An encoding apparatus includes a first encoder for encoding inputted
picture information at a first rate or first resolution, and a second
encoder for encoding the inputted picture information at a second rate
lower than the first rate or at second resolution lower than the first
resolution, in which when the second encoder encodes picture information,
the second encoder encodes the picture information by use of encoding
information of picture information in the first encoder corresponding to
the picture information, and the encoding apparatus outputs the picture
information encoded by the first encoder and the second encoder,
respectively, thereby the second encoder executing the encoding by using
encoding information of the first encoder.