Class NullVideoSource

A video source that raises nothing.

Inheritance
System.Object
Serializable
Dynamic
MediaSourceBase
MediaSource<IVideoOutput, IVideoInput, IVideoInputCollection, VideoSource, VideoFrame, VideoBuffer, VideoBufferCollection, VideoFormat>
VideoSource
NullVideoSource
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: FM.LiveSwitch
Assembly: FM.LiveSwitch.dll
Syntax
public class NullVideoSource : VideoSource, IVideoOutput, IMediaOutput<IVideoOutput, IVideoInput, VideoFrame, VideoBuffer, VideoBufferCollection, VideoFormat>, IOutput<IVideoOutput, IVideoInput, VideoFrame, VideoBuffer, VideoBufferCollection, VideoFormat>, IVideoElement, IMediaElement, IElement

Constructors

NullVideoSource(VideoFormat)

Initializes a new NullVideoSource.

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

The output format.

NullVideoSource(VideoFormat, VideoConfig)

Initializes a new NullVideoSource.

Declaration
public NullVideoSource(VideoFormat outputFormat, VideoConfig config)
Parameters
Type Name Description
VideoFormat outputFormat

The output format.
VideoConfig config

The configuration.

Properties

CanChangeBitrate

Gets whether this source can change the output bitrate.

Declaration
protected override bool CanChangeBitrate { 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>.CanChangeBitrate

CanPauseBitrate

Gets whether this source can pause the output bitrate.

Declaration
protected override bool CanPauseBitrate { 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>.CanPauseBitrate

Config

Gets or sets the current config. A value of null indicates unset (pass-through).

Declaration
public VideoConfig Config { get; protected set; }
Property Value
Type Description
VideoConfig

FrameRate

Gets or sets the current frame-rate, in fps. A value of -1 indicates unset, and will default to the target frame-rate.

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

InputRtpStreamId

Gets or sets the input RTP stream identifier.

Declaration
public virtual string InputRtpStreamId { get; set; }
Property Value
Type Description
System.String

InputSynchronizationSource

Gets or sets the input synchronization source.

Declaration
public virtual long InputSynchronizationSource { get; set; }
Property Value
Type Description
System.Int64

Label

Gets a label that identifies this class.

Declaration
public override string Label { 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>.Label

MaxFrameRate

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

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

MaxOutputFrameRate

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

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

MaxOutputSize

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

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

MaxSize

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

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

MaxSupportedFrameRate

Gets the maximum supported frame-rate, in fps. A value of -1 indicates unset (no maximum).

Declaration
public virtual double MaxSupportedFrameRate { get; }
Property Value
Type Description
System.Double

MaxSupportedSize

Gets the maximum supported size. A value of null indicates unset (no maximum).

Declaration
public virtual Size MaxSupportedSize { get; }
Property Value
Type Description
Size

MinFrameRate

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

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

MinOutputFrameRate

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

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

MinOutputSize

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

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

MinSize

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

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

MinSupportedFrameRate

Gets the minimum supported frame-rate, in fps. A value of -1 indicates unset (no minimum).

Declaration
public virtual double MinSupportedFrameRate { get; }
Property Value
Type Description
System.Double

MinSupportedSize

Gets the minimum supported size. A value of null indicates unset (no minimum).

Declaration
public virtual Size MinSupportedSize { get; }
Property Value
Type Description
Size

Size

Gets or sets the current size. A value of null indicates unset, and will default to the target size.

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

StaticOutputFrameRate

Gets or sets whether MinOutputFrameRate and MaxOutputFrameRate should return MinSupportedFrameRate and MaxSupportedFrameRate, respectively, or response to changes in MinFrameRate and MaxFrameRate.

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

StaticOutputSize

Gets or sets whether MinOutputSize and MaxOutputSize should return MinSupportedSize and MaxSupportedSize, respectively, or response to changes in MinSize and MaxSize.

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

TargetConfig

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

Declaration
public VideoConfig TargetConfig { get; set; }
Property Value
Type Description
VideoConfig

TargetFrameRate

Gets or sets the target frame-rate, in fps.

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

TargetOutputFrameRate

Gets or sets the target output frame-rate, in fps.

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

TargetOutputSize

Gets or sets the target output size.

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

TargetSize

Gets or sets the target size.

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

Methods

DoDestroy()

Destroys this instance.

Declaration
protected override void DoDestroy()
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>.DoDestroy()

DoStart()

Starts the source.

Declaration
protected override Future<object> DoStart()
Returns
Type Description
Future<System.Object>
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>.DoStart()

DoStop()

Stops the source.

Declaration
protected override Future<object> DoStop()
Returns
Type Description
Future<System.Object>
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>.DoStop()

GenerateAndProcessRawFrame()

Generates and processes a raw frame.

Declaration
public virtual void GenerateAndProcessRawFrame()

ProcessControlFrameResponse(MediaControlFrame)

Processes a control frame response by raising it.

Declaration
public virtual void ProcessControlFrameResponse(MediaControlFrame controlFrameResponse)
Parameters
Type Name Description
MediaControlFrame controlFrameResponse

The control frame response.

ProcessControlFrameResponses(MediaControlFrame[])

Processes control frame responses by raising them.

Declaration
public virtual void ProcessControlFrameResponses(MediaControlFrame[] controlFrameResponses)
Parameters
Type Name Description
MediaControlFrame[] controlFrameResponses

The control frame responses.

ProcessFrame(VideoFrame)

Processes a frame by raising it.

Declaration
public virtual void ProcessFrame(VideoFrame frame)
Parameters
Type Name Description
VideoFrame frame

The frame.

UpdateCanChangeBitrate(Boolean)

Sets whether this source can change the output bitrate.

Declaration
public void UpdateCanChangeBitrate(bool canChangeBitrate)
Parameters
Type Name Description
System.Boolean canChangeBitrate

Whether this source can change the output bitrate.

UpdateCanPauseBitrate(Boolean)

Sets whether this source can pause the output bitrate.

Declaration
public void UpdateCanPauseBitrate(bool canPauseBitrate)
Parameters
Type Name Description
System.Boolean canPauseBitrate

Whether this source can pause the output bitrate.

UpdateMaxOutputBitrate(Int32)

Sets the maximum allowed output bitrate, in kbps. A value of -1 indicates unset (no maximum).

Declaration
public virtual void UpdateMaxOutputBitrate(int maxOutputBitrate)
Parameters
Type Name Description
System.Int32 maxOutputBitrate

The maximum allowed output bitrate, in kbps.

UpdateMaxOutputEncoding(EncodingInfo)

Sets the maximum allowed output encoding. A value of null indicates unset (no maximum).

Declaration
public virtual void UpdateMaxOutputEncoding(EncodingInfo maxOutputEncoding)
Parameters
Type Name Description
EncodingInfo maxOutputEncoding

The maximum allowed output encoding.

UpdateMaxOutputFrameRate(Double)

Sets the maximum allowed output frame-rate. A value of -1 indicates unset (no maximum).

Declaration
public virtual void UpdateMaxOutputFrameRate(double maxOutputFrameRate)
Parameters
Type Name Description
System.Double maxOutputFrameRate

The maximum allowed output frame-rate.

UpdateMaxOutputScale(Double)

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

Declaration
public virtual void UpdateMaxOutputScale(double maxOutputScale)
Parameters
Type Name Description
System.Double maxOutputScale

The maximum allowed output scale.

UpdateMaxOutputSize(Size)

Sets the maximum allowed output size. A value of -1 indicates unset (no maximum).

Declaration
public virtual void UpdateMaxOutputSize(Size maxOutputSize)
Parameters
Type Name Description
Size maxOutputSize

The maximum allowed output size.

UpdateMinOutputBitrate(Int32)

Sets the minimum allowed output bitrate, in kbps. A value of -1 indicates unset (no minimum).

Declaration
public virtual void UpdateMinOutputBitrate(int minOutputBitrate)
Parameters
Type Name Description
System.Int32 minOutputBitrate

The minimum allowed output bitrate, in kbps.

UpdateMinOutputEncoding(EncodingInfo)

Sets the minimum allowed output encoding. A value of null indicates unset (no minimum).

Declaration
public virtual void UpdateMinOutputEncoding(EncodingInfo minOutputEncoding)
Parameters
Type Name Description
EncodingInfo minOutputEncoding

The minimum allowed output encoding.

UpdateMinOutputFrameRate(Double)

Sets the minimum allowed output frame-rate. A value of -1 indicates unset (no minimum).

Declaration
public virtual void UpdateMinOutputFrameRate(double minOutputFrameRate)
Parameters
Type Name Description
System.Double minOutputFrameRate

The minimum allowed output frame-rate.

UpdateMinOutputScale(Double)

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

Declaration
public virtual void UpdateMinOutputScale(double minOutputScale)
Parameters
Type Name Description
System.Double minOutputScale

The minimum allowed output scale.

UpdateMinOutputSize(Size)

Sets the minimum allowed output size. A value of -1 indicates unset (no minimum).

Declaration
public virtual void UpdateMinOutputSize(Size minOutputSize)
Parameters
Type Name Description
Size minOutputSize

The minimum allowed output size.

UpdateOutputSynchronizable(Boolean)

Sets whether output is synchronizable.

Declaration
public virtual void UpdateOutputSynchronizable(bool outputSynchronizable)
Parameters
Type Name Description
System.Boolean outputSynchronizable

Whether output is synchronizable.

UpdateSystemDelay(Int64)

Sets the system delay in ticks.

Declaration
public virtual void UpdateSystemDelay(long systemDelay)
Parameters
Type Name Description
System.Int64 systemDelay

The system delay.

UpdateTargetOutputBitrate(Int32)

Sets the target output bitrate, in kbps. A value of -1 indicates unset (no target).

Declaration
public virtual void UpdateTargetOutputBitrate(int targetOutputBitrate)
Parameters
Type Name Description
System.Int32 targetOutputBitrate

The target output bitrate, in kbps.

UpdateTargetOutputEncoding(EncodingInfo)

Sets the target output encoding. A value of null indicates unset (no target).

Declaration
public virtual void UpdateTargetOutputEncoding(EncodingInfo targetOutputEncoding)
Parameters
Type Name Description
EncodingInfo targetOutputEncoding

The target output encoding.

UpdateTargetOutputFrameRate(Double)

Sets the target output frame-rate. A value of -1 indicates unset (no target).

Declaration
public virtual void UpdateTargetOutputFrameRate(double targetOutputFrameRate)
Parameters
Type Name Description
System.Double targetOutputFrameRate

The target output frame-rate.

UpdateTargetOutputScale(Double)

Sets the target output scale. A value of -1 indicates unset (no target).

Declaration
public virtual void UpdateTargetOutputScale(double targetOutputScale)
Parameters
Type Name Description
System.Double targetOutputScale

The target output scale.

UpdateTargetOutputSize(Size)

Sets the target output size. A value of -1 indicates unset (no target).

Declaration
public virtual void UpdateTargetOutputSize(Size targetOutputSize)
Parameters
Type Name Description
Size targetOutputSize

The target output size.

UpdateVideoType(VideoType)

Sets the video type.

Declaration
public void UpdateVideoType(VideoType videoType)
Parameters
Type Name Description
VideoType videoType

The video type.

Implements