MULTIPLEXING DEVICE, INTEGRATED CIRCUIT, MULTIPLEXING METHOD, MULTIPLEXING PROGRAM, COMPUTER READABLE RECORDING MEDIUM WITH RECORDED MULTIPLEXING PROGRAM AND COMPUTER READABLE RECORDING MEDIUM WITH RECORDED MULTIPLEXING STREAM

摘要

An object of the invention is to prevent breakdown of a decoder buffer, and shorten a time required for a multiplexing operation. A multiplexing pattern generator 56 generates a multiplexing pattern signal indicating the order of types of data to be multiplexed. A video remaining size calculator 33 and an audio remaining size calculator 43 calculate, as a remaining size, the size of multiplexable data of an elementary stream. A video packet generator 32 and an audio packet generator 42 generate a multiplex packet containing transmission data of a predetermined size, based on the multiplexing pattern signal and the remaining size. A multiplexer 51 generates a multiplexed stream. The video remaining size calculator 33 and the audio remaining size calculator 43 calculate the remaining size, based on the data size per access unit and the transmission size of transmission data. The video packet generator 32 and the audio packet generator 42 generate a multiplex packet, if the data type indicated by the multiplexing pattern signal shows matching, and the remaining size is equal to or larger than the transmission size.