The signature for a block Photos calls to process Live Photo frames.
- iOS 10+
- macOS 10.12+
- Mac Catalyst 13.0+
- tvOS 10+
To apply edits to a Live Photo, define a block with this signature and assign it to the
frame property of a Live Photo editing context. Then call the
init to prepare a preview-quality version of your edits for display, or the
save method to produce full-quality final output. When you call one of those methods, Photos calls your frame processor block repeatedly—processing each frame of the Live Photo’s video content as well as its still photo content—to render the output.
This block takes the following parameters:
PHLiveobject describing the frame image to be processed.
If your block cannot successfully process the frame, set this pointer to an error object describing the failure.
Your block should return a
CIImage object representing the result of your edits, or
nil to indicate that your image processing has failed and the Live Photo edit should be aborted. Use the
image property to access the image to be edited.