private async Task CheckPrebufferingAsync(SongBuffer inStream, CancellationToken cancelToken, long size)
{
while (!inStream.BufferingCompleted && inStream.Length < size)
{
await Task.Delay(100, cancelToken);
}
_log.Debug("Buffering successfull");
}
public async Task Play(IAudioClient voiceClient, CancellationToken cancelToken)
{
var filename = Path.Combine(Music.MusicDataPath, DateTime.Now.UnixTimestamp().ToString());
SongBuffer inStream = new SongBuffer(MusicPlayer, filename, SongInfo, skipTo, frameBytes * 100);
var bufferTask = inStream.BufferSong(cancelToken).ConfigureAwait(false);
bytesSent = 0;
try
{
var attempt = 0;
var prebufferingTask = CheckPrebufferingAsync(inStream, cancelToken, 1.MiB()); //Fast connection can do this easy
var finished = false;
var count = 0;
var sw = new Stopwatch();
var slowconnection = false;
sw.Start();
while (!finished)
{
var t = await Task.WhenAny(prebufferingTask, Task.Delay(2000, cancelToken));
if (t != prebufferingTask)
{
count++;
if (count == 10)
{
slowconnection = true;
prebufferingTask = CheckPrebufferingAsync(inStream, cancelToken, 20.MiB());
_log.Warn("Slow connection buffering more to ensure no disruption, consider hosting in cloud");
continue;
}
if (inStream.BufferingCompleted && count == 1)
{
_log.Debug("Prebuffering canceled. Cannot get any data from the stream.");
return;
}
else
{
continue;
}
}
else if (prebufferingTask.IsCanceled)
{
_log.Debug("Prebuffering canceled. Cannot get any data from the stream.");
return;
}
finished = true;
}
sw.Stop();
_log.Debug("Prebuffering successfully completed in " + sw.Elapsed);
var outStream = voiceClient.CreatePCMStream(960);
int nextTime = Environment.TickCount + milliseconds;
byte[] buffer = new byte[frameBytes];
while (!cancelToken.IsCancellationRequested)
{
//Console.WriteLine($"Read: {songBuffer.ReadPosition}\nWrite: {songBuffer.WritePosition}\nContentLength:{songBuffer.ContentLength}\n---------");
var read = await inStream.ReadAsync(buffer, 0, buffer.Length).ConfigureAwait(false);
//await inStream.CopyToAsync(voiceClient.OutputStream);
if (read < frameBytes)
{
_log.Debug("read {0}", read);
}
unchecked
{
bytesSent += (ulong)read;
}
if (read < frameBytes)
{
if (read == 0)
{
if (inStream.BufferingCompleted)
{
break;
}
if (attempt++ == 20)
{
MusicPlayer.SongCancelSource.Cancel();
break;
}
if (slowconnection)
{
_log.Warn("Slow connection has disrupted music, waiting a bit for buffer");
await Task.Delay(1000, cancelToken).ConfigureAwait(false);
}
else
{
await Task.Delay(100, cancelToken).ConfigureAwait(false);
}
}
else
{
attempt = 0;
}
}
else
{
attempt = 0;
}
while (this.MusicPlayer.Paused)
{
await Task.Delay(200, cancelToken).ConfigureAwait(false);
}
buffer = AdjustVolume(buffer, MusicPlayer.Volume);
if (read != frameBytes)
{
continue;
}
nextTime = unchecked (nextTime + milliseconds);
int delayMillis = unchecked (nextTime - Environment.TickCount);
if (delayMillis > 0)
{
await Task.Delay(delayMillis, cancelToken).ConfigureAwait(false);
}
await outStream.WriteAsync(buffer, 0, read).ConfigureAwait(false);
}
}
finally
{
await bufferTask;
if (inStream != null)
{
inStream.Dispose();
}
}
}
