/// <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
XiphComment XC = (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());
}
}
/// <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()
{
XiphComment XC = (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]);
}
}
/// <summary>
/// Read the Tags from the File
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public static TrackData Create(string fileName)
{
TrackData track = new TrackData();
TagLib.File file = null;
bool error = false;
try
{
TagLib.ByteVector.UseBrokenLatin1Behavior = true;
file = TagLib.File.Create(fileName);
}
catch (CorruptFileException)
{
log.Warn("File Read: Ignoring track {0} - Corrupt File!", fileName);
error = true;
}
catch (UnsupportedFormatException)
{
log.Warn("File Read: Ignoring track {0} - Unsupported format!", fileName);
error = true;
}
catch (FileNotFoundException)
{
log.Warn("File Read: Ignoring track {0} - Physical file no longer existing!", fileName);
error = true;
}
catch (Exception ex)
{
log.Error("File Read: Error processing file: {0} {1}", fileName, ex.Message);
error = true;
}
if (error)
{
return(null);
}
TagLib.Id3v2.Tag id3v2tag = null;
try
{
if (file.MimeType.Substring(file.MimeType.IndexOf("/") + 1) == "mp3")
{
id3v2tag = file.GetTag(TagTypes.Id3v2, false) as TagLib.Id3v2.Tag;
}
}
catch (Exception ex)
{
log.Error("File Read: Error retrieving id3tag: {0} {1}", fileName, ex.Message);
return(null);
}
#region Set Common Values
FileInfo fi = new FileInfo(fileName);
try
{
track.Id = Guid.NewGuid();
track.FullFileName = fileName;
track.FileName = Path.GetFileName(fileName);
track.Readonly = fi.IsReadOnly;
track.TagType = file.MimeType.Substring(file.MimeType.IndexOf("/") + 1);
}
catch (Exception ex)
{
log.Error("File Read: Error setting Common tags: {0} {1}", fileName, ex.Message);
return(null);
}
#endregion
#region Set Tags
try
{
// Artist
track.Artist = String.Join(";", file.Tag.Performers);
if (track.Artist.Contains("AC;DC"))
{
track.Artist = track.Artist.Replace("AC;DC", "AC/DC");
}
track.ArtistSortName = String.Join(";", file.Tag.PerformersSort);
if (track.ArtistSortName.Contains("AC;DC"))
{
track.ArtistSortName = track.ArtistSortName.Replace("AC;DC", "AC/DC");
}
track.AlbumArtist = String.Join(";", file.Tag.AlbumArtists);
if (track.AlbumArtist.Contains("AC;DC"))
{
track.AlbumArtist = track.AlbumArtist.Replace("AC;DC", "AC/DC");
}
track.AlbumArtistSortName = String.Join(";", file.Tag.AlbumArtistsSort);
if (track.AlbumArtistSortName.Contains("AC;DC"))
{
track.AlbumArtistSortName = track.AlbumArtistSortName.Replace("AC;DC", "AC/DC");
}
track.Album = file.Tag.Album ?? "";
track.AlbumSortName = file.Tag.AlbumSort ?? "";
track.BPM = (int)file.Tag.BeatsPerMinute;
track.Compilation = id3v2tag == null ? false : id3v2tag.IsCompilation;
track.Composer = string.Join(";", file.Tag.Composers);
track.Conductor = file.Tag.Conductor ?? "";
track.Copyright = file.Tag.Copyright ?? "";
track.DiscNumber = file.Tag.Disc;
track.DiscCount = file.Tag.DiscCount;
track.Genre = string.Join(";", file.Tag.Genres);
track.Grouping = file.Tag.Grouping ?? "";
track.Title = file.Tag.Title ?? "";
track.TitleSortName = file.Tag.TitleSort ?? "";
track.ReplayGainTrack = file.Tag.ReplayGainTrack ?? "";
track.ReplayGainTrackPeak = file.Tag.ReplayGainTrackPeak ?? "";
track.ReplayGainAlbum = file.Tag.ReplayGainAlbum ?? "";
track.ReplayGainAlbumPeak = file.Tag.ReplayGainAlbumPeak ?? "";
track.TrackNumber = file.Tag.Track;
track.TrackCount = file.Tag.TrackCount;
track.Year = (int)file.Tag.Year;
// Pictures
foreach (IPicture picture in file.Tag.Pictures)
{
MPTagThat.Core.Common.Picture pic = new MPTagThat.Core.Common.Picture
{
Type = picture.Type,
MimeType = picture.MimeType,
Description = picture.Description
};
pic.Data = picture.Data.Data;
track.Pictures.Add(pic);
}
// Comments
if (track.IsMp3 && id3v2tag != null)
{
foreach (CommentsFrame commentsframe in id3v2tag.GetFrames <CommentsFrame>())
{
track.ID3Comments.Add(new Comment(commentsframe.Description, commentsframe.Language, commentsframe.Text));
}
}
else
{
track.Comment = file.Tag.Comment;
}
// Lyrics
track.Lyrics = file.Tag.Lyrics;
if (track.IsMp3 && id3v2tag != null)
{
foreach (UnsynchronisedLyricsFrame lyricsframe in id3v2tag.GetFrames <UnsynchronisedLyricsFrame>())
{
// Only add non-empty Frames
if (lyricsframe.Text != "")
{
track.LyricsFrames.Add(new Lyric(lyricsframe.Description, lyricsframe.Language, lyricsframe.Text));
}
}
}
// Rating
if (track.IsMp3)
{
TagLib.Id3v2.PopularimeterFrame popmFrame = null;
// First read in all POPM Frames found
if (id3v2tag != null)
{
foreach (PopularimeterFrame popmframe in id3v2tag.GetFrames <PopularimeterFrame>())
{
// Only add valid POPM Frames
if (popmframe.User != "" && popmframe.Rating > 0)
{
track.Ratings.Add(new PopmFrame(popmframe.User, (int)popmframe.Rating, (int)popmframe.PlayCount));
}
}
popmFrame = TagLib.Id3v2.PopularimeterFrame.Get(id3v2tag, "MPTagThat", false);
if (popmFrame != null)
{
track.Rating = popmFrame.Rating;
}
}
if (popmFrame == null)
{
// Now check for Ape Rating
TagLib.Ape.Tag apetag = file.GetTag(TagTypes.Ape, true) as TagLib.Ape.Tag;
TagLib.Ape.Item apeItem = apetag.GetItem("RATING");
if (apeItem != null)
{
string rating = apeItem.ToString();
try
{
track.Rating = Convert.ToInt32(rating);
}
catch (Exception)
{ }
}
}
}
else if (track.TagType == "ape")
{
TagLib.Ape.Tag apetag = file.GetTag(TagTypes.Ape, true) as TagLib.Ape.Tag;
TagLib.Ape.Item apeItem = apetag.GetItem("RATING");
if (apeItem != null)
{
string rating = apeItem.ToString();
try
{
track.Rating = Convert.ToInt32(rating);
}
catch (Exception)
{ }
}
}
else if (track.TagType == "ogg" || track.TagType == "flac")
{
XiphComment xiph = file.GetTag(TagLib.TagTypes.Xiph, false) as XiphComment;
string[] rating = xiph.GetField("RATING");
if (rating.Length > 0)
{
try
{
track.Rating = Convert.ToInt32(rating[0]);
}
catch (Exception)
{ }
}
}
}
catch (Exception ex)
{
log.Error("Exception setting Tags for file: {0}. {1}", fileName, ex.Message);
}
#endregion
#region Set Properties
try
{
track.DurationTimespan = file.Properties.Duration;
int fileLength = (int)(fi.Length / 1024);
track.FileSize = fileLength.ToString();
track.BitRate = file.Properties.AudioBitrate.ToString();
track.SampleRate = file.Properties.AudioSampleRate.ToString();
track.Channels = file.Properties.AudioChannels.ToString();
track.Version = file.Properties.Description;
track.CreationTime = string.Format("{0:yyyy-MM-dd HH:mm:ss}", fi.CreationTime);
track.LastWriteTime = string.Format("{0:yyyy-MM-dd HH:mm:ss}", fi.LastWriteTime);
}
catch (Exception ex)
{
log.Error("Exception setting Properties for file: {0}. {1}", fileName, ex.Message);
}
#endregion
// Now copy all Text frames of an ID3 V2
try
{
if (track.IsMp3 && id3v2tag != null)
{
foreach (TagLib.Id3v2.Frame frame in id3v2tag.GetFrames())
{
string id = frame.FrameId.ToString();
if (!Util.StandardFrames.Contains(id) && Util.ExtendedFrames.Contains(id))
{
track.Frames.Add(new Frame(id, "", frame.ToString()));
}
else if (!Util.StandardFrames.Contains(id) && !Util.ExtendedFrames.Contains(id))
{
if ((Type)frame.GetType() == typeof(UserTextInformationFrame))
{
// Don't add Replaygain frames, as they are handled in taglib tags
if (!Util.IsReplayGain((frame as UserTextInformationFrame).Description))
{
track.UserFrames.Add(new Frame(id, (frame as UserTextInformationFrame).Description ?? "",
(frame as UserTextInformationFrame).Text.Length == 0
? ""
: (frame as UserTextInformationFrame).Text[0]));
}
}
else if ((Type)frame.GetType() == typeof(PrivateFrame))
{
track.UserFrames.Add(new Frame(id, (frame as PrivateFrame).Owner ?? "",
(frame as PrivateFrame).PrivateData == null
? ""
: (frame as PrivateFrame).PrivateData.ToString()));
}
else if ((Type)frame.GetType() == typeof(UniqueFileIdentifierFrame))
{
track.UserFrames.Add(new Frame(id, (frame as UniqueFileIdentifierFrame).Owner ?? "",
(frame as UniqueFileIdentifierFrame).Identifier == null
? ""
: (frame as UniqueFileIdentifierFrame).Identifier.ToString()));
}
else if ((Type)frame.GetType() == typeof(UnknownFrame))
{
track.UserFrames.Add(new Frame(id, "",
(frame as UnknownFrame).Data == null
? ""
: (frame as UnknownFrame).Data.ToString()));
}
else
{
track.UserFrames.Add(new Frame(id, "", frame.ToString()));
}
}
}
track.ID3Version = id3v2tag.Version;
}
}
catch (Exception ex)
{
log.Error("Exception getting User Defined frames for file: {0}. {1}", fileName, ex.Message);
}
return(track);
}
