NAudio.Wave.ResamplerDmoStream Class Reference

Wave Stream for converting between sample rates. More...

Inheritance diagram for NAudio.Wave.ResamplerDmoStream:

Collaboration diagram for NAudio.Wave.ResamplerDmoStream:

Public Member Functions
	ResamplerDmoStream (IWaveProvider inputProvider, WaveFormat outputFormat)
	WaveStream to resample using the DMO Resampler.
override int	Read (byte[] buffer, int offset, int count)
	Reads a specified number of bytes from the input stream and writes them to the buffer.
Public Member Functions inherited from NAudio.Wave.WaveStream
override void	Flush ()
	Flushes the buffer of the current stream and causes any buffered data to be written to the underlying device.
override long	Seek (long offset, SeekOrigin origin)
	Sets the position within the current stream.
override void	SetLength (long length)
	Throws a NotSupportedException with the message "Can't set length of a WaveFormatString".
override void	Write (byte[] buffer, int offset, int count)
	Throws a NotSupportedException with the message "Can't write to a WaveFormatString".
void	Skip (int seconds)
	Skips the playback to a new position in the audio file based on the specified number of seconds.
virtual bool	HasData (int count)
	Checks if there is data available at the current position.

Protected Member Functions
override void	Dispose (bool disposing)
	Releases the unmanaged resources used by the T:System.Media.DmoResampler and optionally releases the managed resources.

Properties
override WaveFormat	WaveFormat [get]
	Stream Wave Format.
override long	Length [get]
	Stream length in bytes.
override long	Position [get, set]
	Stream position in bytes.
Properties inherited from NAudio.Wave.WaveStream
WaveFormat	WaveFormat [get]
	Retrieves the WaveFormat for this stream.
override bool	CanRead [get]
	We can read from this stream.
override bool	CanSeek [get]
	We can seek within this stream.
override bool	CanWrite [get]
	We can't write to this stream.
virtual int	BlockAlign [get]
	The block alignment for this wavestream. Do not modify the Position to anything that is not a whole multiple of this value.
virtual TimeSpan	CurrentTime [get, set]
	The current position in the stream in Time format.
virtual TimeSpan	TotalTime [get]
	Total length in real-time of the stream (may be an estimate for compressed files)
Properties inherited from NAudio.Wave.IWaveProvider

Private Member Functions
long	InputToOutputPosition (long inputPosition)
	Converts the input position to the corresponding output position based on the ratio of average bytes per second between input and output formats.
long	OutputToInputPosition (long outputPosition)
	Converts the output position to the corresponding input position based on the audio format ratios.

Private Attributes
readonly IWaveProvider	inputProvider
readonly WaveStream	inputStream
readonly WaveFormat	outputFormat
DmoOutputDataBuffer	outputBuffer
DmoResampler	dmoResampler
MediaBuffer	inputMediaBuffer
long	position

Detailed Description

Wave Stream for converting between sample rates.

Constructor & Destructor Documentation

ResamplerDmoStream()

NAudio.Wave.ResamplerDmoStream.ResamplerDmoStream ( IWaveProvider inputProvider, WaveFormat outputFormat )

inline

WaveStream to resample using the DMO Resampler.

Parameters

inputProvider	Input Stream
outputFormat	Desired Output Format

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Member Function Documentation

Dispose()

override void NAudio.Wave.ResamplerDmoStream.Dispose ( bool disposing )

inlineprotected

Releases the unmanaged resources used by the T:System.Media.DmoResampler and optionally releases the managed resources.

Parameters

disposing

true to release both managed and unmanaged resources; false to release only unmanaged resources.

This method disposes the input media buffer if it is not null and sets it to null. It disposes the output buffer. If the DMO resampler is not null, it sets it to null.

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InputToOutputPosition()

long NAudio.Wave.ResamplerDmoStream.InputToOutputPosition ( long inputPosition )

inlineprivate

Converts the input position to the corresponding output position based on the ratio of average bytes per second between input and output formats.

Parameters

inputPosition

The input position to be converted.

Returns

The corresponding output position calculated based on the ratio of average bytes per second between input and output formats.

This method calculates the output position by multiplying the input position with the ratio of average bytes per second between the output format and the input provider's wave format. If the calculated output position is not aligned with the output format's block align, it is adjusted to the nearest aligned position.

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OutputToInputPosition()

long NAudio.Wave.ResamplerDmoStream.OutputToInputPosition ( long outputPosition )

inlineprivate

Converts the output position to the corresponding input position based on the audio format ratios.

Parameters

outputPosition

The output position for which the corresponding input position needs to be calculated.

Returns

The input position corresponding to the given outputPosition based on the audio format ratios.

This method calculates the input position based on the ratio of average bytes per second between the output and input audio formats. It then adjusts the input position to align with the block size of the input audio format if necessary.

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Read()

override int NAudio.Wave.ResamplerDmoStream.Read ( byte[] buffer, int offset, int count )

inline

Reads a specified number of bytes from the input stream and writes them to the buffer.

Parameters

buffer	The buffer to write the data to.
offset	The zero-based byte offset in buffer at which to begin storing the data read from the current stream.
count	The maximum number of bytes to read.

Returns

The total number of bytes read into the buffer. This might be less than the number of bytes requested if that number of bytes are not currently available, or zero if the end of the stream is reached.

This method reads data from the input stream and writes it to the buffer provided. It uses a DMO (DirectX Media Object) resampler to process the input data and provide output data. The method loops until the specified number of bytes have been read or until the end of the stream is reached. It modifies the position of the stream accordingly and returns the total number of bytes read into the buffer.

Implements NAudio.Wave.IWaveProvider.

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Member Data Documentation

dmoResampler

DmoResampler NAudio.Wave.ResamplerDmoStream.dmoResampler

private

inputMediaBuffer

MediaBuffer NAudio.Wave.ResamplerDmoStream.inputMediaBuffer

private

inputProvider

readonly IWaveProvider NAudio.Wave.ResamplerDmoStream.inputProvider

private

inputStream

readonly WaveStream NAudio.Wave.ResamplerDmoStream.inputStream

private

outputBuffer

DmoOutputDataBuffer NAudio.Wave.ResamplerDmoStream.outputBuffer

private

outputFormat

readonly WaveFormat NAudio.Wave.ResamplerDmoStream.outputFormat

private

position

long NAudio.Wave.ResamplerDmoStream.position

private

Property Documentation

Length

override long NAudio.Wave.ResamplerDmoStream.Length

get

Stream length in bytes.

Position

override long NAudio.Wave.ResamplerDmoStream.Position

getset

Stream position in bytes.

WaveFormat

override WaveFormat NAudio.Wave.ResamplerDmoStream.WaveFormat

get

Stream Wave Format.

Implements NAudio.Wave.IWaveProvider.

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The documentation for this class was generated from the following file:

• /Users/sumansaurabh/Documents/my-startup/xeno-rat/Plugins/LiveMicrophone/lib/NAudio.Wasapi/ResamplerDmoStream.cs