RNNoise lib cleaning

Removing unneeded files.

Bug: webrtc:9076
Change-Id: If54b612ef8c9e5c27f868ab039a340fbbc215445
Reviewed-on: https://chromium-review.googlesource.com/995934Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Ale Bzk <alessiob@chromium.org>
Cr-Commit-Position: refs/heads/master@{#550712}

third_party/rnnoise/README.chromium

@@ -19,6 +19,5 @@ Local Modifications:
  - rnn.c
  - rnn_data.c
  - tansig_table.h
-* rnn_data.c cleaned and renamed into rnn_vad_weights.h
-* rnn.c merged with tansig_table.h, cleaned and renamed into rnn_activations.h
 * KissFFT: non-floating point parts removed, code clean, from C to C++
+  class wrapper added

third_party/rnnoise/src/_kiss_fft_guts.h

-/*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 THIRD_PARTY_RNNOISE_SRC__KISS_FFT_GUTS_H_
-#define THIRD_PARTY_RNNOISE_SRC__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_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(MIPSr1_ASM)
-// #include "mips/kiss_fft_mipsr1.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  // THIRD_PARTY_RNNOISE_SRC__KISS_FFT_GUTS_H_