private void CreateRepositionTestFile(string saveFile, IWaveProvider source, Action reposition)
{
using (var writer = new WaveFileWriter(saveFile, source.WaveFormat))
{
// half-second buffer
var buffer = new byte[writer.WaveFormat.AverageBytesPerSecond / 2];
// read three and a half seconds (half a second is to ensure Resampler has some leftovers to drain)
for (int n = 0; n < 7; n++)
{
var read = source.Read(buffer, 0, buffer.Length);
writer.Write(buffer, 0, read);
}
Array.Clear(buffer, 0, buffer.Length);
// two seconds of absolute silence
for (int n = 0; n < 4; n++)
{
writer.Write(buffer, 0, buffer.Length);
}
// do the reposition
reposition();
// now read some more out
for (int n = 0; n < 6; n++)
{
var read = source.Read(buffer, 0, buffer.Length);
writer.Write(buffer, 0, read);
}
}
}
private long ConvertOneBuffer(IMFSinkWriter writer, int streamIndex, IWaveProvider inputProvider, long position, byte[] managedBuffer, int seconds, ref bool flag)
{
long durationConverted = 0;
int maxLength;
IMFMediaBuffer buffer = MediaFoundationApi.CreateMemoryBuffer(managedBuffer.Length);
buffer.GetMaxLength(out maxLength);
IMFSample sample = MediaFoundationApi.CreateSample();
sample.AddBuffer(buffer);
IntPtr ptr;
int currentLength;
buffer.Lock(out ptr, out maxLength, out currentLength);
int oneLength = inputProvider.WaveFormat.AverageBytesPerSecond;
int read = 0;
if (flag)
{
for (int i = 0; i < seconds; i++)
{
read = inputProvider.Read(managedBuffer, 0, oneLength);
}
flag = false;
}
else
{
read = inputProvider.Read(managedBuffer, 0, oneLength);
}
if (read > 0)
{
durationConverted = BytesToNsPosition(read, inputProvider.WaveFormat);
Marshal.Copy(managedBuffer, 0, ptr, read);
buffer.SetCurrentLength(read);
buffer.Unlock();
sample.SetSampleTime(position);
sample.SetSampleDuration(durationConverted);
writer.WriteSample(streamIndex, sample);
//writer.Flush(streamIndex);
}
else
{
buffer.Unlock();
}
Marshal.ReleaseComObject(sample);
Marshal.ReleaseComObject(buffer);
return(durationConverted);
}
/// <summary>
/// Creates a Wave file by reading all the data from a WaveProvider
/// BEWARE: the WaveProvider MUST return 0 from its Read method when it is finished,
/// or the Wave File will grow indefinitely.
/// </summary>
/// <param name="filename">The filename to use</param>
/// <param name="sourceProvider">The source WaveProvider</param>
public static async Task CreateWaveFileAsync(string filename, IWaveProvider sourceProvider)
{
StorageFile fileOperation = await StorageFile.GetFileFromPathAsync(filename);
Stream fileStream = await fileOperation.OpenStreamForWriteAsync();
using (var writer = new WaveFileWriterRT(fileStream, sourceProvider.WaveFormat))
{
writer.filename = filename;
long outputLength = 0;
var buffer = new byte[sourceProvider.WaveFormat.AverageBytesPerSecond * 4];
while (true)
{
int bytesRead = sourceProvider.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
{
// end of source provider
break;
}
outputLength += bytesRead;
// Write will throw exception if WAV file becomes too large
writer.Write(buffer, 0, bytesRead);
}
}
}
private void FillBuffer(IWaveProvider playbackProvider, int frameCount)
{
var buffer = renderClient.GetBuffer(frameCount);
var readLength = frameCount * bytesPerFrame;
int read = playbackProvider.Read(readBuffer, 0, readLength);
if (read == 0)
{
playbackState = PlaybackState.Stopped;
}
Marshal.Copy(readBuffer, 0, buffer, read);
if (this.isUsingEventSync && this.shareMode == AudioClientShareMode.Exclusive)
{
renderClient.ReleaseBuffer(frameCount, AudioClientBufferFlags.None);
}
else
{
int actualFrameCount = read / bytesPerFrame;
/*if (actualFrameCount != frameCount)
* {
* Debug.WriteLine(String.Format("WASAPI wanted {0} frames, supplied {1}", frameCount, actualFrameCount ));
* }*/
renderClient.ReleaseBuffer(actualFrameCount, AudioClientBufferFlags.None);
}
}
public override int Read(byte[] buffer, int offset, int count)
{
int read = source.Read(buffer, offset, count);
position += read;
return(read);
}
/// <summary>
/// Read simply returns what the source returns, but writes to disk along the way
/// </summary>
public int Read(byte[] buffer, int offset, int count)
{
int bytesRead = source.Read(buffer, offset, count);
writer.WriteData(buffer, offset, bytesRead);
return(bytesRead);
}
public void ProcessOutgoing(byte[] buffer, int count)
{
// give the input audio to the beginning of our audio graph
bufferStream.SetLatestInBuffer(buffer);
// process it out through the effects
int read = outputProvider.Read(buffer, 0, count);
}
/// <summary>
/// driver buffer update callback to fill the wave buffer.
/// </summary>
/// <param name="bufferChannels">The buffer channels.</param>
void driver_BufferUpdate(IntPtr[] bufferChannels)
{
// AsioDriver driver = sender as AsioDriver;
int read = sourceStream.Read(waveBuffer, 0, waveBuffer.Length);
if (read < waveBuffer.Length)
{
// we have stopped
}
// Call the convertor
unsafe
{
// TODO : check if it's better to lock the buffer at initialization?
fixed(void *pBuffer = &waveBuffer[0])
{
convertor(new IntPtr(pBuffer), bufferChannels, waveFormat.Channels, nbSamples);
}
}
if (read == 0)
{
Stop();
}
}
public int Read(byte[] buffer, int offset, int count)
{
int read = source.Read(buffer, offset, count);
if (Settings.GlobalSettingsStore.Instance.ProfileSettingsStore.GetClientSettingBool(ProfileSettingsKeys.NATOTone))
{
var effectBytes = GetEffect(read / 2);
//mix together
for (int i = 0; i < read / 2; i++)
{
short audio = ConversionHelpers.ToShort(buffer[(offset + i) * 2], buffer[((i + offset) * 2) + 1]);
audio = (short)(audio + _audioEffectShort[i]);
//buffer[i + offset] = effectBytes[i]+buffer[i + offset];
byte byte1;
byte byte2;
ConversionHelpers.FromShort(audio, out byte1, out byte2);
buffer[(offset + i) * 2] = byte1;
buffer[((i + offset) * 2) + 1] = byte2;
}
}
return(read);
}
private IMFSample ReadFromSource()
{
// we always read a full second
int bytesRead = sourceProvider.Read(sourceBuffer, 0, sourceBuffer.Length);
if (bytesRead == 0)
{
return(null);
}
var mediaBuffer = MediaFoundationApi.CreateMemoryBuffer(bytesRead);
IntPtr pBuffer;
int maxLength, currentLength;
mediaBuffer.Lock(out pBuffer, out maxLength, out currentLength);
Marshal.Copy(sourceBuffer, 0, pBuffer, bytesRead);
mediaBuffer.Unlock();
mediaBuffer.SetCurrentLength(bytesRead);
var sample = MediaFoundationApi.CreateSample();
sample.AddBuffer(mediaBuffer);
// we'll set the time, I don't think it is needed for Resampler, but other MFTs might need it
sample.SetSampleTime(inputPosition);
long duration = BytesToNsPosition(bytesRead, sourceProvider.WaveFormat);
sample.SetSampleDuration(duration);
inputPosition += duration;
Marshal.ReleaseComObject(mediaBuffer);
return(sample);
}
public void LoadNextChunk(IWaveProvider source, int samplePairsRequired)
{
int sourceBytesRequired = samplePairsRequired;
sourceBuffer = BufferHelpers.Ensure(sourceBuffer, sourceBytesRequired);
sourceBytes = source.Read(sourceBuffer, 0, sourceBytesRequired);
offset = 0;
}
public int Read(byte[] buffer, int offset, int count)
{
int perChannelCount = count / _totalChannels;
Array.Clear(buffer, offset, count);
_readBuffer = NAudio.Utils.BufferHelpers.Ensure(_readBuffer, perChannelCount);
int readCnt = _source.Read(_readBuffer, 0, perChannelCount);
int readIndex = 0;
int outIndex = offset;
int i, c;
while (readIndex < readCnt)
{
for (c = 0; c < _totalChannels; c++)
{
for (i = 0; i < _bytesPerSample; i++)
{
if (c % _totalChannels == _channelNum)
{
buffer[outIndex] = _readBuffer[readIndex];
readIndex++;
}
outIndex++;
}
}
}
return(readCnt * _totalChannels);
}
/// <summary>
/// driver buffer update callback to fill the wave buffer.
/// </summary>
/// <param name="inputChannels">The input channels.</param>
/// <param name="outputChannels">The output channels.</param>
void driver_BufferUpdate(IntPtr[] inputChannels, IntPtr[] outputChannels)
{
if (this.NumberOfInputChannels > 0)
{
var audioAvailable = AudioAvailable;
if (audioAvailable != null)
{
audioAvailable(this, new AsioAudioAvailableEventArgs(inputChannels, nbSamples, driver.Capabilities.InputChannelInfos[0].type));
}
}
if (this.NumberOfOutputChannels > 0)
{
int read = sourceStream.Read(waveBuffer, 0, waveBuffer.Length);
if (read < waveBuffer.Length)
{
// we have stopped
}
// Call the convertor
unsafe
{
// TODO : check if it's better to lock the buffer at initialization?
fixed(void *pBuffer = &waveBuffer[0])
{
convertor(new IntPtr(pBuffer), outputChannels, NumberOfOutputChannels, nbSamples);
}
}
if (read == 0)
{
Stop();
}
}
}
// Token: 0x06000945 RID: 2373 RVA: 0x0001B0A0 File Offset: 0x000192A0
private long ConvertOneBuffer(IMFSinkWriter writer, int streamIndex, IWaveProvider inputProvider, long position, byte[] managedBuffer)
{
long num = 0L;
IMFMediaBuffer imfmediaBuffer = MediaFoundationApi.CreateMemoryBuffer(managedBuffer.Length);
int count;
imfmediaBuffer.GetMaxLength(out count);
IMFSample imfsample = MediaFoundationApi.CreateSample();
imfsample.AddBuffer(imfmediaBuffer);
IntPtr destination;
int num2;
imfmediaBuffer.Lock(out destination, out count, out num2);
int num3 = inputProvider.Read(managedBuffer, 0, count);
if (num3 > 0)
{
num = MediaFoundationEncoder.BytesToNsPosition(num3, inputProvider.WaveFormat);
Marshal.Copy(managedBuffer, 0, destination, num3);
imfmediaBuffer.SetCurrentLength(num3);
imfmediaBuffer.Unlock();
imfsample.SetSampleTime(position);
imfsample.SetSampleDuration(num);
writer.WriteSample(streamIndex, imfsample);
}
else
{
imfmediaBuffer.Unlock();
}
Marshal.ReleaseComObject(imfsample);
Marshal.ReleaseComObject(imfmediaBuffer);
return(num);
}
private long ConvertOneBuffer(SinkWriter writer, int streamIndex, IWaveProvider inputProvider, long position, byte[] managedBuffer)
{
long durationConverted = 0;
using var buffer = MediaFactory.CreateMemoryBuffer(managedBuffer.Length);
using var sample = MediaFactory.CreateSample();
sample.AddBuffer(buffer);
var ptr = buffer.Lock(out int maxLength, out int currentLength);
int read = inputProvider.Read(managedBuffer, 0, maxLength);
if (read > 0)
{
durationConverted = BytesToNsPosition(read, inputProvider.WaveFormat);
Marshal.Copy(managedBuffer, 0, ptr, read);
buffer.CurrentLength = read;
buffer.Unlock();
sample.SampleTime = position;
sample.SampleDuration = durationConverted;
writer.WriteSample(streamIndex, sample);
//writer.Flush(streamIndex);
}
else
{
buffer.Unlock();
}
return(durationConverted);
}
private Sample ReadFromSource()
{
// we always read a full second
int bytesRead = sourceProvider.Read(sourceBuffer, 0, sourceBuffer.Length);
if (bytesRead == 0)
{
return(null);
}
Sample sample;
using (var mediaBuffer = MediaFactory.CreateMemoryBuffer(bytesRead))
{
var pBuffer = mediaBuffer.Lock(out int maxLength, out int currentLength);
Marshal.Copy(sourceBuffer, 0, pBuffer, bytesRead);
mediaBuffer.Unlock();
mediaBuffer.CurrentLength = bytesRead;
sample = MediaFactory.CreateSample();
sample.AddBuffer(mediaBuffer);
// we'll set the time, I don't think it is needed for Resampler, but other MFTs might need it
sample.SampleTime = inputPosition;
long duration = BytesToNsPosition(bytesRead, sourceProvider.WaveFormat);
sample.SampleDuration = duration;
inputPosition += duration;
}
return(sample);
}
/// <summary>
/// Reads bytes from this wave stream
/// </summary>
/// <param name="destBuffer">The destination buffer</param>
/// <param name="offset">Offset into the destination buffer</param>
/// <param name="numBytes">Number of bytes read</param>
/// <returns>Number of bytes read.</returns>
public int Read(byte[] destBuffer, int offset, int numBytes)
{
int sourceBytesRequired = numBytes * 2;
byte[] sourceBuffer = GetSourceBuffer(sourceBytesRequired);
int sourceBytesRead = sourceProvider.Read(sourceBuffer, 0, sourceBytesRequired);
WaveBuffer sourceWaveBuffer = new WaveBuffer(sourceBuffer);
WaveBuffer destWaveBuffer = new WaveBuffer(destBuffer);
int sourceSamples = sourceBytesRead / 4;
int destOffset = offset / 2;
for (int sample = 0; sample < sourceSamples; sample++)
{
// adjust volume
float sample32 = sourceWaveBuffer.FloatBuffer[sample] * volume;
// clip
if (sample32 > 1.0f)
{
sample32 = 1.0f;
}
if (sample32 < -1.0f)
{
sample32 = -1.0f;
}
destWaveBuffer.ShortBuffer[destOffset++] = (short)(sample32 * 32767);
}
return(sourceSamples * 2);
}
/// <summary>
/// Reads bytes from this WaveProvider
/// </summary>
public int Read(byte[] buffer, int offset, int count)
{
int sourceBytesRequired = count * 2;
sourceBuffer = BufferHelpers.Ensure(sourceBuffer, sourceBytesRequired);
WaveBuffer sourceWaveBuffer = new WaveBuffer(sourceBuffer);
WaveBuffer destWaveBuffer = new WaveBuffer(buffer);
int sourceBytesRead = sourceProvider.Read(sourceBuffer, 0, sourceBytesRequired);
int samplesRead = sourceBytesRead / 2;
int destOffset = offset / 2;
for (int sample = 0; sample < samplesRead; sample += 2)
{
short left = sourceWaveBuffer.ShortBuffer[sample];
short right = sourceWaveBuffer.ShortBuffer[sample + 1];
float outSample = (left * LeftVolume) + (right * RightVolume);
// hard limiting
if (outSample > Int16.MaxValue)
{
outSample = Int16.MaxValue;
}
if (outSample < Int16.MinValue)
{
outSample = Int16.MinValue;
}
destWaveBuffer.ShortBuffer[destOffset++] = (short)outSample;
}
return(sourceBytesRead / 2);
}
/*
* public void AddSamples(byte[] buffer, int offset, int count)
* {
* int BytesPerSample = WaveFormat.BitsPerSample / 8; // 共有モードは32bit固定っぽい
* int nChannels = WaveFormat.Channels; //
* int dst_id = 0;
* int dst_count = (int)(count * ratio);
* double rraito = 1.0 / ratio;
* double src_frame = 0;
*
* while(dst_id < dst_count)
* {
* int sr_id_tmp = offset + (int)src_frame * BytesPerSample * nChannels;
*
* for (var j = 0; j < nChannels; ++j)
* {
* Array.Copy(buffer, sr_id_tmp, TempBuffer, dst_id, BytesPerSample);
* dst_id += BytesPerSample;
* sr_id_tmp += BytesPerSample;
* }
* src_frame += rraito;
* }
* BufferedProvider.AddSamples(TempBuffer, 0, dst_count);
* }
*/
/// <summary>
/// リサンプリングしながらbufferに書き込む
/// </summary>
/// <param name="buffer"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
/// <returns>num read bytes.</returns>
public int Read(byte[] buffer, int offset, int count)
{
double rratio = 1.0 / ratio;
double src_frame = 0;
byte[] src = TempBuffer;
int BytesPerSample = WaveFormat.BitsPerSample / 8; // 共有モードは32bit固定っぽい
int BlockAlign = WaveFormat.BlockAlign;
int dst_id = offset;
int src_count_tmp = (int)Math.Ceiling(count * rratio) / BytesPerSample * BytesPerSample;
int src_count = InputProvider.Read(src, 0, src_count_tmp);
int dst_count = count * src_count / src_count_tmp + offset;
while (dst_id < dst_count)
{
int src_id_tmp = offset + (int)src_frame * BlockAlign;
Array.Copy(src, src_id_tmp, buffer, dst_id, BlockAlign);
dst_id += BlockAlign;
src_frame += rratio;
}
return(dst_count);
}
/// <summary>
/// driver buffer update callback to fill the wave buffer.
/// </summary>
/// <param name="inputChannels">The input channels.</param>
/// <param name="outputChannels">The output channels.</param>
void driver_BufferUpdate(IntPtr[] inputChannels, IntPtr[] outputChannels)
{
if (this.NumberOfOutputChannels > 0)
{
int read = sourceStream.Read(waveBuffer, 0, waveBuffer.Length);
if (read < waveBuffer.Length)
{
// we have stopped
}
// Call the convertor
unsafe
{
// TODO : check if it's better to lock the buffer at initialization?
fixed(void *pBuffer = &waveBuffer[0])
{
convertor(new IntPtr(pBuffer), outputChannels, NumberOfOutputChannels, nbSamples);
}
}
if (read == 0)
{
// do not call stop from inside, or the asioOut will not be disposed and never return error
// raising the auto stop from outside
RaisePlaybackStopped(null);
}
}
if (AudioAvailable != null)
{
var args = new MyAsioAudioAvailableEventArgs(inputChannels, outputChannels, nbSamples, driver.Capabilities.InputChannelInfos[0].type, driver.Capabilities.OutputChannelInfos[0].type);
AudioAvailable(this, args);
}
}
void ProcessAudio(ProcessBuffer processingChunk)
{
if (_playbackState != PlaybackState.Playing)
{
return;
}
int bufferCount = processingChunk.AudioOut.Length;
if (bufferCount == 0)
{
return;
}
int bufferSize = processingChunk.Frames;
int floatsCount = bufferCount * bufferSize;
int bytesCount = floatsCount * sizeof(float);
byte[] fromWave = new byte[bytesCount];
_waveStream.Read(fromWave, 0, bytesCount);
float[] interlacedSamples = new float[floatsCount];
Buffer.BlockCopy(fromWave, 0, interlacedSamples, 0, bytesCount);
for (int i = 0; i < floatsCount; i++)
{
interlacedSamples [i] = interlacedSamples [i] * _volume;
}
BufferOperations.DeinterlaceAudio(interlacedSamples, processingChunk.AudioOut, bufferSize, bufferCount);
}
private void FillBuffer(IWaveProvider playbackProvider, int frameCount)
{
var buffer = renderClient.GetBuffer(frameCount);
var readLength = frameCount * bytesPerFrame;
int actualFrameCount = 0;
if (playbackState == PlaybackState.Paused)
{
byte[] rb = new byte[readLength];
Marshal.Copy(rb, 0, buffer, readLength);
actualFrameCount = readLength / bytesPerFrame;
}
else if (playbackState == PlaybackState.Playing)
{
int read = playbackProvider.Read(readBuffer, 0, readLength);
if (read == 0)
{
playbackState = PlaybackState.Stopped;
PlaybackStopped?.Invoke(this, new StoppedEventArgs());
}
Marshal.Copy(readBuffer, 0, buffer, read);
actualFrameCount = read / bytesPerFrame;
/*if (actualFrameCount != frameCount)
* {
* Debug.WriteLine(String.Format("WASAPI wanted {0} frames, supplied {1}", frameCount, actualFrameCount ));
* }*/
}
renderClient.ReleaseBuffer(actualFrameCount, AudioClientBufferFlags.None);
}
public void LoadNextChunk(IWaveProvider source, int samplePairsRequired)
{
int sourceBytesRequired = samplePairsRequired * 6;
sourceBuffer = GetSourceBuffer(sourceBytesRequired);
sourceBytes = source.Read(sourceBuffer, 0, sourceBytesRequired);
offset = 0;
}
public SoundPlayer(SoundDevice device, SoundSettings settings)
{
_soundSettings = settings;
_inputDevice = device.Device;
if (_inputDevice.DataFlow == DataFlow.Render)
{
_capture = new WasapiLoopbackCapture(_inputDevice)
{
ShareMode = AudioClientShareMode.Shared
};
_log.Debug($"Initialized WasapiLoopbackCapture for device {_inputDevice.FriendlyName} of type {_inputDevice.DataFlow}. ShareMode: {_capture.ShareMode}, State: {_inputDevice.State}");
_log.Debug($"Capturing in format: {_capture.WaveFormat} {_capture.WaveFormat.BitsPerSample}bit {_capture.WaveFormat.SampleRate}Hz {_capture.WaveFormat.Channels} channels");
_captureProvider = new WaveInProvider(_capture);
_remoteOutput = new DefaultResampler(_capture.WaveFormat).Resample(_captureProvider);
_remoteBuffer = new BufferedWaveProvider(SoundSettings.DiscordFormat);
_capture.DataAvailable += (s, e) => { _remoteOutput.Read(buf, 0, e.BytesRecorded / 2); _remoteBuffer.AddSamples(buf, 0, e.BytesRecorded / 2); };
}
else
{
_capture = new WasapiCapture(_inputDevice)
{
ShareMode = AudioClientShareMode.Shared
};
_log.Debug($"Initialized WasapiCapture for device {_inputDevice.FriendlyName} of type {_inputDevice.DataFlow}. ShareMode: {_capture.ShareMode}, State: {_inputDevice.State}.");
_log.Debug($"Capturing in format: {_capture.WaveFormat} {_capture.WaveFormat.BitsPerSample}bit {_capture.WaveFormat.SampleRate}Hz {_capture.WaveFormat.Channels} channels");
_captureProvider = new WaveInProvider(_capture);
_remoteOutput = new DefaultResampler(_capture.WaveFormat).Resample(_captureProvider);
var captureRate = _capture.WaveFormat.AverageBytesPerSecond;
var outputRate = SoundSettings.DiscordFormat.AverageBytesPerSecond;
_log.Info($"Capture rate is {captureRate}, output rate is {outputRate}, that gives a ratio of {(float)captureRate / (float)outputRate}");
_log.Debug($"Outputting in format: {_remoteOutput.WaveFormat} {_remoteOutput.WaveFormat.BitsPerSample}bit {_remoteOutput.WaveFormat.SampleRate}Hz {_remoteOutput.WaveFormat.Channels} channels");
var rate = (float)SoundSettings.DiscordFormat.AverageBytesPerSecond / _capture.WaveFormat.AverageBytesPerSecond;
_remoteBuffer = new BufferedWaveProvider(_remoteOutput.WaveFormat);
_capture.DataAvailable += (s, e) => { _remoteOutput.Read(buf, 0, (int)Math.Round(e.BytesRecorded * rate)); _remoteBuffer.AddSamples(buf, 0, (int)Math.Round(e.BytesRecorded * rate)); };
}
if (_soundSettings.PlayLocally)
{
_localOutput = new WasapiOut();
_localBuffer = new BufferedWaveProvider(_remoteOutput.WaveFormat);
_localOutput.Init(_localBuffer);
_capture.DataAvailable += (s, e) => { _localBuffer.AddSamples(buf, 0, e.BytesRecorded / 2); };
}
}
public void LoadNextChunk(IWaveProvider source, int samplePairsRequired)
{
int sourceBytesRequired = samplePairsRequired * 4;
sourceBuffer = GetSourceBuffer(sourceBytesRequired);
sourceWaveBuffer = new WaveBuffer(sourceBuffer);
sourceSamples = source.Read(sourceBuffer, 0, sourceBytesRequired) / 2;
sourceSample = 0;
}
public void LoadNextChunk(IWaveProvider source, int samplePairsRequired)
{
int sourceBytesRequired = samplePairsRequired * 2;
sourceSample = 0;
sourceBuffer = BufferHelpers.Ensure(sourceBuffer, sourceBytesRequired);
sourceWaveBuffer = new WaveBuffer(sourceBuffer);
sourceSamples = source.Read(sourceBuffer, 0, sourceBytesRequired) / 2;
}
public void LoadNextChunk(IWaveProvider source, int samplePairsRequired)
{
int sourceBytesRequired = samplePairsRequired * 2;
sourceBuffer = GetSourceBuffer(sourceBytesRequired);
sourceBytes = source.Read(sourceBuffer, 0, sourceBytesRequired);
offset = 0;
}
public void LoadNextChunk(IWaveProvider source, int samplePairsRequired)
{
int sourceBytesRequired = samplePairsRequired;
sourceBuffer = BufferHelpers.Ensure(sourceBuffer, sourceBytesRequired);
sourceBytes = source.Read(sourceBuffer, 0, sourceBytesRequired);
offset = 0;
}
public void LoadNextChunk(IWaveProvider source, int samplePairsRequired)
{
int num = samplePairsRequired * 6;
this.sourceBuffer = BufferHelpers.Ensure(this.sourceBuffer, num);
this.sourceBytes = source.Read(this.sourceBuffer, 0, num);
this.offset = 0;
}
/// <summary>
/// Event handler to capture waspi device and convert to pcm16.
/// </summary>
/// <remarks>
/// see also: https://qiita.com/zufall/items/2e027a2bc996864fe4af
/// </remarks>
/// <param name="sender"></param>
/// <param name="eventArgs"></param>
private void WaspiDataAvailable(object sender, WaveInEventArgs eventArgs)
{
if (eventArgs.BytesRecorded == 0)
{
ResampledDataAvailable?.Invoke(this, new byte[0]);
ResampledMaxValueAvailable?.Invoke(this, 0);
return;
}
using (var memStream = new MemoryStream(eventArgs.Buffer, 0, eventArgs.BytesRecorded))
{
using (var inputStream = new RawSourceWaveStream(memStream, capture.WaveFormat))
{
var sampleStream = new WaveToSampleProvider(inputStream);
var resamplingProvider = new WdlResamplingSampleProvider(sampleStream, TargetWaveFormat.SampleRate);
var pcmProvider = new SampleToWaveProvider16(resamplingProvider);
IWaveProvider targetProvider = pcmProvider;
if (capture.WaveFormat.Channels == 2)
{
var stereoToMonoProvider = new StereoToMonoProvider16(pcmProvider);
stereoToMonoProvider.RightVolume = 0.5f;
stereoToMonoProvider.LeftVolume = 0.5f;
targetProvider = stereoToMonoProvider;
}
byte[] buffer = new byte[eventArgs.BytesRecorded];
var outputStream = new MemoryStream();
int readBytes;
int writeBytes = 0;
while ((readBytes = targetProvider.Read(buffer, 0, eventArgs.BytesRecorded)) > 0)
{
outputStream.Write(buffer, 0, readBytes);
writeBytes += readBytes;
}
var aryOutputStream = outputStream.ToArray();
ResampledDataAvailable?.Invoke(this, aryOutputStream);
float max = 0;
var tempBuffer = new WaveBuffer(aryOutputStream);
for (int index = 0; index < aryOutputStream.Length / 2; index++)
{
var sample = (double)tempBuffer.ShortBuffer[index];
// absolute value
if (sample < 0.0)
{
sample = -sample;
}
// is this the max value?
if (sample > max)
{
max = (float)sample;
}
}
ResampledMaxValueAvailable?.Invoke(this, max);
}
}
}
public void LoadNextChunk(IWaveProvider source, int samplePairsRequired)
{
int sourceBytesRequired = samplePairsRequired * 4;
sourceBuffer = GetSourceBuffer(sourceBytesRequired);
sourceWaveBuffer = new WaveBuffer(sourceBuffer);
sourceSamples = source.Read(sourceBuffer, 0, sourceBytesRequired) / 2;
sourceSample = 0;
}
public void LoadNextChunk(IWaveProvider source, int samplePairsRequired)
{
int sourceBytesRequired = samplePairsRequired * 8;
sourceBuffer = BufferHelpers.Ensure(sourceBuffer, sourceBytesRequired);
sourceWaveBuffer = new WaveBuffer(sourceBuffer);
sourceSamples = source.Read(sourceBuffer, 0, sourceBytesRequired) / 4;
sourceSample = 0;
}
public void LoadNextChunk(IWaveProvider source, int samplePairsRequired)
{
int num = samplePairsRequired * 2;
this.sourceSample = 0;
this.sourceBuffer = BufferHelpers.Ensure(this.sourceBuffer, num);
this.sourceWaveBuffer = new WaveBuffer(this.sourceBuffer);
this.sourceSamples = source.Read(this.sourceBuffer, 0, num) / 2;
}
/// <summary>
/// Read simply returns what the source returns, but writes to disk along the way
/// </summary>
public int Read(byte[] buffer, int offset, int count)
{
int bytesRead = source.Read(buffer, offset, count);
#pragma warning disable CS0618 // 형식 또는 멤버는 사용되지 않습니다.
writer.WriteData(buffer, offset, bytesRead);
#pragma warning restore CS0618 // 형식 또는 멤버는 사용되지 않습니다.
return(bytesRead);
}
/// <summary>
/// Creates a Wave file by reading all the data from a WaveProvider
/// BEWARE: the WaveProvider MUST return 0 from its Read method when it is finished,
/// or the Wave File will grow indefinitely.
/// </summary>
/// <param name="filename">The filename to use</param>
/// <param name="sourceProvider">The source WaveProvider</param>
public static void CreateWaveFile(string filename, IWaveProvider sourceProvider)
{
using (WaveFileWriter writer = new WaveFileWriter(filename, sourceProvider.WaveFormat))
{
byte[] buffer = new byte[sourceProvider.WaveFormat.AverageBytesPerSecond * 4];
while (true)
{
int bytesRead = sourceProvider.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
break;
writer.Write(buffer, 0, bytesRead);
}
}
}
/// <summary>
/// Creates a Wave file by reading all the data from a WaveProvider
/// BEWARE: the WaveProvider MUST return 0 from its Read method when it is finished,
/// or the Wave File will grow indefinitely.
/// </summary>
/// <param name="filename">The filename to use</param>
/// <param name="sourceProvider">The source WaveProvider</param>
public static void CreateWaveFile(string filename, IWaveProvider sourceProvider)
{
using (var writer = new WaveFileWriter(filename, sourceProvider.WaveFormat))
{
var buffer = new byte[sourceProvider.WaveFormat.AverageBytesPerSecond * 4];
while (true)
{
int bytesRead = sourceProvider.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
{
// end of source provider
break;
}
// Write will throw exception if WAV file becomes too large
writer.Write(buffer, 0, bytesRead);
}
}
}
public static void AppendWaveFile(string filename, IWaveProvider sourceProvider)
{
using (var writer = new WaveFileWriter(filename, sourceProvider.WaveFormat, FileMode.Append))
{
long outputLength = 0;
var buffer = new byte[sourceProvider.WaveFormat.AverageBytesPerSecond * 4];
while (true)
{
int bytesRead = sourceProvider.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
{
// end of source provider
break;
}
outputLength += bytesRead;
if (outputLength > Int32.MaxValue)
{
throw new InvalidOperationException("WAV File cannot be greater than 2GB. Check that sourceProvider is not an endless stream.");
}
writer.Write(buffer, 0, bytesRead);
}
}
}
internal static void CreateWaveFile(string filename, IWaveProvider sourceProvider, Action<long> progressCallback)
{
Debug.Assert(progressCallback != null);
using (var writer = new WaveFileWriter(filename, sourceProvider.WaveFormat))
{
long outputLength = 0;
var buffer = new byte[sourceProvider.WaveFormat.AverageBytesPerSecond * 4];
while (true)
{
int bytesRead = sourceProvider.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
{
// end of source provider
break;
}
outputLength += bytesRead;
// Write will throw exception if WAV file becomes too large
writer.Write(buffer, 0, bytesRead);
progressCallback(bytesRead);
}
}
}
/// <summary>
/// Creates a Wave file by reading all the data from a WaveProvider
/// BEWARE: the WaveProvider MUST return 0 from its Read method when it is finished,
/// or the Wave File will grow indefinitely.
/// </summary>
/// <param name="filename">The filename to use</param>
/// <param name="sourceProvider">The source WaveProvider</param>
public static async Task CreateWaveFileAsync(string filename, IWaveProvider sourceProvider)
{
StorageFile fileOperation = await StorageFile.GetFileFromPathAsync(filename);
Stream fileStream = await fileOperation.OpenStreamForWriteAsync();
using (var writer = new WaveFileWriterRT(fileStream, sourceProvider.WaveFormat))
{
writer.filename = filename;
long outputLength = 0;
var buffer = new byte[sourceProvider.WaveFormat.AverageBytesPerSecond * 4];
while (true)
{
int bytesRead = sourceProvider.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
{
// end of source provider
break;
}
outputLength += bytesRead;
// Write will throw exception if WAV file becomes too large
writer.Write(buffer, 0, bytesRead);
}
}
}
private long ConvertOneBuffer(IMFSinkWriter writer, int streamIndex, IWaveProvider inputProvider, long position, byte[] managedBuffer)
{
long durationConverted = 0;
int maxLength;
IMFMediaBuffer buffer = MediaFoundationApi.CreateMemoryBuffer(managedBuffer.Length);
buffer.GetMaxLength(out maxLength);
IMFSample sample = MediaFoundationApi.CreateSample();
sample.AddBuffer(buffer);
IntPtr ptr;
int currentLength;
buffer.Lock(out ptr, out maxLength, out currentLength);
int read = inputProvider.Read(managedBuffer, 0, maxLength);
if (read > 0)
{
durationConverted = BytesToNsPosition(read, inputProvider.WaveFormat);
Marshal.Copy(managedBuffer, 0, ptr, read);
buffer.SetCurrentLength(read);
buffer.Unlock();
sample.SetSampleTime(position);
sample.SetSampleDuration(durationConverted);
writer.WriteSample(streamIndex, sample);
//writer.Flush(streamIndex);
}
else
{
buffer.Unlock();
}
Marshal.ReleaseComObject(sample);
Marshal.ReleaseComObject(buffer);
return durationConverted;
}
private void FillBuffer(IWaveProvider playbackProvider, int frameCount)
{
IntPtr buffer = renderClient.GetBuffer(frameCount);
int readLength = frameCount*bytesPerFrame;
int read = playbackProvider.Read(readBuffer, 0, readLength);
if (read == 0)
{
playbackState = PlaybackState.Stopped;
}
Marshal.Copy(readBuffer, 0, buffer, read);
int actualFrameCount = read/bytesPerFrame;
/*if (actualFrameCount != frameCount)
{
Debug.WriteLine(String.Format("WASAPI wanted {0} frames, supplied {1}", frameCount, actualFrameCount ));
}*/
renderClient.ReleaseBuffer(actualFrameCount, AudioClientBufferFlags.None);
}
private void CreateRepositionTestFile(string saveFile, IWaveProvider source, Action reposition)
{
using (var writer = new WaveFileWriter(saveFile, source.WaveFormat))
{
// half-second buffer
var buffer = new byte[writer.WaveFormat.AverageBytesPerSecond / 2];
// read three and a half seconds (half a second is to ensure Resampler has some leftovers to drain)
for (int n = 0; n < 7; n++)
{
var read = source.Read(buffer, 0, buffer.Length);
writer.Write(buffer, 0, read);
}
Array.Clear(buffer, 0, buffer.Length);
// two seconds of absolute silence
for (int n = 0; n < 4; n++)
{
writer.Write(buffer, 0, buffer.Length);
}
// do the reposition
reposition();
// now read some more out
for (int n = 0; n < 6; n++)
{
var read = source.Read(buffer, 0, buffer.Length);
writer.Write(buffer, 0, read);
}
}
}