[opus] [RFC PATCH v1 2/2] armv7(float): Optimize encode usecase using NE10 library

Viswanath Puttagunta viswanath.puttagunta at linaro.org
Tue Jan 20 09:37:24 PST 2015


Optimize opus encode (float only) usecase using ARM NE10
library. Mainly effects opus_fft and ctl_mdct_forward
and related functions.

This optimization can be used for ARM CPUs that have NEON
VFP unit. This patch only enables optimizations for ARMv7.

Official ARM NE10 library page available at
http://projectne10.github.io/Ne10/

To enable this optimization, use
--enable-intrinsics --with-NE10=<install_prefix>
or
--enable-intrinsics --with-NE10-libraries=<NE10_lib_dir> --with-NE10-includes=<NE10_includes_dir>

Compile time checks made during configure process to make sure
optimization option available only when compiler supports NEON
instrinsics.

Runtime checks made to make sure optimized functions only called
on appropriate hardware.
---
 Makefile.am                          |   30 +--
 celt/arm/arm_celt_ne10_fft_map.c     |   65 ++++++
 celt/arm/arm_celt_ne10_mdct_map.c    |   53 +++++
 celt/arm/celt_ne10_fft.c             |  101 ++++++++++
 celt/arm/celt_ne10_mdct.c            |  159 +++++++++++++++
 celt/arm/fft_arm.h                   |   65 ++++++
 celt/arm/mdct_arm.h                  |   52 +++++
 celt/celt_encoder.c                  |    4 +-
 celt/dump_modes/Makefile             |   21 +-
 celt/dump_modes/dump_mode_arm_ne10.c |  103 ++++++++++
 celt/dump_modes/dump_modes.c         |   22 +-
 celt/dump_modes/dump_modes_arch.h    |   14 ++
 celt/kiss_fft.c                      |   18 +-
 celt/kiss_fft.h                      |   44 +++-
 celt/mdct.c                          |    2 +-
 celt/mdct.h                          |   29 ++-
 celt/static_modes_float.h            |   25 +++
 celt/static_modes_float_arm_ne10.h   |  367 ++++++++++++++++++++++++++++++++++
 celt/tests/test_unit_dft.c           |   14 +-
 celt/tests/test_unit_mdct.c          |   19 +-
 celt_headers.mk                      |    3 +
 celt_sources.mk                      |    6 +
 configure.ac                         |   81 ++++++++
 src/analysis.c                       |    2 +-
 src/opus_multistream_encoder.c       |    3 +-
 25 files changed, 1278 insertions(+), 24 deletions(-)
 create mode 100644 celt/arm/arm_celt_ne10_fft_map.c
 create mode 100644 celt/arm/arm_celt_ne10_mdct_map.c
 create mode 100644 celt/arm/celt_ne10_fft.c
 create mode 100644 celt/arm/celt_ne10_mdct.c
 create mode 100644 celt/arm/fft_arm.h
 create mode 100644 celt/arm/mdct_arm.h
 create mode 100644 celt/dump_modes/dump_mode_arm_ne10.c
 create mode 100644 celt/dump_modes/dump_modes_arch.h
 create mode 100644 celt/static_modes_float_arm_ne10.h

diff --git a/Makefile.am b/Makefile.am
index 95323ca..5ad93aa 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -10,7 +10,7 @@ lib_LTLIBRARIES = libopus.la
 DIST_SUBDIRS = doc
 
 AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_srcdir)/celt -I$(top_srcdir)/silk \
-              -I$(top_srcdir)/silk/float -I$(top_srcdir)/silk/fixed
+              -I$(top_srcdir)/silk/float -I$(top_srcdir)/silk/fixed $(NE10_CFLAGS)
 
 include celt_sources.mk
 include silk_sources.mk
@@ -47,6 +47,10 @@ CELT_SOURCES += $(CELT_SOURCES_ARM_NEON_INTR)
 OPUS_ARM_NEON_INTR_CPPFLAGS = -mfpu=neon
 endif
 
+if HAVE_ARM_NE10
+CELT_SOURCES += $(CELT_SOURCES_ARM_NE10)
+endif
+
 if OPUS_ARM_EXTERNAL_ASM
 nodist_libopus_la_SOURCES = $(CELT_SOURCES_ARM_ASM:.s=-gnu.S)
 BUILT_SOURCES = $(CELT_SOURCES_ARM_ASM:.s=-gnu.S) \
@@ -64,7 +68,7 @@ include opus_headers.mk
 
 libopus_la_SOURCES = $(CELT_SOURCES) $(SILK_SOURCES) $(OPUS_SOURCES)
 libopus_la_LDFLAGS = -no-undefined -version-info @OPUS_LT_CURRENT@:@OPUS_LT_REVISION@:@OPUS_LT_AGE@
-libopus_la_LIBADD = $(LIBM)
+libopus_la_LIBADD = $(NE10_LIBS) $(LIBM)
 
 pkginclude_HEADERS = include/opus.h include/opus_multistream.h include/opus_types.h include/opus_defines.h
 
@@ -77,32 +81,32 @@ TESTS = celt/tests/test_unit_types celt/tests/test_unit_mathops celt/tests/test_
 
 opus_demo_SOURCES = src/opus_demo.c
 
-opus_demo_LDADD = libopus.la $(LIBM)
+opus_demo_LDADD = libopus.la $(NE10_LIBS) $(LIBM)
 
 repacketizer_demo_SOURCES = src/repacketizer_demo.c
 
-repacketizer_demo_LDADD = libopus.la $(LIBM)
+repacketizer_demo_LDADD = libopus.la $(NE10_LIBS) $(LIBM)
 
 opus_compare_SOURCES = src/opus_compare.c
 opus_compare_LDADD = $(LIBM)
 
 tests_test_opus_api_SOURCES = tests/test_opus_api.c tests/test_opus_common.h
-tests_test_opus_api_LDADD = libopus.la $(LIBM)
+tests_test_opus_api_LDADD = libopus.la $(NE10_LIBS) $(LIBM)
 
 tests_test_opus_encode_SOURCES = tests/test_opus_encode.c tests/test_opus_common.h
-tests_test_opus_encode_LDADD = libopus.la $(LIBM)
+tests_test_opus_encode_LDADD = libopus.la $(NE10_LIBS) $(LIBM)
 
 tests_test_opus_decode_SOURCES = tests/test_opus_decode.c tests/test_opus_common.h
-tests_test_opus_decode_LDADD = libopus.la $(LIBM)
+tests_test_opus_decode_LDADD = libopus.la $(NE10_LIBS) $(LIBM)
 
 tests_test_opus_padding_SOURCES = tests/test_opus_padding.c tests/test_opus_common.h
-tests_test_opus_padding_LDADD = libopus.la $(LIBM)
+tests_test_opus_padding_LDADD = libopus.la $(NE10_LIBS) $(LIBM)
 
 celt_tests_test_unit_cwrs32_SOURCES = celt/tests/test_unit_cwrs32.c
 celt_tests_test_unit_cwrs32_LDADD = $(LIBM)
 
 celt_tests_test_unit_dft_SOURCES = celt/tests/test_unit_dft.c
-celt_tests_test_unit_dft_LDADD = $(LIBM)
+celt_tests_test_unit_dft_LDADD = $(NE10_LIBS) $(LIBM)
 
 celt_tests_test_unit_entropy_SOURCES = celt/tests/test_unit_entropy.c
 celt_tests_test_unit_entropy_LDADD = $(LIBM)
@@ -119,7 +123,7 @@ endif
 endif
 
 celt_tests_test_unit_mdct_SOURCES = celt/tests/test_unit_mdct.c
-celt_tests_test_unit_mdct_LDADD = $(LIBM)
+celt_tests_test_unit_mdct_LDADD = $(NE10_LIBS) $(LIBM)
 
 celt_tests_test_unit_rotation_SOURCES = celt/tests/test_unit_rotation.c
 celt_tests_test_unit_rotation_LDADD = $(LIBM)
@@ -269,6 +273,8 @@ endif
 
 if OPUS_ARM_NEON_INTR
 CELT_ARM_NEON_INTR_OBJ = $(CELT_SOURCES_ARM_NEON_INTR:.c=.lo) \
-			%test_unit_rotation.o %test_unit_mathops.o
-$(CELT_ARM_NEON_INTR_OBJ): CFLAGS += $(OPUS_ARM_NEON_INTR_CPPFLAGS)
+                        $(CELT_SOURCES_ARM_NE10:.c=.lo) \
+			               %test_unit_rotation.o %test_unit_mathops.o \
+                        %test_unit_mdct.o %test_unit_dft.o
+$(CELT_ARM_NEON_INTR_OBJ): CFLAGS += $(OPUS_ARM_NEON_INTR_CPPFLAGS) $(NE10_CFLAGS)
 endif
diff --git a/celt/arm/arm_celt_ne10_fft_map.c b/celt/arm/arm_celt_ne10_fft_map.c
new file mode 100644
index 0000000..5bb7b5f
--- /dev/null
+++ b/celt/arm/arm_celt_ne10_fft_map.c
@@ -0,0 +1,65 @@
+/* Copyright (c) 2015-2016 Xiph.Org Foundation
+   Written by Viswanath Puttagunta */
+/**
+   @file arm_celt_ne10_fft_map.c
+   @brief Map for ARM Neon optimizations for fft using NE10
+ */
+
+/*
+   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.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "kiss_fft.h"
+
+#if defined(OPUS_HAVE_RTCD) && defined(HAVE_ARM_NE10)
+#ifdef CUSTOM_MODES
+int (*const OPUS_FFT_ALLOC_ARCH[OPUS_ARCHMASK+1])(kiss_fft_state *st) = {
+   opus_fft_alloc_arch_c,           /* ARMv4 */
+   opus_fft_alloc_arch_c,           /* EDSP */
+   opus_fft_alloc_arch_c,           /* Media */
+   opus_fft_alloc_arm_float_neon    /* Neon with NE10 library support */
+};
+
+void (*const OPUS_FFT_FREE_ARCH[OPUS_ARCHMASK+1])(kiss_fft_state *st) = {
+   opus_fft_free_arch_c,              /* ARMv4 */
+   opus_fft_free_arch_c,              /* EDSP */
+   opus_fft_free_arch_c,              /* Media */
+   opus_fft_free_arm_float_neon       /* Neon with NE10 */
+};
+#endif /* CUSTOM_MODES */
+
+void (*const OPUS_FFT[OPUS_ARCHMASK+1])(const kiss_fft_state *cfg,
+                                       const kiss_fft_cpx *fin,
+                                       kiss_fft_cpx *fout) = {
+   opus_fft_c,                   /* ARMv4 */
+   opus_fft_c,                   /* EDSP */
+   opus_fft_c,                   /* Media */
+   opus_fft_float_neon           /* Neon with NE10 */
+};
+
+#endif
diff --git a/celt/arm/arm_celt_ne10_mdct_map.c b/celt/arm/arm_celt_ne10_mdct_map.c
new file mode 100644
index 0000000..6df7af3
--- /dev/null
+++ b/celt/arm/arm_celt_ne10_mdct_map.c
@@ -0,0 +1,53 @@
+/* Copyright (c) 2015-2016 Xiph.Org Foundation
+   Written by Viswanath Puttagunta */
+/**
+   @file arm_celt_ne10_mdct_map.c
+   @brief Map for ARM Neon optimizations for mdct using NE10
+ */
+
+/*
+   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.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "kiss_fft.h"
+#include "mdct.h"
+
+#if defined(OPUS_HAVE_RTCD) && defined(HAVE_ARM_NE10)
+
+void (*const CLT_MDCT_FORWARD_ARCH[OPUS_ARCHMASK+1])(const mdct_lookup *l,
+                                      kiss_fft_scalar *in,
+                                      kiss_fft_scalar * OPUS_RESTRICT out,
+                                      const opus_val16 *window,
+                                      int overlap, int shift, int stride) = {
+   clt_mdct_forward_c,           /* ARMv4 */
+   clt_mdct_forward_c,           /* EDSP */
+   clt_mdct_forward_c,           /* Media */
+   clt_mdct_forward_float_neon   /* Neon with NE10 */
+};
+
+#endif
diff --git a/celt/arm/celt_ne10_fft.c b/celt/arm/celt_ne10_fft.c
new file mode 100644
index 0000000..fe00b25
--- /dev/null
+++ b/celt/arm/celt_ne10_fft.c
@@ -0,0 +1,101 @@
+/* Copyright (c) 2015-2016 Xiph.Org Foundation
+   Written by Viswanath Puttagunta */
+/**
+   @file celt_ne10_fft.c
+   @brief ARM Neon optimizations for fft using NE10 library
+ */
+
+/*
+   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 SKIP_CONFIG_H
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#endif
+
+#include <arm_neon.h>
+#include <NE10_init.h>
+#include <NE10_dsp.h>
+#include "../kiss_fft.h"
+#include "stack_alloc.h"
+#include "os_support.h"
+#include "stack_alloc.h"
+
+#ifdef CUSTOM_MODES
+
+int opus_fft_alloc_arm_float_neon(kiss_fft_state *st)
+{
+   st->priv = (void *)ne10_fft_alloc_c2c_float32_neon(st->nfft);
+   if (st->priv == NULL) {
+      printf("Unable to ne10 alloc\n");
+      return -1;
+   }
+   return 0;
+}
+
+void opus_fft_free_arm_float_neon(kiss_fft_state *st)
+{
+   ne10_fft_cfg_float32_t cfg = (ne10_fft_cfg_float32_t)st->priv;
+
+   if (cfg)
+      free((void *)cfg);
+}
+#endif
+
+void opus_fft_float_neon(const kiss_fft_state *st,
+                        const kiss_fft_cpx *fin,
+                        kiss_fft_cpx *fout)
+{
+   ne10_fft_cfg_float32_t cfg = (ne10_fft_cfg_float32_t)st->priv;
+   VARDECL(ne10_fft_cpx_float32_t, temp);
+   VARDECL(ne10_fft_cpx_float32_t, tempin);
+   SAVE_STACK;
+   int N2 = st->nfft >> 1;
+   float32x4_t inq, outq;
+   float32x2_t scale;
+   float *in = (float *)fin;
+   float *out;
+   int i;
+   ALLOC(temp, st->nfft, ne10_fft_cpx_float32_t);
+   ALLOC(tempin, st->nfft, ne10_fft_cpx_float32_t);
+
+   out = (float *)tempin;
+   scale = vld1_dup_f32(&st->scale);
+   for (i = 0; i < N2; i++) {
+      inq = vld1q_f32(in);
+      in += 4;
+      outq = vmulq_lane_f32(inq, scale, 0);
+      vst1q_f32(out, outq);
+      out += 4;
+   }
+
+   cfg->buffer = (ne10_fft_cpx_float32_t *)&temp[0];
+
+   ne10_fft_c2c_1d_float32_neon((ne10_fft_cpx_float32_t *)fout,
+                                 (ne10_fft_cpx_float32_t *)tempin,
+                                 cfg, 0);
+   RESTORE_STACK;
+}
diff --git a/celt/arm/celt_ne10_mdct.c b/celt/arm/celt_ne10_mdct.c
new file mode 100644
index 0000000..177bda2
--- /dev/null
+++ b/celt/arm/celt_ne10_mdct.c
@@ -0,0 +1,159 @@
+/* Copyright (c) 2015-2016 Xiph.Org Foundation
+   Written by Viswanath Puttagunta */
+/**
+   @file celt_ne10_mdct.c
+   @brief ARM Neon optimizations for mdct using NE10 library
+ */
+
+/*
+   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 SKIP_CONFIG_H
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#endif
+
+#include "../kiss_fft.h"
+#include "_kiss_fft_guts.h"
+#include "../mdct.h"
+#include "stack_alloc.h"
+#include "os_support.h"
+#include "stack_alloc.h"
+
+void clt_mdct_forward_float_neon(const mdct_lookup *l,
+                                 kiss_fft_scalar *in,
+                                 kiss_fft_scalar * OPUS_RESTRICT out,
+                                 const opus_val16 *window,
+                                 int overlap, int shift, int stride)
+{
+   int i;
+   int N, N2, N4;
+   VARDECL(kiss_fft_scalar, f);
+   VARDECL(kiss_fft_cpx, f2);
+   const kiss_fft_state *st = l->kfft[shift];
+   const kiss_twiddle_scalar *trig;
+
+   SAVE_STACK;
+
+   N = l->n;
+   trig = l->trig;
+   for (i=0;i<shift;i++)
+   {
+      N >>= 1;
+      trig += N;
+   }
+   N2 = N>>1;
+   N4 = N>>2;
+
+   ALLOC(f, N2, kiss_fft_scalar);
+   ALLOC(f2, N4, kiss_fft_cpx);
+
+   /* Consider the input to be composed of four blocks: [a, b, c, d] */
+   /* Window, shuffle, fold */
+   {
+      /* Temp pointers to make it really clear to the compiler what we're doing */
+      const kiss_fft_scalar * OPUS_RESTRICT xp1 = in+(overlap>>1);
+      const kiss_fft_scalar * OPUS_RESTRICT xp2 = in+N2-1+(overlap>>1);
+      kiss_fft_scalar * OPUS_RESTRICT yp = f;
+      const opus_val16 * OPUS_RESTRICT wp1 = window+(overlap>>1);
+      const opus_val16 * OPUS_RESTRICT wp2 = window+(overlap>>1)-1;
+      for(i=0;i<((overlap+3)>>2);i++)
+      {
+         /* Real part arranged as -d-cR, Imag part arranged as -b+aR*/
+         *yp++ = MULT16_32_Q15(*wp2, xp1[N2]) + MULT16_32_Q15(*wp1,*xp2);
+         *yp++ = MULT16_32_Q15(*wp1, *xp1)    - MULT16_32_Q15(*wp2, xp2[-N2]);
+         xp1+=2;
+         xp2-=2;
+         wp1+=2;
+         wp2-=2;
+      }
+      wp1 = window;
+      wp2 = window+overlap-1;
+      for(;i<N4-((overlap+3)>>2);i++)
+      {
+         /* Real part arranged as a-bR, Imag part arranged as -c-dR */
+         *yp++ = *xp2;
+         *yp++ = *xp1;
+         xp1+=2;
+         xp2-=2;
+      }
+      for(;i<N4;i++)
+      {
+         /* Real part arranged as a-bR, Imag part arranged as -c-dR */
+         *yp++ =  -MULT16_32_Q15(*wp1, xp1[-N2]) + MULT16_32_Q15(*wp2, *xp2);
+         *yp++ = MULT16_32_Q15(*wp2, *xp1)     + MULT16_32_Q15(*wp1, xp2[N2]);
+         xp1+=2;
+         xp2-=2;
+         wp1+=2;
+         wp2-=2;
+      }
+   }
+   /* Pre-rotation */
+   {
+      kiss_fft_scalar * OPUS_RESTRICT yp = f;
+      const kiss_twiddle_scalar *t = &trig[0];
+      for(i=0;i<N4;i++)
+      {
+         kiss_fft_cpx yc;
+         kiss_twiddle_scalar t0, t1;
+         kiss_fft_scalar re, im, yr, yi;
+         t0 = t[i];
+         t1 = t[N4+i];
+         re = *yp++;
+         im = *yp++;
+         yr = S_MUL(re,t0)  -  S_MUL(im,t1);
+         yi = S_MUL(im,t0)  +  S_MUL(re,t1);
+         yc.r = yr;
+         yc.i = yi;
+         f2[i] = yc;
+      }
+   }
+
+   /* N/4 complex FFT, does not downscale anymore */
+   opus_fft(st, f2, (kiss_fft_cpx *)f, opus_select_arch());
+
+   /* Post-rotate */
+   {
+      /* Temp pointers to make it really clear to the compiler what we're doing */
+      const kiss_fft_cpx * OPUS_RESTRICT fp = (kiss_fft_cpx *)f;
+      kiss_fft_scalar * OPUS_RESTRICT yp1 = out;
+      kiss_fft_scalar * OPUS_RESTRICT yp2 = out+stride*(N2-1);
+      const kiss_twiddle_scalar *t = &trig[0];
+      /* Temp pointers to make it really clear to the compiler what we're doing */
+      for(i=0;i<N4;i++)
+      {
+         kiss_fft_scalar yr, yi;
+         yr = S_MUL(fp->i,t[N4+i]) - S_MUL(fp->r,t[i]);
+         yi = S_MUL(fp->r,t[N4+i]) + S_MUL(fp->i,t[i]);
+         *yp1 = yr;
+         *yp2 = yi;
+         fp++;
+         yp1 += 2*stride;
+         yp2 -= 2*stride;
+      }
+   }
+   RESTORE_STACK;
+}
diff --git a/celt/arm/fft_arm.h b/celt/arm/fft_arm.h
new file mode 100644
index 0000000..16f008b
--- /dev/null
+++ b/celt/arm/fft_arm.h
@@ -0,0 +1,65 @@
+/* Copyright (c) 2015-2016 Xiph.Org Foundation
+   Written by Viswanath Puttagunta */
+/**
+   @file fft_arm.h
+   @brief ARM Neon Intrinsic optimizations for fft using NE10 library
+ */
+
+/*
+   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.
+*/
+
+
+#if !defined(FFT_ARM_H)
+#define FFT_ARM_H
+
+#include "config.h"
+#include "kiss_fft.h"
+
+#if !defined(FIXED_POINT)
+#if defined(HAVE_ARM_NE10)
+
+int opus_fft_alloc_arm_float_neon(kiss_fft_state *st);
+void opus_fft_free_arm_float_neon(kiss_fft_state *st);
+
+void opus_fft_float_neon(const kiss_fft_state *st,
+                        const kiss_fft_cpx *fin,
+                        kiss_fft_cpx *fout);
+#if !defined(OPUS_HAVE_RTCD)
+#define OVERRIDE_OPUS_FFT (1)
+
+#define opus_fft_alloc_arch(_st, arch) \
+   opus_fft_alloc_arm_float_neon(_st)
+
+#define opus_fft_free_arch(_st, arch) opus_fft_free_arm_float_neon(_st)
+
+#define opus_fft(_st, _fin, _fout, arch) \
+   opus_fft_float_neon(_st, _fin, _fout)
+
+#endif /* OPUS_HAVE_RTCD */
+
+#endif /* HAVE_ARM_NE10 */
+#endif /* FIXED_POINT */
+
+#endif
diff --git a/celt/arm/mdct_arm.h b/celt/arm/mdct_arm.h
new file mode 100644
index 0000000..d0a8a8c
--- /dev/null
+++ b/celt/arm/mdct_arm.h
@@ -0,0 +1,52 @@
+/* Copyright (c) 2015-2016 Xiph.Org Foundation
+   Written by Viswanath Puttagunta */
+/**
+   @file arm_mdct.h
+   @brief ARM Neon Intrinsic optimizations for mdct using NE10 library
+ */
+
+/*
+   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.
+*/
+
+#if !defined(MDCT_ARM_H)
+#define MDCT_ARM_H
+
+#include "config.h"
+#include "mdct.h"
+
+#if !defined(FIXED_POINT) && defined(HAVE_ARM_NE10)
+/** Compute a forward MDCT and scale by 4/N, trashes the input array */
+void clt_mdct_forward_float_neon(const mdct_lookup *l, kiss_fft_scalar *in,
+      kiss_fft_scalar * OPUS_RESTRICT out,
+      const opus_val16 *window, int overlap, int shift, int stride);
+
+#if !defined(OPUS_HAVE_RTCD)
+#define OVERRIDE_OPUS_MDCT (1)
+#define clt_mdct_forward(_l, _in, _out, _window, _int, _shift, _stride, _arch) \
+      clt_mdct_forward_float_neon((_l, _in, _out, _window, _int, _shift, _stride)
+#endif /* OPUS_HAVE_RTCD */
+#endif /* !defined(FIXED_POINT) && defined(HAVE_ARM_NE10) */
+
+#endif
diff --git a/celt/celt_encoder.c b/celt/celt_encoder.c
index 86a3fbb..9de9a92 100644
--- a/celt/celt_encoder.c
+++ b/celt/celt_encoder.c
@@ -435,7 +435,9 @@ static void compute_mdcts(const CELTMode *mode, int shortBlocks, celt_sig * OPUS
       for (b=0;b<B;b++)
       {
          /* Interleaving the sub-frames while doing the MDCTs */
-         clt_mdct_forward(&mode->mdct, in+c*(B*N+overlap)+b*N, &out[b+c*N*B], mode->window, overlap, shift, B);
+         clt_mdct_forward(&mode->mdct, in+c*(B*N+overlap)+b*N,
+                        &out[b+c*N*B], mode->window, overlap, shift, B,
+                        opus_select_arch());
       }
    } while (++c<CC);
    if (CC==2&&C==1)
diff --git a/celt/dump_modes/Makefile b/celt/dump_modes/Makefile
index 74d527e..8890706 100644
--- a/celt/dump_modes/Makefile
+++ b/celt/dump_modes/Makefile
@@ -1,10 +1,29 @@
+
 CFLAGS=-O2 -Wall -Wextra -DHAVE_CONFIG_H
 INCLUDES=-I. -I../ -I../.. -I../../include
 
+SOURCES = dump_modes.c \
+          ../modes.c \
+          ../cwrs.c \
+          ../rate.c \
+          ../entenc.c \
+          ../entdec.c \
+          ../mathops.c \
+          ../mdct.c \
+          ../kiss_fft.c
+
+ifdef HAVE_ARM_NE10
+CC = gcc
+CFLAGS += -mfpu=neon
+INCLUDES += -I$(NE10_INCDIR) -DHAVE_ARM_NE10 -DOPUS_ARM_NEON_INTR
+LIBDIR = -l:$(NE10_LIBDIR)/libNE10.so
+SOURCES += ../arm/celt_neon_intr.c dump_mode_arm_ne10.c
+endif
+
 all: dump_modes
 
 dump_modes:
-	$(CC) $(CFLAGS) $(INCLUDES) -DCUSTOM_MODES_ONLY -DCUSTOM_MODES dump_modes.c ../modes.c ../cwrs.c ../rate.c ../entenc.c ../entdec.c ../mathops.c ../mdct.c ../kiss_fft.c -o dump_modes -lm
+	$(PREFIX)$(CC) $(CFLAGS) $(INCLUDES) -DCUSTOM_MODES_ONLY -DCUSTOM_MODES $(SOURCES) -o $@ $(LIBDIR) -lm
 
 clean:
 	rm -f dump_modes
diff --git a/celt/dump_modes/dump_mode_arm_ne10.c b/celt/dump_modes/dump_mode_arm_ne10.c
new file mode 100644
index 0000000..30c7423
--- /dev/null
+++ b/celt/dump_modes/dump_mode_arm_ne10.c
@@ -0,0 +1,103 @@
+/* Copyright (c) 2015-2016 Xiph.Org Foundation
+   Written by Viswanath Puttagunta */
+/*
+   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.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "modes.h"
+#include "dump_modes_arch.h"
+#include <NE10_dsp.h>
+
+static FILE *file;
+
+void dump_modes_arch_init(CELTMode **modes, int nb_modes)
+{
+   int i;
+
+   file = fopen(ARM_NE10_ARCH_FILE_NAME, "w");
+   fprintf(file, "/* The contents of this file was automatically generated by\n");
+   fprintf(file, " * dump_mode_arm_ne10.c with arguments:");
+   for (i=0;i<nb_modes;i++)
+   {
+      CELTMode *mode = modes[i];
+      fprintf(file, " %d %d",mode->Fs,mode->shortMdctSize*mode->nbShortMdcts);
+   }
+   fprintf(file, "\n * It contains static definitions for some pre-defined modes. */\n");
+   fprintf(file, "#include <NE10_init.h>\n");
+}
+
+void dump_modes_arch_finalize()
+{
+   fclose(file);
+}
+
+void dump_mode_arch(CELTMode *mode)
+{
+   int k, j;
+   int mdctSize;
+
+   mdctSize = mode->shortMdctSize*mode->nbShortMdcts;
+
+   fprintf(file, "#ifndef NE10_FFT_PARAMS%d_%d\n", mode->Fs, mdctSize);
+   fprintf(file, "#define NE10_FFT_PARAMS%d_%d\n", mode->Fs, mdctSize);
+   printf("Printing ne10 values\n");
+   ne10_fft_cfg_float32_t cfg;
+   /* cfg->factors */
+   for(k=0;k<=mode->mdct.maxshift;k++) {
+      fprintf(file, "static const ne10_int32_t ne10_factors_%d[%d] = {\n",
+                  mode->mdct.kfft[k]->nfft, (NE10_MAXFACTORS * 2));
+      for(j=0;j<(NE10_MAXFACTORS * 2);j++) {
+         cfg = (ne10_fft_cfg_float32_t)mode->mdct.kfft[k]->priv;
+         fprintf(file, "%d,%c", cfg->factors[j],(j+16)%15==0?'\n':' ');
+      }
+      fprintf (file, "};\n");
+   }
+
+   /* cfg->twiddles */
+   for(k=0;k<=mode->mdct.maxshift;k++) {
+      fprintf(file, "static const ne10_fft_cpx_float32_t ne10_twiddles_%d[%d] = {\n",
+                  mode->mdct.kfft[k]->nfft, mode->mdct.kfft[k]->nfft);
+      for(j=0;j<mode->mdct.kfft[k]->nfft;j++) {
+         cfg = (ne10_fft_cfg_float32_t)mode->mdct.kfft[k]->priv;
+         fprintf(file, "{%f,%f},%c", cfg->twiddles[j].r, cfg->twiddles[j].i,(j+4)%3==0?'\n':' ');
+      }
+      fprintf (file, "};\n");
+   }
+
+   for(k=0;k<=mode->mdct.maxshift;k++) {
+      fprintf(file, "static const ne10_fft_state_float32_t cfg_arch_%d = {\n",
+               mode->mdct.kfft[k]->nfft);
+      cfg = (ne10_fft_cfg_float32_t)mode->mdct.kfft[k]->priv;
+      fprintf(file, "%d,\n", cfg->nfft);
+      fprintf(file, "(ne10_int32_t *)ne10_factors_%d,\n", mode->mdct.kfft[k]->nfft);
+      fprintf(file, "(ne10_fft_cpx_float32_t *)ne10_twiddles_%d,\n", mode->mdct.kfft[k]->nfft);
+      fprintf(file, "NULL,\n");  /* buffer */
+      fprintf(file, "(ne10_fft_cpx_float32_t *)&ne10_twiddles_%d[%d],\n",
+                     mode->mdct.kfft[k]->nfft, cfg->nfft);
+      fprintf(file, "};\n");
+   }
+   fprintf(file, "#endif  /*end NE10_FFT_PARAMS%d_%d*/\n", mode->Fs, mdctSize);
+}
diff --git a/celt/dump_modes/dump_modes.c b/celt/dump_modes/dump_modes.c
index ae6a8c1..80947ec 100644
--- a/celt/dump_modes/dump_modes.c
+++ b/celt/dump_modes/dump_modes.c
@@ -35,6 +35,7 @@
 #include "modes.h"
 #include "celt.h"
 #include "rate.h"
+#include "dump_modes_arch.h"
 
 #define INT16 "%d"
 #define INT32 "%d"
@@ -62,6 +63,10 @@ void dump_modes(FILE *file, CELTMode **modes, int nb_modes)
    fprintf(file, "\n   It contains static definitions for some pre-defined modes. */\n");
    fprintf(file, "#include \"modes.h\"\n");
    fprintf(file, "#include \"rate.h\"\n");
+   fprintf(file, "\n#ifdef HAVE_ARM_NE10\n");
+   fprintf(file, "#define OVERRIDE_FFT 1\n");
+   fprintf(file, "#include \"%s\"\n", ARM_NE10_ARCH_FILE_NAME);
+   fprintf(file, "#endif\n");
 
    fprintf(file, "\n");
 
@@ -149,6 +154,9 @@ void dump_modes(FILE *file, CELTMode **modes, int nb_modes)
          fprintf (file, "{" WORD16 ", " WORD16 "},%c", mode->mdct.kfft[0]->twiddles[j].r, mode->mdct.kfft[0]->twiddles[j].i,(j+3)%2==0?'\n':' ');
       fprintf (file, "};\n");
 
+#ifdef OVERRIDE_FFT
+      dump_mode_arch(mode);
+#endif
       /* FFT Bitrev tables */
       for (k=0;k<=mode->mdct.maxshift;k++)
       {
@@ -183,6 +191,13 @@ void dump_modes(FILE *file, CELTMode **modes, int nb_modes)
          fprintf (file, "},    /* factors */\n");
          fprintf (file, "fft_bitrev%d,    /* bitrev */\n", mode->mdct.kfft[k]->nfft);
          fprintf (file, "fft_twiddles%d_%d,    /* bitrev */\n", mode->Fs, mdctSize);
+
+         fprintf (file, "#ifdef OVERRIDE_FFT\n");
+         fprintf (file, "(void *)&cfg_arch_%d,\n", mode->mdct.kfft[k]->nfft);
+         fprintf (file, "#else\n");
+         fprintf (file, "NULL,\n");
+         fprintf(file, "#endif\n");
+
          fprintf (file, "};\n");
 
          fprintf(file, "#endif\n");
@@ -205,7 +220,6 @@ void dump_modes(FILE *file, CELTMode **modes, int nb_modes)
       fprintf(file, "#endif\n");
       fprintf(file, "\n");
 
-
       /* Print the actual mode data */
       fprintf(file, "static const CELTMode mode%d_%d_%d = {\n", mode->Fs, mdctSize, mode->overlap);
       fprintf(file, INT32 ",    /* Fs */\n", mode->Fs);
@@ -323,8 +337,14 @@ int main(int argc, char **argv)
       }
    }
    file = fopen(BASENAME ".h", "w");
+#ifdef OVERRIDE_FFT
+   dump_modes_arch_init(m, nb);
+#endif
    dump_modes(file, m, nb);
    fclose(file);
+#ifdef OVERRIDE_FFT
+   dump_modes_arch_finalize();
+#endif
    for (i=0;i<nb;i++)
       opus_custom_mode_destroy(m[i]);
    free(m);
diff --git a/celt/dump_modes/dump_modes_arch.h b/celt/dump_modes/dump_modes_arch.h
new file mode 100644
index 0000000..f7df55b
--- /dev/null
+++ b/celt/dump_modes/dump_modes_arch.h
@@ -0,0 +1,14 @@
+#ifndef DUMP_MODE_ARCH_H
+#define DUMP_MODE_ARCH_H
+
+void dump_modes_arch_init();
+void dump_mode_arch(CELTMode *mode);
+void dump_modes_arch_finalize();
+
+#define ARM_NE10_ARCH_FILE_NAME "static_modes_float_arm_ne10.h"
+
+#if defined(HAVE_ARM_NE10)
+#define OVERRIDE_FFT (1)
+#endif
+
+#endif
diff --git a/celt/kiss_fft.c b/celt/kiss_fft.c
index cc487fc..9a76206 100644
--- a/celt/kiss_fft.c
+++ b/celt/kiss_fft.c
@@ -423,6 +423,11 @@ static void compute_twiddles(kiss_twiddle_cpx *twiddles, int nfft)
 #endif
 }
 
+int opus_fft_alloc_arch_c(kiss_fft_state *st) {
+   (void)st;
+   return 0;
+}
+
 /*
  *
  * Allocates all necessary storage space for the fft and ifft.
@@ -478,6 +483,10 @@ kiss_fft_state *opus_fft_alloc_twiddles(int nfft,void * mem,size_t * lenmem,  co
         if (st->bitrev==NULL)
             goto fail;
         compute_bitrev_table(0, bitrev, 1,1, st->factors,st);
+
+        /* Initialize architecture specific fft parameters */
+        if (opus_fft_alloc_arch(st, opus_select_arch()))
+            goto fail;
     }
     return st;
 fail:
@@ -485,15 +494,20 @@ fail:
     return NULL;
 }
 
-kiss_fft_state *opus_fft_alloc(int nfft,void * mem,size_t * lenmem )
+kiss_fft_state *opus_fft_alloc(int nfft,void * mem,size_t * lenmem)
 {
    return opus_fft_alloc_twiddles(nfft, mem, lenmem, NULL);
 }
 
+void opus_fft_free_arch_c(kiss_fft_state *st) {
+   (void)st;
+}
+
 void opus_fft_free(const kiss_fft_state *cfg)
 {
    if (cfg)
    {
+      opus_fft_free_arch((kiss_fft_state *)cfg, opus_select_arch());
       opus_free((opus_int16*)cfg->bitrev);
       if (cfg->shift < 0)
          opus_free((kiss_twiddle_cpx*)cfg->twiddles);
@@ -551,7 +565,7 @@ void opus_fft_impl(const kiss_fft_state *st,kiss_fft_cpx *fout)
     }
 }
 
-void opus_fft(const kiss_fft_state *st,const kiss_fft_cpx *fin,kiss_fft_cpx *fout)
+void opus_fft_c(const kiss_fft_state *st,const kiss_fft_cpx *fin,kiss_fft_cpx *fout)
 {
    int i;
    opus_val16 scale;
diff --git a/celt/kiss_fft.h b/celt/kiss_fft.h
index 390b54d..f9232f9 100644
--- a/celt/kiss_fft.h
+++ b/celt/kiss_fft.h
@@ -32,6 +32,7 @@
 #include <stdlib.h>
 #include <math.h>
 #include "arch.h"
+#include "cpu_support.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -59,6 +60,7 @@ extern "C" {
 #   define kiss_twiddle_scalar float
 #   define KF_SUFFIX _celt_single
 # endif
+
 #endif
 
 typedef struct {
@@ -87,8 +89,13 @@ typedef struct kiss_fft_state{
     opus_int16 factors[2*MAXFACTORS];
     const opus_int16 *bitrev;
     const kiss_twiddle_cpx *twiddles;
+    void *priv; /* Used by arch specfic optimizations */
 } kiss_fft_state;
 
+#if !defined(FIXED_POINT) && defined(HAVE_ARM_NE10)
+#include "arm/fft_arm.h"
+#endif
+
 /*typedef struct kiss_fft_state* kiss_fft_cfg;*/
 
 /**
@@ -128,7 +135,7 @@ kiss_fft_state *opus_fft_alloc(int nfft,void * mem,size_t * lenmem);
  * Note that each element is complex and can be accessed like
     f[k].r and f[k].i
  * */
-void opus_fft(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout);
+void opus_fft_c(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout);
 void opus_ifft(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout);
 
 void opus_fft_impl(const kiss_fft_state *st,kiss_fft_cpx *fout);
@@ -136,6 +143,41 @@ void opus_ifft_impl(const kiss_fft_state *st,kiss_fft_cpx *fout);
 
 void opus_fft_free(const kiss_fft_state *cfg);
 
+
+void opus_fft_free_arch_c(kiss_fft_state *st);
+int opus_fft_alloc_arch_c(kiss_fft_state *st);
+
+#if !defined(OVERRIDE_OPUS_FFT)
+/* Is run-time CPU detection enabled on this platform? */
+#if defined(OPUS_HAVE_RTCD) && (defined(HAVE_ARM_NE10))
+
+int (*const OPUS_FFT_ALLOC_ARCH[OPUS_ARCHMASK+1])(kiss_fft_state *st);
+
+#define opus_fft_alloc_arch(_st, arch) \
+         ((*OPUS_FFT_ALLOC_ARCH[(arch)&OPUS_ARCHMASK])(_st))
+
+void (*const OPUS_FFT_FREE_ARCH[OPUS_ARCHMASK+1])(kiss_fft_state *st);
+#define opus_fft_free_arch(_st, arch) \
+         ((*OPUS_FFT_FREE_ARCH[(arch)&OPUS_ARCHMASK])(_st))
+
+void (*const OPUS_FFT[OPUS_ARCHMASK+1])(const kiss_fft_state *cfg,
+                                       const kiss_fft_cpx *fin,
+                                       kiss_fft_cpx *fout);
+#define opus_fft(_cfg, _fin, _fout, arch) \
+   ((*OPUS_FFT[(arch)&OPUS_ARCHMASK])(_cfg, _fin, _fout))
+#else /* else for if defined(OPUS_HAVE_RTCD) && (defined(HAVE_ARM_NE10)) */
+
+#define opus_fft_alloc_arch(_st, arch) \
+         opus_fft_alloc_arch_c(_st)
+
+#define opus_fft_free_arch(_st, arch) \
+         opus_fft_free_arch_c(_st)
+
+#define opus_fft(_cfg, _fin, _fout, arch) \
+         opus_fft_c(_cfg, _fin, _fout)
+#endif /* end if defined(OPUS_HAVE_RTCD) && (defined(HAVE_ARM_NE10)) */
+#endif /* end if !defined(OVERRIDE_OPUS_FFT) */
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/celt/mdct.c b/celt/mdct.c
index 2795d90..7e55157 100644
--- a/celt/mdct.c
+++ b/celt/mdct.c
@@ -116,7 +116,7 @@ void clt_mdct_clear(mdct_lookup *l)
 
 /* Forward MDCT trashes the input array */
 #ifndef OVERRIDE_clt_mdct_forward
-void clt_mdct_forward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scalar * OPUS_RESTRICT out,
+void clt_mdct_forward_c(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scalar * OPUS_RESTRICT out,
       const opus_val16 *window, int overlap, int shift, int stride)
 {
    int i;
diff --git a/celt/mdct.h b/celt/mdct.h
index d721821..52d7cca 100644
--- a/celt/mdct.h
+++ b/celt/mdct.h
@@ -53,11 +53,16 @@ typedef struct {
    const kiss_twiddle_scalar * OPUS_RESTRICT trig;
 } mdct_lookup;
 
+#if !defined(FIXED_POINT) && defined(HAVE_ARM_NE10)
+#include "arm/mdct_arm.h"
+#endif
+
+
 int clt_mdct_init(mdct_lookup *l,int N, int maxshift);
 void clt_mdct_clear(mdct_lookup *l);
 
 /** Compute a forward MDCT and scale by 4/N, trashes the input array */
-void clt_mdct_forward(const mdct_lookup *l, kiss_fft_scalar *in,
+void clt_mdct_forward_c(const mdct_lookup *l, kiss_fft_scalar *in,
       kiss_fft_scalar * OPUS_RESTRICT out,
       const opus_val16 *window, int overlap, int shift, int stride);
 
@@ -67,4 +72,26 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in,
       kiss_fft_scalar * OPUS_RESTRICT out,
       const opus_val16 * OPUS_RESTRICT window, int overlap, int shift, int stride);
 
+#if !defined(OVERRIDE_OPUS_MDCT)
+/* Is run-time CPU detection enabled on this platform? */
+#if defined(OPUS_HAVE_RTCD) && (defined(HAVE_ARM_NE10))
+
+void (*const CLT_MDCT_FORWARD_ARCH[OPUS_ARCHMASK+1])(const mdct_lookup *l,
+                                      kiss_fft_scalar *in,
+                                      kiss_fft_scalar * OPUS_RESTRICT out,
+                                      const opus_val16 *window,
+                                      int overlap, int shift, int stride);
+
+
+#define clt_mdct_forward(_l, _in, _out, _window, _overlap, _shift, _stride, arch) \
+   ((*CLT_MDCT_FORWARD_ARCH[(arch)&OPUS_ARCHMASK])(_l, _in, _out, \
+                                      _window, _overlap, _shift, _stride))
+#else /* else for if defined(OPUS_HAVE_RTCD) && (defined(HAVE_ARM_NE10)) */
+
+#define clt_mdct_forward(_l, _in, _out, _window, _overlap, _shift, _stride, arch) \
+   clt_mdct_forward_c(_l, _in, _out, _window, _overlap, _shift, _stride)
+
+#endif /* end if defined(OPUS_HAVE_RTCD) && (defined(HAVE_ARM_NE10)) */
+#endif /* end if !defined(OVERRIDE_OPUS_MDCT) */
+
 #endif
diff --git a/celt/static_modes_float.h b/celt/static_modes_float.h
index 2fadb62..e115b79 100644
--- a/celt/static_modes_float.h
+++ b/celt/static_modes_float.h
@@ -4,6 +4,11 @@
 #include "modes.h"
 #include "rate.h"
 
+#ifdef HAVE_ARM_NE10
+#define OVERRIDE_FFT 1
+#include "static_modes_float_arm_ne10.h"
+#endif
+
 #ifndef DEF_WINDOW120
 #define DEF_WINDOW120
 static const opus_val16 window120[120] = {
@@ -431,6 +436,11 @@ static const kiss_fft_state fft_state48000_960_0 = {
 {5, 96, 3, 32, 4, 8, 2, 4, 4, 1, 0, 0, 0, 0, 0, 0, },   /* factors */
 fft_bitrev480,  /* bitrev */
 fft_twiddles48000_960,  /* bitrev */
+#ifdef OVERRIDE_FFT
+(void *)&cfg_arch_480,
+#else
+NULL,
+#endif
 };
 #endif
 
@@ -443,6 +453,11 @@ static const kiss_fft_state fft_state48000_960_1 = {
 {5, 48, 3, 16, 4, 4, 4, 1, 0, 0, 0, 0, 0, 0, 0, 0, },    /* factors */
 fft_bitrev240,  /* bitrev */
 fft_twiddles48000_960,  /* bitrev */
+#ifdef OVERRIDE_FFT
+(void *)&cfg_arch_240,
+#else
+NULL,
+#endif
 };
 #endif
 
@@ -455,6 +470,11 @@ static const kiss_fft_state fft_state48000_960_2 = {
 {5, 24, 3, 8, 2, 4, 4, 1, 0, 0, 0, 0, 0, 0, 0, 0, },    /* factors */
 fft_bitrev120,  /* bitrev */
 fft_twiddles48000_960,  /* bitrev */
+#ifdef OVERRIDE_FFT
+(void *)&cfg_arch_120,
+#else
+NULL,
+#endif
 };
 #endif
 
@@ -467,6 +487,11 @@ static const kiss_fft_state fft_state48000_960_3 = {
 {5, 12, 3, 4, 4, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },    /* factors */
 fft_bitrev60,   /* bitrev */
 fft_twiddles48000_960,  /* bitrev */
+#ifdef OVERRIDE_FFT
+(void *)&cfg_arch_60,
+#else
+NULL,
+#endif
 };
 #endif
 
diff --git a/celt/static_modes_float_arm_ne10.h b/celt/static_modes_float_arm_ne10.h
new file mode 100644
index 0000000..4229048
--- /dev/null
+++ b/celt/static_modes_float_arm_ne10.h
@@ -0,0 +1,367 @@
+/* The contents of this file was automatically generated by
+ * dump_mode_arm_ne10.c with arguments: 48000 960
+ * It contains static definitions for some pre-defined modes. */
+#include <NE10_init.h>
+#ifndef NE10_FFT_PARAMS48000_960
+#define NE10_FFT_PARAMS48000_960
+static const ne10_int32_t ne10_factors_480[64] = {
+4, 40, 4, 30, 2, 15, 5, 3, 3, 1, 1, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, };
+static const ne10_int32_t ne10_factors_240[64] = {
+3, 20, 4, 15, 5, 3, 3, 1, 1, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, };
+static const ne10_int32_t ne10_factors_120[64] = {
+3, 10, 2, 15, 5, 3, 3, 1, 1, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, };
+static const ne10_int32_t ne10_factors_60[64] = {
+2, 5, 5, 3, 3, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+0, 0, 0, 0, };
+static const ne10_fft_cpx_float32_t ne10_twiddles_480[480] = {
+{1.000000,0.000000}, {1.000000,-0.000000}, {1.000000,-0.000000},
+{1.000000,-0.000000}, {0.913545,-0.406737}, {0.669131,-0.743145},
+{1.000000,-0.000000}, {0.669131,-0.743145}, {-0.104529,-0.994522},
+{1.000000,-0.000000}, {0.309017,-0.951057}, {-0.809017,-0.587785},
+{1.000000,-0.000000}, {-0.104529,-0.994522}, {-0.978148,0.207912},
+{1.000000,-0.000000}, {0.978148,-0.207912}, {0.913545,-0.406737},
+{0.809017,-0.587785}, {0.669131,-0.743145}, {0.500000,-0.866025},
+{0.309017,-0.951057}, {0.104528,-0.994522}, {-0.104529,-0.994522},
+{-0.309017,-0.951056}, {-0.500000,-0.866025}, {-0.669131,-0.743145},
+{-0.809017,-0.587785}, {-0.913545,-0.406737}, {-0.978148,-0.207912},
+{1.000000,-0.000000}, {0.998630,-0.052336}, {0.994522,-0.104528},
+{0.987688,-0.156434}, {0.978148,-0.207912}, {0.965926,-0.258819},
+{0.951057,-0.309017}, {0.933580,-0.358368}, {0.913545,-0.406737},
+{0.891007,-0.453991}, {0.866025,-0.500000}, {0.838671,-0.544639},
+{0.809017,-0.587785}, {0.777146,-0.629320}, {0.743145,-0.669131},
+{0.707107,-0.707107}, {0.669131,-0.743145}, {0.629320,-0.777146},
+{0.587785,-0.809017}, {0.544639,-0.838671}, {0.500000,-0.866025},
+{0.453991,-0.891007}, {0.406737,-0.913545}, {0.358368,-0.933580},
+{0.309017,-0.951057}, {0.258819,-0.965926}, {0.207912,-0.978148},
+{0.156434,-0.987688}, {0.104528,-0.994522}, {0.052336,-0.998630},
+{1.000000,-0.000000}, {0.994522,-0.104528}, {0.978148,-0.207912},
+{0.951057,-0.309017}, {0.913545,-0.406737}, {0.866025,-0.500000},
+{0.809017,-0.587785}, {0.743145,-0.669131}, {0.669131,-0.743145},
+{0.587785,-0.809017}, {0.500000,-0.866025}, {0.406737,-0.913545},
+{0.309017,-0.951057}, {0.207912,-0.978148}, {0.104528,-0.994522},
+{-0.000000,-1.000000}, {-0.104529,-0.994522}, {-0.207912,-0.978148},
+{-0.309017,-0.951056}, {-0.406737,-0.913545}, {-0.500000,-0.866025},
+{-0.587785,-0.809017}, {-0.669131,-0.743145}, {-0.743145,-0.669130},
+{-0.809017,-0.587785}, {-0.866025,-0.500000}, {-0.913545,-0.406737},
+{-0.951057,-0.309017}, {-0.978148,-0.207912}, {-0.994522,-0.104528},
+{1.000000,-0.000000}, {0.987688,-0.156434}, {0.951057,-0.309017},
+{0.891007,-0.453991}, {0.809017,-0.587785}, {0.707107,-0.707107},
+{0.587785,-0.809017}, {0.453991,-0.891007}, {0.309017,-0.951057},
+{0.156434,-0.987688}, {-0.000000,-1.000000}, {-0.156434,-0.987688},
+{-0.309017,-0.951056}, {-0.453991,-0.891006}, {-0.587785,-0.809017},
+{-0.707107,-0.707107}, {-0.809017,-0.587785}, {-0.891007,-0.453990},
+{-0.951057,-0.309017}, {-0.987688,-0.156434}, {-1.000000,0.000000},
+{-0.987688,0.156435}, {-0.951057,0.309017}, {-0.891007,0.453991},
+{-0.809017,0.587785}, {-0.707107,0.707107}, {-0.587785,0.809017},
+{-0.453990,0.891007}, {-0.309017,0.951056}, {-0.156435,0.987688},
+{1.000000,-0.000000}, {0.999914,-0.013090}, {0.999657,-0.026177},
+{0.999229,-0.039260}, {0.998630,-0.052336}, {0.997859,-0.065403},
+{0.996917,-0.078459}, {0.995805,-0.091502}, {0.994522,-0.104528},
+{0.993068,-0.117537}, {0.991445,-0.130526}, {0.989651,-0.143493},
+{0.987688,-0.156434}, {0.985556,-0.169350}, {0.983255,-0.182236},
+{0.980785,-0.195090}, {0.978148,-0.207912}, {0.975342,-0.220697},
+{0.972370,-0.233445}, {0.969231,-0.246153}, {0.965926,-0.258819},
+{0.962455,-0.271440}, {0.958820,-0.284015}, {0.955020,-0.296542},
+{0.951057,-0.309017}, {0.946930,-0.321439}, {0.942641,-0.333807},
+{0.938191,-0.346117}, {0.933580,-0.358368}, {0.928810,-0.370557},
+{0.923880,-0.382683}, {0.918791,-0.394744}, {0.913545,-0.406737},
+{0.908143,-0.418660}, {0.902585,-0.430511}, {0.896873,-0.442289},
+{0.891007,-0.453991}, {0.884988,-0.465615}, {0.878817,-0.477159},
+{0.872496,-0.488621}, {0.866025,-0.500000}, {0.859406,-0.511293},
+{0.852640,-0.522499}, {0.845728,-0.533615}, {0.838671,-0.544639},
+{0.831470,-0.555570}, {0.824126,-0.566406}, {0.816642,-0.577145},
+{0.809017,-0.587785}, {0.801254,-0.598325}, {0.793353,-0.608761},
+{0.785317,-0.619094}, {0.777146,-0.629320}, {0.768842,-0.639439},
+{0.760406,-0.649448}, {0.751840,-0.659346}, {0.743145,-0.669131},
+{0.734322,-0.678801}, {0.725374,-0.688355}, {0.716302,-0.697791},
+{0.707107,-0.707107}, {0.697790,-0.716302}, {0.688355,-0.725374},
+{0.678801,-0.734323}, {0.669131,-0.743145}, {0.659346,-0.751840},
+{0.649448,-0.760406}, {0.639439,-0.768842}, {0.629320,-0.777146},
+{0.619094,-0.785317}, {0.608761,-0.793353}, {0.598325,-0.801254},
+{0.587785,-0.809017}, {0.577145,-0.816642}, {0.566406,-0.824126},
+{0.555570,-0.831470}, {0.544639,-0.838671}, {0.533615,-0.845728},
+{0.522498,-0.852640}, {0.511293,-0.859406}, {0.500000,-0.866025},
+{0.488621,-0.872496}, {0.477159,-0.878817}, {0.465614,-0.884988},
+{0.453991,-0.891007}, {0.442289,-0.896873}, {0.430511,-0.902585},
+{0.418660,-0.908143}, {0.406737,-0.913545}, {0.394744,-0.918791},
+{0.382683,-0.923880}, {0.370557,-0.928810}, {0.358368,-0.933580},
+{0.346117,-0.938191}, {0.333807,-0.942641}, {0.321439,-0.946930},
+{0.309017,-0.951057}, {0.296542,-0.955020}, {0.284015,-0.958820},
+{0.271440,-0.962455}, {0.258819,-0.965926}, {0.246153,-0.969231},
+{0.233445,-0.972370}, {0.220697,-0.975342}, {0.207912,-0.978148},
+{0.195090,-0.980785}, {0.182236,-0.983255}, {0.169349,-0.985556},
+{0.156434,-0.987688}, {0.143493,-0.989651}, {0.130526,-0.991445},
+{0.117537,-0.993068}, {0.104528,-0.994522}, {0.091502,-0.995805},
+{0.078459,-0.996917}, {0.065403,-0.997859}, {0.052336,-0.998630},
+{0.039260,-0.999229}, {0.026177,-0.999657}, {0.013090,-0.999914},
+{1.000000,-0.000000}, {0.999657,-0.026177}, {0.998630,-0.052336},
+{0.996917,-0.078459}, {0.994522,-0.104528}, {0.991445,-0.130526},
+{0.987688,-0.156434}, {0.983255,-0.182236}, {0.978148,-0.207912},
+{0.972370,-0.233445}, {0.965926,-0.258819}, {0.958820,-0.284015},
+{0.951057,-0.309017}, {0.942641,-0.333807}, {0.933580,-0.358368},
+{0.923880,-0.382683}, {0.913545,-0.406737}, {0.902585,-0.430511},
+{0.891007,-0.453991}, {0.878817,-0.477159}, {0.866025,-0.500000},
+{0.852640,-0.522499}, {0.838671,-0.544639}, {0.824126,-0.566406},
+{0.809017,-0.587785}, {0.793353,-0.608761}, {0.777146,-0.629320},
+{0.760406,-0.649448}, {0.743145,-0.669131}, {0.725374,-0.688355},
+{0.707107,-0.707107}, {0.688355,-0.725374}, {0.669131,-0.743145},
+{0.649448,-0.760406}, {0.629320,-0.777146}, {0.608761,-0.793353},
+{0.587785,-0.809017}, {0.566406,-0.824126}, {0.544639,-0.838671},
+{0.522498,-0.852640}, {0.500000,-0.866025}, {0.477159,-0.878817},
+{0.453991,-0.891007}, {0.430511,-0.902585}, {0.406737,-0.913545},
+{0.382683,-0.923880}, {0.358368,-0.933580}, {0.333807,-0.942641},
+{0.309017,-0.951057}, {0.284015,-0.958820}, {0.258819,-0.965926},
+{0.233445,-0.972370}, {0.207912,-0.978148}, {0.182236,-0.983255},
+{0.156434,-0.987688}, {0.130526,-0.991445}, {0.104528,-0.994522},
+{0.078459,-0.996917}, {0.052336,-0.998630}, {0.026177,-0.999657},
+{-0.000000,-1.000000}, {-0.026177,-0.999657}, {-0.052336,-0.998630},
+{-0.078459,-0.996917}, {-0.104529,-0.994522}, {-0.130526,-0.991445},
+{-0.156434,-0.987688}, {-0.182236,-0.983255}, {-0.207912,-0.978148},
+{-0.233445,-0.972370}, {-0.258819,-0.965926}, {-0.284015,-0.958820},
+{-0.309017,-0.951056}, {-0.333807,-0.942641}, {-0.358368,-0.933580},
+{-0.382684,-0.923880}, {-0.406737,-0.913545}, {-0.430511,-0.902585},
+{-0.453991,-0.891006}, {-0.477159,-0.878817}, {-0.500000,-0.866025},
+{-0.522499,-0.852640}, {-0.544639,-0.838671}, {-0.566406,-0.824126},
+{-0.587785,-0.809017}, {-0.608761,-0.793353}, {-0.629321,-0.777146},
+{-0.649448,-0.760406}, {-0.669131,-0.743145}, {-0.688355,-0.725374},
+{-0.707107,-0.707107}, {-0.725374,-0.688354}, {-0.743145,-0.669130},
+{-0.760406,-0.649448}, {-0.777146,-0.629320}, {-0.793353,-0.608761},
+{-0.809017,-0.587785}, {-0.824126,-0.566406}, {-0.838671,-0.544639},
+{-0.852640,-0.522498}, {-0.866025,-0.500000}, {-0.878817,-0.477159},
+{-0.891007,-0.453990}, {-0.902585,-0.430511}, {-0.913545,-0.406737},
+{-0.923880,-0.382683}, {-0.933580,-0.358368}, {-0.942642,-0.333807},
+{-0.951057,-0.309017}, {-0.958820,-0.284015}, {-0.965926,-0.258819},
+{-0.972370,-0.233445}, {-0.978148,-0.207912}, {-0.983255,-0.182235},
+{-0.987688,-0.156434}, {-0.991445,-0.130526}, {-0.994522,-0.104528},
+{-0.996917,-0.078459}, {-0.998630,-0.052336}, {-0.999657,-0.026177},
+{1.000000,-0.000000}, {0.999229,-0.039260}, {0.996917,-0.078459},
+{0.993068,-0.117537}, {0.987688,-0.156434}, {0.980785,-0.195090},
+{0.972370,-0.233445}, {0.962455,-0.271440}, {0.951057,-0.309017},
+{0.938191,-0.346117}, {0.923880,-0.382683}, {0.908143,-0.418660},
+{0.891007,-0.453991}, {0.872496,-0.488621}, {0.852640,-0.522499},
+{0.831470,-0.555570}, {0.809017,-0.587785}, {0.785317,-0.619094},
+{0.760406,-0.649448}, {0.734322,-0.678801}, {0.707107,-0.707107},
+{0.678801,-0.734323}, {0.649448,-0.760406}, {0.619094,-0.785317},
+{0.587785,-0.809017}, {0.555570,-0.831470}, {0.522498,-0.852640},
+{0.488621,-0.872496}, {0.453991,-0.891007}, {0.418660,-0.908143},
+{0.382683,-0.923880}, {0.346117,-0.938191}, {0.309017,-0.951057},
+{0.271440,-0.962455}, {0.233445,-0.972370}, {0.195090,-0.980785},
+{0.156434,-0.987688}, {0.117537,-0.993068}, {0.078459,-0.996917},
+{0.039260,-0.999229}, {-0.000000,-1.000000}, {-0.039260,-0.999229},
+{-0.078459,-0.996917}, {-0.117537,-0.993068}, {-0.156434,-0.987688},
+{-0.195090,-0.980785}, {-0.233445,-0.972370}, {-0.271440,-0.962455},
+{-0.309017,-0.951056}, {-0.346117,-0.938191}, {-0.382684,-0.923880},
+{-0.418660,-0.908143}, {-0.453991,-0.891006}, {-0.488621,-0.872496},
+{-0.522499,-0.852640}, {-0.555570,-0.831470}, {-0.587785,-0.809017},
+{-0.619094,-0.785317}, {-0.649448,-0.760406}, {-0.678801,-0.734322},
+{-0.707107,-0.707107}, {-0.734323,-0.678801}, {-0.760406,-0.649448},
+{-0.785317,-0.619094}, {-0.809017,-0.587785}, {-0.831470,-0.555570},
+{-0.852640,-0.522498}, {-0.872496,-0.488621}, {-0.891007,-0.453990},
+{-0.908143,-0.418660}, {-0.923880,-0.382683}, {-0.938191,-0.346117},
+{-0.951057,-0.309017}, {-0.962455,-0.271440}, {-0.972370,-0.233445},
+{-0.980785,-0.195090}, {-0.987688,-0.156434}, {-0.993068,-0.117537},
+{-0.996917,-0.078459}, {-0.999229,-0.039260}, {-1.000000,0.000000},
+{-0.999229,0.039260}, {-0.996917,0.078459}, {-0.993068,0.117538},
+{-0.987688,0.156435}, {-0.980785,0.195090}, {-0.972370,0.233446},
+{-0.962455,0.271441}, {-0.951057,0.309017}, {-0.938191,0.346117},
+{-0.923880,0.382683}, {-0.908143,0.418660}, {-0.891007,0.453991},
+{-0.872496,0.488621}, {-0.852640,0.522499}, {-0.831470,0.555570},
+{-0.809017,0.587785}, {-0.785317,0.619094}, {-0.760406,0.649448},
+{-0.734322,0.678801}, {-0.707107,0.707107}, {-0.678801,0.734323},
+{-0.649448,0.760406}, {-0.619094,0.785317}, {-0.587785,0.809017},
+{-0.555570,0.831470}, {-0.522498,0.852640}, {-0.488621,0.872496},
+{-0.453990,0.891007}, {-0.418659,0.908143}, {-0.382683,0.923880},
+{-0.346117,0.938191}, {-0.309017,0.951056}, {-0.271441,0.962455},
+{-0.233445,0.972370}, {-0.195090,0.980785}, {-0.156435,0.987688},
+{-0.117537,0.993068}, {-0.078459,0.996917}, {-0.039260,0.999229},
+};
+static const ne10_fft_cpx_float32_t ne10_twiddles_240[240] = {
+{1.000000,0.000000}, {1.000000,-0.000000}, {1.000000,-0.000000},
+{1.000000,-0.000000}, {0.913545,-0.406737}, {0.669131,-0.743145},
+{1.000000,-0.000000}, {0.669131,-0.743145}, {-0.104529,-0.994522},
+{1.000000,-0.000000}, {0.309017,-0.951057}, {-0.809017,-0.587785},
+{1.000000,-0.000000}, {-0.104529,-0.994522}, {-0.978148,0.207912},
+{1.000000,-0.000000}, {0.994522,-0.104528}, {0.978148,-0.207912},
+{0.951057,-0.309017}, {0.913545,-0.406737}, {0.866025,-0.500000},
+{0.809017,-0.587785}, {0.743145,-0.669131}, {0.669131,-0.743145},
+{0.587785,-0.809017}, {0.500000,-0.866025}, {0.406737,-0.913545},
+{0.309017,-0.951057}, {0.207912,-0.978148}, {0.104528,-0.994522},
+{1.000000,-0.000000}, {0.978148,-0.207912}, {0.913545,-0.406737},
+{0.809017,-0.587785}, {0.669131,-0.743145}, {0.500000,-0.866025},
+{0.309017,-0.951057}, {0.104528,-0.994522}, {-0.104529,-0.994522},
+{-0.309017,-0.951056}, {-0.500000,-0.866025}, {-0.669131,-0.743145},
+{-0.809017,-0.587785}, {-0.913545,-0.406737}, {-0.978148,-0.207912},
+{1.000000,-0.000000}, {0.951057,-0.309017}, {0.809017,-0.587785},
+{0.587785,-0.809017}, {0.309017,-0.951057}, {-0.000000,-1.000000},
+{-0.309017,-0.951056}, {-0.587785,-0.809017}, {-0.809017,-0.587785},
+{-0.951057,-0.309017}, {-1.000000,0.000000}, {-0.951057,0.309017},
+{-0.809017,0.587785}, {-0.587785,0.809017}, {-0.309017,0.951056},
+{1.000000,-0.000000}, {0.999657,-0.026177}, {0.998630,-0.052336},
+{0.996917,-0.078459}, {0.994522,-0.104528}, {0.991445,-0.130526},
+{0.987688,-0.156434}, {0.983255,-0.182236}, {0.978148,-0.207912},
+{0.972370,-0.233445}, {0.965926,-0.258819}, {0.958820,-0.284015},
+{0.951057,-0.309017}, {0.942641,-0.333807}, {0.933580,-0.358368},
+{0.923880,-0.382683}, {0.913545,-0.406737}, {0.902585,-0.430511},
+{0.891007,-0.453991}, {0.878817,-0.477159}, {0.866025,-0.500000},
+{0.852640,-0.522499}, {0.838671,-0.544639}, {0.824126,-0.566406},
+{0.809017,-0.587785}, {0.793353,-0.608761}, {0.777146,-0.629320},
+{0.760406,-0.649448}, {0.743145,-0.669131}, {0.725374,-0.688355},
+{0.707107,-0.707107}, {0.688355,-0.725374}, {0.669131,-0.743145},
+{0.649448,-0.760406}, {0.629320,-0.777146}, {0.608761,-0.793353},
+{0.587785,-0.809017}, {0.566406,-0.824126}, {0.544639,-0.838671},
+{0.522498,-0.852640}, {0.500000,-0.866025}, {0.477159,-0.878817},
+{0.453991,-0.891007}, {0.430511,-0.902585}, {0.406737,-0.913545},
+{0.382683,-0.923880}, {0.358368,-0.933580}, {0.333807,-0.942641},
+{0.309017,-0.951057}, {0.284015,-0.958820}, {0.258819,-0.965926},
+{0.233445,-0.972370}, {0.207912,-0.978148}, {0.182236,-0.983255},
+{0.156434,-0.987688}, {0.130526,-0.991445}, {0.104528,-0.994522},
+{0.078459,-0.996917}, {0.052336,-0.998630}, {0.026177,-0.999657},
+{1.000000,-0.000000}, {0.998630,-0.052336}, {0.994522,-0.104528},
+{0.987688,-0.156434}, {0.978148,-0.207912}, {0.965926,-0.258819},
+{0.951057,-0.309017}, {0.933580,-0.358368}, {0.913545,-0.406737},
+{0.891007,-0.453991}, {0.866025,-0.500000}, {0.838671,-0.544639},
+{0.809017,-0.587785}, {0.777146,-0.629320}, {0.743145,-0.669131},
+{0.707107,-0.707107}, {0.669131,-0.743145}, {0.629320,-0.777146},
+{0.587785,-0.809017}, {0.544639,-0.838671}, {0.500000,-0.866025},
+{0.453991,-0.891007}, {0.406737,-0.913545}, {0.358368,-0.933580},
+{0.309017,-0.951057}, {0.258819,-0.965926}, {0.207912,-0.978148},
+{0.156434,-0.987688}, {0.104528,-0.994522}, {0.052336,-0.998630},
+{-0.000000,-1.000000}, {-0.052336,-0.998630}, {-0.104529,-0.994522},
+{-0.156434,-0.987688}, {-0.207912,-0.978148}, {-0.258819,-0.965926},
+{-0.309017,-0.951056}, {-0.358368,-0.933580}, {-0.406737,-0.913545},
+{-0.453991,-0.891006}, {-0.500000,-0.866025}, {-0.544639,-0.838671},
+{-0.587785,-0.809017}, {-0.629321,-0.777146}, {-0.669131,-0.743145},
+{-0.707107,-0.707107}, {-0.743145,-0.669130}, {-0.777146,-0.629320},
+{-0.809017,-0.587785}, {-0.838671,-0.544639}, {-0.866025,-0.500000},
+{-0.891007,-0.453990}, {-0.913545,-0.406737}, {-0.933580,-0.358368},
+{-0.951057,-0.309017}, {-0.965926,-0.258819}, {-0.978148,-0.207912},
+{-0.987688,-0.156434}, {-0.994522,-0.104528}, {-0.998630,-0.052336},
+{1.000000,-0.000000}, {0.996917,-0.078459}, {0.987688,-0.156434},
+{0.972370,-0.233445}, {0.951057,-0.309017}, {0.923880,-0.382683},
+{0.891007,-0.453991}, {0.852640,-0.522499}, {0.809017,-0.587785},
+{0.760406,-0.649448}, {0.707107,-0.707107}, {0.649448,-0.760406},
+{0.587785,-0.809017}, {0.522498,-0.852640}, {0.453991,-0.891007},
+{0.382683,-0.923880}, {0.309017,-0.951057}, {0.233445,-0.972370},
+{0.156434,-0.987688}, {0.078459,-0.996917}, {-0.000000,-1.000000},
+{-0.078459,-0.996917}, {-0.156434,-0.987688}, {-0.233445,-0.972370},
+{-0.309017,-0.951056}, {-0.382684,-0.923880}, {-0.453991,-0.891006},
+{-0.522499,-0.852640}, {-0.587785,-0.809017}, {-0.649448,-0.760406},
+{-0.707107,-0.707107}, {-0.760406,-0.649448}, {-0.809017,-0.587785},
+{-0.852640,-0.522498}, {-0.891007,-0.453990}, {-0.923880,-0.382683},
+{-0.951057,-0.309017}, {-0.972370,-0.233445}, {-0.987688,-0.156434},
+{-0.996917,-0.078459}, {-1.000000,0.000000}, {-0.996917,0.078459},
+{-0.987688,0.156435}, {-0.972370,0.233446}, {-0.951057,0.309017},
+{-0.923880,0.382683}, {-0.891007,0.453991}, {-0.852640,0.522499},
+{-0.809017,0.587785}, {-0.760406,0.649448}, {-0.707107,0.707107},
+{-0.649448,0.760406}, {-0.587785,0.809017}, {-0.522498,0.852640},
+{-0.453990,0.891007}, {-0.382683,0.923880}, {-0.309017,0.951056},
+{-0.233445,0.972370}, {-0.156435,0.987688}, {-0.078459,0.996917},
+};
+static const ne10_fft_cpx_float32_t ne10_twiddles_120[120] = {
+{1.000000,0.000000}, {1.000000,-0.000000}, {1.000000,-0.000000},
+{1.000000,-0.000000}, {0.913545,-0.406737}, {0.669131,-0.743145},
+{1.000000,-0.000000}, {0.669131,-0.743145}, {-0.104529,-0.994522},
+{1.000000,-0.000000}, {0.309017,-0.951057}, {-0.809017,-0.587785},
+{1.000000,-0.000000}, {-0.104529,-0.994522}, {-0.978148,0.207912},
+{1.000000,-0.000000}, {0.978148,-0.207912}, {0.913545,-0.406737},
+{0.809017,-0.587785}, {0.669131,-0.743145}, {0.500000,-0.866025},
+{0.309017,-0.951057}, {0.104528,-0.994522}, {-0.104529,-0.994522},
+{-0.309017,-0.951056}, {-0.500000,-0.866025}, {-0.669131,-0.743145},
+{-0.809017,-0.587785}, {-0.913545,-0.406737}, {-0.978148,-0.207912},
+{1.000000,-0.000000}, {0.998630,-0.052336}, {0.994522,-0.104528},
+{0.987688,-0.156434}, {0.978148,-0.207912}, {0.965926,-0.258819},
+{0.951057,-0.309017}, {0.933580,-0.358368}, {0.913545,-0.406737},
+{0.891007,-0.453991}, {0.866025,-0.500000}, {0.838671,-0.544639},
+{0.809017,-0.587785}, {0.777146,-0.629320}, {0.743145,-0.669131},
+{0.707107,-0.707107}, {0.669131,-0.743145}, {0.629320,-0.777146},
+{0.587785,-0.809017}, {0.544639,-0.838671}, {0.500000,-0.866025},
+{0.453991,-0.891007}, {0.406737,-0.913545}, {0.358368,-0.933580},
+{0.309017,-0.951057}, {0.258819,-0.965926}, {0.207912,-0.978148},
+{0.156434,-0.987688}, {0.104528,-0.994522}, {0.052336,-0.998630},
+{1.000000,-0.000000}, {0.994522,-0.104528}, {0.978148,-0.207912},
+{0.951057,-0.309017}, {0.913545,-0.406737}, {0.866025,-0.500000},
+{0.809017,-0.587785}, {0.743145,-0.669131}, {0.669131,-0.743145},
+{0.587785,-0.809017}, {0.500000,-0.866025}, {0.406737,-0.913545},
+{0.309017,-0.951057}, {0.207912,-0.978148}, {0.104528,-0.994522},
+{-0.000000,-1.000000}, {-0.104529,-0.994522}, {-0.207912,-0.978148},
+{-0.309017,-0.951056}, {-0.406737,-0.913545}, {-0.500000,-0.866025},
+{-0.587785,-0.809017}, {-0.669131,-0.743145}, {-0.743145,-0.669130},
+{-0.809017,-0.587785}, {-0.866025,-0.500000}, {-0.913545,-0.406737},
+{-0.951057,-0.309017}, {-0.978148,-0.207912}, {-0.994522,-0.104528},
+{1.000000,-0.000000}, {0.987688,-0.156434}, {0.951057,-0.309017},
+{0.891007,-0.453991}, {0.809017,-0.587785}, {0.707107,-0.707107},
+{0.587785,-0.809017}, {0.453991,-0.891007}, {0.309017,-0.951057},
+{0.156434,-0.987688}, {-0.000000,-1.000000}, {-0.156434,-0.987688},
+{-0.309017,-0.951056}, {-0.453991,-0.891006}, {-0.587785,-0.809017},
+{-0.707107,-0.707107}, {-0.809017,-0.587785}, {-0.891007,-0.453990},
+{-0.951057,-0.309017}, {-0.987688,-0.156434}, {-1.000000,0.000000},
+{-0.987688,0.156435}, {-0.951057,0.309017}, {-0.891007,0.453991},
+{-0.809017,0.587785}, {-0.707107,0.707107}, {-0.587785,0.809017},
+{-0.453990,0.891007}, {-0.309017,0.951056}, {-0.156435,0.987688},
+};
+static const ne10_fft_cpx_float32_t ne10_twiddles_60[60] = {
+{1.000000,0.000000}, {1.000000,-0.000000}, {1.000000,-0.000000},
+{1.000000,-0.000000}, {0.913545,-0.406737}, {0.669131,-0.743145},
+{1.000000,-0.000000}, {0.669131,-0.743145}, {-0.104529,-0.994522},
+{1.000000,-0.000000}, {0.309017,-0.951057}, {-0.809017,-0.587785},
+{1.000000,-0.000000}, {-0.104529,-0.994522}, {-0.978148,0.207912},
+{1.000000,-0.000000}, {0.994522,-0.104528}, {0.978148,-0.207912},
+{0.951057,-0.309017}, {0.913545,-0.406737}, {0.866025,-0.500000},
+{0.809017,-0.587785}, {0.743145,-0.669131}, {0.669131,-0.743145},
+{0.587785,-0.809017}, {0.500000,-0.866025}, {0.406737,-0.913545},
+{0.309017,-0.951057}, {0.207912,-0.978148}, {0.104528,-0.994522},
+{1.000000,-0.000000}, {0.978148,-0.207912}, {0.913545,-0.406737},
+{0.809017,-0.587785}, {0.669131,-0.743145}, {0.500000,-0.866025},
+{0.309017,-0.951057}, {0.104528,-0.994522}, {-0.104529,-0.994522},
+{-0.309017,-0.951056}, {-0.500000,-0.866025}, {-0.669131,-0.743145},
+{-0.809017,-0.587785}, {-0.913545,-0.406737}, {-0.978148,-0.207912},
+{1.000000,-0.000000}, {0.951057,-0.309017}, {0.809017,-0.587785},
+{0.587785,-0.809017}, {0.309017,-0.951057}, {-0.000000,-1.000000},
+{-0.309017,-0.951056}, {-0.587785,-0.809017}, {-0.809017,-0.587785},
+{-0.951057,-0.309017}, {-1.000000,0.000000}, {-0.951057,0.309017},
+{-0.809017,0.587785}, {-0.587785,0.809017}, {-0.309017,0.951056},
+};
+static const ne10_fft_state_float32_t cfg_arch_480 = {
+120,
+(ne10_int32_t *)ne10_factors_480,
+(ne10_fft_cpx_float32_t *)ne10_twiddles_480,
+NULL,
+(ne10_fft_cpx_float32_t *)&ne10_twiddles_480[120],
+};
+static const ne10_fft_state_float32_t cfg_arch_240 = {
+60,
+(ne10_int32_t *)ne10_factors_240,
+(ne10_fft_cpx_float32_t *)ne10_twiddles_240,
+NULL,
+(ne10_fft_cpx_float32_t *)&ne10_twiddles_240[60],
+};
+static const ne10_fft_state_float32_t cfg_arch_120 = {
+30,
+(ne10_int32_t *)ne10_factors_120,
+(ne10_fft_cpx_float32_t *)ne10_twiddles_120,
+NULL,
+(ne10_fft_cpx_float32_t *)&ne10_twiddles_120[30],
+};
+static const ne10_fft_state_float32_t cfg_arch_60 = {
+15,
+(ne10_int32_t *)ne10_factors_60,
+(ne10_fft_cpx_float32_t *)ne10_twiddles_60,
+NULL,
+(ne10_fft_cpx_float32_t *)&ne10_twiddles_60[15],
+};
+#endif  /*end NE10_FFT_PARAMS48000_960*/
diff --git a/celt/tests/test_unit_dft.c b/celt/tests/test_unit_dft.c
index 57db0e3..8996f17 100644
--- a/celt/tests/test_unit_dft.c
+++ b/celt/tests/test_unit_dft.c
@@ -45,6 +45,16 @@
 #include "mathops.c"
 #include "entcode.c"
 
+#if defined(OPUS_HAVE_RTCD) && \
+         (defined(OPUS_ARM_ASM) || defined(OPUS_ARM_NEON_INTR))
+#include "arm/armcpu.c"
+#if defined(HAVE_ARM_NE10)
+#include "arm/celt_ne10_fft.c"
+#include "arm/arm_celt_ne10_fft_map.c"
+#endif
+#elif defined(OPUS_X86_MAY_HAVE_SSE2) || defined(OPUS_X86_MAY_HAVE_SSE4_1)
+#include "x86/x86cpu.c"
+#endif
 
 #ifndef M_PI
 #define M_PI 3.141592653
@@ -125,7 +135,7 @@ void test1d(int nfft,int isinverse)
     if (isinverse)
        opus_ifft(cfg,in,out);
     else
-       opus_fft(cfg,in,out);
+       opus_fft(cfg,in,out, opus_select_arch());
 
     /*for (k=0;k<nfft;++k) printf("%d %d ", out[k].r, out[k].i);printf("\n");*/
 
@@ -153,10 +163,12 @@ int main(int argc,char ** argv)
         test1d(256,0);
         test1d(256,1);
 #ifndef RADIX_TWO_ONLY
+#ifndef HAVE_ARM_NE10
         test1d(36,0);
         test1d(36,1);
         test1d(50,0);
         test1d(50,1);
+#endif
         test1d(120,0);
         test1d(120,1);
 #endif
diff --git a/celt/tests/test_unit_mdct.c b/celt/tests/test_unit_mdct.c
index ac8957f..950d824 100644
--- a/celt/tests/test_unit_mdct.c
+++ b/celt/tests/test_unit_mdct.c
@@ -46,6 +46,19 @@
 #include "mathops.c"
 #include "entcode.c"
 
+#if defined(OPUS_HAVE_RTCD) && \
+         (defined(OPUS_ARM_ASM) || defined(OPUS_ARM_NEON_INTR))
+#include "arm/armcpu.c"
+#if defined(HAVE_ARM_NE10)
+#include "arm/celt_ne10_fft.c"
+#include "arm/celt_ne10_mdct.c"
+#include "arm/arm_celt_ne10_fft_map.c"
+#include "arm/arm_celt_ne10_mdct_map.c"
+#endif
+#elif defined(OPUS_X86_MAY_HAVE_SSE2) || defined(OPUS_X86_MAY_HAVE_SSE4_1)
+#include "x86/x86cpu.c"
+#endif
+
 #ifndef M_PI
 #define M_PI 3.141592653
 #endif
@@ -156,7 +169,7 @@ void test1d(int nfft,int isinverse)
           out[nfft-k-1] = out[nfft/2+k];
        check_inv(in,out,nfft,isinverse);
     } else {
-       clt_mdct_forward(&cfg,in,out,window, nfft/2, 0, 1);
+       clt_mdct_forward(&cfg,in,out,window, nfft/2, 0, 1, opus_select_arch());
        check(in_copy,out,nfft,isinverse);
     }
     /*for (k=0;k<nfft;++k) printf("%d %d ", out[k].r, out[k].i);printf("\n");*/
@@ -188,6 +201,9 @@ int main(int argc,char ** argv)
         test1d(2048,0);
         test1d(2048,1);
 #ifndef RADIX_TWO_ONLY
+
+/* ARM NE10 library does not support below values */
+#ifndef HAVE_ARM_NE10
         test1d(36,0);
         test1d(36,1);
         test1d(40,0);
@@ -196,6 +212,7 @@ int main(int argc,char ** argv)
         test1d(60,1);
         test1d(120,0);
         test1d(120,1);
+#endif
         test1d(240,0);
         test1d(240,1);
         test1d(480,0);
diff --git a/celt_headers.mk b/celt_headers.mk
index 5bb193e..c51c3ee 100644
--- a/celt_headers.mk
+++ b/celt_headers.mk
@@ -31,11 +31,14 @@ celt/stack_alloc.h \
 celt/vq.h \
 celt/static_modes_float.h \
 celt/static_modes_fixed.h \
+celt/static_modes_float_arm_ne10.h \
 celt/arm/armcpu.h \
 celt/arm/fixed_armv4.h \
 celt/arm/fixed_armv5e.h \
 celt/arm/kiss_fft_armv4.h \
 celt/arm/kiss_fft_armv5e.h \
 celt/arm/pitch_arm.h \
+celt/arm/fft_arm.h \
+celt/arm/mdct_arm.h \
 celt/x86/pitch_sse.h \
 celt/x86/x86cpu.h
diff --git a/celt_sources.mk b/celt_sources.mk
index 29ec937..28c7bae 100644
--- a/celt_sources.mk
+++ b/celt_sources.mk
@@ -35,3 +35,9 @@ celt/arm/armopts.s.in
 
 CELT_SOURCES_ARM_NEON_INTR = \
 celt/arm/celt_neon_intr.c
+
+CELT_SOURCES_ARM_NE10= \
+celt/arm/celt_ne10_fft.c \
+celt/arm/celt_ne10_mdct.c \
+celt/arm/arm_celt_ne10_fft_map.c \
+celt/arm/arm_celt_ne10_mdct_map.c
diff --git a/configure.ac b/configure.ac
index 87cece9..baa3425 100644
--- a/configure.ac
+++ b/configure.ac
@@ -351,6 +351,80 @@ AM_CONDITIONAL([OPUS_ARM_EXTERNAL_ASM],
 AM_CONDITIONAL([HAVE_SSE4_1], [false])
 AM_CONDITIONAL([HAVE_SSE2], [false])
 
+AC_DEFUN([OPUS_PATH_NE10],
+   [
+      AC_ARG_WITH(NE10,
+                  AC_HELP_STRING([--with-NE10=PFX],[Prefix where libNE10 is installed (optional)]),
+                  NE10_prefix="$withval", NE10_prefix="")
+      AC_ARG_WITH(NE10-libraries,
+                  AC_HELP_STRING([--with-NE10-libraries=DIR],
+                        [Directory where libNE10 library is installed (optional)]),
+                  NE10_libraries="$withval", NE10_libraries="")
+      AC_ARG_WITH(NE10-includes,
+                  AC_HELP_STRING([--with-NE10-includes=DIR],
+                                 [Directory where libNE10 header files are installed (optional)]),
+                  NE10_includes="$withval", ogg_includes="")
+
+      if test "x$NE10_libraries" != "x" ; then
+         NE10_LIBS="-L$NE10_libraries"
+      elif test "x$NE10_prefix" = "xno" || test "x$NE10_prefix" = "xyes" ; then
+         NE10_LIBS=""
+      elif test "x$NE10_prefix" != "x" ; then
+         NE10_LIBS="-L$NE10_prefix/lib"
+      elif test "x$prefix" != "xNONE" ; then
+         NE10_LIBS="-L$prefix/lib"
+      fi
+
+      if test "x$NE10_prefix" != "xno" ; then
+         NE10_LIBS="$NE10_LIBS -lNE10"
+      fi
+
+      if test "x$NE10_includes" != "x" ; then
+         NE10_CFLAGS="-I$NE10_includes"
+      elif test "x$NE10_prefix" = "xno" || test "x$NE10_prefix" = "xyes" ; then
+         NE10_CFLAGS=""
+      elif test "x$ogg_prefix" != "x" ; then
+         NE10_CFLAGS="-I$NE10_prefix/include"
+      elif test "x$prefix" != "xNONE"; then
+         NE10_CFLAGS="-I$prefix/include"
+      fi
+
+      AC_MSG_CHECKING(for NE10)
+      save_CFLAGS="$CFLAGS"; CFLAGS="$NE10_CFLAGS"
+      save_LIBS="$LIBS"; LIBS="$NE10_LIBS"
+      AC_LINK_IFELSE(
+         [
+            AC_LANG_PROGRAM(
+               [[#include <NE10_init.h>
+               ]],
+               [[
+                  ne10_fft_cfg_float32_t cfg;
+                  cfg = ne10_fft_alloc_c2c_float32_neon(480);
+               ]]
+            )
+         ],[
+            HAVE_ARM_NE10=1
+            AC_MSG_RESULT([yes])
+         ],[
+            HAVE_ARM_NE10=0
+            AC_MSG_RESULT([no])
+            NE10_CFLAGS=""
+            NE10_LIBS=""
+         ]
+      )
+      CFLAGS="$save_CFLAGS"; LIBS="$save_LIBS"
+      #Now we know if libNE10 is installed or not
+      AS_IF([test x"$HAVE_ARM_NE10" = x"1"],
+         [
+            AC_DEFINE([HAVE_ARM_NE10], 1, [NE10 library is installed on host. Make sure it is on target!])
+            AC_SUBST(HAVE_ARM_NE10)
+            AC_SUBST(NE10_CFLAGS)
+            AC_SUBST(NE10_LIBS)
+         ],[]
+      )
+   ]
+)
+
 AS_IF([test x"$enable_intrinsics" = x"yes"],[
    case $host_cpu in
    arm*)
@@ -391,6 +465,10 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[
             AC_DEFINE([OPUS_ARM_MAY_HAVE_EDSP], 1, [Define if compiler support EDSP Instructions])
             AC_DEFINE([OPUS_ARM_MAY_HAVE_MEDIA], 1, [Define if compiler support MEDIA Instructions])
             AC_DEFINE([OPUS_ARM_MAY_HAVE_NEON], 1, [Define if compiler support NEON instructions])
+
+            OPUS_PATH_NE10()
+            AS_IF([test x"$NE10_LIBS" != "x"],
+                  [enable_intrinsics="$enable_intrinsics NE10"],[])
          ],
          [
             AC_MSG_WARN([Compiler does not support ARM intrinsics])
@@ -516,6 +594,9 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[
 AM_CONDITIONAL([CPU_ARM], [test "$cpu_arm" = "yes"])
 AM_CONDITIONAL([OPUS_ARM_NEON_INTR],
     [test x"$OPUS_ARM_NEON_INTR" = x"1"])
+AM_CONDITIONAL([HAVE_ARM_NE10],
+    [test x"$HAVE_ARM_NE10" = x"1"])
+
 
 AS_IF([test x"$enable_rtcd" = x"yes"],[
     AS_IF([test x"$rtcd_support" != x"no"],[
diff --git a/src/analysis.c b/src/analysis.c
index 2ee8533..0603643 100644
--- a/src/analysis.c
+++ b/src/analysis.c
@@ -262,7 +262,7 @@ static void tonality_analysis(TonalityAnalysisState *tonal, const CELTMode *celt
     remaining = len - (ANALYSIS_BUF_SIZE-tonal->mem_fill);
     downmix(x, &tonal->inmem[240], remaining, offset+ANALYSIS_BUF_SIZE-tonal->mem_fill, c1, c2, C);
     tonal->mem_fill = 240 + remaining;
-    opus_fft(kfft, in, out);
+    opus_fft(kfft, in, out, opus_select_arch());
 #ifndef FIXED_POINT
     /* If there's any NaN on the input, the entire output will be NaN, so we only need to check one value. */
     if (celt_isnan(out[0].r))
diff --git a/src/opus_multistream_encoder.c b/src/opus_multistream_encoder.c
index 6e87337..05744bf 100644
--- a/src/opus_multistream_encoder.c
+++ b/src/opus_multistream_encoder.c
@@ -257,7 +257,8 @@ void surround_analysis(const CELTMode *celt_mode, const void *pcm, opus_val16 *b
       OPUS_COPY(in, mem+c*overlap, overlap);
       (*copy_channel_in)(x, 1, pcm, channels, c, len);
       celt_preemphasis(x, in+overlap, frame_size, 1, upsample, celt_mode->preemph, preemph_mem+c, 0);
-      clt_mdct_forward(&celt_mode->mdct, in, freq, celt_mode->window, overlap, celt_mode->maxLM-LM, 1);
+      clt_mdct_forward(&celt_mode->mdct, in, freq, celt_mode->window,
+                        overlap, celt_mode->maxLM-LM, 1, opus_select_arch());
       if (upsample != 1)
       {
          int bound = len;
-- 
1.7.9.5



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