Suga koubou / Mbed 2 deprecated madplayer_lpc4088

MP3 Player. You can change fwd/rev speed and skip. see: http://mbed.org/users/okini3939/notebook/lpc4088_madplayer/

Dependencies:   I2SSlave SDFileSystem TLV320 mbed

madplayer/mad.h@0:8ba6230eefbd, 2014-02-18 (annotated)

Committer:
okini3939
Date:
Tue Feb 18 00:22:50 2014 +0000
Revision:
0:8ba6230eefbd
1st build

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okini3939 0:8ba6230eefbd 1 /*
okini3939 0:8ba6230eefbd 2 * libmad - MPEG audio decoder library
okini3939 0:8ba6230eefbd 3 * Copyright (C) 2000-2004 Underbit Technologies, Inc.
okini3939 0:8ba6230eefbd 4 *
okini3939 0:8ba6230eefbd 5 * This program is free software; you can redistribute it and/or modify
okini3939 0:8ba6230eefbd 6 * it under the terms of the GNU General Public License as published by
okini3939 0:8ba6230eefbd 7 * the Free Software Foundation; either version 2 of the License, or
okini3939 0:8ba6230eefbd 8 * (at your option) any later version.
okini3939 0:8ba6230eefbd 9 *
okini3939 0:8ba6230eefbd 10 * This program is distributed in the hope that it will be useful,
okini3939 0:8ba6230eefbd 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
okini3939 0:8ba6230eefbd 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
okini3939 0:8ba6230eefbd 13 * GNU General Public License for more details.
okini3939 0:8ba6230eefbd 14 *
okini3939 0:8ba6230eefbd 15 * You should have received a copy of the GNU General Public License
okini3939 0:8ba6230eefbd 16 * along with this program; if not, write to the Free Software
okini3939 0:8ba6230eefbd 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
okini3939 0:8ba6230eefbd 18 *
okini3939 0:8ba6230eefbd 19 * If you would like to negotiate alternate licensing terms, you may do
okini3939 0:8ba6230eefbd 20 * so by contacting: Underbit Technologies, Inc. <info@underbit.com>
okini3939 0:8ba6230eefbd 21 */
okini3939 0:8ba6230eefbd 22
okini3939 0:8ba6230eefbd 23 # ifdef __cplusplus
okini3939 0:8ba6230eefbd 24 extern "C" {
okini3939 0:8ba6230eefbd 25 # endif
okini3939 0:8ba6230eefbd 26
okini3939 0:8ba6230eefbd 27 # define FPM_INTEL
okini3939 0:8ba6230eefbd 28
okini3939 0:8ba6230eefbd 29
okini3939 0:8ba6230eefbd 30
okini3939 0:8ba6230eefbd 31 # define SIZEOF_INT 4
okini3939 0:8ba6230eefbd 32 # define SIZEOF_LONG 4
okini3939 0:8ba6230eefbd 33 # define SIZEOF_LONG_LONG 8
okini3939 0:8ba6230eefbd 34
okini3939 0:8ba6230eefbd 35
okini3939 0:8ba6230eefbd 36 /* Id: version.h,v 1.26 2004/01/23 09:41:33 rob Exp */
okini3939 0:8ba6230eefbd 37
okini3939 0:8ba6230eefbd 38 # ifndef LIBMAD_VERSION_H
okini3939 0:8ba6230eefbd 39 # define LIBMAD_VERSION_H
okini3939 0:8ba6230eefbd 40
okini3939 0:8ba6230eefbd 41 # define MAD_VERSION_MAJOR 0
okini3939 0:8ba6230eefbd 42 # define MAD_VERSION_MINOR 15
okini3939 0:8ba6230eefbd 43 # define MAD_VERSION_PATCH 1
okini3939 0:8ba6230eefbd 44 # define MAD_VERSION_EXTRA " (beta)"
okini3939 0:8ba6230eefbd 45
okini3939 0:8ba6230eefbd 46 # define MAD_VERSION_STRINGIZE(str) #str
okini3939 0:8ba6230eefbd 47 # define MAD_VERSION_STRING(num) MAD_VERSION_STRINGIZE(num)
okini3939 0:8ba6230eefbd 48
okini3939 0:8ba6230eefbd 49 # define MAD_VERSION MAD_VERSION_STRING(MAD_VERSION_MAJOR) "." \
okini3939 0:8ba6230eefbd 50 MAD_VERSION_STRING(MAD_VERSION_MINOR) "." \
okini3939 0:8ba6230eefbd 51 MAD_VERSION_STRING(MAD_VERSION_PATCH) \
okini3939 0:8ba6230eefbd 52 MAD_VERSION_EXTRA
okini3939 0:8ba6230eefbd 53
okini3939 0:8ba6230eefbd 54 # define MAD_PUBLISHYEAR "2000-2004"
okini3939 0:8ba6230eefbd 55 # define MAD_AUTHOR "Underbit Technologies, Inc."
okini3939 0:8ba6230eefbd 56 # define MAD_EMAIL "info@underbit.com"
okini3939 0:8ba6230eefbd 57
okini3939 0:8ba6230eefbd 58 extern char const mad_version[];
okini3939 0:8ba6230eefbd 59 extern char const mad_copyright[];
okini3939 0:8ba6230eefbd 60 extern char const mad_author[];
okini3939 0:8ba6230eefbd 61 extern char const mad_build[];
okini3939 0:8ba6230eefbd 62
okini3939 0:8ba6230eefbd 63 # endif
okini3939 0:8ba6230eefbd 64
okini3939 0:8ba6230eefbd 65 /* Id: fixed.h,v 1.38 2004/02/17 02:02:03 rob Exp */
okini3939 0:8ba6230eefbd 66
okini3939 0:8ba6230eefbd 67 # ifndef LIBMAD_FIXED_H
okini3939 0:8ba6230eefbd 68 # define LIBMAD_FIXED_H
okini3939 0:8ba6230eefbd 69
okini3939 0:8ba6230eefbd 70 # if SIZEOF_INT >= 4
okini3939 0:8ba6230eefbd 71 typedef signed int mad_fixed_t;
okini3939 0:8ba6230eefbd 72
okini3939 0:8ba6230eefbd 73 typedef signed int mad_fixed64hi_t;
okini3939 0:8ba6230eefbd 74 typedef unsigned int mad_fixed64lo_t;
okini3939 0:8ba6230eefbd 75 # else
okini3939 0:8ba6230eefbd 76 typedef signed long mad_fixed_t;
okini3939 0:8ba6230eefbd 77
okini3939 0:8ba6230eefbd 78 typedef signed long mad_fixed64hi_t;
okini3939 0:8ba6230eefbd 79 typedef unsigned long mad_fixed64lo_t;
okini3939 0:8ba6230eefbd 80 # endif
okini3939 0:8ba6230eefbd 81
okini3939 0:8ba6230eefbd 82 # if defined(_MSC_VER)
okini3939 0:8ba6230eefbd 83 # define mad_fixed64_t signed __int64
okini3939 0:8ba6230eefbd 84 # elif 1 || defined(__GNUC__)
okini3939 0:8ba6230eefbd 85 # define mad_fixed64_t signed long long
okini3939 0:8ba6230eefbd 86 # endif
okini3939 0:8ba6230eefbd 87
okini3939 0:8ba6230eefbd 88 # if defined(FPM_FLOAT)
okini3939 0:8ba6230eefbd 89 typedef double mad_sample_t;
okini3939 0:8ba6230eefbd 90 # else
okini3939 0:8ba6230eefbd 91 typedef mad_fixed_t mad_sample_t;
okini3939 0:8ba6230eefbd 92 # endif
okini3939 0:8ba6230eefbd 93
okini3939 0:8ba6230eefbd 94 /*
okini3939 0:8ba6230eefbd 95 * Fixed-point format: 0xABBBBBBB
okini3939 0:8ba6230eefbd 96 * A == whole part (sign + 3 bits)
okini3939 0:8ba6230eefbd 97 * B == fractional part (28 bits)
okini3939 0:8ba6230eefbd 98 *
okini3939 0:8ba6230eefbd 99 * Values are signed two's complement, so the effective range is:
okini3939 0:8ba6230eefbd 100 * 0x80000000 to 0x7fffffff
okini3939 0:8ba6230eefbd 101 * -8.0 to +7.9999999962747097015380859375
okini3939 0:8ba6230eefbd 102 *
okini3939 0:8ba6230eefbd 103 * The smallest representable value is:
okini3939 0:8ba6230eefbd 104 * 0x00000001 == 0.0000000037252902984619140625 (i.e. about 3.725e-9)
okini3939 0:8ba6230eefbd 105 *
okini3939 0:8ba6230eefbd 106 * 28 bits of fractional accuracy represent about
okini3939 0:8ba6230eefbd 107 * 8.6 digits of decimal accuracy.
okini3939 0:8ba6230eefbd 108 *
okini3939 0:8ba6230eefbd 109 * Fixed-point numbers can be added or subtracted as normal
okini3939 0:8ba6230eefbd 110 * integers, but multiplication requires shifting the 64-bit result
okini3939 0:8ba6230eefbd 111 * from 56 fractional bits back to 28 (and rounding.)
okini3939 0:8ba6230eefbd 112 *
okini3939 0:8ba6230eefbd 113 * Changing the definition of MAD_F_FRACBITS is only partially
okini3939 0:8ba6230eefbd 114 * supported, and must be done with care.
okini3939 0:8ba6230eefbd 115 */
okini3939 0:8ba6230eefbd 116
okini3939 0:8ba6230eefbd 117 # define MAD_F_FRACBITS 28
okini3939 0:8ba6230eefbd 118
okini3939 0:8ba6230eefbd 119 # if MAD_F_FRACBITS == 28
okini3939 0:8ba6230eefbd 120 # define MAD_F(x) ((mad_fixed_t) (x##L))
okini3939 0:8ba6230eefbd 121 # else
okini3939 0:8ba6230eefbd 122 # if MAD_F_FRACBITS < 28
okini3939 0:8ba6230eefbd 123 # warning "MAD_F_FRACBITS < 28"
okini3939 0:8ba6230eefbd 124 # define MAD_F(x) ((mad_fixed_t) \
okini3939 0:8ba6230eefbd 125 (((x##L) + \
okini3939 0:8ba6230eefbd 126 (1L << (28 - MAD_F_FRACBITS - 1))) >> \
okini3939 0:8ba6230eefbd 127 (28 - MAD_F_FRACBITS)))
okini3939 0:8ba6230eefbd 128 # elif MAD_F_FRACBITS > 28
okini3939 0:8ba6230eefbd 129 # error "MAD_F_FRACBITS > 28 not currently supported"
okini3939 0:8ba6230eefbd 130 # define MAD_F(x) ((mad_fixed_t) \
okini3939 0:8ba6230eefbd 131 ((x##L) << (MAD_F_FRACBITS - 28)))
okini3939 0:8ba6230eefbd 132 # endif
okini3939 0:8ba6230eefbd 133 # endif
okini3939 0:8ba6230eefbd 134
okini3939 0:8ba6230eefbd 135 # define MAD_F_MIN ((mad_fixed_t) -0x80000000L)
okini3939 0:8ba6230eefbd 136 # define MAD_F_MAX ((mad_fixed_t) +0x7fffffffL)
okini3939 0:8ba6230eefbd 137
okini3939 0:8ba6230eefbd 138 # define MAD_F_ONE MAD_F(0x10000000)
okini3939 0:8ba6230eefbd 139
okini3939 0:8ba6230eefbd 140 # define mad_f_tofixed(x) ((mad_fixed_t) \
okini3939 0:8ba6230eefbd 141 ((x) * (double) (1L << MAD_F_FRACBITS) + 0.5))
okini3939 0:8ba6230eefbd 142 # define mad_f_todouble(x) ((double) \
okini3939 0:8ba6230eefbd 143 ((x) / (double) (1L << MAD_F_FRACBITS)))
okini3939 0:8ba6230eefbd 144
okini3939 0:8ba6230eefbd 145 # define mad_f_intpart(x) ((x) >> MAD_F_FRACBITS)
okini3939 0:8ba6230eefbd 146 # define mad_f_fracpart(x) ((x) & ((1L << MAD_F_FRACBITS) - 1))
okini3939 0:8ba6230eefbd 147 /* (x should be positive) */
okini3939 0:8ba6230eefbd 148
okini3939 0:8ba6230eefbd 149 # define mad_f_fromint(x) ((x) << MAD_F_FRACBITS)
okini3939 0:8ba6230eefbd 150
okini3939 0:8ba6230eefbd 151 # define mad_f_add(x, y) ((x) + (y))
okini3939 0:8ba6230eefbd 152 # define mad_f_sub(x, y) ((x) - (y))
okini3939 0:8ba6230eefbd 153
okini3939 0:8ba6230eefbd 154 # if defined(FPM_FLOAT)
okini3939 0:8ba6230eefbd 155 # error "FPM_FLOAT not yet supported"
okini3939 0:8ba6230eefbd 156
okini3939 0:8ba6230eefbd 157 # undef MAD_F
okini3939 0:8ba6230eefbd 158 # define MAD_F(x) mad_f_todouble(x)
okini3939 0:8ba6230eefbd 159
okini3939 0:8ba6230eefbd 160 # define mad_f_mul(x, y) ((x) * (y))
okini3939 0:8ba6230eefbd 161 # define mad_f_scale64
okini3939 0:8ba6230eefbd 162
okini3939 0:8ba6230eefbd 163 # undef ASO_ZEROCHECK
okini3939 0:8ba6230eefbd 164
okini3939 0:8ba6230eefbd 165 # elif defined(FPM_64BIT)
okini3939 0:8ba6230eefbd 166
okini3939 0:8ba6230eefbd 167 /*
okini3939 0:8ba6230eefbd 168 * This version should be the most accurate if 64-bit types are supported by
okini3939 0:8ba6230eefbd 169 * the compiler, although it may not be the most efficient.
okini3939 0:8ba6230eefbd 170 */
okini3939 0:8ba6230eefbd 171 # if defined(OPT_ACCURACY)
okini3939 0:8ba6230eefbd 172 # define mad_f_mul(x, y) \
okini3939 0:8ba6230eefbd 173 ((mad_fixed_t) \
okini3939 0:8ba6230eefbd 174 ((((mad_fixed64_t) (x) * (y)) + \
okini3939 0:8ba6230eefbd 175 (1L << (MAD_F_SCALEBITS - 1))) >> MAD_F_SCALEBITS))
okini3939 0:8ba6230eefbd 176 # else
okini3939 0:8ba6230eefbd 177 # define mad_f_mul(x, y) \
okini3939 0:8ba6230eefbd 178 ((mad_fixed_t) (((mad_fixed64_t) (x) * (y)) >> MAD_F_SCALEBITS))
okini3939 0:8ba6230eefbd 179 # endif
okini3939 0:8ba6230eefbd 180
okini3939 0:8ba6230eefbd 181 # define MAD_F_SCALEBITS MAD_F_FRACBITS
okini3939 0:8ba6230eefbd 182
okini3939 0:8ba6230eefbd 183 /* --- Intel --------------------------------------------------------------- */
okini3939 0:8ba6230eefbd 184
okini3939 0:8ba6230eefbd 185 # elif defined(FPM_INTEL)
okini3939 0:8ba6230eefbd 186
okini3939 0:8ba6230eefbd 187 # if defined(_MSC_VER)
okini3939 0:8ba6230eefbd 188 # pragma warning(push)
okini3939 0:8ba6230eefbd 189 # pragma warning(disable: 4035) /* no return value */
okini3939 0:8ba6230eefbd 190 static __forceinline
okini3939 0:8ba6230eefbd 191 mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
okini3939 0:8ba6230eefbd 192 {
okini3939 0:8ba6230eefbd 193 enum {
okini3939 0:8ba6230eefbd 194 fracbits = MAD_F_FRACBITS
okini3939 0:8ba6230eefbd 195 };
okini3939 0:8ba6230eefbd 196
okini3939 0:8ba6230eefbd 197 __asm {
okini3939 0:8ba6230eefbd 198 mov eax, x
okini3939 0:8ba6230eefbd 199 imul y
okini3939 0:8ba6230eefbd 200 shrd eax, edx, fracbits
okini3939 0:8ba6230eefbd 201 }
okini3939 0:8ba6230eefbd 202
okini3939 0:8ba6230eefbd 203 /* implicit return of eax */
okini3939 0:8ba6230eefbd 204 }
okini3939 0:8ba6230eefbd 205 # pragma warning(pop)
okini3939 0:8ba6230eefbd 206
okini3939 0:8ba6230eefbd 207 # define mad_f_mul mad_f_mul_inline
okini3939 0:8ba6230eefbd 208 # define mad_f_scale64
okini3939 0:8ba6230eefbd 209 # else
okini3939 0:8ba6230eefbd 210 /*
okini3939 0:8ba6230eefbd 211 * This Intel version is fast and accurate; the disposition of the least
okini3939 0:8ba6230eefbd 212 * significant bit depends on OPT_ACCURACY via mad_f_scale64().
okini3939 0:8ba6230eefbd 213 */
okini3939 0:8ba6230eefbd 214 # define MAD_F_MLX(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 215 asm ("imull %3" \
okini3939 0:8ba6230eefbd 216 : "=a" (lo), "=d" (hi) \
okini3939 0:8ba6230eefbd 217 : "%a" (x), "rm" (y) \
okini3939 0:8ba6230eefbd 218 : "cc")
okini3939 0:8ba6230eefbd 219
okini3939 0:8ba6230eefbd 220 # if defined(OPT_ACCURACY)
okini3939 0:8ba6230eefbd 221 /*
okini3939 0:8ba6230eefbd 222 * This gives best accuracy but is not very fast.
okini3939 0:8ba6230eefbd 223 */
okini3939 0:8ba6230eefbd 224 # define MAD_F_MLA(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 225 ({ mad_fixed64hi_t __hi; \
okini3939 0:8ba6230eefbd 226 mad_fixed64lo_t __lo; \
okini3939 0:8ba6230eefbd 227 MAD_F_MLX(__hi, __lo, (x), (y)); \
okini3939 0:8ba6230eefbd 228 asm ("addl %2,%0\n\t" \
okini3939 0:8ba6230eefbd 229 "adcl %3,%1" \
okini3939 0:8ba6230eefbd 230 : "=rm" (lo), "=rm" (hi) \
okini3939 0:8ba6230eefbd 231 : "r" (__lo), "r" (__hi), "0" (lo), "1" (hi) \
okini3939 0:8ba6230eefbd 232 : "cc"); \
okini3939 0:8ba6230eefbd 233 })
okini3939 0:8ba6230eefbd 234 # endif /* OPT_ACCURACY */
okini3939 0:8ba6230eefbd 235
okini3939 0:8ba6230eefbd 236 # if defined(OPT_ACCURACY)
okini3939 0:8ba6230eefbd 237 /*
okini3939 0:8ba6230eefbd 238 * Surprisingly, this is faster than SHRD followed by ADC.
okini3939 0:8ba6230eefbd 239 */
okini3939 0:8ba6230eefbd 240 # define mad_f_scale64(hi, lo) \
okini3939 0:8ba6230eefbd 241 ({ mad_fixed64hi_t __hi_; \
okini3939 0:8ba6230eefbd 242 mad_fixed64lo_t __lo_; \
okini3939 0:8ba6230eefbd 243 mad_fixed_t __result; \
okini3939 0:8ba6230eefbd 244 asm ("addl %4,%2\n\t" \
okini3939 0:8ba6230eefbd 245 "adcl %5,%3" \
okini3939 0:8ba6230eefbd 246 : "=rm" (__lo_), "=rm" (__hi_) \
okini3939 0:8ba6230eefbd 247 : "0" (lo), "1" (hi), \
okini3939 0:8ba6230eefbd 248 "ir" (1L << (MAD_F_SCALEBITS - 1)), "ir" (0) \
okini3939 0:8ba6230eefbd 249 : "cc"); \
okini3939 0:8ba6230eefbd 250 asm ("shrdl %3,%2,%1" \
okini3939 0:8ba6230eefbd 251 : "=rm" (__result) \
okini3939 0:8ba6230eefbd 252 : "0" (__lo_), "r" (__hi_), "I" (MAD_F_SCALEBITS) \
okini3939 0:8ba6230eefbd 253 : "cc"); \
okini3939 0:8ba6230eefbd 254 __result; \
okini3939 0:8ba6230eefbd 255 })
okini3939 0:8ba6230eefbd 256 # elif defined(OPT_INTEL)
okini3939 0:8ba6230eefbd 257 /*
okini3939 0:8ba6230eefbd 258 * Alternate Intel scaling that may or may not perform better.
okini3939 0:8ba6230eefbd 259 */
okini3939 0:8ba6230eefbd 260 # define mad_f_scale64(hi, lo) \
okini3939 0:8ba6230eefbd 261 ({ mad_fixed_t __result; \
okini3939 0:8ba6230eefbd 262 asm ("shrl %3,%1\n\t" \
okini3939 0:8ba6230eefbd 263 "shll %4,%2\n\t" \
okini3939 0:8ba6230eefbd 264 "orl %2,%1" \
okini3939 0:8ba6230eefbd 265 : "=rm" (__result) \
okini3939 0:8ba6230eefbd 266 : "0" (lo), "r" (hi), \
okini3939 0:8ba6230eefbd 267 "I" (MAD_F_SCALEBITS), "I" (32 - MAD_F_SCALEBITS) \
okini3939 0:8ba6230eefbd 268 : "cc"); \
okini3939 0:8ba6230eefbd 269 __result; \
okini3939 0:8ba6230eefbd 270 })
okini3939 0:8ba6230eefbd 271 # else
okini3939 0:8ba6230eefbd 272 # define mad_f_scale64(hi, lo) \
okini3939 0:8ba6230eefbd 273 ({ mad_fixed_t __result; \
okini3939 0:8ba6230eefbd 274 asm ("shrdl %3,%2,%1" \
okini3939 0:8ba6230eefbd 275 : "=rm" (__result) \
okini3939 0:8ba6230eefbd 276 : "0" (lo), "r" (hi), "I" (MAD_F_SCALEBITS) \
okini3939 0:8ba6230eefbd 277 : "cc"); \
okini3939 0:8ba6230eefbd 278 __result; \
okini3939 0:8ba6230eefbd 279 })
okini3939 0:8ba6230eefbd 280 # endif /* OPT_ACCURACY */
okini3939 0:8ba6230eefbd 281
okini3939 0:8ba6230eefbd 282 # define MAD_F_SCALEBITS MAD_F_FRACBITS
okini3939 0:8ba6230eefbd 283 # endif
okini3939 0:8ba6230eefbd 284
okini3939 0:8ba6230eefbd 285 /* --- ARM ----------------------------------------------------------------- */
okini3939 0:8ba6230eefbd 286
okini3939 0:8ba6230eefbd 287 # elif defined(FPM_ARM)
okini3939 0:8ba6230eefbd 288
okini3939 0:8ba6230eefbd 289 /*
okini3939 0:8ba6230eefbd 290 * This ARM V4 version is as accurate as FPM_64BIT but much faster. The
okini3939 0:8ba6230eefbd 291 * least significant bit is properly rounded at no CPU cycle cost!
okini3939 0:8ba6230eefbd 292 */
okini3939 0:8ba6230eefbd 293 # if 1
okini3939 0:8ba6230eefbd 294 /*
okini3939 0:8ba6230eefbd 295 * This is faster than the default implementation via MAD_F_MLX() and
okini3939 0:8ba6230eefbd 296 * mad_f_scale64().
okini3939 0:8ba6230eefbd 297 */
okini3939 0:8ba6230eefbd 298 # define mad_f_mul(x, y) \
okini3939 0:8ba6230eefbd 299 ({ mad_fixed64hi_t __hi; \
okini3939 0:8ba6230eefbd 300 mad_fixed64lo_t __lo; \
okini3939 0:8ba6230eefbd 301 mad_fixed_t __result; \
okini3939 0:8ba6230eefbd 302 asm ("smull %0, %1, %3, %4\n\t" \
okini3939 0:8ba6230eefbd 303 "movs %0, %0, lsr %5\n\t" \
okini3939 0:8ba6230eefbd 304 "adc %2, %0, %1, lsl %6" \
okini3939 0:8ba6230eefbd 305 : "=&r" (__lo), "=&r" (__hi), "=r" (__result) \
okini3939 0:8ba6230eefbd 306 : "%r" (x), "r" (y), \
okini3939 0:8ba6230eefbd 307 "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \
okini3939 0:8ba6230eefbd 308 : "cc"); \
okini3939 0:8ba6230eefbd 309 __result; \
okini3939 0:8ba6230eefbd 310 })
okini3939 0:8ba6230eefbd 311 # endif
okini3939 0:8ba6230eefbd 312
okini3939 0:8ba6230eefbd 313 # define MAD_F_MLX(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 314 asm ("smull %0, %1, %2, %3" \
okini3939 0:8ba6230eefbd 315 : "=&r" (lo), "=&r" (hi) \
okini3939 0:8ba6230eefbd 316 : "%r" (x), "r" (y))
okini3939 0:8ba6230eefbd 317
okini3939 0:8ba6230eefbd 318 # define MAD_F_MLA(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 319 asm ("smlal %0, %1, %2, %3" \
okini3939 0:8ba6230eefbd 320 : "+r" (lo), "+r" (hi) \
okini3939 0:8ba6230eefbd 321 : "%r" (x), "r" (y))
okini3939 0:8ba6230eefbd 322
okini3939 0:8ba6230eefbd 323 # define MAD_F_MLN(hi, lo) \
okini3939 0:8ba6230eefbd 324 asm ("rsbs %0, %2, #0\n\t" \
okini3939 0:8ba6230eefbd 325 "rsc %1, %3, #0" \
okini3939 0:8ba6230eefbd 326 : "=r" (lo), "=r" (hi) \
okini3939 0:8ba6230eefbd 327 : "0" (lo), "1" (hi) \
okini3939 0:8ba6230eefbd 328 : "cc")
okini3939 0:8ba6230eefbd 329
okini3939 0:8ba6230eefbd 330 # define mad_f_scale64(hi, lo) \
okini3939 0:8ba6230eefbd 331 ({ mad_fixed_t __result; \
okini3939 0:8ba6230eefbd 332 asm ("movs %0, %1, lsr %3\n\t" \
okini3939 0:8ba6230eefbd 333 "adc %0, %0, %2, lsl %4" \
okini3939 0:8ba6230eefbd 334 : "=&r" (__result) \
okini3939 0:8ba6230eefbd 335 : "r" (lo), "r" (hi), \
okini3939 0:8ba6230eefbd 336 "M" (MAD_F_SCALEBITS), "M" (32 - MAD_F_SCALEBITS) \
okini3939 0:8ba6230eefbd 337 : "cc"); \
okini3939 0:8ba6230eefbd 338 __result; \
okini3939 0:8ba6230eefbd 339 })
okini3939 0:8ba6230eefbd 340
okini3939 0:8ba6230eefbd 341 # define MAD_F_SCALEBITS MAD_F_FRACBITS
okini3939 0:8ba6230eefbd 342
okini3939 0:8ba6230eefbd 343 /* --- MIPS ---------------------------------------------------------------- */
okini3939 0:8ba6230eefbd 344
okini3939 0:8ba6230eefbd 345 # elif defined(FPM_MIPS)
okini3939 0:8ba6230eefbd 346
okini3939 0:8ba6230eefbd 347 /*
okini3939 0:8ba6230eefbd 348 * This MIPS version is fast and accurate; the disposition of the least
okini3939 0:8ba6230eefbd 349 * significant bit depends on OPT_ACCURACY via mad_f_scale64().
okini3939 0:8ba6230eefbd 350 */
okini3939 0:8ba6230eefbd 351 # define MAD_F_MLX(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 352 asm ("mult %2,%3" \
okini3939 0:8ba6230eefbd 353 : "=l" (lo), "=h" (hi) \
okini3939 0:8ba6230eefbd 354 : "%r" (x), "r" (y))
okini3939 0:8ba6230eefbd 355
okini3939 0:8ba6230eefbd 356 # if defined(HAVE_MADD_ASM)
okini3939 0:8ba6230eefbd 357 # define MAD_F_MLA(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 358 asm ("madd %2,%3" \
okini3939 0:8ba6230eefbd 359 : "+l" (lo), "+h" (hi) \
okini3939 0:8ba6230eefbd 360 : "%r" (x), "r" (y))
okini3939 0:8ba6230eefbd 361 # elif defined(HAVE_MADD16_ASM)
okini3939 0:8ba6230eefbd 362 /*
okini3939 0:8ba6230eefbd 363 * This loses significant accuracy due to the 16-bit integer limit in the
okini3939 0:8ba6230eefbd 364 * multiply/accumulate instruction.
okini3939 0:8ba6230eefbd 365 */
okini3939 0:8ba6230eefbd 366 # define MAD_F_ML0(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 367 asm ("mult %2,%3" \
okini3939 0:8ba6230eefbd 368 : "=l" (lo), "=h" (hi) \
okini3939 0:8ba6230eefbd 369 : "%r" ((x) >> 12), "r" ((y) >> 16))
okini3939 0:8ba6230eefbd 370 # define MAD_F_MLA(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 371 asm ("madd16 %2,%3" \
okini3939 0:8ba6230eefbd 372 : "+l" (lo), "+h" (hi) \
okini3939 0:8ba6230eefbd 373 : "%r" ((x) >> 12), "r" ((y) >> 16))
okini3939 0:8ba6230eefbd 374 # define MAD_F_MLZ(hi, lo) ((mad_fixed_t) (lo))
okini3939 0:8ba6230eefbd 375 # endif
okini3939 0:8ba6230eefbd 376
okini3939 0:8ba6230eefbd 377 # if defined(OPT_SPEED)
okini3939 0:8ba6230eefbd 378 # define mad_f_scale64(hi, lo) \
okini3939 0:8ba6230eefbd 379 ((mad_fixed_t) ((hi) << (32 - MAD_F_SCALEBITS)))
okini3939 0:8ba6230eefbd 380 # define MAD_F_SCALEBITS MAD_F_FRACBITS
okini3939 0:8ba6230eefbd 381 # endif
okini3939 0:8ba6230eefbd 382
okini3939 0:8ba6230eefbd 383 /* --- SPARC --------------------------------------------------------------- */
okini3939 0:8ba6230eefbd 384
okini3939 0:8ba6230eefbd 385 # elif defined(FPM_SPARC)
okini3939 0:8ba6230eefbd 386
okini3939 0:8ba6230eefbd 387 /*
okini3939 0:8ba6230eefbd 388 * This SPARC V8 version is fast and accurate; the disposition of the least
okini3939 0:8ba6230eefbd 389 * significant bit depends on OPT_ACCURACY via mad_f_scale64().
okini3939 0:8ba6230eefbd 390 */
okini3939 0:8ba6230eefbd 391 # define MAD_F_MLX(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 392 asm ("smul %2, %3, %0\n\t" \
okini3939 0:8ba6230eefbd 393 "rd %%y, %1" \
okini3939 0:8ba6230eefbd 394 : "=r" (lo), "=r" (hi) \
okini3939 0:8ba6230eefbd 395 : "%r" (x), "rI" (y))
okini3939 0:8ba6230eefbd 396
okini3939 0:8ba6230eefbd 397 /* --- PowerPC ------------------------------------------------------------- */
okini3939 0:8ba6230eefbd 398
okini3939 0:8ba6230eefbd 399 # elif defined(FPM_PPC)
okini3939 0:8ba6230eefbd 400
okini3939 0:8ba6230eefbd 401 /*
okini3939 0:8ba6230eefbd 402 * This PowerPC version is fast and accurate; the disposition of the least
okini3939 0:8ba6230eefbd 403 * significant bit depends on OPT_ACCURACY via mad_f_scale64().
okini3939 0:8ba6230eefbd 404 */
okini3939 0:8ba6230eefbd 405 # define MAD_F_MLX(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 406 do { \
okini3939 0:8ba6230eefbd 407 asm ("mullw %0,%1,%2" \
okini3939 0:8ba6230eefbd 408 : "=r" (lo) \
okini3939 0:8ba6230eefbd 409 : "%r" (x), "r" (y)); \
okini3939 0:8ba6230eefbd 410 asm ("mulhw %0,%1,%2" \
okini3939 0:8ba6230eefbd 411 : "=r" (hi) \
okini3939 0:8ba6230eefbd 412 : "%r" (x), "r" (y)); \
okini3939 0:8ba6230eefbd 413 } \
okini3939 0:8ba6230eefbd 414 while (0)
okini3939 0:8ba6230eefbd 415
okini3939 0:8ba6230eefbd 416 # if defined(OPT_ACCURACY)
okini3939 0:8ba6230eefbd 417 /*
okini3939 0:8ba6230eefbd 418 * This gives best accuracy but is not very fast.
okini3939 0:8ba6230eefbd 419 */
okini3939 0:8ba6230eefbd 420 # define MAD_F_MLA(hi, lo, x, y) \
okini3939 0:8ba6230eefbd 421 ({ mad_fixed64hi_t __hi; \
okini3939 0:8ba6230eefbd 422 mad_fixed64lo_t __lo; \
okini3939 0:8ba6230eefbd 423 MAD_F_MLX(__hi, __lo, (x), (y)); \
okini3939 0:8ba6230eefbd 424 asm ("addc %0,%2,%3\n\t" \
okini3939 0:8ba6230eefbd 425 "adde %1,%4,%5" \
okini3939 0:8ba6230eefbd 426 : "=r" (lo), "=r" (hi) \
okini3939 0:8ba6230eefbd 427 : "%r" (lo), "r" (__lo), \
okini3939 0:8ba6230eefbd 428 "%r" (hi), "r" (__hi) \
okini3939 0:8ba6230eefbd 429 : "xer"); \
okini3939 0:8ba6230eefbd 430 })
okini3939 0:8ba6230eefbd 431 # endif
okini3939 0:8ba6230eefbd 432
okini3939 0:8ba6230eefbd 433 # if defined(OPT_ACCURACY)
okini3939 0:8ba6230eefbd 434 /*
okini3939 0:8ba6230eefbd 435 * This is slower than the truncating version below it.
okini3939 0:8ba6230eefbd 436 */
okini3939 0:8ba6230eefbd 437 # define mad_f_scale64(hi, lo) \
okini3939 0:8ba6230eefbd 438 ({ mad_fixed_t __result, __round; \
okini3939 0:8ba6230eefbd 439 asm ("rotrwi %0,%1,%2" \
okini3939 0:8ba6230eefbd 440 : "=r" (__result) \
okini3939 0:8ba6230eefbd 441 : "r" (lo), "i" (MAD_F_SCALEBITS)); \
okini3939 0:8ba6230eefbd 442 asm ("extrwi %0,%1,1,0" \
okini3939 0:8ba6230eefbd 443 : "=r" (__round) \
okini3939 0:8ba6230eefbd 444 : "r" (__result)); \
okini3939 0:8ba6230eefbd 445 asm ("insrwi %0,%1,%2,0" \
okini3939 0:8ba6230eefbd 446 : "+r" (__result) \
okini3939 0:8ba6230eefbd 447 : "r" (hi), "i" (MAD_F_SCALEBITS)); \
okini3939 0:8ba6230eefbd 448 asm ("add %0,%1,%2" \
okini3939 0:8ba6230eefbd 449 : "=r" (__result) \
okini3939 0:8ba6230eefbd 450 : "%r" (__result), "r" (__round)); \
okini3939 0:8ba6230eefbd 451 __result; \
okini3939 0:8ba6230eefbd 452 })
okini3939 0:8ba6230eefbd 453 # else
okini3939 0:8ba6230eefbd 454 # define mad_f_scale64(hi, lo) \
okini3939 0:8ba6230eefbd 455 ({ mad_fixed_t __result; \
okini3939 0:8ba6230eefbd 456 asm ("rotrwi %0,%1,%2" \
okini3939 0:8ba6230eefbd 457 : "=r" (__result) \
okini3939 0:8ba6230eefbd 458 : "r" (lo), "i" (MAD_F_SCALEBITS)); \
okini3939 0:8ba6230eefbd 459 asm ("insrwi %0,%1,%2,0" \
okini3939 0:8ba6230eefbd 460 : "+r" (__result) \
okini3939 0:8ba6230eefbd 461 : "r" (hi), "i" (MAD_F_SCALEBITS)); \
okini3939 0:8ba6230eefbd 462 __result; \
okini3939 0:8ba6230eefbd 463 })
okini3939 0:8ba6230eefbd 464 # endif
okini3939 0:8ba6230eefbd 465
okini3939 0:8ba6230eefbd 466 # define MAD_F_SCALEBITS MAD_F_FRACBITS
okini3939 0:8ba6230eefbd 467
okini3939 0:8ba6230eefbd 468 /* --- Default ------------------------------------------------------------- */
okini3939 0:8ba6230eefbd 469
okini3939 0:8ba6230eefbd 470 # elif defined(FPM_DEFAULT)
okini3939 0:8ba6230eefbd 471
okini3939 0:8ba6230eefbd 472 /*
okini3939 0:8ba6230eefbd 473 * This version is the most portable but it loses significant accuracy.
okini3939 0:8ba6230eefbd 474 * Furthermore, accuracy is biased against the second argument, so care
okini3939 0:8ba6230eefbd 475 * should be taken when ordering operands.
okini3939 0:8ba6230eefbd 476 *
okini3939 0:8ba6230eefbd 477 * The scale factors are constant as this is not used with SSO.
okini3939 0:8ba6230eefbd 478 *
okini3939 0:8ba6230eefbd 479 * Pre-rounding is required to stay within the limits of compliance.
okini3939 0:8ba6230eefbd 480 */
okini3939 0:8ba6230eefbd 481 # if defined(OPT_SPEED)
okini3939 0:8ba6230eefbd 482 # define mad_f_mul(x, y) (((x) >> 12) * ((y) >> 16))
okini3939 0:8ba6230eefbd 483 # else
okini3939 0:8ba6230eefbd 484 # define mad_f_mul(x, y) ((((x) + (1L << 11)) >> 12) * \
okini3939 0:8ba6230eefbd 485 (((y) + (1L << 15)) >> 16))
okini3939 0:8ba6230eefbd 486 # endif
okini3939 0:8ba6230eefbd 487
okini3939 0:8ba6230eefbd 488 /* ------------------------------------------------------------------------- */
okini3939 0:8ba6230eefbd 489
okini3939 0:8ba6230eefbd 490 # else
okini3939 0:8ba6230eefbd 491 # error "no FPM selected"
okini3939 0:8ba6230eefbd 492 # endif
okini3939 0:8ba6230eefbd 493
okini3939 0:8ba6230eefbd 494 /* default implementations */
okini3939 0:8ba6230eefbd 495
okini3939 0:8ba6230eefbd 496 # if !defined(mad_f_mul)
okini3939 0:8ba6230eefbd 497 # define mad_f_mul(x, y) \
okini3939 0:8ba6230eefbd 498 ({ register mad_fixed64hi_t __hi; \
okini3939 0:8ba6230eefbd 499 register mad_fixed64lo_t __lo; \
okini3939 0:8ba6230eefbd 500 MAD_F_MLX(__hi, __lo, (x), (y)); \
okini3939 0:8ba6230eefbd 501 mad_f_scale64(__hi, __lo); \
okini3939 0:8ba6230eefbd 502 })
okini3939 0:8ba6230eefbd 503 # endif
okini3939 0:8ba6230eefbd 504
okini3939 0:8ba6230eefbd 505 # if !defined(MAD_F_MLA)
okini3939 0:8ba6230eefbd 506 # define MAD_F_ML0(hi, lo, x, y) ((lo) = mad_f_mul((x), (y)))
okini3939 0:8ba6230eefbd 507 # define MAD_F_MLA(hi, lo, x, y) ((lo) += mad_f_mul((x), (y)))
okini3939 0:8ba6230eefbd 508 # define MAD_F_MLN(hi, lo) ((lo) = -(lo))
okini3939 0:8ba6230eefbd 509 # define MAD_F_MLZ(hi, lo) ((void) (hi), (mad_fixed_t) (lo))
okini3939 0:8ba6230eefbd 510 # endif
okini3939 0:8ba6230eefbd 511
okini3939 0:8ba6230eefbd 512 # if !defined(MAD_F_ML0)
okini3939 0:8ba6230eefbd 513 # define MAD_F_ML0(hi, lo, x, y) MAD_F_MLX((hi), (lo), (x), (y))
okini3939 0:8ba6230eefbd 514 # endif
okini3939 0:8ba6230eefbd 515
okini3939 0:8ba6230eefbd 516 # if !defined(MAD_F_MLN)
okini3939 0:8ba6230eefbd 517 # define MAD_F_MLN(hi, lo) ((hi) = ((lo) = -(lo)) ? ~(hi) : -(hi))
okini3939 0:8ba6230eefbd 518 # endif
okini3939 0:8ba6230eefbd 519
okini3939 0:8ba6230eefbd 520 # if !defined(MAD_F_MLZ)
okini3939 0:8ba6230eefbd 521 # define MAD_F_MLZ(hi, lo) mad_f_scale64((hi), (lo))
okini3939 0:8ba6230eefbd 522 # endif
okini3939 0:8ba6230eefbd 523
okini3939 0:8ba6230eefbd 524 # if !defined(mad_f_scale64)
okini3939 0:8ba6230eefbd 525 # if defined(OPT_ACCURACY)
okini3939 0:8ba6230eefbd 526 # define mad_f_scale64(hi, lo) \
okini3939 0:8ba6230eefbd 527 ((((mad_fixed_t) \
okini3939 0:8ba6230eefbd 528 (((hi) << (32 - (MAD_F_SCALEBITS - 1))) | \
okini3939 0:8ba6230eefbd 529 ((lo) >> (MAD_F_SCALEBITS - 1)))) + 1) >> 1)
okini3939 0:8ba6230eefbd 530 # else
okini3939 0:8ba6230eefbd 531 # define mad_f_scale64(hi, lo) \
okini3939 0:8ba6230eefbd 532 ((mad_fixed_t) \
okini3939 0:8ba6230eefbd 533 (((hi) << (32 - MAD_F_SCALEBITS)) | \
okini3939 0:8ba6230eefbd 534 ((lo) >> MAD_F_SCALEBITS)))
okini3939 0:8ba6230eefbd 535 # endif
okini3939 0:8ba6230eefbd 536 # define MAD_F_SCALEBITS MAD_F_FRACBITS
okini3939 0:8ba6230eefbd 537 # endif
okini3939 0:8ba6230eefbd 538
okini3939 0:8ba6230eefbd 539 /* C routines */
okini3939 0:8ba6230eefbd 540
okini3939 0:8ba6230eefbd 541 mad_fixed_t mad_f_abs(mad_fixed_t);
okini3939 0:8ba6230eefbd 542 mad_fixed_t mad_f_div(mad_fixed_t, mad_fixed_t);
okini3939 0:8ba6230eefbd 543
okini3939 0:8ba6230eefbd 544 # endif
okini3939 0:8ba6230eefbd 545
okini3939 0:8ba6230eefbd 546 /* Id: bit.h,v 1.12 2004/01/23 09:41:32 rob Exp */
okini3939 0:8ba6230eefbd 547
okini3939 0:8ba6230eefbd 548 # ifndef LIBMAD_BIT_H
okini3939 0:8ba6230eefbd 549 # define LIBMAD_BIT_H
okini3939 0:8ba6230eefbd 550
okini3939 0:8ba6230eefbd 551 struct mad_bitptr {
okini3939 0:8ba6230eefbd 552 unsigned char const *byte;
okini3939 0:8ba6230eefbd 553 unsigned short cache;
okini3939 0:8ba6230eefbd 554 unsigned short left;
okini3939 0:8ba6230eefbd 555 };
okini3939 0:8ba6230eefbd 556
okini3939 0:8ba6230eefbd 557 void mad_bit_init(struct mad_bitptr *, unsigned char const *);
okini3939 0:8ba6230eefbd 558
okini3939 0:8ba6230eefbd 559 # define mad_bit_finish(bitptr) /* nothing */
okini3939 0:8ba6230eefbd 560
okini3939 0:8ba6230eefbd 561 unsigned int mad_bit_length(struct mad_bitptr const *,
okini3939 0:8ba6230eefbd 562 struct mad_bitptr const *);
okini3939 0:8ba6230eefbd 563
okini3939 0:8ba6230eefbd 564 # define mad_bit_bitsleft(bitptr) ((bitptr)->left)
okini3939 0:8ba6230eefbd 565 unsigned char const *mad_bit_nextbyte(struct mad_bitptr const *);
okini3939 0:8ba6230eefbd 566
okini3939 0:8ba6230eefbd 567 void mad_bit_skip(struct mad_bitptr *, unsigned int);
okini3939 0:8ba6230eefbd 568 unsigned long mad_bit_read(struct mad_bitptr *, unsigned int);
okini3939 0:8ba6230eefbd 569 void mad_bit_write(struct mad_bitptr *, unsigned int, unsigned long);
okini3939 0:8ba6230eefbd 570
okini3939 0:8ba6230eefbd 571 unsigned short mad_bit_crc(struct mad_bitptr, unsigned int, unsigned short);
okini3939 0:8ba6230eefbd 572
okini3939 0:8ba6230eefbd 573 # endif
okini3939 0:8ba6230eefbd 574
okini3939 0:8ba6230eefbd 575 /* Id: timer.h,v 1.16 2004/01/23 09:41:33 rob Exp */
okini3939 0:8ba6230eefbd 576
okini3939 0:8ba6230eefbd 577 # ifndef LIBMAD_TIMER_H
okini3939 0:8ba6230eefbd 578 # define LIBMAD_TIMER_H
okini3939 0:8ba6230eefbd 579
okini3939 0:8ba6230eefbd 580 typedef struct {
okini3939 0:8ba6230eefbd 581 signed long seconds; /* whole seconds */
okini3939 0:8ba6230eefbd 582 unsigned long fraction; /* 1/MAD_TIMER_RESOLUTION seconds */
okini3939 0:8ba6230eefbd 583 } mad_timer_t;
okini3939 0:8ba6230eefbd 584
okini3939 0:8ba6230eefbd 585 extern mad_timer_t const mad_timer_zero;
okini3939 0:8ba6230eefbd 586
okini3939 0:8ba6230eefbd 587 # define MAD_TIMER_RESOLUTION 352800000UL
okini3939 0:8ba6230eefbd 588
okini3939 0:8ba6230eefbd 589 enum mad_units {
okini3939 0:8ba6230eefbd 590 MAD_UNITS_HOURS = -2,
okini3939 0:8ba6230eefbd 591 MAD_UNITS_MINUTES = -1,
okini3939 0:8ba6230eefbd 592 MAD_UNITS_SECONDS = 0,
okini3939 0:8ba6230eefbd 593
okini3939 0:8ba6230eefbd 594 /* metric units */
okini3939 0:8ba6230eefbd 595
okini3939 0:8ba6230eefbd 596 MAD_UNITS_DECISECONDS = 10,
okini3939 0:8ba6230eefbd 597 MAD_UNITS_CENTISECONDS = 100,
okini3939 0:8ba6230eefbd 598 MAD_UNITS_MILLISECONDS = 1000,
okini3939 0:8ba6230eefbd 599
okini3939 0:8ba6230eefbd 600 /* audio sample units */
okini3939 0:8ba6230eefbd 601
okini3939 0:8ba6230eefbd 602 MAD_UNITS_8000_HZ = 8000,
okini3939 0:8ba6230eefbd 603 MAD_UNITS_11025_HZ = 11025,
okini3939 0:8ba6230eefbd 604 MAD_UNITS_12000_HZ = 12000,
okini3939 0:8ba6230eefbd 605
okini3939 0:8ba6230eefbd 606 MAD_UNITS_16000_HZ = 16000,
okini3939 0:8ba6230eefbd 607 MAD_UNITS_22050_HZ = 22050,
okini3939 0:8ba6230eefbd 608 MAD_UNITS_24000_HZ = 24000,
okini3939 0:8ba6230eefbd 609
okini3939 0:8ba6230eefbd 610 MAD_UNITS_32000_HZ = 32000,
okini3939 0:8ba6230eefbd 611 MAD_UNITS_44100_HZ = 44100,
okini3939 0:8ba6230eefbd 612 MAD_UNITS_48000_HZ = 48000,
okini3939 0:8ba6230eefbd 613
okini3939 0:8ba6230eefbd 614 /* video frame/field units */
okini3939 0:8ba6230eefbd 615
okini3939 0:8ba6230eefbd 616 MAD_UNITS_24_FPS = 24,
okini3939 0:8ba6230eefbd 617 MAD_UNITS_25_FPS = 25,
okini3939 0:8ba6230eefbd 618 MAD_UNITS_30_FPS = 30,
okini3939 0:8ba6230eefbd 619 MAD_UNITS_48_FPS = 48,
okini3939 0:8ba6230eefbd 620 MAD_UNITS_50_FPS = 50,
okini3939 0:8ba6230eefbd 621 MAD_UNITS_60_FPS = 60,
okini3939 0:8ba6230eefbd 622
okini3939 0:8ba6230eefbd 623 /* CD audio frames */
okini3939 0:8ba6230eefbd 624
okini3939 0:8ba6230eefbd 625 MAD_UNITS_75_FPS = 75,
okini3939 0:8ba6230eefbd 626
okini3939 0:8ba6230eefbd 627 /* video drop-frame units */
okini3939 0:8ba6230eefbd 628
okini3939 0:8ba6230eefbd 629 MAD_UNITS_23_976_FPS = -24,
okini3939 0:8ba6230eefbd 630 MAD_UNITS_24_975_FPS = -25,
okini3939 0:8ba6230eefbd 631 MAD_UNITS_29_97_FPS = -30,
okini3939 0:8ba6230eefbd 632 MAD_UNITS_47_952_FPS = -48,
okini3939 0:8ba6230eefbd 633 MAD_UNITS_49_95_FPS = -50,
okini3939 0:8ba6230eefbd 634 MAD_UNITS_59_94_FPS = -60
okini3939 0:8ba6230eefbd 635 };
okini3939 0:8ba6230eefbd 636
okini3939 0:8ba6230eefbd 637 # define mad_timer_reset(timer) ((void) (*(timer) = mad_timer_zero))
okini3939 0:8ba6230eefbd 638
okini3939 0:8ba6230eefbd 639 int mad_timer_compare(mad_timer_t, mad_timer_t);
okini3939 0:8ba6230eefbd 640
okini3939 0:8ba6230eefbd 641 # define mad_timer_sign(timer) mad_timer_compare((timer), mad_timer_zero)
okini3939 0:8ba6230eefbd 642
okini3939 0:8ba6230eefbd 643 void mad_timer_negate(mad_timer_t *);
okini3939 0:8ba6230eefbd 644 mad_timer_t mad_timer_abs(mad_timer_t);
okini3939 0:8ba6230eefbd 645
okini3939 0:8ba6230eefbd 646 void mad_timer_set(mad_timer_t *, unsigned long, unsigned long, unsigned long);
okini3939 0:8ba6230eefbd 647 void mad_timer_add(mad_timer_t *, mad_timer_t);
okini3939 0:8ba6230eefbd 648 void mad_timer_multiply(mad_timer_t *, signed long);
okini3939 0:8ba6230eefbd 649
okini3939 0:8ba6230eefbd 650 signed long mad_timer_count(mad_timer_t, enum mad_units);
okini3939 0:8ba6230eefbd 651 unsigned long mad_timer_fraction(mad_timer_t, unsigned long);
okini3939 0:8ba6230eefbd 652 void mad_timer_string(mad_timer_t, char *, char const *,
okini3939 0:8ba6230eefbd 653 enum mad_units, enum mad_units, unsigned long);
okini3939 0:8ba6230eefbd 654
okini3939 0:8ba6230eefbd 655 # endif
okini3939 0:8ba6230eefbd 656
okini3939 0:8ba6230eefbd 657 /* Id: stream.h,v 1.20 2004/02/05 09:02:39 rob Exp */
okini3939 0:8ba6230eefbd 658
okini3939 0:8ba6230eefbd 659 # ifndef LIBMAD_STREAM_H
okini3939 0:8ba6230eefbd 660 # define LIBMAD_STREAM_H
okini3939 0:8ba6230eefbd 661
okini3939 0:8ba6230eefbd 662
okini3939 0:8ba6230eefbd 663 # define MAD_BUFFER_GUARD 8
okini3939 0:8ba6230eefbd 664 # define MAD_BUFFER_MDLEN (511 + 2048 + MAD_BUFFER_GUARD)
okini3939 0:8ba6230eefbd 665
okini3939 0:8ba6230eefbd 666 enum mad_error {
okini3939 0:8ba6230eefbd 667 MAD_ERROR_NONE = 0x0000, /* no error */
okini3939 0:8ba6230eefbd 668
okini3939 0:8ba6230eefbd 669 MAD_ERROR_BUFLEN = 0x0001, /* input buffer too small (or EOF) */
okini3939 0:8ba6230eefbd 670 MAD_ERROR_BUFPTR = 0x0002, /* invalid (null) buffer pointer */
okini3939 0:8ba6230eefbd 671
okini3939 0:8ba6230eefbd 672 MAD_ERROR_NOMEM = 0x0031, /* not enough memory */
okini3939 0:8ba6230eefbd 673
okini3939 0:8ba6230eefbd 674 MAD_ERROR_LOSTSYNC = 0x0101, /* lost synchronization */
okini3939 0:8ba6230eefbd 675 MAD_ERROR_BADLAYER = 0x0102, /* reserved header layer value */
okini3939 0:8ba6230eefbd 676 MAD_ERROR_BADBITRATE = 0x0103, /* forbidden bitrate value */
okini3939 0:8ba6230eefbd 677 MAD_ERROR_BADSAMPLERATE = 0x0104, /* reserved sample frequency value */
okini3939 0:8ba6230eefbd 678 MAD_ERROR_BADEMPHASIS = 0x0105, /* reserved emphasis value */
okini3939 0:8ba6230eefbd 679
okini3939 0:8ba6230eefbd 680 MAD_ERROR_BADCRC = 0x0201, /* CRC check failed */
okini3939 0:8ba6230eefbd 681 MAD_ERROR_BADBITALLOC = 0x0211, /* forbidden bit allocation value */
okini3939 0:8ba6230eefbd 682 MAD_ERROR_BADSCALEFACTOR = 0x0221, /* bad scalefactor index */
okini3939 0:8ba6230eefbd 683 MAD_ERROR_BADMODE = 0x0222, /* bad bitrate/mode combination */
okini3939 0:8ba6230eefbd 684 MAD_ERROR_BADFRAMELEN = 0x0231, /* bad frame length */
okini3939 0:8ba6230eefbd 685 MAD_ERROR_BADBIGVALUES = 0x0232, /* bad big_values count */
okini3939 0:8ba6230eefbd 686 MAD_ERROR_BADBLOCKTYPE = 0x0233, /* reserved block_type */
okini3939 0:8ba6230eefbd 687 MAD_ERROR_BADSCFSI = 0x0234, /* bad scalefactor selection info */
okini3939 0:8ba6230eefbd 688 MAD_ERROR_BADDATAPTR = 0x0235, /* bad main_data_begin pointer */
okini3939 0:8ba6230eefbd 689 MAD_ERROR_BADPART3LEN = 0x0236, /* bad audio data length */
okini3939 0:8ba6230eefbd 690 MAD_ERROR_BADHUFFTABLE = 0x0237, /* bad Huffman table select */
okini3939 0:8ba6230eefbd 691 MAD_ERROR_BADHUFFDATA = 0x0238, /* Huffman data overrun */
okini3939 0:8ba6230eefbd 692 MAD_ERROR_BADSTEREO = 0x0239 /* incompatible block_type for JS */
okini3939 0:8ba6230eefbd 693 };
okini3939 0:8ba6230eefbd 694
okini3939 0:8ba6230eefbd 695 # define MAD_RECOVERABLE(error) ((error) & 0xff00)
okini3939 0:8ba6230eefbd 696
okini3939 0:8ba6230eefbd 697 struct mad_stream {
okini3939 0:8ba6230eefbd 698 unsigned char const *buffer; /* input bitstream buffer */
okini3939 0:8ba6230eefbd 699 unsigned char const *bufend; /* end of buffer */
okini3939 0:8ba6230eefbd 700 unsigned long skiplen; /* bytes to skip before next frame */
okini3939 0:8ba6230eefbd 701
okini3939 0:8ba6230eefbd 702 int sync; /* stream sync found */
okini3939 0:8ba6230eefbd 703 unsigned long freerate; /* free bitrate (fixed) */
okini3939 0:8ba6230eefbd 704
okini3939 0:8ba6230eefbd 705 unsigned char const *this_frame; /* start of current frame */
okini3939 0:8ba6230eefbd 706 unsigned char const *next_frame; /* start of next frame */
okini3939 0:8ba6230eefbd 707 struct mad_bitptr ptr; /* current processing bit pointer */
okini3939 0:8ba6230eefbd 708
okini3939 0:8ba6230eefbd 709 struct mad_bitptr anc_ptr; /* ancillary bits pointer */
okini3939 0:8ba6230eefbd 710 unsigned int anc_bitlen; /* number of ancillary bits */
okini3939 0:8ba6230eefbd 711
okini3939 0:8ba6230eefbd 712 unsigned char (*main_data)[MAD_BUFFER_MDLEN];
okini3939 0:8ba6230eefbd 713 /* Layer III main_data() */
okini3939 0:8ba6230eefbd 714 unsigned int md_len; /* bytes in main_data */
okini3939 0:8ba6230eefbd 715
okini3939 0:8ba6230eefbd 716 int options; /* decoding options (see below) */
okini3939 0:8ba6230eefbd 717 enum mad_error error; /* error code (see above) */
okini3939 0:8ba6230eefbd 718 };
okini3939 0:8ba6230eefbd 719
okini3939 0:8ba6230eefbd 720 enum {
okini3939 0:8ba6230eefbd 721 MAD_OPTION_IGNORECRC = 0x0001, /* ignore CRC errors */
okini3939 0:8ba6230eefbd 722 MAD_OPTION_HALFSAMPLERATE = 0x0002 /* generate PCM at 1/2 sample rate */
okini3939 0:8ba6230eefbd 723 # if 0 /* not yet implemented */
okini3939 0:8ba6230eefbd 724 MAD_OPTION_LEFTCHANNEL = 0x0010, /* decode left channel only */
okini3939 0:8ba6230eefbd 725 MAD_OPTION_RIGHTCHANNEL = 0x0020, /* decode right channel only */
okini3939 0:8ba6230eefbd 726 MAD_OPTION_SINGLECHANNEL = 0x0030 /* combine channels */
okini3939 0:8ba6230eefbd 727 # endif
okini3939 0:8ba6230eefbd 728 };
okini3939 0:8ba6230eefbd 729
okini3939 0:8ba6230eefbd 730 void mad_stream_init(struct mad_stream *);
okini3939 0:8ba6230eefbd 731 void mad_stream_finish(struct mad_stream *);
okini3939 0:8ba6230eefbd 732
okini3939 0:8ba6230eefbd 733 # define mad_stream_options(stream, opts) \
okini3939 0:8ba6230eefbd 734 ((void) ((stream)->options = (opts)))
okini3939 0:8ba6230eefbd 735
okini3939 0:8ba6230eefbd 736 void mad_stream_buffer(struct mad_stream *,
okini3939 0:8ba6230eefbd 737 unsigned char const *, unsigned long);
okini3939 0:8ba6230eefbd 738 void mad_stream_skip(struct mad_stream *, unsigned long);
okini3939 0:8ba6230eefbd 739
okini3939 0:8ba6230eefbd 740 int mad_stream_sync(struct mad_stream *);
okini3939 0:8ba6230eefbd 741
okini3939 0:8ba6230eefbd 742 char const *mad_stream_errorstr(struct mad_stream const *);
okini3939 0:8ba6230eefbd 743
okini3939 0:8ba6230eefbd 744 # endif
okini3939 0:8ba6230eefbd 745
okini3939 0:8ba6230eefbd 746 /* Id: frame.h,v 1.20 2004/01/23 09:41:32 rob Exp */
okini3939 0:8ba6230eefbd 747
okini3939 0:8ba6230eefbd 748 # ifndef LIBMAD_FRAME_H
okini3939 0:8ba6230eefbd 749 # define LIBMAD_FRAME_H
okini3939 0:8ba6230eefbd 750
okini3939 0:8ba6230eefbd 751
okini3939 0:8ba6230eefbd 752 enum mad_layer {
okini3939 0:8ba6230eefbd 753 MAD_LAYER_I = 1, /* Layer I */
okini3939 0:8ba6230eefbd 754 MAD_LAYER_II = 2, /* Layer II */
okini3939 0:8ba6230eefbd 755 MAD_LAYER_III = 3 /* Layer III */
okini3939 0:8ba6230eefbd 756 };
okini3939 0:8ba6230eefbd 757
okini3939 0:8ba6230eefbd 758 enum mad_mode {
okini3939 0:8ba6230eefbd 759 MAD_MODE_SINGLE_CHANNEL = 0, /* single channel */
okini3939 0:8ba6230eefbd 760 MAD_MODE_DUAL_CHANNEL = 1, /* dual channel */
okini3939 0:8ba6230eefbd 761 MAD_MODE_JOINT_STEREO = 2, /* joint (MS/intensity) stereo */
okini3939 0:8ba6230eefbd 762 MAD_MODE_STEREO = 3 /* normal LR stereo */
okini3939 0:8ba6230eefbd 763 };
okini3939 0:8ba6230eefbd 764
okini3939 0:8ba6230eefbd 765 enum mad_emphasis {
okini3939 0:8ba6230eefbd 766 MAD_EMPHASIS_NONE = 0, /* no emphasis */
okini3939 0:8ba6230eefbd 767 MAD_EMPHASIS_50_15_US = 1, /* 50/15 microseconds emphasis */
okini3939 0:8ba6230eefbd 768 MAD_EMPHASIS_CCITT_J_17 = 3, /* CCITT J.17 emphasis */
okini3939 0:8ba6230eefbd 769 MAD_EMPHASIS_RESERVED = 2 /* unknown emphasis */
okini3939 0:8ba6230eefbd 770 };
okini3939 0:8ba6230eefbd 771
okini3939 0:8ba6230eefbd 772 struct mad_header {
okini3939 0:8ba6230eefbd 773 enum mad_layer layer; /* audio layer (1, 2, or 3) */
okini3939 0:8ba6230eefbd 774 enum mad_mode mode; /* channel mode (see above) */
okini3939 0:8ba6230eefbd 775 int mode_extension; /* additional mode info */
okini3939 0:8ba6230eefbd 776 enum mad_emphasis emphasis; /* de-emphasis to use (see above) */
okini3939 0:8ba6230eefbd 777
okini3939 0:8ba6230eefbd 778 unsigned long bitrate; /* stream bitrate (bps) */
okini3939 0:8ba6230eefbd 779 unsigned int samplerate; /* sampling frequency (Hz) */
okini3939 0:8ba6230eefbd 780
okini3939 0:8ba6230eefbd 781 unsigned short crc_check; /* frame CRC accumulator */
okini3939 0:8ba6230eefbd 782 unsigned short crc_target; /* final target CRC checksum */
okini3939 0:8ba6230eefbd 783
okini3939 0:8ba6230eefbd 784 int flags; /* flags (see below) */
okini3939 0:8ba6230eefbd 785 int private_bits; /* private bits (see below) */
okini3939 0:8ba6230eefbd 786
okini3939 0:8ba6230eefbd 787 mad_timer_t duration; /* audio playing time of frame */
okini3939 0:8ba6230eefbd 788 };
okini3939 0:8ba6230eefbd 789
okini3939 0:8ba6230eefbd 790 struct mad_frame {
okini3939 0:8ba6230eefbd 791 struct mad_header header; /* MPEG audio header */
okini3939 0:8ba6230eefbd 792
okini3939 0:8ba6230eefbd 793 int options; /* decoding options (from stream) */
okini3939 0:8ba6230eefbd 794
okini3939 0:8ba6230eefbd 795 mad_fixed_t sbsample[2][36][32]; /* synthesis subband filter samples */
okini3939 0:8ba6230eefbd 796 mad_fixed_t (*overlap)[2][32][18]; /* Layer III block overlap data */
okini3939 0:8ba6230eefbd 797 };
okini3939 0:8ba6230eefbd 798
okini3939 0:8ba6230eefbd 799 # define MAD_NCHANNELS(header) ((header)->mode ? 2 : 1)
okini3939 0:8ba6230eefbd 800 # define MAD_NSBSAMPLES(header) \
okini3939 0:8ba6230eefbd 801 ((header)->layer == MAD_LAYER_I ? 12 : \
okini3939 0:8ba6230eefbd 802 (((header)->layer == MAD_LAYER_III && \
okini3939 0:8ba6230eefbd 803 ((header)->flags & MAD_FLAG_LSF_EXT)) ? 18 : 36))
okini3939 0:8ba6230eefbd 804
okini3939 0:8ba6230eefbd 805 enum {
okini3939 0:8ba6230eefbd 806 MAD_FLAG_NPRIVATE_III = 0x0007, /* number of Layer III private bits */
okini3939 0:8ba6230eefbd 807 MAD_FLAG_INCOMPLETE = 0x0008, /* header but not data is decoded */
okini3939 0:8ba6230eefbd 808
okini3939 0:8ba6230eefbd 809 MAD_FLAG_PROTECTION = 0x0010, /* frame has CRC protection */
okini3939 0:8ba6230eefbd 810 MAD_FLAG_COPYRIGHT = 0x0020, /* frame is copyright */
okini3939 0:8ba6230eefbd 811 MAD_FLAG_ORIGINAL = 0x0040, /* frame is original (else copy) */
okini3939 0:8ba6230eefbd 812 MAD_FLAG_PADDING = 0x0080, /* frame has additional slot */
okini3939 0:8ba6230eefbd 813
okini3939 0:8ba6230eefbd 814 MAD_FLAG_I_STEREO = 0x0100, /* uses intensity joint stereo */
okini3939 0:8ba6230eefbd 815 MAD_FLAG_MS_STEREO = 0x0200, /* uses middle/side joint stereo */
okini3939 0:8ba6230eefbd 816 MAD_FLAG_FREEFORMAT = 0x0400, /* uses free format bitrate */
okini3939 0:8ba6230eefbd 817
okini3939 0:8ba6230eefbd 818 MAD_FLAG_LSF_EXT = 0x1000, /* lower sampling freq. extension */
okini3939 0:8ba6230eefbd 819 MAD_FLAG_MC_EXT = 0x2000, /* multichannel audio extension */
okini3939 0:8ba6230eefbd 820 MAD_FLAG_MPEG_2_5_EXT = 0x4000 /* MPEG 2.5 (unofficial) extension */
okini3939 0:8ba6230eefbd 821 };
okini3939 0:8ba6230eefbd 822
okini3939 0:8ba6230eefbd 823 enum {
okini3939 0:8ba6230eefbd 824 MAD_PRIVATE_HEADER = 0x0100, /* header private bit */
okini3939 0:8ba6230eefbd 825 MAD_PRIVATE_III = 0x001f /* Layer III private bits (up to 5) */
okini3939 0:8ba6230eefbd 826 };
okini3939 0:8ba6230eefbd 827
okini3939 0:8ba6230eefbd 828 void mad_header_init(struct mad_header *);
okini3939 0:8ba6230eefbd 829
okini3939 0:8ba6230eefbd 830 # define mad_header_finish(header) /* nothing */
okini3939 0:8ba6230eefbd 831
okini3939 0:8ba6230eefbd 832 int mad_header_decode(struct mad_header *, struct mad_stream *);
okini3939 0:8ba6230eefbd 833
okini3939 0:8ba6230eefbd 834 void mad_frame_init(struct mad_frame *);
okini3939 0:8ba6230eefbd 835 void mad_frame_finish(struct mad_frame *);
okini3939 0:8ba6230eefbd 836
okini3939 0:8ba6230eefbd 837 int mad_frame_decode(struct mad_frame *, struct mad_stream *);
okini3939 0:8ba6230eefbd 838
okini3939 0:8ba6230eefbd 839 void mad_frame_mute(struct mad_frame *);
okini3939 0:8ba6230eefbd 840
okini3939 0:8ba6230eefbd 841 # endif
okini3939 0:8ba6230eefbd 842
okini3939 0:8ba6230eefbd 843 /* Id: synth.h,v 1.15 2004/01/23 09:41:33 rob Exp */
okini3939 0:8ba6230eefbd 844
okini3939 0:8ba6230eefbd 845 # ifndef LIBMAD_SYNTH_H
okini3939 0:8ba6230eefbd 846 # define LIBMAD_SYNTH_H
okini3939 0:8ba6230eefbd 847
okini3939 0:8ba6230eefbd 848
okini3939 0:8ba6230eefbd 849 struct mad_pcm {
okini3939 0:8ba6230eefbd 850 unsigned int samplerate; /* sampling frequency (Hz) */
okini3939 0:8ba6230eefbd 851 unsigned short channels; /* number of channels */
okini3939 0:8ba6230eefbd 852 unsigned short length; /* number of samples per channel */
okini3939 0:8ba6230eefbd 853 mad_fixed_t samples[2][1152]; /* PCM output samples [ch][sample] */
okini3939 0:8ba6230eefbd 854 };
okini3939 0:8ba6230eefbd 855
okini3939 0:8ba6230eefbd 856 struct mad_synth {
okini3939 0:8ba6230eefbd 857 mad_fixed_t filter[2][2][2][16][8]; /* polyphase filterbank outputs */
okini3939 0:8ba6230eefbd 858 /* [ch][eo][peo][s][v] */
okini3939 0:8ba6230eefbd 859
okini3939 0:8ba6230eefbd 860 unsigned int phase; /* current processing phase */
okini3939 0:8ba6230eefbd 861
okini3939 0:8ba6230eefbd 862 struct mad_pcm pcm; /* PCM output */
okini3939 0:8ba6230eefbd 863 };
okini3939 0:8ba6230eefbd 864
okini3939 0:8ba6230eefbd 865 /* single channel PCM selector */
okini3939 0:8ba6230eefbd 866 enum {
okini3939 0:8ba6230eefbd 867 MAD_PCM_CHANNEL_SINGLE = 0
okini3939 0:8ba6230eefbd 868 };
okini3939 0:8ba6230eefbd 869
okini3939 0:8ba6230eefbd 870 /* dual channel PCM selector */
okini3939 0:8ba6230eefbd 871 enum {
okini3939 0:8ba6230eefbd 872 MAD_PCM_CHANNEL_DUAL_1 = 0,
okini3939 0:8ba6230eefbd 873 MAD_PCM_CHANNEL_DUAL_2 = 1
okini3939 0:8ba6230eefbd 874 };
okini3939 0:8ba6230eefbd 875
okini3939 0:8ba6230eefbd 876 /* stereo PCM selector */
okini3939 0:8ba6230eefbd 877 enum {
okini3939 0:8ba6230eefbd 878 MAD_PCM_CHANNEL_STEREO_LEFT = 0,
okini3939 0:8ba6230eefbd 879 MAD_PCM_CHANNEL_STEREO_RIGHT = 1
okini3939 0:8ba6230eefbd 880 };
okini3939 0:8ba6230eefbd 881
okini3939 0:8ba6230eefbd 882 void mad_synth_init(struct mad_synth *);
okini3939 0:8ba6230eefbd 883
okini3939 0:8ba6230eefbd 884 # define mad_synth_finish(synth) /* nothing */
okini3939 0:8ba6230eefbd 885
okini3939 0:8ba6230eefbd 886 void mad_synth_mute(struct mad_synth *);
okini3939 0:8ba6230eefbd 887
okini3939 0:8ba6230eefbd 888 void mad_synth_frame(struct mad_synth *, struct mad_frame const *);
okini3939 0:8ba6230eefbd 889
okini3939 0:8ba6230eefbd 890 # endif
okini3939 0:8ba6230eefbd 891
okini3939 0:8ba6230eefbd 892 /* Id: decoder.h,v 1.17 2004/01/23 09:41:32 rob Exp */
okini3939 0:8ba6230eefbd 893
okini3939 0:8ba6230eefbd 894 # ifndef LIBMAD_DECODER_H
okini3939 0:8ba6230eefbd 895 # define LIBMAD_DECODER_H
okini3939 0:8ba6230eefbd 896
okini3939 0:8ba6230eefbd 897
okini3939 0:8ba6230eefbd 898 enum mad_decoder_mode {
okini3939 0:8ba6230eefbd 899 MAD_DECODER_MODE_SYNC = 0,
okini3939 0:8ba6230eefbd 900 MAD_DECODER_MODE_ASYNC
okini3939 0:8ba6230eefbd 901 };
okini3939 0:8ba6230eefbd 902
okini3939 0:8ba6230eefbd 903 enum mad_flow {
okini3939 0:8ba6230eefbd 904 MAD_FLOW_CONTINUE = 0x0000, /* continue normally */
okini3939 0:8ba6230eefbd 905 MAD_FLOW_STOP = 0x0010, /* stop decoding normally */
okini3939 0:8ba6230eefbd 906 MAD_FLOW_BREAK = 0x0011, /* stop decoding and signal an error */
okini3939 0:8ba6230eefbd 907 MAD_FLOW_IGNORE = 0x0020 /* ignore the current frame */
okini3939 0:8ba6230eefbd 908 };
okini3939 0:8ba6230eefbd 909
okini3939 0:8ba6230eefbd 910 struct mad_sync_s {
okini3939 0:8ba6230eefbd 911 struct mad_stream stream;
okini3939 0:8ba6230eefbd 912 struct mad_frame frame;
okini3939 0:8ba6230eefbd 913 struct mad_synth *synth;
okini3939 0:8ba6230eefbd 914 };
okini3939 0:8ba6230eefbd 915
okini3939 0:8ba6230eefbd 916 struct mad_decoder {
okini3939 0:8ba6230eefbd 917 enum mad_decoder_mode mode;
okini3939 0:8ba6230eefbd 918
okini3939 0:8ba6230eefbd 919 int options;
okini3939 0:8ba6230eefbd 920
okini3939 0:8ba6230eefbd 921 struct {
okini3939 0:8ba6230eefbd 922 long pid;
okini3939 0:8ba6230eefbd 923 int in;
okini3939 0:8ba6230eefbd 924 int out;
okini3939 0:8ba6230eefbd 925 } async;
okini3939 0:8ba6230eefbd 926
okini3939 0:8ba6230eefbd 927 struct mad_sync_s *sync;
okini3939 0:8ba6230eefbd 928
okini3939 0:8ba6230eefbd 929 void *cb_data;
okini3939 0:8ba6230eefbd 930
okini3939 0:8ba6230eefbd 931 enum mad_flow (*input_func)(void *, struct mad_stream *);
okini3939 0:8ba6230eefbd 932 enum mad_flow (*header_func)(void *, struct mad_header const *);
okini3939 0:8ba6230eefbd 933 enum mad_flow (*filter_func)(void *,
okini3939 0:8ba6230eefbd 934 struct mad_stream const *, struct mad_frame *);
okini3939 0:8ba6230eefbd 935 enum mad_flow (*output_func)(void *,
okini3939 0:8ba6230eefbd 936 struct mad_header const *, struct mad_pcm *);
okini3939 0:8ba6230eefbd 937 enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
okini3939 0:8ba6230eefbd 938 enum mad_flow (*message_func)(void *, void *, unsigned int *);
okini3939 0:8ba6230eefbd 939 };
okini3939 0:8ba6230eefbd 940
okini3939 0:8ba6230eefbd 941 void mad_decoder_init(struct mad_decoder *, void *,
okini3939 0:8ba6230eefbd 942 enum mad_flow (*)(void *, struct mad_stream *),
okini3939 0:8ba6230eefbd 943 enum mad_flow (*)(void *, struct mad_header const *),
okini3939 0:8ba6230eefbd 944 enum mad_flow (*)(void *,
okini3939 0:8ba6230eefbd 945 struct mad_stream const *,
okini3939 0:8ba6230eefbd 946 struct mad_frame *),
okini3939 0:8ba6230eefbd 947 enum mad_flow (*)(void *,
okini3939 0:8ba6230eefbd 948 struct mad_header const *,
okini3939 0:8ba6230eefbd 949 struct mad_pcm *),
okini3939 0:8ba6230eefbd 950 enum mad_flow (*)(void *,
okini3939 0:8ba6230eefbd 951 struct mad_stream *,
okini3939 0:8ba6230eefbd 952 struct mad_frame *),
okini3939 0:8ba6230eefbd 953 enum mad_flow (*)(void *, void *, unsigned int *));
okini3939 0:8ba6230eefbd 954 int mad_decoder_finish(struct mad_decoder *);
okini3939 0:8ba6230eefbd 955
okini3939 0:8ba6230eefbd 956 # define mad_decoder_options(decoder, opts) \
okini3939 0:8ba6230eefbd 957 ((void) ((decoder)->options = (opts)))
okini3939 0:8ba6230eefbd 958
okini3939 0:8ba6230eefbd 959 int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
okini3939 0:8ba6230eefbd 960 int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
okini3939 0:8ba6230eefbd 961
okini3939 0:8ba6230eefbd 962 # endif
okini3939 0:8ba6230eefbd 963
okini3939 0:8ba6230eefbd 964 # ifdef __cplusplus
okini3939 0:8ba6230eefbd 965 }
okini3939 0:8ba6230eefbd 966 # endif