Table of Contents

Class D3D11AV1DecoderBlock

Namespace
VisioForge.Core.MediaBlocks.Sources
Assembly
VisioForge.Core.dll

Direct3D 11/DXVA AV1 hardware decoder block for Windows systems. This block provides GPU-accelerated AV1 video decoding using DirectX Video Acceleration (DXVA) through Direct3D 11, offering exceptional performance for next-generation video content. AV1 is a royalty-free, open-source codec developed by the Alliance for Open Media (AOMedia) providing superior compression efficiency compared to H.264 and HEVC. Features include support for resolutions up to 8K, 10-bit and 12-bit color depths, HDR (HDR10, HLG), film grain synthesis, and advanced prediction modes. Requires Windows 10 version 1909+ and compatible GPU hardware (Intel Gen 11+, NVIDIA RTX 30 series+, AMD RX 6000+). Essential for modern streaming services, web browsers, video players, and any Windows application requiring efficient playback of AV1-encoded content. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class D3D11AV1DecoderBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

Implements

Inherited Members

Extension Methods

Constructors

D3D11AV1DecoderBlock()

Initializes a new instance of the VisioForge.Core.MediaBlocks.Sources.D3D11AV1DecoderBlock class.

public D3D11AV1DecoderBlock()

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[]

Settings

Gets or sets the Direct3D 11 decoder configuration settings. Contains GPU device selection, decoder profile preferences, and performance tuning parameters specific to DXVA hardware acceleration.

public D3D11DecoderSettings Settings { get; set; }

Property Value

D3D11DecoderSettings

Type

Gets the type.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Constructs and initializes the Direct3D 11 AV1 decoder and its associated GStreamer elements. This method creates the hardware decoder with specified settings, establishes input and output pads, and prepares the block for GPU-accelerated AV1 decoding through DXVA.

public override bool Build()

Returns

bool

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

CleanUp()

Releases all resources and performs cleanup operations for this Direct3D 11 AV1 decoder block. This method disposes of the GStreamer elements and releases DXVA resources.

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 GStreamer Direct3D 11 AV1 decoder element.

public BaseElement GetCore()

Returns

BaseElement

The BaseElement wrapper instance that encapsulates the GStreamer D3D11 AV1 decoder.

GetElement()

Gets the underlying GStreamer element that performs Direct3D 11 AV1 hardware decoding.

public Element GetElement()

Returns

Element

The GStreamer Element instance representing the D3D11 AV1 decoder.

IsAvailable()

Determines whether this media block is available. Correct NuGet SDK redist should be included into your project.

public static bool IsAvailable()

Returns

bool

true if this media block is available; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Associates this Direct3D 11 AV1 decoder 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