Suga koubou / Mbed 2 deprecated i2s_audio_madplayer

streo mp3 player see: http://mbed.org/users/okini3939/notebook/I2S_AUDIO

Dependencies:   FatFileSystemCpp I2SSlave TLV320 mbed

Fork of madplayer by Andreas Grün

madplayer/mad.h@5:50015f4868e2, 2013-07-26 (annotated)

Committer:
okini3939
Date:
Fri Jul 26 15:02:49 2013 +0000
Revision:
5:50015f4868e2
Parent:
4:30b2cf4a8ee2 
fix

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Gruenfrosch 0:7627c79db971 1 /*
Gruenfrosch 0:7627c79db971 2 * libmad - MPEG audio decoder library
Gruenfrosch 0:7627c79db971 3 * Copyright (C) 2000-2004 Underbit Technologies, Inc.
Gruenfrosch 0:7627c79db971 4 *
Gruenfrosch 0:7627c79db971 5 * This program is free software; you can redistribute it and/or modify
Gruenfrosch 0:7627c79db971 6 * it under the terms of the GNU General Public License as published by
Gruenfrosch 0:7627c79db971 7 * the Free Software Foundation; either version 2 of the License, or
Gruenfrosch 0:7627c79db971 8 * (at your option) any later version.
Gruenfrosch 0:7627c79db971 9 *
Gruenfrosch 0:7627c79db971 10 * This program is distributed in the hope that it will be useful,
Gruenfrosch 0:7627c79db971 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Gruenfrosch 0:7627c79db971 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Gruenfrosch 0:7627c79db971 13 * GNU General Public License for more details.
Gruenfrosch 0:7627c79db971 14 *
Gruenfrosch 0:7627c79db971 15 * You should have received a copy of the GNU General Public License
Gruenfrosch 0:7627c79db971 16 * along with this program; if not, write to the Free Software
Gruenfrosch 0:7627c79db971 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Gruenfrosch 0:7627c79db971 18 *
Gruenfrosch 0:7627c79db971 19 * If you would like to negotiate alternate licensing terms, you may do
Gruenfrosch 0:7627c79db971 20 * so by contacting: Underbit Technologies, Inc. <info@underbit.com>
Gruenfrosch 0:7627c79db971 21 */
Gruenfrosch 0:7627c79db971 22
Gruenfrosch 0:7627c79db971 23 # ifdef __cplusplus
Gruenfrosch 0:7627c79db971 24 extern "C" {
Gruenfrosch 0:7627c79db971 25 # endif
Gruenfrosch 0:7627c79db971 26
Gruenfrosch 0:7627c79db971 27 # define FPM_INTEL
Gruenfrosch 0:7627c79db971 28
Gruenfrosch 0:7627c79db971 29
Gruenfrosch 0:7627c79db971 30
Gruenfrosch 0:7627c79db971 31 # define SIZEOF_INT 4
Gruenfrosch 0:7627c79db971 32 # define SIZEOF_LONG 4
Gruenfrosch 0:7627c79db971 33 # define SIZEOF_LONG_LONG 8
Gruenfrosch 0:7627c79db971 34
Gruenfrosch 0:7627c79db971 35
Gruenfrosch 0:7627c79db971 36 /* Id: version.h,v 1.26 2004/01/23 09:41:33 rob Exp */
Gruenfrosch 0:7627c79db971 37
Gruenfrosch 0:7627c79db971 38 # ifndef LIBMAD_VERSION_H
Gruenfrosch 0:7627c79db971 39 # define LIBMAD_VERSION_H
Gruenfrosch 0:7627c79db971 40
Gruenfrosch 0:7627c79db971 41 # define MAD_VERSION_MAJOR 0
Gruenfrosch 0:7627c79db971 42 # define MAD_VERSION_MINOR 15
Gruenfrosch 0:7627c79db971 43 # define MAD_VERSION_PATCH 1
Gruenfrosch 0:7627c79db971 44 # define MAD_VERSION_EXTRA " (beta)"
Gruenfrosch 0:7627c79db971 45
Gruenfrosch 0:7627c79db971 46 # define MAD_VERSION_STRINGIZE(str) #str
Gruenfrosch 0:7627c79db971 47 # define MAD_VERSION_STRING(num) MAD_VERSION_STRINGIZE(num)
Gruenfrosch 0:7627c79db971 48
Gruenfrosch 0:7627c79db971 49 # define MAD_VERSION MAD_VERSION_STRING(MAD_VERSION_MAJOR) "." \
Gruenfrosch 0:7627c79db971 50 MAD_VERSION_STRING(MAD_VERSION_MINOR) "." \
Gruenfrosch 0:7627c79db971 51 MAD_VERSION_STRING(MAD_VERSION_PATCH) \
Gruenfrosch 0:7627c79db971 52 MAD_VERSION_EXTRA
Gruenfrosch 0:7627c79db971 53
Gruenfrosch 0:7627c79db971 54 # define MAD_PUBLISHYEAR "2000-2004"
Gruenfrosch 0:7627c79db971 55 # define MAD_AUTHOR "Underbit Technologies, Inc."
Gruenfrosch 0:7627c79db971 56 # define MAD_EMAIL "info@underbit.com"
Gruenfrosch 0:7627c79db971 57
Gruenfrosch 0:7627c79db971 58 extern char const mad_version[];
Gruenfrosch 0:7627c79db971 59 extern char const mad_copyright[];
Gruenfrosch 0:7627c79db971 60 extern char const mad_author[];
Gruenfrosch 0:7627c79db971 61 extern char const mad_build[];
Gruenfrosch 0:7627c79db971 62
Gruenfrosch 0:7627c79db971 63 # endif
Gruenfrosch 0:7627c79db971 64
Gruenfrosch 0:7627c79db971 65 /* Id: fixed.h,v 1.38 2004/02/17 02:02:03 rob Exp */
Gruenfrosch 0:7627c79db971 66
Gruenfrosch 0:7627c79db971 67 # ifndef LIBMAD_FIXED_H
Gruenfrosch 0:7627c79db971 68 # define LIBMAD_FIXED_H
Gruenfrosch 0:7627c79db971 69
Gruenfrosch 0:7627c79db971 70 # if SIZEOF_INT >= 4
Gruenfrosch 0:7627c79db971 71 typedef signed int mad_fixed_t;
Gruenfrosch 0:7627c79db971 72
Gruenfrosch 0:7627c79db971 73 typedef signed int mad_fixed64hi_t;
Gruenfrosch 0:7627c79db971 74 typedef unsigned int mad_fixed64lo_t;
Gruenfrosch 0:7627c79db971 75 # else
Gruenfrosch 0:7627c79db971 76 typedef signed long mad_fixed_t;
Gruenfrosch 0:7627c79db971 77
Gruenfrosch 0:7627c79db971 78 typedef signed long mad_fixed64hi_t;
Gruenfrosch 0:7627c79db971 79 typedef unsigned long mad_fixed64lo_t;
Gruenfrosch 0:7627c79db971 80 # endif
Gruenfrosch 0:7627c79db971 81
Gruenfrosch 0:7627c79db971 82 # if defined(_MSC_VER)
Gruenfrosch 0:7627c79db971 83 # define mad_fixed64_t signed __int64
Gruenfrosch 0:7627c79db971 84 # elif 1 || defined(__GNUC__)
Gruenfrosch 0:7627c79db971 85 # define mad_fixed64_t signed long long
Gruenfrosch 0:7627c79db971 86 # endif
Gruenfrosch 0:7627c79db971 87
Gruenfrosch 0:7627c79db971 88 # if defined(FPM_FLOAT)
Gruenfrosch 0:7627c79db971 89 typedef double mad_sample_t;
Gruenfrosch 0:7627c79db971 90 # else
Gruenfrosch 0:7627c79db971 91 typedef mad_fixed_t mad_sample_t;
Gruenfrosch 0:7627c79db971 92 # endif
Gruenfrosch 0:7627c79db971 93
Gruenfrosch 0:7627c79db971 94 /*
Gruenfrosch 0:7627c79db971 95 * Fixed-point format: 0xABBBBBBB
Gruenfrosch 0:7627c79db971 96 * A == whole part (sign + 3 bits)
Gruenfrosch 0:7627c79db971 97 * B == fractional part (28 bits)
Gruenfrosch 0:7627c79db971 98 *
Gruenfrosch 0:7627c79db971 99 * Values are signed two's complement, so the effective range is:
Gruenfrosch 0:7627c79db971 100 * 0x80000000 to 0x7fffffff
Gruenfrosch 0:7627c79db971 101 * -8.0 to +7.9999999962747097015380859375
Gruenfrosch 0:7627c79db971 102 *
Gruenfrosch 0:7627c79db971 103 * The smallest representable value is:
Gruenfrosch 0:7627c79db971 104 * 0x00000001 == 0.0000000037252902984619140625 (i.e. about 3.725e-9)
Gruenfrosch 0:7627c79db971 105 *
Gruenfrosch 0:7627c79db971 106 * 28 bits of fractional accuracy represent about
Gruenfrosch 0:7627c79db971 107 * 8.6 digits of decimal accuracy.
Gruenfrosch 0:7627c79db971 108 *
Gruenfrosch 0:7627c79db971 109 * Fixed-point numbers can be added or subtracted as normal
Gruenfrosch 0:7627c79db971 110 * integers, but multiplication requires shifting the 64-bit result
Gruenfrosch 0:7627c79db971 111 * from 56 fractional bits back to 28 (and rounding.)
Gruenfrosch 0:7627c79db971 112 *
Gruenfrosch 0:7627c79db971 113 * Changing the definition of MAD_F_FRACBITS is only partially
Gruenfrosch 0:7627c79db971 114 * supported, and must be done with care.
Gruenfrosch 0:7627c79db971 115 */
Gruenfrosch 0:7627c79db971 116
Gruenfrosch 0:7627c79db971 117 # define MAD_F_FRACBITS 28
Gruenfrosch 0:7627c79db971 118
Gruenfrosch 0:7627c79db971 119 # if MAD_F_FRACBITS == 28
Gruenfrosch 0:7627c79db971 120 # define MAD_F(x) ((mad_fixed_t) (x##L))
Gruenfrosch 0:7627c79db971 121 # else
Gruenfrosch 0:7627c79db971 122 # if MAD_F_FRACBITS < 28
Gruenfrosch 0:7627c79db971 123 # warning "MAD_F_FRACBITS < 28"
Gruenfrosch 0:7627c79db971 124 # define MAD_F(x) ((mad_fixed_t) \
Gruenfrosch 0:7627c79db971 125 (((x##L) + \
Gruenfrosch 0:7627c79db971 126 (1L << (28 - MAD_F_FRACBITS - 1))) >> \
Gruenfrosch 0:7627c79db971 127 (28 - MAD_F_FRACBITS)))
Gruenfrosch 0:7627c79db971 128 # elif MAD_F_FRACBITS > 28
Gruenfrosch 0:7627c79db971 129 # error "MAD_F_FRACBITS > 28 not currently supported"
Gruenfrosch 0:7627c79db971 130 # define MAD_F(x) ((mad_fixed_t) \
Gruenfrosch 0:7627c79db971 131 ((x##L) << (MAD_F_FRACBITS - 28)))
Gruenfrosch 0:7627c79db971 132 # endif
Gruenfrosch 0:7627c79db971 133 # endif
Gruenfrosch 0:7627c79db971 134
Gruenfrosch 0:7627c79db971 135 # define MAD_F_MIN ((mad_fixed_t) -0x80000000L)
Gruenfrosch 0:7627c79db971 136 # define MAD_F_MAX ((mad_fixed_t) +0x7fffffffL)
Gruenfrosch 0:7627c79db971 137
Gruenfrosch 0:7627c79db971 138 # define MAD_F_ONE MAD_F(0x10000000)
Gruenfrosch 0:7627c79db971 139
Gruenfrosch 0:7627c79db971 140 # define mad_f_tofixed(x) ((mad_fixed_t) \
Gruenfrosch 0:7627c79db971 141 ((x) * (double) (1L << MAD_F_FRACBITS) + 0.5))
Gruenfrosch 0:7627c79db971 142 # define mad_f_todouble(x) ((double) \
Gruenfrosch 0:7627c79db971 143 ((x) / (double) (1L << MAD_F_FRACBITS)))
Gruenfrosch 0:7627c79db971 144
Gruenfrosch 0:7627c79db971 145 # define mad_f_intpart(x) ((x) >> MAD_F_FRACBITS)
Gruenfrosch 0:7627c79db971 146 # define mad_f_fracpart(x) ((x) & ((1L << MAD_F_FRACBITS) - 1))
Gruenfrosch 0:7627c79db971 147 /* (x should be positive) */
Gruenfrosch 0:7627c79db971 148
Gruenfrosch 0:7627c79db971 149 # define mad_f_fromint(x) ((x) << MAD_F_FRACBITS)
Gruenfrosch 0:7627c79db971 150
Gruenfrosch 0:7627c79db971 151 # define mad_f_add(x, y) ((x) + (y))
Gruenfrosch 0:7627c79db971 152 # define mad_f_sub(x, y) ((x) - (y))
Gruenfrosch 0:7627c79db971 153
Gruenfrosch 0:7627c79db971 154 # if defined(FPM_FLOAT)
Gruenfrosch 0:7627c79db971 155 # error "FPM_FLOAT not yet supported"
Gruenfrosch 0:7627c79db971 156
Gruenfrosch 0:7627c79db971 157 # undef MAD_F
Gruenfrosch 0:7627c79db971 158 # define MAD_F(x) mad_f_todouble(x)
Gruenfrosch 0:7627c79db971 159
Gruenfrosch 0:7627c79db971 160 # define mad_f_mul(x, y) ((x) * (y))
Gruenfrosch 0:7627c79db971 161 # define mad_f_scale64
Gruenfrosch 0:7627c79db971 162
Gruenfrosch 0:7627c79db971 163 # undef ASO_ZEROCHECK
Gruenfrosch 0:7627c79db971 164
Gruenfrosch 0:7627c79db971 165 # elif defined(FPM_64BIT)
Gruenfrosch 0:7627c79db971 166
Gruenfrosch 0:7627c79db971 167 /*
Gruenfrosch 0:7627c79db971 168 * This version should be the most accurate if 64-bit types are supported by
Gruenfrosch 0:7627c79db971 169 * the compiler, although it may not be the most efficient.
Gruenfrosch 0:7627c79db971 170 */
Gruenfrosch 0:7627c79db971 171 # if defined(OPT_ACCURACY)
Gruenfrosch 0:7627c79db971 172 # define mad_f_mul(x, y) \
Gruenfrosch 0:7627c79db971 173 ((mad_fixed_t) \
Gruenfrosch 0:7627c79db971 174 ((((mad_fixed64_t) (x) * (y)) + \
Gruenfrosch 0:7627c79db971 175 (1L << (MAD_F_SCALEBITS - 1))) >> MAD_F_SCALEBITS))
Gruenfrosch 0:7627c79db971 176 # else
Gruenfrosch 0:7627c79db971 177 # define mad_f_mul(x, y) \
Gruenfrosch 0:7627c79db971 178 ((mad_fixed_t) (((mad_fixed64_t) (x) * (y)) >> MAD_F_SCALEBITS))
Gruenfrosch 0:7627c79db971 179 # endif
Gruenfrosch 0:7627c79db971 180
Gruenfrosch 0:7627c79db971 181 # define MAD_F_SCALEBITS MAD_F_FRACBITS
Gruenfrosch 0:7627c79db971 182
Gruenfrosch 0:7627c79db971 183 /* --- Intel --------------------------------------------------------------- */
Gruenfrosch 0:7627c79db971 184
Gruenfrosch 0:7627c79db971 185 # elif defined(FPM_INTEL)
Gruenfrosch 0:7627c79db971 186
Gruenfrosch 0:7627c79db971 187 # if defined(_MSC_VER)
Gruenfrosch 0:7627c79db971 188 # pragma warning(push)
Gruenfrosch 0:7627c79db971 189 # pragma warning(disable: 4035) /* no return value */
Gruenfrosch 0:7627c79db971 190 static __forceinline
Gruenfrosch 0:7627c79db971 191 mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
Gruenfrosch 0:7627c79db971 192 {
Gruenfrosch 0:7627c79db971 193 enum {
Gruenfrosch 0:7627c79db971 194 fracbits = MAD_F_FRACBITS
Gruenfrosch 0:7627c79db971 195 };
Gruenfrosch 0:7627c79db971 196
Gruenfrosch 0:7627c79db971 197 __asm {
Gruenfrosch 0:7627c79db971 198 mov eax, x
Gruenfrosch 0:7627c79db971 199 imul y
Gruenfrosch 0:7627c79db971 200 shrd eax, edx, fracbits
Gruenfrosch 0:7627c79db971 201 }
Gruenfrosch 0:7627c79db971 202
Gruenfrosch 0:7627c79db971 203 /* implicit return of eax */
Gruenfrosch 0:7627c79db971 204 }
Gruenfrosch 0:7627c79db971 205 # pragma warning(pop)
Gruenfrosch 0:7627c79db971 206
Gruenfrosch 0:7627c79db971 207 # define mad_f_mul mad_f_mul_inline
Gruenfrosch 0:7627c79db971 208 # define mad_f_scale64
Gruenfrosch 0:7627c79db971 209 # else
Gruenfrosch 0:7627c79db971 210 /*
Gruenfrosch 0:7627c79db971 211 * This Intel version is fast and accurate; the disposition of the least
Gruenfrosch 0:7627c79db971 212 * significant bit depends on OPT_ACCURACY via mad_f_scale64().
Gruenfrosch 0:7627c79db971 213 */
Gruenfrosch 0:7627c79db971 214 # define MAD_F_MLX(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 215 asm ("imull %3" \
Gruenfrosch 0:7627c79db971 216 : "=a" (lo), "=d" (hi) \
Gruenfrosch 0:7627c79db971 217 : "%a" (x), "rm" (y) \
Gruenfrosch 0:7627c79db971 218 : "cc")
Gruenfrosch 0:7627c79db971 219
Gruenfrosch 0:7627c79db971 220 # if defined(OPT_ACCURACY)
Gruenfrosch 0:7627c79db971 221 /*
Gruenfrosch 0:7627c79db971 222 * This gives best accuracy but is not very fast.
Gruenfrosch 0:7627c79db971 223 */
Gruenfrosch 0:7627c79db971 224 # define MAD_F_MLA(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 225 ({ mad_fixed64hi_t __hi; \
Gruenfrosch 0:7627c79db971 226 mad_fixed64lo_t __lo; \
Gruenfrosch 0:7627c79db971 227 MAD_F_MLX(__hi, __lo, (x), (y)); \
Gruenfrosch 0:7627c79db971 228 asm ("addl %2,%0\n\t" \
Gruenfrosch 0:7627c79db971 229 "adcl %3,%1" \
Gruenfrosch 0:7627c79db971 230 : "=rm" (lo), "=rm" (hi) \
Gruenfrosch 0:7627c79db971 231 : "r" (__lo), "r" (__hi), "0" (lo), "1" (hi) \
Gruenfrosch 0:7627c79db971 232 : "cc"); \
Gruenfrosch 0:7627c79db971 233 })
Gruenfrosch 0:7627c79db971 234 # endif /* OPT_ACCURACY */
Gruenfrosch 0:7627c79db971 235
Gruenfrosch 0:7627c79db971 236 # if defined(OPT_ACCURACY)
Gruenfrosch 0:7627c79db971 237 /*
Gruenfrosch 0:7627c79db971 238 * Surprisingly, this is faster than SHRD followed by ADC.
Gruenfrosch 0:7627c79db971 239 */
Gruenfrosch 0:7627c79db971 240 # define mad_f_scale64(hi, lo) \
Gruenfrosch 0:7627c79db971 241 ({ mad_fixed64hi_t __hi_; \
Gruenfrosch 0:7627c79db971 242 mad_fixed64lo_t __lo_; \
Gruenfrosch 0:7627c79db971 243 mad_fixed_t __result; \
Gruenfrosch 0:7627c79db971 244 asm ("addl %4,%2\n\t" \
Gruenfrosch 0:7627c79db971 245 "adcl %5,%3" \
Gruenfrosch 0:7627c79db971 246 : "=rm" (__lo_), "=rm" (__hi_) \
Gruenfrosch 0:7627c79db971 247 : "0" (lo), "1" (hi), \
Gruenfrosch 0:7627c79db971 248 "ir" (1L << (MAD_F_SCALEBITS - 1)), "ir" (0) \
Gruenfrosch 0:7627c79db971 249 : "cc"); \
Gruenfrosch 0:7627c79db971 250 asm ("shrdl %3,%2,%1" \
Gruenfrosch 0:7627c79db971 251 : "=rm" (__result) \
Gruenfrosch 0:7627c79db971 252 : "0" (__lo_), "r" (__hi_), "I" (MAD_F_SCALEBITS) \
Gruenfrosch 0:7627c79db971 253 : "cc"); \
Gruenfrosch 0:7627c79db971 254 __result; \
Gruenfrosch 0:7627c79db971 255 })
Gruenfrosch 0:7627c79db971 256 # elif defined(OPT_INTEL)
Gruenfrosch 0:7627c79db971 257 /*
Gruenfrosch 0:7627c79db971 258 * Alternate Intel scaling that may or may not perform better.
Gruenfrosch 0:7627c79db971 259 */
Gruenfrosch 0:7627c79db971 260 # define mad_f_scale64(hi, lo) \
Gruenfrosch 0:7627c79db971 261 ({ mad_fixed_t __result; \
Gruenfrosch 0:7627c79db971 262 asm ("shrl %3,%1\n\t" \
Gruenfrosch 0:7627c79db971 263 "shll %4,%2\n\t" \
Gruenfrosch 0:7627c79db971 264 "orl %2,%1" \
Gruenfrosch 0:7627c79db971 265 : "=rm" (__result) \
Gruenfrosch 0:7627c79db971 266 : "0" (lo), "r" (hi), \
Gruenfrosch 0:7627c79db971 267 "I" (MAD_F_SCALEBITS), "I" (32 - MAD_F_SCALEBITS) \
Gruenfrosch 0:7627c79db971 268 : "cc"); \
Gruenfrosch 0:7627c79db971 269 __result; \
Gruenfrosch 0:7627c79db971 270 })
Gruenfrosch 0:7627c79db971 271 # else
Gruenfrosch 0:7627c79db971 272 # define mad_f_scale64(hi, lo) \
Gruenfrosch 0:7627c79db971 273 ({ mad_fixed_t __result; \
Gruenfrosch 0:7627c79db971 274 asm ("shrdl %3,%2,%1" \
Gruenfrosch 0:7627c79db971 275 : "=rm" (__result) \
Gruenfrosch 0:7627c79db971 276 : "0" (lo), "r" (hi), "I" (MAD_F_SCALEBITS) \
Gruenfrosch 0:7627c79db971 277 : "cc"); \
Gruenfrosch 0:7627c79db971 278 __result; \
Gruenfrosch 0:7627c79db971 279 })
Gruenfrosch 0:7627c79db971 280 # endif /* OPT_ACCURACY */
Gruenfrosch 0:7627c79db971 281
Gruenfrosch 0:7627c79db971 282 # define MAD_F_SCALEBITS MAD_F_FRACBITS
Gruenfrosch 0:7627c79db971 283 # endif
Gruenfrosch 0:7627c79db971 284
Gruenfrosch 0:7627c79db971 285 /* --- ARM ----------------------------------------------------------------- */
Gruenfrosch 0:7627c79db971 286
Gruenfrosch 0:7627c79db971 287 # elif defined(FPM_ARM)
Gruenfrosch 0:7627c79db971 288
Gruenfrosch 0:7627c79db971 289 /*
Gruenfrosch 0:7627c79db971 290 * This ARM V4 version is as accurate as FPM_64BIT but much faster. The
Gruenfrosch 0:7627c79db971 291 * least significant bit is properly rounded at no CPU cycle cost!
Gruenfrosch 0:7627c79db971 292 */
Gruenfrosch 0:7627c79db971 293 # if 1
Gruenfrosch 0:7627c79db971 294 /*
Gruenfrosch 0:7627c79db971 295 * This is faster than the default implementation via MAD_F_MLX() and
Gruenfrosch 0:7627c79db971 296 * mad_f_scale64().
Gruenfrosch 0:7627c79db971 297 */
Gruenfrosch 0:7627c79db971 298 # define mad_f_mul(x, y) \
Gruenfrosch 0:7627c79db971 299 ({ mad_fixed64hi_t __hi; \
Gruenfrosch 0:7627c79db971 300 mad_fixed64lo_t __lo; \
Gruenfrosch 0:7627c79db971 301 mad_fixed_t __result; \
Gruenfrosch 0:7627c79db971 302 asm ("smull %0, %1, %3, %4\n\t" \
Gruenfrosch 0:7627c79db971 303 "movs %0, %0, lsr %5\n\t" \
Gruenfrosch 0:7627c79db971 304 "adc %2, %0, %1, lsl %6" \
Gruenfrosch 0:7627c79db971 305 : "=&r" (__lo), "=&r" (__hi), "=r" (__result) \
Gruenfrosch 0:7627c79db971 306 : "%r" (x), "r" (y), \
Gruenfrosch 0:7627c79db971 307 "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \
Gruenfrosch 0:7627c79db971 308 : "cc"); \
Gruenfrosch 0:7627c79db971 309 __result; \
Gruenfrosch 0:7627c79db971 310 })
Gruenfrosch 0:7627c79db971 311 # endif
Gruenfrosch 0:7627c79db971 312
Gruenfrosch 0:7627c79db971 313 # define MAD_F_MLX(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 314 asm ("smull %0, %1, %2, %3" \
Gruenfrosch 0:7627c79db971 315 : "=&r" (lo), "=&r" (hi) \
Gruenfrosch 0:7627c79db971 316 : "%r" (x), "r" (y))
Gruenfrosch 0:7627c79db971 317
Gruenfrosch 0:7627c79db971 318 # define MAD_F_MLA(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 319 asm ("smlal %0, %1, %2, %3" \
Gruenfrosch 0:7627c79db971 320 : "+r" (lo), "+r" (hi) \
Gruenfrosch 0:7627c79db971 321 : "%r" (x), "r" (y))
Gruenfrosch 0:7627c79db971 322
Gruenfrosch 0:7627c79db971 323 # define MAD_F_MLN(hi, lo) \
Gruenfrosch 0:7627c79db971 324 asm ("rsbs %0, %2, #0\n\t" \
Gruenfrosch 0:7627c79db971 325 "rsc %1, %3, #0" \
Gruenfrosch 0:7627c79db971 326 : "=r" (lo), "=r" (hi) \
Gruenfrosch 0:7627c79db971 327 : "0" (lo), "1" (hi) \
Gruenfrosch 0:7627c79db971 328 : "cc")
Gruenfrosch 0:7627c79db971 329
Gruenfrosch 0:7627c79db971 330 # define mad_f_scale64(hi, lo) \
Gruenfrosch 0:7627c79db971 331 ({ mad_fixed_t __result; \
Gruenfrosch 0:7627c79db971 332 asm ("movs %0, %1, lsr %3\n\t" \
Gruenfrosch 0:7627c79db971 333 "adc %0, %0, %2, lsl %4" \
Gruenfrosch 0:7627c79db971 334 : "=&r" (__result) \
Gruenfrosch 0:7627c79db971 335 : "r" (lo), "r" (hi), \
Gruenfrosch 0:7627c79db971 336 "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \
Gruenfrosch 0:7627c79db971 337 : "cc"); \
Gruenfrosch 0:7627c79db971 338 __result; \
Gruenfrosch 0:7627c79db971 339 })
Gruenfrosch 0:7627c79db971 340
Gruenfrosch 0:7627c79db971 341 # define MAD_F_SCALEBITS MAD_F_FRACBITS
Gruenfrosch 0:7627c79db971 342
Gruenfrosch 0:7627c79db971 343 /* --- MIPS ---------------------------------------------------------------- */
Gruenfrosch 0:7627c79db971 344
Gruenfrosch 0:7627c79db971 345 # elif defined(FPM_MIPS)
Gruenfrosch 0:7627c79db971 346
Gruenfrosch 0:7627c79db971 347 /*
Gruenfrosch 0:7627c79db971 348 * This MIPS version is fast and accurate; the disposition of the least
Gruenfrosch 0:7627c79db971 349 * significant bit depends on OPT_ACCURACY via mad_f_scale64().
Gruenfrosch 0:7627c79db971 350 */
Gruenfrosch 0:7627c79db971 351 # define MAD_F_MLX(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 352 asm ("mult %2,%3" \
Gruenfrosch 0:7627c79db971 353 : "=l" (lo), "=h" (hi) \
Gruenfrosch 0:7627c79db971 354 : "%r" (x), "r" (y))
Gruenfrosch 0:7627c79db971 355
Gruenfrosch 0:7627c79db971 356 # if defined(HAVE_MADD_ASM)
Gruenfrosch 0:7627c79db971 357 # define MAD_F_MLA(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 358 asm ("madd %2,%3" \
Gruenfrosch 0:7627c79db971 359 : "+l" (lo), "+h" (hi) \
Gruenfrosch 0:7627c79db971 360 : "%r" (x), "r" (y))
Gruenfrosch 0:7627c79db971 361 # elif defined(HAVE_MADD16_ASM)
Gruenfrosch 0:7627c79db971 362 /*
Gruenfrosch 0:7627c79db971 363 * This loses significant accuracy due to the 16-bit integer limit in the
Gruenfrosch 0:7627c79db971 364 * multiply/accumulate instruction.
Gruenfrosch 0:7627c79db971 365 */
Gruenfrosch 0:7627c79db971 366 # define MAD_F_ML0(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 367 asm ("mult %2,%3" \
Gruenfrosch 0:7627c79db971 368 : "=l" (lo), "=h" (hi) \
Gruenfrosch 0:7627c79db971 369 : "%r" ((x) >> 12), "r" ((y) >> 16))
Gruenfrosch 0:7627c79db971 370 # define MAD_F_MLA(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 371 asm ("madd16 %2,%3" \
Gruenfrosch 0:7627c79db971 372 : "+l" (lo), "+h" (hi) \
Gruenfrosch 0:7627c79db971 373 : "%r" ((x) >> 12), "r" ((y) >> 16))
Gruenfrosch 0:7627c79db971 374 # define MAD_F_MLZ(hi, lo) ((mad_fixed_t) (lo))
Gruenfrosch 0:7627c79db971 375 # endif
Gruenfrosch 0:7627c79db971 376
Gruenfrosch 0:7627c79db971 377 # if defined(OPT_SPEED)
Gruenfrosch 0:7627c79db971 378 # define mad_f_scale64(hi, lo) \
Gruenfrosch 0:7627c79db971 379 ((mad_fixed_t) ((hi) << (32 - MAD_F_SCALEBITS)))
Gruenfrosch 0:7627c79db971 380 # define MAD_F_SCALEBITS MAD_F_FRACBITS
Gruenfrosch 0:7627c79db971 381 # endif
Gruenfrosch 0:7627c79db971 382
Gruenfrosch 0:7627c79db971 383 /* --- SPARC --------------------------------------------------------------- */
Gruenfrosch 0:7627c79db971 384
Gruenfrosch 0:7627c79db971 385 # elif defined(FPM_SPARC)
Gruenfrosch 0:7627c79db971 386
Gruenfrosch 0:7627c79db971 387 /*
Gruenfrosch 0:7627c79db971 388 * This SPARC V8 version is fast and accurate; the disposition of the least
Gruenfrosch 0:7627c79db971 389 * significant bit depends on OPT_ACCURACY via mad_f_scale64().
Gruenfrosch 0:7627c79db971 390 */
Gruenfrosch 0:7627c79db971 391 # define MAD_F_MLX(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 392 asm ("smul %2, %3, %0\n\t" \
Gruenfrosch 0:7627c79db971 393 "rd %%y, %1" \
Gruenfrosch 0:7627c79db971 394 : "=r" (lo), "=r" (hi) \
Gruenfrosch 0:7627c79db971 395 : "%r" (x), "rI" (y))
Gruenfrosch 0:7627c79db971 396
Gruenfrosch 0:7627c79db971 397 /* --- PowerPC ------------------------------------------------------------- */
Gruenfrosch 0:7627c79db971 398
Gruenfrosch 0:7627c79db971 399 # elif defined(FPM_PPC)
Gruenfrosch 0:7627c79db971 400
Gruenfrosch 0:7627c79db971 401 /*
Gruenfrosch 0:7627c79db971 402 * This PowerPC version is fast and accurate; the disposition of the least
Gruenfrosch 0:7627c79db971 403 * significant bit depends on OPT_ACCURACY via mad_f_scale64().
Gruenfrosch 0:7627c79db971 404 */
Gruenfrosch 0:7627c79db971 405 # define MAD_F_MLX(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 406 do { \
Gruenfrosch 0:7627c79db971 407 asm ("mullw %0,%1,%2" \
Gruenfrosch 0:7627c79db971 408 : "=r" (lo) \
Gruenfrosch 0:7627c79db971 409 : "%r" (x), "r" (y)); \
Gruenfrosch 0:7627c79db971 410 asm ("mulhw %0,%1,%2" \
Gruenfrosch 0:7627c79db971 411 : "=r" (hi) \
Gruenfrosch 0:7627c79db971 412 : "%r" (x), "r" (y)); \
Gruenfrosch 0:7627c79db971 413 } \
Gruenfrosch 0:7627c79db971 414 while (0)
Gruenfrosch 0:7627c79db971 415
Gruenfrosch 0:7627c79db971 416 # if defined(OPT_ACCURACY)
Gruenfrosch 0:7627c79db971 417 /*
Gruenfrosch 0:7627c79db971 418 * This gives best accuracy but is not very fast.
Gruenfrosch 0:7627c79db971 419 */
Gruenfrosch 0:7627c79db971 420 # define MAD_F_MLA(hi, lo, x, y) \
Gruenfrosch 0:7627c79db971 421 ({ mad_fixed64hi_t __hi; \
Gruenfrosch 0:7627c79db971 422 mad_fixed64lo_t __lo; \
Gruenfrosch 0:7627c79db971 423 MAD_F_MLX(__hi, __lo, (x), (y)); \
Gruenfrosch 0:7627c79db971 424 asm ("addc %0,%2,%3\n\t" \
Gruenfrosch 0:7627c79db971 425 "adde %1,%4,%5" \
Gruenfrosch 0:7627c79db971 426 : "=r" (lo), "=r" (hi) \
Gruenfrosch 0:7627c79db971 427 : "%r" (lo), "r" (__lo), \
Gruenfrosch 0:7627c79db971 428 "%r" (hi), "r" (__hi) \
Gruenfrosch 0:7627c79db971 429 : "xer"); \
Gruenfrosch 0:7627c79db971 430 })
Gruenfrosch 0:7627c79db971 431 # endif
Gruenfrosch 0:7627c79db971 432
Gruenfrosch 0:7627c79db971 433 # if defined(OPT_ACCURACY)
Gruenfrosch 0:7627c79db971 434 /*
Gruenfrosch 0:7627c79db971 435 * This is slower than the truncating version below it.
Gruenfrosch 0:7627c79db971 436 */
Gruenfrosch 0:7627c79db971 437 # define mad_f_scale64(hi, lo) \
Gruenfrosch 0:7627c79db971 438 ({ mad_fixed_t __result, __round; \
Gruenfrosch 0:7627c79db971 439 asm ("rotrwi %0,%1,%2" \
Gruenfrosch 0:7627c79db971 440 : "=r" (__result) \
Gruenfrosch 0:7627c79db971 441 : "r" (lo), "i" (MAD_F_SCALEBITS)); \
Gruenfrosch 0:7627c79db971 442 asm ("extrwi %0,%1,1,0" \
Gruenfrosch 0:7627c79db971 443 : "=r" (__round) \
Gruenfrosch 0:7627c79db971 444 : "r" (__result)); \
Gruenfrosch 0:7627c79db971 445 asm ("insrwi %0,%1,%2,0" \
Gruenfrosch 0:7627c79db971 446 : "+r" (__result) \
Gruenfrosch 0:7627c79db971 447 : "r" (hi), "i" (MAD_F_SCALEBITS)); \
Gruenfrosch 0:7627c79db971 448 asm ("add %0,%1,%2" \
Gruenfrosch 0:7627c79db971 449 : "=r" (__result) \
Gruenfrosch 0:7627c79db971 450 : "%r" (__result), "r" (__round)); \
Gruenfrosch 0:7627c79db971 451 __result; \
Gruenfrosch 0:7627c79db971 452 })
Gruenfrosch 0:7627c79db971 453 # else
Gruenfrosch 0:7627c79db971 454 # define mad_f_scale64(hi, lo) \
Gruenfrosch 0:7627c79db971 455 ({ mad_fixed_t __result; \
Gruenfrosch 0:7627c79db971 456 asm ("rotrwi %0,%1,%2" \
Gruenfrosch 0:7627c79db971 457 : "=r" (__result) \
Gruenfrosch 0:7627c79db971 458 : "r" (lo), "i" (MAD_F_SCALEBITS)); \
Gruenfrosch 0:7627c79db971 459 asm ("insrwi %0,%1,%2,0" \
Gruenfrosch 0:7627c79db971 460 : "+r" (__result) \
Gruenfrosch 0:7627c79db971 461 : "r" (hi), "i" (MAD_F_SCALEBITS)); \
Gruenfrosch 0:7627c79db971 462 __result; \
Gruenfrosch 0:7627c79db971 463 })
Gruenfrosch 0:7627c79db971 464 # endif
Gruenfrosch 0:7627c79db971 465
Gruenfrosch 0:7627c79db971 466 # define MAD_F_SCALEBITS MAD_F_FRACBITS
Gruenfrosch 0:7627c79db971 467
Gruenfrosch 0:7627c79db971 468 /* --- Default ------------------------------------------------------------- */
Gruenfrosch 0:7627c79db971 469
Gruenfrosch 0:7627c79db971 470 # elif defined(FPM_DEFAULT)
Gruenfrosch 0:7627c79db971 471
Gruenfrosch 0:7627c79db971 472 /*
Gruenfrosch 0:7627c79db971 473 * This version is the most portable but it loses significant accuracy.
Gruenfrosch 0:7627c79db971 474 * Furthermore, accuracy is biased against the second argument, so care
Gruenfrosch 0:7627c79db971 475 * should be taken when ordering operands.
Gruenfrosch 0:7627c79db971 476 *
Gruenfrosch 0:7627c79db971 477 * The scale factors are constant as this is not used with SSO.
Gruenfrosch 0:7627c79db971 478 *
Gruenfrosch 0:7627c79db971 479 * Pre-rounding is required to stay within the limits of compliance.
Gruenfrosch 0:7627c79db971 480 */
Gruenfrosch 0:7627c79db971 481 # if defined(OPT_SPEED)
Gruenfrosch 0:7627c79db971 482 # define mad_f_mul(x, y) (((x) >> 12) * ((y) >> 16))
Gruenfrosch 0:7627c79db971 483 # else
Gruenfrosch 0:7627c79db971 484 # define mad_f_mul(x, y) ((((x) + (1L << 11)) >> 12) * \
Gruenfrosch 0:7627c79db971 485 (((y) + (1L << 15)) >> 16))
Gruenfrosch 0:7627c79db971 486 # endif
Gruenfrosch 0:7627c79db971 487
Gruenfrosch 0:7627c79db971 488 /* ------------------------------------------------------------------------- */
Gruenfrosch 0:7627c79db971 489
Gruenfrosch 0:7627c79db971 490 # else
Gruenfrosch 0:7627c79db971 491 # error "no FPM selected"
Gruenfrosch 0:7627c79db971 492 # endif
Gruenfrosch 0:7627c79db971 493
Gruenfrosch 0:7627c79db971 494 /* default implementations */
Gruenfrosch 0:7627c79db971 495
Gruenfrosch 0:7627c79db971 496 # if !defined(mad_f_mul)
Gruenfrosch 0:7627c79db971 497 # define mad_f_mul(x, y) \
Gruenfrosch 0:7627c79db971 498 ({ register mad_fixed64hi_t __hi; \
Gruenfrosch 0:7627c79db971 499 register mad_fixed64lo_t __lo; \
Gruenfrosch 0:7627c79db971 500 MAD_F_MLX(__hi, __lo, (x), (y)); \
Gruenfrosch 0:7627c79db971 501 mad_f_scale64(__hi, __lo); \
Gruenfrosch 0:7627c79db971 502 })
Gruenfrosch 0:7627c79db971 503 # endif
Gruenfrosch 0:7627c79db971 504
Gruenfrosch 0:7627c79db971 505 # if !defined(MAD_F_MLA)
Gruenfrosch 0:7627c79db971 506 # define MAD_F_ML0(hi, lo, x, y) ((lo) = mad_f_mul((x), (y)))
Gruenfrosch 0:7627c79db971 507 # define MAD_F_MLA(hi, lo, x, y) ((lo) += mad_f_mul((x), (y)))
Gruenfrosch 0:7627c79db971 508 # define MAD_F_MLN(hi, lo) ((lo) = -(lo))
Gruenfrosch 0:7627c79db971 509 # define MAD_F_MLZ(hi, lo) ((void) (hi), (mad_fixed_t) (lo))
Gruenfrosch 0:7627c79db971 510 # endif
Gruenfrosch 0:7627c79db971 511
Gruenfrosch 0:7627c79db971 512 # if !defined(MAD_F_ML0)
Gruenfrosch 0:7627c79db971 513 # define MAD_F_ML0(hi, lo, x, y) MAD_F_MLX((hi), (lo), (x), (y))
Gruenfrosch 0:7627c79db971 514 # endif
Gruenfrosch 0:7627c79db971 515
Gruenfrosch 0:7627c79db971 516 # if !defined(MAD_F_MLN)
Gruenfrosch 0:7627c79db971 517 # define MAD_F_MLN(hi, lo) ((hi) = ((lo) = -(lo)) ? ~(hi) : -(hi))
Gruenfrosch 0:7627c79db971 518 # endif
Gruenfrosch 0:7627c79db971 519
Gruenfrosch 0:7627c79db971 520 # if !defined(MAD_F_MLZ)
Gruenfrosch 0:7627c79db971 521 # define MAD_F_MLZ(hi, lo) mad_f_scale64((hi), (lo))
Gruenfrosch 0:7627c79db971 522 # endif
Gruenfrosch 0:7627c79db971 523
Gruenfrosch 0:7627c79db971 524 # if !defined(mad_f_scale64)
Gruenfrosch 0:7627c79db971 525 # if defined(OPT_ACCURACY)
Gruenfrosch 0:7627c79db971 526 # define mad_f_scale64(hi, lo) \
Gruenfrosch 0:7627c79db971 527 ((((mad_fixed_t) \
Gruenfrosch 0:7627c79db971 528 (((hi) << (32 - (MAD_F_SCALEBITS - 1))) | \
Gruenfrosch 0:7627c79db971 529 ((lo) >> (MAD_F_SCALEBITS - 1)))) + 1) >> 1)
Gruenfrosch 0:7627c79db971 530 # else
Gruenfrosch 0:7627c79db971 531 # define mad_f_scale64(hi, lo) \
Gruenfrosch 0:7627c79db971 532 ((mad_fixed_t) \
Gruenfrosch 0:7627c79db971 533 (((hi) << (32 - MAD_F_SCALEBITS)) | \
Gruenfrosch 0:7627c79db971 534 ((lo) >> MAD_F_SCALEBITS)))
Gruenfrosch 0:7627c79db971 535 # endif
Gruenfrosch 0:7627c79db971 536 # define MAD_F_SCALEBITS MAD_F_FRACBITS
Gruenfrosch 0:7627c79db971 537 # endif
Gruenfrosch 0:7627c79db971 538
Gruenfrosch 0:7627c79db971 539 /* C routines */
Gruenfrosch 0:7627c79db971 540
Gruenfrosch 0:7627c79db971 541 mad_fixed_t mad_f_abs(mad_fixed_t);
Gruenfrosch 0:7627c79db971 542 mad_fixed_t mad_f_div(mad_fixed_t, mad_fixed_t);
Gruenfrosch 0:7627c79db971 543
Gruenfrosch 0:7627c79db971 544 # endif
Gruenfrosch 0:7627c79db971 545
Gruenfrosch 0:7627c79db971 546 /* Id: bit.h,v 1.12 2004/01/23 09:41:32 rob Exp */
Gruenfrosch 0:7627c79db971 547
Gruenfrosch 0:7627c79db971 548 # ifndef LIBMAD_BIT_H
Gruenfrosch 0:7627c79db971 549 # define LIBMAD_BIT_H
Gruenfrosch 0:7627c79db971 550
Gruenfrosch 0:7627c79db971 551 struct mad_bitptr {
Gruenfrosch 0:7627c79db971 552 unsigned char const *byte;
Gruenfrosch 0:7627c79db971 553 unsigned short cache;
Gruenfrosch 0:7627c79db971 554 unsigned short left;
Gruenfrosch 0:7627c79db971 555 };
Gruenfrosch 0:7627c79db971 556
Gruenfrosch 0:7627c79db971 557 void mad_bit_init(struct mad_bitptr *, unsigned char const *);
Gruenfrosch 0:7627c79db971 558
Gruenfrosch 0:7627c79db971 559 # define mad_bit_finish(bitptr) /* nothing */
Gruenfrosch 0:7627c79db971 560
Gruenfrosch 0:7627c79db971 561 unsigned int mad_bit_length(struct mad_bitptr const *,
Gruenfrosch 0:7627c79db971 562 struct mad_bitptr const *);
Gruenfrosch 0:7627c79db971 563
Gruenfrosch 0:7627c79db971 564 # define mad_bit_bitsleft(bitptr) ((bitptr)->left)
Gruenfrosch 0:7627c79db971 565 unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *);
Gruenfrosch 0:7627c79db971 566
Gruenfrosch 0:7627c79db971 567 void mad_bit_skip(struct mad_bitptr *, unsigned int);
Gruenfrosch 0:7627c79db971 568 unsigned long mad_bit_read(struct mad_bitptr *, unsigned int);
Gruenfrosch 0:7627c79db971 569 void mad_bit_write(struct mad_bitptr *, unsigned int, unsigned long);
Gruenfrosch 0:7627c79db971 570
Gruenfrosch 0:7627c79db971 571 unsigned short mad_bit_crc(struct mad_bitptr, unsigned int, unsigned short);
Gruenfrosch 0:7627c79db971 572
Gruenfrosch 0:7627c79db971 573 # endif
Gruenfrosch 0:7627c79db971 574
Gruenfrosch 0:7627c79db971 575 /* Id: timer.h,v 1.16 2004/01/23 09:41:33 rob Exp */
Gruenfrosch 0:7627c79db971 576
Gruenfrosch 0:7627c79db971 577 # ifndef LIBMAD_TIMER_H
Gruenfrosch 0:7627c79db971 578 # define LIBMAD_TIMER_H
Gruenfrosch 0:7627c79db971 579
Gruenfrosch 0:7627c79db971 580 typedef struct {
Gruenfrosch 0:7627c79db971 581 signed long seconds; /* whole seconds */
Gruenfrosch 0:7627c79db971 582 unsigned long fraction; /* 1/MAD_TIMER_RESOLUTION seconds */
Gruenfrosch 0:7627c79db971 583 } mad_timer_t;
Gruenfrosch 0:7627c79db971 584
Gruenfrosch 0:7627c79db971 585 extern mad_timer_t const mad_timer_zero;
Gruenfrosch 0:7627c79db971 586
Gruenfrosch 0:7627c79db971 587 # define MAD_TIMER_RESOLUTION 352800000UL
Gruenfrosch 0:7627c79db971 588
Gruenfrosch 0:7627c79db971 589 enum mad_units {
Gruenfrosch 0:7627c79db971 590 MAD_UNITS_HOURS = -2,
Gruenfrosch 0:7627c79db971 591 MAD_UNITS_MINUTES = -1,
Gruenfrosch 0:7627c79db971 592 MAD_UNITS_SECONDS = 0,
Gruenfrosch 0:7627c79db971 593
Gruenfrosch 0:7627c79db971 594 /* metric units */
Gruenfrosch 0:7627c79db971 595
Gruenfrosch 0:7627c79db971 596 MAD_UNITS_DECISECONDS = 10,
Gruenfrosch 0:7627c79db971 597 MAD_UNITS_CENTISECONDS = 100,
Gruenfrosch 0:7627c79db971 598 MAD_UNITS_MILLISECONDS = 1000,
Gruenfrosch 0:7627c79db971 599
Gruenfrosch 0:7627c79db971 600 /* audio sample units */
Gruenfrosch 0:7627c79db971 601
Gruenfrosch 0:7627c79db971 602 MAD_UNITS_8000_HZ = 8000,
Gruenfrosch 0:7627c79db971 603 MAD_UNITS_11025_HZ = 11025,
Gruenfrosch 0:7627c79db971 604 MAD_UNITS_12000_HZ = 12000,
Gruenfrosch 0:7627c79db971 605
Gruenfrosch 0:7627c79db971 606 MAD_UNITS_16000_HZ = 16000,
Gruenfrosch 0:7627c79db971 607 MAD_UNITS_22050_HZ = 22050,
Gruenfrosch 0:7627c79db971 608 MAD_UNITS_24000_HZ = 24000,
Gruenfrosch 0:7627c79db971 609
Gruenfrosch 0:7627c79db971 610 MAD_UNITS_32000_HZ = 32000,
Gruenfrosch 0:7627c79db971 611 MAD_UNITS_44100_HZ = 44100,
Gruenfrosch 0:7627c79db971 612 MAD_UNITS_48000_HZ = 48000,
Gruenfrosch 0:7627c79db971 613
Gruenfrosch 0:7627c79db971 614 /* video frame/field units */
Gruenfrosch 0:7627c79db971 615
Gruenfrosch 0:7627c79db971 616 MAD_UNITS_24_FPS = 24,
Gruenfrosch 0:7627c79db971 617 MAD_UNITS_25_FPS = 25,
Gruenfrosch 0:7627c79db971 618 MAD_UNITS_30_FPS = 30,
Gruenfrosch 0:7627c79db971 619 MAD_UNITS_48_FPS = 48,
Gruenfrosch 0:7627c79db971 620 MAD_UNITS_50_FPS = 50,
Gruenfrosch 0:7627c79db971 621 MAD_UNITS_60_FPS = 60,
Gruenfrosch 0:7627c79db971 622
Gruenfrosch 0:7627c79db971 623 /* CD audio frames */
Gruenfrosch 0:7627c79db971 624
Gruenfrosch 0:7627c79db971 625 MAD_UNITS_75_FPS = 75,
Gruenfrosch 0:7627c79db971 626
Gruenfrosch 0:7627c79db971 627 /* video drop-frame units */
Gruenfrosch 0:7627c79db971 628
Gruenfrosch 0:7627c79db971 629 MAD_UNITS_23_976_FPS = -24,
Gruenfrosch 0:7627c79db971 630 MAD_UNITS_24_975_FPS = -25,
Gruenfrosch 0:7627c79db971 631 MAD_UNITS_29_97_FPS = -30,
Gruenfrosch 0:7627c79db971 632 MAD_UNITS_47_952_FPS = -48,
Gruenfrosch 0:7627c79db971 633 MAD_UNITS_49_95_FPS = -50,
Gruenfrosch 0:7627c79db971 634 MAD_UNITS_59_94_FPS = -60
Gruenfrosch 0:7627c79db971 635 };
Gruenfrosch 0:7627c79db971 636
Gruenfrosch 0:7627c79db971 637 # define mad_timer_reset(timer) ((void) (*(timer) = mad_timer_zero))
Gruenfrosch 0:7627c79db971 638
Gruenfrosch 0:7627c79db971 639 int mad_timer_compare(mad_timer_t, mad_timer_t);
Gruenfrosch 0:7627c79db971 640
Gruenfrosch 0:7627c79db971 641 # define mad_timer_sign(timer) mad_timer_compare((timer), mad_timer_zero)
Gruenfrosch 0:7627c79db971 642
Gruenfrosch 0:7627c79db971 643 void mad_timer_negate(mad_timer_t *);
Gruenfrosch 0:7627c79db971 644 mad_timer_t mad_timer_abs(mad_timer_t);
Gruenfrosch 0:7627c79db971 645
Gruenfrosch 0:7627c79db971 646 void mad_timer_set(mad_timer_t *, unsigned long, unsigned long, unsigned long);
Gruenfrosch 0:7627c79db971 647 void mad_timer_add(mad_timer_t *, mad_timer_t);
Gruenfrosch 0:7627c79db971 648 void mad_timer_multiply(mad_timer_t *, signed long);
Gruenfrosch 0:7627c79db971 649
Gruenfrosch 0:7627c79db971 650 signed long mad_timer_count(mad_timer_t, enum mad_units);
Gruenfrosch 0:7627c79db971 651 unsigned long mad_timer_fraction(mad_timer_t, unsigned long);
Gruenfrosch 0:7627c79db971 652 void mad_timer_string(mad_timer_t, char *, char const *,
Gruenfrosch 0:7627c79db971 653 enum mad_units, enum mad_units, unsigned long);
Gruenfrosch 0:7627c79db971 654
Gruenfrosch 0:7627c79db971 655 # endif
Gruenfrosch 0:7627c79db971 656
Gruenfrosch 0:7627c79db971 657 /* Id: stream.h,v 1.20 2004/02/05 09:02:39 rob Exp */
Gruenfrosch 0:7627c79db971 658
Gruenfrosch 0:7627c79db971 659 # ifndef LIBMAD_STREAM_H
Gruenfrosch 0:7627c79db971 660 # define LIBMAD_STREAM_H
Gruenfrosch 0:7627c79db971 661
Gruenfrosch 0:7627c79db971 662
Gruenfrosch 0:7627c79db971 663 # define MAD_BUFFER_GUARD 8
Gruenfrosch 0:7627c79db971 664 # define MAD_BUFFER_MDLEN (511 + 2048 + MAD_BUFFER_GUARD)
Gruenfrosch 0:7627c79db971 665
Gruenfrosch 0:7627c79db971 666 enum mad_error {
Gruenfrosch 0:7627c79db971 667 MAD_ERROR_NONE = 0x0000, /* no error */
Gruenfrosch 0:7627c79db971 668
Gruenfrosch 0:7627c79db971 669 MAD_ERROR_BUFLEN = 0x0001, /* input buffer too small (or EOF) */
Gruenfrosch 0:7627c79db971 670 MAD_ERROR_BUFPTR = 0x0002, /* invalid (null) buffer pointer */
Gruenfrosch 0:7627c79db971 671
Gruenfrosch 0:7627c79db971 672 MAD_ERROR_NOMEM = 0x0031, /* not enough memory */
Gruenfrosch 0:7627c79db971 673
Gruenfrosch 0:7627c79db971 674 MAD_ERROR_LOSTSYNC = 0x0101, /* lost synchronization */
Gruenfrosch 0:7627c79db971 675 MAD_ERROR_BADLAYER = 0x0102, /* reserved header layer value */
Gruenfrosch 0:7627c79db971 676 MAD_ERROR_BADBITRATE = 0x0103, /* forbidden bitrate value */
Gruenfrosch 0:7627c79db971 677 MAD_ERROR_BADSAMPLERATE = 0x0104, /* reserved sample frequency value */
Gruenfrosch 0:7627c79db971 678 MAD_ERROR_BADEMPHASIS = 0x0105, /* reserved emphasis value */
Gruenfrosch 0:7627c79db971 679
Gruenfrosch 0:7627c79db971 680 MAD_ERROR_BADCRC = 0x0201, /* CRC check failed */
Gruenfrosch 0:7627c79db971 681 MAD_ERROR_BADBITALLOC = 0x0211, /* forbidden bit allocation value */
Gruenfrosch 0:7627c79db971 682 MAD_ERROR_BADSCALEFACTOR = 0x0221, /* bad scalefactor index */
Gruenfrosch 0:7627c79db971 683 MAD_ERROR_BADMODE = 0x0222, /* bad bitrate/mode combination */
Gruenfrosch 0:7627c79db971 684 MAD_ERROR_BADFRAMELEN = 0x0231, /* bad frame length */
Gruenfrosch 0:7627c79db971 685 MAD_ERROR_BADBIGVALUES = 0x0232, /* bad big_values count */
Gruenfrosch 0:7627c79db971 686 MAD_ERROR_BADBLOCKTYPE = 0x0233, /* reserved block_type */
Gruenfrosch 0:7627c79db971 687 MAD_ERROR_BADSCFSI = 0x0234, /* bad scalefactor selection info */
Gruenfrosch 0:7627c79db971 688 MAD_ERROR_BADDATAPTR = 0x0235, /* bad main_data_begin pointer */
Gruenfrosch 0:7627c79db971 689 MAD_ERROR_BADPART3LEN = 0x0236, /* bad audio data length */
Gruenfrosch 0:7627c79db971 690 MAD_ERROR_BADHUFFTABLE = 0x0237, /* bad Huffman table select */
Gruenfrosch 0:7627c79db971 691 MAD_ERROR_BADHUFFDATA = 0x0238, /* Huffman data overrun */
Gruenfrosch 0:7627c79db971 692 MAD_ERROR_BADSTEREO = 0x0239 /* incompatible block_type for JS */
Gruenfrosch 0:7627c79db971 693 };
Gruenfrosch 0:7627c79db971 694
Gruenfrosch 0:7627c79db971 695 # define MAD_RECOVERABLE(error) ((error) & 0xff00)
Gruenfrosch 0:7627c79db971 696
Gruenfrosch 0:7627c79db971 697 struct mad_stream {
Gruenfrosch 0:7627c79db971 698 unsigned char const *buffer; /* input bitstream buffer */
Gruenfrosch 0:7627c79db971 699 unsigned char const *bufend; /* end of buffer */
Gruenfrosch 0:7627c79db971 700 unsigned long skiplen; /* bytes to skip before next frame */
Gruenfrosch 0:7627c79db971 701
Gruenfrosch 0:7627c79db971 702 int sync; /* stream sync found */
Gruenfrosch 0:7627c79db971 703 unsigned long freerate; /* free bitrate (fixed) */
Gruenfrosch 0:7627c79db971 704
Gruenfrosch 0:7627c79db971 705 unsigned char const *this_frame; /* start of current frame */
Gruenfrosch 0:7627c79db971 706 unsigned char const *next_frame; /* start of next frame */
Gruenfrosch 0:7627c79db971 707 struct mad_bitptr ptr; /* current processing bit pointer */
Gruenfrosch 0:7627c79db971 708
Gruenfrosch 0:7627c79db971 709 struct mad_bitptr anc_ptr; /* ancillary bits pointer */
Gruenfrosch 0:7627c79db971 710 unsigned int anc_bitlen; /* number of ancillary bits */
Gruenfrosch 0:7627c79db971 711
Gruenfrosch 0:7627c79db971 712 unsigned char (*main_data)[MAD_BUFFER_MDLEN];
Gruenfrosch 0:7627c79db971 713 /* Layer III main_data() */
Gruenfrosch 0:7627c79db971 714 unsigned int md_len; /* bytes in main_data */
Gruenfrosch 0:7627c79db971 715
Gruenfrosch 0:7627c79db971 716 int options; /* decoding options (see below) */
Gruenfrosch 0:7627c79db971 717 enum mad_error error; /* error code (see above) */
Gruenfrosch 0:7627c79db971 718 };
Gruenfrosch 0:7627c79db971 719
Gruenfrosch 0:7627c79db971 720 enum {
Gruenfrosch 0:7627c79db971 721 MAD_OPTION_IGNORECRC = 0x0001, /* ignore CRC errors */
Gruenfrosch 0:7627c79db971 722 MAD_OPTION_HALFSAMPLERATE = 0x0002 /* generate PCM at 1/2 sample rate */
Gruenfrosch 0:7627c79db971 723 # if 0 /* not yet implemented */
Gruenfrosch 0:7627c79db971 724 MAD_OPTION_LEFTCHANNEL = 0x0010, /* decode left channel only */
Gruenfrosch 0:7627c79db971 725 MAD_OPTION_RIGHTCHANNEL = 0x0020, /* decode right channel only */
Gruenfrosch 0:7627c79db971 726 MAD_OPTION_SINGLECHANNEL = 0x0030 /* combine channels */
Gruenfrosch 0:7627c79db971 727 # endif
Gruenfrosch 0:7627c79db971 728 };
Gruenfrosch 0:7627c79db971 729
Gruenfrosch 0:7627c79db971 730 void mad_stream_init(struct mad_stream *);
Gruenfrosch 0:7627c79db971 731 void mad_stream_finish(struct mad_stream *);
Gruenfrosch 0:7627c79db971 732
Gruenfrosch 0:7627c79db971 733 # define mad_stream_options(stream, opts) \
Gruenfrosch 0:7627c79db971 734 ((void) ((stream)->options = (opts)))
Gruenfrosch 0:7627c79db971 735
Gruenfrosch 0:7627c79db971 736 void mad_stream_buffer(struct mad_stream *,
Gruenfrosch 0:7627c79db971 737 unsigned char const *, unsigned long);
Gruenfrosch 0:7627c79db971 738 void mad_stream_skip(struct mad_stream *, unsigned long);
Gruenfrosch 0:7627c79db971 739
Gruenfrosch 0:7627c79db971 740 int mad_stream_sync(struct mad_stream *);
Gruenfrosch 0:7627c79db971 741
Gruenfrosch 0:7627c79db971 742 char const *mad_stream_errorstr(struct mad_stream const *);
Gruenfrosch 0:7627c79db971 743
Gruenfrosch 0:7627c79db971 744 # endif
Gruenfrosch 0:7627c79db971 745
Gruenfrosch 0:7627c79db971 746 /* Id: frame.h,v 1.20 2004/01/23 09:41:32 rob Exp */
Gruenfrosch 0:7627c79db971 747
Gruenfrosch 0:7627c79db971 748 # ifndef LIBMAD_FRAME_H
Gruenfrosch 0:7627c79db971 749 # define LIBMAD_FRAME_H
Gruenfrosch 0:7627c79db971 750
Gruenfrosch 0:7627c79db971 751
Gruenfrosch 0:7627c79db971 752 enum mad_layer {
Gruenfrosch 0:7627c79db971 753 MAD_LAYER_I = 1, /* Layer I */
Gruenfrosch 0:7627c79db971 754 MAD_LAYER_II = 2, /* Layer II */
Gruenfrosch 0:7627c79db971 755 MAD_LAYER_III = 3 /* Layer III */
Gruenfrosch 0:7627c79db971 756 };
Gruenfrosch 0:7627c79db971 757
Gruenfrosch 0:7627c79db971 758 enum mad_mode {
Gruenfrosch 0:7627c79db971 759 MAD_MODE_SINGLE_CHANNEL = 0, /* single channel */
Gruenfrosch 0:7627c79db971 760 MAD_MODE_DUAL_CHANNEL = 1, /* dual channel */
Gruenfrosch 0:7627c79db971 761 MAD_MODE_JOINT_STEREO = 2, /* joint (MS/intensity) stereo */
Gruenfrosch 0:7627c79db971 762 MAD_MODE_STEREO = 3 /* normal LR stereo */
Gruenfrosch 0:7627c79db971 763 };
Gruenfrosch 0:7627c79db971 764
Gruenfrosch 0:7627c79db971 765 enum mad_emphasis {
Gruenfrosch 0:7627c79db971 766 MAD_EMPHASIS_NONE = 0, /* no emphasis */
Gruenfrosch 0:7627c79db971 767 MAD_EMPHASIS_50_15_US = 1, /* 50/15 microseconds emphasis */
Gruenfrosch 0:7627c79db971 768 MAD_EMPHASIS_CCITT_J_17 = 3, /* CCITT J.17 emphasis */
Gruenfrosch 0:7627c79db971 769 MAD_EMPHASIS_RESERVED = 2 /* unknown emphasis */
Gruenfrosch 0:7627c79db971 770 };
Gruenfrosch 0:7627c79db971 771
Gruenfrosch 0:7627c79db971 772 struct mad_header {
Gruenfrosch 0:7627c79db971 773 enum mad_layer layer; /* audio layer (1, 2, or 3) */
Gruenfrosch 0:7627c79db971 774 enum mad_mode mode; /* channel mode (see above) */
Gruenfrosch 0:7627c79db971 775 int mode_extension; /* additional mode info */
Gruenfrosch 0:7627c79db971 776 enum mad_emphasis emphasis; /* de-emphasis to use (see above) */
Gruenfrosch 0:7627c79db971 777
Gruenfrosch 0:7627c79db971 778 unsigned long bitrate; /* stream bitrate (bps) */
Gruenfrosch 0:7627c79db971 779 unsigned int samplerate; /* sampling frequency (Hz) */
Gruenfrosch 0:7627c79db971 780
Gruenfrosch 0:7627c79db971 781 unsigned short crc_check; /* frame CRC accumulator */
Gruenfrosch 0:7627c79db971 782 unsigned short crc_target; /* final target CRC checksum */
Gruenfrosch 0:7627c79db971 783
Gruenfrosch 0:7627c79db971 784 int flags; /* flags (see below) */
Gruenfrosch 0:7627c79db971 785 int private_bits; /* private bits (see below) */
Gruenfrosch 0:7627c79db971 786
Gruenfrosch 0:7627c79db971 787 mad_timer_t duration; /* audio playing time of frame */
Gruenfrosch 0:7627c79db971 788 };
Gruenfrosch 0:7627c79db971 789
Gruenfrosch 0:7627c79db971 790 struct mad_frame {
Gruenfrosch 0:7627c79db971 791 struct mad_header header; /* MPEG audio header */
Gruenfrosch 0:7627c79db971 792
Gruenfrosch 0:7627c79db971 793 int options; /* decoding options (from stream) */
Gruenfrosch 0:7627c79db971 794
Gruenfrosch 0:7627c79db971 795 mad_fixed_t sbsample[2][36][32]; /* synthesis subband filter samples */
Gruenfrosch 0:7627c79db971 796 mad_fixed_t (*overlap)[2][32][18]; /* Layer III block overlap data */
Gruenfrosch 0:7627c79db971 797 };
Gruenfrosch 0:7627c79db971 798
Gruenfrosch 0:7627c79db971 799 # define MAD_NCHANNELS(header) ((header)->mode ? 2 : 1)
Gruenfrosch 0:7627c79db971 800 # define MAD_NSBSAMPLES(header) \
Gruenfrosch 0:7627c79db971 801 ((header)->layer == MAD_LAYER_I ? 12 : \
Gruenfrosch 0:7627c79db971 802 (((header)->layer == MAD_LAYER_III && \
Gruenfrosch 0:7627c79db971 803 ((header)->flags & MAD_FLAG_LSF_EXT)) ? 18 : 36))
Gruenfrosch 0:7627c79db971 804
Gruenfrosch 0:7627c79db971 805 enum {
Gruenfrosch 0:7627c79db971 806 MAD_FLAG_NPRIVATE_III = 0x0007, /* number of Layer III private bits */
Gruenfrosch 0:7627c79db971 807 MAD_FLAG_INCOMPLETE = 0x0008, /* header but not data is decoded */
Gruenfrosch 0:7627c79db971 808
Gruenfrosch 0:7627c79db971 809 MAD_FLAG_PROTECTION = 0x0010, /* frame has CRC protection */
Gruenfrosch 0:7627c79db971 810 MAD_FLAG_COPYRIGHT = 0x0020, /* frame is copyright */
Gruenfrosch 0:7627c79db971 811 MAD_FLAG_ORIGINAL = 0x0040, /* frame is original (else copy) */
Gruenfrosch 0:7627c79db971 812 MAD_FLAG_PADDING = 0x0080, /* frame has additional slot */
Gruenfrosch 0:7627c79db971 813
Gruenfrosch 0:7627c79db971 814 MAD_FLAG_I_STEREO = 0x0100, /* uses intensity joint stereo */
Gruenfrosch 0:7627c79db971 815 MAD_FLAG_MS_STEREO = 0x0200, /* uses middle/side joint stereo */
Gruenfrosch 0:7627c79db971 816 MAD_FLAG_FREEFORMAT = 0x0400, /* uses free format bitrate */
Gruenfrosch 0:7627c79db971 817
Gruenfrosch 0:7627c79db971 818 MAD_FLAG_LSF_EXT = 0x1000, /* lower sampling freq. extension */
Gruenfrosch 0:7627c79db971 819 MAD_FLAG_MC_EXT = 0x2000, /* multichannel audio extension */
Gruenfrosch 0:7627c79db971 820 MAD_FLAG_MPEG_2_5_EXT = 0x4000 /* MPEG 2.5 (unofficial) extension */
Gruenfrosch 0:7627c79db971 821 };
Gruenfrosch 0:7627c79db971 822
Gruenfrosch 0:7627c79db971 823 enum {
Gruenfrosch 0:7627c79db971 824 MAD_PRIVATE_HEADER = 0x0100, /* header private bit */
Gruenfrosch 0:7627c79db971 825 MAD_PRIVATE_III = 0x001f /* Layer III private bits (up to 5) */
Gruenfrosch 0:7627c79db971 826 };
Gruenfrosch 0:7627c79db971 827
Gruenfrosch 0:7627c79db971 828 void mad_header_init(struct mad_header *);
Gruenfrosch 0:7627c79db971 829
Gruenfrosch 0:7627c79db971 830 # define mad_header_finish(header) /* nothing */
Gruenfrosch 0:7627c79db971 831
Gruenfrosch 0:7627c79db971 832 int mad_header_decode(struct mad_header *, struct mad_stream *);
Gruenfrosch 0:7627c79db971 833
Gruenfrosch 0:7627c79db971 834 void mad_frame_init(struct mad_frame *);
Gruenfrosch 0:7627c79db971 835 void mad_frame_finish(struct mad_frame *);
Gruenfrosch 0:7627c79db971 836
Gruenfrosch 0:7627c79db971 837 int mad_frame_decode(struct mad_frame *, struct mad_stream *);
Gruenfrosch 0:7627c79db971 838
Gruenfrosch 0:7627c79db971 839 void mad_frame_mute(struct mad_frame *);
Gruenfrosch 0:7627c79db971 840
Gruenfrosch 0:7627c79db971 841 # endif
Gruenfrosch 0:7627c79db971 842
Gruenfrosch 0:7627c79db971 843 /* Id: synth.h,v 1.15 2004/01/23 09:41:33 rob Exp */
Gruenfrosch 0:7627c79db971 844
Gruenfrosch 0:7627c79db971 845 # ifndef LIBMAD_SYNTH_H
Gruenfrosch 0:7627c79db971 846 # define LIBMAD_SYNTH_H
Gruenfrosch 0:7627c79db971 847
Gruenfrosch 0:7627c79db971 848
Gruenfrosch 0:7627c79db971 849 struct mad_pcm {
Gruenfrosch 0:7627c79db971 850 unsigned int samplerate; /* sampling frequency (Hz) */
Gruenfrosch 0:7627c79db971 851 unsigned short channels; /* number of channels */
Gruenfrosch 0:7627c79db971 852 unsigned short length; /* number of samples per channel */
Gruenfrosch 0:7627c79db971 853 mad_fixed_t samples[2][1152]; /* PCM output samples [ch][sample] */
Gruenfrosch 0:7627c79db971 854 };
Gruenfrosch 0:7627c79db971 855
Gruenfrosch 0:7627c79db971 856 struct mad_synth {
Gruenfrosch 0:7627c79db971 857 mad_fixed_t filter[2][2][2][16][8]; /* polyphase filterbank outputs */
Gruenfrosch 0:7627c79db971 858 /* [ch][eo][peo][s][v] */
Gruenfrosch 0:7627c79db971 859
Gruenfrosch 0:7627c79db971 860 unsigned int phase; /* current processing phase */
Gruenfrosch 0:7627c79db971 861
Gruenfrosch 0:7627c79db971 862 struct mad_pcm pcm; /* PCM output */
Gruenfrosch 0:7627c79db971 863 };
Gruenfrosch 0:7627c79db971 864
Gruenfrosch 0:7627c79db971 865 /* single channel PCM selector */
Gruenfrosch 0:7627c79db971 866 enum {
Gruenfrosch 0:7627c79db971 867 MAD_PCM_CHANNEL_SINGLE = 0
Gruenfrosch 0:7627c79db971 868 };
Gruenfrosch 0:7627c79db971 869
Gruenfrosch 0:7627c79db971 870 /* dual channel PCM selector */
Gruenfrosch 0:7627c79db971 871 enum {
Gruenfrosch 0:7627c79db971 872 MAD_PCM_CHANNEL_DUAL_1 = 0,
Gruenfrosch 0:7627c79db971 873 MAD_PCM_CHANNEL_DUAL_2 = 1
Gruenfrosch 0:7627c79db971 874 };
Gruenfrosch 0:7627c79db971 875
Gruenfrosch 0:7627c79db971 876 /* stereo PCM selector */
Gruenfrosch 0:7627c79db971 877 enum {
Gruenfrosch 0:7627c79db971 878 MAD_PCM_CHANNEL_STEREO_LEFT = 0,
Gruenfrosch 0:7627c79db971 879 MAD_PCM_CHANNEL_STEREO_RIGHT = 1
Gruenfrosch 0:7627c79db971 880 };
Gruenfrosch 0:7627c79db971 881
Gruenfrosch 0:7627c79db971 882 void mad_synth_init(struct mad_synth *);
Gruenfrosch 0:7627c79db971 883
Gruenfrosch 0:7627c79db971 884 # define mad_synth_finish(synth) /* nothing */
Gruenfrosch 0:7627c79db971 885
Gruenfrosch 0:7627c79db971 886 void mad_synth_mute(struct mad_synth *);
Gruenfrosch 0:7627c79db971 887
Gruenfrosch 0:7627c79db971 888 void mad_synth_frame(struct mad_synth *, struct mad_frame const *);
Gruenfrosch 0:7627c79db971 889
Gruenfrosch 0:7627c79db971 890 # endif
Gruenfrosch 0:7627c79db971 891
Gruenfrosch 0:7627c79db971 892 /* Id: decoder.h,v 1.17 2004/01/23 09:41:32 rob Exp */
Gruenfrosch 0:7627c79db971 893
Gruenfrosch 0:7627c79db971 894 # ifndef LIBMAD_DECODER_H
Gruenfrosch 0:7627c79db971 895 # define LIBMAD_DECODER_H
Gruenfrosch 0:7627c79db971 896
Gruenfrosch 0:7627c79db971 897
Gruenfrosch 0:7627c79db971 898 enum mad_decoder_mode {
Gruenfrosch 0:7627c79db971 899 MAD_DECODER_MODE_SYNC = 0,
Gruenfrosch 0:7627c79db971 900 MAD_DECODER_MODE_ASYNC
Gruenfrosch 0:7627c79db971 901 };
Gruenfrosch 0:7627c79db971 902
Gruenfrosch 0:7627c79db971 903 enum mad_flow {
Gruenfrosch 0:7627c79db971 904 MAD_FLOW_CONTINUE = 0x0000, /* continue normally */
Gruenfrosch 0:7627c79db971 905 MAD_FLOW_STOP = 0x0010, /* stop decoding normally */
Gruenfrosch 0:7627c79db971 906 MAD_FLOW_BREAK = 0x0011, /* stop decoding and signal an error */
Gruenfrosch 0:7627c79db971 907 MAD_FLOW_IGNORE = 0x0020 /* ignore the current frame */
Gruenfrosch 0:7627c79db971 908 };
Gruenfrosch 0:7627c79db971 909
Gruenfrosch 0:7627c79db971 910 struct mad_sync_s {
Gruenfrosch 0:7627c79db971 911 struct mad_stream stream;
Gruenfrosch 0:7627c79db971 912 struct mad_frame frame;
Gruenfrosch 0:7627c79db971 913 struct mad_synth *synth;
Gruenfrosch 0:7627c79db971 914 };
Gruenfrosch 0:7627c79db971 915
Gruenfrosch 0:7627c79db971 916 struct mad_decoder {
Gruenfrosch 0:7627c79db971 917 enum mad_decoder_mode mode;
Gruenfrosch 0:7627c79db971 918
Gruenfrosch 0:7627c79db971 919 int options;
Gruenfrosch 0:7627c79db971 920
Gruenfrosch 0:7627c79db971 921 struct {
Gruenfrosch 0:7627c79db971 922 long pid;
Gruenfrosch 0:7627c79db971 923 int in;
Gruenfrosch 0:7627c79db971 924 int out;
Gruenfrosch 0:7627c79db971 925 } async;
Gruenfrosch 0:7627c79db971 926
Gruenfrosch 0:7627c79db971 927 struct mad_sync_s *sync;
Gruenfrosch 0:7627c79db971 928
Gruenfrosch 0:7627c79db971 929 void *cb_data;
Gruenfrosch 0:7627c79db971 930
Gruenfrosch 0:7627c79db971 931 enum mad_flow (*input_func)(void *, struct mad_stream *);
Gruenfrosch 0:7627c79db971 932 enum mad_flow (*header_func)(void *, struct mad_header const *);
Gruenfrosch 0:7627c79db971 933 enum mad_flow (*filter_func)(void *,
Gruenfrosch 0:7627c79db971 934 struct mad_stream const *, struct mad_frame *);
Gruenfrosch 0:7627c79db971 935 enum mad_flow (*output_func)(void *,
Gruenfrosch 0:7627c79db971 936 struct mad_header const *, struct mad_pcm *);
Gruenfrosch 0:7627c79db971 937 enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
Gruenfrosch 0:7627c79db971 938 enum mad_flow (*message_func)(void *, void *, unsigned int *);
Gruenfrosch 0:7627c79db971 939 };
Gruenfrosch 0:7627c79db971 940
Gruenfrosch 0:7627c79db971 941 void mad_decoder_init(struct mad_decoder *, void *,
Gruenfrosch 0:7627c79db971 942 enum mad_flow (*)(void *, struct mad_stream *),
Gruenfrosch 0:7627c79db971 943 enum mad_flow (*)(void *, struct mad_header const *),
Gruenfrosch 0:7627c79db971 944 enum mad_flow (*)(void *,
Gruenfrosch 0:7627c79db971 945 struct mad_stream const *,
Gruenfrosch 0:7627c79db971 946 struct mad_frame *),
Gruenfrosch 0:7627c79db971 947 enum mad_flow (*)(void *,
Gruenfrosch 0:7627c79db971 948 struct mad_header const *,
Gruenfrosch 0:7627c79db971 949 struct mad_pcm *),
Gruenfrosch 0:7627c79db971 950 enum mad_flow (*)(void *,
Gruenfrosch 0:7627c79db971 951 struct mad_stream *,
Gruenfrosch 0:7627c79db971 952 struct mad_frame *),
Gruenfrosch 0:7627c79db971 953 enum mad_flow (*)(void *, void *, unsigned int *));
Gruenfrosch 0:7627c79db971 954 int mad_decoder_finish(struct mad_decoder *);
Gruenfrosch 0:7627c79db971 955
Gruenfrosch 0:7627c79db971 956 # define mad_decoder_options(decoder, opts) \
Gruenfrosch 0:7627c79db971 957 ((void) ((decoder)->options = (opts)))
Gruenfrosch 0:7627c79db971 958
Gruenfrosch 0:7627c79db971 959 int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
Gruenfrosch 0:7627c79db971 960 int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
Gruenfrosch 0:7627c79db971 961
Gruenfrosch 0:7627c79db971 962 # endif
Gruenfrosch 0:7627c79db971 963
Gruenfrosch 0:7627c79db971 964 # ifdef __cplusplus
Gruenfrosch 0:7627c79db971 965 }
Gruenfrosch 0:7627c79db971 966 # endif