AudioPlayerWrapper: A Wrapper which receives audio streams from a network port and sends it to device for playback More...

#include <audioPlayerWrapper/AudioPlayerWrapper.h>

Inheritance diagram for AudioPlayerWrapper:

Public Member Functions
	AudioPlayerWrapper ()

	AudioPlayerWrapper (const AudioPlayerWrapper &)=delete

	AudioPlayerWrapper (AudioPlayerWrapper &&)=delete

AudioPlayerWrapper &	operator= (const AudioPlayerWrapper &)=delete

AudioPlayerWrapper &	operator= (AudioPlayerWrapper &&)=delete

	~AudioPlayerWrapper () override

bool	open (yarp::os::Searchable &params) override
	Initialize the object.

bool	close () override
	Shut the object down.

bool	attach (yarp::dev::PolyDriver *driver) override
	Specify which sensor this thread has to read from.

bool	detach () override
	Detach the object (you must have first called attach).

bool	threadInit () override
	Initialization method.

void	afterStart (bool success) override
	Called just after a new thread starts (or fails to start), this is executed by the same thread that calls start().

void	threadRelease () override
	Release method.

void	run () override
	Loop function.

Public Member Functions inherited from yarp::os::PeriodicThread
	PeriodicThread (double period, ShouldUseSystemClock useSystemClock=ShouldUseSystemClock::No, PeriodicThreadClock clockAccuracy=PeriodicThreadClock::Relative)
	Constructor.

	PeriodicThread (double period, PeriodicThreadClock clockAccuracy)
	Constructor.

virtual	~PeriodicThread ()

bool	start ()
	Call this to start the thread.

void	step ()
	Call this to "step" the thread rather than starting it.

void	stop ()
	Call this to stop the thread, this call blocks until the thread is terminated (and releaseThread() called).

void	askToStop ()
	Stop the thread.

bool	isRunning () const
	Returns true when the thread is started, false otherwise.

bool	isSuspended () const
	Returns true when the thread is suspended, false otherwise.

bool	setPeriod (double period)
	Set the (new) period of the thread.

double	getPeriod () const
	Return the current period of the thread.

void	suspend ()
	Suspend the thread, the thread keeps running by doLoop is never executed.

void	resume ()
	Resume the thread if previously suspended.

void	resetStat ()
	Reset thread statistics.

double	getEstimatedPeriod () const
	Return estimated period since last reset.

void	getEstimatedPeriod (double &av, double &std) const
	Return estimated period since last reset.

unsigned int	getIterations () const
	Return the number of iterations performed since last reset.

double	getEstimatedUsed () const
	Return the estimated duration of the run() function since last reset.

void	getEstimatedUsed (double &av, double &std) const
	Return estimated duration of the run() function since last reset.

int	setPriority (int priority, int policy=-1)
	Set the priority and scheduling policy of the thread, if the OS supports that.

int	getPriority () const
	Query the current priority of the thread, if the OS supports that.

int	getPolicy () const
	Query the current scheduling policy of the thread, if the OS supports that.

Public Member Functions inherited from yarp::dev::DeviceDriver
	DeviceDriver ()

	DeviceDriver (const DeviceDriver &other)=delete

	DeviceDriver (DeviceDriver &&other) noexcept=delete

DeviceDriver &	operator= (const DeviceDriver &other)=delete

DeviceDriver &	operator= (DeviceDriver &&other) noexcept=delete

	~DeviceDriver () override

bool	open (yarp::os::Searchable &config) override
	Open the DeviceDriver.

bool	close () override
	Close the DeviceDriver.

virtual std::string	id () const
	Return the id assigned to the PolyDriver.

virtual void	setId (const std::string &id)
	Set the id for this device.

template<class T >
bool	view (T *&x)
	Get an interface to the device driver.

virtual DeviceDriver *	getImplementation ()
	Some drivers are bureaucrats, pointing at others.

Public Member Functions inherited from yarp::os::IConfig
virtual	~IConfig ()
	Destructor.

virtual bool	configure (Searchable &config)
	Change online parameters.

Public Member Functions inherited from yarp::dev::WrapperSingle
	~WrapperSingle () override
	Destructor.

bool	attachAll (const yarp::dev::PolyDriverList &drivers) final
	Attach to a list of objects.

bool	detachAll () final
	Detach the object (you must have first called attach).

Public Member Functions inherited from yarp::dev::IWrapper
virtual	~IWrapper ()
	Destructor.

Public Member Functions inherited from yarp::dev::IMultipleWrapper
virtual	~IMultipleWrapper ()
	Destructor.

Public Member Functions inherited from yarp::os::PortReader
virtual	~PortReader ()
	Destructor.

virtual Type	getReadType () const

Additional Inherited Members
Protected Member Functions inherited from yarp::os::PeriodicThread
virtual void	beforeStart ()
	Called just before a new thread starts.

Detailed Description

AudioPlayerWrapper: A Wrapper which receives audio streams from a network port and sends it to device for playback

Description of input parameters

Parameters required by this device are:

Parameter name	SubParameter	Type	Units	Default Value	Required	Description	Notes
name	-	string	-	/audioPlayerWrapper	No	full name of the port opened by the device	MUST start with a '/' character, xxx/audio:i, xxx/rpc:i, xxx/status:o, ports are opened
period	-	int	ms	20	No	period of the internal thread, in ms	default 20ms
debug	-	bool	-	-	No	developers use only
playback_network_buffer_size	-	float	s	5.0	No	size of the audio buffer in seconds, increasing this value to robustify the real-time audio stream (it will increase latency too)	Audio playback will start when the buffer is full
start	-	bool	-	false	No	automatically activates the playback when the device is started	if false, the playback is enabled via rpc port

See Audio in YARP for additional documentation on YARP audio.

Definition at line 52 of file AudioPlayerWrapper.h.

Constructor & Destructor Documentation

◆ AudioPlayerWrapper() [1/3]

AudioPlayerWrapper::AudioPlayerWrapper ( )

Definition at line 29 of file AudioPlayerWrapper.cpp.

◆ AudioPlayerWrapper() [2/3]

AudioPlayerWrapper::AudioPlayerWrapper ( const AudioPlayerWrapper & )

delete

◆ AudioPlayerWrapper() [3/3]

AudioPlayerWrapper::AudioPlayerWrapper ( AudioPlayerWrapper && )

delete

◆ ~AudioPlayerWrapper()

AudioPlayerWrapper::~AudioPlayerWrapper ( )

override

Definition at line 36 of file AudioPlayerWrapper.cpp.

Member Function Documentation

◆ afterStart()

void AudioPlayerWrapper::afterStart ( bool success )

overridevirtual

Called just after a new thread starts (or fails to start), this is executed by the same thread that calls start().

Parameters

success true iff the new thread started successfully.

Reimplemented from yarp::os::PeriodicThread.

Definition at line 255 of file AudioPlayerWrapper.cpp.

◆ attach()

bool AudioPlayerWrapper::attach ( yarp::dev::PolyDriver * driver )

overridevirtual

Specify which sensor this thread has to read from.

Implements yarp::dev::IWrapper.

Definition at line 45 of file AudioPlayerWrapper.cpp.

◆ close()

bool AudioPlayerWrapper::close ( )

overridevirtual

Shut the object down.

You should override this.

Returns: true/false on success/failure.

Reimplemented from yarp::os::IConfig.

Definition at line 320 of file AudioPlayerWrapper.cpp.

◆ detach()

bool AudioPlayerWrapper::detach ( )

overridevirtual

Detach the object (you must have first called attach).

Returns: true/false on success failure.

Implements yarp::dev::IWrapper.

Definition at line 68 of file AudioPlayerWrapper.cpp.

◆ open()

bool AudioPlayerWrapper::open ( yarp::os::Searchable & config )

overridevirtual

Initialize the object.

You should override this.

Parameters

config is a list of parameters for the object. Which parameters are effective for your object can vary.

Returns: true/false upon success/failure

Reimplemented from yarp::os::IConfig.

Definition at line 161 of file AudioPlayerWrapper.cpp.

◆ operator=() [1/2]

AudioPlayerWrapper & AudioPlayerWrapper::operator= ( AudioPlayerWrapper && )

delete

◆ operator=() [2/2]

AudioPlayerWrapper & AudioPlayerWrapper::operator= ( const AudioPlayerWrapper & )

delete

◆ run()

void AudioPlayerWrapper::run ( )

overridevirtual

Loop function.

This is the thread itself. The thread calls the run() function every <period> ms. At the end of each run, the thread will sleep the amounth of time required, taking into account the time spent inside the loop function. Example: requested period is 10ms, the run() function take 3ms to be executed, the thread will sleep for 7ms.

Note: after each run is completed, the thread will call a yield() in order to facilitate other threads to run.

Implements yarp::os::PeriodicThread.

Definition at line 267 of file AudioPlayerWrapper.cpp.

◆ threadInit()

bool AudioPlayerWrapper::threadInit ( )

overridevirtual

Initialization method.

The thread executes this function when it starts and before "run". This is a good place to perform initialization tasks that need to be done by the thread itself (device drivers initialization, memory allocation etc). If the function returns false the thread quits and never calls "run". The return value of threadInit() is notified to the class and passed as a parameter to afterStart(). Note that afterStart() is called by the same thread that is executing the "start" method.

Reimplemented from yarp::os::PeriodicThread.

Definition at line 156 of file AudioPlayerWrapper.cpp.

◆ threadRelease()

void AudioPlayerWrapper::threadRelease ( )

overridevirtual

Release method.

The thread executes this function once when it exits, after the last "run". This is a good place to release resources that were initialized in threadInit() (release memory, and device driver resources).

Reimplemented from yarp::os::PeriodicThread.

Definition at line 245 of file AudioPlayerWrapper.cpp.

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

src/devices/audioPlayerWrapper/AudioPlayerWrapper.h
src/devices/audioPlayerWrapper/AudioPlayerWrapper.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Description of input parameters

Constructor & Destructor Documentation

◆ AudioPlayerWrapper() [1/3]

◆ AudioPlayerWrapper() [2/3]

◆ AudioPlayerWrapper() [3/3]

◆ ~AudioPlayerWrapper()

Member Function Documentation

◆ afterStart()

◆ attach()

◆ close()

◆ detach()

◆ open()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ run()

◆ threadInit()

◆ threadRelease()