From d6b088044e161a27d49df537bbb6d998a8d0e50d Mon Sep 17 00:00:00 2001 From: musil Date: Sat, 9 Dec 2006 02:00:52 +0000 Subject: // class_sethelpsymbol(); changed help-*.pd to *-help.pd chanded file structure to standard 1st step remove old svn path=/trunk/externals/iemlib/; revision=6756 --- iem_mp3/mp3play~-help.pd | 149 ++ iem_mp3/src/iem_mp3.c | 31 + iem_mp3/src/iem_mp3.dsp | 85 + iem_mp3/src/iem_mp3.dsw | 29 + iem_mp3/src/iemlib.h | 108 ++ iem_mp3/src/makefile | 4 + iem_mp3/src/makefile_linux | 46 + iem_mp3/src/makefile_win | 31 + iem_mp3/src/mp3play~.c | 3859 ++++++++++++++++++++++++++++++++++++++++++++ iem_mp3/test1.mp3 | Bin 0 -> 62693 bytes 10 files changed, 4342 insertions(+) create mode 100644 iem_mp3/mp3play~-help.pd create mode 100644 iem_mp3/src/iem_mp3.c create mode 100644 iem_mp3/src/iem_mp3.dsp create mode 100644 iem_mp3/src/iem_mp3.dsw create mode 100644 iem_mp3/src/iemlib.h create mode 100644 iem_mp3/src/makefile create mode 100644 iem_mp3/src/makefile_linux create mode 100644 iem_mp3/src/makefile_win create mode 100644 iem_mp3/src/mp3play~.c create mode 100644 iem_mp3/test1.mp3 (limited to 'iem_mp3') diff --git a/iem_mp3/mp3play~-help.pd b/iem_mp3/mp3play~-help.pd new file mode 100644 index 0000000..de74fca --- /dev/null +++ b/iem_mp3/mp3play~-help.pd @@ -0,0 +1,149 @@ +#N canvas 219 14 751 609 10; +#X obj 118 308 mp3play~; +#X msg 130 153 start; +#X msg 145 177 stop; +#X msg 157 201 pause; +#X msg 118 91 open \$1; +#X obj 118 71 openpanel; +#X msg 118 50 bang; +#X text 18 5 MPEG LAYER III PLAYER; +#N canvas 217 0 624 445 output 0; +#X obj 451 183 t b; +#X obj 451 133 f; +#X obj 451 83 inlet; +#X text 457 52 mute; +#X obj 451 208 f; +#X msg 538 201 0; +#X msg 451 108 bang; +#X obj 451 158 moses 1; +#X obj 538 176 t b f; +#X obj 510 140 moses 1; +#X obj 141 131 dbtorms; +#X obj 510 115 r master-lvl; +#X obj 141 45 r master-lvl; +#X obj 451 233 s master-lvl; +#X obj 80 141 inlet~; +#X obj 312 64 inlet; +#X text 312 41 level; +#X obj 312 123 s master-lvl; +#X msg 141 251 set \$1; +#X obj 141 314 outlet; +#X msg 327 87 \; pd dsp 1; +#X obj 141 177 line~; +#X obj 80 215 *~; +#X obj 41 245 dac~; +#X obj 141 154 pack 0 50; +#X text 52 115 audio; +#X text 151 113 show level; +#X obj 26 141 inlet~; +#X obj 26 214 *~; +#X obj 152 202 loadbang; +#X msg 152 228 95; +#X connect 0 0 4 0; +#X connect 1 0 7 0; +#X connect 2 0 6 0; +#X connect 4 0 13 0; +#X connect 5 0 13 0; +#X connect 6 0 1 0; +#X connect 7 0 0 0; +#X connect 7 1 8 0; +#X connect 8 0 5 0; +#X connect 9 1 4 1; +#X connect 10 0 24 0; +#X connect 11 0 1 1; +#X connect 11 0 9 0; +#X connect 12 0 10 0; +#X connect 12 0 18 0; +#X connect 14 0 22 0; +#X connect 15 0 17 0; +#X connect 15 0 20 0; +#X connect 18 0 19 0; +#X connect 21 0 28 1; +#X connect 21 0 22 1; +#X connect 22 0 23 1; +#X connect 24 0 21 0; +#X connect 27 0 28 0; +#X connect 28 0 23 0; +#X connect 29 0 30 0; +#X connect 30 0 19 0; +#X restore 117 450 pd output; +#X floatatom 155 427 0 0 0 0 - - -; +#X msg 193 432 MUTE; +#X text 228 431 <-- output amplitude; +#X text 247 335 player bangs out here when finished; +#X text 171 151 start the player; +#X text 203 195 push pause to interrupt. push pause again (or play) +to resume playing; +#X text 155 51 click here to select file; +#X obj 169 334 print EOF; +#X msg 166 224 open_again; +#X text 250 224 reopen the file after stop; +#X text 181 170 stop the player and close the file. You habe to push +stop before you open a new file.; +#X text 27 487 The player supports mono and stereo MPEG Layer III files. +Any bitrate is supported - but we have tested 128Kb/s and 32 Kb/s only. +; +#X text 27 528 The sample rate of the output depends on the system +sample rate of pd:; +#X text 25 555 If the sample rate of pd is set to 44100 \, files having +the sample rates of 44100 \, 22050 and 11025 are correctly played \, +other files will be transposed.; +#X text 18 20 V 0.1 Thomas Musil \, Norbert Math - IEM; +#X floatatom 152 392 8 0 0 0 - - -; +#X text 218 393 sec; +#X floatatom 169 283 6 0 0 0 - - -; +#X msg 178 247 open_again_at; +#X text 222 283 offset in sec; +#X obj 38 72 openpanel; +#X msg 38 51 bang; +#X msg 38 122 open_at \$1; +#X text 126 121 open_at: open a selected file to play \, beginning +at offset; +#X text 173 90 open: open a selected file to play; +#X text 281 247 reopen the file at offset after stop; +#X text 181 308 no argument \, mp3play~ prints file-header to console +; +#X text 258 392 current playing-time; +#X obj 18 225 tgl 15 0 empty empty empty 20 8 0 10 -262144 -1 -1 1 +1; +#X obj 18 245 dsp; +#X floatatom 18 303 5 0 0 0 - - -; +#X text 65 303 %; +#X obj 152 365 speedlim 50; +#X floatatom 34 271 5 0 0 0 - - -; +#X text 77 273 %; +#X msg 517 291 open test1.mp3; +#X obj 554 237 loadbang; +#X text 518 309 this music is composed; +#X text 529 319 by Bernhard Lang; +#X text 508 329 "Hommage an Martin Arnold"; +#X text 515 428 IEM KUG; +#X text 499 416 musil; +#X text 529 416 @; +#X text 535 416 iem.at; +#X text 450 405 (c) Thomas Musil 2000 - 2005; +#X text 498 438 Graz \, Austria; +#X connect 0 0 8 0; +#X connect 0 1 8 1; +#X connect 0 2 41 0; +#X connect 0 3 16 0; +#X connect 1 0 0 0; +#X connect 2 0 0 0; +#X connect 3 0 0 0; +#X connect 4 0 0 0; +#X connect 5 0 4 0; +#X connect 6 0 5 0; +#X connect 8 0 9 0; +#X connect 9 0 8 2; +#X connect 10 0 8 3; +#X connect 17 0 0 0; +#X connect 26 0 0 1; +#X connect 27 0 0 0; +#X connect 29 0 31 0; +#X connect 30 0 29 0; +#X connect 31 0 0 0; +#X connect 37 0 38 0; +#X connect 38 0 39 0; +#X connect 38 1 42 0; +#X connect 41 0 24 0; +#X connect 44 0 0 0; diff --git a/iem_mp3/src/iem_mp3.c b/iem_mp3/src/iem_mp3.c new file mode 100644 index 0000000..b8a7a8b --- /dev/null +++ b/iem_mp3/src/iem_mp3.c @@ -0,0 +1,31 @@ +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iem_mp3 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */ + +#include "m_pd.h" +#include "iemlib.h" + +static t_class *iem_mp3_class; + +static void *iem_mp3_new(void) +{ + t_object *x = (t_object *)pd_new(iem_mp3_class); + + return (x); +} + +void mp3play_tilde_setup(void); + +/* ------------------------ setup routine ------------------------- */ + +void iem_mp3_setup(void) +{ + iem_mp3_class = class_new(gensym("iem_mp3"), iem_mp3_new, 0, + sizeof(t_object), CLASS_NOINLET, 0); + + mp3play_tilde_setup(); + + post("iem_mp3 (R-1.17) library loaded! (c) Thomas Musil 11.2006"); + post(" musil%ciem.at iem KUG Graz Austria", '@'); +} diff --git a/iem_mp3/src/iem_mp3.dsp b/iem_mp3/src/iem_mp3.dsp new file mode 100644 index 0000000..796189b --- /dev/null +++ b/iem_mp3/src/iem_mp3.dsp @@ -0,0 +1,85 @@ +# Microsoft Developer Studio Project File - Name="iem_mp3" - Package Owner=<4> +# Microsoft Developer Studio Generated Build File, Format Version 6.00 +# ** NICHT BEARBEITEN ** + +# TARGTYPE "Win32 (x86) External Target" 0x0106 + +CFG=iem_mp3 - Win32 Debug +!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE +!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl +!MESSAGE +!MESSAGE NMAKE /f "iem_mp3.mak". +!MESSAGE +!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben +!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: +!MESSAGE +!MESSAGE NMAKE /f "iem_mp3.mak" CFG="iem_mp3 - Win32 Debug" +!MESSAGE +!MESSAGE Für die Konfiguration stehen zur Auswahl: +!MESSAGE +!MESSAGE "iem_mp3 - Win32 Release" (basierend auf "Win32 (x86) External Target") +!MESSAGE "iem_mp3 - Win32 Debug" (basierend auf "Win32 (x86) External Target") +!MESSAGE + +# Begin Project +# PROP AllowPerConfigDependencies 0 +# PROP Scc_ProjName "" +# PROP Scc_LocalPath "" + +!IF "$(CFG)" == "iem_mp3 - Win32 Release" + +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir "Release" +# PROP BASE Intermediate_Dir "Release" +# PROP BASE Cmd_Line "NMAKE /f makefile_win" +# PROP BASE Rebuild_Opt "/a" +# PROP BASE Target_File "makefile_win.exe" +# PROP BASE Bsc_Name "makefile_win.bsc" +# PROP BASE Target_Dir "" +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir "Release" +# PROP Intermediate_Dir "Release" +# PROP Cmd_Line "NMAKE /f makefile_win" +# PROP Rebuild_Opt "/a" +# PROP Target_File "iem_mp3.exe" +# PROP Bsc_Name "iem_mp3.bsc" +# PROP Target_Dir "" + +!ELSEIF "$(CFG)" == "iem_mp3 - Win32 Debug" + +# PROP BASE Use_Debug_Libraries 1 +# PROP BASE Output_Dir "Debug" +# PROP BASE Intermediate_Dir "Debug" +# PROP BASE Cmd_Line "NMAKE /f makefile_win" +# PROP BASE Rebuild_Opt "/a" +# PROP BASE Target_File "makefile_win.exe" +# PROP BASE Bsc_Name "makefile_win.bsc" +# PROP BASE Target_Dir "" +# PROP Use_Debug_Libraries 1 +# PROP Output_Dir "Debug" +# PROP Intermediate_Dir "Debug" +# PROP Cmd_Line "NMAKE /f makefile_win" +# PROP Rebuild_Opt "/a" +# PROP Target_File "iem_mp3.exe" +# PROP Bsc_Name "iem_mp3.bsc" +# PROP Target_Dir "" + +!ENDIF + +# Begin Target + +# Name "iem_mp3 - Win32 Release" +# Name "iem_mp3 - Win32 Debug" + +!IF "$(CFG)" == "iem_mp3 - Win32 Release" + +!ELSEIF "$(CFG)" == "iem_mp3 - Win32 Debug" + +!ENDIF + +# Begin Source File + +SOURCE=.\makefile_win +# End Source File +# End Target +# End Project diff --git a/iem_mp3/src/iem_mp3.dsw b/iem_mp3/src/iem_mp3.dsw new file mode 100644 index 0000000..f885c80 --- /dev/null +++ b/iem_mp3/src/iem_mp3.dsw @@ -0,0 +1,29 @@ +Microsoft Developer Studio Workspace File, Format Version 6.00 +# WARNUNG: DIESE ARBEITSBEREICHSDATEI DARF NICHT BEARBEITET ODER GELÖSCHT WERDEN! + +############################################################################### + +Project: "iem_mp3"=.\iem_mp3.dsp - Package Owner=<4> + +Package=<5> +{{{ +}}} + +Package=<4> +{{{ +}}} + +############################################################################### + +Global: + +Package=<5> +{{{ +}}} + +Package=<3> +{{{ +}}} + +############################################################################### + diff --git a/iem_mp3/src/iemlib.h b/iem_mp3/src/iemlib.h new file mode 100644 index 0000000..36d47ca --- /dev/null +++ b/iem_mp3/src/iemlib.h @@ -0,0 +1,108 @@ +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iemlib written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */ + +#ifndef __IEMLIB_H__ +#define __IEMLIB_H__ + + +#define IS_A_POINTER(atom,index) ((atom+index)->a_type == A_POINTER) +#define IS_A_FLOAT(atom,index) ((atom+index)->a_type == A_FLOAT) +#define IS_A_SYMBOL(atom,index) ((atom+index)->a_type == A_SYMBOL) +#define IS_A_DOLLAR(atom,index) ((atom+index)->a_type == A_DOLLAR) +#define IS_A_DOLLSYM(atom,index) ((atom+index)->a_type == A_DOLLSYM) +#define IS_A_SEMI(atom,index) ((atom+index)->a_type == A_SEMI) +#define IS_A_COMMA(atom,index) ((atom+index)->a_type == A_COMMA) + + +#ifdef NT +int sys_noloadbang; +//t_symbol *iemgui_key_sym=0; +#include +#else +extern int sys_noloadbang; +//extern t_symbol *iemgui_key_sym; +#include +#endif + +#define DEFDELVS 64 +#define XTRASAMPS 4 +#define SAMPBLK 4 + + +#define UNITBIT32 1572864. /* 3*2^19; bit 32 has place value 1 */ + +/* machine-dependent definitions. These ifdefs really +should have been by CPU type and not by operating system! */ +#ifdef IRIX +/* big-endian. Most significant byte is at low address in memory */ +#define HIOFFSET 0 /* word offset to find MSB */ +#define LOWOFFSET 1 /* word offset to find LSB */ +#define int32 long /* a data type that has 32 bits */ +#else +#ifdef MSW +/* little-endian; most significant byte is at highest address */ +#define HIOFFSET 1 +#define LOWOFFSET 0 +#define int32 long +#else +#ifdef __FreeBSD__ +#include +#if BYTE_ORDER == LITTLE_ENDIAN +#define HIOFFSET 1 +#define LOWOFFSET 0 +#else +#define HIOFFSET 0 /* word offset to find MSB */ +#define LOWOFFSET 1 /* word offset to find LSB */ +#endif /* BYTE_ORDER */ +#include +#define int32 int32_t +#endif +#ifdef __linux__ + +#include + +#if !defined(__BYTE_ORDER) || !defined(__LITTLE_ENDIAN) +#error No byte order defined +#endif + +#if __BYTE_ORDER == __LITTLE_ENDIAN +#define HIOFFSET 1 +#define LOWOFFSET 0 +#else +#define HIOFFSET 0 /* word offset to find MSB */ +#define LOWOFFSET 1 /* word offset to find LSB */ +#endif /* __BYTE_ORDER */ + +#include +#define int32 int32_t + +#else +#ifdef __APPLE__ +#define HIOFFSET 0 /* word offset to find MSB */ +#define LOWOFFSET 1 /* word offset to find LSB */ +#define int32 int /* a data type that has 32 bits */ + +#endif /* __APPLE__ */ +#endif /* __linux__ */ +#endif /* MSW */ +#endif /* SGI */ + +union tabfudge +{ + double tf_d; + int32 tf_i[2]; +}; + +#ifdef __i386__ +#define IEM_DENORMAL(f) ((((*(unsigned int*)&(f))&0x60000000)==0) || \ +(((*(unsigned int*)&(f))&0x60000000)==0x60000000)) +/* more stringent test: anything not between 1e-19 and 1e19 in absolute val */ +#else + +#define IEM_DENORMAL(f) 0 + +#endif + +#endif diff --git a/iem_mp3/src/makefile b/iem_mp3/src/makefile new file mode 100644 index 0000000..700376d --- /dev/null +++ b/iem_mp3/src/makefile @@ -0,0 +1,4 @@ +TARGET = iem_mp3 + +include ../../Make.include + diff --git a/iem_mp3/src/makefile_linux b/iem_mp3/src/makefile_linux new file mode 100644 index 0000000..e8fa3b9 --- /dev/null +++ b/iem_mp3/src/makefile_linux @@ -0,0 +1,46 @@ +current: all + +.SUFFIXES: .pd_linux + +INCLUDE = -I. -I/usr/local/src/pd/src + +LDFLAGS = -export-dynamic -shared +LIB = -ldl -lm -lpthread + +#select either the DBG and OPT compiler flags below: + +CFLAGS = -DPD -DUNIX -W -Werror -Wno-unused \ + -Wno-parentheses -Wno-switch -O6 -funroll-loops -fomit-frame-pointer -fno-strict-aliasing \ + -DDL_OPEN + +SYSTEM = $(shell uname -m) + +# the sources + +SRC = mp3play~.c \ + iem_mp3.c + +TARGET = iem_mp3.pd_linux + + +OBJ = $(SRC:.c=.o) + +# +# ------------------ targets ------------------------------------ +# + +clean: + rm $(TARGET) + rm *.o + +all: $(OBJ) + @echo :: $(OBJ) + $(LD) $(LDFLAGS) -o $(TARGET) *.o $(LIB) + strip --strip-unneeded $(TARGET) + +$(OBJ) : %.o : %.c + $(CC) $(CFLAGS) $(INCLUDE) -c -o $*.o $*.c + + + + diff --git a/iem_mp3/src/makefile_win b/iem_mp3/src/makefile_win new file mode 100644 index 0000000..7ec5182 --- /dev/null +++ b/iem_mp3/src/makefile_win @@ -0,0 +1,31 @@ +all: ..\iem_mp3.dll + +VIS_CPP_PATH = "C:\Programme\Microsoft Visual Studio\Vc98" +PD_INST_PATH = "C:\Programme\pd-0.39-2" +PD_WIN_INCLUDE_PATH = /I. /I$(PD_INST_PATH)\src /I$(VIS_CPP_PATH)\include +PD_WIN_C_FLAGS = /nologo /W3 /WX /DMSW /DNT /DPD /DWIN32 /DWINDOWS /Ox -DPA_LITTLE_ENDIAN +PD_WIN_L_FLAGS = /nologo + +PD_WIN_LIB = /NODEFAULTLIB:libc /NODEFAULTLIB:oldnames /NODEFAULTLIB:kernel /NODEFAULTLIB:uuid \ + $(VIS_CPP_PATH)\lib\libc.lib \ + $(VIS_CPP_PATH)\lib\oldnames.lib \ + $(VIS_CPP_PATH)\lib\kernel32.lib \ + $(VIS_CPP_PATH)\lib\wsock32.lib \ + $(VIS_CPP_PATH)\lib\winmm.lib \ + $(PD_INST_PATH)\bin\pthreadVC.lib \ + $(PD_INST_PATH)\bin\pd.lib + +SRC = mp3play~.c \ + iem_mp3.c + +OBJ = $(SRC:.c=.obj) + +.c.obj: + cl $(PD_WIN_C_FLAGS) $(PD_WIN_INCLUDE_PATH) /c $*.c + +..\iem_mp3.dll: $(OBJ) + link $(PD_WIN_L_FLAGS) /dll /export:iem_mp3_setup \ + /out:..\iem_mp3.dll $(OBJ) $(PD_WIN_LIB) + +clean: + del *.obj diff --git a/iem_mp3/src/mp3play~.c b/iem_mp3/src/mp3play~.c new file mode 100644 index 0000000..73f37ad --- /dev/null +++ b/iem_mp3/src/mp3play~.c @@ -0,0 +1,3859 @@ +/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iem_mp3 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */ + +/* + mp3play~.c - Mpeg Layer III Player for PD + Version:0.1 + 05-18-2000 + written by Thomas Musil (musil_at_iem.at), Norbert Math (math_at_iem.kug.ac.at) + IEM Graz + + debugged for windows 013-03-2003 + + This MPEG Player is based on the mpglib 0.2 by Michael Hipp which comes with mpg123-0.59r + + please see the README file for copyright notices! + + */ + +#include "m_pd.h" +#include "iemlib.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifndef _WIN32 +#include +#include +#endif + + +#define IEM_MPEG1 + +#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) +# define real long double +#else +# define real double +#endif + +#ifdef __GNUC__ +#define INLINE inline +#else +#define INLINE +#endif + +/* AUDIOBUFSIZE = n*64 with n=1,2,3 ... */ +#define AUDIOBUFSIZE 16384 + +#define FALSE 0 +#define TRUE 1 +#define SBLIMIT 32 +#define SSLIMIT 18 +#define MPG_MD_STEREO 0 +#define MPG_MD_JOINT_STEREO 1 +#define MPG_MD_DUAL_CHANNEL 2 +#define MPG_MD_MONO 3 + +#define MAXFRAMESIZE 1792 +/* Pre Shift fo 16 to 8 bit converter table */ +#define AUSHIFT (3) +#define BOOL int +#define MP3_EX -2 +#define MP3_ERR -1 +#define MP3_OK 0 +#define MP3_NEED_MORE 1 + +#define WRITE_SAMPLE(samples,sum,clip) \ + if( (sum) > 32767.0) { *(samples) = 0x7fff; (clip)++; } \ + else if( (sum) < -32768.0) { *(samples) = -0x8000; (clip)++; } \ + else { *(samples) = sum; } + + +#define HDRCMPMASK 0xfffffd00 + + +#define MY_MP3_MALLOC_IN_SIZE 16384 +#define MY_MP3_MALLOC_IN_SIZE2 8192 +#define MY_MP3_MALLOC_OUT_SIZE 65536 +#define MY_MP3_MALLOC_FN 400 +#define MY_MP3_CHSAMP_PER_FRAME 1152 + +struct iemmp3_frame +{ + int stereo; + int jsbound; + int single; + int lsf; + int mpeg25; + int header_change; + int lay; + int error_protection; + int bitrate_index; + int sampling_frequency; + int padding; + int extension; + int mode; + int mode_ext; + int copyright; + int original; + int emphasis; + int framesize; /* computed framesize */ +}; + +struct iemmp3_gr_info_s +{ + int scfsi; + unsigned part2_3_length; + unsigned big_values; + unsigned scalefac_compress; + unsigned block_type; + unsigned mixed_block_flag; + unsigned table_select[3]; + unsigned subblock_gain[3]; + unsigned maxband[3]; + unsigned maxbandl; + unsigned maxb; + unsigned region1start; + unsigned region2start; + unsigned preflag; + unsigned scalefac_scale; + unsigned count1table_select; + real *full_gain[3]; + real *pow2gain; +}; + +struct iemmp3_III_sideinfo +{ + unsigned main_data_begin; + unsigned private_bits; + struct + { + struct iemmp3_gr_info_s gr[2]; + } ch[2]; +}; + +struct iemmp3_buf +{ + unsigned char *pnt; + long size; + long pos; + struct iemmp3_buf *next; + struct iemmp3_buf *prev; +}; + +struct iemmp3Struct +{ + struct iemmp3_buf *head,*tail; + int bsize; + int framesize; + int fsizeold; + struct iemmp3_frame fr; + unsigned char bsspace[2][MAXFRAMESIZE+512]; /* MAXFRAMESIZE */ + real hybrid_block[2][2][SBLIMIT*SSLIMIT]; + int hybrid_blc[2]; + unsigned long header; + int bsnum; + real synth_buffs[2][2][0x110]; + int synth_bo; +}; + +struct iemmp3_bandInfoStruct +{ + short longIdx[23]; + short longDiff[22]; + short shortIdx[14]; + short shortDiff[13]; +}; + +struct iemmp3_newHuff +{ + unsigned int linbits; + short *table; +}; + + +typedef struct _mp3play_tilde +{ + t_object x_obj; + float length_sec; + int samp_per_frame; + int frame_counter; + int time1_bang0_handle; + float time_factor; + int *begframeseek; + int curframeseek; + int maxframeseek; + char *filename; + float offset_sec; + int file_is_open; + int play_state; + int mp3_encode_size; + int mp3_out_index; + int file_size; + int file_block_num; + int file_remain; + int mp_is_init; + int mp3_ch; + int mp3_sr; + int mp3_byterate; + int obj_sr; + int obj_n; + int down; + float scale; + FILE *fh; + char *mp3inbuf; + char *mp3outbuf; + struct iemmp3Struct mp; + t_clock *x_clock; + t_outlet *x_bangout; + t_outlet *x_floatout; + t_canvas *x_canvas; +} t_mp3play_tilde; + + + +static BOOL InitMP3 (struct iemmp3Struct *mp); +static BOOL InitAgainMP3(struct iemmp3Struct *mp); +static void ExitMP3 (struct iemmp3Struct *mp); +static int decodeMP3 (struct iemmp3Struct *mp, char *in, int isize, char *out, int osize, int *done); +static void make_decode_tables (long scaleval); +static void init_layer3 (int down_sample_sblimit); +static int decode_header (struct iemmp3_frame *fr,unsigned long newhead); +static int do_layer3(struct iemmp3_frame *fr,unsigned char *pcm_sample,int *pcm_point,int *err); +static int set_pointer(long backstep); +static int synth_1to1_mono(real *bandPtr,unsigned char *samples,int *pnt); +static int synth_1to1(real *bandPtr,int channel,unsigned char *out,int *pnt); +static struct iemmp3_buf *addbuf(struct iemmp3Struct *mp,char *buf,int size); +static void remove_buf(struct iemmp3Struct *mp); +static int read_head(struct iemmp3Struct *mp); +static int read_buf_byte(struct iemmp3Struct *mp,int *err); +static int III_get_side_info_2(struct iemmp3_III_sideinfo *si,int stereo, int ms_stereo,long sfreq,int single); +#ifdef IEM_MPEG1 +static int III_get_side_info_1(struct iemmp3_III_sideinfo *si,int stereo,int ms_stereo,long sfreq,int single); +static int III_get_scale_factors_1(int *scf,struct iemmp3_gr_info_s *gr_info); +#endif +static int III_get_scale_factors_2(int *scf,struct iemmp3_gr_info_s *gr_info,int i_stereo); +static int III_dequantize_sample(real xr[SBLIMIT][SSLIMIT],int *scf,struct iemmp3_gr_info_s *gr_info,int sfreq,int part2bits); +static void III_i_stereo(real xr_buf[2][SBLIMIT][SSLIMIT],int *scalefac,struct iemmp3_gr_info_s *gr_info,int sfreq,int ms_stereo,int lsf); +static void III_antialias(real xr[SBLIMIT][SSLIMIT],struct iemmp3_gr_info_s *gr_info); +static void III_hybrid(real fsIn[SBLIMIT][SSLIMIT],real tsOut[SSLIMIT][SBLIMIT],int ch,struct iemmp3_gr_info_s *gr_info); +static void dct64(real *a,real *b,real *c); +static void dct64_1(real *out0,real *out1,real *b1,real *b2,real *samples); +static void dct36(real *inbuf,real *o1,real *o2,real *wintab,real *tsbuf); +static void dct12(real *in,real *rawout1,real *rawout2,register real *wi,register real *ts); +static unsigned int getbits(int number_of_bits); +static unsigned int getbits_fast(int number_of_bits); +static unsigned int get1bit(void); + +static void mp3play_tilde_tick(t_mp3play_tilde *x); + + +struct iemmp3Struct *iemmp3_gmp; + +int iemmp3_tabsel_123[2][3][16] = { + { {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,}, + {0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,}, + {0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,} }, + + { {0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,}, + {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,}, + {0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,} } +}; + +long iemmp3_freqs[9] = { 44100, 48000, 32000, +22050, 24000, 16000 , +11025 , 12000 , 8000 }; + +int iemmp3_bitindex; +unsigned char *iemmp3_wordpointer; + +static real iemmp3_ispow[8207]; +static real iemmp3_aa_ca[8],iemmp3_aa_cs[8]; +static real iemmp3_COS1[12][6]; +static real iemmp3_win[4][36]; +static real iemmp3_win1[4][36]; +static real iemmp3_gainpow2[256+118+4]; +static real iemmp3_COS9[9]; +static real iemmp3_COS6_1,iemmp3_COS6_2; +static real iemmp3_tfcos36[9]; +static real iemmp3_tfcos12[3]; + +int iemmp3_longLimit[9][23]; +int iemmp3_shortLimit[9][14]; + +struct iemmp3_bandInfoStruct bandInfo[9] = { + + /* MPEG 1.0 */ + { {0,4,8,12,16,20,24,30,36,44,52,62,74, 90,110,134,162,196,238,288,342,418,576}, + {4,4,4,4,4,4,6,6,8, 8,10,12,16,20,24,28,34,42,50,54, 76,158}, + {0,4*3,8*3,12*3,16*3,22*3,30*3,40*3,52*3,66*3, 84*3,106*3,136*3,192*3}, + {4,4,4,4,6,8,10,12,14,18,22,30,56} } , + + { {0,4,8,12,16,20,24,30,36,42,50,60,72, 88,106,128,156,190,230,276,330,384,576}, + {4,4,4,4,4,4,6,6,6, 8,10,12,16,18,22,28,34,40,46,54, 54,192}, + {0,4*3,8*3,12*3,16*3,22*3,28*3,38*3,50*3,64*3, 80*3,100*3,126*3,192*3}, + {4,4,4,4,6,6,10,12,14,16,20,26,66} } , + + { {0,4,8,12,16,20,24,30,36,44,54,66,82,102,126,156,194,240,296,364,448,550,576} , + {4,4,4,4,4,4,6,6,8,10,12,16,20,24,30,38,46,56,68,84,102, 26} , + {0,4*3,8*3,12*3,16*3,22*3,30*3,42*3,58*3,78*3,104*3,138*3,180*3,192*3} , + {4,4,4,4,6,8,12,16,20,26,34,42,12} } , + + /* MPEG 2.0 */ + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}, + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54 } , + {0,4*3,8*3,12*3,18*3,24*3,32*3,42*3,56*3,74*3,100*3,132*3,174*3,192*3} , + {4,4,4,6,6,8,10,14,18,26,32,42,18 } } , + + { {0,6,12,18,24,30,36,44,54,66,80,96,114,136,162,194,232,278,330,394,464,540,576}, + {6,6,6,6,6,6,8,10,12,14,16,18,22,26,32,38,46,52,64,70,76,36 } , + {0,4*3,8*3,12*3,18*3,26*3,36*3,48*3,62*3,80*3,104*3,136*3,180*3,192*3} , + {4,4,4,6,8,10,12,14,18,24,32,44,12 } } , + + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}, + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54 }, + {0,4*3,8*3,12*3,18*3,26*3,36*3,48*3,62*3,80*3,104*3,134*3,174*3,192*3}, + {4,4,4,6,8,10,12,14,18,24,30,40,18 } } , + /* MPEG 2.5 */ + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576} , + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54}, + {0,12,24,36,54,78,108,144,186,240,312,402,522,576}, + {4,4,4,6,8,10,12,14,18,24,30,40,18} }, + { {0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576} , + {6,6,6,6,6,6,8,10,12,14,16,20,24,28,32,38,46,52,60,68,58,54}, + {0,12,24,36,54,78,108,144,186,240,312,402,522,576}, + {4,4,4,6,8,10,12,14,18,24,30,40,18} }, + { {0,12,24,36,48,60,72,88,108,132,160,192,232,280,336,400,476,566,568,570,572,574,576}, + {12,12,12,12,12,12,16,20,24,28,32,40,48,56,64,76,90,2,2,2,2,2}, + {0, 24, 48, 72,108,156,216,288,372,480,486,492,498,576}, + {8,8,8,12,16,20,24,28,36,2,2,2,26} } , +}; + +static int iemmp3_mapbuf0[9][152]; +static int iemmp3_mapbuf1[9][156]; +static int iemmp3_mapbuf2[9][44]; +static int *iemmp3_map[9][3]; +static int *iemmp3_mapend[9][3]; + +static unsigned int iemmp3_n_slen2[512]; /* MPEG 2.0 slen for 'normal' mode */ +static unsigned int iemmp3_slen2[256]; /* MPEG 2.0 slen for intensity stereo */ + +static real iemmp3_tan1_1[16],iemmp3_tan2_1[16],iemmp3_tan1_2[16],iemmp3_tan2_2[16]; +static real iemmp3_pow1_1[2][16],iemmp3_pow2_1[2][16],iemmp3_pow1_2[2][16],iemmp3_pow2_2[2][16]; + +static int iemmp3_pretab1[22] = {0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,2,2,3,3,3,2,0}; +static int iemmp3_pretab2[22] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; + +real iemmp3_decwin[512+32]; +static real iemmp3_cos64[16],iemmp3_cos32[8],iemmp3_cos16[4],iemmp3_cos8[2],iemmp3_cos4[1]; +real *iemmp3_pnts[] = { iemmp3_cos64,iemmp3_cos32,iemmp3_cos16,iemmp3_cos8,iemmp3_cos4 }; + +static long iemmp3_intwinbase[] = { + 0, -1, -1, -1, -1, -1, -1, -2, -2, -2, + -2, -3, -3, -4, -4, -5, -5, -6, -7, -7, + -8, -9, -10, -11, -13, -14, -16, -17, -19, -21, + -24, -26, -29, -31, -35, -38, -41, -45, -49, -53, + -58, -63, -68, -73, -79, -85, -91, -97, -104, -111, + -117, -125, -132, -139, -147, -154, -161, -169, -176, -183, + -190, -196, -202, -208, -213, -218, -222, -225, -227, -228, + -228, -227, -224, -221, -215, -208, -200, -189, -177, -163, + -146, -127, -106, -83, -57, -29, 2, 36, 72, 111, + 153, 197, 244, 294, 347, 401, 459, 519, 581, 645, + 711, 779, 848, 919, 991, 1064, 1137, 1210, 1283, 1356, + 1428, 1498, 1567, 1634, 1698, 1759, 1817, 1870, 1919, 1962, + 2001, 2032, 2057, 2075, 2085, 2087, 2080, 2063, 2037, 2000, + 1952, 1893, 1822, 1739, 1644, 1535, 1414, 1280, 1131, 970, + 794, 605, 402, 185, -45, -288, -545, -814, -1095, -1388, + -1692, -2006, -2330, -2663, -3004, -3351, -3705, -4063, -4425, -4788, + -5153, -5517, -5879, -6237, -6589, -6935, -7271, -7597, -7910, -8209, + -8491, -8755, -8998, -9219, -9416, -9585, -9727, -9838, -9916, -9959, + -9966, -9935, -9863, -9750, -9592, -9389, -9139, -8840, -8492, -8092, + -7640, -7134, -6574, -5959, -5288, -4561, -3776, -2935, -2037, -1082, + -70, 998, 2122, 3300, 4533, 5818, 7154, 8540, 9975, 11455, + 12980, 14548, 16155, 17799, 19478, 21189, 22929, 24694, 26482, 28289, + 30112, 31947, 33791, 35640, 37489, 39336, 41176, 43006, 44821, 46617, + 48390, 50137, 51853, 53534, 55178, 56778, 58333, 59838, 61289, 62684, + 64019, 65290, 66494, 67629, 68692, 69679, 70590, 71420, 72169, 72835, + 73415, 73908, 74313, 74630, 74856, 74992, 75038 }; + +static short iemmp3_tab0[] = +{ + 0 +}; + +static short iemmp3_tab1[] = +{ + -5, -3, -1, 17, 1, 16, 0 +}; + +static short iemmp3_tab2[] = +{ + -15, -11, -9, -5, -3, -1, 34, 2, 18, -1, 33, 32, 17, -1, 1, + 16, 0 +}; + +static short iemmp3_tab3[] = +{ + -13, -11, -9, -5, -3, -1, 34, 2, 18, -1, 33, 32, 16, 17, -1, + 1, 0 +}; + +static short iemmp3_tab5[] = +{ + -29, -25, -23, -15, -7, -5, -3, -1, 51, 35, 50, 49, -3, -1, 19, + 3, -1, 48, 34, -3, -1, 18, 33, -1, 2, 32, 17, -1, 1, 16, + 0 +}; + +static short iemmp3_tab6[] = +{ + -25, -19, -13, -9, -5, -3, -1, 51, 3, 35, -1, 50, 48, -1, 19, + 49, -3, -1, 34, 2, 18, -3, -1, 33, 32, 1, -1, 17, -1, 16, + 0 +}; + +static short iemmp3_tab7[] = +{ + -69, -65, -57, -39, -29, -17, -11, -7, -3, -1, 85, 69, -1, 84, 83, + -1, 53, 68, -3, -1, 37, 82, 21, -5, -1, 81, -1, 5, 52, -1, + 80, -1, 67, 51, -5, -3, -1, 36, 66, 20, -1, 65, 64, -11, -7, + -3, -1, 4, 35, -1, 50, 3, -1, 19, 49, -3, -1, 48, 34, 18, + -5, -1, 33, -1, 2, 32, 17, -1, 1, 16, 0 +}; + +static short iemmp3_tab8[] = +{ + -65, -63, -59, -45, -31, -19, -13, -7, -5, -3, -1, 85, 84, 69, 83, + -3, -1, 53, 68, 37, -3, -1, 82, 5, 21, -5, -1, 81, -1, 52, + 67, -3, -1, 80, 51, 36, -5, -3, -1, 66, 20, 65, -3, -1, 4, + 64, -1, 35, 50, -9, -7, -3, -1, 19, 49, -1, 3, 48, 34, -1, + 2, 32, -1, 18, 33, 17, -3, -1, 1, 16, 0 +}; + +static short iemmp3_tab9[] = +{ + -63, -53, -41, -29, -19, -11, -5, -3, -1, 85, 69, 53, -1, 83, -1, + 84, 5, -3, -1, 68, 37, -1, 82, 21, -3, -1, 81, 52, -1, 67, + -1, 80, 4, -7, -3, -1, 36, 66, -1, 51, 64, -1, 20, 65, -5, + -3, -1, 35, 50, 19, -1, 49, -1, 3, 48, -5, -3, -1, 34, 2, + 18, -1, 33, 32, -3, -1, 17, 1, -1, 16, 0 +}; + +static short iemmp3_tab10[] = +{ + -125,-121,-111, -83, -55, -35, -21, -13, -7, -3, -1, 119, 103, -1, 118, + 87, -3, -1, 117, 102, 71, -3, -1, 116, 86, -1, 101, 55, -9, -3, + -1, 115, 70, -3, -1, 85, 84, 99, -1, 39, 114, -11, -5, -3, -1, + 100, 7, 112, -1, 98, -1, 69, 53, -5, -1, 6, -1, 83, 68, 23, + -17, -5, -1, 113, -1, 54, 38, -5, -3, -1, 37, 82, 21, -1, 81, + -1, 52, 67, -3, -1, 22, 97, -1, 96, -1, 5, 80, -19, -11, -7, + -3, -1, 36, 66, -1, 51, 4, -1, 20, 65, -3, -1, 64, 35, -1, + 50, 3, -3, -1, 19, 49, -1, 48, 34, -7, -3, -1, 18, 33, -1, + 2, 32, 17, -1, 1, 16, 0 +}; + +static short iemmp3_tab11[] = +{ + -121,-113, -89, -59, -43, -27, -17, -7, -3, -1, 119, 103, -1, 118, 117, + -3, -1, 102, 71, -1, 116, -1, 87, 85, -5, -3, -1, 86, 101, 55, + -1, 115, 70, -9, -7, -3, -1, 69, 84, -1, 53, 83, 39, -1, 114, + -1, 100, 7, -5, -1, 113, -1, 23, 112, -3, -1, 54, 99, -1, 96, + -1, 68, 37, -13, -7, -5, -3, -1, 82, 5, 21, 98, -3, -1, 38, + 6, 22, -5, -1, 97, -1, 81, 52, -5, -1, 80, -1, 67, 51, -1, + 36, 66, -15, -11, -7, -3, -1, 20, 65, -1, 4, 64, -1, 35, 50, + -1, 19, 49, -5, -3, -1, 3, 48, 34, 33, -5, -1, 18, -1, 2, + 32, 17, -3, -1, 1, 16, 0 +}; + +static short iemmp3_tab12[] = +{ + -115, -99, -73, -45, -27, -17, -9, -5, -3, -1, 119, 103, 118, -1, 87, + 117, -3, -1, 102, 71, -1, 116, 101, -3, -1, 86, 55, -3, -1, 115, + 85, 39, -7, -3, -1, 114, 70, -1, 100, 23, -5, -1, 113, -1, 7, + 112, -1, 54, 99, -13, -9, -3, -1, 69, 84, -1, 68, -1, 6, 5, + -1, 38, 98, -5, -1, 97, -1, 22, 96, -3, -1, 53, 83, -1, 37, + 82, -17, -7, -3, -1, 21, 81, -1, 52, 67, -5, -3, -1, 80, 4, + 36, -1, 66, 20, -3, -1, 51, 65, -1, 35, 50, -11, -7, -5, -3, + -1, 64, 3, 48, 19, -1, 49, 34, -1, 18, 33, -7, -5, -3, -1, + 2, 32, 0, 17, -1, 1, 16 +}; + +static short iemmp3_tab13[] = +{ + -509,-503,-475,-405,-333,-265,-205,-153,-115, -83, -53, -35, -21, -13, -9, + -7, -5, -3, -1, 254, 252, 253, 237, 255, -1, 239, 223, -3, -1, 238, + 207, -1, 222, 191, -9, -3, -1, 251, 206, -1, 220, -1, 175, 233, -1, + 236, 221, -9, -5, -3, -1, 250, 205, 190, -1, 235, 159, -3, -1, 249, + 234, -1, 189, 219, -17, -9, -3, -1, 143, 248, -1, 204, -1, 174, 158, + -5, -1, 142, -1, 127, 126, 247, -5, -1, 218, -1, 173, 188, -3, -1, + 203, 246, 111, -15, -7, -3, -1, 232, 95, -1, 157, 217, -3, -1, 245, + 231, -1, 172, 187, -9, -3, -1, 79, 244, -3, -1, 202, 230, 243, -1, + 63, -1, 141, 216, -21, -9, -3, -1, 47, 242, -3, -1, 110, 156, 15, + -5, -3, -1, 201, 94, 171, -3, -1, 125, 215, 78, -11, -5, -3, -1, + 200, 214, 62, -1, 185, -1, 155, 170, -1, 31, 241, -23, -13, -5, -1, + 240, -1, 186, 229, -3, -1, 228, 140, -1, 109, 227, -5, -1, 226, -1, + 46, 14, -1, 30, 225, -15, -7, -3, -1, 224, 93, -1, 213, 124, -3, + -1, 199, 77, -1, 139, 184, -7, -3, -1, 212, 154, -1, 169, 108, -1, + 198, 61, -37, -21, -9, -5, -3, -1, 211, 123, 45, -1, 210, 29, -5, + -1, 183, -1, 92, 197, -3, -1, 153, 122, 195, -7, -5, -3, -1, 167, + 151, 75, 209, -3, -1, 13, 208, -1, 138, 168, -11, -7, -3, -1, 76, + 196, -1, 107, 182, -1, 60, 44, -3, -1, 194, 91, -3, -1, 181, 137, + 28, -43, -23, -11, -5, -1, 193, -1, 152, 12, -1, 192, -1, 180, 106, + -5, -3, -1, 166, 121, 59, -1, 179, -1, 136, 90, -11, -5, -1, 43, + -1, 165, 105, -1, 164, -1, 120, 135, -5, -1, 148, -1, 119, 118, 178, + -11, -3, -1, 27, 177, -3, -1, 11, 176, -1, 150, 74, -7, -3, -1, + 58, 163, -1, 89, 149, -1, 42, 162, -47, -23, -9, -3, -1, 26, 161, + -3, -1, 10, 104, 160, -5, -3, -1, 134, 73, 147, -3, -1, 57, 88, + -1, 133, 103, -9, -3, -1, 41, 146, -3, -1, 87, 117, 56, -5, -1, + 131, -1, 102, 71, -3, -1, 116, 86, -1, 101, 115, -11, -3, -1, 25, + 145, -3, -1, 9, 144, -1, 72, 132, -7, -5, -1, 114, -1, 70, 100, + 40, -1, 130, 24, -41, -27, -11, -5, -3, -1, 55, 39, 23, -1, 113, + -1, 85, 7, -7, -3, -1, 112, 54, -1, 99, 69, -3, -1, 84, 38, + -1, 98, 53, -5, -1, 129, -1, 8, 128, -3, -1, 22, 97, -1, 6, + 96, -13, -9, -5, -3, -1, 83, 68, 37, -1, 82, 5, -1, 21, 81, + -7, -3, -1, 52, 67, -1, 80, 36, -3, -1, 66, 51, 20, -19, -11, + -5, -1, 65, -1, 4, 64, -3, -1, 35, 50, 19, -3, -1, 49, 3, + -1, 48, 34, -3, -1, 18, 33, -1, 2, 32, -3, -1, 17, 1, 16, + 0 +}; + +static short iemmp3_tab15[] = +{ + -495,-445,-355,-263,-183,-115, -77, -43, -27, -13, -7, -3, -1, 255, 239, + -1, 254, 223, -1, 238, -1, 253, 207, -7, -3, -1, 252, 222, -1, 237, + 191, -1, 251, -1, 206, 236, -7, -3, -1, 221, 175, -1, 250, 190, -3, + -1, 235, 205, -1, 220, 159, -15, -7, -3, -1, 249, 234, -1, 189, 219, + -3, -1, 143, 248, -1, 204, 158, -7, -3, -1, 233, 127, -1, 247, 173, + -3, -1, 218, 188, -1, 111, -1, 174, 15, -19, -11, -3, -1, 203, 246, + -3, -1, 142, 232, -1, 95, 157, -3, -1, 245, 126, -1, 231, 172, -9, + -3, -1, 202, 187, -3, -1, 217, 141, 79, -3, -1, 244, 63, -1, 243, + 216, -33, -17, -9, -3, -1, 230, 47, -1, 242, -1, 110, 240, -3, -1, + 31, 241, -1, 156, 201, -7, -3, -1, 94, 171, -1, 186, 229, -3, -1, + 125, 215, -1, 78, 228, -15, -7, -3, -1, 140, 200, -1, 62, 109, -3, + -1, 214, 227, -1, 155, 185, -7, -3, -1, 46, 170, -1, 226, 30, -5, + -1, 225, -1, 14, 224, -1, 93, 213, -45, -25, -13, -7, -3, -1, 124, + 199, -1, 77, 139, -1, 212, -1, 184, 154, -7, -3, -1, 169, 108, -1, + 198, 61, -1, 211, 210, -9, -5, -3, -1, 45, 13, 29, -1, 123, 183, + -5, -1, 209, -1, 92, 208, -1, 197, 138, -17, -7, -3, -1, 168, 76, + -1, 196, 107, -5, -1, 182, -1, 153, 12, -1, 60, 195, -9, -3, -1, + 122, 167, -1, 166, -1, 192, 11, -1, 194, -1, 44, 91, -55, -29, -15, + -7, -3, -1, 181, 28, -1, 137, 152, -3, -1, 193, 75, -1, 180, 106, + -5, -3, -1, 59, 121, 179, -3, -1, 151, 136, -1, 43, 90, -11, -5, + -1, 178, -1, 165, 27, -1, 177, -1, 176, 105, -7, -3, -1, 150, 74, + -1, 164, 120, -3, -1, 135, 58, 163, -17, -7, -3, -1, 89, 149, -1, + 42, 162, -3, -1, 26, 161, -3, -1, 10, 160, 104, -7, -3, -1, 134, + 73, -1, 148, 57, -5, -1, 147, -1, 119, 9, -1, 88, 133, -53, -29, + -13, -7, -3, -1, 41, 103, -1, 118, 146, -1, 145, -1, 25, 144, -7, + -3, -1, 72, 132, -1, 87, 117, -3, -1, 56, 131, -1, 102, 71, -7, + -3, -1, 40, 130, -1, 24, 129, -7, -3, -1, 116, 8, -1, 128, 86, + -3, -1, 101, 55, -1, 115, 70, -17, -7, -3, -1, 39, 114, -1, 100, + 23, -3, -1, 85, 113, -3, -1, 7, 112, 54, -7, -3, -1, 99, 69, + -1, 84, 38, -3, -1, 98, 22, -3, -1, 6, 96, 53, -33, -19, -9, + -5, -1, 97, -1, 83, 68, -1, 37, 82, -3, -1, 21, 81, -3, -1, + 5, 80, 52, -7, -3, -1, 67, 36, -1, 66, 51, -1, 65, -1, 20, + 4, -9, -3, -1, 35, 50, -3, -1, 64, 3, 19, -3, -1, 49, 48, + 34, -9, -7, -3, -1, 18, 33, -1, 2, 32, 17, -3, -1, 1, 16, + 0 +}; + +static short iemmp3_tab16[] = +{ + -509,-503,-461,-323,-103, -37, -27, -15, -7, -3, -1, 239, 254, -1, 223, + 253, -3, -1, 207, 252, -1, 191, 251, -5, -1, 175, -1, 250, 159, -3, + -1, 249, 248, 143, -7, -3, -1, 127, 247, -1, 111, 246, 255, -9, -5, + -3, -1, 95, 245, 79, -1, 244, 243, -53, -1, 240, -1, 63, -29, -19, + -13, -7, -5, -1, 206, -1, 236, 221, 222, -1, 233, -1, 234, 217, -1, + 238, -1, 237, 235, -3, -1, 190, 205, -3, -1, 220, 219, 174, -11, -5, + -1, 204, -1, 173, 218, -3, -1, 126, 172, 202, -5, -3, -1, 201, 125, + 94, 189, 242, -93, -5, -3, -1, 47, 15, 31, -1, 241, -49, -25, -13, + -5, -1, 158, -1, 188, 203, -3, -1, 142, 232, -1, 157, 231, -7, -3, + -1, 187, 141, -1, 216, 110, -1, 230, 156, -13, -7, -3, -1, 171, 186, + -1, 229, 215, -1, 78, -1, 228, 140, -3, -1, 200, 62, -1, 109, -1, + 214, 155, -19, -11, -5, -3, -1, 185, 170, 225, -1, 212, -1, 184, 169, + -5, -1, 123, -1, 183, 208, 227, -7, -3, -1, 14, 224, -1, 93, 213, + -3, -1, 124, 199, -1, 77, 139, -75, -45, -27, -13, -7, -3, -1, 154, + 108, -1, 198, 61, -3, -1, 92, 197, 13, -7, -3, -1, 138, 168, -1, + 153, 76, -3, -1, 182, 122, 60, -11, -5, -3, -1, 91, 137, 28, -1, + 192, -1, 152, 121, -1, 226, -1, 46, 30, -15, -7, -3, -1, 211, 45, + -1, 210, 209, -5, -1, 59, -1, 151, 136, 29, -7, -3, -1, 196, 107, + -1, 195, 167, -1, 44, -1, 194, 181, -23, -13, -7, -3, -1, 193, 12, + -1, 75, 180, -3, -1, 106, 166, 179, -5, -3, -1, 90, 165, 43, -1, + 178, 27, -13, -5, -1, 177, -1, 11, 176, -3, -1, 105, 150, -1, 74, + 164, -5, -3, -1, 120, 135, 163, -3, -1, 58, 89, 42, -97, -57, -33, + -19, -11, -5, -3, -1, 149, 104, 161, -3, -1, 134, 119, 148, -5, -3, + -1, 73, 87, 103, 162, -5, -1, 26, -1, 10, 160, -3, -1, 57, 147, + -1, 88, 133, -9, -3, -1, 41, 146, -3, -1, 118, 9, 25, -5, -1, + 145, -1, 144, 72, -3, -1, 132, 117, -1, 56, 131, -21, -11, -5, -3, + -1, 102, 40, 130, -3, -1, 71, 116, 24, -3, -1, 129, 128, -3, -1, + 8, 86, 55, -9, -5, -1, 115, -1, 101, 70, -1, 39, 114, -5, -3, + -1, 100, 85, 7, 23, -23, -13, -5, -1, 113, -1, 112, 54, -3, -1, + 99, 69, -1, 84, 38, -3, -1, 98, 22, -1, 97, -1, 6, 96, -9, + -5, -1, 83, -1, 53, 68, -1, 37, 82, -1, 81, -1, 21, 5, -33, + -23, -13, -7, -3, -1, 52, 67, -1, 80, 36, -3, -1, 66, 51, 20, + -5, -1, 65, -1, 4, 64, -1, 35, 50, -3, -1, 19, 49, -3, -1, + 3, 48, 34, -3, -1, 18, 33, -1, 2, 32, -3, -1, 17, 1, 16, + 0 +}; + +static short iemmp3_tab24[] = +{ + -451,-117, -43, -25, -15, -7, -3, -1, 239, 254, -1, 223, 253, -3, -1, + 207, 252, -1, 191, 251, -5, -1, 250, -1, 175, 159, -1, 249, 248, -9, + -5, -3, -1, 143, 127, 247, -1, 111, 246, -3, -1, 95, 245, -1, 79, + 244, -71, -7, -3, -1, 63, 243, -1, 47, 242, -5, -1, 241, -1, 31, + 240, -25, -9, -1, 15, -3, -1, 238, 222, -1, 237, 206, -7, -3, -1, + 236, 221, -1, 190, 235, -3, -1, 205, 220, -1, 174, 234, -15, -7, -3, + -1, 189, 219, -1, 204, 158, -3, -1, 233, 173, -1, 218, 188, -7, -3, + -1, 203, 142, -1, 232, 157, -3, -1, 217, 126, -1, 231, 172, 255,-235, + -143, -77, -45, -25, -15, -7, -3, -1, 202, 187, -1, 141, 216, -5, -3, + -1, 14, 224, 13, 230, -5, -3, -1, 110, 156, 201, -1, 94, 186, -9, + -5, -1, 229, -1, 171, 125, -1, 215, 228, -3, -1, 140, 200, -3, -1, + 78, 46, 62, -15, -7, -3, -1, 109, 214, -1, 227, 155, -3, -1, 185, + 170, -1, 226, 30, -7, -3, -1, 225, 93, -1, 213, 124, -3, -1, 199, + 77, -1, 139, 184, -31, -15, -7, -3, -1, 212, 154, -1, 169, 108, -3, + -1, 198, 61, -1, 211, 45, -7, -3, -1, 210, 29, -1, 123, 183, -3, + -1, 209, 92, -1, 197, 138, -17, -7, -3, -1, 168, 153, -1, 76, 196, + -3, -1, 107, 182, -3, -1, 208, 12, 60, -7, -3, -1, 195, 122, -1, + 167, 44, -3, -1, 194, 91, -1, 181, 28, -57, -35, -19, -7, -3, -1, + 137, 152, -1, 193, 75, -5, -3, -1, 192, 11, 59, -3, -1, 176, 10, + 26, -5, -1, 180, -1, 106, 166, -3, -1, 121, 151, -3, -1, 160, 9, + 144, -9, -3, -1, 179, 136, -3, -1, 43, 90, 178, -7, -3, -1, 165, + 27, -1, 177, 105, -1, 150, 164, -17, -9, -5, -3, -1, 74, 120, 135, + -1, 58, 163, -3, -1, 89, 149, -1, 42, 162, -7, -3, -1, 161, 104, + -1, 134, 119, -3, -1, 73, 148, -1, 57, 147, -63, -31, -15, -7, -3, + -1, 88, 133, -1, 41, 103, -3, -1, 118, 146, -1, 25, 145, -7, -3, + -1, 72, 132, -1, 87, 117, -3, -1, 56, 131, -1, 102, 40, -17, -7, + -3, -1, 130, 24, -1, 71, 116, -5, -1, 129, -1, 8, 128, -1, 86, + 101, -7, -5, -1, 23, -1, 7, 112, 115, -3, -1, 55, 39, 114, -15, + -7, -3, -1, 70, 100, -1, 85, 113, -3, -1, 54, 99, -1, 69, 84, + -7, -3, -1, 38, 98, -1, 22, 97, -5, -3, -1, 6, 96, 53, -1, + 83, 68, -51, -37, -23, -15, -9, -3, -1, 37, 82, -1, 21, -1, 5, + 80, -1, 81, -1, 52, 67, -3, -1, 36, 66, -1, 51, 20, -9, -5, + -1, 65, -1, 4, 64, -1, 35, 50, -1, 19, 49, -7, -5, -3, -1, + 3, 48, 34, 18, -1, 33, -1, 2, 32, -3, -1, 17, 1, -1, 16, + 0 +}; + +static short iemmp3_tab_c0[] = +{ + -29, -21, -13, -7, -3, -1, 11, 15, -1, 13, 14, -3, -1, 7, 5, + 9, -3, -1, 6, 3, -1, 10, 12, -3, -1, 2, 1, -1, 4, 8, + 0 +}; + +static short iemmp3_tab_c1[] = +{ + -15, -7, -3, -1, 15, 14, -1, 13, 12, -3, -1, 11, 10, -1, 9, + 8, -7, -3, -1, 7, 6, -1, 5, 4, -3, -1, 3, 2, -1, 1, + 0 +}; + + + +static struct iemmp3_newHuff iemmp3_ht[] = +{ + { /* 0 */ 0 , iemmp3_tab0 } , + { /* 2 */ 0 , iemmp3_tab1 } , + { /* 3 */ 0 , iemmp3_tab2 } , + { /* 3 */ 0 , iemmp3_tab3 } , + { /* 0 */ 0 , iemmp3_tab0 } , + { /* 4 */ 0 , iemmp3_tab5 } , + { /* 4 */ 0 , iemmp3_tab6 } , + { /* 6 */ 0 , iemmp3_tab7 } , + { /* 6 */ 0 , iemmp3_tab8 } , + { /* 6 */ 0 , iemmp3_tab9 } , + { /* 8 */ 0 , iemmp3_tab10 } , + { /* 8 */ 0 , iemmp3_tab11 } , + { /* 8 */ 0 , iemmp3_tab12 } , + { /* 16 */ 0 , iemmp3_tab13 } , + { /* 0 */ 0 , iemmp3_tab0 } , + { /* 16 */ 0 , iemmp3_tab15 } , + + { /* 16 */ 1 , iemmp3_tab16 } , + { /* 16 */ 2 , iemmp3_tab16 } , + { /* 16 */ 3 , iemmp3_tab16 } , + { /* 16 */ 4 , iemmp3_tab16 } , + { /* 16 */ 6 , iemmp3_tab16 } , + { /* 16 */ 8 , iemmp3_tab16 } , + { /* 16 */ 10, iemmp3_tab16 } , + { /* 16 */ 13, iemmp3_tab16 } , + { /* 16 */ 4 , iemmp3_tab24 } , + { /* 16 */ 5 , iemmp3_tab24 } , + { /* 16 */ 6 , iemmp3_tab24 } , + { /* 16 */ 7 , iemmp3_tab24 } , + { /* 16 */ 8 , iemmp3_tab24 } , + { /* 16 */ 9 , iemmp3_tab24 } , + { /* 16 */ 11, iemmp3_tab24 } , + { /* 16 */ 13, iemmp3_tab24 } +}; + +static struct iemmp3_newHuff iemmp3_htc[] = +{ + { /* 1 , 1 , */ 0 , iemmp3_tab_c0 } , + { /* 1 , 1 , */ 0 , iemmp3_tab_c1 } +}; + + +static t_class *mp3play_tilde_class; + + + +static BOOL InitMP3(struct iemmp3Struct *mp) +{ + memset(mp,0,sizeof(struct iemmp3Struct)); + + mp->framesize = 0; + mp->fsizeold = -1; + mp->bsize = 0; + mp->head = mp->tail = NULL; + mp->fr.single = -1; + mp->bsnum = 0; + mp->synth_bo = 1; + + make_decode_tables(32767); + init_layer3(SBLIMIT); + + return !0; +} + +static BOOL InitAgainMP3(struct iemmp3Struct *mp) +{ + memset(mp,0,sizeof(struct iemmp3Struct)); + + mp->framesize = 0; + mp->fsizeold = -1; + mp->bsize = 0; + mp->head = mp->tail = NULL; + mp->fr.single = -1; + mp->bsnum = 0; + mp->synth_bo = 1; + + return !0; +} + +static void ExitMP3(struct iemmp3Struct *mp) +{ + struct iemmp3_buf *b,*bn; + + b = mp->tail; + while(b) + { + free(b->pnt); + bn = b->next; + free(b); + b = bn; + } +} + +static int decodeMP3(struct iemmp3Struct *mp, char *in, int isize, char *out, int osize, int *done) +{ + int len,err=1; + + iemmp3_gmp = mp; + + if(osize < 4608) + { + post("To less out space\n"); + return MP3_ERR; + } + + if(in) + { + if(addbuf(mp,in,isize) == NULL) + { + return MP3_ERR; + } + } + + /* First decode header */ + if(mp->framesize == 0) + { + if(mp->bsize < 4) + { + return MP3_NEED_MORE; + } + if(!read_head(mp)) + return MP3_EX; + if(decode_header(&mp->fr,mp->header) == MP3_EX) + return MP3_EX; + mp->framesize = mp->fr.framesize; + } + + if(mp->fr.framesize > mp->bsize) + return MP3_NEED_MORE; + + iemmp3_wordpointer = mp->bsspace[mp->bsnum] + 512; + mp->bsnum = (mp->bsnum + 1) & 0x1; + iemmp3_bitindex = 0; + + len = 0; + while(len < mp->framesize) + { + int nlen; + int blen = mp->tail->size - mp->tail->pos; + if( (mp->framesize - len) <= blen) + { + nlen = mp->framesize-len; + } + else + { + nlen = blen; + } + memcpy(iemmp3_wordpointer+len,mp->tail->pnt+mp->tail->pos,nlen); + len += nlen; + mp->tail->pos += nlen; + mp->bsize -= nlen; + if(mp->tail->pos == mp->tail->size) + { + remove_buf(mp); + } + } + + *done = 0; + if(mp->fr.error_protection) + getbits(16); + do_layer3(&mp->fr,(unsigned char *) out,done,&err); + if(!err) + return MP3_EX; + + mp->fsizeold = mp->framesize; + mp->framesize = 0; + + return MP3_OK; +} + +static void make_decode_tables(long scaleval) +{ + int i,j,k,kr,divv; + real *table,*costab; + + for(i=0;i<5;i++) + { + kr=0x10>>i; divv=0x40>>i; + costab = iemmp3_pnts[i]; + for(k=0;k 0) + { + if( i & 1 ) + p1 = pow(base,(i+1.0)*0.5); + else + p2 = pow(base,i*0.5); + } + iemmp3_pow1_1[j][i] = p1; + iemmp3_pow2_1[j][i] = p2; + iemmp3_pow1_2[j][i] = M_SQRT2 * p1; + iemmp3_pow2_2[j][i] = M_SQRT2 * p2; + } + } + + for(j=0;j<9;j++) + { + struct iemmp3_bandInfoStruct *bi = &bandInfo[j]; + int *mp; + int cb,lwin; + short *bdf; + + mp = iemmp3_map[j][0] = iemmp3_mapbuf0[j]; + bdf = bi->longDiff; + for(i=0,cb = 0; cb < 8 ; cb++,i+=*bdf++) + { + *mp++ = (*bdf) >> 1; + *mp++ = i; + *mp++ = 3; + *mp++ = cb; + } + bdf = bi->shortDiff+3; + for(cb=3;cb<13;cb++) + { + int l1 = (*bdf++) >> 1; + for(lwin=0;lwin<3;lwin++) + { + *mp++ = l1; + *mp++ = i + lwin; + *mp++ = lwin; + *mp++ = cb; + } + i += 6*l1; + } + iemmp3_mapend[j][0] = mp; + + mp = iemmp3_map[j][1] = iemmp3_mapbuf1[j]; + bdf = bi->shortDiff+0; + for(i=0,cb=0;cb<13;cb++) + { + int l1 = (*bdf++) >> 1; + for(lwin=0;lwin<3;lwin++) + { + *mp++ = l1; + *mp++ = i + lwin; + *mp++ = lwin; + *mp++ = cb; + } + i += 6*l1; + } + iemmp3_mapend[j][1] = mp; + + mp = iemmp3_map[j][2] = iemmp3_mapbuf2[j]; + bdf = bi->longDiff; + for(cb = 0; cb < 22 ; cb++) + { + *mp++ = (*bdf++) >> 1; + *mp++ = cb; + } + iemmp3_mapend[j][2] = mp; + } + + for(j=0;j<9;j++) + { + for(i=0;i<23;i++) + { + iemmp3_longLimit[j][i] = (bandInfo[j].longIdx[i] - 1 + 8) / 18 + 1; + if(iemmp3_longLimit[j][i] > (down_sample_sblimit) ) + iemmp3_longLimit[j][i] = down_sample_sblimit; + } + for(i=0;i<14;i++) + { + iemmp3_shortLimit[j][i] = (bandInfo[j].shortIdx[i] - 1) / 18 + 1; + if(iemmp3_shortLimit[j][i] > (down_sample_sblimit) ) + iemmp3_shortLimit[j][i] = down_sample_sblimit; + } + } + + for(i=0;i<5;i++) + { + for(j=0;j<6;j++) + { + for(k=0;k<6;k++) + { + int n = k + j * 6 + i * 36; + iemmp3_slen2[n] = i|(j<<3)|(k<<6)|(3<<12); + } + } + } + for(i=0;i<4;i++) + { + for(j=0;j<4;j++) + { + for(k=0;k<4;k++) + { + int n = k + j * 4 + i * 16; + iemmp3_slen2[n+180] = i|(j<<3)|(k<<6)|(4<<12); + } + } + } + for(i=0;i<4;i++) + { + for(j=0;j<3;j++) + { + int n = j + i * 3; + iemmp3_slen2[n+244] = i|(j<<3) | (5<<12); + iemmp3_n_slen2[n+500] = i|(j<<3) | (2<<12) | (1<<15); + } + } + + for(i=0;i<5;i++) + { + for(j=0;j<5;j++) + { + for(k=0;k<4;k++) + { + for(l=0;l<4;l++) + { + int n = l + k * 4 + j * 16 + i * 80; + iemmp3_n_slen2[n] = i|(j<<3)|(k<<6)|(l<<9)|(0<<12); + } + } + } + } + for(i=0;i<5;i++) + { + for(j=0;j<5;j++) + { + for(k=0;k<4;k++) + { + int n = k + j * 4 + i * 20; + iemmp3_n_slen2[n+400] = i|(j<<3)|(k<<6)|(1<<12); + } + } + } +} + +static void remove_buf(struct iemmp3Struct *mp) +{ + struct iemmp3_buf *buf = mp->tail; + + mp->tail = buf->next; + if(mp->tail) + mp->tail->prev = NULL; + else + { + mp->tail = mp->head = NULL; + } + free(buf->pnt); + free(buf); +} + +static struct iemmp3_buf *addbuf(struct iemmp3Struct *mp,char *buf,int size) +{ + struct iemmp3_buf *nbuf; + + nbuf = malloc( sizeof(struct iemmp3_buf) ); + if(!nbuf) + { + post("Out of memory!\n"); + return NULL; + } + nbuf->pnt = malloc(size); + if(!nbuf->pnt) + { + free(nbuf); + return NULL; + } + nbuf->size = size; + memcpy(nbuf->pnt,buf,size); + nbuf->next = NULL; + nbuf->prev = mp->head; + nbuf->pos = 0; + if(!mp->tail) + { + mp->tail = nbuf; + } + else + { + mp->head->next = nbuf; + } + mp->head = nbuf; + mp->bsize += size; + return nbuf; +} + +static int read_buf_byte(struct iemmp3Struct *mp,int *err) +{ + unsigned int b; + int pos; + + pos = mp->tail->pos; + while(pos >= mp->tail->size) + { + remove_buf(mp); + pos = mp->tail->pos; + if(!mp->tail) + { + post("Fatal error!\n"); + *err = 0; + return(0); + } + } + b = mp->tail->pnt[pos]; + mp->bsize--; + mp->tail->pos++; + return(b); +} + +static int read_head(struct iemmp3Struct *mp) +{ + unsigned long head; + int err=1; + + head = read_buf_byte(mp,&err); + head <<= 8; + head |= read_buf_byte(mp,&err); + head <<= 8; + head |= read_buf_byte(mp,&err); + head <<= 8; + head |= read_buf_byte(mp,&err); + mp->header = head; + return(err); +} + +static int decode_header(struct iemmp3_frame *fr,unsigned long newhead) +{ + if( newhead & (1<<20) ) + { + fr->lsf = (newhead & (1<<19)) ? 0x0 : 0x1; + fr->mpeg25 = 0; + } + else + { + fr->lsf = 1; + fr->mpeg25 = 1; + } + fr->lay = 4-((newhead>>17)&3); + if( ((newhead>>10)&0x3) == 0x3) + { + post("Stream error"); + return(MP3_EX); + } + if(fr->mpeg25) + { + fr->sampling_frequency = 6 + ((newhead>>10)&0x3); + } + else + fr->sampling_frequency = ((newhead>>10)&0x3) + (fr->lsf*3); + fr->error_protection = ((newhead>>16)&0x1)^0x1; + if(fr->mpeg25) /* allow Bitrate change for 2.5 ... */ + fr->bitrate_index = ((newhead>>12)&0xf); + fr->bitrate_index = ((newhead>>12)&0xf); + fr->padding = ((newhead>>9)&0x1); + fr->extension = ((newhead>>8)&0x1); + fr->mode = ((newhead>>6)&0x3); + fr->mode_ext = ((newhead>>4)&0x3); + fr->copyright = ((newhead>>3)&0x1); + fr->original = ((newhead>>2)&0x1); + fr->emphasis = newhead & 0x3; + fr->stereo = (fr->mode == MPG_MD_MONO) ? 1 : 2; + if(!fr->bitrate_index) + { + post("Free format not supported.\n"); + return(0); + } + switch(fr->lay) + { + case 1: + post("Layer I not supported!\n"); + break; + case 2: + post("Layer II not supported!\n"); + break; + case 3: + fr->framesize = (long) iemmp3_tabsel_123[fr->lsf][2][fr->bitrate_index] * 144000; + fr->framesize /= iemmp3_freqs[fr->sampling_frequency]<<(fr->lsf); + fr->framesize = fr->framesize + fr->padding - 4; + //post("Framesize: %d",fr->framesize); + break; + default: + post("Sorry, unknown layer type.\n"); + return (0); + } + return(1); +} + +static unsigned int getbits(int number_of_bits) +{ + unsigned long rval; + + if(!number_of_bits) + return 0; + { + rval = iemmp3_wordpointer[0]; + rval <<= 8; + rval |= iemmp3_wordpointer[1]; + rval <<= 8; + rval |= iemmp3_wordpointer[2]; + rval <<= iemmp3_bitindex; + rval &= 0xffffff; + iemmp3_bitindex += number_of_bits; + rval >>= (24-number_of_bits); + iemmp3_wordpointer += (iemmp3_bitindex>>3); + iemmp3_bitindex &= 7; + } + return rval; +} + +static unsigned int getbits_fast(int number_of_bits) +{ + unsigned long rval; + + { + rval = iemmp3_wordpointer[0]; + rval <<= 8; + rval |= iemmp3_wordpointer[1]; + rval <<= iemmp3_bitindex; + rval &= 0xffff; + iemmp3_bitindex += number_of_bits; + rval >>= (16-number_of_bits); + iemmp3_wordpointer += (iemmp3_bitindex>>3); + iemmp3_bitindex &= 7; + } + return rval; +} + +static unsigned int get1bit(void) +{ + unsigned char rval; + rval = *iemmp3_wordpointer << iemmp3_bitindex; + + iemmp3_bitindex++; + iemmp3_wordpointer += (iemmp3_bitindex>>3); + iemmp3_bitindex &= 7; + + return rval>>7; +} + +static int do_layer3(struct iemmp3_frame *fr,unsigned char *pcm_sample,int *pcm_point,int *err) +{ + int gr, ch, ss,clip=0; + int scalefacs[39]; /* max 39 for short[13][3] mode, mixed: 38, long: 22 */ + struct iemmp3_III_sideinfo sideinfo; + int stereo = fr->stereo; + int single = fr->single; + int ms_stereo,i_stereo; + int sfreq = fr->sampling_frequency; + int stereo1,granules; + + if(stereo == 1) + { /* stream is mono */ + stereo1 = 1; + single = 0; + } + else if(single >= 0) /* stream is stereo, but force to mono */ + stereo1 = 1; + else + stereo1 = 2; + + if(fr->mode == MPG_MD_JOINT_STEREO) + { + ms_stereo = fr->mode_ext & 0x2; + i_stereo = fr->mode_ext & 0x1; + } + else + ms_stereo = i_stereo = 0; + + if(fr->lsf) + { + granules = 1; + if(!III_get_side_info_2(&sideinfo,stereo,ms_stereo,sfreq,single)) + { + *err = 0; + return 0; + } + } + else + { + granules = 2; +#ifdef IEM_MPEG1 + if(!III_get_side_info_1(&sideinfo,stereo,ms_stereo,sfreq,single)) + { + *err = 0; + return 0; + } +#else + post("Not supported\n"); +#endif + } + + if(set_pointer(sideinfo.main_data_begin) == MP3_ERR) + return 0; + + for (gr=0;grlsf) + part2bits = III_get_scale_factors_2(scalefacs,gr_info,0); + else + { +#ifdef IEM_MPEG1 + part2bits = III_get_scale_factors_1(scalefacs,gr_info); +#else + post("Not supported\n"); +#endif + } + if(III_dequantize_sample(hybridIn[0], scalefacs,gr_info,sfreq,part2bits)) + return clip; + } + if(stereo == 2) + { + struct iemmp3_gr_info_s *gr_info = &(sideinfo.ch[1].gr[gr]); + long part2bits; + if(fr->lsf) + part2bits = III_get_scale_factors_2(scalefacs,gr_info,i_stereo); + else + { +#ifdef IEM_MPEG1 + part2bits = III_get_scale_factors_1(scalefacs,gr_info); +#else + post("Not supported\n"); +#endif + } + + if(III_dequantize_sample(hybridIn[1],scalefacs,gr_info,sfreq,part2bits)) + return clip; + + if(ms_stereo) + { + int i; + for(i=0;ilsf); + + if(ms_stereo || i_stereo || (single == 3) ) + { + if(gr_info->maxb > sideinfo.ch[0].gr[gr].maxb) + sideinfo.ch[0].gr[gr].maxb = gr_info->maxb; + else + gr_info->maxb = sideinfo.ch[0].gr[gr].maxb; + } + + switch(single) + { + case 3: + { + register unsigned int i; + register real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1]; + for(i=0;imaxb;i++,in0++) + *in0 = (*in0 + *in1++); /* *0.5 done by pow-scale */ + } + break; + case 1: + { + register unsigned int i; + register real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1]; + for(i=0;imaxb;i++) + *in0++ = *in1++; + } + break; + } + } + + for(ch=0;ch= 0) + { + clip += synth_1to1_mono(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); + } + } + } + + return clip; +} + +static int III_get_side_info_2(struct iemmp3_III_sideinfo *si,int stereo, + int ms_stereo,long sfreq,int single) +{ + int ch; + int powdiff = (single == 3) ? 4 : 0; + + si->main_data_begin = getbits(8); + if (stereo == 1) + si->private_bits = get1bit(); + else + si->private_bits = getbits_fast(2); + + for (ch=0; chch[ch].gr[0]); + + gr_info->part2_3_length = getbits(12); + gr_info->big_values = getbits_fast(9); + if(gr_info->big_values > 288) + { + post("big_values too large!\n"); + gr_info->big_values = 288; + } + gr_info->pow2gain = iemmp3_gainpow2+256 - getbits_fast(8) + powdiff; + if(ms_stereo) + gr_info->pow2gain += 2; + gr_info->scalefac_compress = getbits(9); + /* window-switching flag == 1 for block_Type != 0 .. and block-type == 0 -> win-sw-flag = 0 */ + if(get1bit()) + { + int i; + gr_info->block_type = getbits_fast(2); + gr_info->mixed_block_flag = get1bit(); + gr_info->table_select[0] = getbits_fast(5); + gr_info->table_select[1] = getbits_fast(5); + /* + * table_select[2] not needed, because there is no region2, + * but to satisfy some verifications tools we set it either. + */ + gr_info->table_select[2] = 0; + for(i=0;i<3;i++) + gr_info->full_gain[i] = gr_info->pow2gain + (getbits_fast(3)<<3); + if(gr_info->block_type == 0) + { + post("Blocktype == 0 and window-switching == 1 not allowed.\n"); + return(0); + } + /* region_count/start parameters are implicit in this case. */ + /* check this again! */ + if(gr_info->block_type == 2) + gr_info->region1start = 36>>1; + else if(sfreq == 8) + /* check this for 2.5 and sfreq=8 */ + gr_info->region1start = 108>>1; + else + gr_info->region1start = 54>>1; + gr_info->region2start = 576>>1; + } + else + { + int i,r0c,r1c; + for (i=0; i<3; i++) + gr_info->table_select[i] = getbits_fast(5); + r0c = getbits_fast(4); + r1c = getbits_fast(3); + gr_info->region1start = bandInfo[sfreq].longIdx[r0c+1] >> 1 ; + gr_info->region2start = bandInfo[sfreq].longIdx[r0c+1+r1c+1] >> 1; + gr_info->block_type = 0; + gr_info->mixed_block_flag = 0; + } + gr_info->scalefac_scale = get1bit(); + gr_info->count1table_select = get1bit(); + } + return(1); +} + + +#ifdef IEM_MPEG1 +static int III_get_side_info_1(struct iemmp3_III_sideinfo *si,int stereo, + int ms_stereo,long sfreq,int single) +{ + int ch, gr; + int powdiff = (single == 3) ? 4 : 0; + + si->main_data_begin = getbits(9); + if (stereo == 1) + si->private_bits = getbits_fast(5); + else + si->private_bits = getbits_fast(3); + + for (ch=0; chch[ch].gr[0].scfsi = -1; + si->ch[ch].gr[1].scfsi = getbits_fast(4); + } + + for (gr=0; gr<2; gr++) + { + for (ch=0; chch[ch].gr[gr]); + + gr_info->part2_3_length = getbits(12); + gr_info->big_values = getbits_fast(9); + if(gr_info->big_values > 288) + { + post("big_values too large!\n"); + gr_info->big_values = 288; + } + gr_info->pow2gain = iemmp3_gainpow2+256 - getbits_fast(8) + powdiff; + if(ms_stereo) + gr_info->pow2gain += 2; + gr_info->scalefac_compress = getbits_fast(4); + /* window-switching flag == 1 for block_Type != 0 .. and block-type == 0 -> win-sw-flag = 0 */ + if(get1bit()) + { + int i; + + gr_info->block_type = getbits_fast(2); + gr_info->mixed_block_flag = get1bit(); + gr_info->table_select[0] = getbits_fast(5); + gr_info->table_select[1] = getbits_fast(5); + /* + * table_select[2] not needed, because there is no region2, + * but to satisfy some verifications tools we set it either. + */ + gr_info->table_select[2] = 0; + for(i=0;i<3;i++) + gr_info->full_gain[i] = gr_info->pow2gain + (getbits_fast(3)<<3); + + if(gr_info->block_type == 0) + { + post("Blocktype == 0 and window-switching == 1 not allowed.\n"); + return(0); + } + /* region_count/start parameters are implicit in this case. */ + gr_info->region1start = 36>>1; + gr_info->region2start = 576>>1; + } + else + { + int i,r0c,r1c; + for (i=0; i<3; i++) + gr_info->table_select[i] = getbits_fast(5); + r0c = getbits_fast(4); + r1c = getbits_fast(3); + gr_info->region1start = bandInfo[sfreq].longIdx[r0c+1] >> 1 ; + gr_info->region2start = bandInfo[sfreq].longIdx[r0c+1+r1c+1] >> 1; + gr_info->block_type = 0; + gr_info->mixed_block_flag = 0; + } + gr_info->preflag = get1bit(); + gr_info->scalefac_scale = get1bit(); + gr_info->count1table_select = get1bit(); + } + } + return(1); +} +#endif + +static int set_pointer(long backstep) +{ + unsigned char *bsbufold; + if(iemmp3_gmp->fsizeold < 0 && backstep > 0) + { + post("Can't step back %ld!\n",backstep); + return MP3_ERR; + } + bsbufold = iemmp3_gmp->bsspace[iemmp3_gmp->bsnum] + 512; + iemmp3_wordpointer -= backstep; + if (backstep) + memcpy(iemmp3_wordpointer,bsbufold+iemmp3_gmp->fsizeold-backstep,backstep); + iemmp3_bitindex = 0; + return MP3_OK; +} + +#ifdef IEM_MPEG1 +static int III_get_scale_factors_1(int *scf,struct iemmp3_gr_info_s *gr_info) +{ + static unsigned char slen[2][16] = { + {0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4}, + {0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3} + }; + int numbits; + int num0 = slen[0][gr_info->scalefac_compress]; + int num1 = slen[1][gr_info->scalefac_compress]; + + if (gr_info->block_type == 2) + { + int i=18; + + numbits = (num0 + num1) * 18; + if (gr_info->mixed_block_flag) + { + for (i=8;i;i--) + *scf++ = getbits_fast(num0); + i = 9; + numbits -= num0; /* num0 * 17 + num1 * 18 */ + } + + for (;i;i--) + *scf++ = getbits_fast(num0); + for (i = 18; i; i--) + *scf++ = getbits_fast(num1); + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* short[13][0..2] = 0 */ + } + else + { + int i; + int scfsi = gr_info->scfsi; + + if(scfsi < 0) + { /* scfsi < 0 => granule == 0 */ + for(i=11;i;i--) + *scf++ = getbits_fast(num0); + for(i=10;i;i--) + *scf++ = getbits_fast(num1); + numbits = (num0 + num1) * 10 + num0; + } + else + { + numbits = 0; + if(!(scfsi & 0x8)) + { + for (i=6;i;i--) + *scf++ = getbits_fast(num0); + numbits += num0 * 6; + } + else + { + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* set to ZERO necessary? */ + *scf++ = 0; *scf++ = 0; *scf++ = 0; + } + + if(!(scfsi & 0x4)) + { + for (i=5;i;i--) + *scf++ = getbits_fast(num0); + numbits += num0 * 5; + } + else + { + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* set to ZERO necessary? */ + *scf++ = 0; *scf++ = 0; + } + + if(!(scfsi & 0x2)) + { + for(i=5;i;i--) + *scf++ = getbits_fast(num1); + numbits += num1 * 5; + } + else + { + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* set to ZERO necessary? */ + *scf++ = 0; *scf++ = 0; + } + + if(!(scfsi & 0x1)) + { + for (i=5;i;i--) + *scf++ = getbits_fast(num1); + numbits += num1 * 5; + } + else + { + *scf++ = 0; *scf++ = 0; *scf++ = 0; /* set to ZERO necessary? */ + *scf++ = 0; *scf++ = 0; + } + } + + *scf++ = 0; /* no l[21] in original sources */ + } + return numbits; +} +#endif + +static int III_get_scale_factors_2(int *scf,struct iemmp3_gr_info_s *gr_info,int i_stereo) +{ + unsigned char *pnt; + int i,j; + unsigned int slen; + int n = 0; + int numbits = 0; + + static unsigned char stab[3][6][4] = { + { { 6, 5, 5,5 } , { 6, 5, 7,3 } , { 11,10,0,0} , + { 7, 7, 7,0 } , { 6, 6, 6,3 } , { 8, 8,5,0} } , + { { 9, 9, 9,9 } , { 9, 9,12,6 } , { 18,18,0,0} , + {12,12,12,0 } , {12, 9, 9,6 } , { 15,12,9,0} } , + { { 6, 9, 9,9 } , { 6, 9,12,6 } , { 15,18,0,0} , + { 6,15,12,0 } , { 6,12, 9,6 } , { 6,18,9,0} } }; + + if(i_stereo) /* i_stereo AND second channel -> do_layer3() checks this */ + slen = iemmp3_slen2[gr_info->scalefac_compress>>1]; + else + slen = iemmp3_n_slen2[gr_info->scalefac_compress]; + + gr_info->preflag = (slen>>15) & 0x1; + + n = 0; + if( gr_info->block_type == 2 ) + { + n++; + if(gr_info->mixed_block_flag) + n++; + } + + pnt = stab[n][(slen>>12)&0x7]; + + for(i=0;i<4;i++) + { + int num = slen & 0x7; + slen >>= 3; + if(num) + { + for(j=0;j<(int)(pnt[i]);j++) + *scf++ = getbits_fast(num); + numbits += pnt[i] * num; + } + else + { + for(j=0;j<(int)(pnt[i]);j++) + *scf++ = 0; + } + } + + n = (n << 1) + 1; + for(i=0;iscalefac_scale; + real *xrpnt = (real *) xr; + int l[3],l3; + int part2remain = gr_info->part2_3_length - part2bits; + int *me; + + { + int bv = gr_info->big_values; + int region1 = gr_info->region1start; + int region2 = gr_info->region2start; + + l3 = ((576>>1)-bv)>>1; + /* + * we may lose the 'odd' bit here !! + * check this later again + */ + if(bv <= region1) + { + l[0] = bv; l[1] = 0; l[2] = 0; + } + else + { + l[0] = region1; + if(bv <= region2) + { + l[1] = bv - l[0]; l[2] = 0; + } + else + { + l[1] = region2 - l[0]; l[2] = bv - region2; + } + } + } + + if(gr_info->block_type == 2) + { + /* + * decoding with short or mixed mode BandIndex table + */ + int i,max[4]; + int step=0,lwin=0,cb=0; + register real v = 0.0; + register int *m,mc; + + if(gr_info->mixed_block_flag) + { + max[3] = -1; + max[0] = max[1] = max[2] = 2; + m = iemmp3_map[sfreq][0]; + me = iemmp3_mapend[sfreq][0]; + } + else + { + max[0] = max[1] = max[2] = max[3] = -1; + /* max[3] not really needed in this case */ + m = iemmp3_map[sfreq][1]; + me = iemmp3_mapend[sfreq][1]; + } + + mc = 0; + for(i=0;i<2;i++) + { + int lp = l[i]; + struct iemmp3_newHuff *h = iemmp3_ht+gr_info->table_select[i]; + for(;lp;lp--,mc--) + { + register int x,y; + if( (!mc) ) + { + mc = *m++; + xrpnt = ((real *) xr) + (*m++); + lwin = *m++; + cb = *m++; + if(lwin == 3) + { + v = gr_info->pow2gain[(*scf++) << shift]; + step = 1; + } + else + { + v = gr_info->full_gain[lwin][(*scf++) << shift]; + step = 3; + } + } + { + register short *val = h->table; + while((y=*val++)<0) + { + if (get1bit()) + val -= y; + part2remain--; + } + x = y >> 4; + y &= 0xf; + } + if(x == 15) + { + max[lwin] = cb; + part2remain -= h->linbits+1; + x += getbits(h->linbits); + if(get1bit()) + *xrpnt = -iemmp3_ispow[x] * v; + else + *xrpnt = iemmp3_ispow[x] * v; + } + else if(x) + { + max[lwin] = cb; + if(get1bit()) + *xrpnt = -iemmp3_ispow[x] * v; + else + *xrpnt = iemmp3_ispow[x] * v; + part2remain--; + } + else + *xrpnt = 0.0; + xrpnt += step; + if(y == 15) + { + max[lwin] = cb; + part2remain -= h->linbits+1; + y += getbits(h->linbits); + if(get1bit()) + *xrpnt = -iemmp3_ispow[y] * v; + else + *xrpnt = iemmp3_ispow[y] * v; + } + else if(y) + { + max[lwin] = cb; + if(get1bit()) + *xrpnt = -iemmp3_ispow[y] * v; + else + *xrpnt = iemmp3_ispow[y] * v; + part2remain--; + } + else + *xrpnt = 0.0; + xrpnt += step; + } + } + for(;l3 && (part2remain > 0);l3--) + { + struct iemmp3_newHuff *h = iemmp3_htc+gr_info->count1table_select; + register short *val = h->table,a; + + while((a=*val++)<0) + { + part2remain--; + if(part2remain < 0) + { + part2remain++; + a = 0; + break; + } + if (get1bit()) + val -= a; + } + + for(i=0;i<4;i++) + { + if(!(i & 1)) + { + if(!mc) + { + mc = *m++; + xrpnt = ((real *) xr) + (*m++); + lwin = *m++; + cb = *m++; + if(lwin == 3) + { + v = gr_info->pow2gain[(*scf++) << shift]; + step = 1; + } + else + { + v = gr_info->full_gain[lwin][(*scf++) << shift]; + step = 3; + } + } + mc--; + } + if( (a & (0x8>>i)) ) + { + max[lwin] = cb; + part2remain--; + if(part2remain < 0) + { + part2remain++; + break; + } + if(get1bit()) + *xrpnt = -v; + else + *xrpnt = v; + } + else + *xrpnt = 0.0; + xrpnt += step; + } + } + + while( m < me ) + { + if(!mc) + { + mc = *m++; + xrpnt = ((real *) xr) + *m++; + if( (*m++) == 3) + step = 1; + else + step = 3; + m++; /* cb */ + } + mc--; + *xrpnt = 0.0; + xrpnt += step; + *xrpnt = 0.0; + xrpnt += step; + /* we could add a little opt. here: + * if we finished a band for window 3 or a long band + * further bands could copied in a simple loop without a + * special 'map' decoding + */ + } + + gr_info->maxband[0] = max[0]+1; + gr_info->maxband[1] = max[1]+1; + gr_info->maxband[2] = max[2]+1; + gr_info->maxbandl = max[3]+1; + + { + int rmax = max[0] > max[1] ? max[0] : max[1]; + rmax = (rmax > max[2] ? rmax : max[2]) + 1; + gr_info->maxb = rmax ? iemmp3_shortLimit[sfreq][rmax] : iemmp3_longLimit[sfreq][max[3]+1]; + } + + } + else + { + /* + * decoding with 'long' BandIndex table (block_type != 2) + */ + int *pretab = gr_info->preflag ? iemmp3_pretab1 : iemmp3_pretab2; + int i,max = -1; + int cb = 0; + register int *m = iemmp3_map[sfreq][2]; + register real v = 0.0; + register int mc = 0; + + /* + * long hash table values + */ + for(i=0;i<3;i++) + { + int lp = l[i]; + struct iemmp3_newHuff *h = iemmp3_ht+gr_info->table_select[i]; + + for(;lp;lp--,mc--) + { + int x,y; + + if(!mc) + { + mc = *m++; + v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; + cb = *m++; + } + { + register short *val = h->table; + while((y=*val++)<0) + { + if (get1bit()) + val -= y; + part2remain--; + } + x = y >> 4; + y &= 0xf; + } + if (x == 15) + { + max = cb; + part2remain -= h->linbits+1; + x += getbits(h->linbits); + if(get1bit()) + *xrpnt++ = -iemmp3_ispow[x] * v; + else + *xrpnt++ = iemmp3_ispow[x] * v; + } + else if(x) + { + max = cb; + if(get1bit()) + *xrpnt++ = -iemmp3_ispow[x] * v; + else + *xrpnt++ = iemmp3_ispow[x] * v; + part2remain--; + } + else + *xrpnt++ = 0.0; + + if (y == 15) + { + max = cb; + part2remain -= h->linbits+1; + y += getbits(h->linbits); + if(get1bit()) + *xrpnt++ = -iemmp3_ispow[y] * v; + else + *xrpnt++ = iemmp3_ispow[y] * v; + } + else if(y) + { + max = cb; + if(get1bit()) + *xrpnt++ = -iemmp3_ispow[y] * v; + else + *xrpnt++ = iemmp3_ispow[y] * v; + part2remain--; + } + else + *xrpnt++ = 0.0; + } + } + + /* + * short (count1table) values + */ + for(;l3 && (part2remain > 0);l3--) + { + struct iemmp3_newHuff *h = iemmp3_htc+gr_info->count1table_select; + register short *val = h->table,a; + + while((a=*val++)<0) + { + part2remain--; + if(part2remain < 0) + { + part2remain++; + a = 0; + break; + } + if (get1bit()) + val -= a; + } + + for(i=0;i<4;i++) + { + if(!(i & 1)) + { + if(!mc) + { + mc = *m++; + cb = *m++; + v = gr_info->pow2gain[((*scf++) + (*pretab++)) << shift]; + } + mc--; + } + if ( (a & (0x8>>i)) ) + { + max = cb; + part2remain--; + if(part2remain < 0) + { + part2remain++; + break; + } + if(get1bit()) + *xrpnt++ = -v; + else + *xrpnt++ = v; + } + else + *xrpnt++ = 0.0; + } + } + + /* + * zero part + */ + for(i=(&xr[SBLIMIT][0]-xrpnt)>>1;i;i--) + { + *xrpnt++ = 0.0; + *xrpnt++ = 0.0; + } + + gr_info->maxbandl = max+1; + gr_info->maxb = iemmp3_longLimit[sfreq][gr_info->maxbandl]; + } + + while( part2remain > 16 ) + { + getbits(16); /* Dismiss stuffing Bits */ + part2remain -= 16; + } + if(part2remain > 0) + getbits(part2remain); + else if(part2remain < 0) + { + post("mpg123: Can't rewind stream by %d bits!\n",-part2remain); + return 1; /* -> error */ + } + return 0; +} + +static void III_i_stereo(real xr_buf[2][SBLIMIT][SSLIMIT],int *scalefac, + struct iemmp3_gr_info_s *gr_info,int sfreq,int ms_stereo,int lsf) +{ + real (*xr)[SBLIMIT*SSLIMIT] = (real (*)[SBLIMIT*SSLIMIT] ) xr_buf; + struct iemmp3_bandInfoStruct *bi = &bandInfo[sfreq]; + real *tab1,*tab2; + + if(lsf) + { + int p = gr_info->scalefac_compress & 0x1; + if(ms_stereo) + { + tab1 = iemmp3_pow1_2[p]; tab2 = iemmp3_pow2_2[p]; + } + else + { + tab1 = iemmp3_pow1_1[p]; tab2 = iemmp3_pow2_1[p]; + } + } + else + { + if(ms_stereo) + { + tab1 = iemmp3_tan1_2; tab2 = iemmp3_tan2_2; + } + else + { + tab1 = iemmp3_tan1_1; tab2 = iemmp3_tan2_1; + } + } + + if (gr_info->block_type == 2) + { + int lwin,do_l = 0; + if( gr_info->mixed_block_flag ) + do_l = 1; + + for (lwin=0;lwin<3;lwin++) /* process each window */ + { + /* get first band with zero values */ + int is_p,sb,idx,sfb = gr_info->maxband[lwin]; /* sfb is minimal 3 for mixed mode */ + if(sfb > 3) + do_l = 0; + + for(;sfb<12;sfb++) + { + is_p = scalefac[sfb*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ + if(is_p != 7) { + real t1,t2; + sb = bi->shortDiff[sfb]; + idx = bi->shortIdx[sfb] + lwin; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for (; sb > 0; sb--,idx+=3) + { + real v = xr[0][idx]; + xr[0][idx] = v * t1; + xr[1][idx] = v * t2; + } + } + } + +#if 1 + /* in the original: copy 10 to 11 , here: copy 11 to 12 + maybe still wrong??? (copy 12 to 13?) */ + is_p = scalefac[11*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ + sb = bi->shortDiff[12]; + idx = bi->shortIdx[12] + lwin; +#else + is_p = scalefac[10*3+lwin-gr_info->mixed_block_flag]; /* scale: 0-15 */ + sb = bi->shortDiff[11]; + idx = bi->shortIdx[11] + lwin; +#endif + if(is_p != 7) + { + real t1,t2; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for ( ; sb > 0; sb--,idx+=3 ) + { + real v = xr[0][idx]; + xr[0][idx] = v * t1; + xr[1][idx] = v * t2; + } + } + } /* end for(lwin; .. ; . ) */ + + if (do_l) + { + /* also check l-part, if ALL bands in the three windows are 'empty' + * and mode = mixed_mode + */ + int sfb = gr_info->maxbandl; + int idx = bi->longIdx[sfb]; + + for ( ; sfb<8; sfb++ ) + { + int sb = bi->longDiff[sfb]; + int is_p = scalefac[sfb]; /* scale: 0-15 */ + if(is_p != 7) { + real t1,t2; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for ( ; sb > 0; sb--,idx++) + { + real v = xr[0][idx]; + xr[0][idx] = v * t1; + xr[1][idx] = v * t2; + } + } + else + idx += sb; + } + } + } + else /* ((gr_info->block_type != 2)) */ + { + int sfb = gr_info->maxbandl; + int is_p,idx = bi->longIdx[sfb]; + for ( ; sfb<21; sfb++) + { + int sb = bi->longDiff[sfb]; + is_p = scalefac[sfb]; /* scale: 0-15 */ + if(is_p != 7) { + real t1,t2; + t1 = tab1[is_p]; t2 = tab2[is_p]; + for ( ; sb > 0; sb--,idx++) + { + real v = xr[0][idx]; + xr[0][idx] = v * t1; + xr[1][idx] = v * t2; + } + } + else + idx += sb; + } + + is_p = scalefac[20]; /* copy l-band 20 to l-band 21 */ + if(is_p != 7) + { + int sb; + real t1 = tab1[is_p],t2 = tab2[is_p]; + + for ( sb = bi->longDiff[21]; sb > 0; sb--,idx++ ) + { + real v = xr[0][idx]; + xr[0][idx] = v * t1; + xr[1][idx] = v * t2; + } + } + } /* ... */ +} + + +static void III_antialias(real xr[SBLIMIT][SSLIMIT],struct iemmp3_gr_info_s *gr_info) +{ + int sblim; + + if(gr_info->block_type == 2) + { + if(!gr_info->mixed_block_flag) + return; + sblim = 1; + } + else { + sblim = gr_info->maxb-1; + } + + /* 31 alias-reduction operations between each pair of sub-bands */ + /* with 8 butterflies between each pair */ + + { + int sb; + real *xr1=(real *) xr[1]; + + for(sb=sblim;sb;sb--,xr1+=10) + { + int ss; + real *cs=iemmp3_aa_cs,*ca=iemmp3_aa_ca; + real *xr2 = xr1; + + for(ss=7;ss>=0;ss--) + { /* upper and lower butterfly inputs */ + register real bu = *--xr2,bd = *xr1; + *xr2 = (bu * (*cs) ) - (bd * (*ca) ); + *xr1++ = (bd * (*cs++) ) + (bu * (*ca++) ); + } + } + } +} + +static void III_hybrid(real fsIn[SBLIMIT][SSLIMIT],real tsOut[SSLIMIT][SBLIMIT], + int ch,struct iemmp3_gr_info_s *gr_info) +{ + real *tspnt = (real *) tsOut; + real (*block)[2][SBLIMIT*SSLIMIT] = iemmp3_gmp->hybrid_block; + int *blc = iemmp3_gmp->hybrid_blc; + real *rawout1,*rawout2; + int bt; + unsigned int sb = 0; + + { + int b = blc[ch]; + rawout1=block[b][ch]; + b=-b+1; + rawout2=block[b][ch]; + blc[ch] = b; + } + + + if(gr_info->mixed_block_flag) { + sb = 2; + dct36(fsIn[0],rawout1,rawout2,iemmp3_win[0],tspnt); + dct36(fsIn[1],rawout1+18,rawout2+18,iemmp3_win1[0],tspnt+1); + rawout1 += 36; rawout2 += 36; tspnt += 2; + } + + bt = gr_info->block_type; + if(bt == 2) { + for (; sbmaxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) { + dct12(fsIn[sb],rawout1,rawout2,iemmp3_win[2],tspnt); + dct12(fsIn[sb+1],rawout1+18,rawout2+18,iemmp3_win1[2],tspnt+1); + } + } + else { + for (; sbmaxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) { + dct36(fsIn[sb],rawout1,rawout2,iemmp3_win[bt],tspnt); + dct36(fsIn[sb+1],rawout1+18,rawout2+18,iemmp3_win1[bt],tspnt+1); + } + } + + for(;sbsynth_bo; + + if(!channel) + { + bo--; + bo &= 0xf; + buf = iemmp3_gmp->synth_buffs[0]; + } + else + { + samples++; + buf = iemmp3_gmp->synth_buffs[1]; + } + + if(bo & 0x1) + { + b0 = buf[0]; + bo1 = bo; + dct64(buf[1]+((bo+1)&0xf),buf[0]+bo,bandPtr); + } + else + { + b0 = buf[1]; + bo1 = bo+1; + dct64(buf[0]+bo,buf[1]+bo+1,bandPtr); + } + + iemmp3_gmp->synth_bo = bo; + + { + register int j; + real *window = iemmp3_decwin + 16 - bo1; + + for (j=16;j;j--,b0+=0x10,window+=0x20,samples+=step) + { + real sum; + sum = window[0x0] * b0[0x0]; + sum -= window[0x1] * b0[0x1]; + sum += window[0x2] * b0[0x2]; + sum -= window[0x3] * b0[0x3]; + sum += window[0x4] * b0[0x4]; + sum -= window[0x5] * b0[0x5]; + sum += window[0x6] * b0[0x6]; + sum -= window[0x7] * b0[0x7]; + sum += window[0x8] * b0[0x8]; + sum -= window[0x9] * b0[0x9]; + sum += window[0xA] * b0[0xA]; + sum -= window[0xB] * b0[0xB]; + sum += window[0xC] * b0[0xC]; + sum -= window[0xD] * b0[0xD]; + sum += window[0xE] * b0[0xE]; + sum -= window[0xF] * b0[0xF]; + WRITE_SAMPLE(samples,sum,clip); + } + + { + real sum; + sum = window[0x0] * b0[0x0]; + sum += window[0x2] * b0[0x2]; + sum += window[0x4] * b0[0x4]; + sum += window[0x6] * b0[0x6]; + sum += window[0x8] * b0[0x8]; + sum += window[0xA] * b0[0xA]; + sum += window[0xC] * b0[0xC]; + sum += window[0xE] * b0[0xE]; + WRITE_SAMPLE(samples,sum,clip); + b0-=0x10,window-=0x20,samples+=step; + } + window += bo1<<1; + + for (j=15;j;j--,b0-=0x10,window-=0x20,samples+=step) + { + real sum; + sum = -window[-0x1] * b0[0x0]; + sum -= window[-0x2] * b0[0x1]; + sum -= window[-0x3] * b0[0x2]; + sum -= window[-0x4] * b0[0x3]; + sum -= window[-0x5] * b0[0x4]; + sum -= window[-0x6] * b0[0x5]; + sum -= window[-0x7] * b0[0x6]; + sum -= window[-0x8] * b0[0x7]; + sum -= window[-0x9] * b0[0x8]; + sum -= window[-0xA] * b0[0x9]; + sum -= window[-0xB] * b0[0xA]; + sum -= window[-0xC] * b0[0xB]; + sum -= window[-0xD] * b0[0xC]; + sum -= window[-0xE] * b0[0xD]; + sum -= window[-0xF] * b0[0xE]; + sum -= window[-0x0] * b0[0xF]; + WRITE_SAMPLE(samples,sum,clip); + } + } + *pnt += 128; + + return clip; +} + + + +static void *mp3play_tilde_new(void) +{ + char *vec; + t_mp3play_tilde *x = (t_mp3play_tilde *)pd_new(mp3play_tilde_class); + + x->file_is_open = 0; + x->play_state = 0; + x->mp3_encode_size = 0; + x->mp3_out_index = 0; + x->file_block_num = 0; + x->file_remain = 0; + x->file_size = 0; + x->mp3_ch = 1; + x->mp3_sr = 44100; + x->obj_sr = 44100; + x->obj_n = 1; + x->samp_per_frame = 1152; + x->mp3_byterate = 11; + x->down = 0; + x->scale = 1.0/32768.0; + x->offset_sec = 0.0; + x->fh = (FILE *)0L; + x->mp3inbuf = (char *)getzbytes(MY_MP3_MALLOC_IN_SIZE); + x->mp3outbuf = (char *)getzbytes(MY_MP3_MALLOC_OUT_SIZE); + x->filename = (char *)getzbytes(MY_MP3_MALLOC_FN); + x->begframeseek = (int *)0; + x->curframeseek = 0; + x->maxframeseek = 0; + x->frame_counter = 0; + x->time1_bang0_handle = 0; + x->time_factor = 0.0; + vec = x->filename; + *vec = 0; + InitMP3(&(x->mp)); + x->mp_is_init = 1; + x->x_clock = clock_new(x, (t_method)mp3play_tilde_tick); + outlet_new(&x->x_obj, &s_signal); + outlet_new(&x->x_obj, &s_signal); + x->x_floatout = outlet_new(&x->x_obj, &s_float); + x->x_bangout = outlet_new(&x->x_obj, &s_bang); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("ft1")); + x->x_canvas = canvas_getcurrent(); + return (x); +} + +static void mp3play_tilde_cleanup(t_mp3play_tilde *x) +{ + x->file_is_open = 0; + fclose(x->fh); + x->play_state = 0; + x->mp3_out_index = 0; + x->mp_is_init = 0; + ExitMP3(&(x->mp)); + x->time1_bang0_handle = 0; + clock_delay(x->x_clock, 0); +} + +static int mp3play_tilde_read_frame_length_first(t_mp3play_tilde *x, int *frsz) +{ + int framesize, lsf, bitrate_index, sampling_frequency, padding, mpeg25, lay, ret=MP3_EX; + int version, syncword; + unsigned long head; + unsigned char chead; + + *frsz = 0; + if((x->file_size) >= 4) + { + fread(&chead, 1, sizeof(char), x->fh); + head = (unsigned int)chead; + fread(&chead, 1, sizeof(char), x->fh); + head <<= 8; + head |= (unsigned int)chead; + fread(&chead, 1, sizeof(char), x->fh); + head <<= 8; + head |= (unsigned int)chead; + fread(&chead, 1, sizeof(char), x->fh); + head <<= 8; + head |= (unsigned int)chead; + syncword = (head >> 20) & 0x0fff; + version = ((head >> 19) & 0x01) ? 0 : 1; + if((syncword & 0x01) == 0) + version = 2; + if(version == 0) + x->samp_per_frame = 1152; + else + x->samp_per_frame = 576; + + if(head & (1<<20)) + { + lsf = (head & (1<<19)) ? 0x0 : 0x1; + mpeg25 = 0; + } + else + { + lsf = 1; + mpeg25 = 1; + } + lay = 4-((head>>17)&3); + if(((head>>10)&0x3) == 0x3) + { + post("Stream error"); + return(MP3_EX); + } + if(mpeg25) + sampling_frequency = 6 + ((head>>10)&0x3); + else + sampling_frequency = ((head>>10)&0x3) + (lsf*3); + x->mp3_sr = (int)iemmp3_freqs[sampling_frequency]; + if(mpeg25) + bitrate_index = ((head>>12)&0xf); + bitrate_index = ((head>>12)&0xf); + padding = ((head>>9)&0x1); + if(!bitrate_index) + { + post("Free format not supported.\n"); + return(MP3_EX); + } + switch(lay) + { + case 1: + post("Layer I not supported!\n"); + break; + case 2: + post("Layer II not supported!\n"); + break; + case 3: + framesize = iemmp3_tabsel_123[lsf][2][bitrate_index]*144000; + framesize /= (iemmp3_freqs[sampling_frequency] << lsf); + framesize += padding; + *frsz = framesize; + ret = 0; + break; + default: + post("Sorry, unknown layer type.\n"); + break; + } + return(ret); + } + else + { + return(1); + } +} + +static int mp3play_tilde_read_frame_length_next(t_mp3play_tilde *x, int *frsz, int frame_counter) +{ + int framesize, lsf, bitrate_index, sampling_frequency, *begframeseek=x->begframeseek; + unsigned long head; + unsigned char chead; + + *frsz = 0; + if(begframeseek[frame_counter] < ((x->file_size) - 4)) + { + fread(&chead, 1, sizeof(char), x->fh); + head = (unsigned int)chead; + fread(&chead, 1, sizeof(char), x->fh); + head <<= 8; + head |= (unsigned int)chead; + fread(&chead, 1, sizeof(char), x->fh); + head <<= 8; + head |= (unsigned int)chead; + fread(&chead, 1, sizeof(char), x->fh); + head <<= 8; + head |= (unsigned int)chead; + if(head & (1<<20)) + { + lsf = (head & (1<<19)) ? 0x0 : 0x1; + sampling_frequency = ((head>>10)&0x3) + (lsf*3); + } + else + { + lsf = 1; + sampling_frequency = 6 + ((head>>10)&0x3); + } + bitrate_index = ((head>>12)&0xf); + framesize = iemmp3_tabsel_123[lsf][2][bitrate_index]*144000; + framesize /= (iemmp3_freqs[sampling_frequency] << lsf); + framesize += ((head>>9)&0x1); + *frsz = framesize; + return(0); + } + else + return(1); +} + +static int mp3play_tilde_calc_frames(t_mp3play_tilde *x) +{ + int *begframeseek=x->begframeseek, i, maxframeseek, framesize, frame_counter; + float length; + + fseek(x->fh,0,SEEK_SET); + if(!mp3play_tilde_read_frame_length_first(x, &framesize)) + { + if(framesize <= 0) + { + return(MP3_EX); + } + i = framesize - 6; + maxframeseek = (x->file_size) / i; + if(!begframeseek) + { + x->begframeseek = (int *)getzbytes((maxframeseek)*sizeof(int)); + x->maxframeseek = maxframeseek; + } + else + { + if(maxframeseek > (x->maxframeseek)) + { + freebytes(x->begframeseek, (x->maxframeseek)*sizeof(int)); + x->begframeseek = (int *)getzbytes((maxframeseek)*sizeof(int)); + x->maxframeseek = maxframeseek; + } + } + begframeseek = x->begframeseek; + begframeseek[0] = 0; + begframeseek[1] = framesize; + frame_counter = 1; + /*x->curframeseek = maxframeseek;*/ + fseek(x->fh, begframeseek[1], SEEK_SET); + while(!mp3play_tilde_read_frame_length_next(x, &framesize, frame_counter)) + { + begframeseek[frame_counter+1] = begframeseek[frame_counter] + framesize; + frame_counter++; + fseek(x->fh, begframeseek[frame_counter], SEEK_SET); + }; + frame_counter--; + length = (float)(frame_counter)*(float)(x->samp_per_frame) / (float)(x->mp3_sr); + x->length_sec = length; + x->time_factor = length / (float)(frame_counter); + x->curframeseek = frame_counter; + fseek(x->fh,0,SEEK_SET); + return(MP3_OK); + } + else + return(MP3_EX); +} + +static void mp3play_tilde_do_open(t_mp3play_tilde *x, char *str, int calc_it) +{ + int mp3_sr, obj_sr; + int file_size, size, mp3_encode_return=MP3_OK, mp3_read_length, i, j, *begframeseek; + static char *modes[4] = { "Stereo", "Joint-Stereo", "Dual-Channel", "Single-Channel" }; + static char *layers[4] = { "Unknown" , "I", "II", "III" }; + char completefilename[400]; + + if(x->file_is_open) + { + post("mp3play-ERROR: file is already open, please stop it first!"); + } + else if(*str == 0) + { + post("mp3play-ERROR: there is no filename to open"); + } + else + { + if(str[0] == '/') + { + strcpy(completefilename, str); + } + else if(((str[0] >= 'A')&&(str[0] <= 'Z')|| + (str[0] >= 'a')&&(str[0] <= 'z'))&& + (str[1] == ':')&&(str[2] == '/')) + { + strcpy(completefilename, str); + } + else + { + strcpy(completefilename, canvas_getdir(x->x_canvas)->s_name); + strcat(completefilename, "/"); + strcat(completefilename, str); + } + + if((x->fh = fopen(completefilename, "rb")) == NULL) + { + post("mp3play-ERROR: cannot open %s", completefilename); + } + else + { + strcpy(x->filename, completefilename); + fseek(x->fh,0,SEEK_END); + file_size = (int)ftell(x->fh); + x->file_size = file_size; + if(!x->mp_is_init) + { + InitAgainMP3(&(x->mp)); + x->mp_is_init = 1; + } + if(calc_it) + mp3_encode_return = mp3play_tilde_calc_frames(x); + if(mp3_encode_return == MP3_EX) + { + mp3play_tilde_cleanup(x); + return; + } + if(x->frame_counter) + x->frame_counter = (int)(x->offset_sec / x->time_factor); + i = x->frame_counter; + if(i > (x->curframeseek - 1)) + i = x->curframeseek - 1; + begframeseek = x->begframeseek; + j = begframeseek[i]; + fseek(x->fh,j,SEEK_SET); + x->file_block_num = (file_size-j) / MY_MP3_MALLOC_IN_SIZE; + x->file_remain = (file_size-j) - (x->file_block_num)*MY_MP3_MALLOC_IN_SIZE; + if(x->file_block_num) + { + mp3_read_length = MY_MP3_MALLOC_IN_SIZE; + x->file_block_num--; + } + else + { + mp3_read_length = x->file_remain; + x->file_remain = 0; + } + if(mp3_read_length > 0) + { + fread(x->mp3inbuf, mp3_read_length, sizeof(char), x->fh); + mp3_encode_return = decodeMP3(&(x->mp), x->mp3inbuf, mp3_read_length, x->mp3outbuf, + MY_MP3_MALLOC_IN_SIZE2, &size); + if(mp3_encode_return == MP3_EX) + { + mp3play_tilde_cleanup(x); + return; + } + post ("MPEG %s, Layer: %s, Freq: %ld, mode: %s, modext: %d, BPF : %d", + x->mp.fr.mpeg25 ? "2.5" : (x->mp.fr.lsf ? "2.0" : "1.0"), + layers[x->mp.fr.lay],iemmp3_freqs[x->mp.fr.sampling_frequency], + modes[x->mp.fr.mode],x->mp.fr.mode_ext,x->mp.fr.framesize+4); + post ("Channels: %d, copyright: %s, original: %s, CRC: %s, emphasis: %d.", + x->mp.fr.stereo,x->mp.fr.copyright?"Yes":"No", + x->mp.fr.original?"Yes":"No",x->mp.fr.error_protection?"Yes":"No", + x->mp.fr.emphasis); + post ("Bitrate: %d Kbits/s, Extension value: %d", + iemmp3_tabsel_123[x->mp.fr.lsf][x->mp.fr.lay-1] + [x->mp.fr.bitrate_index],x->mp.fr.extension); + post ("Original Soundfile-Length : %.3f sec.\n",x->length_sec); + + x->mp3_byterate = 128*iemmp3_tabsel_123[x->mp.fr.lsf][x->mp.fr.lay-1][x->mp.fr.bitrate_index]; + /* 1024/8 */ + + if(x->mp.fr.stereo == 2) + x->mp3_ch = 2; + else if(x->mp.fr.stereo == 1) + x->mp3_ch = 1; + else + { + x->mp3_ch = 1; + post("mp3_play~ WARNING: unknown number of channels : %d channels", + x->mp.fr.stereo); + } + mp3_sr = (int)(iemmp3_freqs[x->mp.fr.sampling_frequency]); + obj_sr = x->obj_sr; + x->mp3_sr = mp3_sr; + if(mp3_sr == obj_sr) + { + x->down = 0; + } + else if(2*mp3_sr == obj_sr) + { + x->down = 1; + } + else if(4*mp3_sr == obj_sr) + { + x->down = 2; + } + else if(mp3_sr == 2*obj_sr) + { + x->down = -1; + } + else if(mp3_sr == 4*obj_sr) + { + x->down = -2; + } + else + { + post("mp3_play~ WARNING: playing the filesamplerate of %d Hz at %d Hz", mp3_sr,obj_sr); + x->down = 0; + } + + if(mp3_encode_return == MP3_OK) + { + x->file_is_open = 1; + x->mp3_encode_size = size * sizeof(char) / sizeof(short); + } + else + { + x->file_is_open = 0; + x->mp3_out_index = 0; + fclose(x->fh); + } + } + else + { + x->file_is_open = 0; + fclose(x->fh); + } + } + x->play_state = 2; + x->mp3_out_index = 0; + } +} + +static t_int *mp3play_tilde_perform(t_int *w) +{ + t_mp3play_tilde *x = (t_mp3play_tilde *)(w[1]); + t_float *out1 = (t_float *)(w[2]); + t_float *out2 = (t_float *)(w[3]); + int n = (int)(w[4]); + short *ivec = (short *)(x->mp3outbuf); + int size, mp3_encode_return, mp3_read_length, mp3_ch, down; + float scale = x->scale, outa, outb; + int mp3_out_index = x->mp3_out_index; + + if (!x->file_is_open) + goto mp3play_tilde_labelzero; + if (x->play_state != 1) + goto mp3play_tilde_labelzero; + + if(mp3_out_index >= x->mp3_encode_size) + { + x->frame_counter++; + x->time1_bang0_handle = 1; + clock_delay(x->x_clock, 0); + mp3_out_index = 0; + mp3_encode_return = decodeMP3(&(x->mp), NULL, 0, x->mp3outbuf, + MY_MP3_MALLOC_IN_SIZE2, &size); + if(mp3_encode_return == MP3_OK) + x->mp3_encode_size = size * sizeof(char) / sizeof(short); + else if(mp3_encode_return == MP3_EX) + { + mp3play_tilde_cleanup(x); + goto mp3play_tilde_labelzero; + } + else + { + if(x->file_block_num > 0) + { + mp3_read_length = MY_MP3_MALLOC_IN_SIZE; + x->file_block_num--; + } + else if(x->file_remain > 0) + { + mp3_read_length = x->file_remain; + x->file_remain = 0; + } + else + { + mp3play_tilde_cleanup(x); + goto mp3play_tilde_labelzero; + } + + fread(x->mp3inbuf, mp3_read_length, sizeof(char), x->fh); + mp3_encode_return = decodeMP3(&(x->mp), x->mp3inbuf, mp3_read_length, + x->mp3outbuf, MY_MP3_MALLOC_IN_SIZE2, &size); + x->mp3_encode_size = size * sizeof(char) / sizeof(short); + if(mp3_encode_return == MP3_EX) + { + mp3play_tilde_cleanup(x); + goto mp3play_tilde_labelzero; + } + } + } + + mp3_ch = x->mp3_ch; + down = x->down; + if(mp3_ch == 2) + { + if(down == 0) + { + ivec += mp3_out_index; + x->mp3_out_index = mp3_out_index + 2*n; + while (n--) + { + *out1++ = scale * (float)(*ivec++); + *out2++ = scale * (float)(*ivec++); + } + } + else if(down == 1) + { + ivec += mp3_out_index; + x->mp3_out_index = mp3_out_index + n; + n /= 2; + while (n--) + { + outa = scale * (float)(*ivec++); + outb = scale * (float)(*ivec++); + *out1++ = outa; + *out2++ = outb; + *out1++ = outa; + *out2++ = outb; + } + } + else if(down == 2) + { + ivec += mp3_out_index; + x->mp3_out_index = mp3_out_index + n/2; + n /= 4; + while (n--) + { + outa = scale * (float)(*ivec++); + outb = scale * (float)(*ivec++); + *out1++ = outa; + *out2++ = outb; + *out1++ = outa; + *out2++ = outb; + *out1++ = outa; + *out2++ = outb; + *out1++ = outa; + *out2++ = outb; + } + } + else if(down == -1) + { + ivec += mp3_out_index; + x->mp3_out_index = mp3_out_index + 4*n; + while (n--) + { + outa = scale * (float)(*ivec++); + outb = scale * (float)(*ivec); + ivec += 3; + *out1++ = outa; + *out2++ = outa; + } + } + else if(down == -2) + { + ivec += mp3_out_index; + x->mp3_out_index = mp3_out_index + 8*n; + while (n--) + { + outa = scale * (float)(*ivec++); + outb = scale * (float)(*ivec); + ivec += 7; + *out1++ = outa; + *out2++ = outa; + } + } + } + else + { + if(down == 0) + { + ivec += mp3_out_index; + x->mp3_out_index = mp3_out_index + n; + while (n--) + { + outa = scale * (float)(*ivec++); + *out1++ = outa; + *out2++ = outa; + } + } + else if(down == 1) + { + ivec += mp3_out_index; + n /= 2; + x->mp3_out_index = mp3_out_index + n; + while (n--) + { + outa = scale * (float)(*ivec++); + *out1++ = outa; + *out2++ = outa; + *out1++ = outa; + *out2++ = outa; + } + } + else if(down == 2) + { + ivec += mp3_out_index; + n /= 4; + x->mp3_out_index = mp3_out_index + n; + while (n--) + { + outa = scale * (float)(*ivec++); + *out1++ = outa; + *out2++ = outa; + *out1++ = outa; + *out2++ = outa; + *out1++ = outa; + *out2++ = outa; + *out1++ = outa; + *out2++ = outa; + } + } + else if(down == -1) + { + ivec += mp3_out_index; + x->mp3_out_index = mp3_out_index + 2*n; + while (n--) + { + outa = scale * (float)(*ivec); + ivec += 2; + *out1++ = outa; + *out2++ = outa; + } + } + else if(down == -2) + { + ivec += mp3_out_index; + x->mp3_out_index = mp3_out_index + 4*n; + while (n--) + { + outa = scale * (float)(*ivec); + ivec += 4; + *out1++ = outa; + *out2++ = outa; + } + } + } + return (w+5); + +mp3play_tilde_labelzero: + + while (n--) + { + *out1++ = 0; + *out2++ = 0; + } + return (w+5); +} + +static void mp3play_tilde_dsp(t_mp3play_tilde *x, t_signal **sp) +{ + x->obj_sr = (int)(sp[0]->s_sr); + x->obj_n = (int)(sp[0]->s_n); + dsp_add(mp3play_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); +} + + + +static void mp3play_tilde_stop(t_mp3play_tilde *x) +{ + if(x->file_is_open) + { + x->file_block_num = 0; + x->file_remain = 0; + } +} + +static void mp3play_tilde_start(t_mp3play_tilde *x) +{ + if(x->file_is_open) + { + x->play_state = 1; + } +} + +static void mp3play_tilde_ft1(t_mp3play_tilde *x, t_floatarg offset) +{ + if(offset < 0.0) + offset = 0.0; + x->offset_sec = (float)offset; +} + +static void mp3play_tilde_pause(t_mp3play_tilde *x) +{ + if(x->file_is_open) + { + if(x->play_state == 0) + x->play_state = 1; + else if(x->play_state == 1) + x->play_state = 0; + } +} + +static void mp3play_tilde_open(t_mp3play_tilde *x, t_symbol *s) +{ + x->frame_counter = 0; + mp3play_tilde_do_open(x, (char *)s->s_name, 1); +} + +static void mp3play_tilde_open_again(t_mp3play_tilde *x) +{ + x->frame_counter = 0; + mp3play_tilde_do_open(x, x->filename, 0); +} + +static void mp3play_tilde_open_at(t_mp3play_tilde *x, t_symbol *s) +{ + x->frame_counter = 1; + mp3play_tilde_do_open(x, (char *)s->s_name, 1); +} + +static void mp3play_tilde_open_again_at(t_mp3play_tilde *x) +{ + x->frame_counter = 1; + mp3play_tilde_do_open(x, x->filename, 0); +} + + +static void mp3play_tilde_tick(t_mp3play_tilde *x) +{ + if(x->time1_bang0_handle) + { + outlet_float(x->x_floatout, (float)(x->frame_counter)*(x->time_factor)); + } + else + { + outlet_bang(x->x_bangout); + } +} + +static void mp3play_tilde_free(t_mp3play_tilde *x) +{ + if(x->mp_is_init) + ExitMP3(&(x->mp)); + if(x->begframeseek) + freebytes(x->begframeseek, (x->maxframeseek)*sizeof(int)); + freebytes(x->filename, MY_MP3_MALLOC_FN); + freebytes(x->mp3outbuf, MY_MP3_MALLOC_OUT_SIZE); + freebytes(x->mp3inbuf, MY_MP3_MALLOC_IN_SIZE); + clock_free(x->x_clock); +} + +void mp3play_tilde_setup(void) +{ + mp3play_tilde_class = class_new(gensym("mp3play~"), (t_newmethod)mp3play_tilde_new, + (t_method)mp3play_tilde_free, sizeof(t_mp3play_tilde), 0, 0); + class_addmethod(mp3play_tilde_class, (t_method)mp3play_tilde_dsp, gensym("dsp"), 0); + class_addmethod(mp3play_tilde_class, (t_method)mp3play_tilde_start, gensym("start"), 0); + class_addmethod(mp3play_tilde_class, (t_method)mp3play_tilde_ft1, + gensym("ft1"), A_FLOAT, 0); + class_addmethod(mp3play_tilde_class, (t_method)mp3play_tilde_stop, gensym("stop"), 0); + class_addmethod(mp3play_tilde_class, (t_method)mp3play_tilde_pause, gensym("pause"), 0); + class_addmethod(mp3play_tilde_class, (t_method)mp3play_tilde_open_again_at, gensym("open_again_at"), 0); + class_addmethod(mp3play_tilde_class, (t_method)mp3play_tilde_open, gensym("open"), A_DEFSYM, 0); + class_addmethod(mp3play_tilde_class, (t_method)mp3play_tilde_open_again, gensym("open_again"), 0); + class_addmethod(mp3play_tilde_class, (t_method)mp3play_tilde_open_at, gensym("open_at"), A_DEFSYM, 0); +// class_sethelpsymbol(mp3play_tilde_class, gensym("iemhelp/help-mp3play~")); + /*post("\nmp3play~ written by thomas musil & norbert math\nV 0.1 iem graz + austria 05 2000\n");*/ +} diff --git a/iem_mp3/test1.mp3 b/iem_mp3/test1.mp3 new file mode 100644 index 0000000..d8d3ee2 Binary files /dev/null and b/iem_mp3/test1.mp3 differ -- cgit v1.2.1