METHOD OF ASSIGNING PRIORITY FOR CONTROLLING BIT RATE OF BITSTREAM, METHOD OF CONTROLLING BIT RATE OF BITSTREAM, VIDEO DECODING METHOD, AND APPARATUS USING THE SAME

摘要

A method of assigning a priority for controlling a bit rate of a bitstream having a plurality of quality layers is provided. The method includes composing first quality layers for a reference picture, composing second quality layers for a current picture that is encoded with reference to the reference picture, and assigning a priority each of the first and second quality layers, wherein a low priority is assigned to a quality layer having a small influence on a video quality reduction of the current picture when the quality layer is truncated.