Table of Contents

Class GLFishEyeBlock

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

OpenGL-accelerated fish eye lens effect block for creating spherical barrel distortion video effects. Simulates the characteristic distortion pattern of wide-angle fish eye camera lenses, creating a dramatic curved perspective that maps the entire scene onto a circular frame with maximum distortion at the edges. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class GLFishEyeBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

Implements

Inherited Members

Extension Methods

Constructors

GLFishEyeBlock()

Initializes a new instance of the VisioForge.Core.MediaBlocks.OpenGL.GLFishEyeBlock class for fish eye lens distortion effects. Creates the necessary input and output pads for video processing with spherical distortion.

public GLFishEyeBlock()

Properties

Input

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

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 fish eye 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 fish eye effects.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Builds and initializes the OpenGL fish eye effect block within the pipeline context. Creates the GStreamer fish eye filter and establishes the necessary pad connections for processing video frames with spherical barrel distortion.

public override bool Build()

Returns

bool

true if the fish eye effect block was successfully built and configured; otherwise, false.

CleanUp()

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

public void CleanUp()

Dispose(bool)

Releases unmanaged and managed resources used by the OpenGL fish eye effect block. Properly disposes of GStreamer elements and GPU shader 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 fish eye filter.

GetElement()

Gets the native GStreamer element for direct GStreamer pipeline integration.

public Element GetElement()

Returns

Element

The native Gst.Element representing the fish eye distortion filter.

IsAvailable()

Determines whether OpenGL fish eye effect functionality is available on the current system. Requires OpenGL support and appropriate GStreamer OpenGL effect plugins to be installed.

public static bool IsAvailable()

Returns

bool

true if fish eye distortion effects are supported; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Sets the pipeline context for this OpenGL fish eye 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 fish eye effect block.

See Also