chnhuffmandecode decodes a bitstream produced by chnhuffmanencode(1) and outputs a channel (CHN format). huffman_table is the Huffman code table that was designed and output by chnhuffmanencode(1) for the bitstream; this Huffman code table is used by chnhuffmandecode to decipher the codewords in bitstream.
chnhuffmandecode calls QccENTHuffmanDecodeChannel(3) to do the actual Huffman decoding.
D. A. Huffman, "A Method for the Construction of Minimum-Redundancy Codes," Proceedings of the IRE, vol. 40, pp. 1098-1101, September 1952.