BEARBEITUNGSANLAGE, BEARBEITUNGSVERFAHREN, SPLEISSUNGSANLAGE, SPLEISSUNGSVERFAHREN, KODIERANLAGE UND KODIERVERFAHREN

摘要

Encoded streams STA and STB in re-encoding ranges set in the vicinity of a splicing point are decoded by MPEG decoders14A and 14B. When a MPEG encoder 15 performs a re-encoding process, the splice controller 13 calculates a target amount of bits so as to prevent breakdown of a VBV buffer and discontinuation of an amount of occupation of data in a VBV buffer. The splice controller 13 uses the calculated target amount of bits and a quantizer characteristic included in the streams STA and STB to set a new quantizer characteristic for pictures to be re-encoded. The MPEG encoder 15 re-encodes video data in accordance with the new quantizer characteristic supplied from the splice controller 13 so as to output video data as a re-encoded stream STRE. The splice controller 13 controls the switch 17 so as to switch the stream STA, the re-encoded stream STRE and the stream STB so as to output the switched stream. Thus, a seamless spliced stream can be produced.