CoreVideo Namespace

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The CoreVideo namespace provides low-level support for capturing and manipulating video streams.

Classes

Name	Description
CVBuffer	A Core Video data buffer, containing video, audio, or other type of data.
CVDisplayLink
CVImageBuffer	A CVBuffer that stores image data.
CVImageBufferAlphaChannelModeExtensions	Extension methods for the CVImageBufferAlphaChannelMode enumeration.
CVImageBufferColorPrimariesExtensions	Extension methods for the CVImageBufferColorPrimaries enumeration.
CVImageBufferDisplayMaskRectangle
CVImageBufferDisplayMaskRectangleKeys
CVImageBufferTransferFunctionExtensions	Extension methods for the CVImageBufferTransferFunction enumeration.
CVImageBufferYCbCrMatrixExtensions	Extension methods for the CVImageBufferYCbCrMatrix enumeration.
CVMetalBuffer	A CVPixelBuffer wrapped in a Metal based buffer.
CVMetalBufferCache	A cache used to manage CVMetalBuffer instances.
CVMetalBufferCacheAttributes
CVMetalTexture	This type exposes a CoreVideo buffer as a Metal texture.
CVMetalTextureAttributes
CVMetalTextureCache	Cache to manage CVMetalTexture objects.
CVOpenGLESTexture
CVOpenGLESTextureCache
CVPixelBuffer	A CVImageBuffer that holds pixels.
CVPixelBufferAttributes	Manages the attributes associated with CVPixelBuffer.
CVPixelBufferPool	A reusable set of CVPixelBuffers.
CVPixelBufferPoolAllocationSettings	Manages pixel buffer pool allocation settings.
CVPixelBufferPoolSettings	Manages pixel buffer settings.
CVPixelFormatComponentRange
CVPixelFormatComponentRangeKeys
CVPixelFormatComponentRangeValuesExtensions	Extension methods for the CVPixelFormatComponentRangeValues enumeration.
CVPixelFormatDescription	A class that supports the definition of customer pixel formats.
CVPixelFormatKeys
CVPixelFormatTypeExtensions

Structs

Name	Description
CVFillExtendedPixelsCallBackData	Encapsulates the description of a custom extended-pixel fill algorithm.
CVFillExtendedPixelsCallBackDataStruct
CVPlanarComponentInfo	A struct that describes planar components.
CVPlanarPixelBufferInfo	A struct that holds the CVPlanarComponentInfos of a planar buffer.
CVPlanarPixelBufferInfo_YCbCrBiPlanar	Implements a YCbCr biplanar buffer description.
CVPlanarPixelBufferInfo_YCbCrPlanar	A struct that defines the CVPlanarComponentInfos of a YCbCr planar buffer.
CVSMPTETime	Encodes an SMPTE timestamp.
CVTime	CoreVideo time representation.
CVTimeStamp	A struct that describes a display timestamp.

Enums

Name	Description
CVAttachmentMode	An enumeration whose values specify whether a buffer attachment should or should not propagate.
CVImageBufferAlphaChannelMode
CVImageBufferColorPrimaries
CVImageBufferTransferFunction
CVImageBufferYCbCrMatrix
CVOptionFlags	A flagging enumeration. Currently only contains a `None` value of 0.
CVPixelBufferLock	An enumeration that flags whether a CVPixelBuffer is read-only or not.
CVPixelBufferPoolFlushFlags	Defines an option for Flush(CVPixelBufferPoolFlushFlags).
CVPixelFormatComponentRangeValues
CVPixelFormatType	An enumeration of known pixel formats.
CVReturn	Possible status codes for CoreVideo functions.
CVSMPTETimeFlags	An enumeration whose values specify the SMPTE time state.
CVSMPTETimeType	An enumeration whose values specify SMPTE timecode types.
CVTimeFlags	An enumeration that can flag whether a CVTime is unknown.
CVTimeStampFlags	An enumeration whose values can flag validity of a timestamp or field in a CVTimeStamp.
CVVersatileBayerPattern

Delegates

Name	Description
CVDisplayLink.DisplayLinkOutputCallback
CVFillExtendedPixelsCallBack	A delegate that defines the function used to pad buffers that use a custom pixel format.

Remarks

CoreVideo provides a pipeline model for digital video. It defines types for representing pixel buffers, display links, and time stamps, enabling efficient handling of video data throughout the system.

Key types in this namespace include CVPixelBuffer for managing pixel data, CVDisplayLink for synchronizing rendering with display refresh rates, and various buffer pool and texture cache types for optimizing video memory management.