image-multi-frame-p

image-multi-frame-p is a compiled Lisp function in `image.el'.

(image-multi-frame-p IMAGE)

Return non-nil if IMAGE contains more than one frame.
The actual return value is a cons (NIMAGES . DELAY), where NIMAGES is
the number of frames (or sub-images) in the image and DELAY is the delay
in seconds that the image specifies between each frame. DELAY may be nil,
in which case you might want to use `image-default-frame-delay'.