---
title: Core Video Constants
framework: corevideo
role: collectionGroup
role_heading: API Collection
path: corevideo/core-video-constants
---

# Core Video Constants

## Topics

### Constants

- [COREVIDEO_DECLARE_NULLABILITY](corevideo/corevideo_declare_nullability.md)
- [COREVIDEO_FALSE](corevideo/corevideo_false.md)
- [COREVIDEO_SUPPORTS_COLORSPACE](corevideo/corevideo_supports_colorspace.md)
- [COREVIDEO_SUPPORTS_DIRECT3D](corevideo/corevideo_supports_direct3d.md)
- [COREVIDEO_SUPPORTS_DISPLAYLINK](corevideo/corevideo_supports_displaylink.md)
- [COREVIDEO_SUPPORTS_GLES_TEX_IMAGE_IOSURFACE](corevideo/corevideo_supports_gles_tex_image_iosurface.md)
- [COREVIDEO_SUPPORTS_IOSURFACE](corevideo/corevideo_supports_iosurface.md)
- [COREVIDEO_SUPPORTS_IOSURFACE_PREFETCH](corevideo/corevideo_supports_iosurface_prefetch.md)
- [COREVIDEO_SUPPORTS_METAL](corevideo/corevideo_supports_metal.md)
- [COREVIDEO_SUPPORTS_OPENGL](corevideo/corevideo_supports_opengl.md)
- [COREVIDEO_SUPPORTS_OPENGLES](corevideo/corevideo_supports_opengles.md)
- [COREVIDEO_SUPPORTS_PERMANENT_ALLOCATOR](corevideo/corevideo_supports_permanent_allocator.md)
- [COREVIDEO_SUPPORTS_PREFETCH](corevideo/corevideo_supports_prefetch.md)
- [COREVIDEO_TRUE](corevideo/corevideo_true.md)
- [COREVIDEO_USE_DERIVED_ENUMS_FOR_CONSTANTS](corevideo/corevideo_use_derived_enums_for_constants.md)
- [COREVIDEO_USE_EAGLCONTEXT_CLASS_IN_API](corevideo/corevideo_use_eaglcontext_class_in_api.md)
- [kCVImageBufferAlphaChannelModeKey](corevideo/kcvimagebufferalphachannelmodekey.md)
- [kCVImageBufferAlphaChannelMode_PremultipliedAlpha](corevideo/kcvimagebufferalphachannelmode_premultipliedalpha.md)
- [kCVImageBufferAlphaChannelMode_StraightAlpha](corevideo/kcvimagebufferalphachannelmode_straightalpha.md)
- [kCVImageBufferAmbientViewingEnvironmentKey](corevideo/kcvimagebufferambientviewingenvironmentkey.md)
- [kCVImageBufferLogTransferFunctionKey](corevideo/kcvimagebufferlogtransferfunctionkey.md)
- [kCVImageBufferLogTransferFunction_AppleLog](corevideo/kcvimagebufferlogtransferfunction_applelog.md)
- [kCVImageBufferRegionOfInterestKey](corevideo/kcvimagebufferregionofinterestkey.md)
- [kCVImageBufferTransferFunction_Linear](corevideo/kcvimagebuffertransferfunction_linear.md)
- [kCVMetalTextureStorageMode](corevideo/kcvmetaltexturestoragemode.md)
- [kCVPixelBufferProResRAWKey_BlackLevel](corevideo/kcvpixelbufferproresrawkey_blacklevel.md)
- [kCVPixelBufferProResRAWKey_ColorMatrix](corevideo/kcvpixelbufferproresrawkey_colormatrix.md)
- [kCVPixelBufferProResRAWKey_GainFactor](corevideo/kcvpixelbufferproresrawkey_gainfactor.md)
- [kCVPixelBufferProResRAWKey_MetadataExtension](corevideo/kcvpixelbufferproresrawkey_metadataextension.md)
- [kCVPixelBufferProResRAWKey_RecommendedCrop](corevideo/kcvpixelbufferproresrawkey_recommendedcrop.md)
- [kCVPixelBufferProResRAWKey_SenselSitingOffsets](corevideo/kcvpixelbufferproresrawkey_senselsitingoffsets.md)
- [kCVPixelBufferProResRAWKey_WhiteBalanceBlueFactor](corevideo/kcvpixelbufferproresrawkey_whitebalancebluefactor.md)
- [kCVPixelBufferProResRAWKey_WhiteBalanceCCT](corevideo/kcvpixelbufferproresrawkey_whitebalancecct.md)
- [kCVPixelBufferProResRAWKey_WhiteBalanceRedFactor](corevideo/kcvpixelbufferproresrawkey_whitebalanceredfactor.md)
- [kCVPixelBufferProResRAWKey_WhiteLevel](corevideo/kcvpixelbufferproresrawkey_whitelevel.md)
- [kCVPixelBufferVersatileBayerKey_BayerPattern](corevideo/kcvpixelbufferversatilebayerkey_bayerpattern.md)
- [kCVPixelFormatContainsGrayscale](corevideo/kcvpixelformatcontainsgrayscale.md)
- [kCVPixelFormatContainsSenselArray](corevideo/kcvpixelformatcontainssenselarray.md)

## See Also

### Reference

- [Core Video Enumerations](corevideo/core-video-enumerations.md)
- [Core Video Functions](corevideo/core-video-functions.md)