VIDEO STREAM TRANSMITTING DEVICE, VIDEO STREAM RECEIVING DEVICE, VIDEO STREAM TRANSMITTING METHOD, AND VIDEO STREAM RECEIVING METHOD

摘要

The present invention provides a video stream transmitting device, a video stream receiving device, a video stream transmitting method, and a video stream receiving method. According to the embodiment of the present invention, provided is a video stream transmitting method which comprises the steps of: sampling an UD video stream to divide the sampled UD video stream into at least one viewable HD video sub-stream, and encoding each at least one of the divided HD video sub-stream; performing a multiplexing process which includes at least one HD video sub-stream and signaling information which indicates a relation between the UD video stream and at least one HD video sub-stream; and at least transmitting the multiplexed one HD video sub-stream and the signaling information.