Table of Contents

Class NVVP8DecoderBlock

Namespace
VisioForge.Core.MediaBlocks.VideoDecoders
Assembly
VisioForge.Core.dll

NVIDIA hardware-accelerated VP8 video decoder block using NVDEC technology. This block leverages NVIDIA GPU hardware decoding capabilities to efficiently decode VP8 video streams with minimal CPU usage. VP8 is an open-source video codec developed by Google, commonly used in WebM containers and WebRTC video communications.

Hardware requirements: NVIDIA GPU with VP8 NVDEC support (GTX 10xx series or newer)

Supported features: All VP8 profiles, supports real-time decoding for video conferencing

Performance: Hardware acceleration enables smooth WebRTC calls and WebM playback

Use cases: WebRTC video calls, WebM video playback, YouTube content, video conferencing

Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable. 
public class NVVP8DecoderBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

Implements

Inherited Members

Extension Methods

Constructors

NVVP8DecoderBlock()

Initializes a new instance of the VisioForge.Core.MediaBlocks.VideoDecoders.NVVP8DecoderBlock class. The decoder requires an NVIDIA GPU with VP8 NVDEC support (typically GTX 10xx series or newer).

public NVVP8DecoderBlock()

Properties

Input

Gets the primary input pad for receiving VP8 encoded video data.

public override MediaBlockPad Input { get; }

Property Value

MediaBlockPad

Inputs

Gets all input pads available on this hardware decoder block.

public override MediaBlockPad[] Inputs { get; }

Property Value

MediaBlockPad[]

Output

Gets the primary output pad that provides hardware-decoded video frames.

public override MediaBlockPad Output { get; }

Property Value

MediaBlockPad

Outputs

Gets all output pads available on this hardware decoder block.

public override MediaBlockPad[] Outputs { get; }

Property Value

MediaBlockPad[]

Type

Gets the media block type identifier for this NVIDIA VP8 hardware decoder.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Builds and initializes the NVIDIA hardware decoder within the pipeline, allocating GPU resources and configuring NVDEC for VP8 decoding.

public override bool Build()

Returns

bool

true if the hardware decoder was successfully initialized; false if GPU resources are unavailable.

CleanUp()

Performs cleanup of GPU resources, releasing NVDEC hardware decoder and freeing allocated GPU memory.

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 underlying GStreamer NVDEC element for advanced GPU configuration.

public BaseElement GetCore()

Returns

BaseElement

The core NVIDIA VP8 hardware decoder element instance.

GetElement()

Gets the native GStreamer NVDEC element for direct hardware manipulation.

public Element GetElement()

Returns

Element

The underlying GStreamer NVIDIA VP8 decoder element.

IsAvailable()

Determines whether NVIDIA hardware VP8 decoding is available on the current system. This method checks for compatible NVIDIA GPU hardware with VP8 support, NVDEC capability, and required drivers. Ensure the NVIDIA Video Codec SDK redistribution package is included in your project.

public static bool IsAvailable()

Returns

bool

true if NVIDIA VP8 hardware decoding is available; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Sets the pipeline context for this hardware decoder block, establishing GPU resource management and pipeline integration.

void IMediaBlockInternals.SetContext(MediaBlocksPipeline pipeline)

Parameters

pipeline MediaBlocksPipeline

The parent MediaBlocksPipeline that manages GPU resources.

See Also