public async Task ImplicitLoadMetadata()
{
var metadata = new MusicMetadata(TimeSpan.Zero, 0);
var musicFile = new MusicFile(async fileNme =>
{
await Task.Yield();
return metadata;
}, "testfile.mp3");
Assert.AreEqual("testfile.mp3", musicFile.FileName);
Assert.IsFalse(musicFile.SharedMusicFiles.Any());
Assert.IsFalse(musicFile.IsMetadataLoaded);
Assert.IsNull(musicFile.Metadata);
await Task.Delay(5);
Assert.AreEqual(metadata, musicFile.Metadata);
Assert.AreEqual(metadata, musicFile.GetMetadataAsync().Result);
Assert.IsTrue(musicFile.IsMetadataLoaded);
}
private async void TranscodeAsync(MusicFile musicFile)
{
var destinationFileName = GetDestinationFileName(musicFile.FileName);
var transcodeItem = new TranscodeItem(musicFile, destinationFileName);
transcodingManager.AddTranscodeItem(transcodeItem);
Logger.Verbose("Start Transcode: {0} > {1}", musicFile.FileName, destinationFileName);
var cts = new CancellationTokenSource();
cancellationTokenSources.Add(transcodeItem, cts);
UpdateCancelCommands();
var metadata = await musicFile.GetMetadataAsync();
uint bitrate = GetConvertBitrate(metadata.Bitrate);
try
{
await TranscodeAsyncCore(transcodeItem, bitrate, cts.Token);
}
catch (OperationCanceledException)
{
transcodingManager.RemoveTranscodeItem(transcodeItem);
}
catch (Exception ex)
{
Logger.Error("TranscodeAsync exception: {0}", ex);
transcodeItem.Error = ex;
}
finally
{
cancellationTokenSources.Remove(transcodeItem);
if (allTranscodingsCanceledCompletion != null && !cancellationTokenSources.Any())
{
allTranscodingsCanceledCompletion.SetResult(null);
}
UpdateCancelCommands();
Logger.Verbose("End Transcode: {0} > {1}", musicFile.FileName, destinationFileName);
}
}
public void TotalDurationWithMetadataLoading()
{
var manager = new PlaylistManager();
Assert.AreEqual(TimeSpan.Zero, manager.TotalDuration);
var firstFile = new MockMusicFile(new MusicMetadata(TimeSpan.FromSeconds(10), 0), "");
manager.AddAndReplaceItems(new[] { new PlaylistItem(firstFile) });
var secondMetadata = new MusicMetadata(TimeSpan.FromSeconds(20), 0);
var secondFile = new MusicFile(async x =>
{
await Task.Delay(10);
return secondMetadata;
}, "");
manager.AddItems(new[] { new PlaylistItem(secondFile) });
Assert.IsTrue(manager.IsTotalDurationEstimated);
Assert.AreEqual(TimeSpan.FromSeconds(20), manager.TotalDuration);
AssertHelper.PropertyChangedEvent(manager, x => x.TotalDuration, () => secondFile.GetMetadataAsync().GetResult());
Assert.IsFalse(manager.IsTotalDurationEstimated);
Assert.AreEqual(TimeSpan.FromSeconds(30), manager.TotalDuration);
var thirdFile = new MockMusicFile(new MusicMetadata(TimeSpan.FromSeconds(30), 0), "");
AssertHelper.PropertyChangedEvent(manager, x => x.TotalDuration, () => manager.AddItems(new[] { new PlaylistItem(thirdFile) }));
Assert.AreEqual(TimeSpan.FromSeconds(60), manager.TotalDuration);
}