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/*

 * mad - MPEG audio decoder

 * Copyright (C) 2000-2001 Robert Leslie

 *

 * 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 1.3 2001-11-06 17:01:28 simons Exp $

 */

# ifndef LIBMAD_HUFFMAN_H

# define LIBMAD_HUFFMAN_H

union huffquad {

  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;

  struct {

    unsigned short final  :  1;

    unsigned short bits   :  3;

    unsigned short offset : 12;

  } ptr;

  unsigned short final    :  1;

};

union huffpair {

  struct {

    unsigned short final  :  1;

    unsigned short hlen   :  3;

    unsigned short x      :  4;

    unsigned short y      :  4;

  } value;

  struct {

    unsigned short final  :  1;

    unsigned short bits   :  3;

    unsigned short offset : 12;

  } ptr;

  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