mirror of
https://github.com/SubtitleEdit/subtitleedit.git
synced 2024-10-28 15:02:35 +01:00
310 lines
15 KiB
C#
310 lines
15 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Xml;
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namespace Nikse.SubtitleEdit.Core.SubtitleFormats
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{
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/// <summary>
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/// Nexflix version of timed text - time code is "00:00:04.000", tag <br /> is converted to <br/>
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/// See https://backlothelp.netflix.com/hc/en-us/articles/215758617-Timed-Text-Style-Guide-General-Requirements
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/// https://backlothelp.netflix.com/hc/en-us/articles/115001869828-Announcement-Additional-TTML-Schema-Inspections
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/// </summary>
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public class NetflixTimedText : TimedText10
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{
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public override string Extension => ".dfxp";
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public new const string NameOfFormat = "Netflix Timed Text";
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public override string Name => NameOfFormat;
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public override bool IsMine(List<string> lines, string fileName)
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{
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if (fileName != null && !(fileName.EndsWith(Extension, StringComparison.OrdinalIgnoreCase) || fileName.EndsWith(".xml", StringComparison.OrdinalIgnoreCase)))
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return false;
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var sb = new StringBuilder();
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lines.ForEach(line => sb.AppendLine(line));
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if (!sb.ToString().Contains(">Netflix Subtitle"))
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return false;
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return base.IsMine(lines, fileName);
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}
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public override string ToText(Subtitle subtitle, string title)
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{
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bool convertedFromSubStationAlpha = false;
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if (subtitle.Header != null)
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{
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XmlNode styleHead = null;
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try
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{
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var x = new XmlDocument();
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x.LoadXml(subtitle.Header);
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var xnsmgr = new XmlNamespaceManager(x.NameTable);
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xnsmgr.AddNamespace("ttml", "http://www.w3.org/ns/ttml");
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if (x.DocumentElement != null)
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styleHead = x.DocumentElement.SelectSingleNode("ttml:head", xnsmgr);
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}
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catch
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{
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styleHead = null;
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}
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if (styleHead == null && (subtitle.Header.Contains("[V4+ Styles]") || subtitle.Header.Contains("[V4 Styles]")))
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{
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var x = new XmlDocument();
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x.LoadXml(new ItunesTimedText().ToText(new Subtitle(), "tt")); // load default xml
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var xnsmgr = new XmlNamespaceManager(x.NameTable);
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xnsmgr.AddNamespace("ttml", "http://www.w3.org/ns/ttml");
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if (x.DocumentElement != null)
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{
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styleHead = x.DocumentElement.SelectSingleNode("ttml:head", xnsmgr);
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styleHead.SelectSingleNode("ttml:styling", xnsmgr).RemoveAll();
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foreach (string styleName in AdvancedSubStationAlpha.GetStylesFromHeader(subtitle.Header))
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{
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try
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{
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var ssaStyle = AdvancedSubStationAlpha.GetSsaStyle(styleName, subtitle.Header);
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string fontStyle = "normal";
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if (ssaStyle.Italic)
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fontStyle = "italic";
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string fontWeight = "normal";
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if (ssaStyle.Bold)
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fontWeight = "bold";
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AddStyleToXml(x, styleHead, xnsmgr, ssaStyle.Name, ssaStyle.FontName, fontWeight, fontStyle, Utilities.ColorToHex(ssaStyle.Primary), ssaStyle.FontSize.ToString());
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convertedFromSubStationAlpha = true;
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}
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catch
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{
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// ignored
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}
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}
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}
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subtitle.Header = x.OuterXml; // save new xml with styles in header
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}
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}
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var xml = new XmlDocument { XmlResolver = null };
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var nsmgr = new XmlNamespaceManager(xml.NameTable);
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nsmgr.AddNamespace("ttml", "http://www.w3.org/ns/ttml");
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nsmgr.AddNamespace("ttp", "http://www.w3.org/ns/10/ttml#parameter");
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nsmgr.AddNamespace("tts", "http://www.w3.org/ns/10/ttml#style");
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nsmgr.AddNamespace("ttm", "http://www.w3.org/ns/10/ttml#metadata");
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const string xmlStructure = @"<?xml version='1.0' encoding='utf-8'?>
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<tt xmlns='http://www.w3.org/ns/ttml' xmlns:ttm='http://www.w3.org/ns/ttml#metadata' xmlns:tts='http://www.w3.org/ns/ttml#styling' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xml:lang='en'>
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<head>
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<metadata>
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<ttm:title>Netflix Subtitle</ttm:title>
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</metadata>
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<styling>
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<style tts:fontStyle='normal' tts:fontWeight='normal' xml:id='s1' tts:color='white' tts:fontFamily='Arial' tts:fontSize='100%'></style>
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</styling>
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<layout>
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<region tts:extent='80% 40%' tts:origin='10% 10%' tts:displayAlign='before' tts:textAlign='center' xml:id='topCenter' />
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<region tts:extent='80% 40%' tts:origin='10% 50%' tts:displayAlign='after' tts:textAlign='center' xml:id='bottomCenter' />
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</layout>
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</head>
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<body>
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<div style='s1' xml:id='d1'></div>
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</body>
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</tt>";
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xml.LoadXml(xmlStructure);
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if (!string.IsNullOrWhiteSpace(title))
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{
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var headNode = xml.DocumentElement.SelectSingleNode("//ttml:head", nsmgr);
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var metadataNode = headNode?.SelectSingleNode("ttml:metadata", nsmgr);
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var titleNode = metadataNode?.FirstChild;
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if (titleNode != null)
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{
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titleNode.InnerText = "Netflix Subtitle for " + title;
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}
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}
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var div = xml.DocumentElement.SelectSingleNode("//ttml:body", nsmgr).SelectSingleNode("ttml:div", nsmgr);
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bool hasBottomCenterRegion = false;
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bool hasTopCenterRegion = false;
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foreach (XmlNode node in xml.DocumentElement.SelectNodes("//ttml:head/ttml:layout/ttml:region", nsmgr))
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{
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string id = null;
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if (node.Attributes["xml:id"] != null)
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id = node.Attributes["xml:id"].Value;
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else if (node.Attributes["id"] != null)
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id = node.Attributes["id"].Value;
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if (id != null && id == "bottomCenter")
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hasBottomCenterRegion = true;
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if (id != null && id == "topCenter")
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hasTopCenterRegion = true;
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}
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int no = 0;
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foreach (var p in subtitle.Paragraphs)
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{
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XmlNode paragraph = xml.CreateElement("p", "http://www.w3.org/ns/ttml");
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string text = p.Text;
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XmlAttribute pid = xml.CreateAttribute("xml:id");
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pid.InnerText = "p" + ++no;
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paragraph.Attributes.Append(pid);
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XmlAttribute start = xml.CreateAttribute("begin");
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start.InnerText = string.Format(CultureInfo.InvariantCulture, "{0:00}:{1:00}:{2:00}.{3:000}", p.StartTime.Hours, p.StartTime.Minutes, p.StartTime.Seconds, p.StartTime.Milliseconds);
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paragraph.Attributes.Append(start);
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XmlAttribute end = xml.CreateAttribute("end");
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end.InnerText = string.Format(CultureInfo.InvariantCulture, "{0:00}:{1:00}:{2:00}.{3:000}", p.EndTime.Hours, p.EndTime.Minutes, p.EndTime.Seconds, p.EndTime.Milliseconds);
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paragraph.Attributes.Append(end);
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XmlAttribute regionP = xml.CreateAttribute("region");
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if (text.StartsWith("{\\an7}", StringComparison.Ordinal) || text.StartsWith("{\\an8}", StringComparison.Ordinal) || text.StartsWith("{\\an9}", StringComparison.Ordinal))
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{
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if (hasTopCenterRegion)
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{
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regionP.InnerText = "topCenter";
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paragraph.Attributes.Append(regionP);
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}
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}
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else if (hasBottomCenterRegion)
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{
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regionP.InnerText = "bottomCenter";
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paragraph.Attributes.Append(regionP);
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}
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if (text.StartsWith("{\\an", StringComparison.Ordinal) && text.Length > 6 && text[5] == '}')
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text = text.Remove(0, 6);
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if (convertedFromSubStationAlpha)
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{
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if (string.IsNullOrEmpty(p.Style))
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{
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p.Style = p.Extra;
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}
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}
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bool first = true;
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bool italicOn = false;
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foreach (string line in text.SplitToLines())
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{
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if (!first)
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{
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XmlNode br = xml.CreateElement("br", "http://www.w3.org/ns/ttml");
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paragraph.AppendChild(br);
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}
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var styles = new Stack<XmlNode>();
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XmlNode currentStyle = xml.CreateTextNode(string.Empty);
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paragraph.AppendChild(currentStyle);
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int skipCount = 0;
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for (int i = 0; i < line.Length; i++)
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{
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if (skipCount > 0)
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{
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skipCount--;
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}
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else if (line.Substring(i).StartsWith("<i>", StringComparison.Ordinal))
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{
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styles.Push(currentStyle);
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currentStyle = xml.CreateNode(XmlNodeType.Element, "span", null);
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paragraph.AppendChild(currentStyle);
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XmlAttribute attr = xml.CreateAttribute("tts:fontStyle", "http://www.w3.org/ns/10/ttml#style");
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attr.InnerText = "italic";
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currentStyle.Attributes.Append(attr);
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skipCount = 2;
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italicOn = true;
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}
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else if (line.Substring(i).StartsWith("<b>", StringComparison.Ordinal))
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{
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currentStyle = xml.CreateNode(XmlNodeType.Element, "span", null);
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paragraph.AppendChild(currentStyle);
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XmlAttribute attr = xml.CreateAttribute("tts:fontWeight", "http://www.w3.org/ns/10/ttml#style");
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attr.InnerText = "bold";
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currentStyle.Attributes.Append(attr);
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skipCount = 2;
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}
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else if (line.Substring(i).StartsWith("<font ", StringComparison.Ordinal))
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{
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int endIndex = line.Substring(i + 1).IndexOf('>');
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if (endIndex > 0)
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{
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skipCount = endIndex + 1;
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string fontContent = line.Substring(i, skipCount);
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if (fontContent.Contains(" color="))
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{
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var arr = fontContent.Substring(fontContent.IndexOf(" color=", StringComparison.Ordinal) + 7).Trim().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
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if (arr.Length > 0)
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{
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string fontColor = arr[0].Trim('\'').Trim('"').Trim('\'');
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currentStyle = xml.CreateNode(XmlNodeType.Element, "span", null);
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paragraph.AppendChild(currentStyle);
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XmlAttribute attr = xml.CreateAttribute("tts:color", "http://www.w3.org/ns/10/ttml#style");
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attr.InnerText = fontColor;
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currentStyle.Attributes.Append(attr);
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}
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}
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}
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else
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{
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skipCount = line.Length;
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}
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}
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else if (line.Substring(i).StartsWith("</i>", StringComparison.Ordinal) || line.Substring(i).StartsWith("</b>", StringComparison.Ordinal) || line.Substring(i).StartsWith("</font>", StringComparison.Ordinal))
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{
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currentStyle = xml.CreateTextNode(string.Empty);
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if (styles.Count > 0)
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{
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currentStyle = styles.Pop().CloneNode(true);
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currentStyle.InnerText = string.Empty;
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}
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paragraph.AppendChild(currentStyle);
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if (line.Substring(i).StartsWith("</font>", StringComparison.Ordinal))
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skipCount = 6;
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else
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skipCount = 3;
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italicOn = false;
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}
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else
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{
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if (i == 0 && italicOn && !(line.Substring(i).StartsWith("<i>", StringComparison.Ordinal)))
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{
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styles.Push(currentStyle);
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currentStyle = xml.CreateNode(XmlNodeType.Element, "span", null);
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paragraph.AppendChild(currentStyle);
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XmlAttribute attr = xml.CreateAttribute("tts:fontStyle", "http://www.w3.org/ns/10/ttml#style");
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attr.InnerText = "italic";
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currentStyle.Attributes.Append(attr);
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}
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currentStyle.InnerText = currentStyle.InnerText + line[i];
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}
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}
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first = false;
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}
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div.AppendChild(paragraph);
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}
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string xmlString = ToUtf8XmlString(xml).Replace(" xmlns=\"\"", string.Empty).Replace(" xmlns:tts=\"http://www.w3.org/ns/10/ttml#style\">", ">").Replace("<br />", "<br/>");
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if (subtitle.Header == null)
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subtitle.Header = xmlString;
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return xmlString;
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}
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public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
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{
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base.LoadSubtitle(subtitle, lines, fileName);
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// Remove regions (except top center)
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subtitle.Paragraphs.ForEach(p => p.Text = Regex.Replace(p.Text, @"^({\\an[1-7,9]})", string.Empty));
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}
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public override bool HasStyleSupport
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{
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get
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{
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return false;
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}
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}
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}
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}
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