| 摘要 |
A media server receives, stores and forwards multi-media data and full motion video feature presentations within a PSTN. The media server receives wide band digital video and MPEG encoded video signals. The wide band digital video is encoded using either a real time MPEG encoding for immediate transmission over network facilities to subscribers or using a multi-pass MPEG encoder for storage by the Media Server for subsequent transmission. The Media Server includes DRAM, optical and magnetic disk storage, high speed tape storage and archival storage. A Librarian Processor allocates storage space on a media appropriate to retrieval requirements for the video data. The Librarian is responsive to a storage Manager Processor and a Session Manager Processor for providing video program data to an Output Controller.
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