1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
|
/*
* mpg123 defines
* used source: musicout.h from mpegaudio package
*/
#include <stdio.h>
#include <string.h>
#include <signal.h>
#ifndef WIN32
#include <sys/signal.h>
#include <unistd.h>
#endif
#include <math.h>
typedef unsigned char byte;
#ifdef OS2
#include <float.h>
#endif
#define MPG123_REMOTE
#ifdef HPUX
#define random rand
#define srandom srand
#endif
#define FRONTEND_NONE 0
#define FRONTEND_SAJBER 1
#define FRONTEND_TK3PLAY 2
#define FRONTEND_GENERIC 3
#define SKIP_JUNK 1
#ifdef _WIN32 /* Win32 Additions By Tony Million */
# 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
# define SIGUSR1 0
# define SIGCONT 0
# define SIGSTOP 0
# undef MPG123_REMOTE /* Get rid of this stuff for Win32 */
#endif
#include "xfermem.h"
#ifdef SUNOS
#define memmove(dst,src,size) bcopy(src,dst,size)
#endif
#ifdef REAL_IS_FLOAT
# define real float
#elif defined(REAL_IS_LONG_DOUBLE)
# define real long double
#elif defined(REAL_IS_FIXED)
# define real long
# define REAL_RADIX 15
# define REAL_FACTOR (32.0 * 1024.0)
# define REAL_PLUS_32767 ( 32767 << REAL_RADIX )
# define REAL_MINUS_32768 ( -32768 << REAL_RADIX )
# define DOUBLE_TO_REAL(x) ((int)((x) * REAL_FACTOR))
# define REAL_TO_SHORT(x) ((x) >> REAL_RADIX)
# define REAL_MUL(x, y) (((long long)(x) * (long long)(y)) >> REAL_RADIX)
#else
# define real double
#endif
#ifndef DOUBLE_TO_REAL
# define DOUBLE_TO_REAL(x) (x)
#endif
#ifndef REAL_TO_SHORT
# define REAL_TO_SHORT(x) (x)
#endif
#ifndef REAL_PLUS_32767
# define REAL_PLUS_32767 32767.0
#endif
#ifndef REAL_MINUS_32768
# define REAL_MINUS_32768 -32768.0
#endif
#ifndef REAL_MUL
# define REAL_MUL(x, y) ((x) * (y))
#endif
#ifdef __GNUC__
#define INLINE inline
#else
#define INLINE
#endif
#include "audio.h"
/* AUDIOBUFSIZE = n*64 with n=1,2,3 ... */
#define AUDIOBUFSIZE 16384
#define FALSE 0
#define TRUE 1
#define MAX_NAME_SIZE 81
#define SBLIMIT 32
#define SCALE_BLOCK 12
#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 */
#define MAXFRAMESIZE 4096
#define HDRCMPMASK 0xfffffd00
#define MAXOUTBURST 32768
/* Pre Shift fo 16 to 8 bit converter table */
#define AUSHIFT (3)
struct al_table
{
short bits;
short d;
};
struct frame {
struct al_table *alloc;
int (*synth)(real *,int,unsigned char *,int *);
int (*synth_mono)(real *,unsigned char *,int *);
#ifdef USE_3DNOW
void (*dct36)(real *,real *,real *,real *,real *);
#endif
int stereo;
int jsbound;
int single;
int II_sblimit;
int down_sample_sblimit;
int lsf;
int mpeg25;
int down_sample;
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 */
int padsize; /* */
int sideInfoSize; /* Layer3 sideInfo Header size */
/* FIXME: move this to another place */
unsigned long firsthead;
unsigned long thishead;
int freeformatsize;
};
#define VBR_TOC_SIZE 100
#define VBR_FRAMES_FLAG 0x0001
#define VBR_BYTES_FLAG 0x0002
#define VBR_TOC_FLAG 0x0004
#define VBR_SCALE_FLAG 0x0008
struct vbrHeader {
unsigned long flags;
unsigned long frames;
unsigned long bytes;
unsigned long scale;
unsigned char toc[100];
};
struct parameter {
int aggressive; /* renice to max. priority */
int shuffle; /* shuffle/random play */
int remote; /* remote operation */
int outmode; /* where to out the decoded sampels */
int quiet; /* shut up! */
int xterm_title; /* print filename in xterm title */
long usebuffer; /* second level buffer size */
int tryresync; /* resync stream after error */
int verbose; /* verbose level */
#ifdef TERM_CONTROL
int term_ctrl;
#endif
int force_mono;
int force_stereo;
int force_8bit;
long force_rate;
double pitch;
int down_sample;
int checkrange;
long doublespeed;
long halfspeed;
int force_reopen;
int stat_3dnow; /* automatic/force/force-off 3DNow! optimized code */
int test_3dnow;
int realtime;
char filename[256];
char *esdserver;
char *equalfile;
int enable_equalizer;
long outscale;
long startFrame;
int print_version;
};
struct bitstream_info {
int bitindex;
unsigned char *wordpointer;
};
struct mpstr {
int bsize;
int framesize;
int fsizeold;
struct frame fr;
/* int (*do_layer)(struct mpstr *,struct frame *fr,int,struct audio_info_struct *); */
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 bitstream_info bsi;
};
extern struct bitstream_info bsi;
struct reader {
int (*init)(struct reader *);
void (*close)(struct reader *);
int (*head_read)(struct reader *,unsigned long *newhead);
int (*head_shift)(struct reader *,unsigned long *head);
int (*skip_bytes)(struct reader *,int len);
int (*read_frame_body)(struct reader *,unsigned char *,int size);
int (*back_bytes)(struct reader *,int bytes);
int (*back_frame)(struct reader *,struct frame *,int num);
long (*tell)(struct reader *);
void (*rewind)(struct reader *);
long filelen;
long filepos;
int filept;
int flags;
unsigned char id3buf[128];
unsigned char *backbuf;
int mark;
int bufpos,bufstart,bufend;
int bufsize;
};
#define READER_FD_OPENED 0x1
#define READER_ID3TAG 0x2
extern struct reader *rd,readers[];
extern int halfspeed;
extern int buffer_fd[2];
extern txfermem *buffermem;
extern char *prgName, *prgVersion;
#ifndef NOXFERMEM
extern void buffer_loop(struct audio_info_struct *ai,sigset_t *oldsigset);
#endif
extern void readers_pushback_header(struct reader *rds,unsigned long aLong);
extern void readers_mark_pos(struct reader *rds);
extern void readers_goto_mark(struct reader *rds);
/* ------ Declarations from "httpget.c" ------ */
extern char *proxyurl;
extern unsigned long proxyip;
extern int http_open (const char *url);
extern char *httpauth;
/* ------ Declarations from "common.c" ------ */
int sync_stream(struct reader *rds,struct frame *fr,int flags,int *skipped);
extern void audio_flush(int, struct audio_info_struct *);
extern void (*catchsignal(int signum, void(*handler)()))();
extern void print_header(struct frame *);
extern void print_header_compact(struct frame *);
extern void print_id3_tag(unsigned char *buf);
extern int split_dir_file(const char *path, char **dname, char **fname);
extern unsigned int get1bit(struct bitstream_info *);
extern unsigned int getbits(struct bitstream_info *,int);
extern unsigned int getbits_fast(struct bitstream_info *,int);
extern void backbits(struct bitstream_info *,int);
extern int getbitoffset(struct bitstream_info *);
extern int getbyte(struct bitstream_info *);
extern void set_pointer(int,long);
extern unsigned char *pcm_sample;
extern int pcm_point;
extern int audiobufsize;
extern int OutputDescriptor;
struct 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 III_sideinfo
{
unsigned main_data_begin;
unsigned private_bits;
struct {
struct gr_info_s gr[2];
} ch[2];
};
extern struct reader *open_stream(const char *,int fd);
extern void read_frame_init (struct frame *fr);
extern int read_frame(struct reader *rd,struct frame *fr);
extern int play_frame(struct mpstr *mp,int init,struct frame *fr);
extern int do_layer3(struct mpstr *mp,struct frame *fr,int,struct audio_info_struct *);
extern int do_layer2(struct mpstr *mp,struct frame *fr,int,struct audio_info_struct *);
extern int do_layer1(struct mpstr *mp,struct frame *fr,int,struct audio_info_struct *);
extern void do_equalizer(real *bandPtr,int channel);
#ifdef PENTIUM_OPT
extern int synth_1to1_pent (real *,int,unsigned char *);
#endif
extern int synth_1to1 (real *,int,unsigned char *,int *);
extern int synth_1to1_8bit (real *,int,unsigned char *,int *);
extern int synth_1to1_mono (real *,unsigned char *,int *);
extern int synth_1to1_mono2stereo (real *,unsigned char *,int *);
extern int synth_1to1_8bit_mono (real *,unsigned char *,int *);
extern int synth_1to1_8bit_mono2stereo (real *,unsigned char *,int *);
extern int synth_2to1 (real *,int,unsigned char *,int *);
extern int synth_2to1_8bit (real *,int,unsigned char *,int *);
extern int synth_2to1_mono (real *,unsigned char *,int *);
extern int synth_2to1_mono2stereo (real *,unsigned char *,int *);
extern int synth_2to1_8bit_mono (real *,unsigned char *,int *);
extern int synth_2to1_8bit_mono2stereo (real *,unsigned char *,int *);
extern int synth_4to1 (real *,int,unsigned char *,int *);
extern int synth_4to1_8bit (real *,int,unsigned char *,int *);
extern int synth_4to1_mono (real *,unsigned char *,int *);
extern int synth_4to1_mono2stereo (real *,unsigned char *,int *);
extern int synth_4to1_8bit_mono (real *,unsigned char *,int *);
extern int synth_4to1_8bit_mono2stereo (real *,unsigned char *,int *);
extern int synth_ntom (real *,int,unsigned char *,int *);
extern int synth_ntom_8bit (real *,int,unsigned char *,int *);
extern int synth_ntom_mono (real *,unsigned char *,int *);
extern int synth_ntom_mono2stereo (real *,unsigned char *,int *);
extern int synth_ntom_8bit_mono (real *,unsigned char *,int *);
extern int synth_ntom_8bit_mono2stereo (real *,unsigned char *,int *);
extern void rewindNbits(int bits);
extern int hsstell(void);
extern void huffman_decoder(int ,int *);
extern void huffman_count1(int,int *);
extern void print_stat(struct reader *rd,struct frame *fr,int no,long buffsize,struct audio_info_struct *ai);
extern int get_songlen(struct reader *rd,struct frame *fr,int no);
extern void init_layer3(int);
extern void init_layer2(void);
extern void make_decode_tables(long scale);
extern void make_conv16to8_table(int);
extern void dct64(real *,real *,real *);
#ifdef USE_MMX
extern void dct64_MMX(short *a,short *b,real *c);
extern int synth_1to1_MMX(real *, int, short *, short *, int *);
#endif
extern void synth_ntom_set_step(long,long);
extern void control_generic(struct mpstr *,struct frame *fr);
extern void control_sajber(struct mpstr *,struct frame *fr);
extern void control_tk3play(struct mpstr *,struct frame *fr);
extern int cdr_open(struct audio_info_struct *ai, char *ame);
extern int au_open(struct audio_info_struct *ai, char *name);
extern int wav_open(struct audio_info_struct *ai, char *wavfilename);
extern int wav_write(unsigned char *buf,int len);
extern int cdr_close(void);
extern int au_close(void);
extern int wav_close(void);
extern int au_open(struct audio_info_struct *ai, char *aufilename);
extern int au_close(void);
extern int cdr_open(struct audio_info_struct *ai, char *cdrfilename);
extern int cdr_close(void);
extern int getVBRHeader(struct vbrHeader *head,unsigned char *buf,
struct frame *fr);
extern unsigned char *conv16to8;
extern long freqs[9];
extern real muls[27][64];
extern real decwin[512+32];
#ifndef USE_MMX
extern real *pnts[5];
#endif
extern real equalizer[2][32];
extern real equalizer_sum[2][32];
extern int equalizer_cnt;
extern struct audio_name audio_val2name[];
extern struct parameter param;
/* 486 optimizations */
#define FIR_BUFFER_SIZE 128
extern void dct64_486(int *a,int *b,real *c);
extern int synth_1to1_486(real *bandPtr,int channel,unsigned char *out,int nb_blocks);
/* 3DNow! optimizations */
#ifdef USE_3DNOW
extern int getcpuflags(void);
extern void dct36(real *,real *,real *,real *,real *);
extern void dct36_3dnow(real *,real *,real *,real *,real *);
extern int synth_1to1_3dnow(real *,int,unsigned char *,int *);
#endif
|
