Notifies AVFoundation that you cannot fulfill the image filtering request.
- iOS 9.0+
- macOS 10.11+
- Mac Catalyst 13.0+
- tvOS 9.0+
An error object describing the reason to
Call this method if you cannot process the input image and wish to abort playback as a result—for example, if the
output object from your filter chain is nil. (If instead you want to fall back to rendering an unfiltered image, call the
finish(with: and pass the
source object to the
Calling this method causes AVFoundation to post a notification named
AVPlayer. Observers of this notification can use the
AVPlayer key to examine the error you provide.