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pvvx 2016-11-09 03:56:41 +03:00
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project/inc/mad/huffman.h Normal file
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/*
* libmad - MPEG audio decoder library
* Copyright (C) 2000-2004 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 1.11 2004/01/23 09:41:32 rob Exp $
*/
# ifndef LIBMAD_HUFFMAN_H
# define LIBMAD_HUFFMAN_H
union huffquad {
struct {
unsigned int final : 1;
unsigned int bits : 3;
unsigned int offset : 12;
} ptr;
struct {
unsigned int final : 1;
unsigned int hlen : 3;
unsigned int v : 1;
unsigned int w : 1;
unsigned int x : 1;
unsigned int y : 1;
} value;
unsigned int final : 1;
};
union huffpair {
struct {
unsigned int final : 1;
unsigned int bits : 3;
unsigned int offset : 12;
} ptr;
struct {
unsigned int final : 1;
unsigned int hlen : 3;
unsigned int x : 4;
unsigned int y : 4;
} value;
unsigned int final : 1;
};
struct hufftable {
union huffpair const *table;
unsigned int linbits;
unsigned int startbits;
};
extern union huffquad const *const mad_huff_quad_table[2];
extern struct hufftable const mad_huff_pair_table[32];
# endif