Pixel Buffer Attribute Keys

Overview

Use the pixel buffer attribute keys to tell Core Video how to allocate pixel buffers for compatibility with client requirements. A pixel buffer attributes dictionary is a Core Foundation dictionary that contains zero or more key-value pairs. You can pass this dictionary to functions such as CVPixelBufferCreate(_:_:_:_:_:_:) and CVPixelBufferPoolCreate(_:_:_:_:).

To create an attributes dictionary that’s compatible for multiple clients, pass an array of each client’s attributes dictionary to CVPixelBufferCreateResolvedAttributesDictionary(_:_:_:).

Topics

Constants

• kCVPixelBufferMemoryAllocatorKey
• kCVPixelBufferPixelFormatTypeKey
• kCVPixelBufferWidthKey
• kCVPixelBufferHeightKey
• kCVPixelBufferExtendedPixelsLeftKey
• kCVPixelBufferExtendedPixelsTopKey
• kCVPixelBufferExtendedPixelsRightKey
• kCVPixelBufferExtendedPixelsBottomKey
• kCVPixelBufferBytesPerRowAlignmentKey
• kCVPixelBufferCGBitmapContextCompatibilityKey
• kCVPixelBufferCGImageCompatibilityKey
• kCVPixelBufferOpenGLCompatibilityKey
• kCVPixelBufferPlaneAlignmentKey
• kCVPixelBufferIOSurfacePropertiesKey
• kCVPixelBufferOpenGLESCompatibilityKey
• kCVPixelBufferMetalCompatibilityKey
• kCVPixelBufferIOSurfaceCoreAnimationCompatibilityKey
• kCVPixelBufferIOSurfaceOpenGLFBOCompatibilityKey
• kCVPixelBufferIOSurfaceOpenGLESFBOCompatibilityKey
• kCVPixelBufferIOSurfaceOpenGLTextureCompatibilityKey
• kCVPixelBufferIOSurfaceOpenGLESTextureCompatibilityKey
• kCVPixelBufferOpenGLTextureCacheCompatibilityKey
• kCVPixelBufferOpenGLESTextureCacheCompatibilityKey