Generating device, generating method, and program for reproducing subtitles from a file in which subtitle data relating to subtitles is stored

摘要

A generating device includes: a subtitle encode unit for generating subtitle data by encoding the image data of a subtitle; and a determining unit for determining whether or not reproduction of the subtitle is in time for display thereof based on the size of encoded data obtained by encoding the image data, with the subtitle data being classified into display sets as display units, and with the determining unit obtaining processing time regarding the display set of interest from the size of encoded data of the display set of interest according size-time relationship between the size of the encoded data and the processing time, and determining that reproduction of the subtitle of the display set of interest is not in time for display thereof when the available time regarding the display set of interest is below the processing time regarding the display set of interest, to output error information.