AecInFifo Class Reference

AEC input buffer fifo. More...

#include <WaVQE.h>

List of all members.

Public Member Functions
	AecInFifo (int numBufs, int bufLen, int numChan)
	Create input fifo.
	~AecInFifo ()
	destructor
bool	WriteBuf (float *p)
	Write buffer to fifo.
bool	ReadBuf (float *p)
	Read buffer from fifo.
float *	GetReadBuf ()
	Return pointer to read buffer.
float *	GetLastReadBuf ()
	Return pointer to last read buffer, for repeating.
int	GetCount ()
	Return count of buffers in fifo.
int	GetSize ()
	Return capacity of fifo in buffers.
void	Reset ()
	Reset (empty) the fifo.
Protected Attributes
float *	buf
	FIFO of input buffers, length = bufLenSamps * numBufs.
int	bufLen
	buffer length in sample frames
int	numChan
	number channels
int	bufLenSamps
	individual buffer length in samps
int	numBufs
	allocated capacity in buffers
int	readIndex
	current read buffer index
int	writeIndex
	current write buffer index
int	count
	number buffers stored

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Detailed Description

AEC input buffer fifo.

The AecInFifo holds an integer number of buffers. It is used for buffer synchronization, so that the buffers passed to the aec algorithm have a constant I/O delay. The AecInFifo also allows for bursts of multiple input and output device callbacks.

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Constructor & Destructor Documentation

AecInFifo::AecInFifo	(	int	numBufs,
		int	bufLen,
		int	numChan
	)

Create input fifo.

Parameters:

[in]	numBufs	number of buffers to allocate
[in]	bufLen	length of each buffer in sample frames
[in]	numChan	number of channels

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Member Function Documentation

bool AecInFifo::ReadBuf

(

float *

p

)

Read buffer from fifo.

Parameters:

[out]

p

pointer to buffer

Copy samples from fifo to buffer. Return false if fifo empty, else true.

bool AecInFifo::WriteBuf

(

float *

p

)

Write buffer to fifo.

Parameters:

[in]

p

pointer to buf

Copy samples from buffer to fifo. Return false if fifo full, else true.

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

• WaVQE.h
• WaVQE.cpp