/*?bitstream.c?*/

#include?“types.h“

extern?int?*scalefac_band_long;

static?void?encodeSideInfo（?L3_side_info_t??*si?）;
static?int?encodeMainData（int?l3_enc[2][2][samp_per_frame2]
????????????????L3_side_info_t??*si?）;
static?void?Huffmancodebits（?int?*ix?gr_info?*gi?）;
static?int?HuffmanCode（int?table_select?int?x?int?y?unsigned?int?*code
????????????????unsigned?int?*extword?int?*codebits?int?*extbits）;
static?int?L3_huffman_coder_count1（?struct?huffcodetab?*h
????????????????int?v?int?w?int?x?int?y?）;

/*?bitstream?buffers.
?*?At?a?24K?samplerate?and?8k?bitrate?in?stereo?sideinfo?can?be?up?to?86?frames
?*?ahead?of?its?main?data?（?very?silly?combination?）?*/
#define?FIFO_SIZE?128
static?struct
{
??int?si_len;?/*?number?of?bytes?in?side?info?*/
??int?fr_len;?/*?number?of?data?bytes?in?frame?*/
??unsigned?char?side[40];?/*?side?info?max?len?=?（288?bits?/?8）?+?1?which?gets?cleared?*/
}?fifo[FIFO_SIZE];

static?unsigned?char?main_[4096];??/*?main?data?buffer?（length?always?less?than?this）?*/
static?int?wr=0?rd=0;?/*?read?and?write?index?for?side?fifo?*/
static?int?by=0?bi=0;?/*?byte?and?bit?counts?within?main?or?side?stores?*/
static?int?count=0;??/*?byte?counter?within?current?frame?*/
static?int?bits=0;???/*?bit?counter?used?when?encoding?side?and?main?data?*/

static?struct
{
??FILE?*f;??????????/*?bitstream?output?file?handle?*/
??unsigned?int?i;???/*?file?buffer?index?*/
??unsigned?char?*b;?/*?buffer?pointer?*/
}?bs;

static?unsigned?char?header[4];

#define?BUFFER_SIZE?0x8000?????/*?output?buffer?size?in?bytes?*/

/*
?*?putbytes
?*?--------
?*?put?n?bytes?in?the?output?buffer.?Empty?the?buffer?when?full.
?*/
void?putbytes（unsigned?char?*data?int?n）
{
??unsigned?int?free?=?BUFFER_SIZE?-?bs.i;

??if（n?>=?free）
??{
//????memcpy（&bs.b[bs.i]data（short）free）;
????memcpy（&bs.b[bs.i]datafree）;
????n?-=?free;
????fwrite（bs.bsizeof（unsigned?char）BUFFER_SIZEbs.f）;
//????memcpy（bs.b&data[free]（short）n）;
????memcpy（bs.b&data[free]n）;
????bs.i?=?n;
??}
??else
??{
//????memcpy（&bs.b[bs.i]data（short）n）;
????memcpy（&bs.b[bs.i]datan）;
????bs.i?+=?n;
??}
}

/*
?*?setbytes
?*?--------
?*?set?n?bytes?in?the?output?buffer.?Empty?the?buffer?when?full.
?*/
void?setbytes（unsigned?char?data?int?n）
{
??unsigned?int?free?=?BUFFER_SIZE?-?bs.i;

??if（n?>=?free）
??{
//????memset（&bs.b[bs.i]data（short）free）;
????memset（&bs.b[bs.i]datafree）;
????n?-=?free;
????fwrite（bs.bsizeof（unsigned?char）BUFFER_SIZEbs.f）;
//????memset（bs.bdata（short）n）;
????memset（bs.bdatan）;
????bs.i?=?n;
??}
??else
??{
//????memset（&bs.b[bs.i]data（short）n）;
????memset（&bs.b[bs.i]datan）;
????bs.i?+=?n;
??}
}

/*
?*?open_bit_stream
?*?---------------
?*?open?the?device?to?write?the?bit?stream?into?it
?*/
void?open_bit_stream（char?*filename）
{
??static?unsigned?char?buff[BUFFER_SIZE];

??if?（（bs.f?=?fopen（filename?“wb“））?==?NULL）
????error（“Unable?to

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????19276??2009-12-21?14:59??mp3_encode_fixed\Debug\bitstream.obj

?????文件??????14151??2009-12-29?11:33??mp3_encode_fixed\Debug\coder.obj

?????文件??????12558??2009-12-18?20:03??mp3_encode_fixed\Debug\huffman.obj

?????文件???????6599??2010-04-15?20:21??mp3_encode_fixed\Debug\layer3.obj

?????文件??????36535??2009-12-24?16:16??mp3_encode_fixed\Debug\loop.obj

?????文件??????13484??2010-04-15?20:20??mp3_encode_fixed\Debug\main.obj

?????文件?????237648??2010-04-15?20:21??mp3_encode_fixed\Debug\mp3_encode_fixed.exe

?????文件?????214700??2010-04-15?20:21??mp3_encode_fixed\Debug\mp3_encode_fixed.ilk

?????文件?????223664??2010-04-15?20:21??mp3_encode_fixed\Debug\mp3_encode_fixed.pch

?????文件?????566272??2010-04-15?20:21??mp3_encode_fixed\Debug\mp3_encode_fixed.pdb

?????文件???????2440??2009-12-09?14:38??mp3_encode_fixed\Debug\testtime.obj

?????文件???????2304??2009-12-18?18:16??mp3_encode_fixed\Debug\utils.obj

?????文件??????58368??2010-04-19?19:18??mp3_encode_fixed\Debug\vc60.idb

?????文件??????53248??2010-04-15?20:21??mp3_encode_fixed\Debug\vc60.pdb

?????文件???????9058??2009-12-29?11:16??mp3_encode_fixed\Debug\wave.obj

?????文件??????17261??2010-04-14?20:22??mp3_encode_fixed\include\table1.h

?????文件??????41023??2009-12-18?20:06??mp3_encode_fixed\include\table2.h

?????文件???????3743??2010-04-15?20:21??mp3_encode_fixed\include\types.h

?????文件????????237??2009-12-21?10:33??mp3_encode_fixed\include\utils.h

?????文件???????5150??2010-04-14?20:29??mp3_encode_fixed\mp3_encode_fixed.dsp

?????文件????????540??2009-11-30?10:32??mp3_encode_fixed\mp3_encode_fixed.dsw

?????文件??????91136??2010-04-27?15:32??mp3_encode_fixed\mp3_encode_fixed.ncb

?????文件??????51712??2010-04-27?15:32??mp3_encode_fixed\mp3_encode_fixed.opt

?????文件????????266??2010-04-19?19:18??mp3_encode_fixed\mp3_encode_fixed.plg

?????文件??????15325??2009-12-21?14:25??mp3_encode_fixed\source\bitstream.c

?????文件???????4046??2009-12-29?11:33??mp3_encode_fixed\source\coder.c

?????文件??????13993??2009-12-18?20:03??mp3_encode_fixed\source\huffman.c

?????文件???????4426??2010-04-15?20:21??mp3_encode_fixed\source\layer3.c

?????文件??????15706??2009-12-24?16:15??mp3_encode_fixed\source\loop.c

?????文件???????6211??2010-04-14?20:24??mp3_encode_fixed\source\main.c

............此處省略8個(gè)文件信息