private async Task ReadResponseAsync(IMediaParser mediaParser, IWebStreamResponse webStreamResponse, WebResponse webResponse, SingleStreamMediaManager.QueueThrottle throttle, CancellationToken cancellationToken)
{
byte[] buffer = new byte[16384];
Task cancellationTask = CancellationTokenExtensions.AsTask(cancellationToken);
try
{
ISegmentMetadata segmentMetadata = this._webMetadataFactory.CreateSegmentMetadata(webResponse, (ContentType)null);
mediaParser.StartSegment(segmentMetadata);
using (Stream stream = await webStreamResponse.GetStreamAsync(cancellationToken).ConfigureAwait(false))
{
while (true)
{
Task waitTask = throttle.WaitAsync();
if (!waitTask.IsCompleted)
{
Task task = await TaskEx.WhenAny(waitTask, cancellationTask).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
}
int length = await stream.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false);
if (length > 0)
{
mediaParser.ProcessData(buffer, 0, length);
}
else
{
break;
}
}
}
}
finally
{
mediaParser.ProcessEndOfData();
}
}
private async Task SimplePlayAsync(ContentType contentType, IWebReader webReader, IWebStreamResponse webStreamResponse, WebResponse webResponse, TaskCompletionSource <bool> configurationTaskCompletionSource, CancellationToken cancellationToken)
{
try
{
this._mediaStreamConfigurator.Initialize();
this._mediaStreamConfigurator.MediaManager = (IMediaManager)this;
IMediaParser mediaParser = await this._mediaParserFactory.CreateAsync((IMediaParserParameters) new MediaParserParameters(), contentType, cancellationToken).ConfigureAwait(false);
if (null == mediaParser)
{
throw new NotSupportedException("Unsupported content type: " + (object)contentType);
}
this.State = MediaManagerState.Opening;
EventHandler configurationComplete = (EventHandler)null;
configurationComplete = (EventHandler)((sender, args) =>
{
mediaParser.ConfigurationComplete -= configurationComplete;
configurationTaskCompletionSource.TrySetResult(true);
});
mediaParser.ConfigurationComplete += configurationComplete;
using (IBufferingManager bufferingManager = this._bufferingManagerFactory())
{
SingleStreamMediaManager.QueueThrottle throttle = new SingleStreamMediaManager.QueueThrottle();
bufferingManager.Initialize((IQueueThrottling)throttle, new Action(this._mediaStreamConfigurator.CheckForSamples));
mediaParser.Initialize(bufferingManager, (Action <IProgramStreams>)null);
IStreamMetadata streamMetadata = this._webMetadataFactory.CreateStreamMetadata(webResponse, (ContentType)null);
mediaParser.InitializeStream(streamMetadata);
Task reader = (Task)null;
try
{
using (webReader)
{
try
{
if (null == webStreamResponse)
{
webStreamResponse = await webReader.GetWebStreamAsync((Uri)null, false, cancellationToken, (Uri)null, new long?(), new long?(), webResponse).ConfigureAwait(false);
}
reader = this.ReadResponseAsync(mediaParser, webStreamResponse, webResponse, throttle, cancellationToken);
Task task = await TaskEx.WhenAny((Task)configurationTaskCompletionSource.Task, CancellationTokenExtensions.AsTask(cancellationToken)).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
await MediaStreamSourceExtensions.PlayAsync(this._mediaStreamConfigurator, (IEnumerable <IMediaParserMediaStream>) mediaParser.MediaStreams, new TimeSpan?(), cancellationToken).ConfigureAwait(false);
this.State = MediaManagerState.Playing;
await reader.ConfigureAwait(false);
reader = (Task)null;
}
finally
{
if (null != webStreamResponse)
{
webStreamResponse.Dispose();
}
}
}
}
catch (OperationCanceledException ex)
{
}
catch (Exception ex)
{
string message = ExceptionExtensions.ExtendedMessage(ex);
Debug.WriteLine("SingleStreamMediaManager.SimplePlayAsync() failed: " + message);
this.SetMediaState(MediaManagerState.Error, message);
}
this.State = MediaManagerState.Closing;
if (null != reader)
{
try
{
await reader.ConfigureAwait(false);
}
catch (OperationCanceledException ex)
{
}
catch (Exception ex)
{
Debug.WriteLine("SingleStreamMediaManager.SimplePlayAsync() reader failed: " + ExceptionExtensions.ExtendedMessage(ex));
}
}
mediaParser.ConfigurationComplete -= configurationComplete;
mediaParser.EnableProcessing = false;
mediaParser.FlushBuffers();
bufferingManager.Flush();
bufferingManager.Shutdown((IQueueThrottling)throttle);
await this._mediaStreamConfigurator.CloseAsync().ConfigureAwait(false);
}
}
catch (Exception ex)
{
Debug.WriteLine("SingleStreamMediaManager.SimplePlayAsync() cleanup failed: " + ExceptionExtensions.ExtendedMessage(ex));
}
this._mediaStreamConfigurator.MediaManager = (IMediaManager)null;
if (!configurationTaskCompletionSource.Task.IsCompleted)
{
configurationTaskCompletionSource.TrySetCanceled();
}
this.State = MediaManagerState.Closed;
await this._reportStateTask.WaitAsync().ConfigureAwait(false);
}
