Method and apparatus for encoding and decoding of scalable codec

The present invention is the maximum bit for encoding an input signal according to the state of the network in a scalable codec for encoding, the layer structure relates to a method and apparatus for encoding / decoding using the bit stream (bitstream) composed of layer (layer) structure adjusting the transmission rate by encoding, and is decoded by analyzing the information of the maximum bit rate included in the bit-stream decoding in a hierarchical structure.