The present invention quickly performs processing related to group formation. An information processing device is provided with a wireless communication unit and a control unit. The wireless communication unit uses wireless communication in a first group to which one or more information processing devices including the abovementioned information processing device belong in order to exchange a stream for outputting image information from a first information processing device belonging to the first group. When a second group that is a new group other than the first group is formed, the control unit performs control for exchanging capability information related to one or more information processing devices with a second information processing device that belongs to the second group.