/// <summary>
/// Loads the given file.
/// </summary>
/// <param name="Source">The file's path or an uri to load.</param>
/// <returns>An <see cref="IPlaybackManager"/> instance that can handle the given file.</returns>
/// <exception cref="ArgumentNullException">when <paramref name="SongInfo"/> is null</exception>
/// <exception cref="NotSupportedException">when the media represented by <paramref name="SongInfo"/> is not supported by any playback methods</exception>
public async static Task <IPlaybackManager> LoadMedia(ISongInfo SongInfo)
{
#region Error checking
if (SongInfo == null)
{
throw new ArgumentNullException(nameof(SongInfo));
}
#endregion
//If the Source is file:
if (File.Exists(SongInfo.Source))
{
string Extension = PlayerUtils.GetFileExtension(SongInfo.Source);
Progress <LongOperationProgress> FileOpenProgress = new Progress <LongOperationProgress>();
FileOpenProgress.ProgressChanged += OpenFileProgressChanged;
//In case of any file supported by BASS:
if (BassManager.GetSupportedExtensions().Contains(Extension))
{
//If Audio CD track:
if (Extension == "cda")
{
return(new AudioCdPlayback(SongInfo.Source));
}
else
{
using (Stream SourceStream = File.OpenRead(SongInfo.Source)) {
var unmanagedStream = await UnmanagedStream.CreateFromStream(SourceStream, FileOpenProgress);
//If Midi file:
if (new string[] { "mid", "midi", "kar", "rmi" }.Contains(Extension))
{
return(new LocalMidiFilePlayback(
unmanagedStream,
SongInfo,
@"C:\SGM-V2.01.sf2"
));
}
//Any other stuff...
else
{
return(new LocalAudioFilePlayback(
unmanagedStream,
SongInfo
));
}
}
}
}
}
//If the Source is an Uri:
else if (Uri.IsWellFormedUriString(SongInfo.Source, UriKind.Absolute))
{
//Youtube link:
if (SongInfo is YoutubeSongInfo)
{
Progress <LongOperationProgress> Progress = new Progress <LongOperationProgress>();
Progress.ProgressChanged += OpenFileProgressChanged;
IPlaybackManager Result = await YoutubePlayback.DownloadVideoAsync(SongInfo, Progress);
Progress.ProgressChanged -= OpenFileProgressChanged;
return(Result);
}
}
Trace.TraceWarning($"[Playback] Unsupported media: {SongInfo.Source}");
throw new NotSupportedException("Nem támogatott média");
}