/*?libezbc?-?EZBC?subband?coding/decoding
??????Copyright?（C）?2004?Vivien?Chappelier

??????This?library?is?inspired?from?code?originaly?developped?by?Yongjun?Wu?Jan?in?MC-EZBC.?This?rewritten?version?may?still?contain?code?similar?to?his?original?implementation.

??????Reference?paper:?“embedded?Image?Coding?Using?Zeroblocks?Of?Subband/Wavelet?Coefficient?And?Context?Modeling“?Shih-Ta?Hsiang?and?John?W.?Woods?Data?Compression?Conference?（DCC?‘01）?March?27?-?29?2001?Snowbird?Utah?
*/

/*?Binary?Arithmetic?Coder/Decoder?
??????Copyright?（C）?2004?Vivien?Chappelier

??????Originally?inspired?from?the?MPEG-4?VM?binary?arithmetic?coder.
*/
#include?“stdafx.h“
#include?
#include?
#include?
#include?“arithmetic_codec.h“

static?void?renormalize_encoder（arithmetic_codec_t?*arithmetic_codec）;
static?void?renormalize_decoder（arithmetic_codec_t?*arithmetic_codec）;

arithmetic_codec_t?*arithmetic_codec_new（unsigned?char?*buffer
					?int?length）;
void?arithmetic_decoder_delete（arithmetic_codec_t?*arithmetic_codec）;
void?arithmetic_codec_start（arithmetic_codec_t?*arithmetic_codec）;
void?arithmetic_decoder_stop（arithmetic_codec_t?*arithmetic_codec）;
int?arithmetic_encoder_stop（arithmetic_codec_t?*arithmetic_codec）;
int?arithmetic_codec_decode（arithmetic_codec_t?*arithmetic_codec
			????float?prob_zero）;
void?arithmetic_codec_encode（arithmetic_codec_t?*arithmetic_codec
			?????float?prob_zero
			?????arithmetic_codec_bit_t?bit）;

int?ffs（int?n）
{
??int?i;
??for（i?=?0;?n;?n?>>=?1?i++）;
??return（i?-?1）;
}

static?void?follow（arithmetic_codec_t?*arithmetic_codec?unsigned?char?bit）
{
??if?（!arithmetic_codec->first_bit）
????bitbuffer_write_bit（arithmetic_codec->bitbuffer?bit）;
??else
????arithmetic_codec->first_bit?=?0;

??while（arithmetic_codec->bits_to_follow?>?0）?{
????bitbuffer_write_bit（arithmetic_codec->bitbuffer?!bit）;
????arithmetic_codec->bits_to_follow--;
??}
}

static?void?renormalize_encoder（arithmetic_codec_t?*arithmetic_codec）
{
??while?（arithmetic_codec->range?????if?（arithmetic_codec->lower?>=?ARITHMETIC_CODEC_HALF）?{?
??????follow（arithmetic_codec?1）;
??????arithmetic_codec->lower?-=?ARITHMETIC_CODEC_HALF;
????}?else?{
??????if?（arithmetic_codec->lower?+?arithmetic_codec->range?<=
	??ARITHMETIC_CODEC_HALF）
	follow（arithmetic_codec?0）;
??????else?{
	arithmetic_codec->bits_to_follow++;
	arithmetic_codec->lower?-=?ARITHMETIC_CODEC_QUARTER;
??????}
????}
????arithmetic_codec->lower?+=?arithmetic_codec->lower;
????arithmetic_codec->range?+=?arithmetic_codec->range;
??}
}

static?void?renormalize_decoder（arithmetic_codec_t?*arithmetic_codec）
{
??while?（arithmetic_codec->range?????if?（arithmetic_codec->lower?>=?ARITHMETIC_CODEC_HALF）?{
??????arithmetic_codec->value?-=?ARITHMETIC_CODEC_HALF;
??????arithmetic_codec->lower?-=?ARITHMETIC_CODEC_HALF;
??????arithmetic_codec->bits_to_follow?=?0;
????}?else
??????if?（arithmetic_codec->lower?+?arithmetic_codec->

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????262159??2012-02-24?20:07??myContourLet\input&output\1.pgm

?????文件?????263204??2014-04-10?20:54??myContourLet\input&output\dfb0.pgm

?????文件??????65571??2014-04-10?20:54??myContourLet\input&output\dwt.pgm

?????文件??????65571??2014-04-10?20:54??myContourLet\input&output\rband0_0.pgm

?????文件??????65571??2014-04-10?20:54??myContourLet\input&output\rband0_1.pgm

?????文件??????65571??2014-04-10?20:54??myContourLet\input&output\rband0_2.pgm

?????文件??????65571??2014-04-10?20:54??myContourLet\input&output\rband0_3.pgm

?????文件?????262179??2014-04-10?20:54??myContourLet\input&output\rec.pgm

?????文件??????84561??2014-04-10?20:54??myContourLet\input&output\rec0.jpg

?????文件?????263204??2014-04-10?20:54??myContourLet\input&output\rec_dfb0.pgm

?????文件??????65571??2014-04-10?20:54??myContourLet\input&output\rec_dwt.pgm

?????文件???????1057??2014-04-10?20:54??myContourLet\input&output\rec_low.pgm

?????文件?????262179??2014-04-10?20:54??myContourLet\input&output\rhigh0.pgm

?????文件??????65571??2014-04-10?20:54??myContourLet\input&output\rlow0.pgm

?????文件???????6879??2015-04-22?10:53??myContourLet\myContourLet\arithmetic_codec.cpp

?????文件???????2272??2005-08-09?19:35??myContourLet\myContourLet\arithmetic_codec.h

?????文件???????1850??2015-04-22?10:53??myContourLet\myContourLet\bitbuffer.cpp

?????文件???????1594??2005-08-09?19:35??myContourLet\myContourLet\bitbuffer.h

?????文件???????6713??2015-04-22?14:52??myContourLet\myContourLet\contourlet.cpp

?????文件???????1771??2012-02-24?19:09??myContourLet\myContourLet\contourlet.h

?????文件??????24938??2015-04-22?10:53??myContourLet\myContourLet\dfb.cpp

?????文件???????2534??2012-02-24?19:15??myContourLet\myContourLet\dfb.h

?????文件??????14091??2015-04-22?10:53??myContourLet\myContourLet\ezbc.cpp

?????文件???????1115??2012-02-24?19:15??myContourLet\myContourLet\ezbc.h

?????文件??????18210??2015-04-22?10:53??myContourLet\myContourLet\ezbc_codec.cpp

?????文件???????5361??2010-03-11?08:54??myContourLet\myContourLet\ezbc_codec.h

?????文件??????21281??2015-04-22?10:52??myContourLet\myContourLet\ezbc_decoder.cpp

?????文件????????877??2005-08-09?19:34??myContourLet\myContourLet\ezbc_decoder.h

?????文件??????23614??2015-04-22?10:51??myContourLet\myContourLet\ezbc_encoder.cpp

?????文件????????715??2005-08-09?19:35??myContourLet\myContourLet\ezbc_encoder.h

............此處省略101個文件信息