Class Pipeline

Definition

Namespace:

Tizen.MachineLearning.Inference

Assembly:

Tizen.MachineLearning.Inference.dll

The Pipeline class provides interfaces to create and execute stream pipelines with neural networks.

public class Pipeline : IDisposable

Inheritance

object

Pipeline

Implements

System.IDisposable

Constructors

Pipeline(string)

Creates a new Pipeline instance with the given pipeline description

Declaration

public Pipeline(string description)

Parameters

Type	Name	Description
string	description	The pipeline description. Refer to GStreamer manual or NNStreamer documentation for examples and the grammar.

Remarks

http://tizen.org/privilege/mediastorage is needed if pipeline description is relevant to media storage.

Exceptions

Type	Condition
System.NotSupportedException	Thrown when the feature is not supported.
System.ArgumentException	Thrown when the method failed due to an invalid parameter.
System.UnauthorizedAccessException	Thrown when the application does not have the required privilege.
System.InvalidOperationException	Thrown when the method failed due to the wrong pipeline description or internal error.

Properties

State

The state of pipeline.

Declaration

public PipelineState State { get; }

Property Value

Type	Description
PipelineState

Exceptions

Type	Condition
System.NotSupportedException	Thrown when the feature is not supported.
System.InvalidOperationException	Thrown when failed to get the pipeline state.

Methods

Dispose()

Releases any unmanaged resources used by this object.

Declaration

public void Dispose()

Dispose(bool)

Releases any unmanaged resources used by this object including opened handle.

Declaration

protected virtual void Dispose(bool disposing)

Parameters

Type	Name	Description
bool	disposing	If true, disposes any disposable objects. If false, does not dispose disposable objects.

~Pipeline()

Destructor of the Pipeline instance.

Declaration

protected ~Pipeline()

GetNormal(string)

Gets the normal node instance with given node name.

Declaration

public Pipeline.Node GetNormal(string name)

Parameters

Type	Name	Description
string	name	The name of normal node.

Returns

Type	Description
Pipeline.Node	The normal node instance

Exceptions

Type	Condition
System.NotSupportedException	Thrown when the feature is not supported.
System.ArgumentException	Thrown when the method failed due to an invalid parameter.

GetSink(string)

Gets the sink node instance with given node name.

Declaration

public Pipeline.SinkNode GetSink(string name)

Parameters

Type	Name	Description
string	name	The name of sink node

Returns

Type	Description
Pipeline.SinkNode	The sink node instance

Exceptions

Type	Condition
System.NotSupportedException	Thrown when the feature is not supported.
System.ArgumentException	Thrown when the method failed due to an invalid parameter.

GetSource(string)

Gets the source node instance with given node name.

Declaration

public Pipeline.SourceNode GetSource(string name)

Parameters

Type	Name	Description
string	name	The name of source node

Returns

Type	Description
Pipeline.SourceNode	The source node instance

Exceptions

Type	Condition
System.NotSupportedException	Thrown when the feature is not supported.
System.ArgumentException	Thrown when the method failed due to an invalid parameter.

GetSwitch(string)

Gets the switch node instance with given node name.

Declaration

public Pipeline.SwitchNode GetSwitch(string name)

Parameters

Type	Name	Description
string	name	The name of switch node.

Returns

Type	Description
Pipeline.SwitchNode	The switch node instance

Exceptions

Type	Condition
System.NotSupportedException	Thrown when the feature is not supported.
System.ArgumentException	Thrown when the method failed due to an invalid parameter.

GetValve(string)

Gets the valve node instance with given node name.

Declaration

public Pipeline.ValveNode GetValve(string name)

Parameters

Type	Name	Description
string	name	The name of valve node

Returns

Type	Description
Pipeline.ValveNode	The valve node instance

Exceptions

Type	Condition
System.NotSupportedException	Thrown when the feature is not supported.
System.ArgumentException	Thrown when the method failed due to an invalid parameter.

Start()

Starts the pipeline, asynchronously. (The state would be changed to PipelineState.Playing)

Declaration

public void Start()

Exceptions

Type	Condition
System.NotSupportedException	Thrown when the feature is not supported.
System.InvalidOperationException	Thrown when failed to start the pipeline.

Stop()

Stops the pipeline, asynchronously. (The state would be changed to PipelineState.Paused)

Declaration

public void Stop()

Exceptions

Type	Condition
System.NotSupportedException	Thrown when the feature is not supported.
System.InvalidOperationException	Thrown when failed to stop the pipeline.

Events

StateChanged

Event to be invoked when the pipeline state is changed.

Declaration

public event EventHandler<StateChangedEventArgs> StateChanged

Event Type

Type	Description
System.EventHandler<TEventArgs><StateChangedEventArgs>

Implements

System.IDisposable