Class GLVirtualVideoSourceBlock

Namespace

VisioForge.Core.MediaBlocks.OpenGL

Assembly

VisioForge.Core.dll

OpenGL-accelerated virtual video source block for generating programmable GPU-based video content. Provides high-performance virtual video generation capabilities using OpenGL shaders and GPU rendering to create synthetic video content, test patterns, procedural animations, and custom graphics for pipeline processing. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class GLVirtualVideoSourceBlock : SourceMediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

object

MediaBlock

SourceMediaBlock

GLVirtualVideoSourceBlock

Implements

IMediaBlock

IDisposable

IMediaBlockInternals

Inherited Members

SourceMediaBlock.IsSubtitlesAvailable()

SourceMediaBlock.Stop()

MediaBlock._isBuilt

MediaBlock._pipeline

MediaBlock._pipelineCtx

MediaBlock.GetPipelineContext()

MediaBlock.SetPipelineContext(BlockPipelineContext)

MediaBlock.SetPipeline(MediaBlocksPipeline)

MediaBlock.Context

MediaBlock.Name

MediaBlock.IsBuilt

MediaBlock.Owner

MediaBlock.Type

MediaBlock.ID

MediaBlock.Input

MediaBlock.Inputs

MediaBlock.Output

MediaBlock.Outputs

MediaBlock.HasInputs

MediaBlock.HasOutputs

MediaBlock.Build()

MediaBlock.CreateElements()

MediaBlock.AddElementsToPipeline()

MediaBlock.RemoveElementsFromPipeline()

MediaBlock.DeepCopy(string)

MediaBlock.Reset()

MediaBlock.ToYAMLBlock()

MediaBlock.ClearPads()

MediaBlock.Dispose(bool)

MediaBlock.Dispose()

object.Equals(object?)

object.Equals(object?, object?)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object?, object?)

object.ToString()

Extension Methods

MediaBlockExtensions.GetInputPadByType(IMediaBlock, MediaBlockPadMediaType)

MediaBlockExtensions.GetOutputPadByType(IMediaBlock, MediaBlockPadMediaType)

MediaBlockHelper.SendEndOfStream(MediaBlock)

MediaBlockHelper.SendEvent(MediaBlock, Event)

MediaBlockHelper.SetState(MediaBlock, State)

Constructors

GLVirtualVideoSourceBlock(GLVirtualVideoSourceSettings)

Initializes a new instance of the VisioForge.Core.MediaBlocks.OpenGL.GLVirtualVideoSourceBlock class with the specified generation settings. Creates the necessary output pad for providing virtual video content generated using OpenGL GPU rendering.

public GLVirtualVideoSourceBlock(GLVirtualVideoSourceSettings settings)

Parameters

settings GLVirtualVideoSourceSettings

The virtual video source settings that define the content generation and rendering parameters.

Properties

Input

Gets the primary input pad (none for source blocks that generate content).

public override MediaBlockPad Input { get; }

Property Value

MediaBlockPad

Inputs

Gets all input pads available on this block (none for source blocks).

public override MediaBlockPad[] Inputs { get; }

Property Value

MediaBlockPad[]

Output

Gets the primary output pad for providing generated virtual video frames.

public override MediaBlockPad Output { get; }

Property Value

MediaBlockPad

Outputs

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

public override MediaBlockPad[] Outputs { get; }

Property Value

MediaBlockPad[]

Settings

Gets or sets the virtual video source settings that control content generation, resolution, frame rate, and rendering parameters.

public GLVirtualVideoSourceSettings Settings { get; set; }

Property Value

GLVirtualVideoSourceSettings

Type

Gets the media block type identifier for OpenGL virtual video source operations.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Builds and initializes the OpenGL virtual video source block within the pipeline context. Creates the GStreamer virtual video source, applies the generation settings, configures the video queue, and establishes the necessary output pad connections for providing generated virtual video content.

public override bool Build()

Returns

bool

true if the virtual video source block was successfully built and configured; otherwise, false.

CleanUp()

Cleans up all resources associated with the OpenGL virtual video source, including GStreamer elements and GPU rendering contexts.

public void CleanUp()

Dispose(bool)

Releases unmanaged and managed resources used by the OpenGL virtual video source block. Properly disposes of GStreamer elements and GPU rendering 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

Always null for composite source blocks with internal elements.

GetElement()

Gets the native GStreamer element for direct GStreamer pipeline integration.

public Element GetElement()

Returns

Element

The native Gst.Element representing the virtual video source.

IsAvailable()

Determines whether OpenGL virtual video source functionality is available on the current system. Requires OpenGL support and appropriate GStreamer OpenGL video generation plugins to be installed.

public static bool IsAvailable()

Returns

bool

true if virtual video generation is supported; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Sets the pipeline context for this OpenGL virtual video source block, providing access to the parent pipeline and logging context.

void IMediaBlockInternals.SetContext(MediaBlocksPipeline pipeline)

Parameters

pipeline MediaBlocksPipeline

The parent MediaBlocks pipeline containing this virtual video source block.

See Also

MediaBlock

IMediaBlockInternals

IDisposable