ENCODING METHOD, APPARATUS AND DEVICE, AND DECODING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method capable of improving compression efficiency for various input signals without requiring complicated processing, by introducing a comprehensive encoding/decoding method for various input signals. SOLUTION: The encoding method includes: selecting a second encoding mode for encoding an input frame signal according to an analysis on signal characteristic of the input frame signal; obtaining coding demand values for a preset first encoding mode and the second encoding mode which are used to encode the input frame signal; determining, from the above encoding modes on the basis of the coding demand values, an encoding mode for encoding the input frame signal; and multiplexing information of the determined encoding mode and encoded data which are encoded according to the determined encoding mode. Therefore, the compatibility and the prioritization in terms of the encoding modes can be achieved. COPYRIGHT: (C)2011,JPO&INPIT