public void Play()
{
switch (AL.GetSourceState(this.alSourceId))
{
case ALSourceState.Playing:
break;
case ALSourceState.Paused:
this.Resume();
break;
default:
if (this.bufferStack.Count == this.BufferCount)
{
this.Prepare(false);
}
else if (!this.FirstBufferPrecached)
{
ALHelper.Log(string.Concat(new object[4]
{
(object)"Buffers lost for ",
(object)this.RealName,
(object)" with source ",
(object)this.alSourceId
}), "OpenAL");
}
AL.SourcePlay(this.alSourceId);
this.Precaching = false;
OggStreamer.Instance.AddStream(this);
break;
}
}
private void EnsureBuffersFilled()
{
while (!this.cancelled && !this.cancelled)
{
this.threadLocalStreams.Clear();
OggStreamer.iterationLock.EnterReadLock();
this.threadLocalStreams.AddRange((IEnumerable <OggStream>) this.streams);
OggStreamer.iterationLock.ExitReadLock();
if (this.threadLocalStreams.Count != 0)
{
int val1 = int.MaxValue;
for (int index = this.threadLocalStreams.Count - 1; index >= 0; --index)
{
OggStream oggStream = this.threadLocalStreams[index];
OggStreamer.iterationLock.EnterReadLock();
bool flag = !this.streams.Contains(oggStream);
OggStreamer.iterationLock.ExitReadLock();
if (flag)
{
this.threadLocalStreams.RemoveAt(index);
}
else
{
int num1;
AL.GetSource(oggStream.alSourceId, ALGetSourcei.BuffersQueued, out num1);
oggStream.QueuedBuffers = num1;
int num2;
AL.GetSource(oggStream.alSourceId, ALGetSourcei.BuffersProcessed, out num2);
oggStream.ProcessedBuffers = num2;
if (!oggStream.Precaching)
{
val1 = Math.Min(val1, num1 - num2);
}
}
}
foreach (OggStream stream in this.threadLocalStreams)
{
stream.PreparationLock.EnterReadLock();
OggStreamer.iterationLock.EnterReadLock();
bool flag1 = !this.streams.Contains(stream);
OggStreamer.iterationLock.ExitReadLock();
if (flag1)
{
stream.PreparationLock.ExitReadLock();
}
else if (stream.ProcessedBuffers == 0 && stream.bufferStack.Count == 0)
{
stream.PreparationLock.ExitReadLock();
}
else if (stream.QueuedBuffers - stream.ProcessedBuffers > val1)
{
stream.PreparationLock.ExitReadLock();
}
else if (stream.Precaching && val1 <= stream.BufferCount * 2 / 3)
{
stream.PreparationLock.ExitReadLock();
}
else
{
int num = stream.ProcessedBuffers <= 0 ? stream.bufferStack.Pop() : AL.SourceUnqueueBuffer(stream.alSourceId);
bool flag2 = this.FillBuffer(stream, num);
if (flag2)
{
if (stream.IsLooped)
{
stream.Reader.DecodedTime = TimeSpan.Zero;
}
else
{
OggStreamer.iterationLock.EnterWriteLock();
this.streams.Remove(stream);
OggStreamer.iterationLock.ExitWriteLock();
}
}
AL.SourceQueueBuffer(stream.alSourceId, num);
if (!stream.FirstBufferPrecached)
{
Interlocked.Decrement(ref this.PendingPrecaches);
stream.FirstBufferPrecached = true;
}
if (flag2 && !stream.IsLooped)
{
stream.PreparationLock.ExitReadLock();
}
else
{
stream.PreparationLock.ExitReadLock();
stream.StoppingLock.EnterReadLock();
if (stream.Precaching)
{
stream.StoppingLock.ExitReadLock();
}
else
{
OggStreamer.iterationLock.EnterReadLock();
bool flag3 = !this.streams.Contains(stream);
OggStreamer.iterationLock.ExitReadLock();
if (flag3)
{
stream.StoppingLock.ExitReadLock();
}
else
{
if (AL.GetSourceState(stream.alSourceId) == ALSourceState.Stopped)
{
ALHelper.Log(string.Concat(new object[4]
{
(object)"Buffer underrun on ",
(object)stream.RealName,
(object)" with source ",
(object)stream.alSourceId
}), "OpenAL");
AL.SourcePlay(stream.alSourceId);
}
stream.StoppingLock.ExitReadLock();
}
}
}
}
}
}
}
}
