/// <summary>
/// (Re)Start the transmission pipeline, getting to a state where we *can* send voice (but aren't yet)
/// </summary>
private void RestartTransmissionPipeline(string reason)
{
Log.Debug("Restarting transmission pipeline: '{0}'", reason);
StopTransmissionPipeline();
//Clear the flag for requesting an explicit reset.
//We're about to apply a reset so the request will be satisfied.
_pendingResetRequest = false;
//No point starting a transmission pipeline if the network is not a client
if (_network == null || !_network.Mode.IsClientEnabled())
{
return;
}
//Create new mic capture system
var format = _microphone.StartCapture(_micName);
//If we created a mic (can be null if e.g. there is no mic)
if (format != null)
{
//Close and re-open all channels, propogating this restart to the receiving end
_roomChannels.Refresh();
_playerChannels.Refresh();
//Create preprocessor and subscribe it to microphone (webrtc preprocessor always wants audio to drive VAD+AEC)
_preprocessor = CreatePreprocessor(format);
_preprocessor.UpstreamLatency = _microphone.Latency;
_preprocessor.Start();
_microphone.Subscribe(_preprocessor);
//Sub VAD listeners to preprocessor
for (var i = 0; i < _activationListeners.Count; i++)
{
_preprocessor.Subscribe(_activationListeners[i]);
}
//Sub audio listeners to the preprocessor output
for (var i = 0; i < _audioListeners.Count; i++)
{
var al = _audioListeners[i];
al.Reset();
_preprocessor.Subscribe(al);
}
//Create encoder (not yet subscribed to receive audio data, we'll do that later)
Log.AssertAndThrowPossibleBug(_network != null, "5F33336B-15B5-4A85-9B54-54352C74768E", "Network object is unexpectedly null");
_encoder = new EncoderPipeline(_preprocessor.OutputFormat, _codecSettingsLoader.CreateEncoder(), _network);
}
else
{
Log.Warn("Failed to start microphone capture; local voice transmission will be disabled.");
}
}
private void StartCapture()
{
if (_subscribed)
{
throw Log.CreatePossibleBugException("Cannot subscribe encoder to mic: already subscribed", "B1F845C2-3A9F-48F0-B9D2-4E5457CFDCB8");
}
Log.Debug("Subscribing encoder to microphone");
if (DebugSettings.Instance.EnableRecordingDiagnostics && DebugSettings.Instance.RecordEncoderPipelineInputAudio)
{
var filename = string.Format("Dissonance_Diagnostics/EncoderPipelineInput_{0}", DateTime.UtcNow.ToFileTime());
_microphoneDiagnosticOutput = new AudioFileWriter(filename, _inputFormat);
}
if (DebugSettings.Instance.EnableRecordingDiagnostics && DebugSettings.Instance.RecordEncoderPipelineOutputAudio)
{
var filename = string.Format("Dissonance_Diagnostics/EncoderPipelineOutput_{0}", DateTime.UtcNow.ToFileTime());
_preEncodeDiagnosticOutput = new AudioFileWriter(filename, _output.WaveFormat);
}
_mic.Subscribe(this);
_subscribed = true;
}
/// <summary>
/// (Re)Start the transmission pipeline, getting to a state where we *can* send voice (but aren't yet)
/// </summary>
private void RestartTransmissionPipeline(string reason)
{
Log.Debug("Restarting transmission pipeline: '{0}'", reason);
StopTransmissionPipeline();
//If capture has been specifically disabled, exit out of starting it
if (_encounteredFatalException)
{
return;
}
#if !NCRUNCH
Profiler.BeginSample("CapturePipelineManager: RestartTransmissionPipeline");
#endif
try
{
//Clear the flag for requesting an explicit reset.
//We're about to apply a reset so the request will be satisfied.
_pendingResetRequest = false;
//No point starting a transmission pipeline if the network is not a client
if (_network == null || !_network.Mode.IsClientEnabled())
{
return;
}
//Create new mic capture system
var format = _microphone.StartCapture(_micName);
//If we created a mic (can be null if e.g. there is no mic)
if (format != null)
{
//Close and re-open all channels, propogating this restart to the receiving end
_roomChannels.Refresh();
_playerChannels.Refresh();
//Create preprocessor and subscribe it to microphone (webrtc preprocessor always wants audio to drive VAD+AEC)
_preprocessor = CreatePreprocessor(format);
_preprocessor.UpstreamLatency = _microphone.Latency;
_preprocessor.Start();
_microphone.Subscribe(_preprocessor);
//Sub VAD listeners to preprocessor
for (var i = 0; i < _activationListeners.Count; i++)
{
_preprocessor.Subscribe(_activationListeners[i]);
}
//Sub audio listeners to the preprocessor output
for (var i = 0; i < _audioListeners.Count; i++)
{
var al = _audioListeners[i];
al.Reset();
_preprocessor.Subscribe(al);
}
//Create encoder (not yet subscribed to receive audio data, we'll do that later)
Log.AssertAndThrowPossibleBug(_network != null, "5F33336B-15B5-4A85-9B54-54352C74768E", "Network object is unexpectedly null");
_encoder = new EncoderPipeline(_preprocessor.OutputFormat, _codecSettingsLoader.CreateEncoder(), _network);
}
else
{
Log.Warn("Failed to start microphone capture; local voice transmission will be disabled.");
_cannotStartMic = true;
}
}
catch (Exception ex)
{
//We don't know what happened, but something went wrong. As a precaution kill the transmission pipeline (it will be restarted if necessary)
StopTransmissionPipeline();
Log.Error("Unexpected exception encountered starting microphone capture; local voice transmission will be disabled: {0}", ex);
_encounteredFatalException = true;
}
finally
{
#if !NCRUNCH
Profiler.EndSample();
#endif
}
}