Table of Contents

Class GLTwirlBlock

Namespace
VisioForge.Core.MediaBlocks.OpenGL
Assembly
VisioForge.Core.dll

OpenGL-accelerated twirl swirl distortion effect block for creating spiral and rotational geometric effects. Applies radial twisting transformations that rotate portions of the video around a central point in a spiral pattern, creating dynamic swirl effects, vortex distortions, and artistic spiral manipulations for dramatic visual impact. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class GLTwirlBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

Implements

Inherited Members

Extension Methods

Constructors

GLTwirlBlock()

Initializes a new instance of the VisioForge.Core.MediaBlocks.OpenGL.GLTwirlBlock class for twirl swirl distortion effects. Creates the necessary input and output pads for video processing with radial spiral and rotational transformations.

public GLTwirlBlock()

Properties

Input

Gets the primary input pad for receiving video frames to be twisted and swirled.

public override MediaBlockPad Input { get; }

Property Value

MediaBlockPad

Inputs

Gets all input pads available on this block (single input for video processing).

public override MediaBlockPad[] Inputs { get; }

Property Value

MediaBlockPad[]

Output

Gets the primary output pad for providing twirl-distorted video frames.

public override MediaBlockPad Output { get; }

Property Value

MediaBlockPad

Outputs

Gets all output pads available on this block (single output for processed video).

public override MediaBlockPad[] Outputs { get; }

Property Value

MediaBlockPad[]

Type

Gets the media block type identifier for OpenGL twirl effects.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Builds and initializes the OpenGL twirl swirl effect block within the pipeline context. Creates the GStreamer twirl filter and establishes the necessary pad connections for processing video frames with radial spiral and rotational distortions.

public override bool Build()

Returns

bool

true if the twirl swirl effect block was successfully built and configured; otherwise, false.

CleanUp()

Cleans up all resources associated with the OpenGL twirl swirl effect, including GStreamer elements and GPU shader programs.

public void CleanUp()

Dispose(bool)

Releases unmanaged and managed resources used by the OpenGL twirl swirl effect block. Properly disposes of GStreamer elements and GPU geometric transformation resources.

protected override void Dispose(bool disposing)

Parameters

disposing bool

true to release both managed and unmanaged resources; false to release only unmanaged resources.

GetCore()

Gets the core GStreamer element wrapper for advanced configuration and monitoring.

public BaseElement GetCore()

Returns

BaseElement

The BaseElement wrapper providing access to the underlying GStreamer twirl filter.

GetElement()

Gets the native GStreamer element for direct GStreamer pipeline integration.

public Element GetElement()

Returns

Element

The native Gst.Element representing the twirl swirl effect filter.

IsAvailable()

Determines whether OpenGL twirl swirl effect functionality is available on the current system. Requires OpenGL support and appropriate GStreamer OpenGL geometric distortion plugins to be installed.

public static bool IsAvailable()

Returns

bool

true if twirl swirl effects are supported; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Sets the pipeline context for this OpenGL twirl swirl effect block, providing access to the parent pipeline and logging context.

void IMediaBlockInternals.SetContext(MediaBlocksPipeline pipeline)

Parameters

pipeline MediaBlocksPipeline

The parent MediaBlocks pipeline containing this twirl swirl effect block.

See Also