4ede311055
Audio notes (opus codec) A lot of different improvements and bug fixes Thanks to: https://github.com/DrKLO/Telegram/issues/293 https://github.com/DrKLO/Telegram/issues/256 FOSS configuration not ready yet I will move main dev branch to github in next couple commits
184 lines
5.9 KiB
C
184 lines
5.9 KiB
C
/*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
|
|
|
|
|
|
# define S_MUL(a,b) MULT16_32_Q15(b, a)
|
|
|
|
# define C_MUL(m,a,b) \
|
|
do{ (m).r = SUB32(S_MUL((a).r,(b).r) , S_MUL((a).i,(b).i)); \
|
|
(m).i = ADD32(S_MUL((a).r,(b).i) , S_MUL((a).i,(b).r)); }while(0)
|
|
|
|
# define C_MULC(m,a,b) \
|
|
do{ (m).r = ADD32(S_MUL((a).r,(b).r) , S_MUL((a).i,(b).i)); \
|
|
(m).i = SUB32(S_MUL((a).i,(b).r) , S_MUL((a).r,(b).i)); }while(0)
|
|
|
|
# define C_MUL4(m,a,b) \
|
|
do{ (m).r = SHR32(SUB32(S_MUL((a).r,(b).r) , S_MUL((a).i,(b).i)),2); \
|
|
(m).i = SHR32(ADD32(S_MUL((a).r,(b).i) , S_MUL((a).i,(b).r)),2); }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((a).r,(b).r); (res).i=ADD32((a).i,(b).i); \
|
|
}while(0)
|
|
#define C_SUB( res, a,b)\
|
|
do {(res).r=SUB32((a).r,(b).r); (res).i=SUB32((a).i,(b).i); \
|
|
}while(0)
|
|
#define C_ADDTO( res , a)\
|
|
do {(res).r = ADD32((res).r, (a).r); (res).i = ADD32((res).i,(a).i);\
|
|
}while(0)
|
|
|
|
#define C_SUBFROM( res , a)\
|
|
do {(res).r = ADD32((res).r,(a).r); (res).i = SUB32((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
|
|
|
|
#else /* not FIXED_POINT*/
|
|
|
|
# define S_MUL(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 */
|