private TsMediaStreamSource.Operation HandleOperation(TsMediaStreamSource.Operation operation)
{
int num1 = (int)operation;
int comparand = this._pendingOperations;
while (true)
{
int num2 = comparand & ~num1;
if (num2 != comparand)
{
int num3 = Interlocked.CompareExchange(ref this._pendingOperations, num2, comparand);
if (num3 != comparand)
{
comparand = num3;
}
else
{
goto label_3;
}
}
else
{
break;
}
}
return(TsMediaStreamSource.Operation.None);
label_3:
return((TsMediaStreamSource.Operation)(comparand & num1));
}
private bool RequestOperation(TsMediaStreamSource.Operation operation)
{
int num1 = (int)operation;
int comparand = this._pendingOperations;
while (true)
{
int num2 = comparand | num1;
if (num2 != comparand)
{
int num3 = Interlocked.CompareExchange(ref this._pendingOperations, num2, comparand);
if (num3 != comparand)
{
comparand = num3;
}
else
{
goto label_3;
}
}
else
{
break;
}
}
return(false);
label_3:
return(true);
}
private void RequestOperationAndSignal(TsMediaStreamSource.Operation operation)
{
if (!this.RequestOperation(operation))
{
return;
}
this._taskScheduler.Signal();
}
private void ForceClose()
{
TsMediaStreamSource.Operation operation = this.HandleOperation(TsMediaStreamSource.Operation.Audio | TsMediaStreamSource.Operation.Video | TsMediaStreamSource.Operation.Seek);
if (TsMediaStreamSource.Operation.None != (operation & TsMediaStreamSource.Operation.Seek))
{
this.ValidateEvent(MediaStreamFsm.MediaEvent.CallingReportSeekCompleted);
this.ReportSeekCompleted(0L);
}
if ((operation & TsMediaStreamSource.Operation.Video) != TsMediaStreamSource.Operation.None && null != this._videoStreamDescription)
{
this.SendLastStreamSample(this._videoStreamDescription);
}
if ((operation & TsMediaStreamSource.Operation.Audio) == TsMediaStreamSource.Operation.None || null == this._audioStreamDescription)
{
return;
}
this.SendLastStreamSample(this._audioStreamDescription);
}
private void SignalHandler()
{
this._taskScheduler.ThrowIfNotOnThread();
TsMediaStreamSource.Operation operation1 = TsMediaStreamSource.Operation.None;
TsMediaStreamSource.Operation operation2 = TsMediaStreamSource.Operation.None;
try
{
if (this._isClosed)
{
this.ForceClose();
}
else
{
bool flag;
do
{
if (TsMediaStreamSource.Operation.None == this.HandleOperation(TsMediaStreamSource.Operation.Seek))
{
if (TsMediaStreamSource.SourceState.Play == this.State)
{
operation1 = this.HandleOperation(TsMediaStreamSource.Operation.Audio | TsMediaStreamSource.Operation.Video);
operation2 |= operation1;
if (TsMediaStreamSource.Operation.None != operation2)
{
TsMediaStreamSource.Operation operation3 = this._streamOpenFlags;
bool canCallReportBufferingProgress = operation3 == (operation2 & operation3);
flag = false;
if (TsMediaStreamSource.Operation.None != (operation2 & TsMediaStreamSource.Operation.Video) && null != this.VideoStreamSource && this.SendStreamSample(this.VideoStreamSource, this._videoStreamDescription, canCallReportBufferingProgress))
{
operation2 &= ~TsMediaStreamSource.Operation.Video;
flag = true;
}
if (TsMediaStreamSource.Operation.None != (operation2 & TsMediaStreamSource.Operation.Audio) && null != this.AudioStreamSource && this.SendStreamSample(this.AudioStreamSource, this._audioStreamDescription, canCallReportBufferingProgress))
{
operation2 &= ~TsMediaStreamSource.Operation.Audio;
flag = true;
}
}
else
{
goto label_3;
}
}
else
{
goto label_8;
}
}
else
{
goto label_4;
}
}while (flag);
goto label_20;
label_4:
if (TsMediaStreamSource.Operation.None != operation1)
{
operation2 |= operation1;
}
Task task = this.SeekHandler();
TaskCollector.Default.Add(task, "TsMediaStreamSource.SignalHandler SeekHandler()");
return;
label_8:
return;
label_3:
return;
label_20 :;
}
}
catch (Exception ex)
{
Debug.WriteLine("TsMediaStreamSource.SignalHandler() failed: " + ExceptionExtensions.ExtendedMessage(ex));
}
finally
{
if (TsMediaStreamSource.Operation.None != operation2)
{
Debug.WriteLine("TsMediaStreamSource.SignalHandler() re-requesting " + (object)operation2);
this.RequestOperation(operation2);
}
}
}
