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);
}
public async Task InitializeAsync(ISegmentManagerReaders segmentManagerReaders, Action checkConfiguration,
Action checkForSamples, CancellationToken cancellationToken, Action<IProgramStreams> programStreamsHandler)
{
_checkConfiguration = checkConfiguration;
var startReaderTask = _segmentReaders.Manager.StartAsync();
var localReader = this;
var queueWorker = new QueueWorker<WorkBuffer>(
wi =>
{
//Debug.WriteLine("MediaReader dequeued " + wi);
var mediaParser = localReader._mediaParser;
if (null == wi)
mediaParser.ProcessEndOfData();
else
{
if (null != wi.Metadata)
{
mediaParser.StartSegment(wi.Metadata);
wi.Metadata = null;
}
mediaParser.ProcessData(wi.Buffer, 0, wi.Length);
}
},
buffer => _blockingPool.Free(buffer));
_queueWorker = queueWorker;
_callbackReader = new CallbackReader(segmentManagerReaders.Readers, queueWorker.Enqueue, _blockingPool);
_bufferingManager.Initialize(queueWorker, checkForSamples);
try
{
await startReaderTask.ConfigureAwait(false);
var streamContentType = _segmentReaders.Manager.StreamContentType;
if (null == streamContentType)
{
Debug.WriteLine("MediaReader.CreateReaderPipeline() unable to determine content type, defaulting to transport stream");
streamContentType = ContentTypes.TransportStream;
}
else if (ContentTypes.Binary == streamContentType)
{
Debug.WriteLine("MediaReader.CreateReaderPipeline() detected binary content, defaulting to transport stream");
streamContentType = ContentTypes.TransportStream;
}
var mediaParserParameters = new MediaParserParameters();
_mediaParser = await _mediaParserFactory.CreateAsync(mediaParserParameters, streamContentType, cancellationToken).ConfigureAwait(false);
if (null == _mediaParser)
throw new NotSupportedException("Unsupported stream content type: " + streamContentType);
_mediaParser.ConfigurationComplete += ConfigurationComplete;
_mediaParser.Initialize(_bufferingManager, programStreamsHandler);
_mediaParser.InitializeStream(_segmentReaders.Manager.StreamMetadata);
}
catch (Exception)
{
_bufferingManager.Shutdown(queueWorker);
throw;
}
}
