DEVICE AND METHOD FOR GENERATING STREAM, DEVICE AND METHOD FOR TRANSMITTING STREAM, DEVICE AND METHOD FOR ENCODING AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To transmit history information with a transmission path with small capacity by generating a 2nd encoded stream by encoding an encoded stream and describing combination information representing the combination of an encoding history in encoding processing. SOLUTION: A history information multiplexer 103 multiplexes the current encoding parameter supplied from a decoding device 102 and past encoding parameter outputted by a history coding device 104 into video data of a base band supplied from the device 102 according to a format and outputs them to an history information demultiplexer 105. The demultiplexer 105 extracts the encoding parameters from the video data of a base band supplied from the multiplexer 103, selects an encoding parameter being most suitable to encoding this time among them, and outputs it together with a descriptor to a combined descriptor demultiplexing part 511.