VIDEO PLAYBACK DEVICE AND VIDEO DISTRIBUTION DEVICE

摘要

PROBLEM TO BE SOLVED: To enable video viewing without a defective video image to be played back if a screen position and/or a screen size displayed during viewing changes.SOLUTION: A video playback device receives from a video distribution device and plays back coded video data in a video playback area which is a designated partial region out of the overall video data. The video playback device includes: distribution request means for requesting the video distribution device to distribute first video data in a video playback region, having a resolution necessary for displaying a video image on a designated screen, and second video data in a video playback region of a minimum resolution when displayed on the video playback device, including the overall video data; reception means for receiving coded video data, obtained by coding the first video data and the second video data and distributed from the video distribution device as coded video data; and display means for decoding the received coded video image data and for superposing the first video data with the second video data to display on a designated screen.