QInferenceDataPort Class

The QInferenceDataPort class represents an input or output of a QInferenceStep through which data flows. More...

Header:	`#include <QInferenceDataPort>`
CMake:	`find_package(Qt6 REQUIRED COMPONENTS EdgeAi)` `target_link_libraries(mytarget PRIVATE Qt6::EdgeAi)`
qmake:	`QT += edgeai`
Inherits:	QObject
Status:	Technical Preview

List of all members, including inherited members

Public Types

enum class	Direction { In, Out }
enum class	Type { Text, Audio, Video, Image, Json }
flags	Types

Properties

connected : bool

Public Functions

	QInferenceDataPort(QInferenceBackendDataPort *implementation, QObject *parent = nullptr)
bool	connectTo(QInferenceDataPort *other)
QInferenceDataPort::Direction	direction() const
bool	isConnected() const
QString	name() const
QInferenceDataPort::Type	type() const

Signals

void	connectedChanged()
void	dataAvailable(const QVariant &data)

Detailed Description

Ports have a name(), a type() such as Video or Json, and a direction() of In or Out. Use connectTo() to connect an output port to an input port of another step.

Member Type Documentation

enum class QInferenceDataPort::Direction

This enum describes the direction in which data flows through a port.

Constant	Value	Description
`QInferenceDataPort::Direction::In`	`0`	Input port.
`QInferenceDataPort::Direction::Out`	`1`	Output port.

enum class QInferenceDataPort::Type
flags QInferenceDataPort::Types

This enum describes the type of data carried by a port.

Constant	Value	Description
`QInferenceDataPort::Type::Text`	`0x00001`	The port carries text data.
`QInferenceDataPort::Type::Audio`	`0x00002`	The port carries audio data.
`QInferenceDataPort::Type::Video`	`0x00004`	The port carries video data.
`QInferenceDataPort::Type::Image`	`0x00008`	The port carries image data.
`QInferenceDataPort::Type::Json`	`0x0010`	The port carries JSON data.

The Types type is a typedef for QFlags<Type>. It stores an OR combination of Type values.

Property Documentation

`[read-only]` connected : bool

This property holds whether this port is connected to another port.

The property turns true once connectTo() links this port to another one, on both the source and the target port.

Access functions:

bool	isConnected() const

Notifier signal:

void	connectedChanged()

See also connectTo().

Member Function Documentation

`[explicit]` QInferenceDataPort::QInferenceDataPort(QInferenceBackendDataPort **implementation*, QObject **parent* = nullptr)

Creates a QInferenceDataPort with the given implementation and parent. The implementation must have its direction set before construction. QInferenceStep creates ports through this constructor; applications typically access ports through QInferenceStep::inputPorts(), outputPorts(), or port().

bool QInferenceDataPort::connectTo(QInferenceDataPort **other*)

Connects this port to other, typically an output port to an input port of another step. Returns true if the connection succeeds; otherwise returns false. On success, the connected property turns true on both ports.

See also connected.

`[signal]` void QInferenceDataPort::dataAvailable(const QVariant &data)

This signal is emitted when data reaches this port.

QInferenceDataPort::Direction QInferenceDataPort::direction() const

Returns the direction of this port, either In or Out.

See also name() and type().

QString QInferenceDataPort::name() const

Returns the name of this port.

QInferenceDataPort::Type QInferenceDataPort::type() const

Returns the data type of this port, such as Video or Json.

See also Type.

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