internal async Task <MediaStreamSample> GetNextSampleAsync(CancellationToken cancelToken) { if (sampleProvider == null) { sampleProvider = AudioProviderFactory.GetAudioProvider(shoutcastStream.AudioInfo.AudioFormat); } //todo check for internet connection and socket connection as well cancelToken.ThrowIfCancellationRequested(); MediaStreamSample sample = null; uint sampleLength = 0; //if metadataPos is less than sampleSize away from metadataInt if (shoutcastStream.serverSettings.RequestSongMetdata && (shoutcastStream.metadataInt - metadataPos <= sampleProvider.GetSampleSize() && shoutcastStream.metadataInt - metadataPos > 0)) { //parse part of the frame. byte[] partialFrame = new byte[shoutcastStream.metadataInt - metadataPos]; var read = await socket.LoadAsync(shoutcastStream.metadataInt - metadataPos); if (read == 0 || read < partialFrame.Length) { //disconnected. throw new ShoutcastDisconnectionException(); } await socket.ReadBytesAsync(partialFrame); metadataPos += shoutcastStream.metadataInt - metadataPos; Tuple <MediaStreamSample, uint> result = await sampleProvider.ParseSampleAsync(this, socket, partial : true, partialBytes : partialFrame).ConfigureAwait(false); sample = result.Item1; sampleLength = result.Item2; cancelToken.ThrowIfCancellationRequested(); } else { await HandleMetadataAsync(cancelToken); Tuple <MediaStreamSample, uint> result = await sampleProvider.ParseSampleAsync(this, socket).ConfigureAwait(false); sample = result.Item1; sampleLength = result.Item2; cancelToken.ThrowIfCancellationRequested(); if (sample == null || sampleLength == 0) //OLD bug: on RELEASE builds, sample.Buffer causes the app to die due to a possible .NET Native bug { //MediaStreamSource.NotifyError(MediaStreamSourceErrorStatus.DecodeError); //deferral.Complete(); //return; return(null); } else { if (shoutcastStream.serverSettings.RequestSongMetdata) { metadataPos += sampleLength; } } } return(sample); }