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562
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1 /*
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2 mpg123lib_intern: Common non-public stuff for libmpg123
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3
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4 copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1
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5 see COPYING and AUTHORS files in distribution or http://mpg123.org
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6
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7 derived from the old mpg123.h
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8 */
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9
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10 #ifndef MPG123_H_INTERN
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11 #define MPG123_H_INTERN
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12
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13 #define MPG123_RATES 9
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14 #define MPG123_ENCODINGS 10
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15
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16 /* ABI conformance for other compilers.
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17 mpg123 needs 16byte-aligned stack for SSE and friends.
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18 gcc provides that, but others don't necessarily. */
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19 #ifndef attribute_align_arg
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20 #if defined(__GNUC__) && (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__>1)
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21 # define attribute_align_arg __attribute__((force_align_arg_pointer))
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22 /* The gcc that can align the stack does not need the check... nor does it work with gcc 4.3+, anyway. */
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23 #else
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24 # define attribute_align_arg
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25 # define NEED_ALIGNCHECK /* Other compilers get code to catch misaligned stack. */
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26 #endif
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27 #endif
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28
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29 /* export DLL symbols */
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30 #if defined(WIN32) && defined(DYNAMIC_BUILD)
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31 #define BUILD_MPG123_DLL
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32 #endif
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33 #include "config.h" /* Load this before mpg123.h, for example for largefile stuff. */
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34 #include "compat.h"
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35 #include "mpg123.h"
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36
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37 #define SKIP_JUNK 1
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38
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39 #ifndef M_PI
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40 # define M_PI 3.14159265358979323846
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41 #endif
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42 #ifndef M_SQRT2
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43 # define M_SQRT2 1.41421356237309504880
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44 #endif
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45
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46 #ifdef SUNOS
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47 #define memmove(dst,src,size) bcopy(src,dst,size)
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48 #endif
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49
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50 /* some stuff has to go back to mpg123.h */
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51 #ifdef REAL_IS_FLOAT
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52 # define real float
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53 # define REAL_SCANF "%f"
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54 # define REAL_PRINTF "%f"
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55 #elif defined(REAL_IS_LONG_DOUBLE)
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56 # define real long double
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57 # define REAL_SCANF "%Lf"
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58 # define REAL_PRINTF "%Lf"
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59 #elif defined(REAL_IS_FIXED)
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60 # define real long
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61
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62 # define REAL_RADIX 15
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63 # define REAL_FACTOR (32.0 * 1024.0)
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64
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65 # define REAL_PLUS_32767 ( 32767 << REAL_RADIX )
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66 # define REAL_MINUS_32768 ( -32768 << REAL_RADIX )
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67
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68 /* I just changed the (int) to (long) there... seemed right. */
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69 # define DOUBLE_TO_REAL(x) ((long)((x) * REAL_FACTOR))
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70 # define REAL_TO_DOUBLE(x) ((double)(x) / REAL_FACTOR)
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71 # define REAL_TO_SHORT(x) ((x) >> REAL_RADIX)
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72 # define REAL_MUL(x, y) (((long long)(x) * (long long)(y)) >> REAL_RADIX)
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73 # define REAL_SCANF "%ld"
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74 # define REAL_PRINTF "%ld"
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75
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76 #else
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77 # define real double
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78 # define REAL_SCANF "%lf"
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79 # define REAL_PRINTF "%f"
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80 #endif
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81
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82 #ifndef DOUBLE_TO_REAL
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83 # define DOUBLE_TO_REAL(x) (x)
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84 #endif
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85 #ifndef REAL_TO_DOUBLE
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86 # define REAL_TO_DOUBLE(x) (x)
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87 #endif
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88 #ifndef REAL_TO_SHORT
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89 # define REAL_TO_SHORT(x) (x)
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90 #endif
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91 #ifndef REAL_PLUS_32767
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92 # define REAL_PLUS_32767 32767.0
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93 #endif
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94 #ifndef REAL_MINUS_32768
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95 # define REAL_MINUS_32768 -32768.0
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96 #endif
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97 #ifndef REAL_MUL
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98 # define REAL_MUL(x, y) ((x) * (y))
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99 #endif
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100
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101 /* used to be: AUDIOBUFSIZE = n*64 with n=1,2,3 ...
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102 now: factor on minimum frame buffer size (which takes upsampling into account) */
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103 #define AUDIOBUFSIZE 2
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104
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105 #include "true.h"
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106
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107 #define MAX_NAME_SIZE 81
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108 #define SBLIMIT 32
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109 #define SCALE_BLOCK 12
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110 #define SSLIMIT 18
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111
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112 /* Same as MPG_M_* */
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113 #define MPG_MD_STEREO 0
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114 #define MPG_MD_JOINT_STEREO 1
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115 #define MPG_MD_DUAL_CHANNEL 2
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116 #define MPG_MD_MONO 3
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117
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118 /* float output only for generic decoder! */
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119 #ifdef FLOATOUT
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120 #define MAXOUTBURST 1.0
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121 #define scale_t double
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122 #else
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123 /* I suspect that 32767 would be a better idea here, but Michael put this in... */
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124 #define MAXOUTBURST 32768
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125 #define scale_t long
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126 #endif
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127
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128 /* Pre Shift fo 16 to 8 bit converter table */
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129 #define AUSHIFT (3)
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130
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131 #include "decode.h"
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132 #include "parse.h"
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133 #include "optimize.h"
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134 #include "frame.h"
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135
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136 /* fr is a mpg123_handle* by convention here... */
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137 #define NOQUIET (!(fr->p.flags & MPG123_QUIET))
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138 #define VERBOSE (NOQUIET && fr->p.verbose)
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139 #define VERBOSE2 (NOQUIET && fr->p.verbose > 1)
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140 #define VERBOSE3 (NOQUIET && fr->p.verbose > 2)
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141 #define VERBOSE4 (NOQUIET && fr->p.verbose > 3)
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142 #define PVERB(mp, level) (!((mp)->flags & MPG123_QUIET) && (mp)->verbose >= (level))
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143
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144 int decode_update(mpg123_handle *mh);
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145
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146 #endif
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