Encoded stream splicing method and the coded stream splicing machinery, coded stream generation method and the coded stream generation apparatus, and information processing apparatus and method

摘要

A stream converting circuit converts the stream type of an original encoded stream transmitted as a transport from a master station into an elementary stream. The converted original encoded stream is supplied to a stream analyzing circuit of a stream splicer.The stream analyzing circuit analyzes the syntax of the original encoded stream received to extract, from the original encoded stream, data elements such as data "vbv_delay" representing the initial state of a VBV buffer, a flag "repeat_first_field" indicating whether a repeat field is to be generated or not during decoding, and a flag "top_field_first" indicating whether the first field is a top field or a bottom field, and then supplies these data elements to a splice controller, which in turn supplies these data elements to the stream processor.The stream processor, according to the data elements, rewrites data elements of a replacement encoded stream. IMAGE