VIDEO DATA MULTIPLEXER, VIDEO DATA MULTIPLEXING CONTROL METHOD, METHOD AND APPARATUS FOR MULTIPLEXING ENCODED STREAM, AND ENCODING METHOD AND APPARATUS

摘要

Data for control by statistical multiplexing is efficiently transferred. Each of encoders transfers data for statistical multiplexing representing the degree of difficulty of encoding to a multiplexer (4) by using a private packet through a transmission line through which encoded video and audio data is also transferred. The multiplexer (4) multiplexes the data from the encoder at a first rate (R1) higher than the transmission rate of the transmission line at the succeeding stage and outputs a transport stream (TSd) including a private packet to a statistical multiplexing computer. The multiplexer (4) also multiplexes data from which the private packet is eliminated at a second rate (R2) equal to the transmission rate of the transmission line at the succeeding stage and outputs a transport stream (TSm) including no private packet to the transmission line at the succeeding stage.