5. the method according to claim 1 , wherein the data structure describing a playing layout of MMS is a slide sequence structure.
1. A Multimedia Messaging Service (MMS) decoding method, comprising the following steps of: A: parsing an original MMS data packet, acquiring all the non-Synchronized Multimedia Integration Language (SMIL) files in the original MMS data packet, and counting the number of all the non-SMIL files as a first non-SMII, file number; B: determining whether an SMIL file exists in the parsing result, when there exists an SMIL file, pre-parsing the SMIL file, obtaining the number of non-SMIL files described by the SMIL file, counting the number as a second non-SMIL file number, and executing step C; C: determining whether the first non-SMIL file number is equal to the second non-SMIL file number, when they are equal, taking the SMIL file in the parsing result as a formal SMIL file to be parsed, and executing step E; E: integrally parsing the formal SMIL file to be parsed, obtaining a data structure describing a playing layout of MMS, taking the obtained data structure and all the non-SMIL files obtained in step A as an MMS decoding result.