-unsigned char raw_c; /* temporary buffer where bits are coded or decoded */
-unsigned int raw_ct; /* number of bits already read or free to write */
-unsigned int raw_lenmax; /* maximum length to decode */
-unsigned int raw_len; /* length decoded */
-unsigned char *raw_bp; /* pointer to the current position in the buffer */
-unsigned char *raw_start; /* pointer to the start of the buffer */
-unsigned char *raw_end; /* pointer to the end of the buffer */