| 摘要 |
PROBLEM TO BE SOLVED: To provide a VLC coder which can be used commonly by MPEG2 and MPEG4. SOLUTION: The VLC coder includes a table storage 34 for storing conversion tables in which a correspondence relation between a syntax and a VLC code string is described. A selection instruction for selecting any one of the conversion tables in the table storage 34 is provided from an external CPU to the VLC coder. A VLC coder/decoder selects any one conversion table according to the selection instruction received from the CPU, and performs VLC encoding or decoding operation on the basis of the selected conversion table. Consequently, when all the conversion tables associated with MPEG2 and MPEG4 are previously stored in the table storage 34, VLC coding corresponding to a stream of MPEG2 and MPEG4 can be realized by programming. COPYRIGHT: (C)2004,JPO |
