Table of Contents

Class GrayscaleBlock

Namespace
VisioForge.Core.MediaBlocks.VideoProcessing
Assembly
VisioForge.Core.dll

MediaBlock that converts color video to grayscale (black and white) output. This effect removes color information while preserving luminance values, creating a monochrome representation of the input video. Commonly used for artistic effects, reducing bandwidth requirements, or creating vintage-style video content. The conversion maintains proper brightness levels by using luminance weighting. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class GrayscaleBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

Implements

Inherited Members

Extension Methods

Constructors

GrayscaleBlock()

Initializes a new instance of the VisioForge.Core.MediaBlocks.VideoProcessing.GrayscaleBlock class. Creates a grayscale conversion block ready to convert color video to monochrome output.

public GrayscaleBlock()

Properties

Input

Gets the input.

public override MediaBlockPad Input { get; }

Property Value

MediaBlockPad

Inputs

Gets the inputs.

public override MediaBlockPad[] Inputs { get; }

Property Value

MediaBlockPad[]

Output

Gets the output.

public override MediaBlockPad Output { get; }

Property Value

MediaBlockPad

Outputs

Gets the outputs.

public override MediaBlockPad[] Outputs { get; }

Property Value

MediaBlockPad[]

Type

Gets the type.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Constructs and initializes the grayscale filter and its associated GStreamer elements. This method creates the filter, establishes input and output pads, and prepares the block for color-to-grayscale video processing.

public override bool Build()

Returns

bool

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

CleanUp()

Releases all resources and performs cleanup operations for this grayscale block. This method disposes of the GStreamer elements 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 GStreamer grayscale filter element.

public BaseElement GetCore()

Returns

BaseElement

The BaseElement wrapper instance that encapsulates the GStreamer grayscale filter.

GetElement()

Gets the underlying GStreamer element that performs the grayscale conversion.

public Element GetElement()

Returns

Element

The GStreamer Element instance representing the grayscale filter.

IsAvailable()

Determines whether the grayscale filter is available on the current system. This checks if the required GStreamer video processing plugins are installed and accessible. The correct NuGet SDK redistribution package should be included in your project.

public static bool IsAvailable()

Returns

bool

true if the grayscale filter is available and can be used; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Associates this grayscale 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