包括的代码有：
bits_to_symbols.m, descendants.m, entropy_code.m, entropy_decode.m, extract.m, filename.mat, input_bit.m, irefinement.m, itrans.m, lookup_128.m, mapping_128.m, mark_proper.m, offspring.m, psnr.M, Read_Me.txt, refinement.m, sphit_main_decode.m, sphit_main_encode.m, symbols_to_bits.m, trans.m