f the number of PINAnimatedImages created with
the same NSData.</p>

<p>PINAnimatedImage&rsquo;s are also decoded chunks at a time, writing each chunk to a separate file. This allows callback
and playback to start before the GIF is completely decoded. If a frame is requested beyond what has been processed,
nil will be returned. Because a fileReady is called on each chunk completion, you can pause playback if you hit a nil
frame until you receive another fileReady call.</p>

<p>Internally, PINAnimatedImage a