MTF变换，一种字节数据流编码方式，用来改善加密压缩性能-The move-to-front transform (or MTF) is an encoding of data (typically a stream of bytes) designed to improve the performance of entropy encoding techniques of compression. When efficiently implemented, it is fast enough

Expanded entropy encoder object for progressive Huffman encoding.

Expanded entropy encoder object for arithmetic encoding for Linux.

Expanded entropy encoder object for progressive Huffman encoding.