DEMULTIPLEXING DEVICE

摘要

The demultiplexing apparatus 200 comprises a data obtainment unit 210 operable to obtain the MP4 file data 100, a decoding unit 213 operable to demultiplex the MP4 file data 100 obtained by the data obtainment unit 210 into pairs of a moov 110 and a mdat 110 and pairs of a moof 130 and a mdat 140, and decode those pairs pair by pair, a content duration specification unit 211a operable to specify the content total duration based on the content total duration information contained in the moov 110 of the MP4 file data 100 obtained by the data obtainment unit 210 and a playback unit 214 operable to display content total duration specified by the content duration specification unit 211a.