/// <summary>
/// Initializes a new instance of the <see cref="CircularWriteableBufferingSource"/> class.
/// </summary>
/// <param name="waveFormat">The WaveFormat of the source.</param>
/// <param name="bufferSize">Buffersize in bytes.</param>
public DirectStreamingSource(WaveFormat waveFormat, IAPU apu)
{
if (waveFormat == null) { throw new ArgumentNullException("waveFormat"); }
_waveFormat = waveFormat;
_streamingSource = apu;
MaxBufferSize = 88000;
}
public SimpleMixer(int channelCount, int sampleRate)
{
if (channelCount < 1)
throw new ArgumentOutOfRangeException("channelCount");
if (sampleRate < 1)
throw new ArgumentOutOfRangeException("sampleRate");
_waveFormat = new WaveFormat(sampleRate, 32, channelCount, AudioEncoding.IeeeFloat);
}
public NVorbisSource(Stream stream)
{
if (stream == null)
throw new ArgumentNullException("stream");
if(!stream.CanRead)
throw new ArgumentException("Stream is not readable.", "stream");
_stream = stream;
_vorbisReader = new VorbisReader(stream, false);
_waveFormat = new WaveFormat(_vorbisReader.SampleRate, 32, _vorbisReader.Channels, AudioEncoding.IeeeFloat);
}
public void Initialize(WaveFormat waveFormat)
{
if (_isInitialized)
throw new InvalidOperationException("Can't reuse SampleAnalyser.");
if (waveFormat == null)
throw new ArgumentNullException("waveFormat");
_peaks = new float[waveFormat.Channels, 2];
_waveFormat = waveFormat;
_isInitialized = true;
}
public MetronomeGenerator(double bpm, double frequency, double amplitude)
{
if (frequency <= 0)
throw new ArgumentOutOfRangeException("frequency");
if (amplitude < 0 || amplitude > 1)
throw new ArgumentOutOfRangeException("amplitude");
Frequency = frequency;
Amplitude = amplitude;
Bpm = bpm;
_waveFormat = new WaveFormat(44100, 32, 1, AudioEncoding.IeeeFloat);
}
/// <summary>
/// Initializes a new instance of the <see cref="CircularWriteableBufferingSource"/> class.
/// </summary>
/// <param name="waveFormat">The WaveFormat of the source.</param>
/// <param name="bufferSize">Buffersize in bytes.</param>
public CircularWriteableBufferingSource(WaveFormat waveFormat, int bufferSize, int latency)
{
if (waveFormat == null)
throw new ArgumentNullException("waveFormat");
if (bufferSize <= 0 || (bufferSize % waveFormat.BlockAlign) != 0)
throw new ArgumentException("Invalid bufferSize.");
MaxBufferSize = bufferSize;
_waveFormat = waveFormat;
_buffer = new byte[bufferSize];
Latency = latency;
LatencyInBytes = (int)_waveFormat.MillisecondsToBytes(latency);
}
public async Task <ActionResult <BestMatch> > PostWebM()
{
await using var ms = new MemoryStream();
await Request.Body.CopyToAsync(ms);
ms.Position = 0;
var ff = new CSCore.WaveFormat(48000, 16, 2, AudioEncoding.IeeeFloat);
var dr = new RawDataReader(ms, ff);
await using var outs = new MemoryStream();
dr.WriteToWaveStream(outs);
var bytes = outs.ToArray();
return(await MatchFingerprintAsWav(bytes));
}
public void StartRecordingDevice(MMDevice recordingDevice)
{
if (recordingDevice == null)
{
Console.WriteLine("No devices found.");
return;
}
StopRecording();
soundIn = new CSCore.SoundIn.WasapiLoopbackCapture()
{
Device = recordingDevice
};
soundIn.Initialize();
soundInSource = new SoundInSource(soundIn)
{
FillWithZeros = false
};
convertedSource = soundInSource.ChangeSampleRate(44100).ToSampleSource().ToWaveSource(16);
convertedSource = convertedSource.ToStereo();
soundInSource.DataAvailable += OnDataAvailable;
soundIn.Start();
waveFormat = convertedSource.WaveFormat;
buffer0 = new BufferBlock()
{
Data = new byte[convertedSource.WaveFormat.BytesPerSecond / 2]
};
buffer1 = new BufferBlock()
{
Data = new byte[convertedSource.WaveFormat.BytesPerSecond / 2]
};
enabled = true;
eventThread = new Thread(EventThread);
eventThread.Name = "Loopback Event Thread";
eventThread.IsBackground = true;
eventThread.Start(new WeakReference <LoopbackRecorder>(this));
}
private void ReloadAPU()
{
_apu = _gameboy.APU;
_waveFormat = new WaveFormat(_apu.SampleRate,
_apu.SampleSize * 8,
_apu.NumChannels);
_source = new DirectStreamingSource(_waveFormat, _apu);
_soundOut = GetSoundOut();
_soundOut.Initialize(_source);
_soundOut.Volume = 0.2f;
}
public static Guid SubTypeFromWaveFormat(WaveFormat waveFormat)
{
if (waveFormat == null)
throw new ArgumentNullException("waveFormat");
if (waveFormat is WaveFormatExtensible)
return ((WaveFormatExtensible)waveFormat).SubFormat;
else
{
return MediaTypes.MediaTypeFromEncoding(waveFormat.WaveFormatTag);
//todo: mp3, gsm,...?
}
}
/// <summary>
/// Returns the SubType-Guid of a <paramref name="waveFormat" />. If the specified <paramref name="waveFormat" /> does
/// not contain a SubType-Guid, the <see cref="WaveFormat.WaveFormatTag" /> gets converted to the equal SubType-Guid
/// using the <see cref="AudioSubTypes.SubTypeFromEncoding" /> method.
/// </summary>
/// <param name="waveFormat"><see cref="WaveFormat" /> which gets used to determine the SubType-Guid.</param>
/// <returns>SubType-Guid of the specified <paramref name="waveFormat" />.</returns>
public static Guid SubTypeFromWaveFormat(WaveFormat waveFormat)
{
if (waveFormat == null)
throw new ArgumentNullException("waveFormat");
if (waveFormat is WaveFormatExtensible)
return ((WaveFormatExtensible) waveFormat).SubFormat;
return AudioSubTypes.SubTypeFromEncoding(waveFormat.WaveFormatTag);
}
public WaveFormat(WaveFormat waveFormat, int sampleRate)
: this(sampleRate, waveFormat.BitsPerSample, waveFormat.Channels, waveFormat._encoding)
{
}
public override TimeSpan ToTimeSpan(WaveFormat waveFormat, long rawElements)
{
return TimeSpan.FromMilliseconds(waveFormat.BytesToMilliseconds(rawElements));
}
public override long ToRawElements(WaveFormat waveFormat, TimeSpan timeSpan)
{
return waveFormat.MillisecondsToBytes(timeSpan.TotalMilliseconds);
}
/// <summary> /// Converts raw elements to a <see cref="TimeSpan"/> value. The unit of these raw elements depends on the implementation. For more information, see <see cref="TimeConverter"/>. /// </summary> /// <param name="waveFormat">The <see cref="WaveFormat"/> of the source which gets used to convert the <paramref name="rawElements"/>. </param> /// <param name="rawElements">The raw elements to convert to a <see cref="TimeSpan"/>.</param> /// <returns>The <see cref="TimeSpan"/>.</returns> public abstract TimeSpan ToTimeSpan(WaveFormat waveFormat, long rawElements);
/// <summary> /// Converts a <see cref="TimeSpan"/> back to raw elements, a source works with. The unit of these raw elements depends on the implementation. For more information, see <see cref="TimeConverter"/>. /// </summary> /// <param name="waveFormat">The <see cref="WaveFormat"/> of the source which gets used to convert the <paramref name="timeSpan"/>.</param> /// <param name="timeSpan">The <see cref="TimeSpan"/> to convert to raw elements.</param> /// <returns>The converted <see cref="TimeSpan"/> in raw elements.</returns> public abstract long ToRawElements(WaveFormat waveFormat, TimeSpan timeSpan);