Class SimpleVideoMarkBlock

Namespace

VisioForge.Core.MediaBlocks.VideoProcessing

Assembly

VisioForge.Core.dll

MediaBlock that overlays a row of black and white indicator squares (a visible marker pattern) onto the video using the GStreamer simplevideomark element. The pattern encodes the configured data value and can be detected downstream by VisioForge.Core.MediaBlocks.VideoProcessing.SimpleVideoMarkDetectBlock to verify content provenance or for identification and tracking purposes such as broadcast monitoring, content distribution tracking, and digital rights management. The marker is visible by design; for invisible / imperceptible watermarking use a different approach (e.g. steganographic blocks). Implements the VisioForge.Core.MediaBlocks.MediaBlock. Implements the VisioForge.Core.MediaBlocks.IMediaBlockInternals. Implements the IDisposable.

public class SimpleVideoMarkBlock : MediaBlock, IMediaBlock, IDisposable, IMediaBlockInternals

Inheritance

object

MediaBlock

SimpleVideoMarkBlock

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

SimpleVideoMarkBlock(ulong)

Initializes a new instance of the VisioForge.Core.MediaBlocks.VideoProcessing.SimpleVideoMarkBlock class. Creates a video watermarking block ready to embed invisible digital marks into video streams.

public SimpleVideoMarkBlock(ulong patternData = 10)

Parameters

patternData ulong

The pattern data value to embed (default is 10).

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[]

PatternData

Gets or sets the pattern data value to embed in the video stream. This unique identifier will be invisibly embedded in the video frames.

public ulong PatternData { get; set; }

Property Value

ulong

Type

Gets the type.

public override MediaBlockType Type { get; }

Property Value

MediaBlockType

Methods

Build()

Constructs and initializes the simple video mark filter and its associated GStreamer elements. This method creates the filter, establishes input and output pads, and prepares the block for embedding invisible watermarks into video streams.

public override bool Build()

Returns

bool

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

CleanUp()

Releases all resources and performs cleanup operations for this simple video mark 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 simple video mark filter element.

public BaseElement GetCore()

Returns

BaseElement

The BaseElement wrapper instance that encapsulates the GStreamer simple video mark filter.

GetElement()

Gets the underlying GStreamer element that performs the video watermarking.

public Element GetElement()

Returns

Element

The GStreamer Element instance representing the simple video mark filter.

IsAvailable()

Determines whether the simple video mark filter is available on the current system. This checks if the required GStreamer videosignal plugins are installed and accessible. The correct NuGet SDK redistribution package should be included in your project.

public static bool IsAvailable()

Returns

bool

true if the simple video mark filter is available and can be used; otherwise, false.

IMediaBlockInternals.SetContext(MediaBlocksPipeline)

Associates this simple video mark 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