Class VideoConverterBlock

Namespace

VisioForge.Core.MediaBlocks.VideoProcessing

Assembly

VisioForge.Core.dll

Video format conversion block that transforms video frames between different colorspaces, pixel formats, and resolutions. This essential pipeline component handles conversions between formats like RGB, YUV, NV12, RGBA, and other pixel formats, ensuring compatibility between different blocks in the pipeline. It performs automatic format negotiation and can handle colorspace conversions, bit depth changes, and chroma subsampling adjustments as needed by connected pipeline elements. Commonly used when connecting blocks that require different input/output formats or when preparing video for specific encoders or renderers. Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class VideoConverterBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

object

MediaBlock

VideoConverterBlock

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

VideoConverterBlock()

Initializes a new instance of the VisioForge.Core.MediaBlocks.VideoProcessing.VideoConverterBlock class. Creates a video converter that can automatically handle format conversions between connected pipeline elements. The converter will perform format negotiation during pipeline connection to determine the optimal conversion path.

public VideoConverterBlock()

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[]

Type

Gets the type.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Constructs and initializes the video converter and its associated GStreamer elements. This method creates the converter element, establishes input and output pads, and prepares the block for automatic format conversion between connected pipeline elements.

public override bool Build()

Returns

bool

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

CleanUp()

Releases all resources and performs cleanup operations for this video converter block. This method disposes of the GStreamer elements 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 GStreamer video converter element.

public BaseElement GetCore()

Returns

BaseElement

The BaseElement wrapper instance that encapsulates the GStreamer video converter.

GetElement()

Gets the underlying GStreamer element that performs the video format conversion processing.

public Element GetElement()

Returns

Element

The GStreamer Element instance representing the video converter.

IsAvailable()

Determines whether video conversion functionality is available on the current system. This checks for the presence of required GStreamer video conversion plugins and libraries. Video conversion is typically available on all platforms with a complete GStreamer installation.

public static bool IsAvailable()

Returns

bool

true if video conversion is available and can be used; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Associates this video converter 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

MediaBlock

IMediaBlockInternals

IDisposable