| 摘要 |
PROBLEM TO BE SOLVED: To provide a scalable encoding method, a scalable encoder and a multimedia terminal, provided with the scalable encoder for multimedia data streams for substantially reducing the risk of multiplexer buffer overflow and adjusting encoded scalable data streams, so as to be suited to various dynamically changing conditions with high versatility. SOLUTION: This scalable encoder (100) is provided with a first encoding means (210) for producing a first data stream (102) which is the core data stream of media signals (101), having a first bit rate, and a second encoding means (230) for producing a second data stream (103) which comprises a set of the enhancement data streams of the media signals, having a second bit rate and a multiplexer (110) for combining at least the first and second data streams into a third data stream (104). The scalable encoder is provided with control means (420, 421 and 422) for deciding the target combination of the first and second data streams, in the third data stream from control information and receiving the control information (401). The multimedia terminal provided with the scalable encoder and the data encoding method are also presented. |
