6. A decoding method for using a context-based adaptive binary arithmetic coding (CABAC) decoding device as claimed in claim 1 , the decoding method comprising the steps of: limiting decoding of the two bin parameters in a single syntax element, so that an index of a first bin of all syntax elements is even, and an index of a second bins of the all syntax elements is odd; combining all bins in a significance map consisting of flag-type syntax elements into a new single syntax element so as to obtain next two indexes of the bins; and selecting a plurality of context models from the mixed context memory, based on the type of syntax elements and the next two indexes of the bins, and transmitting selected context models to the two-bin context adaptive binary arithmetic decoder to determine a first bin and a second bin.
1. A context-based adaptive binary arithmetic coding (CABAC) decoding device, comprising: a context memory address calculator arranged to calculate an address identifying a memory location in a context model memory for storage of a context model in a next cycle; a mixed context memory to store the context model of the context memory address calculator; a two-bin context adaptive binary arithmetic decoder arranged to output a plurality of parameters for updating a range and an offset of the context model based on the context model of the mixed context memory, and to determine a plurality of bins; and a binary syntax element comparator arranged to determine whether a current binary sequence corresponds to a value of syntax elements, based on the bins so as to select a correct memory address.