Aren/haiku
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

added Jamfiles to include mpglib

Browse Source 
clean up of mpglib
removed global variable from mpglib, should be thread save now
moved global initialization code in it's own function


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5431 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
beveloper 2003-11-21 17:54:10 +00:00
parent f3f8a29195
commit 90ca169469
10 changed files with 90 additions and 103 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/add-ons/media/plugins/mp3_decoder/Jamfile Normal file
View File

@ -0,0 +1,11 @@
SubDir OBOS_TOP src add-ons media plugins mp3_decoder ;
UsePrivateHeaders media ;
Addon mp3_decoder : media plugins :
mp3DecoderPlugin.cpp
;
LinkSharedOSLibs mp3_decoder : be libmedia.so ;
SubInclude OBOS_TOP src add-ons media plugins mp3_decoder mpglib ;

4
src/add-ons/media/plugins/mp3_decoder/mpglib/CHANGES
View File

@ -2,3 +2,7 @@
- VBR fix
- Layer2 and Layer1 added
21/Nov/2003: (by Marcus Overhagen)
- modified for usage with OpenBeOS
- removed global variable struct mpstr *gmp
- moved initialization into separate function

12
src/add-ons/media/plugins/mp3_decoder/mpglib/Jamfile Normal file
View File

@ -0,0 +1,12 @@
SubDir OBOS_TOP src add-ons media plugins mp3_decoder mpglib ;
StaticLibrary mpglib :
common.c
dct64_i386.c
decode_i386.c
interface.c
layer1.c
layer2.c
layer3.c
tabinit.c
;

16
src/add-ons/media/plugins/mp3_decoder/mpglib/decode_i386.c
View File

@ -17,22 +17,20 @@
#include "mpg123.h"
#include "mpglib.h"
extern struct mpstr *gmp;
/* old WRITE_SAMPLE */
#define WRITE_SAMPLE(samples,sum,clip) \
if( (sum) > 32767.0) { *(samples) = 0x7fff; (clip)++; } \
else if( (sum) < -32768.0) { *(samples) = -0x8000; (clip)++; } \
else { *(samples) = sum; }
int synth_1to1_mono(real *bandPtr,unsigned char *samples,int *pnt)
int synth_1to1_mono(struct mpstr *mp, real *bandPtr,unsigned char *samples,int *pnt)
{
short samples_tmp[64];
short *tmp1 = samples_tmp;
int i,ret;
int pnt1 = 0;
ret = synth_1to1(bandPtr,0,(unsigned char *) samples_tmp,&pnt1);
ret = synth_1to1(mp, bandPtr,0,(unsigned char *) samples_tmp,&pnt1);
samples += *pnt;
for(i=0;i<32;i++) {
@ -46,7 +44,7 @@ int synth_1to1_mono(real *bandPtr,unsigned char *samples,int *pnt)
}
int synth_1to1(real *bandPtr,int channel,unsigned char *out,int *pnt)
int synth_1to1(struct mpstr *mp, real *bandPtr,int channel,unsigned char *out,int *pnt)
{
static const int step = 2;
int bo;
@ -56,16 +54,16 @@ int synth_1to1(real *bandPtr,int channel,unsigned char *out,int *pnt)
int clip = 0;
int bo1;
bo = gmp->synth_bo;
bo = mp->synth_bo;
if(!channel) {
bo--;
bo &= 0xf;
buf = gmp->synth_buffs[0];
buf = mp->synth_buffs[0];
}
else {
samples++;
buf = gmp->synth_buffs[1];
buf = mp->synth_buffs[1];
}
if(bo & 0x1) {
@ -79,7 +77,7 @@ int synth_1to1(real *bandPtr,int channel,unsigned char *out,int *pnt)
dct64(buf[0]+bo,buf[1]+bo+1,bandPtr);
}
gmp->synth_bo = bo;
mp->synth_bo = bo;
{
register int j;

43
src/add-ons/media/plugins/mp3_decoder/mpglib/interface.c
View File

@ -1,18 +1,18 @@
#include <stdlib.h>
#include <stdio.h>
#include "mpg123.h"
#include "mpglib.h"
/* Global mp .. it's a hack */
struct mpstr *gmp;
BOOL InitMP3(struct mpstr *mp)
void InitMpgLib(void)
{
static int init = 0;
make_decode_tables(32767);
init_layer2();
init_layer3(SBLIMIT);
}
void InitMP3(struct mpstr *mp)
{
memset(mp,0,sizeof(struct mpstr));
mp->framesize = 0;
@ -22,15 +22,6 @@ BOOL InitMP3(struct mpstr *mp)
mp->fr.single = -1;
mp->bsnum = 0;
mp->synth_bo = 1;
if(!init) {
init = 1;
make_decode_tables(32767);
init_layer2();
init_layer3(SBLIMIT);
}
return !0;
}
void ExitMP3(struct mpstr *mp)
@ -139,8 +130,6 @@ int decodeMP3(struct mpstr *mp,char *in,int isize,char *out,
{
int len;
gmp = mp;
if(osize < 4608) {
fprintf(stderr,"To less out space\n");
return MP3_ERR;
@ -193,13 +182,13 @@ int decodeMP3(struct mpstr *mp,char *in,int isize,char *out,
getbits(16);
switch(mp->fr.lay) {
case 1:
do_layer1(&mp->fr,(unsigned char *) out,done);
do_layer1(mp, &mp->fr,(unsigned char *) out,done);
break;
case 2:
do_layer2(&mp->fr,(unsigned char *) out,done);
do_layer2(mp, &mp->fr,(unsigned char *) out,done);
break;
case 3:
do_layer3(&mp->fr,(unsigned char *) out,done);
do_layer3(mp, &mp->fr,(unsigned char *) out,done);
break;
}
@ -209,21 +198,17 @@ int decodeMP3(struct mpstr *mp,char *in,int isize,char *out,
return MP3_OK;
}
int set_pointer(long backstep)
int set_pointer(struct mpstr *mp, long backstep)
{
unsigned char *bsbufold;
if(gmp->fsizeold < 0 && backstep > 0) {
if(mp->fsizeold < 0 && backstep > 0) {
fprintf(stderr,"Can't step back %ld!\n",backstep);
return MP3_ERR;
}
bsbufold = gmp->bsspace[gmp->bsnum] + 512;
bsbufold = mp->bsspace[mp->bsnum] + 512;
wordpointer -= backstep;
if (backstep)
memcpy(wordpointer,bsbufold+gmp->fsizeold-backstep,backstep);
memcpy(wordpointer,bsbufold+mp->fsizeold-backstep,backstep);
bitindex = 0;
return MP3_OK;
}

12
src/add-ons/media/plugins/mp3_decoder/mpglib/layer1.c
View File

@ -10,6 +10,10 @@
#include "mpg123.h"
void I_step_one(unsigned int balloc[], unsigned int scale_index[2][SBLIMIT],struct frame *fr);
void I_step_two(real fraction[2][SBLIMIT],unsigned int balloc[2*SBLIMIT],
unsigned int scale_index[2][SBLIMIT],struct frame *fr);
void I_step_one(unsigned int balloc[], unsigned int scale_index[2][SBLIMIT],struct frame *fr)
{
unsigned int *ba=balloc;
@ -111,7 +115,7 @@ void I_step_two(real fraction[2][SBLIMIT],unsigned int balloc[2*SBLIMIT],
}
}
int do_layer1(struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
int do_layer1(struct mpstr *mp, struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
{
int clip=0;
int i,stereo = fr->stereo;
@ -132,12 +136,12 @@ int do_layer1(struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
I_step_two(fraction,balloc,scale_index,fr);
if(single >= 0) {
clip += synth_1to1_mono( (real*)fraction[single],pcm_sample,pcm_point);
clip += synth_1to1_mono(mp, (real*)fraction[single],pcm_sample,pcm_point);
}
else {
int p1 = *pcm_point;
clip += synth_1to1( (real*)fraction[0],0,pcm_sample,&p1);
clip += synth_1to1( (real*)fraction[1],1,pcm_sample,pcm_point);
clip += synth_1to1(mp, (real*)fraction[0],0,pcm_sample,&p1);
clip += synth_1to1(mp, (real*)fraction[1],1,pcm_sample,pcm_point);
}
}

11
src/add-ons/media/plugins/mp3_decoder/mpglib/layer2.c
View File

@ -14,6 +14,9 @@ static int grp_9tab[1024 * 3] = { 0, }; /* used: 729 */
real muls[27][64]; /* also used by layer 1 */
void II_step_one(unsigned int *bit_alloc,int *scale,struct frame *fr);
void II_step_two(unsigned int *bit_alloc,real fraction[2][4][SBLIMIT],int *scale,struct frame *fr,int x1);
void init_layer2(void)
{
static double mulmul[27] = {
@ -247,7 +250,7 @@ static void II_select_table(struct frame *fr)
fr->II_sblimit = sblim;
}
int do_layer2(struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
int do_layer2(struct mpstr *mp, struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
{
int clip=0;
int i,j;
@ -271,12 +274,12 @@ int do_layer2(struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
II_step_two(bit_alloc,fraction,scale,fr,i>>2);
for (j=0;j<3;j++) {
if(single >= 0) {
clip += synth_1to1_mono(fraction[0][j],pcm_sample,pcm_point);
clip += synth_1to1_mono(mp, fraction[0][j],pcm_sample,pcm_point);
}
else {
int p1 = *pcm_point;
clip += synth_1to1(fraction[0][j],0,pcm_sample,&p1);
clip += synth_1to1(fraction[1][j],1,pcm_sample,pcm_point);
clip += synth_1to1(mp, fraction[0][j],0,pcm_sample,&p1);
clip += synth_1to1(mp, fraction[1][j],1,pcm_sample,pcm_point);
}
}

28
src/add-ons/media/plugins/mp3_decoder/mpglib/layer3.c
View File

@ -10,8 +10,6 @@
#include "mpglib.h"
#include "huffman.h"
extern struct mpstr *gmp;
#define MPEG1
@ -1812,12 +1810,12 @@ static void dct12(real *in,real *rawout1,real *rawout2,register real *wi,registe
/*
* III_hybrid
*/
static void III_hybrid(real fsIn[SBLIMIT][SSLIMIT],real tsOut[SSLIMIT][SBLIMIT],
static void III_hybrid(struct mpstr *mp, real fsIn[SBLIMIT][SSLIMIT],real tsOut[SSLIMIT][SBLIMIT],
int ch,struct gr_info_s *gr_info)
{
real *tspnt = (real *) tsOut;
real (*block)[2][SBLIMIT*SSLIMIT] = gmp->hybrid_block;
int *blc = gmp->hybrid_blc;
real (*block)[2][SBLIMIT*SSLIMIT] = mp->hybrid_block;
int *blc = mp->hybrid_blc;
real *rawout1,*rawout2;
int bt;
int sb = 0;
@ -1840,13 +1838,13 @@ static void III_hybrid(real fsIn[SBLIMIT][SSLIMIT],real tsOut[SSLIMIT][SBLIMIT],
bt = gr_info->block_type;
if(bt == 2) {
for (; sb<gr_info->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) {
for (; sb<(int)gr_info->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) {
dct12(fsIn[sb],rawout1,rawout2,win[2],tspnt);
dct12(fsIn[sb+1],rawout1+18,rawout2+18,win1[2],tspnt+1);
}
}
else {
for (; sb<gr_info->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) {
for (; sb<(int)gr_info->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) {
dct36(fsIn[sb],rawout1,rawout2,win[bt],tspnt);
dct36(fsIn[sb+1],rawout1+18,rawout2+18,win1[bt],tspnt+1);
}
@ -1864,7 +1862,7 @@ static void III_hybrid(real fsIn[SBLIMIT][SSLIMIT],real tsOut[SSLIMIT][SBLIMIT],
/*
* main layer3 handler
*/
int do_layer3(struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
int do_layer3(struct mpstr *mp, struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
{
int gr, ch, ss,clip=0;
int scalefacs[2][39]; /* max 39 for short[13][3] mode, mixed: 38, long: 22 */
@ -1906,7 +1904,7 @@ int do_layer3(struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
#endif
}
if(set_pointer(sideinfo.main_data_begin) == MP3_ERR)
if(set_pointer(mp, sideinfo.main_data_begin) == MP3_ERR)
return -1;
for (gr=0;gr<granules;gr++)
@ -1971,7 +1969,7 @@ int do_layer3(struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
{
register int i;
register real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1];
for(i=0;i<SSLIMIT*gr_info->maxb;i++,in0++)
for(i=0;i<(int)(SSLIMIT*gr_info->maxb);i++,in0++)
*in0 = (*in0 + *in1++); /* *0.5 done by pow-scale */
}
break;
@ -1979,7 +1977,7 @@ int do_layer3(struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
{
register int i;
register real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1];
for(i=0;i<SSLIMIT*gr_info->maxb;i++)
for(i=0;i<(int)(SSLIMIT*gr_info->maxb);i++)
*in0++ = *in1++;
}
break;
@ -1989,17 +1987,17 @@ int do_layer3(struct frame *fr,unsigned char *pcm_sample,int *pcm_point)
for(ch=0;ch<stereo1;ch++) {
struct gr_info_s *gr_info = &(sideinfo.ch[ch].gr[gr]);
III_antialias(hybridIn[ch],gr_info);
III_hybrid(hybridIn[ch], hybridOut[ch], ch,gr_info);
III_hybrid(mp, hybridIn[ch], hybridOut[ch], ch,gr_info);
}
for(ss=0;ss<SSLIMIT;ss++) {
if(single >= 0) {
clip += synth_1to1_mono(hybridOut[0][ss],pcm_sample,pcm_point);
clip += synth_1to1_mono(mp, hybridOut[0][ss],pcm_sample,pcm_point);
}
else {
int p1 = *pcm_point;
clip += synth_1to1(hybridOut[0][ss],0,pcm_sample,&p1);
clip += synth_1to1(hybridOut[1][ss],1,pcm_sample,pcm_point);
clip += synth_1to1(mp, hybridOut[0][ss],0,pcm_sample,&p1);
clip += synth_1to1(mp, hybridOut[1][ss],1,pcm_sample,pcm_point);
}
}
}

42
src/add-ons/media/plugins/mp3_decoder/mpglib/mpg123.h
View File

@ -1,28 +1,9 @@
#include <stdio.h>
#include <string.h>
#include <signal.h>
#ifndef WIN32
#include <sys/signal.h>
#include <unistd.h>
#endif
#include <math.h>
#ifdef _WIN32
# undef WIN32
# define WIN32
# define M_PI 3.14159265358979323846
# define M_SQRT2 1.41421356237309504880
# define REAL_IS_FLOAT
# define NEW_DCT9
# define random rand
# define srandom srand
#endif
#ifdef REAL_IS_FLOAT
# define real float
#elif defined(REAL_IS_LONG_DOUBLE)
@ -40,13 +21,6 @@
/* AUDIOBUFSIZE = n*64 with n=1,2,3 ... */
#define AUDIOBUFSIZE 16384
#ifndef FALSE
#define FALSE 0
#endif
#ifndef FALSE
#define TRUE 1
#endif
#define SBLIMIT 32
#define SSLIMIT 18
@ -64,6 +38,8 @@
/* Pre Shift fo 16 to 8 bit converter table */
#define AUSHIFT (3)
struct mpstr;
struct frame {
int stereo;
int jsbound;
@ -99,15 +75,15 @@ struct parameter {
extern unsigned int get1bit(void);
extern unsigned int getbits(int);
extern unsigned int getbits_fast(int);
extern int set_pointer(long);
extern int set_pointer(struct mpstr *mp, long backstep);
extern unsigned char *wordpointer;
extern int bitindex;
extern void make_decode_tables(long scaleval);
extern int do_layer3(struct frame *fr,unsigned char *,int *);
extern int do_layer2(struct frame *fr,unsigned char *,int *);
extern int do_layer1(struct frame *fr,unsigned char *,int *);
extern int do_layer3(struct mpstr *mp, struct frame *fr,unsigned char *,int *);
extern int do_layer2(struct mpstr *mp, struct frame *fr,unsigned char *,int *);
extern int do_layer1(struct mpstr *mp, struct frame *fr,unsigned char *,int *);
extern int decode_header(struct frame *fr,unsigned long newhead);
@ -142,9 +118,9 @@ struct III_sideinfo
} ch[2];
};
extern int synth_1to1 (real *,int,unsigned char *,int *);
extern int synth_1to1 (struct mpstr *mp, real *,int,unsigned char *,int *);
extern int synth_1to1_8bit (real *,int,unsigned char *,int *);
extern int synth_1to1_mono (real *,unsigned char *,int *);
extern int synth_1to1_mono (struct mpstr *mp, real *,unsigned char *,int *);
extern int synth_1to1_mono2stereo (real *,unsigned char *,int *);
extern int synth_1to1_8bit_mono (real *,unsigned char *,int *);
extern int synth_1to1_8bit_mono2stereo (real *,unsigned char *,int *);
@ -189,5 +165,3 @@ extern real decwin[512+32];
extern real *pnts[5];
extern struct parameter param;

14
src/add-ons/media/plugins/mp3_decoder/mpglib/mpglib.h
View File

@ -1,3 +1,5 @@
#ifndef _MPGLIB_H
#define _MPGLIB_H
struct buf {
unsigned char *pnt;
@ -29,20 +31,16 @@ struct mpstr {
int synth_bo;
};
#ifndef BOOL
#define BOOL int
#endif
#define MP3_ERR -1
#define MP3_OK 0
#define MP3_NEED_MORE 1
#ifdef __cplusplus
extern "C" {
#endif
BOOL InitMP3(struct mpstr *mp);
void InitMpgLib(void);
void InitMP3(struct mpstr *mp);
int decodeMP3(struct mpstr *mp,char *inmemory,int inmemsize,
char *outmemory,int outmemsize,int *done);
void ExitMP3(struct mpstr *mp);
@ -51,4 +49,4 @@ void ExitMP3(struct mpstr *mp);
}
#endif
#endif