private void ReadFoobarWorker()
{
try
{
Foobar2000.Tracks07 tracks = SelectedPlaylist.GetTracks(null);
//Now searching for something, so set the state to indicate that.
//Also set the count of albums, for the progress bar
Dispatcher.Invoke(DispatcherPriority.DataBind, new ThreadStart(delegate
{
State = BrowserState.FindingFiles;
Progress = 0;
ProgressMax = tracks.Count;
ProgressText = "Reading Media Library...";
}));
foreach (Foobar2000.Track07 track in tracks)
{
string artistName = track.FormatTitle("%album artist%");
string albumName = track.FormatTitle("%album%");
string filename = track.FormatTitle("%path%");
string path;
try
{
path = System.IO.Path.GetDirectoryName(filename);
}
catch (Exception e)
{
System.Diagnostics.Trace.WriteLine("Could not get file path for \"" + artistName + "\" / \"" + albumName + "\": " + filename);
System.Diagnostics.Trace.Indent();
System.Diagnostics.Trace.WriteLine(e.Message);
System.Diagnostics.Trace.Unindent();
continue; //skip this one, can't find the path.
}
var album = new Album(path, artistName, albumName);
bool addedAlbum = false;
Dispatcher.Invoke(DispatcherPriority.DataBind, new ThreadStart(delegate
{
Progress++;
if (!(String.IsNullOrEmpty(artistName) && String.IsNullOrEmpty(albumName))) //No point adding it if no artist or album could be found.
{
addedAlbum = mAlbums.Add(album);
}
}));
if (addedAlbum)
{
// Check for embedded art
int? embeddedArtIndex = null;
TagLib.File fileTags = null;
try
{
fileTags = TagLib.File.Create(filename, TagLib.ReadStyle.None);
embeddedArtIndex = EmbeddedArtHelpers.GetEmbeddedFrontCoverIndex(fileTags);
}
catch (Exception e)
{
System.Diagnostics.Trace.WriteLine("TagLib# could not get embedded artwork for file: " + filename);
System.Diagnostics.Trace.Indent();
System.Diagnostics.Trace.WriteLine(e.Message);
System.Diagnostics.Trace.Unindent();
//If embedded images couldn't be read, ignore that
}
finally
{
if (fileTags != null)
{
fileTags.Mode = TagLib.File.AccessMode.Closed;
}
}
if (embeddedArtIndex.HasValue)
{
//Read the picture from the data
album.SetArtFile(EmbeddedArtHelpers.GetEmbeddedFilePath(filename, embeddedArtIndex.Value));
}
}
}
//Finished with the FindingFiles state, so now set the state to whatever the results state is (either FindingArt, or Done).
Dispatcher.BeginInvoke(DispatcherPriority.DataBind, new ThreadStart(delegate
{
ProgressText = mResults.ProgressText;
State = mResults.State;
}));
}
catch (ThreadAbortException)
{
Dispatcher.BeginInvoke(DispatcherPriority.DataBind, new ThreadStart(delegate
{
State = BrowserState.Stopped;
}));
}
catch (Exception e)
{
uint hResult = (uint)System.Runtime.InteropServices.Marshal.GetHRForException(e);
if (e is COMException ||
(hResult == 0x800706BE || //RPC failed
hResult == 0x80004002)) //No interface
{
SetErrorState("Lost connection to Foobar automation server while reading media library");
}
else
{
SetErrorState(String.Format("Error occurred while reading media library: {0}", e.Message));
}
}
}
/// <summary>Reads the album and artist data from specified media file or folder. Adds it to the <see cref="mAlbums"/> collection, and if it does so, also adds it to <paramref name="addedAlbums"/>.</summary>
/// <param name="filePathPattern">Use null to use the ID3 tags instead</param>
/// <returns>The <see cref="Album"/> that was added to <see cref="mAlbums"/>, or <c>null</c> if none could be read.</returns>
private void ReadMediaFile(FileSystemInfo file, Regex filePathPattern, IList <Album> addedAlbums)
{
if (file is DirectoryInfo && filePathPattern == null) //If a DirectoryInfo is used, then the filePathPattern must have ended in \.
{
throw new ArgumentException("Directories are only supported for pattern matching, not ID3 tags", "file");
}
Dispatcher.BeginInvoke(DispatcherPriority.DataBind, new ThreadStart(delegate
{
ProgressText = "Searching... " + file.Name;
}));
string artistName = null;
string albumName = null;
int? embeddedArtIndex = null;
if (filePathPattern == null)
{
//Read ID3 Tags
TagLib.File fileTags = null;
try
{
fileTags = TagLib.File.Create(file.FullName, TagLib.ReadStyle.None);
if (fileTags.Tag.AlbumArtists.Length == 0)
{
artistName = String.Join(" / ", fileTags.Tag.Performers);
}
else
{
artistName = String.Join(" / ", fileTags.Tag.AlbumArtists);
}
albumName = fileTags.Tag.Album;
embeddedArtIndex = EmbeddedArtHelpers.GetEmbeddedFrontCoverIndex(fileTags);
}
catch (Exception e)
{
System.Diagnostics.Trace.WriteLine("TagLib# could not get artist and album information for file: " + file.FullName);
System.Diagnostics.Trace.Indent();
System.Diagnostics.Trace.WriteLine(e.Message);
System.Diagnostics.Trace.Unindent();
return; //If this media file couldn't be read, just go on to the next one.
}
finally
{
if (fileTags != null)
{
fileTags.Mode = TagLib.File.AccessMode.Closed;
}
}
}
else
{
//Read from file path
Match match = filePathPattern.Match(file.FullName);
if (match.Success)
{
artistName = match.Groups["artist"].Value;
albumName = match.Groups["album"].Value;
}
}
if (!(String.IsNullOrEmpty(artistName) && String.IsNullOrEmpty(albumName))) //No point adding it if no artist or album could be found.
{
string basePath;
if (file is FileInfo)
{
basePath = ((FileInfo)file).DirectoryName;
}
else
{
System.Diagnostics.Debug.Assert(file is DirectoryInfo, "Expecting file to be one of FileInfo or DirectoryInfo");
basePath = ((DirectoryInfo)file).FullName;
}
Album album = new Album(basePath, artistName, albumName);
if (embeddedArtIndex.HasValue)
{
//Read the picture from the data
album.SetArtFile(EmbeddedArtHelpers.GetEmbeddedFilePath(file.FullName, embeddedArtIndex.Value));
}
Dispatcher.Invoke(DispatcherPriority.DataBind, new ThreadStart(delegate
{
if (mAlbums.Add(album))
{
addedAlbums.Add(album);
}
}));
}
}