#include <gstreamer_carrier/GstreamerStream.h>

Inheritance diagram for GstreamerStream:

Public Member Functions
	GstreamerStream ()

virtual bool	open (const std::string &pipeline_string, const yarp::os::Contact &remote)

virtual bool	open (const std::string &pipeline_string, const yarp::os::Contact &local, const yarp::os::Contact &remote)

virtual	~GstreamerStream ()

InputStream &	getInputStream () override
	Get an InputStream to read from.

OutputStream &	getOutputStream () override
	Get an OutputStream to write to.

const yarp::os::Contact &	getLocalAddress () const override
	Get the address of the local side of the stream.

const yarp::os::Contact &	getRemoteAddress () const override
	Get the address of the remote side of the stream.

yarp::sig::ImageOf< yarp::sig::PixelRgb > *	getFrame ()

void	prepareNextFrame ()

void	interrupt () override
	Interrupt the stream.

void	close () override
	Terminate the stream.

virtual void	closeMain ()

bool	isOk () const override
	Check if the stream is ok or in an error state.

yarp::conf::ssize_t	read (yarp::os::Bytes &b) override
	Read a block of data from the stream.

void	write (const yarp::os::Bytes &b) override
	Write a block of bytes to the stream.

void	reset () override
	Reset the stream.

void	beginPacket () override
	Mark the beginning of a logical packet.

void	endPacket () override
	Mark the end of a logical packet (see beginPacket).

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

Public Member Functions inherited from yarp::os::InputStream
	InputStream ()
	Constructor.

virtual	~InputStream ()
	Destructor.

virtual void	check ()
	Perform maintenance actions, if needed.

virtual int	read ()
	Read and return a single byte.

virtual yarp::conf::ssize_t	read (Bytes &b, size_t offset, yarp::conf::ssize_t len)
	Read a block of data from the stream.

virtual yarp::conf::ssize_t	partialRead (yarp::os::Bytes &b)
	Like read, but solicit partial responses.

virtual bool	setReadTimeout (double timeout)
	Set activity timeout.

std::string	readLine (const char terminal='\n', bool *success=nullptr)
	Read a block of text terminated with a specific marker (or EOF).

yarp::conf::ssize_t	readFull (Bytes &b)
	Keep reading until buffer is full.

yarp::conf::ssize_t	readDiscard (size_t len)
	Read and discard a fixed number of bytes.

virtual bool	setReadEnvelopeCallback (readEnvelopeCallbackType callback, void *data)
	Install a callback that the InputStream will have to call when the envelope is read from a message in carriers that cannot be escaped.

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

virtual void	write (char ch)
	Write a single byte to the stream.

virtual void	write (const Bytes &b, int offset, int len)
	Write a block of bytes to the stream.

virtual void	flush ()
	Make sure all pending write operations are finished.

virtual void	writeLine (const char *data, int len)
	Write some text followed by a line feed.

virtual bool	setWriteTimeout (double timeout)
	Set activity timeout.

virtual bool	setTypeOfService (int tos)

virtual int	getTypeOfService ()

Additional Inherited Members
Public Types inherited from yarp::os::InputStream
typedef void(*	readEnvelopeCallbackType) (void *, const yarp::os::Bytes &envelope)
	Callback type for setting the envelope from a message in carriers that cannot be escaped.

Detailed Description

Definition at line 20 of file GstreamerStream.h.

Constructor & Destructor Documentation

◆ GstreamerStream()

GstreamerStream::GstreamerStream ( )

inline

Definition at line 29 of file GstreamerStream.h.

◆ ~GstreamerStream()

GstreamerStream::~GstreamerStream ( )

virtual

Definition at line 64 of file GstreamerStream.cpp.

Member Function Documentation

◆ beginPacket()

void GstreamerStream::beginPacket ( )

overridevirtual

Mark the beginning of a logical packet.

This is a unit that should be treated in an atomic fashion by YARP. If any part is corrupted, the whole should be dropped.

Implements yarp::os::TwoWayStream.

Definition at line 225 of file GstreamerStream.cpp.

◆ close()

void GstreamerStream::close ( )

inlineoverridevirtual

Terminate the stream.

Implements yarp::os::TwoWayStream.

Definition at line 67 of file GstreamerStream.h.

◆ closeMain()

void GstreamerStream::closeMain ( )

virtual

Definition at line 92 of file GstreamerStream.cpp.

◆ endPacket()

void GstreamerStream::endPacket ( )

overridevirtual

Mark the end of a logical packet (see beginPacket).

Implements yarp::os::TwoWayStream.

Definition at line 229 of file GstreamerStream.cpp.

◆ getFrame()

yarp::sig::ImageOf< yarp::sig::PixelRgb > * GstreamerStream::getFrame ( )

Definition at line 109 of file GstreamerStream.cpp.

◆ getInputStream()

InputStream & GstreamerStream::getInputStream ( )

inlineoverridevirtual

Get an InputStream to read from.

Returns: the InputStream associated with this object.

Implements yarp::os::TwoWayStream.

Definition at line 42 of file GstreamerStream.h.

◆ getLocalAddress()

const yarp::os::Contact & GstreamerStream::getLocalAddress ( ) const

inlineoverridevirtual

Get the address of the local side of the stream.

Returns: the address of the local side of the stream. The address will be tagged as invalid if the stream is not set up.

Implements yarp::os::TwoWayStream.

Definition at line 52 of file GstreamerStream.h.

◆ getOutputStream()

OutputStream & GstreamerStream::getOutputStream ( )

inlineoverridevirtual

Get an OutputStream to write to.

Returns: the InputStream associated with this object.

Implements yarp::os::TwoWayStream.

Definition at line 47 of file GstreamerStream.h.

◆ getRemoteAddress()

const yarp::os::Contact & GstreamerStream::getRemoteAddress ( ) const

inlineoverridevirtual

Get the address of the remote side of the stream.

Returns: the address of the remote side of the stream. The address will be tagged as invalid if the stream is not set up.

Implements yarp::os::TwoWayStream.

Definition at line 57 of file GstreamerStream.h.

◆ interrupt()

void GstreamerStream::interrupt ( )

overridevirtual

Interrupt the stream.

If the stream is currently in a blocked state, it must be unblocked.

Reimplemented from yarp::os::InputStream.

Definition at line 69 of file GstreamerStream.cpp.

◆ isOk()

bool GstreamerStream::isOk ( ) const

overridevirtual

Check if the stream is ok or in an error state.

Returns: true iff the stream is ok

Implements yarp::os::TwoWayStream.

Definition at line 103 of file GstreamerStream.cpp.

◆ open() [1/2]

bool GstreamerStream::open	(	const std::string &	pipeline_string,
		const yarp::os::Contact &	local,
		const yarp::os::Contact &	remote
	)

virtual

Definition at line 39 of file GstreamerStream.cpp.

◆ open() [2/2]

bool GstreamerStream::open	(	const std::string &	pipeline_string,
		const yarp::os::Contact &	remote
	)

virtual

Definition at line 33 of file GstreamerStream.cpp.

◆ prepareNextFrame()

void GstreamerStream::prepareNextFrame ( )

Definition at line 132 of file GstreamerStream.cpp.

◆ read()

yarp::conf::ssize_t GstreamerStream::read ( yarp::os::Bytes & b )

overridevirtual

Read a block of data from the stream.

Should block and wait for data.

Parameters

b[out] the block of data to read to

Returns: the number of bytes read, or -1 upon error

Implements yarp::os::InputStream.

Definition at line 141 of file GstreamerStream.cpp.

◆ reset()

void GstreamerStream::reset ( )

overridevirtual

Reset the stream.

Implements yarp::os::TwoWayStream.

Definition at line 221 of file GstreamerStream.cpp.

◆ write()

void GstreamerStream::write ( const yarp::os::Bytes & b )

overridevirtual

Write a block of bytes to the stream.

Parameters

b	the bytes to write

Implements yarp::os::OutputStream.

Definition at line 217 of file GstreamerStream.cpp.

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

src/carriers/gstreamer_carrier/GstreamerStream.h
src/carriers/gstreamer_carrier/GstreamerStream.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ GstreamerStream()

◆ ~GstreamerStream()

Member Function Documentation

◆ beginPacket()

◆ close()

◆ closeMain()

◆ endPacket()

◆ getFrame()

◆ getInputStream()

◆ getLocalAddress()

◆ getOutputStream()

◆ getRemoteAddress()

◆ interrupt()

◆ isOk()

◆ open() [1/2]

◆ open() [2/2]

◆ prepareNextFrame()

◆ read()

◆ reset()

◆ write()