/**********************************************************************
?*?Software?Copyright?Licensing?Disclaimer
?*
?*?This?software?module?was?originally?developed?by?contributors?to?the
?*?course?of?the?development?of?ISO/IEC?14496-10?for?reference?purposes
?*?and?its?performance?may?not?have?been?optimized.??This?software
?*?module?is?an?implementation?of?one?or?more?tools?as?specified?by
?*?ISO/IEC?14496-10.??ISO/IEC?gives?users?free?license?to?this?software
?*?module?or?modifications?thereof.?Those?intending?to?use?this?software
?*?module?in?products?are?advised?that?its?use?may?infringe?existing
?*?patents.??ISO/IEC?have?no?liability?for?use?of?this?software?module
?*?or?modifications?thereof.??The?original?contributors?retain?full
?*?rights?to?modify?and?use?the?code?for?their?own?purposes?and?to
?*?assign?or?donate?the?code?to?third-parties.
?*
?*?This?copyright?notice?must?be?included?in?all?copies?or?derivative
?*?works.??Copyright?（c）?ISO/IEC?2004.
?**********************************************************************/

/*!
?*************************************************************************************
?*?\file?annexb.c
?*
?*?\brief
?*????Annex?B?Byte?Stream?format//附錄B的字節(jié)流格式d610829
?*
?*?\author
?*????Main?contributors?（see?contributors.h?for?copyright?address?and?affiliation?details）
?*??????-?Stephan?Wenger??????????????????
?*************************************************************************************
?*/

#include?
#include?

#include?“global.h“
#include?“annexb.h“
#include?“memalloc.h“


FILE?*bits?=?NULL;????????????????//!static?int?FindStartCode?（unsigned?char?*Buf?int?zeros_in_startcode）;

int?IsFirstByteStreamNALU=1;
int?LastAccessUnitExists=0;
int?NALUCount=0;


/*!
?************************************************************************
?*?\brief
?*????Returns?the?size?of?the?NALU?（bits?between?start?codes?in?case?of
?*????Annex?B.??nalu->buf?and?nalu->len?are?filled.??Other?field?in
?*????nalu->?remain?uninitialized?（will?be?taken?care?of?by?NALUtoRBSP.
?*
?*?\return
?*?????0?if?there?is?nothing?any?more?to?read?（EOF）
?*????-1?in?case?of?any?error
?*
?*??\note?Side-effect:?Returns?length?of?start-code?in?bytes.?
?*
?*?\note
?*???GetAnnexbNALU?expects?start?codes?at?byte?aligned?positions?in?the?file
?*
?************************************************************************
?*/

int?GetAnnexbNALU?（NALU_t?*nalu）
{
??int?info2?info3?pos?=?0;
??int?StartCodeFound?rewind;
??char?*Buf;
??int?LeadingZero8BitsCount=0?TrailingZero8Bits=0;
????
??if?（（Buf?=?（char*）calloc?（nalu->max_size??sizeof（char）））?==?NULL）?no_mem_exit（“GetAnnexbNALU:?Buf“）;//分配緩沖區(qū)內存

??while（!feof（bits）?&&?（Buf[pos++]=fgetc（bits））==0）;//fgetc讀取文件中一個字符，然后位置不斷后移；feof檢測文件結束符；讀取單位為字節(jié)
????????????????????????????????????????????????????//表示不斷從文件中讀取字符到緩沖區(qū)中，直到讀到文件結束符
??
??if（feof（bits））//如果遇到文件結束符

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

?????文件????????753??2004-09-16?22:38??JM86_firstime\bin\backup\decoder.cfg

?????文件??????11222??2004-09-02?12:46??JM86_firstime\bin\backup\encoder_baseline.cfg

?????文件??????11221??2004-09-02?12:46??JM86_firstime\bin\backup\encoder_extended.cfg

?????文件??????11221??2004-09-16?22:38??JM86_firstime\bin\backup\encoder_main.cfg

?????文件?????114048??2001-09-03?13:05??JM86_firstime\bin\backup\foreman_part_qcif.yuv

?????文件?????????16??2001-12-20?10:42??JM86_firstime\bin\backup\leakybucketrate.cfg

?????文件?????????66??2004-05-25?15:54??JM86_firstime\bin\backup\sg0conf.cfg

?????文件????????126??2004-05-25?15:54??JM86_firstime\bin\backup\sg2conf.cfg

?????文件???????1188??2004-05-25?15:54??JM86_firstime\bin\backup\sg6conf.cfg

?????文件???????1196??2013-06-17?13:44??JM86_firstime\bin\data.txt

?????文件????????753??2004-09-16?22:38??JM86_firstime\bin\decoder.cfg

?????文件??????11222??2004-09-02?12:46??JM86_firstime\bin\encoder_baseline.cfg

?????文件??????11221??2004-09-02?12:46??JM86_firstime\bin\encoder_extended.cfg

?????文件??????11221??2004-09-16?22:38??JM86_firstime\bin\encoder_main.cfg

?????文件?????114048??2001-09-03?13:05??JM86_firstime\bin\foreman_part_qcif.yuv

?????文件?????937984??2013-05-17?10:00??JM86_firstime\bin\ldecod.exe

?????文件????1213780??2013-05-17?10:00??JM86_firstime\bin\ldecod.ilk

?????文件????????100??2013-06-17?13:44??JM86_firstime\bin\leakybucketparam.cfg

?????文件?????????16??2001-12-20?10:42??JM86_firstime\bin\leakybucketrate.cfg

?????文件????1234432??2013-06-17?13:39??JM86_firstime\bin\lencod.exe

?????文件????1489184??2013-06-17?13:39??JM86_firstime\bin\lencod.ilk

?????文件???????3907??2013-06-17?13:44??JM86_firstime\bin\log.dat

?????文件?????????66??2004-05-25?15:54??JM86_firstime\bin\sg0conf.cfg

?????文件????????126??2004-05-25?15:54??JM86_firstime\bin\sg2conf.cfg

?????文件???????1188??2004-05-25?15:54??JM86_firstime\bin\sg6conf.cfg

?????文件???????2924??2013-06-17?13:44??JM86_firstime\bin\stat.dat

?????文件?????????21??2013-06-17?21:56??JM86_firstime\bin\test.264

?????文件??????????0??2013-06-17?13:44??JM86_firstime\bin\test_rec.yuv

?????文件???????2807??2013-06-17?22:24??JM86_firstime\bin\trace_enc.txt

?????文件??????30821??2004-09-16?18:00??JM86_firstime\CHANGES.TXT

............此處省略391個文件信息