VIDEO GENERATING DEVICE, VIDEO OUTPUT DEVICE, VIDEO OUTPUT SYSTEM, VIDEO GENERATING METHOD, VIDEO OUTPUT METHOD, VIDEO OUTPUT SYSTEM CONTROL METHOD, AND RECORDING MEDIUM

摘要

Provided is a video generating device or the like capable of controlling a light source used to output an output image, said control being synchronized with the output image, without the addition of a control interface. A video generating device 200B according to one mode of embodiment of the present invention is provided with: a converting unit 213 which converts a control signal, which is generated on the basis of an output image and which controls a light source used to output the output image, into a control image, which is an image representing said control signal; a synthesizing unit 214 which synthesizes a synthesized image in which the control image is incorporated into a second region of an image including a first region, which is an image region including the output image, where said second region is different from said first region; a video signal generating unit 201 which converts the synthesized image into a video signal; and a transmitting unit 202 which transmits the video signal to a video output device 100 provided with: a control signal extracting unit 103 which, in response to receiving the video signal, extracts, as the control image, the second region of the synthesized image represented by the received video signal, and converts the extracted control image into a control signal; and an output unit 110 which outputs, as the output image, the first region of the image represented by the received video signal, while controlling the light source in accordance with the converted control signal.