public MixingWriter(MixingSource mixer, int iSource)
{
this.m_settings = new Codecs.WAV.EncoderSettings(mixer.PCM);
this.mixer = mixer;
this.iSource = iSource;
this.samplePos = 0;
this.mixbuff = null;
this.volume = 1.0f;
}
/// <summary>
/// Creates a new WASAPI Output
/// </summary>
/// <param name="device">Device to use</param>
/// <param name="shareMode"></param>
/// <param name="useEventSync">true if sync is done with event. false use sleep.</param>
/// <param name="latency"></param>
public WasapiOut(MMDevice device, AudioClientShareMode shareMode, bool useEventSync, int latency, AudioPCMConfig pcm)
{
this.m_settings = new Codecs.WAV.EncoderSettings(pcm);
this.audioClient = device.AudioClient;
this.shareMode = shareMode;
this.isUsingEventSync = useEventSync;
this.latencyMilliseconds = latency;
this.outputFormat = new NAudio.Wave.WaveFormatExtensible(pcm.SampleRate, pcm.BitsPerSample, pcm.ChannelCount);
NAudio.Wave.WaveFormatExtensible closestSampleRateFormat;
if (!audioClient.IsFormatSupported(shareMode, outputFormat, out closestSampleRateFormat))
{
throw new NotSupportedException("PCM format mismatch");
}
Init();
bufferFrameCount = audioClient.BufferSize;
readBuffers = new AudioBuffer[2];
readBuffers[0] = new AudioBuffer(pcm, bufferFrameCount);
readBuffers[1] = new AudioBuffer(pcm, bufferFrameCount);
//if (this.shareMode == AudioClientShareMode.Exclusive)
// this.latencyMilliseconds = (int)(this.audioClient.DefaultDevicePeriod / 10000);
}
public LossyWAVWriter(IAudioDest audioDest, IAudioDest lwcdfDest, double quality, Codecs.WAV.EncoderSettings settings)
{
_audioDest = audioDest;
_lwcdfDest = lwcdfDest;
m_settings = settings;
if (_audioDest != null && _audioDest.Settings.PCM.BitsPerSample > Settings.PCM.BitsPerSample)
{
throw new Exception("audio parameters mismatch");
}
if (_lwcdfDest != null && _lwcdfDest.Settings.PCM.BitsPerSample != Settings.PCM.BitsPerSample)
{
throw new Exception("audio parameters mismatch");
}
int quality_integer = (int)Math.Floor(quality);
fft_analysis_string = new string[4] {
"0100010", "0110010", "0111010", "0111110"
};
bool[] quality_auto_fft32_on = { false, false, false, true, true, true, true, true, true, true, true };
double[] quality_noise_threshold_shifts = { 20, 16, 9, 6, 3, 0, -2.4, -4.8, -7.2, -9.6, -12 };
double[] quality_signal_to_noise_ratio = { -18, -22, -23.5, -23.5, -23.5, -25, -28, -31, -34, -37, -40 };
double[] quality_dynamic_minimum_bits_to_keep = { 2.5, 2.75, 3.00, 3.25, 3.50, 3.75, 4.0, 4.25, 4.5, 4.75, 5.00 };
double[] quality_maximum_clips_per_channel = { 3, 3, 3, 3, 2, 1, 0, 0, 0, 0, 0 };
this_analysis_number = 2;
impulse = quality_auto_fft32_on[quality_integer];
linkchannels = false;
noise_threshold_shift = Math.Round(interpolate_param(quality_noise_threshold_shifts, quality) * 1000) / 1000;
snr_value = Math.Round(interpolate_param(quality_signal_to_noise_ratio, quality) * 1000) / 1000;
dynamic_minimum_bits_to_keep = Math.Round(interpolate_param(quality_dynamic_minimum_bits_to_keep, quality) * 1000) / 1000;
maximum_clips_per_channel = (int)Math.Round(interpolate_param(quality_maximum_clips_per_channel, quality));
scaling_factor = 1.0;
shaping_factor = Math.Min(1, quality / 10);
shaping_is_on = shaping_factor > 0;
_audioBuffer = new AudioBuffer(Settings.PCM, 256);
}
public IcecastWriter(AudioPCMConfig pcm, IcecastSettingsData settings)
{
this.m_settings = new Codecs.WAV.EncoderSettings(pcm);
this.settings = settings;
}
