This video output apparatus includes a plurality of input units that input a plurality of video signals and an auxiliary information related to video shot-changes that are associated with the video signals. A composing unit stores the image data associated with the plurality of input video signals in an image memory and reads out image data at a predetermined timing, and outputs a composed video signal. A control unit obtains auxiliary information for each video signal and selects one video signal from among the plurality of video signals by comparing priority orders corresponding to the auxiliary information. The control unit carries out control in which the frame frequency of the video signal that the composition unit outputs by reading out the image data from the image memory is synchronized with the frame frequency of the selected video signal.