APPARATUS AND METHOD FOR MULTIPLEXING AND DEMULTIPLEXING BASED ON DIGITAL MULTIMEDIA BROADCASTING

摘要

PURPOSE: An apparatus and a method for multiplexing and de-multiplexing based on digital multimedia broadcasting are provided to supply AV(Audio/Video) contents of high quality by a DMB receiver which is capable of receiving scalable service maintaining compatibility with a general DMB receiver which does not receive a scalable service. CONSTITUTION: A base layer OD / BIFS(Object Descriptor/Binary Format for Scene) generator(320) generates an OD/BIFS stream of a base layer video. An enhancement layer OD / BIFS generator(330) generates an OD / BIFS stream of enhanced layer video. Packetizers(340,370) packetize elementary stream of the base layer, object information of the base layer, elementary stream of the enhancement layer and object information of the enhancement layer. Section generators(350,360) generate an SCST(Scalable Contents Service Table) section and a PSI section. Multiplexers(380,390) generate a base layer transport stream and an enhanced layer transport stream.