Table of Contents

Class NVVideoResizeBlock

Namespace
VisioForge.Core.MediaBlocks.Nvidia
Assembly
VisioForge.Core.dll

NVIDIA video resize block for GPU-accelerated video scaling and resolution conversion. This block performs high-performance video resizing entirely on NVIDIA GPU hardware, supporting upscaling and downscaling with various interpolation algorithms optimized for CUDA. Achieves real-time performance even for 4K/8K video processing by leveraging parallel GPU cores. Essential for resolution adaptation, multi-resolution encoding, video wall applications, and any scenario requiring efficient video scaling. Maintains video quality through advanced GPU-based filtering while minimizing latency. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class NVVideoResizeBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

Implements

Inherited Members

Extension Methods

Constructors

NVVideoResizeBlock(Size)

Initializes a new instance of the VisioForge.Core.MediaBlocks.Nvidia.NVVideoResizeBlock class with the specified target resolution.

public NVVideoResizeBlock(Size resolution)

Parameters

resolution Size

The target resolution for video output.

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[]

Resolution

Gets or sets the target resolution for video resizing. Specifies the output width and height in pixels.

public Size Resolution { get; set; }

Property Value

Size

Type

Gets the type.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Constructs and initializes the NVIDIA video resize filter within the pipeline. This method creates the GPU resize filter with the specified resolution settings, establishes input and output pads, and prepares the block for high-performance scaling.

public override bool Build()

Returns

bool

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

CleanUp()

Releases all resources and performs cleanup operations for this NVIDIA video resize block. This method disposes of the GPU resize filter 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 NVIDIA video resize filter.

public BaseElement GetCore()

Returns

BaseElement

The BaseElement wrapper instance that encapsulates the GPU resize filter.

GetElement()

Gets the underlying GStreamer element that performs the GPU video resizing.

public Element GetElement()

Returns

Element

The GStreamer Element instance representing the NVIDIA resize filter.

IsAvailable()

Determines whether this media block is available. Correct NuGet SDK redist should be included into your project. Checks for NVIDIA GPU hardware and required CUDA libraries.

public static bool IsAvailable()

Returns

bool

true if NVIDIA hardware acceleration is available; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Associates this NVIDIA video resize 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