Class GLResizeBlock

Namespace

VisioForge.Core.MediaBlocks.OpenGL

Assembly

VisioForge.Core.dll

OpenGL-accelerated video resize block for high-performance video scaling and resolution transformation. Provides GPU-accelerated resizing capabilities with various interpolation algorithms, aspect ratio control, and optimized scaling operations for real-time video processing with minimal CPU overhead. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class GLResizeBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

object

MediaBlock

GLResizeBlock

Implements

IMediaBlock

IDisposable

IMediaBlockInternals

Inherited Members

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

GLResizeBlock(GLResizeVideoEffect)

Initializes a new instance of the VisioForge.Core.MediaBlocks.OpenGL.GLResizeBlock class with the specified resize settings. Creates the necessary input and output pads for video processing with scaling and resolution transformation.

public GLResizeBlock(GLResizeVideoEffect settings)

Parameters

settings GLResizeVideoEffect

The resize effect settings that define the target dimensions and scaling parameters.

Properties

Input

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

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 resized 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[]

Settings

Gets or sets the resize settings that control the target dimensions, scaling algorithm, and aspect ratio behavior.

public GLResizeVideoEffect Settings { get; set; }

Property Value

GLResizeVideoEffect

Type

Gets the media block type identifier for OpenGL resize operations.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Builds and initializes the OpenGL video resize block within the pipeline context. Creates the GStreamer resize filter, applies the scaling settings, and establishes the necessary pad connections for processing video frames with resolution transformation.

public override bool Build()

Returns

bool

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

CleanUp()

Cleans up all resources associated with the OpenGL video resize operation, including GStreamer elements and GPU processing resources.

public void CleanUp()

Dispose(bool)

Releases unmanaged and managed resources used by the OpenGL video resize block. Properly disposes of GStreamer elements and GPU scaling 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 video resize filter.

GetElement()

Gets the native GStreamer element for direct GStreamer pipeline integration.

public Element GetElement()

Returns

Element

The native Gst.Element representing the video resize filter.

IsAvailable()

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

public static bool IsAvailable()

Returns

bool

true if video resize operations are supported; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

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

void IMediaBlockInternals.SetContext(MediaBlocksPipeline pipeline)

Parameters

pipeline MediaBlocksPipeline

The parent MediaBlocks pipeline containing this video resize block.

See Also

MediaBlock

IMediaBlockInternals

IDisposable