Mpeg encoding apparatus, mpeg decoding apparatus, and encoding program

摘要

Provided is an MPEG encoding apparatus that prevents an influence of a portion of discontinuity that occurs in a partial TS when an analog stream is switched, from being exerted on video/audio reproduction at a decoding side. A CPU (21) holds a program number of a PAT for an analog stream before switching. When the analog stream is switched, the CPU (21) reports to a PAT generating section (15) a value of the program number that is different from the one held therein. The PAT generating section (15) generates the PAT containing the reported program number. Thereafter, an input stream switching section (11) switches the input stream according to an instruction from the CPU (21). Thus, an encoding side changes the program number of the PAT every time the stream is changed. With this, the decoding side can carry out muting and stop decoding based on the program number, thereby preventing the influence of the portion of discontinuity that occurs in the partial TS.