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acoder.h
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1995-03-09
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/***********************************************************************
This file is part of HA, a general purpose file archiver.
Copyright (C) 1995 Harri Hirvola
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., 675 Mass Ave, Cambridge, MA 02139, USA.
************************************************************************
HA arithmetic coder
***********************************************************************/
void ac_init_encode(void);
void ac_end_encode(void);
void ac_init_decode(void);
void ac_out(U16B low, U16B high, U16B tot);
U16B ac_threshold_val(U16B tot);
void ac_in(U16B low, U16B high, U16B tot);