voxudio 0.7.1

A real-time audio processing library with ONNX runtime support
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188

/*Copyright (c) 2003-2004, Mark Borgerding

  All rights reserved.

  Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice,
       this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright notice,
       this list of conditions and the following disclaimer in the
       documentation and/or other materials provided with the distribution.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  POSSIBILITY OF SUCH DAMAGE.*/

#ifndef KISS_FFT_GUTS_H
#define KISS_FFT_GUTS_H


#define MIN(a,b) ((a)<(b) ? (a):(b))

#define MAX(a,b) ((a)>(b) ? (a):(b))


/* kiss_fft.h
   defines kiss_fft_scalar as either short or a float type
   and defines
   typedef struct { kiss_fft_scalar r; kiss_fft_scalar i; }kiss_fft_cpx; */
#include "kiss_fft.h"

/*
  Explanation of macros dealing with complex math:

   C_MUL(m,a,b)         : m = a*b
   C_FIXDIV( c , div )  : if a fixed point impl., c /= div. noop otherwise
   C_SUB( res, a,b)     : res = a - b
   C_SUBFROM( res , a)  : res -= a
   C_ADDTO( res , a)    : res += a
 * */
#ifdef FIXED_POINT
#include "arch.h"


#define SAMP_MAX 2147483647

#define TWID_MAX 32767

#define TRIG_UPSCALE 1


#define SAMP_MIN -SAMP_MAX


#ifdef ENABLE_QEXT
#   define S_MUL(a,b) MULT32_32_P31_ovflw(b, a)

#   define S_MUL2(a,b) MULT32_32_P31_ovflw(b, a)

#else
#   define S_MUL(a,b) MULT16_32_Q15(b, a)

#   define S_MUL2(a,b) MULT16_32_Q16(b, a)

#endif

#   define C_MUL(m,a,b) \

      do{ (m).r = SUB32_ovflw(S_MUL((a).r,(b).r) , S_MUL((a).i,(b).i)); \
          (m).i = ADD32_ovflw(S_MUL((a).r,(b).i) , S_MUL((a).i,(b).r)); }while(0)

#   define C_MULC(m,a,b) \

      do{ (m).r = ADD32_ovflw(S_MUL((a).r,(b).r) , S_MUL((a).i,(b).i)); \
          (m).i = SUB32_ovflw(S_MUL((a).i,(b).r) , S_MUL((a).r,(b).i)); }while(0)

#   define C_MULBYSCALAR( c, s ) \

      do{ (c).r =  S_MUL( (c).r , s ) ;\
          (c).i =  S_MUL( (c).i , s ) ; }while(0)

#   define DIVSCALAR(x,k) \

        (x) = S_MUL(  x, (TWID_MAX-((k)>>1))/(k)+1 )

#   define C_FIXDIV(c,div) \

        do {    DIVSCALAR( (c).r , div);  \
                DIVSCALAR( (c).i  , div); }while (0)

#define  C_ADD( res, a,b)\

    do {(res).r=ADD32_ovflw((a).r,(b).r);  (res).i=ADD32_ovflw((a).i,(b).i); \
    }while(0)
#define  C_SUB( res, a,b)\

    do {(res).r=SUB32_ovflw((a).r,(b).r);  (res).i=SUB32_ovflw((a).i,(b).i); \
    }while(0)
#define C_ADDTO( res , a)\

    do {(res).r = ADD32_ovflw((res).r, (a).r);  (res).i = ADD32_ovflw((res).i,(a).i);\
    }while(0)

#define C_SUBFROM( res , a)\

    do {(res).r = ADD32_ovflw((res).r,(a).r);  (res).i = SUB32_ovflw((res).i,(a).i); \
    }while(0)

#if defined(OPUS_ARM_INLINE_ASM)
#include "arm/kiss_fft_armv4.h"
#endif

#if defined(OPUS_ARM_INLINE_EDSP)
#include "arm/kiss_fft_armv5e.h"
#endif
#if defined(__mips)
#include "mips/kiss_fft_mipsr1.h"
#endif

#else  /* not FIXED_POINT*/

#   define S_MUL(a,b) ( (a)*(b) )

#   define S_MUL2(a,b) ( (a)*(b) )

#define C_MUL(m,a,b) \

    do{ (m).r = (a).r*(b).r - (a).i*(b).i;\
        (m).i = (a).r*(b).i + (a).i*(b).r; }while(0)
#define C_MULC(m,a,b) \

    do{ (m).r = (a).r*(b).r + (a).i*(b).i;\
        (m).i = (a).i*(b).r - (a).r*(b).i; }while(0)

#define C_MUL4(m,a,b) C_MUL(m,a,b)


#   define C_FIXDIV(c,div) /* NOOP */

#   define C_MULBYSCALAR( c, s ) \

    do{ (c).r *= (s);\
        (c).i *= (s); }while(0)
#endif

#ifndef CHECK_OVERFLOW_OP
#  define CHECK_OVERFLOW_OP(a,op,b) /* noop */

#endif

#ifndef C_ADD
#define  C_ADD( res, a,b)\

    do { \
            CHECK_OVERFLOW_OP((a).r,+,(b).r)\
            CHECK_OVERFLOW_OP((a).i,+,(b).i)\
            (res).r=(a).r+(b).r;  (res).i=(a).i+(b).i; \
    }while(0)
#define  C_SUB( res, a,b)\

    do { \
            CHECK_OVERFLOW_OP((a).r,-,(b).r)\
            CHECK_OVERFLOW_OP((a).i,-,(b).i)\
            (res).r=(a).r-(b).r;  (res).i=(a).i-(b).i; \
    }while(0)
#define C_ADDTO( res , a)\

    do { \
            CHECK_OVERFLOW_OP((res).r,+,(a).r)\
            CHECK_OVERFLOW_OP((res).i,+,(a).i)\
            (res).r += (a).r;  (res).i += (a).i;\
    }while(0)

#define C_SUBFROM( res , a)\

    do {\
            CHECK_OVERFLOW_OP((res).r,-,(a).r)\
            CHECK_OVERFLOW_OP((res).i,-,(a).i)\
            (res).r -= (a).r;  (res).i -= (a).i; \
    }while(0)
#endif /* C_ADD defined */

#ifdef FIXED_POINT
/*#  define KISS_FFT_COS(phase)  TRIG_UPSCALE*floor(MIN(32767,MAX(-32767,.5+32768 * cos (phase))))
#  define KISS_FFT_SIN(phase)  TRIG_UPSCALE*floor(MIN(32767,MAX(-32767,.5+32768 * sin (phase))))*/
#  define KISS_FFT_COS(phase)  floor(.5+TWID_MAX*cos (phase))

#  define KISS_FFT_SIN(phase)  floor(.5+TWID_MAX*sin (phase))

#  define HALF_OF(x) ((x)>>1)

#elif defined(USE_SIMD)
#  define KISS_FFT_COS(phase) _mm_set1_ps( cos(phase) )

#  define KISS_FFT_SIN(phase) _mm_set1_ps( sin(phase) )

#  define HALF_OF(x) ((x)*_mm_set1_ps(.5f))

#else
#  define KISS_FFT_COS(phase) (kiss_fft_scalar) cos(phase)

#  define KISS_FFT_SIN(phase) (kiss_fft_scalar) sin(phase)

#  define HALF_OF(x) ((x)*.5f)

#endif

#define  kf_cexp(x,phase) \

        do{ \
                (x)->r = KISS_FFT_COS(phase);\
                (x)->i = KISS_FFT_SIN(phase);\
        }while(0)

#define  kf_cexp2(x,phase) \

   do{ \
      (x)->r = TRIG_UPSCALE*celt_cos_norm((phase));\
      (x)->i = TRIG_UPSCALE*celt_cos_norm((phase)-32768);\
}while(0)

#endif /* KISS_FFT_GUTS_H */