Class VideoSource

A video source.

Inheritance
System.Object
Foundation.NSObject
Serializable
Dynamic
MediaSourceBase
MediaSource<IVideoOutput, IVideoInput, IVideoInputCollection, VideoSource, VideoFrame, VideoBuffer, VideoBufferCollection, VideoFormat>
VideoSource
CameraSourceBase
VideoSource
NullVideoSource
ScreenSourceBase
VideoSource
Implements
System.IEquatable<Foundation.NSObject>
Foundation.INSObjectProtocol
ObjCRuntime.INativeObject
System.IDisposable
Inherited Members
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Namespace: FM.LiveSwitch
Assembly: FM.LiveSwitch.dll
Syntax
public abstract class VideoSource : MediaSource<IVideoOutput, IVideoInput, IVideoInputCollection, VideoSource, VideoFrame, VideoBuffer, VideoBufferCollection, VideoFormat>, IEquatable<NSObject>, INSObjectProtocol, INativeObject, IDisposable, IVideoOutput, IMediaOutput<IVideoOutput, IVideoInput, VideoFrame, VideoBuffer, VideoBufferCollection, VideoFormat>, IOutput<IVideoOutput, IVideoInput, VideoFrame, VideoBuffer, VideoBufferCollection, VideoFormat>, IVideoElement, IMediaElement, IElement

Constructors

VideoSource(VideoFormat)

Initializes a new instance of the VideoSource class.

Declaration
public VideoSource(VideoFormat outputFormat)
Parameters
Type Name Description
VideoFormat outputFormat

The output format.

Properties

AverageFrameRate

Gets the average frame rate.

Declaration
public int AverageFrameRate { get; }
Property Value
Type Description
System.Int32

Content

Gets the content descriptor.

Declaration
public override string Content { get; }
Property Value
Type Description
System.String
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IVideoOutput, FM.LiveSwitch.IVideoInput, FM.LiveSwitch.IVideoInputCollection, FM.LiveSwitch.VideoSource, FM.LiveSwitch.VideoFrame, FM.LiveSwitch.VideoBuffer, FM.LiveSwitch.VideoBufferCollection, FM.LiveSwitch.VideoFormat>.Content

FrameCount

Gets the frame count.

Declaration
public long FrameCount { get; }
Property Value
Type Description
System.Int64

MaxOutputEncoding

Gets or sets the maximum allowed output encoding.

Declaration
public override EncodingInfo MaxOutputEncoding { get; protected set; }
Property Value
Type Description
EncodingInfo
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IVideoOutput, FM.LiveSwitch.IVideoInput, FM.LiveSwitch.IVideoInputCollection, FM.LiveSwitch.VideoSource, FM.LiveSwitch.VideoFrame, FM.LiveSwitch.VideoBuffer, FM.LiveSwitch.VideoBufferCollection, FM.LiveSwitch.VideoFormat>.MaxOutputEncoding

MaxOutputFrameRate

Gets or sets the maximum allowed output frame-rate, in fps. A value of -1 indicates unset (no maximum).

Declaration
public virtual double MaxOutputFrameRate { get; protected set; }
Property Value
Type Description
System.Double

MaxOutputHeight

Gets the maximum allowed output height. A value of -1 indicates unset (no minimum).

Declaration
public virtual int MaxOutputHeight { get; }
Property Value
Type Description
System.Int32

MaxOutputScale

Gets or sets the maximum allowed output scale. A value of -1 indicates unset (no maximum).

Declaration
public virtual double MaxOutputScale { get; protected set; }
Property Value
Type Description
System.Double

MaxOutputSize

Gets or sets the maximum allowed output size. A value of null indicates unset (no maximum).

Declaration
public virtual Size MaxOutputSize { get; protected set; }
Property Value
Type Description
Size

MaxOutputWidth

Gets the maximum allowed output width. A value of -1 indicates unset (no minimum).

Declaration
public virtual int MaxOutputWidth { get; }
Property Value
Type Description
System.Int32

MinOutputEncoding

Gets or sets the minimum allowed output encoding.

Declaration
public override EncodingInfo MinOutputEncoding { get; protected set; }
Property Value
Type Description
EncodingInfo
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IVideoOutput, FM.LiveSwitch.IVideoInput, FM.LiveSwitch.IVideoInputCollection, FM.LiveSwitch.VideoSource, FM.LiveSwitch.VideoFrame, FM.LiveSwitch.VideoBuffer, FM.LiveSwitch.VideoBufferCollection, FM.LiveSwitch.VideoFormat>.MinOutputEncoding

MinOutputFrameRate

Gets or sets the minimum allowed output frame-rate, in fps. A value of -1 indicates unset (no minimum).

Declaration
public virtual double MinOutputFrameRate { get; protected set; }
Property Value
Type Description
System.Double

MinOutputHeight

Gets the minimum allowed output height. A value of -1 indicates unset (no minimum).

Declaration
public virtual int MinOutputHeight { get; }
Property Value
Type Description
System.Int32

MinOutputScale

Gets or sets the minimum allowed output scale. A value of -1 indicates unset (no minimum).

Declaration
public virtual double MinOutputScale { get; protected set; }
Property Value
Type Description
System.Double

MinOutputSize

Gets or sets the minimum allowed output size. A value of null indicates unset (no minimum).

Declaration
public virtual Size MinOutputSize { get; protected set; }
Property Value
Type Description
Size

MinOutputWidth

Gets the minimum allowed output width. A value of -1 indicates unset (no minimum).

Declaration
public virtual int MinOutputWidth { get; }
Property Value
Type Description
System.Int32

OverConstrainedFrameRate

Gets whether the source frame-rate is over-constrained. A source frame-rate is over-constrained if the output frame-rate is over-constrained.

Declaration
public virtual bool OverConstrainedFrameRate { get; }
Property Value
Type Description
System.Boolean

OverConstrainedHeight

Gets whether the source height is over-constrained. A source height is over-constrained if the output height is over-constrained.

Declaration
public virtual bool OverConstrainedHeight { get; }
Property Value
Type Description
System.Boolean

OverConstrainedOutput

Gets whether the output is over-contrained. An output is over-constrained if it's output bitrate, output scale, output frame-rate, output size is over-contrained.

Declaration
public override bool OverConstrainedOutput { get; }
Property Value
Type Description
System.Boolean
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IVideoOutput, FM.LiveSwitch.IVideoInput, FM.LiveSwitch.IVideoInputCollection, FM.LiveSwitch.VideoSource, FM.LiveSwitch.VideoFrame, FM.LiveSwitch.VideoBuffer, FM.LiveSwitch.VideoBufferCollection, FM.LiveSwitch.VideoFormat>.OverConstrainedOutput

OverConstrainedOutputFrameRate

Gets whether the minimum allowed output frame-rate exceeds the maximum allowed output frame-rate.

Declaration
public bool OverConstrainedOutputFrameRate { get; }
Property Value
Type Description
System.Boolean

OverConstrainedOutputHeight

Gets whether the minimum allowed output height exceeds the maximum allowed output height.

Declaration
public bool OverConstrainedOutputHeight { get; }
Property Value
Type Description
System.Boolean

OverConstrainedOutputScale

Gets whether the minimum allowed output scale exceeds the maximum allowed output scale.

Declaration
public bool OverConstrainedOutputScale { get; }
Property Value
Type Description
System.Boolean

OverConstrainedOutputSize

Gets whether the minimum allowed output size exceeds the maximum allowed output size.

Declaration
public bool OverConstrainedOutputSize { get; }
Property Value
Type Description
System.Boolean

OverConstrainedOutputWidth

Gets whether the minimum allowed output width exceeds the maximum allowed output width.

Declaration
public bool OverConstrainedOutputWidth { get; }
Property Value
Type Description
System.Boolean

OverConstrainedScale

Gets whether the source scale is over-constrained. A source scale is over-constrained if the output scale is over-constrained.

Declaration
public virtual bool OverConstrainedScale { get; }
Property Value
Type Description
System.Boolean

OverConstrainedSize

Gets whether the source size is over-constrained. A source size is over-constrained if the output size is over-constrained.

Declaration
public virtual bool OverConstrainedSize { get; }
Property Value
Type Description
System.Boolean

OverConstrainedWidth

Gets whether the source width is over-constrained. A source width is over-constrained if the output width is over-constrained.

Declaration
public virtual bool OverConstrainedWidth { get; }
Property Value
Type Description
System.Boolean

TargetOutputEncoding

Gets or sets the target output encoding.

Declaration
public override EncodingInfo TargetOutputEncoding { get; protected set; }
Property Value
Type Description
EncodingInfo
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IVideoOutput, FM.LiveSwitch.IVideoInput, FM.LiveSwitch.IVideoInputCollection, FM.LiveSwitch.VideoSource, FM.LiveSwitch.VideoFrame, FM.LiveSwitch.VideoBuffer, FM.LiveSwitch.VideoBufferCollection, FM.LiveSwitch.VideoFormat>.TargetOutputEncoding

TargetOutputFrameRate

Gets or sets the target output frame-rate, in fps. A value of -1 indicates unset (no target).

Declaration
public virtual double TargetOutputFrameRate { get; protected set; }
Property Value
Type Description
System.Double

TargetOutputHeight

Gets the target output height. A value of -1 indicates unset (no minimum).

Declaration
public virtual int TargetOutputHeight { get; }
Property Value
Type Description
System.Int32

TargetOutputScale

Gets or sets the target output scale. A value of -1 indicates unset (no target).

Declaration
public virtual double TargetOutputScale { get; protected set; }
Property Value
Type Description
System.Double

TargetOutputSize

Gets or sets the target output size. A value of null indicates unset (no target).

Declaration
public virtual Size TargetOutputSize { get; protected set; }
Property Value
Type Description
Size

TargetOutputWidth

Gets the target output width. A value of -1 indicates unset (no minimum).

Declaration
public virtual int TargetOutputWidth { get; }
Property Value
Type Description
System.Int32

VideoType

Gets or sets the video type.

Declaration
public virtual VideoType VideoType { get; protected set; }
Property Value
Type Description
VideoType

Methods

CreateInputCollection(IVideoOutput)

Creates an input collection.

Declaration
protected override IVideoInputCollection CreateInputCollection(IVideoOutput output)
Parameters
Type Name Description
IVideoOutput output

The source.
Returns
Type Description
IVideoInputCollection
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IVideoOutput, FM.LiveSwitch.IVideoInput, FM.LiveSwitch.IVideoInputCollection, FM.LiveSwitch.VideoSource, FM.LiveSwitch.VideoFrame, FM.LiveSwitch.VideoBuffer, FM.LiveSwitch.VideoBufferCollection, FM.LiveSwitch.VideoFormat>.CreateInputCollection(FM.LiveSwitch.IVideoOutput)

GetFrameRateDistance(Double, Double)

Gets the distance between two frame rates.

Declaration
public double GetFrameRateDistance(double frameRate1, double frameRate2)
Parameters
Type Name Description
System.Double frameRate1

The first frame rate.
System.Double frameRate2

The second frame rate.
Returns
Type Description
System.Double

The positive distance between the two frame rates.

GetSizeDistance(Int32, Int32, Int32, Int32)

Gets the distance between two sizes.

Declaration
public int GetSizeDistance(int width1, int height1, int width2, int height2)
Parameters
Type Name Description
System.Int32 width1

The first width.
System.Int32 height1

The first height.
System.Int32 width2

The second width.
System.Int32 height2

The second height.
Returns
Type Description
System.Int32

The positive linear distance between the two sizes.

OutputCanProcessFrame(IVideoInput)

Determines whether an output can process a frame from this pipe.

Declaration
protected override bool OutputCanProcessFrame(IVideoInput output)
Parameters
Type Name Description
IVideoInput output

The output.
Returns
Type Description
System.Boolean
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IVideoOutput, FM.LiveSwitch.IVideoInput, FM.LiveSwitch.IVideoInputCollection, FM.LiveSwitch.VideoSource, FM.LiveSwitch.VideoFrame, FM.LiveSwitch.VideoBuffer, FM.LiveSwitch.VideoBufferCollection, FM.LiveSwitch.VideoFormat>.OutputCanProcessFrame(FM.LiveSwitch.IVideoInput)

RaiseFrame(VideoFrame)

Raises a frame.

Declaration
protected override void RaiseFrame(VideoFrame frame)
Parameters
Type Name Description
VideoFrame frame

The frame.
Overrides
FM.LiveSwitch.MediaSource<FM.LiveSwitch.IVideoOutput, FM.LiveSwitch.IVideoInput, FM.LiveSwitch.IVideoInputCollection, FM.LiveSwitch.VideoSource, FM.LiveSwitch.VideoFrame, FM.LiveSwitch.VideoBuffer, FM.LiveSwitch.VideoBufferCollection, FM.LiveSwitch.VideoFormat>.RaiseFrame(FM.LiveSwitch.VideoFrame)

Events

OnRaiseSizeChange

Raised when a frame is about to be raised with a size that does not match the prior frame.

Declaration
public event Action1<Size> OnRaiseSizeChange
Event Type
Type Description
Action1<Size>

Implements

System.IEquatable<T>
Foundation.INSObjectProtocol
ObjCRuntime.INativeObject
System.IDisposable