public static MatroskaTagInfo Fetch(string filename)
{
MatroskaTagInfo info = new MatroskaTagInfo();
try
{
if (!File.Exists(filename))
{
return null;
}
XmlDocument doc = new XmlDocument();
doc.Load(filename);
XmlNodeList simpleTags = doc.SelectNodes("/tags/tag/SimpleTag");
foreach (XmlNode simpleTag in simpleTags)
{
string tagName = simpleTag.ChildNodes[0].InnerText;
switch (tagName)
{
case "TITLE":
info.Title = simpleTag.ChildNodes[1].InnerText;
break;
case "COMMENT":
info.Description = simpleTag.ChildNodes[1].InnerText;
break;
case "GENRE":
info.Genre = simpleTag.ChildNodes[1].InnerText;
break;
case "CHANNEL_NAME":
info.ChannelName = simpleTag.ChildNodes[1].InnerText;
break;
case "EPISODE_NAME":
info.EpisodeName = simpleTag.ChildNodes[1].InnerText;
break;
case "START_TIME":
info.StartTime = new DateTime(long.Parse(simpleTag.ChildNodes[1].InnerText));
break;
case "END_TIME":
info.EndTime = new DateTime(long.Parse(simpleTag.ChildNodes[1].InnerText));
break;
}
}
}
catch (Exception) { } // loading the XML doc could fail
return info;
}
public static void Persist(string filename, MatroskaTagInfo taginfo)
{
try
{
if (!Directory.Exists(Path.GetDirectoryName(filename)))
{
Directory.CreateDirectory(Path.GetDirectoryName(filename));
}
XmlDocument doc = new XmlDocument();
XmlDeclaration xmldecl = doc.CreateXmlDeclaration("1.0", "UTF-8", null);
XmlNode tagsNode = doc.CreateElement("tags");
XmlNode tagNode = doc.CreateElement("tag");
tagNode.AppendChild(AddSimpleTag("TITLE", taginfo.Title, doc));
tagNode.AppendChild(AddSimpleTag("COMMENT", taginfo.Description, doc));
tagNode.AppendChild(AddSimpleTag("GENRE", taginfo.Genre, doc));
tagNode.AppendChild(AddSimpleTag("CHANNEL_NAME", taginfo.ChannelName, doc));
tagNode.AppendChild(AddSimpleTag("EPISODE_NAME", taginfo.EpisodeName, doc));
tagNode.AppendChild(AddSimpleTag("START_TIME", taginfo.StartTime.Ticks.ToString(), doc));
tagNode.AppendChild(AddSimpleTag("END_TIME", taginfo.EndTime.Ticks.ToString(), doc));
tagsNode.AppendChild(tagNode);
doc.AppendChild(tagsNode);
doc.InsertBefore(xmldecl, tagsNode);
doc.Save(filename);
}
catch (Exception) { }
}