/// <summary>
/// Retrieve a tag with an arbitrary name.
/// Returns an empty tag if the value isn't found or if no Xiph tags are present.
/// </summary>
/// <param name="TagName">
/// A <see cref="System.String"/> containing the name of the tag to find
/// </param>
/// <returns>
/// An <see cref="OggTag"/> containing the returned tag
/// </returns>
public OggTag GetTag(string TagName)
{
if (TagName.Length <= 0)
{
return(OggUtilities.GetEmptyTag());
} // Save some processing time and just exit if we haven't been given a tag name
// Based on tasty examples @ "Accessing Hidden Gems": http://developer.novell.com/wiki/index.php/TagLib_Sharp:_Examples
TagLib.Ogg.XiphComment XC = (TagLib.Ogg.XiphComment)m_TagLibFile.GetTag(TagTypes.Xiph);
if (XC != null)
{
string[] TagValue = XC.GetField(TagName);
if (TagValue.Length == 0)
{
// Tag doesn't exist, return empty
return(OggUtilities.GetEmptyTag());
}
else
{
OggTag tmpTag;
tmpTag.Name = TagName;
tmpTag.IsArray = (TagValue.Length > 1);
tmpTag.IsEmpty = false;
tmpTag.Values = TagValue;
tmpTag.Value = TagValue[0];
return(tmpTag);
}
}
else
{
// No valid Xiph tags found
return(OggUtilities.GetEmptyTag());
}
}
public static void DumpXiphMetadata(File tagFile)
{
TagLib.Ogg.XiphComment tags = (TagLib.Ogg.XiphComment)tagFile.GetTag(TagTypes.Xiph);
foreach (string fieldName in tags.Distinct().OrderBy(t => t))
{
string[] fieldValue = tags.GetField(fieldName);
if (fieldValue.Length > 1)
{
Console.WriteLine("{0} ({1}):", fieldName, fieldValue.Length);
foreach (string fv in fieldValue)
{
WriteLineWithIndent(4, fv);
}
}
else if (fieldValue.Length == 1)
{
Console.WriteLine("{0}:", fieldName);
WriteLineWithIndent(4, fieldValue[0]);
}
else
{
Console.WriteLine("{0} (No Value)", fieldName);
}
}
}
/// <summary>
/// Retrieve an array of all tag values
/// Returns a zero-length array if no Xiph tags are found
/// </summary>
/// <returns>
/// An <see cref="OggTag[]"/> containing the returned values
/// </returns>
public OggTag[] GetTags()
{
TagLib.Ogg.XiphComment XC = (TagLib.Ogg.XiphComment)m_TagLibFile.GetTag(TagTypes.Xiph);
if (XC != null)
{
if (XC.FieldCount > 0)
{
OggTag[] tmpOggTag = new OggTag[XC.FieldCount];
int Index = 0;
foreach (string FieldName in XC)
{
string[] TagValue = XC.GetField(FieldName);
if (TagValue.Length == 0)
{
tmpOggTag[Index] = OggUtilities.GetEmptyTag(); // This should never happen, but I bet if I don't check it it will!
}
else
{
// Populate this tag
tmpOggTag[Index].Name = FieldName;
tmpOggTag[Index].IsArray = (TagValue.Length > 1);
tmpOggTag[Index].IsEmpty = false;
tmpOggTag[Index].Values = TagValue;
tmpOggTag[Index].Value = TagValue[0];
}
++Index; // Increment the index so we know which OggTag we're molesting
}
// Done! Return the heap of tags
return(tmpOggTag);
}
else
{
// Xiph tags contain no items
return(new OggTag[0]);
}
}
else
{
// No valid Xiph tags found
return(new OggTag[0]);
}
}
public static string[] GetMiscTag(TagLib.File file, string name)
{
//TagLib.Mpeg4.AppleTag apple = (TagLib.Mpeg4.AppleTag)file.GetTag(TagLib.TagTypes.Apple);
//TagLib.Id3v2.Tag id3v2 = (TagLib.Id3v2.Tag)file.GetTag(TagLib.TagTypes.Id3v2);
TagLib.Ogg.XiphComment xiph = (TagLib.Ogg.XiphComment)file.GetTag(TagLib.TagTypes.Xiph);
TagLib.Ape.Tag ape = (TagLib.Ape.Tag)file.GetTag(TagLib.TagTypes.Ape);
//if (apple != null)
//{
// string[] text = apple.GetText(name);
// if (text.Length != 0)
// return text;
//}
//if (id3v2 != null)
// foreach (TagLib.Id3v2.Frame f in id3v2.GetFrames())
// if (f is TagLib.Id3v2.TextInformationFrame && ((TagLib.Id3v2.TextInformationFrame)f).Text != null)
// return ((TagLib.Id3v2.TextInformationFrame)f).Text;
if (xiph != null)
{
string[] l = xiph.GetField(name);
if (l != null && l.Length != 0)
{
return(l);
}
}
if (ape != null)
{
TagLib.Ape.Item item = ape.GetItem(name);
if (item != null)
{
return(item.ToStringArray());
}
}
return(null);
}
