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APPARATUS FOR TRANSMITTING VIDEO STREAM, APPARATUS FOR RECEIVING VIDEO STREAM, METHOD FOR TRANSMITTING VIDEO STREAM, AND METHOD FOR RECEIVING VIDEO STREAM
APPARATUS FOR TRANSMITTING VIDEO STREAM, APPARATUS FOR RECEIVING VIDEO STREAM, METHOD FOR TRANSMITTING VIDEO STREAM, AND METHOD FOR RECEIVING VIDEO STREAM
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机译:用于传输视频流的设备,用于接收视频流的设备,用于传输视频流的方法以及用于接收视频流的方法
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摘要
The present invention provides an apparatus for transmitting a video stream, an apparatus for receiving a video stream, a method for transmitting a video stream, and a method for receiving a video stream. One embodiment of the present invention, discloses the method for transmitting the video stream, comprising the steps of: down-sampling a UHD (ultra high definition) video stream to divide the UHD video stream into a sub-stream of a viewable HD compatible video, a sub-stream of an HD-sized video, and a sub-stream of a residual signal as a difference between the HD compatible video and the HD-sized video, and encoding the divided sub-streams; multiplexing signaling information for describing the relationship between the UHD video stream and at least one sub-stream and including the sub-stream; and transmitting the multiplexed HD sub-stream and the signaling information.
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