public static ScannerItem FromFileData(IFileData fileData, ReplayGainMode mode)
{
var scannerItem = new ScannerItem()
{
FileName = fileData.FileName,
Mode = mode
};
if (mode == ReplayGainMode.Album)
{
var parts = new List <string>();
lock (fileData.MetaDatas)
{
var metaDatas = fileData.MetaDatas.ToDictionary(
element => element.Name,
StringComparer.OrdinalIgnoreCase
);
var metaDataItem = default(MetaDataItem);
if (metaDatas.TryGetValue(CommonMetaData.Year, out metaDataItem))
{
parts.Add(metaDataItem.Value);
}
if (metaDatas.TryGetValue(CommonMetaData.Album, out metaDataItem))
{
parts.Add(metaDataItem.Value);
}
}
scannerItem.GroupName = string.Join(" - ", parts);
}
return(scannerItem);
}
public ScanTaskBase(BassReplayGainScannerBehaviour behaviour, IFileData[] fileDatas, ReplayGainMode mode) : this()
{
this.Behaviour = behaviour;
this.FileDatas = fileDatas;
this.ScannerItems = fileDatas
.OrderBy(fileData => fileData.FileName)
.Select(fileData => ScannerItem.FromFileData(fileData, mode))
.ToArray();
}
protected virtual bool ScanTrack(ScannerItem scannerItem, IBassStream stream)
{
var info = default(ReplayGainInfo);
if (!BassReplayGain.Process(stream.ChannelHandle, out info))
{
return(false);
}
scannerItem.ItemPeak = info.peak;
scannerItem.ItemGain = info.gain;
return(true);
}
protected virtual string GetDescription(ScannerItem scannerItem)
{
var builder = new StringBuilder();
builder.Append(scannerItem.FileName);
if (scannerItem.Status != ScannerItemStatus.Complete && scannerItem.Errors.Any())
{
builder.AppendLine(" -> Error");
foreach (var error in scannerItem.Errors)
{
builder.AppendLine('\t' + error);
}
}
else
{
builder.AppendLine(" -> OK");
}
return(builder.ToString());
}
protected virtual void ScanTrack(ScannerItem scannerItem)
{
var success = default(bool);
var flags = BassFlags.Decode | BassFlags.Float;
var stream = this.CreateStream(scannerItem.FileName, flags);
if (stream.IsEmpty)
{
Logger.Write(this, LogLevel.Warn, "Failed to create stream for file \"{0}\": Unknown error.", scannerItem.FileName);
throw new InvalidOperationException(string.Format("Failed to create stream for file \"{0}\": Unknown error.", scannerItem.FileName));
}
Logger.Write(this, LogLevel.Debug, "Created stream for file \"{0}\": {1}", scannerItem.FileName, stream.ChannelHandle);
var monitor = new ChannelMonitor(scannerItem, stream);
try
{
monitor.Start();
success = this.ScanTrack(scannerItem, stream);
}
finally
{
monitor.Dispose();
Logger.Write(this, LogLevel.Debug, "Releasing stream for file \"{0}\": {1}", scannerItem.FileName, stream.ChannelHandle);
Bass.StreamFree(stream.ChannelHandle); //Not checking result code as it contains an error if the application is shutting down.
}
if (this.CancellationToken.IsCancellationRequested)
{
scannerItem.Status = ScannerItemStatus.Cancelled;
}
else if (success)
{
scannerItem.Status = ScannerItemStatus.Complete;
}
else
{
Logger.Write(this, LogLevel.Warn, "Scanning file \"{0}\" failed: The format is likely not supported.", scannerItem.FileName);
scannerItem.AddError("The format is likely not supported.");
scannerItem.Status = ScannerItemStatus.Failed;
}
}
public BassScannerMonitorEventArgs(ScannerItem scannerItem)
{
this.ScannerItem = scannerItem;
}
public ReportRow(Guid id, IFileData fileData, ScannerItem scannerItem)
{
this.Id = id;
this.FileData = fileData;
this.ScannerItem = scannerItem;
}
protected virtual IFileData GetFileData(ScannerItem scannerItem)
{
return(this.FileDatas.FirstOrDefault(fileData => string.Equals(fileData.FileName, scannerItem.FileName, StringComparison.OrdinalIgnoreCase)));
}
public ChannelMonitor(ScannerItem scannerItem, IBassStream stream)
{
this.ScannerItem = scannerItem;
this.Stream = stream;
}