Class VideoBuffer

A video buffer.

Inheritance
System.Object
Foundation.NSObject
Serializable
Dynamic
MediaBuffer<VideoFormat, VideoBuffer>
VideoBuffer
PacketizedVideoBuffer
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 class VideoBuffer : MediaBuffer<VideoFormat, VideoBuffer>, IEquatable<NSObject>, INSObjectProtocol, INativeObject, IDisposable

Constructors

VideoBuffer()

Initializes a new instance of the VideoBuffer class.

Declaration
protected VideoBuffer()

VideoBuffer(Int32, Int32, DataBuffer, VideoFormat)

Initializes a new instance of the VideoBuffer class.

Declaration
public VideoBuffer(int width, int height, DataBuffer dataBuffer, VideoFormat format)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
DataBuffer dataBuffer

The data buffer.
VideoFormat format

The format.

VideoBuffer(Int32, Int32, DataBuffer[], VideoFormat)

Initializes a new instance of the VideoBuffer class.

Declaration
public VideoBuffer(int width, int height, DataBuffer[] dataBuffers, VideoFormat format)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
DataBuffer[] dataBuffers

The data buffers.
VideoFormat format

The format.

VideoBuffer(Int32, Int32, Int32, DataBuffer, VideoFormat)

Initializes a new instance of the VideoBuffer class.

Declaration
public VideoBuffer(int width, int height, int stride, DataBuffer dataBuffer, VideoFormat format)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.Int32 stride

The stride.
DataBuffer dataBuffer

The data buffer.
VideoFormat format

The format.

VideoBuffer(Int32, Int32, Int32[], DataBuffer[], VideoFormat)

Initializes a new instance of the VideoBuffer class.

Declaration
public VideoBuffer(int width, int height, int[] strides, DataBuffer[] dataBuffers, VideoFormat format)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.Int32[] strides

The strides.
DataBuffer[] dataBuffers

The data buffers.
VideoFormat format

The format.

Properties

Height

Gets or sets the height.

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

HorizontallyMirrored

Gets or sets whether this buffer should be mirrored over the X axis.

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

InversionRequired

Gets whether inversion is required to reset the mirroring of this buffer.

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

IsAbgr

Gets a value indicating whether this buffer has ABGR video.

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

IsArgb

Gets a value indicating whether this buffer has ARGB video.

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

IsBgr

Gets a value indicating whether this buffer has BGR video.

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

IsBgra

Gets a value indicating whether this buffer has BGRA video.

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

IsH264

Gets a value indicating whether this buffer has H.264 video.

Declaration
public bool IsH264 { get; }
Property Value
Type Description
System.Boolean

IsH265

Gets a value indicating whether this buffer has H.265 video.

Declaration
public bool IsH265 { get; }
Property Value
Type Description
System.Boolean

IsI420

Gets a value indicating whether this buffer has I420 video.

Declaration
public bool IsI420 { get; }
Property Value
Type Description
System.Boolean

IsKeyFrame

Gets a value indicating whether this buffer contains a keyframe.

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

IsMuted

Gets a value indicating whether this instance has been muted.

Declaration
public override bool IsMuted { get; }
Property Value
Type Description
System.Boolean
Overrides
FM.LiveSwitch.MediaBuffer<FM.LiveSwitch.VideoFormat, FM.LiveSwitch.VideoBuffer>.IsMuted

IsNv12

Gets a value indicating whether this buffer has NV12 video.

Declaration
public bool IsNv12 { get; }
Property Value
Type Description
System.Boolean

IsNv21

Gets a value indicating whether this buffer has NV21 video.

Declaration
public bool IsNv21 { get; }
Property Value
Type Description
System.Boolean

IsPacked

Gets a value indicating whether the data is packed into a single data buffer.

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

IsPlanar

Gets a value indicating whether the data is spread across multiple data buffers (planes).

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

IsRaw

Gets a value indicating whether this buffer has raw video.

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

IsRgb

Gets a value indicating whether this buffer has RGB video.

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

IsRgba

Gets a value indicating whether this buffer has RGBA video.

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

IsRgbaType

Gets a value indicating whether this buffer has raw RGBA, BGRA, ARGB, or ABGR video.

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

IsRgbType

Gets a value indicating whether this buffer has raw RGB or BGR video.

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

IsVp8

Gets a value indicating whether this buffer has VP8 video.

Declaration
public bool IsVp8 { get; }
Property Value
Type Description
System.Boolean

IsVp9

Gets a value indicating whether this buffer has VP9 video.

Declaration
public bool IsVp9 { get; }
Property Value
Type Description
System.Boolean

IsYuvType

Gets a value indicating whether this buffer has raw I420, YV12, NV12, or NV21 video.

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

IsYv12

Gets a value indicating whether this buffer has YV12 video.

Declaration
public bool IsYv12 { get; }
Property Value
Type Description
System.Boolean

Orientation

Gets or sets the desired orientation of the buffer.

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

RotationRequired

Gets whether rotation is required to reset the mirroring and orientation of this buffer.

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

Stride

Gets or sets the stride.

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

Strides

Gets or sets the strides.

Declaration
public int[] Strides { get; set; }
Property Value
Type Description
System.Int32[]

TransformRequired

Gets a boolean value on whether the buffer needs to be transformed.

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

VerticallyMirrored

Gets or sets whether this buffer should be mirrored over the Y axis.

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

Width

Gets or sets the width.

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

Methods

Clone()

Clones this instance.

Declaration
public override VideoBuffer Clone()
Returns
Type Description
VideoBuffer
Overrides
FM.LiveSwitch.MediaBuffer<FM.LiveSwitch.VideoFormat, FM.LiveSwitch.VideoBuffer>.Clone()

Convert(VideoFormat)

Creates a new video buffer using the specified format.

Declaration
public VideoBuffer Convert(VideoFormat format)
Parameters
Type Name Description
VideoFormat format

The format.
Returns
Type Description
VideoBuffer

Convert(VideoFormat, DataBuffer)

Creates a new video buffer using the specified format.

Declaration
public VideoBuffer Convert(VideoFormat format, DataBuffer dataBuffer)
Parameters
Type Name Description
VideoFormat format

The format.
DataBuffer dataBuffer

The data buffer.
Returns
Type Description
VideoBuffer

Convert(VideoFormat, Boolean)

Creates a new video buffer using the specified format.

Declaration
public VideoBuffer Convert(VideoFormat format, bool usePool)
Parameters
Type Name Description
VideoFormat format

The format.
System.Boolean usePool

Whether to use the DataBufferPool.
Returns
Type Description
VideoBuffer

CopyTransformationAttributes(VideoBuffer)

Copy the transformation attributes from another video buffer.

Declaration
public void CopyTransformationAttributes(VideoBuffer sourceBuffer)
Parameters
Type Name Description
VideoBuffer sourceBuffer

CreateBlack(Int32, Int32, String)

Creates a black (0, 0, 0) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateBlack(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateBlue(Int32, Int32, String)

Creates a blue (0, 0, 255) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateBlue(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateCustom(Int32, Int32, Int32, Int32, Int32, String)

Creates a custom video buffer with the specified width/height and red/green/blue values for the specified format name. If the format is not supported, returns null.

Declaration
public static VideoBuffer CreateCustom(int width, int height, int red, int green, int blue, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.Int32 red

The red value.
System.Int32 green

The green value.
System.Int32 blue

The blue value.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateCustom(Int32, Int32, Int32, Int32, Int32, String, DataBuffer)

Creates a custom video buffer with the specified width/height and red/green/blue values for the specified format name. If the format is not supported, returns null.

Declaration
public static VideoBuffer CreateCustom(int width, int height, int red, int green, int blue, string formatName, DataBuffer buffer)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.Int32 red

The red value.
System.Int32 green

The green value.
System.Int32 blue

The blue value.
System.String formatName

Name of the format.
DataBuffer buffer

The output data buffer.
Returns
Type Description
VideoBuffer

CreateCyan(Int32, Int32, String)

Creates a cyan (0, 255, 255) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateCyan(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateDarkBlue(Int32, Int32, String)

Creates a dark blue (0, 0, 128) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateDarkBlue(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateDarkGreen(Int32, Int32, String)

Creates a dark green (0, 128, 0) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateDarkGreen(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateDarkRed(Int32, Int32, String)

Creates a dark red (128, 0, 0) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateDarkRed(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateGray(Int32, Int32, String)

Creates a gray (255, 255, 255) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateGray(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateGreen(Int32, Int32, String)

Creates a green (0, 255, 0) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateGreen(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateInstance()

Creates a new instance.

Declaration
protected override VideoBuffer CreateInstance()
Returns
Type Description
VideoBuffer
Overrides
FM.LiveSwitch.MediaBuffer<FM.LiveSwitch.VideoFormat, FM.LiveSwitch.VideoBuffer>.CreateInstance()

CreateMagenta(Int32, Int32, String)

Creates a magenta (255, 0, 255) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateMagenta(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateOlive(Int32, Int32, String)

Creates an olive (128, 128, 0) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateOlive(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreatePurple(Int32, Int32, String)

Creates a purple (128, 0, 128) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreatePurple(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateRed(Int32, Int32, String)

Creates a red (255, 0, 0) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateRed(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateTeal(Int32, Int32, String)

Creates a teal (0, 128, 128) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateTeal(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateWhite(Int32, Int32, String)

Creates a white (255, 255, 255) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateWhite(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

CreateYellow(Int32, Int32, String)

Creates a yellow (255, 255, 0) video buffer with the specified width/height.

Declaration
public static VideoBuffer CreateYellow(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
VideoBuffer

FromJson(String)

Deserializes an instance from JSON.

Declaration
public static VideoBuffer FromJson(string videoBufferJson)
Parameters
Type Name Description
System.String videoBufferJson

The video buffer JSON.
Returns
Type Description
VideoBuffer

FromJsonArray(String)

Deserializes an array of instances from JSON.

Declaration
public static VideoBuffer[] FromJsonArray(string videoBuffersJson)
Parameters
Type Name Description
System.String videoBuffersJson

The video buffers JSON.
Returns
Type Description
VideoBuffer[]

GetAValue(Int32)

Gets the A value at a given index. If the video buffer is not RGBA-type, then this will return 255.

Declaration
public int GetAValue(int index)
Parameters
Type Name Description
System.Int32 index

The index.
Returns
Type Description
System.Int32

The A value.

GetBValue(Int32)

Gets the B value at a given index.

Declaration
public int GetBValue(int index)
Parameters
Type Name Description
System.Int32 index

The index.
Returns
Type Description
System.Int32

The B value, or -1 if the video buffer is not RGB/RGBA-type.

GetGValue(Int32)

Gets the G value at a given index.

Declaration
public int GetGValue(int index)
Parameters
Type Name Description
System.Int32 index

The index.
Returns
Type Description
System.Int32

The G value, or -1 if the video buffer is not RGB/RGBA-type.

GetMinimumBufferLength(Int32, Int32, String)

Gets the minimum data buffer length for a given width, height, and format.

Declaration
public static int GetMinimumBufferLength(int width, int height, string formatName)
Parameters
Type Name Description
System.Int32 width

The width.
System.Int32 height

The height.
System.String formatName

Name of the format.
Returns
Type Description
System.Int32

GetRValue(Int32)

Gets the R value at a given index.

Declaration
public int GetRValue(int index)
Parameters
Type Name Description
System.Int32 index

The index.
Returns
Type Description
System.Int32

The R value, or -1 if the video buffer is not RGB/RGBA-type.

GetUValue(Int32)

Gets the U value at a given index.

Declaration
public int GetUValue(int index)
Parameters
Type Name Description
System.Int32 index

The index.
Returns
Type Description
System.Int32

The U value, or -1 if the video buffer is not YUV-type.

GetVValue(Int32)

Gets the V value at a given index.

Declaration
public int GetVValue(int index)
Parameters
Type Name Description
System.Int32 index

The index.
Returns
Type Description
System.Int32

The V value, or -1 if the video buffer is not YUV-type.

GetYValue(Int32)

Gets the Y value at a given index.

Declaration
public int GetYValue(int index)
Parameters
Type Name Description
System.Int32 index

The index.
Returns
Type Description
System.Int32

The Y value, or -1 if the video buffer is not YUV-type.

Mute()

Mutes this instance. This is a one-way operation that clears the underlying data buffer.

Declaration
public override bool Mute()
Returns
Type Description
System.Boolean
Overrides
FM.LiveSwitch.MediaBuffer<FM.LiveSwitch.VideoFormat, FM.LiveSwitch.VideoBuffer>.Mute()

ResetTransformationAttributes()

Resets the transformation attributes back to default values.

Declaration
public void ResetTransformationAttributes()

SetAValue(Int32, Int32)

Gets the A value at a given index. If the video buffer is not RGBA-type, then this will return false.

Declaration
public bool SetAValue(int aValue, int index)
Parameters
Type Name Description
System.Int32 aValue

The A value.
System.Int32 index

The index.
Returns
Type Description
System.Boolean

true if the video buffer is RGBA-type.

SetBValue(Int32, Int32)

Gets the B value at a given index.

Declaration
public bool SetBValue(int bValue, int index)
Parameters
Type Name Description
System.Int32 bValue

The B value.
System.Int32 index

The index.
Returns
Type Description
System.Boolean

true if the video buffer is RGB/RGBA-type.

SetGValue(Int32, Int32)

Sets the G value at a given index.

Declaration
public bool SetGValue(int gValue, int index)
Parameters
Type Name Description
System.Int32 gValue

The G value.
System.Int32 index

The index.
Returns
Type Description
System.Boolean

true if the video buffer is RGB/RGBA-type.

SetRValue(Int32, Int32)

Sets the R value at a given index.

Declaration
public bool SetRValue(int rValue, int index)
Parameters
Type Name Description
System.Int32 rValue

The R value.
System.Int32 index

The index.
Returns
Type Description
System.Boolean

true if the video buffer is RGB/RGBA-type.

SetUValue(Int32, Int32)

Sets the U value at a given index.

Declaration
public bool SetUValue(int uValue, int index)
Parameters
Type Name Description
System.Int32 uValue

The U value.
System.Int32 index

The index.
Returns
Type Description
System.Boolean

true if the video buffer is YUV-type.

SetVValue(Int32, Int32)

Sets the V value at a given index.

Declaration
public bool SetVValue(int vValue, int index)
Parameters
Type Name Description
System.Int32 vValue

The V value.
System.Int32 index

The index.
Returns
Type Description
System.Boolean

true if the video buffer is YUV-type.

SetYValue(Int32, Int32)

Sets the Y value at a given index.

Declaration
public bool SetYValue(int yValue, int index)
Parameters
Type Name Description
System.Int32 yValue

The Y value.
System.Int32 index

The index.
Returns
Type Description
System.Boolean

true if the video buffer is YUV-type.

ToJson()

Serializes this instance to JSON.

Declaration
public string ToJson()
Returns
Type Description
System.String

ToJson(VideoBuffer)

Serializes an instance to JSON.

Declaration
public static string ToJson(VideoBuffer videoBuffer)
Parameters
Type Name Description
VideoBuffer videoBuffer

The video buffer.
Returns
Type Description
System.String

ToJsonArray(VideoBuffer[])

Serializes an array of instances to JSON.

Declaration
public static string ToJsonArray(VideoBuffer[] videoBuffers)
Parameters
Type Name Description
VideoBuffer[] videoBuffers

The video buffers.
Returns
Type Description
System.String

ToPacked()

Creates a packed representation of this planar buffer, if in YUV-planar format. Otherwise, returns the current buffer. If the planar data is not contiguous in memory, new memory will be allocated for the packed representation.

Declaration
public VideoBuffer ToPacked()
Returns
Type Description
VideoBuffer

ToPacked(Boolean)

Creates a packed representation of this planar buffer, if in YUV-planar format. Otherwise, returns the current buffer. If the planar data is not contiguous in memory, new memory will be allocated or taken from the data buffer pool for the packed representation.

Declaration
public VideoBuffer ToPacked(bool usePool)
Parameters
Type Name Description
System.Boolean usePool

Whether to use the data buffer pool for any required memory allocations.
Returns
Type Description
VideoBuffer

ToPlanar()

Creates a planar representation of this packed buffer, if in YUV-packed format. Otherwise, returns the current buffer.

Declaration
public VideoBuffer ToPlanar()
Returns
Type Description
VideoBuffer

Implements

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