Patent ID: 8681856
Filing Date: 2014-03-25
Classification: H04L,H04N

Abstract:
1. A scalable video providing system, comprising: a content providing server for providing SVC video and a terminal apparatus for receiving the SVC video streamed from the content providing server over a network with the terminal apparatus comprising; a video storage unit for storing an SVC bit stream of a base layer SVC video; a video control unit for determining if a full SVC video having a higher scalability than that of the base layer SVC video stored in the video storage unit is to be displayed; a video processing unit responsive to the video control unit and to the content providing server for outputting a full SVC video; and a request unit for generating a request query including at least any one of content name information, content codec information, encoding parameter information and scalability information, which correspond to the base layer SVC video, and scalability information of the full SVC video for which reproduction is required for transmittal to the content providing server; wherein said content providing server further comprises a query receiving unit and a query analysis unit for, when the request query is received, searches for required pertinent content based on the request query and generates a second SVC video representing an enhancement layer svc bit stream, corresponding to the remaining scalable video other than the base layer SVC video of the searched content, for transmittal to the video processing unit of the terminal apparatus for outputting a full SVC video from the video processing unit based upon the stored base layer SVC video and the second SVC video, with the full SVC video having a higher scalability than that of the base layer SVC video stored in the video storage unit and wherein the video processing unit reads the base layer svc video stored in the video storage unit, aligns Network Abstraction Layer (NAL) units of the second SVC video, which is streamed and provided by the content providing server, and NAL units of the read base layer svc video on the basis of a time stamp, and outputs the full SVC video.