PortAudio input stream as a Source. More...

#include <portaudio.hh>

Inheritance diagram for sdr::PortSource< Scalar >:

Public Member Functions
	PortSource (double sampleRate, size_t bufferSize, int dev=-1)
	Constructor. More...

virtual	~PortSource ()
	Destructor. More...

void	next ()
	Reads (blocking) the next buffer from the PortAudio stream. More...

int	deviceIndex () const
	Returns the currently selected input device. More...

void	setDeviceIndex (int idx=-1)
	Selects the input device, throws a `ConfigError` exception if the device can not be setup as an input device. More...

bool	hasSampleRate (double sampleRate)
	Checks if the given sample rate is supported by the device. More...

void	setSampleRate (double sampleRate)
	Resets the sample rate of the input device. More...

Public Member Functions inherited from sdr::Source
	Source ()
	Constructor. More...

virtual	~Source ()
	Destructor. More...

virtual void	send (const RawBuffer &buffer, bool allow_overwrite=false)
	Sends the given buffer to all connected sinks. More...

void	connect (SinkBase *sink, bool direct=false)
	Connect this source to a sink. More...

void	disconnect (SinkBase *sink)
	Disconnect a sink again. More...

virtual void	setConfig (const Config &config)
	Stores the configuration and propergates it if the configuration has been changed. More...

virtual double	sampleRate () const
	Returns the configured sample rate or `0` otherwise. More...

virtual Config::Type	type () const
	Returns the configured source type or `Config::Type_UNDEFINED` otherwise. More...

template<class T >
void	addEOS (T instance, void(T::function)())
	Adds a callback to the end-of-stream signal of the source. More...

Protected Member Functions
void	_initializeStream (int idx=-1)
	Device setup. More...

Protected Member Functions inherited from sdr::Source
void	signalEOS ()
	Signals the EOS. More...

void	propagateConfig (const Config &config)
	Propagates the given configuration to all connected sinks. More...

Protected Attributes
bool	_streamIsOpen
	If true, the PortAudio stream, `_stream` is open. More...

PaStream *	_stream
	The PortAudio input stream. More...

PaSampleFormat	_fmt
	The current format of the PortAudio stream. More...

double	_sampleRate
	The current sample rate. More...

int	_deviceIndex
	The current input device index. More...

bool	_is_real
	If `true`, the input stream is real (1 chanel), otherwise complex (2 chanels). More...

Buffer< Scalar >	_buffer
	The output buffer. More...

Protected Attributes inherited from sdr::Source
Config	_config
	Holds the source configuration, this can be updated by calling `setConfig`. More...

std::map< SinkBase *, bool >	_sinks
	The connected sinks. More...

std::list< DelegateInterface * >	_eos
	The connected EOS singal handlers. More...

Detailed Description

template<class Scalar>
class sdr::PortSource< Scalar >

PortAudio input stream as a Source.

Constructor & Destructor Documentation

template<class Scalar >

sdr::PortSource< Scalar >::PortSource	(	double	sampleRate,
		size_t	bufferSize,
		int	dev = `-1`
	)

inline

Constructor.

template<class Scalar >

virtual sdr::PortSource< Scalar >::~PortSource ( )

inlinevirtual

Destructor.

Member Function Documentation

template<class Scalar >

void sdr::PortSource< Scalar >::_initializeStream ( int idx = -1 )

inlineprotected

Device setup.

template<class Scalar >

int sdr::PortSource< Scalar >::deviceIndex ( ) const

inline

Returns the currently selected input device.

template<class Scalar >

bool sdr::PortSource< Scalar >::hasSampleRate ( double sampleRate )

inline

Checks if the given sample rate is supported by the device.

template<class Scalar >

void sdr::PortSource< Scalar >::next ( )

inline

Reads (blocking) the next buffer from the PortAudio stream.

This function can be connected to the idle event of the Queue.

Todo:: Signal loss of samples in debug mode.

Bug:: Drop data if output buffer is in use.

template<class Scalar >

void sdr::PortSource< Scalar >::setDeviceIndex ( int idx = -1 )

inline

Selects the input device, throws a ConfigError exception if the device can not be setup as an input device.

Do not call this function, while the Queue is running.

template<class Scalar >

void sdr::PortSource< Scalar >::setSampleRate ( double sampleRate )

inline

Resets the sample rate of the input device.

Do not call this function, while the Queue is running.

Member Data Documentation

template<class Scalar >

Buffer<Scalar> sdr::PortSource< Scalar >::_buffer

protected

The output buffer.

template<class Scalar >

int sdr::PortSource< Scalar >::_deviceIndex

protected

The current input device index.

template<class Scalar >

PaSampleFormat sdr::PortSource< Scalar >::_fmt

protected

The current format of the PortAudio stream.

template<class Scalar >

bool sdr::PortSource< Scalar >::_is_real

protected

If true, the input stream is real (1 chanel), otherwise complex (2 chanels).

template<class Scalar >

double sdr::PortSource< Scalar >::_sampleRate

protected

The current sample rate.

template<class Scalar >

PaStream* sdr::PortSource< Scalar >::_stream

protected

The PortAudio input stream.

template<class Scalar >

bool sdr::PortSource< Scalar >::_streamIsOpen

protected

If true, the PortAudio stream, _stream is open.

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

/Users/hannes/Uni/Elektronik/sdr/libsdr/src/portaudio.hh

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

template<class Scalar> class sdr::PortSource< Scalar >

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<class Scalar>
class sdr::PortSource< Scalar >