huffman.h

mp3文件格式与wav文件格式的音频文件转换工具

#include "bitstream.h"

#define HUFFBITS unsigned long int
#define HTN	34
#define MXOFF	250
 
struct huffcodetab {
  unsigned int xlen; 	/*max. x-index+			      	*/ 
  unsigned int ylen;	/*max. y-index+				*/
  unsigned int linbits; /*number of linbits			*/
  unsigned int linmax;	/*max number to be stored in linbits	*/
  HUFFBITS *table;	/*pointer to array[xlen][ylen]		*/
  unsigned char *hlen;	/*pointer to array[xlen][ylen]		*/
};

extern struct huffcodetab ht[HTN];/* global memory block		*/
				/* array of all huffcodtable headers	*/
				/* 0..31 Huffman code table 0..31	*/
				/* 32,33 count1-tables			*/

extern void huffman_coder(unsigned int, unsigned int,
                          struct huffcodetab*, bitstream_t*);