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author | Daniel Stenberg <daniel@haxx.se> | 2003-03-04 15:52:56 +0000 |
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committer | Daniel Stenberg <daniel@haxx.se> | 2003-03-04 15:52:56 +0000 |
commit | 3aeb55f3858a1eca0a3b9ba8f212e889d19c0194 (patch) | |
tree | e8477cc3c1d17c36067a14eab398ae27563b5759 /uisimulator/common/libmad/mad.h | |
parent | 2e638cf8d57d5d253925b55e58b5b019446b6bcc (diff) | |
download | rockbox-3aeb55f3858a1eca0a3b9ba8f212e889d19c0194.tar.gz rockbox-3aeb55f3858a1eca0a3b9ba8f212e889d19c0194.zip |
no one ever uses libmad, remove it from our CVS
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3382 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'uisimulator/common/libmad/mad.h')
-rw-r--r-- | uisimulator/common/libmad/mad.h | 932 |
1 files changed, 0 insertions, 932 deletions
diff --git a/uisimulator/common/libmad/mad.h b/uisimulator/common/libmad/mad.h deleted file mode 100644 index 7e5a5062e9..0000000000 --- a/uisimulator/common/libmad/mad.h +++ /dev/null | |||
@@ -1,932 +0,0 @@ | |||
1 | /* | ||
2 | * libmad - MPEG audio decoder library | ||
3 | * Copyright (C) 2000-2001 Robert Leslie | ||
4 | * | ||
5 | * This program is free software; you can redistribute it and/or modify | ||
6 | * it under the terms of the GNU General Public License as published by | ||
7 | * the Free Software Foundation; either version 2 of the License, or | ||
8 | * (at your option) any later version. | ||
9 | * | ||
10 | * This program is distributed in the hope that it will be useful, | ||
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
13 | * GNU General Public License for more details. | ||
14 | * | ||
15 | * You should have received a copy of the GNU General Public License | ||
16 | * along with this program; if not, write to the Free Software | ||
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
18 | * | ||
19 | * If you would like to negotiate alternate licensing terms, you may do | ||
20 | * so by contacting the author: Robert Leslie <rob@mars.org> | ||
21 | */ | ||
22 | |||
23 | # ifdef __cplusplus | ||
24 | extern "C" { | ||
25 | # endif | ||
26 | |||
27 | # define FPM_INTEL | ||
28 | |||
29 | # define SIZEOF_INT 4 | ||
30 | # define SIZEOF_LONG 4 | ||
31 | # define SIZEOF_LONG_LONG 8 | ||
32 | |||
33 | /* Id: version.h,v 1.20 2001/10/27 22:47:32 rob Exp */ | ||
34 | |||
35 | # ifndef LIBMAD_VERSION_H | ||
36 | # define LIBMAD_VERSION_H | ||
37 | |||
38 | # define MAD_VERSION_MAJOR 0 | ||
39 | # define MAD_VERSION_MINOR 14 | ||
40 | # define MAD_VERSION_PATCH 2 | ||
41 | # define MAD_VERSION_EXTRA " (beta)" | ||
42 | |||
43 | # define MAD_VERSION_STRINGIZE(str) #str | ||
44 | # define MAD_VERSION_STRING(num) MAD_VERSION_STRINGIZE(num) | ||
45 | |||
46 | # define MAD_VERSION MAD_VERSION_STRING(MAD_VERSION_MAJOR) "." \ | ||
47 | MAD_VERSION_STRING(MAD_VERSION_MINOR) "." \ | ||
48 | MAD_VERSION_STRING(MAD_VERSION_PATCH) \ | ||
49 | MAD_VERSION_EXTRA | ||
50 | |||
51 | # define MAD_PUBLISHYEAR "2000-2001" | ||
52 | # define MAD_AUTHOR "Robert Leslie" | ||
53 | # define MAD_EMAIL "rob@mars.org" | ||
54 | |||
55 | extern char const mad_version[]; | ||
56 | extern char const mad_copyright[]; | ||
57 | extern char const mad_author[]; | ||
58 | extern char const mad_build[]; | ||
59 | |||
60 | # endif | ||
61 | |||
62 | /* Id: fixed.h,v 1.30 2001/11/02 09:51:06 rob Exp */ | ||
63 | |||
64 | # ifndef LIBMAD_FIXED_H | ||
65 | # define LIBMAD_FIXED_H | ||
66 | |||
67 | # if SIZEOF_INT >= 4 | ||
68 | typedef signed int mad_fixed_t; | ||
69 | |||
70 | typedef signed int mad_fixed64hi_t; | ||
71 | typedef unsigned int mad_fixed64lo_t; | ||
72 | # else | ||
73 | typedef signed long mad_fixed_t; | ||
74 | |||
75 | typedef signed long mad_fixed64hi_t; | ||
76 | typedef unsigned long mad_fixed64lo_t; | ||
77 | # endif | ||
78 | |||
79 | # if defined(_MSC_VER) | ||
80 | # define mad_fixed64_t signed __int64 | ||
81 | # elif 1 || defined(__GNUC__) | ||
82 | # define mad_fixed64_t signed long long | ||
83 | # endif | ||
84 | |||
85 | # if defined(FPM_FLOAT) | ||
86 | typedef double mad_sample_t; | ||
87 | # else | ||
88 | typedef mad_fixed_t mad_sample_t; | ||
89 | # endif | ||
90 | |||
91 | /* | ||
92 | * Fixed-point format: 0xABBBBBBB | ||
93 | * A == whole part (sign + 3 bits) | ||
94 | * B == fractional part (28 bits) | ||
95 | * | ||
96 | * Values are signed two's complement, so the effective range is: | ||
97 | * 0x80000000 to 0x7fffffff | ||
98 | * -8.0 to +7.9999999962747097015380859375 | ||
99 | * | ||
100 | * The smallest representable value is: | ||
101 | * 0x00000001 == 0.0000000037252902984619140625 (i.e. about 3.725e-9) | ||
102 | * | ||
103 | * 28 bits of fractional accuracy represent about | ||
104 | * 8.6 digits of decimal accuracy. | ||
105 | * | ||
106 | * Fixed-point numbers can be added or subtracted as normal | ||
107 | * integers, but multiplication requires shifting the 64-bit result | ||
108 | * from 56 fractional bits back to 28 (and rounding.) | ||
109 | * | ||
110 | * Changing the definition of MAD_F_FRACBITS is only partially | ||
111 | * supported, and must be done with care. | ||
112 | */ | ||
113 | |||
114 | # define MAD_F_FRACBITS 28 | ||
115 | |||
116 | # if MAD_F_FRACBITS == 28 | ||
117 | # define MAD_F(x) ((mad_fixed_t) (x##L)) | ||
118 | # else | ||
119 | # if MAD_F_FRACBITS < 28 | ||
120 | # warning "MAD_F_FRACBITS < 28" | ||
121 | # define MAD_F(x) ((mad_fixed_t) \ | ||
122 | (((x##L) + \ | ||
123 | (1L << (28 - MAD_F_FRACBITS - 1))) >> \ | ||
124 | (28 - MAD_F_FRACBITS))) | ||
125 | # elif MAD_F_FRACBITS > 28 | ||
126 | # error "MAD_F_FRACBITS > 28 not currently supported" | ||
127 | # define MAD_F(x) ((mad_fixed_t) \ | ||
128 | ((x##L) << (MAD_F_FRACBITS - 28))) | ||
129 | # endif | ||
130 | # endif | ||
131 | |||
132 | # define MAD_F_MIN ((mad_fixed_t) -0x80000000L) | ||
133 | # define MAD_F_MAX ((mad_fixed_t) +0x7fffffffL) | ||
134 | |||
135 | # define MAD_F_ONE MAD_F(0x10000000) | ||
136 | |||
137 | # define mad_f_tofixed(x) ((mad_fixed_t) \ | ||
138 | ((x) * (double) (1L << MAD_F_FRACBITS) + 0.5)) | ||
139 | # define mad_f_todouble(x) ((double) \ | ||
140 | ((x) / (double) (1L << MAD_F_FRACBITS))) | ||
141 | |||
142 | # define mad_f_intpart(x) ((x) >> MAD_F_FRACBITS) | ||
143 | # define mad_f_fracpart(x) ((x) & ((1L << MAD_F_FRACBITS) - 1)) | ||
144 | /* (x should be positive) */ | ||
145 | |||
146 | # define mad_f_fromint(x) ((x) << MAD_F_FRACBITS) | ||
147 | |||
148 | # define mad_f_add(x, y) ((x) + (y)) | ||
149 | # define mad_f_sub(x, y) ((x) - (y)) | ||
150 | |||
151 | # if defined(FPM_FLOAT) | ||
152 | # error "FPM_FLOAT not yet supported" | ||
153 | |||
154 | # undef MAD_F | ||
155 | # define MAD_F(x) mad_f_todouble(x) | ||
156 | |||
157 | # define mad_f_mul(x, y) ((x) * (y)) | ||
158 | # define mad_f_scale64 | ||
159 | |||
160 | # undef ASO_ZEROCHECK | ||
161 | |||
162 | # elif defined(FPM_64BIT) | ||
163 | |||
164 | /* | ||
165 | * This version should be the most accurate if 64-bit types are supported by | ||
166 | * the compiler, although it may not be the most efficient. | ||
167 | */ | ||
168 | # if defined(OPT_ACCURACY) | ||
169 | # define mad_f_mul(x, y) \ | ||
170 | ((mad_fixed_t) \ | ||
171 | ((((mad_fixed64_t) (x) * (y)) + \ | ||
172 | (1L << (MAD_F_SCALEBITS - 1))) >> MAD_F_SCALEBITS)) | ||
173 | # else | ||
174 | # define mad_f_mul(x, y) \ | ||
175 | ((mad_fixed_t) (((mad_fixed64_t) (x) * (y)) >> MAD_F_SCALEBITS)) | ||
176 | # endif | ||
177 | |||
178 | # define MAD_F_SCALEBITS MAD_F_FRACBITS | ||
179 | |||
180 | /* --- Intel --------------------------------------------------------------- */ | ||
181 | |||
182 | # elif defined(FPM_INTEL) | ||
183 | |||
184 | # if defined(_MSC_VER) | ||
185 | # pragma warning(push) | ||
186 | # pragma warning(disable: 4035) /* no return value */ | ||
187 | static __forceinline | ||
188 | mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y) | ||
189 | { | ||
190 | enum { | ||
191 | fracbits = MAD_F_FRACBITS | ||
192 | }; | ||
193 | |||
194 | __asm { | ||
195 | mov eax, x | ||
196 | imul y | ||
197 | shrd eax, edx, fracbits | ||
198 | } | ||
199 | |||
200 | /* implicit return of eax */ | ||
201 | } | ||
202 | # pragma warning(pop) | ||
203 | |||
204 | # define mad_f_mul mad_f_mul_inline | ||
205 | # define mad_f_scale64 | ||
206 | # else | ||
207 | /* | ||
208 | * This Intel version is fast and accurate; the disposition of the least | ||
209 | * significant bit depends on OPT_ACCURACY via mad_f_scale64(). | ||
210 | */ | ||
211 | # define MAD_F_MLX(hi, lo, x, y) \ | ||
212 | asm ("imull %3" \ | ||
213 | : "=a" (lo), "=d" (hi) \ | ||
214 | : "%a" (x), "rm" (y) \ | ||
215 | : "cc") | ||
216 | |||
217 | # if defined(OPT_ACCURACY) | ||
218 | /* | ||
219 | * This gives best accuracy but is not very fast. | ||
220 | */ | ||
221 | # define MAD_F_MLA(hi, lo, x, y) \ | ||
222 | ({ mad_fixed64hi_t __hi; \ | ||
223 | mad_fixed64lo_t __lo; \ | ||
224 | MAD_F_MLX(__hi, __lo, (x), (y)); \ | ||
225 | asm ("addl %2,%0\n\t" \ | ||
226 | "adcl %3,%1" \ | ||
227 | : "=rm" (lo), "=rm" (hi) \ | ||
228 | : "r" (__lo), "r" (__hi), "0" (lo), "1" (hi) \ | ||
229 | : "cc"); \ | ||
230 | }) | ||
231 | # endif /* OPT_ACCURACY */ | ||
232 | |||
233 | # if defined(OPT_ACCURACY) | ||
234 | /* | ||
235 | * Surprisingly, this is faster than SHRD followed by ADC. | ||
236 | */ | ||
237 | # define mad_f_scale64(hi, lo) \ | ||
238 | ({ mad_fixed64hi_t __hi_; \ | ||
239 | mad_fixed64lo_t __lo_; \ | ||
240 | mad_fixed_t __result; \ | ||
241 | asm ("addl %4,%2\n\t" \ | ||
242 | "adcl %5,%3" \ | ||
243 | : "=rm" (__lo_), "=rm" (__hi_) \ | ||
244 | : "0" (lo), "1" (hi), \ | ||
245 | "ir" (1L << (MAD_F_SCALEBITS - 1)), "ir" (0) \ | ||
246 | : "cc"); \ | ||
247 | asm ("shrdl %3,%2,%1" \ | ||
248 | : "=rm" (__result) \ | ||
249 | : "0" (__lo_), "r" (__hi_), "I" (MAD_F_SCALEBITS) \ | ||
250 | : "cc"); \ | ||
251 | __result; \ | ||
252 | }) | ||
253 | # else | ||
254 | # define mad_f_scale64(hi, lo) \ | ||
255 | ({ mad_fixed_t __result; \ | ||
256 | asm ("shrdl %3,%2,%1" \ | ||
257 | : "=rm" (__result) \ | ||
258 | : "0" (lo), "r" (hi), "I" (MAD_F_SCALEBITS) \ | ||
259 | : "cc"); \ | ||
260 | __result; \ | ||
261 | }) | ||
262 | # endif /* OPT_ACCURACY */ | ||
263 | |||
264 | # define MAD_F_SCALEBITS MAD_F_FRACBITS | ||
265 | # endif | ||
266 | |||
267 | /* --- ARM ----------------------------------------------------------------- */ | ||
268 | |||
269 | # elif defined(FPM_ARM) | ||
270 | |||
271 | /* | ||
272 | * This ARM V4 version is as accurate as FPM_64BIT but much faster. The | ||
273 | * least significant bit is properly rounded at no CPU cycle cost! | ||
274 | */ | ||
275 | # if 1 | ||
276 | /* | ||
277 | * There's a bug somewhere, possibly in the compiler, that sometimes makes | ||
278 | * this necessary instead of the default implementation via MAD_F_MLX and | ||
279 | * mad_f_scale64. It may be related to the use (or lack) of | ||
280 | * -finline-functions and/or -fstrength-reduce. | ||
281 | * | ||
282 | * This is also apparently faster than MAD_F_MLX/mad_f_scale64. | ||
283 | */ | ||
284 | # define mad_f_mul(x, y) \ | ||
285 | ({ mad_fixed64hi_t __hi; \ | ||
286 | mad_fixed64lo_t __lo; \ | ||
287 | mad_fixed_t __result; \ | ||
288 | asm ("smull %0, %1, %3, %4\n\t" \ | ||
289 | "movs %0, %0, lsr %5\n\t" \ | ||
290 | "adc %2, %0, %1, lsl %6" \ | ||
291 | : "=&r" (__lo), "=&r" (__hi), "=r" (__result) \ | ||
292 | : "%r" (x), "r" (y), \ | ||
293 | "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \ | ||
294 | : "cc"); \ | ||
295 | __result; \ | ||
296 | }) | ||
297 | # endif | ||
298 | |||
299 | # define MAD_F_MLX(hi, lo, x, y) \ | ||
300 | asm ("smull %0, %1, %2, %3" \ | ||
301 | : "=&r" (lo), "=&r" (hi) \ | ||
302 | : "%r" (x), "r" (y)) | ||
303 | |||
304 | # define MAD_F_MLA(hi, lo, x, y) \ | ||
305 | asm ("smlal %0, %1, %2, %3" \ | ||
306 | : "+r" (lo), "+r" (hi) \ | ||
307 | : "%r" (x), "r" (y)) | ||
308 | |||
309 | # define MAD_F_MLN(hi, lo) \ | ||
310 | asm ("rsbs %0, %2, #0\n\t" \ | ||
311 | "rsc %1, %3, #0" \ | ||
312 | : "=r" (lo), "=r" (hi) \ | ||
313 | : "0" (lo), "1" (hi) \ | ||
314 | : "cc") | ||
315 | |||
316 | # define mad_f_scale64(hi, lo) \ | ||
317 | ({ mad_fixed_t __result; \ | ||
318 | asm ("movs %0, %1, lsr %3\n\t" \ | ||
319 | "adc %0, %0, %2, lsl %4" \ | ||
320 | : "=r" (__result) \ | ||
321 | : "r" (lo), "r" (hi), \ | ||
322 | "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \ | ||
323 | : "cc"); \ | ||
324 | __result; \ | ||
325 | }) | ||
326 | |||
327 | # define MAD_F_SCALEBITS MAD_F_FRACBITS | ||
328 | |||
329 | /* --- MIPS ---------------------------------------------------------------- */ | ||
330 | |||
331 | # elif defined(FPM_MIPS) | ||
332 | |||
333 | /* | ||
334 | * This MIPS version is fast and accurate; the disposition of the least | ||
335 | * significant bit depends on OPT_ACCURACY via mad_f_scale64(). | ||
336 | */ | ||
337 | # define MAD_F_MLX(hi, lo, x, y) \ | ||
338 | asm ("mult %2,%3" \ | ||
339 | : "=l" (lo), "=h" (hi) \ | ||
340 | : "%r" (x), "r" (y)) | ||
341 | |||
342 | # if defined(HAVE_MADD_ASM) | ||
343 | # define MAD_F_MLA(hi, lo, x, y) \ | ||
344 | asm ("madd %2,%3" \ | ||
345 | : "+l" (lo), "+h" (hi) \ | ||
346 | : "%r" (x), "r" (y)) | ||
347 | # elif defined(HAVE_MADD16_ASM) | ||
348 | /* | ||
349 | * This loses significant accuracy due to the 16-bit integer limit in the | ||
350 | * multiply/accumulate instruction. | ||
351 | */ | ||
352 | # define MAD_F_ML0(hi, lo, x, y) \ | ||
353 | asm ("mult %2,%3" \ | ||
354 | : "=l" (lo), "=h" (hi) \ | ||
355 | : "%r" ((x) >> 12), "r" ((y) >> 16)) | ||
356 | # define MAD_F_MLA(hi, lo, x, y) \ | ||
357 | asm ("madd16 %2,%3" \ | ||
358 | : "+l" (lo), "+h" (hi) \ | ||
359 | : "%r" ((x) >> 12), "r" ((y) >> 16)) | ||
360 | # define MAD_F_MLZ(hi, lo) ((mad_fixed_t) (lo)) | ||
361 | # endif | ||
362 | |||
363 | # if defined(OPT_SPEED) | ||
364 | # define mad_f_scale64(hi, lo) \ | ||
365 | ((mad_fixed_t) ((hi) << (32 - MAD_F_SCALEBITS))) | ||
366 | # define MAD_F_SCALEBITS MAD_F_FRACBITS | ||
367 | # endif | ||
368 | |||
369 | /* --- SPARC --------------------------------------------------------------- */ | ||
370 | |||
371 | # elif defined(FPM_SPARC) | ||
372 | |||
373 | /* | ||
374 | * This SPARC V8 version is fast and accurate; the disposition of the least | ||
375 | * significant bit depends on OPT_ACCURACY via mad_f_scale64(). | ||
376 | */ | ||
377 | # define MAD_F_MLX(hi, lo, x, y) \ | ||
378 | asm ("smul %2, %3, %0\n\t" \ | ||
379 | "rd %%y, %1" \ | ||
380 | : "=r" (lo), "=r" (hi) \ | ||
381 | : "%r" (x), "rI" (y)) | ||
382 | |||
383 | /* --- PowerPC ------------------------------------------------------------- */ | ||
384 | |||
385 | # elif defined(FPM_PPC) | ||
386 | |||
387 | /* | ||
388 | * This PowerPC version is tuned for the 4xx embedded processors. It is | ||
389 | * effectively a tuned version of FPM_64BIT. It is a little faster and just | ||
390 | * as accurate. The disposition of the least significant bit depends on | ||
391 | * OPT_ACCURACY via mad_f_scale64(). | ||
392 | */ | ||
393 | # define MAD_F_MLX(hi, lo, x, y) \ | ||
394 | asm ("mulhw %1, %2, %3\n\t" \ | ||
395 | "mullw %0, %2, %3" \ | ||
396 | : "=&r" (lo), "=&r" (hi) \ | ||
397 | : "%r" (x), "r" (y)) | ||
398 | |||
399 | # define MAD_F_MLA(hi, lo, x, y) \ | ||
400 | ({ mad_fixed64hi_t __hi; \ | ||
401 | mad_fixed64lo_t __lo; \ | ||
402 | MAD_F_MLX(__hi, __lo, (x), (y)); \ | ||
403 | asm ("addc %0, %2, %3\n\t" \ | ||
404 | "adde %1, %4, %5" \ | ||
405 | : "=r" (lo), "=r" (hi) \ | ||
406 | : "%r" (__lo), "0" (lo), "%r" (__hi), "1" (hi)); \ | ||
407 | }) | ||
408 | |||
409 | # if defined(OPT_ACCURACY) | ||
410 | /* | ||
411 | * This is accurate and ~2 - 2.5 times slower than the unrounded version. | ||
412 | * | ||
413 | * The __volatile__ improves the generated code by another 5% (fewer spills | ||
414 | * to memory); eventually they should be removed. | ||
415 | */ | ||
416 | # define mad_f_scale64(hi, lo) \ | ||
417 | ({ mad_fixed_t __result; \ | ||
418 | mad_fixed64hi_t __hi_; \ | ||
419 | mad_fixed64lo_t __lo_; \ | ||
420 | asm __volatile__ ("addc %0, %2, %4\n\t" \ | ||
421 | "addze %1, %3" \ | ||
422 | : "=r" (__lo_), "=r" (__hi_) \ | ||
423 | : "r" (lo), "r" (hi), "r" (1 << (MAD_F_SCALEBITS - 1))); \ | ||
424 | asm __volatile__ ("rlwinm %0, %2,32-%3,0,%3-1\n\t" \ | ||
425 | "rlwimi %0, %1,32-%3,%3,31" \ | ||
426 | : "=&r" (__result) \ | ||
427 | : "r" (__lo_), "r" (__hi_), "I" (MAD_F_SCALEBITS)); \ | ||
428 | __result; \ | ||
429 | }) | ||
430 | # else | ||
431 | # define mad_f_scale64(hi, lo) \ | ||
432 | ({ mad_fixed_t __result; \ | ||
433 | asm ("rlwinm %0, %2,32-%3,0,%3-1\n\t" \ | ||
434 | "rlwimi %0, %1,32-%3,%3,31" \ | ||
435 | : "=r" (__result) \ | ||
436 | : "r" (lo), "r" (hi), "I" (MAD_F_SCALEBITS)); \ | ||
437 | __result; \ | ||
438 | }) | ||
439 | # endif /* OPT_ACCURACY */ | ||
440 | |||
441 | # define MAD_F_SCALEBITS MAD_F_FRACBITS | ||
442 | |||
443 | /* --- Default ------------------------------------------------------------- */ | ||
444 | |||
445 | # elif defined(FPM_DEFAULT) | ||
446 | |||
447 | /* | ||
448 | * This version is the most portable but it loses significant accuracy. | ||
449 | * Furthermore, accuracy is biased against the second argument, so care | ||
450 | * should be taken when ordering operands. | ||
451 | * | ||
452 | * The scale factors are constant as this is not used with SSO. | ||
453 | * | ||
454 | * Pre-rounding is required to stay within the limits of compliance. | ||
455 | */ | ||
456 | # if defined(OPT_SPEED) | ||
457 | # define mad_f_mul(x, y) (((x) >> 12) * ((y) >> 16)) | ||
458 | # else | ||
459 | # define mad_f_mul(x, y) ((((x) + (1L << 11)) >> 12) * \ | ||
460 | (((y) + (1L << 15)) >> 16)) | ||
461 | # endif | ||
462 | |||
463 | /* ------------------------------------------------------------------------- */ | ||
464 | |||
465 | # else | ||
466 | # error "no FPM selected" | ||
467 | # endif | ||
468 | |||
469 | /* default implementations */ | ||
470 | |||
471 | # if !defined(mad_f_mul) | ||
472 | # define mad_f_mul(x, y) \ | ||
473 | ({ mad_fixed64hi_t __hi; \ | ||
474 | mad_fixed64lo_t __lo; \ | ||
475 | MAD_F_MLX(__hi, __lo, (x), (y)); \ | ||
476 | mad_f_scale64(__hi, __lo); \ | ||
477 | }) | ||
478 | # endif | ||
479 | |||
480 | # if !defined(MAD_F_MLA) | ||
481 | # define MAD_F_ML0(hi, lo, x, y) ((lo) = mad_f_mul((x), (y))) | ||
482 | # define MAD_F_MLA(hi, lo, x, y) ((lo) += mad_f_mul((x), (y))) | ||
483 | # define MAD_F_MLN(hi, lo) ((lo) = -(lo)) | ||
484 | # define MAD_F_MLZ(hi, lo) ((void) (hi), (mad_fixed_t) (lo)) | ||
485 | # endif | ||
486 | |||
487 | # if !defined(MAD_F_ML0) | ||
488 | # define MAD_F_ML0(hi, lo, x, y) MAD_F_MLX((hi), (lo), (x), (y)) | ||
489 | # endif | ||
490 | |||
491 | # if !defined(MAD_F_MLN) | ||
492 | # define MAD_F_MLN(hi, lo) ((hi) = ((lo) = -(lo)) ? ~(hi) : -(hi)) | ||
493 | # endif | ||
494 | |||
495 | # if !defined(MAD_F_MLZ) | ||
496 | # define MAD_F_MLZ(hi, lo) mad_f_scale64((hi), (lo)) | ||
497 | # endif | ||
498 | |||
499 | # if !defined(mad_f_scale64) | ||
500 | # if defined(OPT_ACCURACY) | ||
501 | # define mad_f_scale64(hi, lo) \ | ||
502 | ((((mad_fixed_t) \ | ||
503 | (((hi) << (32 - (MAD_F_SCALEBITS - 1))) | \ | ||
504 | ((lo) >> (MAD_F_SCALEBITS - 1)))) + 1) >> 1) | ||
505 | # else | ||
506 | # define mad_f_scale64(hi, lo) \ | ||
507 | ((mad_fixed_t) \ | ||
508 | (((hi) << (32 - MAD_F_SCALEBITS)) | \ | ||
509 | ((lo) >> MAD_F_SCALEBITS))) | ||
510 | # endif | ||
511 | # define MAD_F_SCALEBITS MAD_F_FRACBITS | ||
512 | # endif | ||
513 | |||
514 | /* miscellaneous C routines */ | ||
515 | |||
516 | mad_fixed_t mad_f_abs(mad_fixed_t); | ||
517 | |||
518 | # endif | ||
519 | |||
520 | /* Id: bit.h,v 1.8 2001/10/17 19:14:47 rob Exp */ | ||
521 | |||
522 | # ifndef LIBMAD_BIT_H | ||
523 | # define LIBMAD_BIT_H | ||
524 | |||
525 | struct mad_bitptr { | ||
526 | unsigned char const *byte; | ||
527 | unsigned short cache; | ||
528 | unsigned short left; | ||
529 | }; | ||
530 | |||
531 | void mad_bit_init(struct mad_bitptr *, unsigned char const *); | ||
532 | |||
533 | # define mad_bit_finish(bitptr) /* nothing */ | ||
534 | |||
535 | unsigned int mad_bit_length(struct mad_bitptr const *, | ||
536 | struct mad_bitptr const *); | ||
537 | |||
538 | # define mad_bit_bitsleft(bitptr) ((bitptr)->left) | ||
539 | unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *); | ||
540 | |||
541 | void mad_bit_skip(struct mad_bitptr *, unsigned int); | ||
542 | unsigned long mad_bit_read(struct mad_bitptr *, unsigned int); | ||
543 | void mad_bit_write(struct mad_bitptr *, unsigned int, unsigned long); | ||
544 | |||
545 | unsigned short mad_bit_crc(struct mad_bitptr, unsigned int, unsigned short); | ||
546 | |||
547 | # endif | ||
548 | |||
549 | /* Id: timer.h,v 1.12 2001/11/03 03:57:11 rob Exp */ | ||
550 | |||
551 | # ifndef LIBMAD_TIMER_H | ||
552 | # define LIBMAD_TIMER_H | ||
553 | |||
554 | typedef struct { | ||
555 | signed long seconds; /* whole seconds */ | ||
556 | unsigned long fraction; /* 1/MAD_TIMER_RESOLUTION seconds */ | ||
557 | } mad_timer_t; | ||
558 | |||
559 | extern mad_timer_t const mad_timer_zero; | ||
560 | |||
561 | # define MAD_TIMER_RESOLUTION 352800000UL | ||
562 | |||
563 | enum mad_units { | ||
564 | MAD_UNITS_HOURS = -2, | ||
565 | MAD_UNITS_MINUTES = -1, | ||
566 | MAD_UNITS_SECONDS = 0, | ||
567 | |||
568 | /* metric units */ | ||
569 | |||
570 | MAD_UNITS_DECISECONDS = 10, | ||
571 | MAD_UNITS_CENTISECONDS = 100, | ||
572 | MAD_UNITS_MILLISECONDS = 1000, | ||
573 | |||
574 | /* audio sample units */ | ||
575 | |||
576 | MAD_UNITS_8000_HZ = 8000, | ||
577 | MAD_UNITS_11025_HZ = 11025, | ||
578 | MAD_UNITS_12000_HZ = 12000, | ||
579 | |||
580 | MAD_UNITS_16000_HZ = 16000, | ||
581 | MAD_UNITS_22050_HZ = 22050, | ||
582 | MAD_UNITS_24000_HZ = 24000, | ||
583 | |||
584 | MAD_UNITS_32000_HZ = 32000, | ||
585 | MAD_UNITS_44100_HZ = 44100, | ||
586 | MAD_UNITS_48000_HZ = 48000, | ||
587 | |||
588 | /* video frame/field units */ | ||
589 | |||
590 | MAD_UNITS_24_FPS = 24, | ||
591 | MAD_UNITS_25_FPS = 25, | ||
592 | MAD_UNITS_30_FPS = 30, | ||
593 | MAD_UNITS_48_FPS = 48, | ||
594 | MAD_UNITS_50_FPS = 50, | ||
595 | MAD_UNITS_60_FPS = 60, | ||
596 | |||
597 | /* CD audio frames */ | ||
598 | |||
599 | MAD_UNITS_75_FPS = 75, | ||
600 | |||
601 | /* video drop-frame units */ | ||
602 | |||
603 | MAD_UNITS_23_976_FPS = -24, | ||
604 | MAD_UNITS_24_975_FPS = -25, | ||
605 | MAD_UNITS_29_97_FPS = -30, | ||
606 | MAD_UNITS_47_952_FPS = -48, | ||
607 | MAD_UNITS_49_95_FPS = -50, | ||
608 | MAD_UNITS_59_94_FPS = -60 | ||
609 | }; | ||
610 | |||
611 | # define mad_timer_reset(timer) ((void) (*(timer) = mad_timer_zero)) | ||
612 | |||
613 | int mad_timer_compare(mad_timer_t, mad_timer_t); | ||
614 | |||
615 | # define mad_timer_sign(timer) mad_timer_compare((timer), mad_timer_zero) | ||
616 | |||
617 | void mad_timer_negate(mad_timer_t *); | ||
618 | mad_timer_t mad_timer_abs(mad_timer_t); | ||
619 | |||
620 | void mad_timer_set(mad_timer_t *, unsigned long, unsigned long, unsigned long); | ||
621 | void mad_timer_add(mad_timer_t *, mad_timer_t); | ||
622 | void mad_timer_multiply(mad_timer_t *, signed long); | ||
623 | |||
624 | signed long mad_timer_count(mad_timer_t, enum mad_units); | ||
625 | unsigned long mad_timer_fraction(mad_timer_t, unsigned long); | ||
626 | void mad_timer_string(mad_timer_t, char *, char const *, | ||
627 | enum mad_units, enum mad_units, unsigned long); | ||
628 | |||
629 | # endif | ||
630 | |||
631 | /* Id: stream.h,v 1.15 2001/11/08 23:28:03 rob Exp */ | ||
632 | |||
633 | # ifndef LIBMAD_STREAM_H | ||
634 | # define LIBMAD_STREAM_H | ||
635 | |||
636 | # define MAD_BUFFER_GUARD 8 | ||
637 | # define MAD_BUFFER_MDLEN (511 + 2048 + MAD_BUFFER_GUARD) | ||
638 | |||
639 | enum mad_error { | ||
640 | MAD_ERROR_NONE = 0x0000, /* no error */ | ||
641 | |||
642 | MAD_ERROR_BUFLEN = 0x0001, /* input buffer too small (or EOF) */ | ||
643 | MAD_ERROR_BUFPTR = 0x0002, /* invalid (null) buffer pointer */ | ||
644 | |||
645 | MAD_ERROR_NOMEM = 0x0031, /* not enough memory */ | ||
646 | |||
647 | MAD_ERROR_LOSTSYNC = 0x0101, /* lost synchronization */ | ||
648 | MAD_ERROR_BADLAYER = 0x0102, /* reserved header layer value */ | ||
649 | MAD_ERROR_BADBITRATE = 0x0103, /* forbidden bitrate value */ | ||
650 | MAD_ERROR_BADSAMPLERATE = 0x0104, /* reserved sample frequency value */ | ||
651 | MAD_ERROR_BADEMPHASIS = 0x0105, /* reserved emphasis value */ | ||
652 | |||
653 | MAD_ERROR_BADCRC = 0x0201, /* CRC check failed */ | ||
654 | MAD_ERROR_BADBITALLOC = 0x0211, /* forbidden bit allocation value */ | ||
655 | MAD_ERROR_BADSCALEFACTOR = 0x0221, /* bad scalefactor index */ | ||
656 | MAD_ERROR_BADFRAMELEN = 0x0231, /* bad frame length */ | ||
657 | MAD_ERROR_BADBIGVALUES = 0x0232, /* bad big_values count */ | ||
658 | MAD_ERROR_BADBLOCKTYPE = 0x0233, /* reserved block_type */ | ||
659 | MAD_ERROR_BADSCFSI = 0x0234, /* bad scalefactor selection info */ | ||
660 | MAD_ERROR_BADDATAPTR = 0x0235, /* bad main_data_begin pointer */ | ||
661 | MAD_ERROR_BADPART3LEN = 0x0236, /* bad audio data length */ | ||
662 | MAD_ERROR_BADHUFFTABLE = 0x0237, /* bad Huffman table select */ | ||
663 | MAD_ERROR_BADHUFFDATA = 0x0238, /* Huffman data overrun */ | ||
664 | MAD_ERROR_BADSTEREO = 0x0239 /* incompatible block_type for JS */ | ||
665 | }; | ||
666 | |||
667 | # define MAD_RECOVERABLE(error) ((error) & 0xff00) | ||
668 | |||
669 | struct mad_stream { | ||
670 | unsigned char const *buffer; /* input bitstream buffer */ | ||
671 | unsigned char const *bufend; /* end of buffer */ | ||
672 | unsigned long skiplen; /* bytes to skip before next frame */ | ||
673 | |||
674 | int sync; /* stream sync found */ | ||
675 | unsigned long freerate; /* free bitrate (fixed) */ | ||
676 | |||
677 | unsigned char const *this_frame; /* start of current frame */ | ||
678 | unsigned char const *next_frame; /* start of next frame */ | ||
679 | struct mad_bitptr ptr; /* current processing bit pointer */ | ||
680 | |||
681 | struct mad_bitptr anc_ptr; /* ancillary bits pointer */ | ||
682 | unsigned int anc_bitlen; /* number of ancillary bits */ | ||
683 | |||
684 | unsigned char (*main_data)[MAD_BUFFER_MDLEN]; | ||
685 | /* Layer III main_data() */ | ||
686 | unsigned int md_len; /* bytes in main_data */ | ||
687 | |||
688 | int options; /* decoding options (see below) */ | ||
689 | enum mad_error error; /* error code (see above) */ | ||
690 | }; | ||
691 | |||
692 | enum { | ||
693 | MAD_OPTION_IGNORECRC = 0x0001, /* ignore CRC errors */ | ||
694 | MAD_OPTION_HALFSAMPLERATE = 0x0002 /* generate PCM at 1/2 sample rate */ | ||
695 | # if 0 /* not yet implemented */ | ||
696 | MAD_OPTION_LEFTCHANNEL = 0x0010, /* decode left channel only */ | ||
697 | MAD_OPTION_RIGHTCHANNEL = 0x0020, /* decode right channel only */ | ||
698 | MAD_OPTION_SINGLECHANNEL = 0x0030 /* combine channels */ | ||
699 | # endif | ||
700 | }; | ||
701 | |||
702 | void mad_stream_init(struct mad_stream *); | ||
703 | void mad_stream_finish(struct mad_stream *); | ||
704 | |||
705 | # define mad_stream_options(stream, opts) \ | ||
706 | ((void) ((stream)->options = (opts))) | ||
707 | |||
708 | void mad_stream_buffer(struct mad_stream *, | ||
709 | unsigned char const *, unsigned long); | ||
710 | void mad_stream_skip(struct mad_stream *, unsigned long); | ||
711 | |||
712 | int mad_stream_sync(struct mad_stream *); | ||
713 | |||
714 | char const *mad_stream_errorstr(struct mad_stream const *); | ||
715 | |||
716 | # endif | ||
717 | |||
718 | /* Id: frame.h,v 1.16 2001/10/17 19:13:41 rob Exp */ | ||
719 | |||
720 | # ifndef LIBMAD_FRAME_H | ||
721 | # define LIBMAD_FRAME_H | ||
722 | |||
723 | enum mad_layer { | ||
724 | MAD_LAYER_I = 1, /* Layer I */ | ||
725 | MAD_LAYER_II = 2, /* Layer II */ | ||
726 | MAD_LAYER_III = 3 /* Layer III */ | ||
727 | }; | ||
728 | |||
729 | enum mad_mode { | ||
730 | MAD_MODE_SINGLE_CHANNEL = 0, /* single channel */ | ||
731 | MAD_MODE_DUAL_CHANNEL = 1, /* dual channel */ | ||
732 | MAD_MODE_JOINT_STEREO = 2, /* joint (MS/intensity) stereo */ | ||
733 | MAD_MODE_STEREO = 3 /* normal LR stereo */ | ||
734 | }; | ||
735 | |||
736 | enum mad_emphasis { | ||
737 | MAD_EMPHASIS_NONE = 0, /* no emphasis */ | ||
738 | MAD_EMPHASIS_50_15_US = 1, /* 50/15 microseconds emphasis */ | ||
739 | MAD_EMPHASIS_CCITT_J_17 = 3 /* CCITT J.17 emphasis */ | ||
740 | }; | ||
741 | |||
742 | struct mad_header { | ||
743 | enum mad_layer layer; /* audio layer (1, 2, or 3) */ | ||
744 | enum mad_mode mode; /* channel mode (see above) */ | ||
745 | int mode_extension; /* additional mode info */ | ||
746 | enum mad_emphasis emphasis; /* de-emphasis to use (see above) */ | ||
747 | |||
748 | unsigned long bitrate; /* stream bitrate (bps) */ | ||
749 | unsigned int samplerate; /* sampling frequency (Hz) */ | ||
750 | |||
751 | unsigned short crc_check; /* frame CRC accumulator */ | ||
752 | unsigned short crc_target; /* final target CRC checksum */ | ||
753 | |||
754 | int flags; /* flags (see below) */ | ||
755 | int private_bits; /* private bits (see below) */ | ||
756 | |||
757 | mad_timer_t duration; /* audio playing time of frame */ | ||
758 | }; | ||
759 | |||
760 | struct mad_frame { | ||
761 | struct mad_header header; /* MPEG audio header */ | ||
762 | |||
763 | int options; /* decoding options (from stream) */ | ||
764 | |||
765 | mad_fixed_t sbsample[2][36][32]; /* synthesis subband filter samples */ | ||
766 | mad_fixed_t (*overlap)[2][32][18]; /* Layer III block overlap data */ | ||
767 | }; | ||
768 | |||
769 | # define MAD_NCHANNELS(header) ((header)->mode ? 2 : 1) | ||
770 | # define MAD_NSBSAMPLES(header) \ | ||
771 | ((header)->layer == MAD_LAYER_I ? 12 : \ | ||
772 | (((header)->layer == MAD_LAYER_III && \ | ||
773 | ((header)->flags & MAD_FLAG_LSF_EXT)) ? 18 : 36)) | ||
774 | |||
775 | enum { | ||
776 | MAD_FLAG_NPRIVATE_III = 0x0007, /* number of Layer III private bits */ | ||
777 | MAD_FLAG_INCOMPLETE = 0x0008, /* header but not data is decoded */ | ||
778 | |||
779 | MAD_FLAG_PROTECTION = 0x0010, /* frame has CRC protection */ | ||
780 | MAD_FLAG_COPYRIGHT = 0x0020, /* frame is copyright */ | ||
781 | MAD_FLAG_ORIGINAL = 0x0040, /* frame is original (else copy) */ | ||
782 | MAD_FLAG_PADDING = 0x0080, /* frame has additional slot */ | ||
783 | |||
784 | MAD_FLAG_I_STEREO = 0x0100, /* uses intensity joint stereo */ | ||
785 | MAD_FLAG_MS_STEREO = 0x0200, /* uses middle/side joint stereo */ | ||
786 | MAD_FLAG_FREEFORMAT = 0x0400, /* uses free format bitrate */ | ||
787 | |||
788 | MAD_FLAG_LSF_EXT = 0x1000, /* lower sampling freq. extension */ | ||
789 | MAD_FLAG_MC_EXT = 0x2000, /* multichannel audio extension */ | ||
790 | MAD_FLAG_MPEG_2_5_EXT = 0x4000 /* MPEG 2.5 (unofficial) extension */ | ||
791 | }; | ||
792 | |||
793 | enum { | ||
794 | MAD_PRIVATE_HEADER = 0x0100, /* header private bit */ | ||
795 | MAD_PRIVATE_III = 0x001f /* Layer III private bits (up to 5) */ | ||
796 | }; | ||
797 | |||
798 | void mad_header_init(struct mad_header *); | ||
799 | |||
800 | # define mad_header_finish(header) /* nothing */ | ||
801 | |||
802 | int mad_header_decode(struct mad_header *, struct mad_stream *); | ||
803 | |||
804 | void mad_frame_init(struct mad_frame *); | ||
805 | void mad_frame_finish(struct mad_frame *); | ||
806 | |||
807 | int mad_frame_decode(struct mad_frame *, struct mad_stream *); | ||
808 | |||
809 | void mad_frame_mute(struct mad_frame *); | ||
810 | |||
811 | # endif | ||
812 | |||
813 | /* Id: synth.h,v 1.11 2001/11/08 23:28:03 rob Exp */ | ||
814 | |||
815 | # ifndef LIBMAD_SYNTH_H | ||
816 | # define LIBMAD_SYNTH_H | ||
817 | |||
818 | struct mad_pcm { | ||
819 | unsigned int samplerate; /* sampling frequency (Hz) */ | ||
820 | unsigned short channels; /* number of channels */ | ||
821 | unsigned short length; /* number of samples per channel */ | ||
822 | mad_fixed_t samples[2][1152]; /* PCM output samples [ch][sample] */ | ||
823 | }; | ||
824 | |||
825 | struct mad_synth { | ||
826 | mad_fixed_t filter[2][2][2][16][8]; /* polyphase filterbank outputs */ | ||
827 | /* [ch][eo][peo][s][v] */ | ||
828 | |||
829 | unsigned int phase; /* current processing phase */ | ||
830 | |||
831 | struct mad_pcm pcm; /* PCM output */ | ||
832 | }; | ||
833 | |||
834 | /* single channel PCM selector */ | ||
835 | enum { | ||
836 | MAD_PCM_CHANNEL_SINGLE = 0 | ||
837 | }; | ||
838 | |||
839 | /* dual channel PCM selector */ | ||
840 | enum { | ||
841 | MAD_PCM_CHANNEL_DUAL_1 = 0, | ||
842 | MAD_PCM_CHANNEL_DUAL_2 = 1 | ||
843 | }; | ||
844 | |||
845 | /* stereo PCM selector */ | ||
846 | enum { | ||
847 | MAD_PCM_CHANNEL_STEREO_LEFT = 0, | ||
848 | MAD_PCM_CHANNEL_STEREO_RIGHT = 1 | ||
849 | }; | ||
850 | |||
851 | void mad_synth_init(struct mad_synth *); | ||
852 | |||
853 | # define mad_synth_finish(synth) /* nothing */ | ||
854 | |||
855 | void mad_synth_mute(struct mad_synth *); | ||
856 | |||
857 | void mad_synth_frame(struct mad_synth *, struct mad_frame const *); | ||
858 | |||
859 | # endif | ||
860 | |||
861 | /* Id: decoder.h,v 1.13 2001/11/03 03:57:11 rob Exp */ | ||
862 | |||
863 | # ifndef LIBMAD_DECODER_H | ||
864 | # define LIBMAD_DECODER_H | ||
865 | |||
866 | enum mad_decoder_mode { | ||
867 | MAD_DECODER_MODE_SYNC = 0, | ||
868 | MAD_DECODER_MODE_ASYNC | ||
869 | }; | ||
870 | |||
871 | enum mad_flow { | ||
872 | MAD_FLOW_CONTINUE = 0x0000, /* continue normally */ | ||
873 | MAD_FLOW_STOP = 0x0010, /* stop decoding normally */ | ||
874 | MAD_FLOW_BREAK = 0x0011, /* stop decoding and signal an error */ | ||
875 | MAD_FLOW_IGNORE = 0x0020 /* ignore the current frame */ | ||
876 | }; | ||
877 | |||
878 | struct mad_decoder { | ||
879 | enum mad_decoder_mode mode; | ||
880 | |||
881 | int options; | ||
882 | |||
883 | struct { | ||
884 | long pid; | ||
885 | int in; | ||
886 | int out; | ||
887 | } async; | ||
888 | |||
889 | struct { | ||
890 | struct mad_stream stream; | ||
891 | struct mad_frame frame; | ||
892 | struct mad_synth synth; | ||
893 | } *sync; | ||
894 | |||
895 | void *cb_data; | ||
896 | |||
897 | enum mad_flow (*input_func)(void *, struct mad_stream *); | ||
898 | enum mad_flow (*header_func)(void *, struct mad_header const *); | ||
899 | enum mad_flow (*filter_func)(void *, | ||
900 | struct mad_stream const *, struct mad_frame *); | ||
901 | enum mad_flow (*output_func)(void *, | ||
902 | struct mad_header const *, struct mad_pcm *); | ||
903 | enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *); | ||
904 | enum mad_flow (*message_func)(void *, void *, unsigned int *); | ||
905 | }; | ||
906 | |||
907 | void mad_decoder_init(struct mad_decoder *, void *, | ||
908 | enum mad_flow (*)(void *, struct mad_stream *), | ||
909 | enum mad_flow (*)(void *, struct mad_header const *), | ||
910 | enum mad_flow (*)(void *, | ||
911 | struct mad_stream const *, | ||
912 | struct mad_frame *), | ||
913 | enum mad_flow (*)(void *, | ||
914 | struct mad_header const *, | ||
915 | struct mad_pcm *), | ||
916 | enum mad_flow (*)(void *, | ||
917 | struct mad_stream *, | ||
918 | struct mad_frame *), | ||
919 | enum mad_flow (*)(void *, void *, unsigned int *)); | ||
920 | int mad_decoder_finish(struct mad_decoder *); | ||
921 | |||
922 | # define mad_decoder_options(decoder, opts) \ | ||
923 | ((void) ((decoder)->options = (opts))) | ||
924 | |||
925 | int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode); | ||
926 | int mad_decoder_message(struct mad_decoder *, void *, unsigned int *); | ||
927 | |||
928 | # endif | ||
929 | |||
930 | # ifdef __cplusplus | ||
931 | } | ||
932 | # endif | ||