| 摘要 |
PURPOSE: A method for generating and processing a hierarchical PES packet for a digital satellite broadcast based on an SVC video is provided to divide NAL(Network Abstraction Layer) units of a basic layer and an enhancement layer to perform PES packetization, thereby performing a differentiated packet protection function. CONSTITUTION: A plurality of basic layer NAL units included in one GOP(Group of Picture) is grouped to generate basic layer PES packets. Enhancement layer NAL units related to the basic layer NAL units are grouped to generate a plurality of enhancement layer PES packets. Index numbers are assigned to the basic layer NAL units according to an extracted order. Index numbers the same as the related basic layer NAL units are assigned to the enhancement layer PES packets. |
