Table of Contents

Class GLGrayscaleBlock

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

OpenGL-accelerated grayscale conversion block for transforming color video into monochrome output. Provides GPU-accelerated color-to-grayscale conversion using luminance-based algorithms that maintain proper brightness levels and contrast while removing color information for artistic or technical purposes. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class GLGrayscaleBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

Implements

Inherited Members

Extension Methods

Constructors

GLGrayscaleBlock()

Initializes a new instance of the VisioForge.Core.MediaBlocks.OpenGL.GLGrayscaleBlock class for color-to-grayscale conversion. Creates the necessary input and output pads for video processing with monochrome transformation.

public GLGrayscaleBlock()

Properties

Input

Gets the primary input pad for receiving color video frames to be converted.

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 grayscale converted 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 grayscale conversion.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Builds and initializes the OpenGL grayscale conversion block within the pipeline context. Creates the GStreamer grayscale filter and establishes the necessary pad connections for processing video frames with color-to-monochrome conversion.

public override bool Build()

Returns

bool

true if the grayscale conversion block was successfully built and configured; otherwise, false.

CleanUp()

Cleans up all resources associated with the OpenGL grayscale conversion, including GStreamer elements and GPU shader programs.

public void CleanUp()

Dispose(bool)

Releases unmanaged and managed resources used by the OpenGL grayscale conversion block. Properly disposes of GStreamer elements and GPU color conversion 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 grayscale filter.

GetElement()

Gets the native GStreamer element for direct GStreamer pipeline integration.

public Element GetElement()

Returns

Element

The native Gst.Element representing the grayscale conversion filter.

IsAvailable()

Determines whether OpenGL grayscale conversion functionality is available on the current system. Requires OpenGL support and appropriate GStreamer OpenGL color conversion plugins to be installed.

public static bool IsAvailable()

Returns

bool

true if grayscale conversion operations are supported; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Sets the pipeline context for this OpenGL grayscale conversion block, providing access to the parent pipeline and logging context.

void IMediaBlockInternals.SetContext(MediaBlocksPipeline pipeline)

Parameters

pipeline MediaBlocksPipeline

The parent MediaBlocks pipeline containing this grayscale conversion block.

See Also