MHASignal::doublebuffer_t Class Reference

Double-buffering class. More...

Inheritance diagram for MHASignal::doublebuffer_t:

Public Member Functions
	doublebuffer_t (unsigned int nchannels_in, unsigned int nchannels_out, unsigned int outer_fragsize, unsigned int inner_fragsize)
	Constructor of double buffer. More...
virtual	~doublebuffer_t ()
mha_wave_t *	outer_process (mha_wave_t *s)
	Method to pass audio fragments into the inner layer. More...

Protected Member Functions
virtual mha_wave_t *	inner_process (mha_wave_t *s)=0
	Method to realize inner processing callback. More...

Private Member Functions
unsigned int	min (unsigned int a, unsigned int b)

Private Attributes
waveform_t	outer_out
mha_wave_t	this_outer_out
waveform_t	inner_in
waveform_t	inner_out
unsigned int	k_inner
unsigned int	k_outer
unsigned int	ch

Detailed Description

Double-buffering class.

This class has two layers: The outer layer, with an outer fragment size, and an inner layer, with its own fragment size. Data is passed into the inner layer through the doublebuffer_t::outr_process() callback. The pure virtual method doublebuffer_t::inner_process() is called whenever enough data is available.

Constructor & Destructor Documentation

doublebuffer_t()

MHASignal::doublebuffer_t::doublebuffer_t	(	unsigned int	nchannels_in,
		unsigned int	nchannels_out,
		unsigned int	outer_fragsize,
		unsigned int	inner_fragsize
	)

Constructor of double buffer.

Parameters

nchannels_in	Number of channels at the input (both layers).
nchannels_out	Number of channels at the output (both layers).
outer_fragsize	Fragment size of the outer layer (e.g., hardware fragment size)
inner_fragsize	Fragment size of the inner layer (e.g., software fragment size)

~doublebuffer_t()

MHASignal::doublebuffer_t::~doublebuffer_t ( )

virtual

Member Function Documentation

outer_process()

mha_wave_t * MHASignal::doublebuffer_t::outer_process

(

mha_wave_t *

s

)

Method to pass audio fragments into the inner layer.

Parameters

s	Pointer to input waveform fragment.

Returns

Pointer to output waveform fragment.

inner_process()

virtual mha_wave_t* MHASignal::doublebuffer_t::inner_process ( mha_wave_t *  s )

protectedpure virtual

Method to realize inner processing callback.

To be overwritten by derived classes.

Parameters

s	Pointer to input waveform fragment.

Returns

Pointer to output waveform fragment.

Implemented in db_t.

min()

unsigned int MHASignal::doublebuffer_t::min ( unsigned int  a, unsigned int  b  )

inlineprivate

Member Data Documentation

outer_out

waveform_t MHASignal::doublebuffer_t::outer_out

private

this_outer_out

mha_wave_t MHASignal::doublebuffer_t::this_outer_out

private

inner_in

waveform_t MHASignal::doublebuffer_t::inner_in

private

inner_out

waveform_t MHASignal::doublebuffer_t::inner_out

private

k_inner

unsigned int MHASignal::doublebuffer_t::k_inner

private

k_outer

unsigned int MHASignal::doublebuffer_t::k_outer

private

ch

unsigned int MHASignal::doublebuffer_t::ch

private

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

• mha_signal.hh
• mha_signal.cpp