Provides the filtered video frame image to AVFoundation for further processing or display.
SDKs
- iOS 9.0+
- macOS 10.11+
- Mac Catalyst 13.0+
- tvOS 9.0+
Framework
- AVFoundation
Declaration
Parameters
filteredImageA Core Image image representing the output of whatever filters you’ve applied to the source image.
contextA Core Image context to be used for rendering the output image, or
nilto use a default context provided by AVFoundation.
Discussion
Call this method when your handler block has finished applying filters, passing the output object from the final filter in your filter chain for the filtered parameter. The pixel format for this image must be the BGRA8 format (of the k type).
You can pass the source object to the filtered parameter to disable filtering for the current frame.
By default, you can pass nil for the context parameter to use a default rendering context provided by Core Image. In iOS and tvOS, the default context uses the Device RGB color space. In macOS, the default context uses the sRGB color space. AVFoundation automatically uses a GPU-accelerated context if possible. To use a different color space or control other rendering options, pass your own CIContext object instead.