if (indexOfSPlit > 0)
|
|
{
|
|
rest = rest.Substring(indexOfSPlit).TrimStart('\\');
|
|
}
|
|
else
|
|
{
|
|
rest = string.Empty;
|
|
}
|
|
}
|
|
else if (rest.Length > 0 && rest.Contains("\\"))
|
|
{
|
|
indexOfSPlit = rest.IndexOf(@"\");
|
|
rest = rest.Substring(indexOfSPlit).TrimStart('\\');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|