mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-21 06:12:34 +03:00
322 lines
8.8 KiB
C
322 lines
8.8 KiB
C
/*
|
|
mpg123lib_intern: Common non-public stuff for libmpg123
|
|
|
|
copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1
|
|
see COPYING and AUTHORS files in distribution or http://mpg123.org
|
|
|
|
derived from the old mpg123.h
|
|
*/
|
|
|
|
#ifndef MPG123_H_INTERN
|
|
#define MPG123_H_INTERN
|
|
|
|
#define MPG123_RATES 9
|
|
#define MPG123_ENCODINGS 10
|
|
|
|
#include "config.h" /* Load this before _anything_ */
|
|
|
|
/* ABI conformance for other compilers.
|
|
mpg123 needs 16byte-aligned stack for SSE and friends.
|
|
gcc provides that, but others don't necessarily. */
|
|
#ifdef ABI_ALIGN_FUN
|
|
#ifndef attribute_align_arg
|
|
#if defined(__GNUC__) && (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__>1)
|
|
# define attribute_align_arg __attribute__((force_align_arg_pointer))
|
|
/* The gcc that can align the stack does not need the check... nor does it work with gcc 4.3+, anyway. */
|
|
#else
|
|
# define attribute_align_arg
|
|
# define NEED_ALIGNCHECK /* Other compilers get code to catch misaligned stack. */
|
|
#endif
|
|
#endif
|
|
#else
|
|
#define attribute_align_arg
|
|
/* We won't try the align check... */
|
|
#endif
|
|
|
|
/* export DLL symbols */
|
|
#if defined(WIN32) && defined(DYNAMIC_BUILD)
|
|
#define BUILD_MPG123_DLL
|
|
#endif
|
|
#include "compat.h"
|
|
#include "mpg123.h"
|
|
|
|
#define SKIP_JUNK 1
|
|
|
|
#ifndef M_PI
|
|
# define M_PI 3.14159265358979323846
|
|
#endif
|
|
#ifndef M_SQRT2
|
|
# define M_SQRT2 1.41421356237309504880
|
|
#endif
|
|
|
|
#ifdef SUNOS
|
|
#define memmove(dst,src,size) bcopy(src,dst,size)
|
|
#endif
|
|
|
|
/* some stuff has to go back to mpg123.h */
|
|
#ifdef REAL_IS_FLOAT
|
|
# define real float
|
|
# define REAL_SCANF "%f"
|
|
# define REAL_PRINTF "%f"
|
|
#elif defined(REAL_IS_LONG_DOUBLE)
|
|
# define real long double
|
|
# define REAL_SCANF "%Lf"
|
|
# define REAL_PRINTF "%Lf"
|
|
#elif defined(REAL_IS_FIXED)
|
|
/* Disable some output formats for fixed point decoder... */
|
|
|
|
# define real long
|
|
|
|
/*
|
|
for fixed-point decoders, use pre-calculated tables to avoid expensive floating-point maths
|
|
undef this macro for run-time calculation
|
|
*/
|
|
#define PRECALC_TABLES
|
|
|
|
# define REAL_RADIX 24
|
|
# define REAL_FACTOR 16777216.0
|
|
|
|
static inline long double_to_long_rounded(double x, double scalefac)
|
|
{
|
|
x *= scalefac;
|
|
x += (x > 0) ? 0.5 : -0.5;
|
|
return (long)x;
|
|
}
|
|
|
|
static inline long scale_rounded(long x, int shift)
|
|
{
|
|
x += (x >> 31);
|
|
x >>= (shift - 1);
|
|
x += (x & 1);
|
|
return (x >> 1);
|
|
}
|
|
|
|
# ifdef __GNUC__
|
|
# if defined(OPT_I386)
|
|
/* for i386_nofpu decoder */
|
|
# define REAL_MUL_ASM(x, y, radix) \
|
|
({ \
|
|
long _x=(x), _y=(y); \
|
|
__asm__ ( \
|
|
"imull %1 \n\t" \
|
|
"shrdl %2, %%edx, %0 \n\t" \
|
|
: "+&a" (_x) \
|
|
: "mr" (_y), "I" (radix) \
|
|
: "%edx", "cc" \
|
|
); \
|
|
_x; \
|
|
})
|
|
|
|
# define REAL_MUL_SCALE_LAYER3_ASM(x, y, radix) \
|
|
({ \
|
|
long _x=(x), _y=(y), _radix=(radix); \
|
|
__asm__ ( \
|
|
"imull %1 \n\t" \
|
|
"shrdl %%cl, %%edx, %0 \n\t" \
|
|
: "+&a" (_x) \
|
|
: "mr" (_y), "c" (_radix) \
|
|
: "%edx", "cc" \
|
|
); \
|
|
_x; \
|
|
})
|
|
# elif defined(OPT_PPC)
|
|
/* for powerpc */
|
|
# define REAL_MUL_ASM(x, y, radix) \
|
|
({ \
|
|
long _x=(x), _y=(y), _mull, _mulh; \
|
|
__asm__ ( \
|
|
"mullw %0, %2, %3 \n\t" \
|
|
"mulhw %1, %2, %3 \n\t" \
|
|
"srwi %0, %0, %4 \n\t" \
|
|
"rlwimi %0, %1, %5, 0, %6 \n\t" \
|
|
: "=&r" (_mull), "=&r" (_mulh) \
|
|
: "%r" (_x), "r" (_y), "i" (radix), "i" (32-(radix)), "i" ((radix)-1) \
|
|
); \
|
|
_mull; \
|
|
})
|
|
|
|
# define REAL_MUL_SCALE_LAYER3_ASM(x, y, radix) \
|
|
({ \
|
|
long _x=(x), _y=(y), _radix=(radix), _mull, _mulh, _radix2; \
|
|
__asm__ ( \
|
|
"mullw %0, %3, %4 \n\t" \
|
|
"mulhw %1, %3, %4 \n\t" \
|
|
"subfic %2, %5, 32 \n\t" \
|
|
"srw %0, %0, %5 \n\t" \
|
|
"slw %1, %1, %2 \n\t" \
|
|
"or %0, %0, %1 \n\t" \
|
|
: "=&r" (_mull), "=&r" (_mulh), "=&r" (_radix2) \
|
|
: "%r" (_x), "r" (_y), "r" (_radix) \
|
|
: "cc" \
|
|
); \
|
|
_mull; \
|
|
})
|
|
# elif defined(OPT_ARM)
|
|
/* for arm */
|
|
# define REAL_MUL_ASM(x, y, radix) \
|
|
({ \
|
|
long _x=(x), _y=(y), _mull, _mulh; \
|
|
__asm__ ( \
|
|
"smull %0, %1, %2, %3 \n\t" \
|
|
"mov %0, %0, lsr %4 \n\t" \
|
|
"orr %0, %0, %1, lsl %5 \n\t" \
|
|
: "=&r" (_mull), "=&r" (_mulh) \
|
|
: "%r" (_x), "r" (_y), "M" (radix), "M" (32-(radix)) \
|
|
); \
|
|
_mull; \
|
|
})
|
|
|
|
# define REAL_MUL_SCALE_LAYER3_ASM(x, y, radix) \
|
|
({ \
|
|
long _x=(x), _y=(y), _radix=(radix), _mull, _mulh, _radix2; \
|
|
__asm__ ( \
|
|
"smull %0, %1, %3, %4 \n\t" \
|
|
"mov %0, %0, lsr %5 \n\t" \
|
|
"rsb %2, %5, #32 \n\t" \
|
|
"orr %0, %0, %1, lsl %2 \n\t" \
|
|
: "=&r" (_mull), "=&r" (_mulh), "=&r" (_radix2) \
|
|
: "%r" (_x), "r" (_y), "r" (_radix) \
|
|
); \
|
|
_mull; \
|
|
})
|
|
# endif
|
|
# endif
|
|
|
|
/* I just changed the (int) to (long) there... seemed right. */
|
|
# define DOUBLE_TO_REAL(x) (double_to_long_rounded(x, REAL_FACTOR))
|
|
# define DOUBLE_TO_REAL_15(x) (double_to_long_rounded(x, 32768.0))
|
|
# define DOUBLE_TO_REAL_POW43(x) (double_to_long_rounded(x, 8192.0))
|
|
# define DOUBLE_TO_REAL_SCALE_LAYER12(x) (double_to_long_rounded(x, 1073741824.0))
|
|
# define DOUBLE_TO_REAL_SCALE_LAYER3(x, y) (double_to_long_rounded(x, pow(2.0,gainpow2_scale[y])))
|
|
# define REAL_TO_DOUBLE(x) ((double)(x) / REAL_FACTOR)
|
|
# ifdef REAL_MUL_ASM
|
|
# define REAL_MUL(x, y) REAL_MUL_ASM(x, y, REAL_RADIX)
|
|
# define REAL_MUL_15(x, y) REAL_MUL_ASM(x, y, 15)
|
|
# define REAL_MUL_SCALE_LAYER12(x, y) REAL_MUL_ASM(x, y, 15 + 30 - REAL_RADIX)
|
|
# else
|
|
# define REAL_MUL(x, y) (((long long)(x) * (long long)(y)) >> REAL_RADIX)
|
|
# define REAL_MUL_15(x, y) (((long long)(x) * (long long)(y)) >> 15)
|
|
# define REAL_MUL_SCALE_LAYER12(x, y) (((long long)(x) * (long long)(y)) >> (15 + 30 - REAL_RADIX))
|
|
# endif
|
|
# ifdef REAL_MUL_SCALE_LAYER3_ASM
|
|
# define REAL_MUL_SCALE_LAYER3(x, y, z) REAL_MUL_SCALE_LAYER3_ASM(x, y, 13 + gainpow2_scale[z] - REAL_RADIX)
|
|
# else
|
|
# define REAL_MUL_SCALE_LAYER3(x, y, z) (((long long)(x) * (long long)(y)) >> (13 + gainpow2_scale[z] - REAL_RADIX))
|
|
# endif
|
|
# define REAL_SCALE_LAYER12(x) ((long)((x) >> (30 - REAL_RADIX)))
|
|
# define REAL_SCALE_LAYER3(x, y) ((long)((x) >> (gainpow2_scale[y] - REAL_RADIX)))
|
|
# ifdef ACCURATE_ROUNDING
|
|
# define REAL_MUL_SYNTH(x, y) REAL_MUL(x, y)
|
|
# define REAL_SCALE_DCT64(x) (x)
|
|
# define REAL_SCALE_WINDOW(x) (x)
|
|
# else
|
|
# define REAL_MUL_SYNTH(x, y) ((x) * (y))
|
|
# define REAL_SCALE_DCT64(x) ((x) >> 8)
|
|
# define REAL_SCALE_WINDOW(x) scale_rounded(x, 16)
|
|
# endif
|
|
# define REAL_SCANF "%ld"
|
|
# define REAL_PRINTF "%ld"
|
|
|
|
#else
|
|
# define real double
|
|
# define REAL_SCANF "%lf"
|
|
# define REAL_PRINTF "%f"
|
|
#endif
|
|
|
|
#ifndef REAL_IS_FIXED
|
|
# if (defined SIZEOF_INT32_T) && (SIZEOF_INT32_T != 4)
|
|
# error "Bad 32bit types!!!"
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef DOUBLE_TO_REAL
|
|
# define DOUBLE_TO_REAL(x) (real)(x)
|
|
#endif
|
|
#ifndef DOUBLE_TO_REAL_15
|
|
# define DOUBLE_TO_REAL_15(x) (real)(x)
|
|
#endif
|
|
#ifndef DOUBLE_TO_REAL_POW43
|
|
# define DOUBLE_TO_REAL_POW43(x) (real)(x)
|
|
#endif
|
|
#ifndef DOUBLE_TO_REAL_SCALE_LAYER12
|
|
# define DOUBLE_TO_REAL_SCALE_LAYER12(x) (real)(x)
|
|
#endif
|
|
#ifndef DOUBLE_TO_REAL_SCALE_LAYER3
|
|
# define DOUBLE_TO_REAL_SCALE_LAYER3(x, y) (real)(x)
|
|
#endif
|
|
#ifndef REAL_TO_DOUBLE
|
|
# define REAL_TO_DOUBLE(x) (x)
|
|
#endif
|
|
|
|
#ifndef REAL_MUL
|
|
# define REAL_MUL(x, y) ((x) * (y))
|
|
#endif
|
|
#ifndef REAL_MUL_SYNTH
|
|
# define REAL_MUL_SYNTH(x, y) ((x) * (y))
|
|
#endif
|
|
#ifndef REAL_MUL_15
|
|
# define REAL_MUL_15(x, y) ((x) * (y))
|
|
#endif
|
|
#ifndef REAL_MUL_SCALE_LAYER12
|
|
# define REAL_MUL_SCALE_LAYER12(x, y) ((x) * (y))
|
|
#endif
|
|
#ifndef REAL_MUL_SCALE_LAYER3
|
|
# define REAL_MUL_SCALE_LAYER3(x, y, z) ((x) * (y))
|
|
#endif
|
|
#ifndef REAL_SCALE_LAYER12
|
|
# define REAL_SCALE_LAYER12(x) (x)
|
|
#endif
|
|
#ifndef REAL_SCALE_LAYER3
|
|
# define REAL_SCALE_LAYER3(x, y) (x)
|
|
#endif
|
|
#ifndef REAL_SCALE_DCT64
|
|
# define REAL_SCALE_DCT64(x) (x)
|
|
#endif
|
|
|
|
/* used to be: AUDIOBUFSIZE = n*64 with n=1,2,3 ...
|
|
now: factor on minimum frame buffer size (which takes upsampling into account) */
|
|
#define AUDIOBUFSIZE 2
|
|
|
|
#include "true.h"
|
|
|
|
#define MAX_NAME_SIZE 81
|
|
#define SBLIMIT 32
|
|
#define SCALE_BLOCK 12
|
|
#define SSLIMIT 18
|
|
|
|
/* Same as MPG_M_* */
|
|
#define MPG_MD_STEREO 0
|
|
#define MPG_MD_JOINT_STEREO 1
|
|
#define MPG_MD_DUAL_CHANNEL 2
|
|
#define MPG_MD_MONO 3
|
|
|
|
/* We support short or float output samples...
|
|
Short integer amplitude is scaled by this. */
|
|
#define SHORT_SCALE 32768
|
|
/* That scales a short-scaled value to a 32bit integer scaled one
|
|
value = 2**31/2**15 */
|
|
#define S32_RESCALE 65536
|
|
|
|
/* Pre Shift fo 16 to 8 bit converter table */
|
|
#define AUSHIFT (3)
|
|
|
|
#include "optimize.h"
|
|
#include "decode.h"
|
|
#include "parse.h"
|
|
#include "frame.h"
|
|
|
|
/* fr is a mpg123_handle* by convention here... */
|
|
#define NOQUIET 0 /*(!(fr->p.flags & MPG123_QUIET))*/
|
|
#define VERBOSE (NOQUIET && fr->p.verbose)
|
|
#define VERBOSE2 (NOQUIET && fr->p.verbose > 1)
|
|
#define VERBOSE3 (NOQUIET && fr->p.verbose > 2)
|
|
#define VERBOSE4 (NOQUIET && fr->p.verbose > 3)
|
|
#define PVERB(mp, level) 0 /*(!((mp)->flags & MPG123_QUIET) && (mp)->verbose >= (level)) */
|
|
|
|
int decode_update(mpg123_handle *mh);
|
|
/* residing in format.c */
|
|
off_t samples_to_bytes(mpg123_handle *fr , off_t s);
|
|
off_t bytes_to_samples(mpg123_handle *fr , off_t b);
|
|
|
|
#endif
|