| 摘要 |
A Method for pre-processing digital data and in particular of pre-processing digital video and/or digital audio data is provided, wherein a step of encoding (S 3 ) a primary data stream (D 1 ), a step of encrypting (S 4 ) an encoded primary data stream (ED 1 ) and a process of generating (P 3 ) a preview data stream (PD) are built in and/or embedded within a common process (P 2 ) of encoding said primary data stream (D 1 ) in particular by integrating these processes and/or steps within a single and common encoder. The present invention additionally relates to a conversion system ( 10, 20 ) having a conversion functionality ( 11, 21 ) and a logic functionality ( 12, 22 ). Key aspect of the present invention is that said conversion functionality ( 11, 21 ) and said logic functionality ( 12, 22 ) are embedded in one single and common unit.
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