/// <summary>
/// Start service loop.
/// </summary>
private async Task StartAsyncSend()
{
Running = true;
while (Running)
{
if (OutStream == null || !OutStream.CanWrite)
{
Thread.Sleep(100);
continue;
}
try
{
if (AudioQueue.Count > 0)
{
byte[] mixed = new byte[AudioHelpers.BUFFER_SIZE * AudioHelpers.CHANNEL_COUNT];
for (int i = 0; i < AudioHelpers.FRAME_SAMPLES; ++i)
{
int sample = 0;
foreach (var audioPair in AudioQueue)
{
var session = audioPair.Value;
if (session.State == ReproductionState.Paused)
{
continue;
}
if (session.State == ReproductionState.Stopped)
{
session.CloseReproduction();
}
if (session.State == ReproductionState.Closed || session.EndOfStream)
{
AudioQueue.TryRemove(audioPair.Key, out var e);
continue;
}
double volume = Math.Max(Math.Min((session.Source?.Volume ?? DefaultAudioSource.Instance.Volume) / 100, 1), 0);
double gain = (session.Source?.Gain ?? DefaultAudioSource.Instance.Gain) + 1;
byte[] buffer = new byte[AudioHelpers.SAMPLE_SIZE];
if (session.Read(buffer, 0, AudioHelpers.SAMPLE_SIZE) > 0)
{
sample += (Int32)(AudioHelpers.GetInt16(buffer, 0, true) * volume * gain);
}
}
short sampleValue = (short)Math.Min(Math.Max(short.MinValue, sample), short.MaxValue);
AudioHelpers.GetBytes(sampleValue, mixed, i * AudioHelpers.SAMPLE_SIZE, true);
}
// Send the buffer to Discord
await OutStream.WriteAsync(mixed, 0, AudioHelpers.FRAME_SAMPLES *AudioHelpers.CHANNEL_COUNT);
}
else
{
// Flush stream
await OutStream.FlushAsync();
Thread.Sleep(100);
}
}
catch (Exception e)
{
}
}
await Task.CompletedTask;
}
public Task FlushAsync(CancellationToken cancellationToken)
{
return(OutStream.FlushAsync(cancellationToken));
}
