| 摘要 |
A method for managing and processing information about an object for presentation of multi-source is provided to enhance user satisfaction of viewing and listening to contents by allowing media components to normally and reliably performing reproducing cooperatively. A CP(Control Point) requests receivable protocol information from a media renderer(S30). Information about each item is transferred from a CDS(Content Directory Service) to a CP(S31). The CP provides only objects(items) having protocol information that can be received by the media renderer to a user via a suitable UI(User Interface)(S32-1). The user selects an item to be presented to the media renderer from the list of the provided objects(S32-2). If meta data of the selected item includes supplementary expression information, the supplementary expression information is interpreted and a corresponding additional selection operation is performed(S32-3). An action for preparation for connection is requested from the media server and the media renderer for a main component and an auxiliary component that have acquired protocol information and URL(Universal Resource Locator) information, and then, instant IDs with respect to participating elements required for presentation by streaming between devices are received(S33-1,S33-2). The CP individually sets access position information, namely, URL information, about each components at an AVTransport service(S34), and requests a single reproduction action with respect to the components from the AVTransport service by using an argument of a defined instantID(S35). The AVTransport service checks a list of instant IDs of the input argument and allows the components with respect to a particular connection specified by all the instant IDs belonging to list to be streamed or downloaded, and the streamed or downloaded components are synchronized by a rendering module, decoded and outputted(S36).
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