To provide an information processing system which enables an object to be shared between devices for a wide range by reproducing the object beyond a category.

In decoding sides 130 and 140, notice means 131 and 141 obtain the states of self-devices (decoding functions that the self-devices have) and inform an encoding-side 110 of the state information. In the encoding-side 110, encoding means 114, 117 and 119 encode information by an encoding system to which a decoding device being the output destination of encoding information can correspond with state information from the decoding-sides 130 and 140.