Table of Contents

Class GLBlurBlock

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

OpenGL blur block for GPU-accelerated image smoothing and blur effects. This block provides high-performance blur processing using OpenGL shaders and GPU parallel processing capabilities. Supports various blur algorithms including Gaussian, box blur, and motion blur with configurable intensity and direction parameters. Essential for creating cinematic effects, depth-of-field simulation, background defocusing, and artistic video treatments. Achieves real-time performance even with high-resolution video through efficient GPU computation. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class GLBlurBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

Implements

Inherited Members

Extension Methods

Constructors

GLBlurBlock()

Initializes a new instance of the VisioForge.Core.MediaBlocks.OpenGL.GLBlurBlock class. Creates a GPU-accelerated blur effect block with default settings.

public GLBlurBlock()

Properties

Input

Gets the input pad for connecting video sources to be processed.

public override MediaBlockPad Input { get; }

Property Value

MediaBlockPad

Inputs

Gets all input pads for this blur block.

public override MediaBlockPad[] Inputs { get; }

Property Value

MediaBlockPad[]

Output

Gets the output pad for connecting to downstream processing blocks.

public override MediaBlockPad Output { get; }

Property Value

MediaBlockPad

Outputs

Gets all output pads for this blur block.

public override MediaBlockPad[] Outputs { get; }

Property Value

MediaBlockPad[]

Type

Gets the media block type identifier.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Constructs and initializes the OpenGL blur element within the pipeline. This method creates the blur filter with default settings, establishes input and output pads, and prepares the block for GPU-accelerated processing.

public override bool Build()

Returns

bool

true if the blur element was successfully built and configured; false if initialization failed.

CleanUp()

Releases all resources and performs cleanup operations for this OpenGL blur block. This method disposes of the blur filter and resets the build state.

public void CleanUp()

Dispose(bool)

Releases unmanaged and - optionally - managed 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 BaseElement wrapper that provides additional functionality around the OpenGL blur filter.

public BaseElement GetCore()

Returns

BaseElement

The BaseElement wrapper instance that encapsulates the blur functionality.

GetElement()

Gets the underlying GStreamer element that performs the blur operation.

public Element GetElement()

Returns

Element

The GStreamer Element instance representing the OpenGL blur filter.

IsAvailable()

Determines whether this media block is available. Correct NuGet SDK redist should be included into your project. Checks for OpenGL support and GPU shader capabilities.

public static bool IsAvailable()

Returns

bool

true if OpenGL blur functionality is available; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Associates this OpenGL blur block with a pipeline and initializes its internal context. This method is called internally when the block is added to a pipeline.

void IMediaBlockInternals.SetContext(MediaBlocksPipeline pipeline)

Parameters

pipeline MediaBlocksPipeline

The MediaBlocksPipeline instance that will manage this block.

See Also