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67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
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/*
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* libmad - MPEG audio decoder library
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* Copyright (C) 2000-2004 Underbit Technologies, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Id: huffman.h,v 1.11 2004/01/23 09:41:32 rob Exp $
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*/
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# ifndef LIBMAD_HUFFMAN_H
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# define LIBMAD_HUFFMAN_H
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union huffquad {
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struct {
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unsigned int final : 1;
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unsigned int bits : 3;
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unsigned int offset : 12;
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} ptr;
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struct {
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unsigned int final : 1;
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unsigned int hlen : 3;
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unsigned int v : 1;
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unsigned int w : 1;
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unsigned int x : 1;
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unsigned int y : 1;
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} value;
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unsigned int final : 1;
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};
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union huffpair {
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struct {
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unsigned int final : 1;
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unsigned int bits : 3;
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unsigned int offset : 12;
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} ptr;
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struct {
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unsigned int final : 1;
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unsigned int hlen : 3;
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unsigned int x : 4;
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unsigned int y : 4;
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} value;
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unsigned int final : 1;
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};
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struct hufftable {
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union huffpair const *table;
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unsigned int linbits;
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unsigned int startbits;
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};
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extern union huffquad const *const mad_huff_quad_table[2];
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extern struct hufftable const mad_huff_pair_table[32];
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# endif
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