HSoundcardReader< T > Class Template Reference

#include <hsoundcardreader.h>

Inheritance diagram for HSoundcardReader< T >:

Collaboration diagram for HSoundcardReader< T >:

Public Member Functions
	HSoundcardReader (int device, H_SAMPLE_RATE rate, int channels, H_SAMPLE_FORMAT format, int blocksize=DEFAULT_BLOCKSIZE, HProbe< T > *probe=nullptr)
	~HSoundcardReader ()
int	Read (T *dest, size_t blocksize)
bool	Command (HCommand *command)
Public Member Functions inherited from HReader< T >
virtual	~HReader ()=default
HReader< T > *	Reader ()
Public Member Functions inherited from HObject
	HObject ()

Static Public Member Functions
static int	callback (const void *inputBuffer, void *outputBuffer, unsigned long blocksize, const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags, void *userData)

Detailed Description

template<class T>
class HSoundcardReader< T >

Read sound from a soundcard

Constructor & Destructor Documentation

HSoundcardReader()

template<class T >

HSoundcardReader< T >::HSoundcardReader	(	int	device,
		H_SAMPLE_RATE	rate,
		int	channels,
		H_SAMPLE_FORMAT	format,
		int	blocksize = DEFAULT_BLOCKSIZE,
		HProbe< T > *	probe = nullptr
	)

Construct a new HSoundcardReader

Parameters

device	Device id
rate	Samplerate
channels	Number of channels. If more than 1, then samples is returned multiplexed
format	Sample format
blocksize	Number of samples per chunk read
probe	Probe

~HSoundcardReader()

template<class T >

HSoundcardReader< T >::~HSoundcardReader

Default destructor

Member Function Documentation

callback()

template<class T >

int HSoundcardReader< T >::callback ( const void *  inputBuffer, void *  outputBuffer, unsigned long  blocksize, const PaStreamCallbackTimeInfo *  timeInfo, PaStreamCallbackFlags  statusFlags, void *  userData  )

static

Callback method, should only be called by the PortAudio layer

Parameters

inputBuffer	Pointer to buffer containing incomming samples
outputBuffer	Pointer to buffer where output samples should be placed (not relevant for reading)
blocksize	Number of samples to read before calling this callback
timeInfo	Timing information from PortAudio API layer
statusFlags	Callback flags for the PortAudio API layer
userData	Pointer to a struct with user data (buffers, etc.)

Command()

template<class T >

bool HSoundcardReader< T >::Command ( HCommand *  command )

inlinevirtual

Execute and/or pass on a command

Parameters

command

Command

Implements HReader< T >.

Read()

template<class T >

int HSoundcardReader< T >::Read ( T *  dest, size_t  blocksize  )

virtual

Read a block of samples from the soundcard

Parameters

dest	Destination buffer
blocksize	Number of samples to read

Implements HReader< T >.

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

• /home/henrik/Git/Hardt/hardt/libhardt/include/hsoundcardreader.h
• /home/henrik/Git/Hardt/hardt/libhardt/readers/hsoundcardreader.cpp