huffman.h
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- /*
- * libmad - MPEG audio decoder library
- * Copyright (C) 2000-2003 Underbit Technologies, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * $Id: huffman.h,v 1.1 2003/08/31 18:59:46 gabest Exp $
- */
- # ifndef LIBMAD_HUFFMAN_H
- # define LIBMAD_HUFFMAN_H
- union huffquad {
- struct {
- unsigned short final : 1;
- unsigned short bits : 3;
- unsigned short offset : 12;
- } ptr;
- struct {
- unsigned short final : 1;
- unsigned short hlen : 3;
- unsigned short v : 1;
- unsigned short w : 1;
- unsigned short x : 1;
- unsigned short y : 1;
- } value;
- unsigned short final : 1;
- };
- union huffpair {
- struct {
- unsigned short final : 1;
- unsigned short bits : 3;
- unsigned short offset : 12;
- } ptr;
- struct {
- unsigned short final : 1;
- unsigned short hlen : 3;
- unsigned short x : 4;
- unsigned short y : 4;
- } value;
- unsigned short final : 1;
- };
- struct hufftable {
- union huffpair const *table;
- unsigned short linbits;
- unsigned short startbits;
- };
- extern union huffquad const *const mad_huff_quad_table[2];
- extern struct hufftable const mad_huff_pair_table[32];
- # endif