Patent ID: 8743228

Claim:
A video synthesizing apparatus which synthesizes a first video and a second video, wherein a displayable period of the second video is designated within a playback time of the first video, and a playback of only the second video is started at an arbitrary point of time within the displayable period; is ended when the second video is completed or a playback time of the second video is past the displayable period; and is switchable between display and non-display at an arbitrary point of time during playing, comprising: a designating means configured to: receive metadata designated in a range of all time within the displayable period, said data including: time information representing a plurality of time positions in the first video within the displayable period, wherein the plurality of time positions define each time at which a video frame of the first video is displayed, respectively, during the displayable period; and displayed area information representing a plurality of displayed positions where the second video is displayed over top of the first video at the time, wherein each of the plurality of displayed positions is a position over the first video that the second video is displayed at each of the plurality of time positions in the first video, respectively, and designate a displayed position where the second video is displayed at an arbitrary point of time, based on the metadata, wherein the metadata manages the time at which the displayed area of the second video is changed to a different position in the first video; and a synthesizing means configured to synthesize the second video over top of the designated displayed position within the first video, designated by the designating means.