decode method
Decode the file and extract a single image from it. If the file is
animated, the specified frame
will be decoded. If there was a problem
decoding the file, null is returned.
Implementation
@override
Image? decode(Uint8List data, {int? frame}) {
if (startDecode(data) == null) {
return null;
}
return decodeFrame(frame ?? 0);
}