private void SetFilterPreprocessor(IntPtr preprocessor)
{
using (var handle = _handle.Lock())
{
if (handle.Value == IntPtr.Zero)
{
throw Log.CreatePossibleBugException("Attempted to access a null WebRtc Preprocessor encoder", "3BA66D46-A7A6-41E8-BE38-52AFE5212ACD");
}
Log.Debug("Exchanging preprocessor instance in playback filter...");
if (!AudioPluginDissonanceNative.Dissonance_PreprocessorExchangeInstance(IntPtr.Zero, handle.Value))
{
throw Log.CreatePossibleBugException("Cannot associate preprocessor with Playback filter - one already exists", "D5862DD2-B44E-4605-8D1C-29DD2C72A70C");
}
Log.Debug("...Exchanged preprocessor instance in playback filter");
var state = (AudioPluginDissonanceNative.FilterState)AudioPluginDissonanceNative.Dissonance_GetFilterState();
if (state == AudioPluginDissonanceNative.FilterState.FilterNotRunning)
{
Log.Debug("Associated preprocessor with playback filter - but filter is not running");
}
Bind(s => s.DenoiseAmount, "DenoiseAmount", v => NoiseSuppressionLevel = (NoiseSuppressionLevels)v);
Bind(s => s.AecSuppressionAmount, "AecSuppressionAmount", v => AecSuppressionLevel = (AecSuppressionLevels)v);
Bind(s => s.AecmRoutingMode, "AecmRoutingMode", v => AecmSuppressionLevel = (AecmRoutingMode)v);
Bind(s => s.VadSensitivity, "VadSensitivity", v => VadSensitivityLevel = v);
}
}
private void ReleaseUnmanagedResources()
{
using (var handle = _handle.Lock())
{
if (handle.Value != IntPtr.Zero)
{
AudioPluginDissonanceNative.Dissonance_DestroyRnnoiseState(handle.Value);
handle.Value = IntPtr.Zero;
}
}
}
public int GetGains(float[] output)
{
using (var handle = _handle.Lock())
{
if (handle.Value == IntPtr.Zero)
{
return(0);
}
return(AudioPluginDissonanceNative.Dissonance_RnnoiseGetGains(handle.Value, output, output.Length));
}
}
private void ReleaseUnmanagedResources()
{
using (var handle = _handle.Lock())
{
if (handle.Value != IntPtr.Zero)
{
ClearFilterPreprocessor(throwOnError: false);
AudioPluginDissonanceNative.Dissonance_DestroyPreprocessor(handle.Value);
handle.Value = IntPtr.Zero;
}
}
}
public void Reset()
{
using (var handle = _handle.Lock())
{
Log.Debug("Resetting RnnoisePreprocessor");
if (handle.Value != IntPtr.Zero)
{
//Destroy it
AudioPluginDissonanceNative.Dissonance_DestroyRnnoiseState(handle.Value);
handle.Value = IntPtr.Zero;
}
//Create a new one
handle.Value = AudioPluginDissonanceNative.Dissonance_CreateRnnoiseState();
}
}
private IntPtr CreatePreprocessor()
{
var instance = VoiceSettings.Instance;
//Disable one of the echo cancellers, depending upon platform
var pcLevel = AecSuppressionLevel;
var mobLevel = AecmSuppressionLevel;
if (_useMobileAec)
{
pcLevel = AecSuppressionLevels.Disabled;
}
else
{
mobLevel = AecmRoutingMode.Disabled;
}
Log.Debug("Creating new preprocessor instance - Mob:{0} NS:{1} AEC:{2} DelayAg:{3} Ext:{4}, Refined:{5} Aecm:{6}, Comfort:{7}",
_useMobileAec,
NoiseSuppressionLevel,
pcLevel,
instance.AecDelayAgnostic,
instance.AecExtendedFilter,
instance.AecRefinedAdaptiveFilter,
mobLevel,
instance.AecmComfortNoise
);
var handle = AudioPluginDissonanceNative.Dissonance_CreatePreprocessor(
NoiseSuppressionLevel,
pcLevel,
instance.AecDelayAgnostic,
instance.AecExtendedFilter,
instance.AecRefinedAdaptiveFilter,
mobLevel,
instance.AecmComfortNoise
);
AudioPluginDissonanceNative.Dissonance_ConfigureVadSensitivity(handle, instance.VadSensitivity);
return(handle);
}
public void Process(AudioPluginDissonanceNative.SampleRates inputSampleRate, float[] input, float[] output)
{
if (Enabled)
{
using (var handle = _handle.Lock())
{
if (handle.Value == IntPtr.Zero)
{
throw Log.CreatePossibleBugException("Attempted to access a null WebRtc Rnnoise", "1014ecad-f1cf-4377-a2cd-31e46df55b08");
}
// Allocate a temporary buffer to store the output of rnnoise
if (_temp == null || _temp.Length != output.Length)
{
_temp = new float[output.Length];
}
if (!AudioPluginDissonanceNative.Dissonance_RnnoiseProcessFrame(handle.Value, input.Length, (int)inputSampleRate, input, _temp))
{
Log.Warn("Dissonance_RnnoiseProcessFrame returned false");
}
// Linear crossfade between input(dry) and _temp(wet). This is a linear crossfade instead of an
// equal power crossfade because input and wet are very highly correlated in most cases. Also
// the AGC runs after this, so a slight drop in amplitude won't really matter.
var wetmix = _wetMix;
var drymix = 1 - wetmix;
for (var i = 0; i < input.Length; i++)
{
output[i] = input[i] * drymix + _temp[i] * wetmix;
}
}
}
else
{
if (input != output)
{
Array.Copy(input, output, input.Length);
}
}
}
public bool Process(AudioPluginDissonanceNative.SampleRates inputSampleRate, float[] input, float[] output, int estimatedStreamDelay, bool isOutputMuted)
{
using (var handle = _handle.Lock())
{
if (handle.Value == IntPtr.Zero)
{
throw Log.CreatePossibleBugException("Attempted to access a null WebRtc Preprocessor encoder", "5C97EF6A-353B-4B96-871F-1073746B5708");
}
AudioPluginDissonanceNative.Dissonance_SetAgcIsOutputMutedState(handle.Value, isOutputMuted);
Log.Trace("Set IsOutputMuted to `{0}`", isOutputMuted);
var result = AudioPluginDissonanceNative.Dissonance_PreprocessCaptureFrame(handle.Value, (int)inputSampleRate, input, output, estimatedStreamDelay);
if (result != AudioPluginDissonanceNative.ProcessorErrors.Ok)
{
throw Log.CreatePossibleBugException(string.Format("Preprocessor error: '{0}'", result), "0A89A5E7-F527-4856-BA01-5A19578C6D88");
}
return(AudioPluginDissonanceNative.Dissonance_GetVadSpeechState(handle.Value));
}
}
private bool ClearFilterPreprocessor(bool throwOnError = true)
{
using (var handle = _handle.Lock())
{
if (handle.Value == IntPtr.Zero)
{
throw Log.CreatePossibleBugException("Attempted to access a null WebRtc Preprocessor encoder", "2DBC7779-F1B9-45F2-9372-3268FD8D7EBA");
}
Log.Debug("Clearing preprocessor instance in playback filter...");
//Clear binding in native code
if (!AudioPluginDissonanceNative.Dissonance_PreprocessorExchangeInstance(handle.Value, IntPtr.Zero))
{
if (throwOnError)
{
throw Log.CreatePossibleBugException("Cannot clear preprocessor from Playback filter. Editor restart required!", "6323106A-04BD-4217-9ECA-6FD49BF04FF0");
}
else
{
Log.Error("Failed to clear preprocessor from playback filter. Editor restart required!", "CBC6D727-BE07-4073-AA5A-F750A0CC023D");
}
return(false);
}
//Clear event handlers from voice settings
var settings = VoiceSettings.Instance;
for (var i = 0; i < _subscribed.Count; i++)
{
settings.PropertyChanged -= _subscribed[i];
}
_subscribed.Clear();
Log.Debug("...Cleared preprocessor instance in playback filter");
return(true);
}
}
public void Reset()
{
using (var handle = _handle.Lock())
{
Log.Debug("Resetting WebRtcPreprocessor");
if (handle.Value != IntPtr.Zero)
{
//Clear from playback filter. This internally acquires a lock and will not complete until it is safe to (i.e. no one else is using the preprocessor concurrently).
ClearFilterPreprocessor();
//Destroy it
AudioPluginDissonanceNative.Dissonance_DestroyPreprocessor(handle.Value);
handle.Value = IntPtr.Zero;
}
//Create a new one
handle.Value = CreatePreprocessor();
//Associate with playback filter
SetFilterPreprocessor(handle.Value);
}
}
internal static AudioPluginDissonanceNative.FilterState GetAecFilterState()
{
return((AudioPluginDissonanceNative.FilterState)AudioPluginDissonanceNative.Dissonance_GetFilterState());
}