[opus] [AArch64 neon intrinsics v4 2/5] Add Neon intrinsics for Silk noise shape quantization.

Jonathan Lennox jonathan at vidyo.com
Tue Dec 22 16:21:44 PST 2015


---
 Makefile.am         |  5 +--
 silk/NSQ.c          | 39 ++++++++-------------
 silk/NSQ.h          | 70 +++++++++++++++++++++++++++++++++++++
 silk/arm/NSQ_neon.c | 69 +++++++++++++++++++++++++++++++++++++
 silk/arm/NSQ_neon.h | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 silk/x86/NSQ_sse.c  |  2 +-
 silk/x86/main_sse.h |  3 +-
 silk_headers.mk     |  2 ++
 silk_sources.mk     |  2 ++
 9 files changed, 263 insertions(+), 28 deletions(-)
 create mode 100644 silk/NSQ.h
 create mode 100644 silk/arm/NSQ_neon.c
 create mode 100644 silk/arm/NSQ_neon.h

diff --git a/Makefile.am b/Makefile.am
index d256b45..36762c2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -49,6 +49,7 @@ SILK_SOURCES += $(SILK_SOURCES_ARM)
 
 if HAVE_ARM_NEON_INTR
 CELT_SOURCES += $(CELT_SOURCES_ARM_NEON_INTR)
+SILK_SOURCES += $(SILK_SOURCES_ARM_NEON_INTR)
 endif
 
 if HAVE_ARM_NE10
@@ -295,7 +296,7 @@ $(SSE4_1_OBJ) $(OPT_UNIT_TEST_OBJ): CFLAGS += $(OPUS_X86_SSE4_1_CFLAGS)
 endif
 
 if HAVE_ARM_NEON_INTR
-CELT_ARM_NEON_INTR_OBJ = $(CELT_SOURCES_ARM_NEON_INTR:.c=.lo)
-$(CELT_ARM_NEON_INTR_OBJ) $(OPT_UNIT_TEST_OBJ): CFLAGS += \
+ARM_NEON_INTR_OBJ = $(CELT_SOURCES_ARM_NEON_INTR:.c=.lo) $(SILK_SOURCES_ARM_NEON_INTR:.c=.lo)
+$(ARM_NEON_INTR_OBJ) $(OPT_UNIT_TEST_OBJ): CFLAGS += \
  $(OPUS_ARM_NEON_INTR_CFLAGS)  $(NE10_CFLAGS)
 endif
diff --git a/silk/NSQ.c b/silk/NSQ.c
index a065884..eff0224 100644
--- a/silk/NSQ.c
+++ b/silk/NSQ.c
@@ -31,6 +31,8 @@ POSSIBILITY OF SUCH DAMAGE.
 
 #include "main.h"
 #include "stack_alloc.h"
+#include "NSQ.h"
+
 
 static OPUS_INLINE void silk_nsq_scale_states(
     const silk_encoder_state *psEncC,           /* I    Encoder State                   */
@@ -66,7 +68,8 @@ static OPUS_INLINE void silk_noise_shape_quantizer(
     opus_int            offset_Q10,             /* I                                    */
     opus_int            length,                 /* I    Input length                    */
     opus_int            shapingLPCOrder,        /* I    Noise shaping AR filter order   */
-    opus_int            predictLPCOrder         /* I    Prediction filter order         */
+    opus_int            predictLPCOrder,        /* I    Prediction filter order         */
+    int                 arch                    /* I    Architecture                    */
 );
 #endif
 
@@ -155,7 +158,7 @@ void silk_NSQ_c
 
         silk_noise_shape_quantizer( NSQ, psIndices->signalType, x_sc_Q10, pulses, pxq, sLTP_Q15, A_Q12, B_Q14,
             AR_shp_Q13, lag, HarmShapeFIRPacked_Q14, Tilt_Q14[ k ], LF_shp_Q14[ k ], Gains_Q16[ k ], Lambda_Q10,
-            offset_Q10, psEncC->subfr_length, psEncC->shapingLPCOrder, psEncC->predictLPCOrder );
+            offset_Q10, psEncC->subfr_length, psEncC->shapingLPCOrder, psEncC->predictLPCOrder, psEncC->arch );
 
         x_Q3   += psEncC->subfr_length;
         pulses += psEncC->subfr_length;
@@ -198,7 +201,8 @@ void silk_noise_shape_quantizer(
     opus_int            offset_Q10,             /* I                                    */
     opus_int            length,                 /* I    Input length                    */
     opus_int            shapingLPCOrder,        /* I    Noise shaping AR filter order   */
-    opus_int            predictLPCOrder         /* I    Prediction filter order         */
+    opus_int            predictLPCOrder,        /* I    Prediction filter order         */
+    int                 arch                    /* I    Architecture                    */
 )
 {
     opus_int     i, j;
@@ -207,6 +211,9 @@ void silk_noise_shape_quantizer(
     opus_int32   exc_Q14, LPC_exc_Q14, xq_Q14, Gain_Q10;
     opus_int32   tmp1, tmp2, sLF_AR_shp_Q14;
     opus_int32   *psLPC_Q14, *shp_lag_ptr, *pred_lag_ptr;
+#ifdef silk_short_prediction_create_arch_coef
+    opus_int32   a_Q12_arch[MAX_LPC_ORDER];
+#endif
 
     shp_lag_ptr  = &NSQ->sLTP_shp_Q14[ NSQ->sLTP_shp_buf_idx - lag + HARM_SHAPE_FIR_TAPS / 2 ];
     pred_lag_ptr = &sLTP_Q15[ NSQ->sLTP_buf_idx - lag + LTP_ORDER / 2 ];
@@ -215,32 +222,16 @@ void silk_noise_shape_quantizer(
     /* Set up short term AR state */
     psLPC_Q14 = &NSQ->sLPC_Q14[ NSQ_LPC_BUF_LENGTH - 1 ];
 
+#ifdef silk_short_prediction_create_arch_coef
+    silk_short_prediction_create_arch_coef(a_Q12_arch, a_Q12, predictLPCOrder);
+#endif
+
     for( i = 0; i < length; i++ ) {
         /* Generate dither */
         NSQ->rand_seed = silk_RAND( NSQ->rand_seed );
 
         /* Short-term prediction */
-        silk_assert( predictLPCOrder == 10 || predictLPCOrder == 16 );
-        /* Avoids introducing a bias because silk_SMLAWB() always rounds to -inf */
-        LPC_pred_Q10 = silk_RSHIFT( predictLPCOrder, 1 );
-        LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[  0 ], a_Q12[ 0 ] );
-        LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -1 ], a_Q12[ 1 ] );
-        LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -2 ], a_Q12[ 2 ] );
-        LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -3 ], a_Q12[ 3 ] );
-        LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -4 ], a_Q12[ 4 ] );
-        LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -5 ], a_Q12[ 5 ] );
-        LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -6 ], a_Q12[ 6 ] );
-        LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -7 ], a_Q12[ 7 ] );
-        LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -8 ], a_Q12[ 8 ] );
-        LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -9 ], a_Q12[ 9 ] );
-        if( predictLPCOrder == 16 ) {
-            LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -10 ], a_Q12[ 10 ] );
-            LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -11 ], a_Q12[ 11 ] );
-            LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -12 ], a_Q12[ 12 ] );
-            LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -13 ], a_Q12[ 13 ] );
-            LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -14 ], a_Q12[ 14 ] );
-            LPC_pred_Q10 = silk_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -15 ], a_Q12[ 15 ] );
-        }
+        LPC_pred_Q10 = silk_noise_shape_quantizer_short_prediction(psLPC_Q14, a_Q12, a_Q12_arch, predictLPCOrder, arch);
 
         /* Long-term prediction */
         if( signalType == TYPE_VOICED ) {
diff --git a/silk/NSQ.h b/silk/NSQ.h
new file mode 100644
index 0000000..c71e493
--- /dev/null
+++ b/silk/NSQ.h
@@ -0,0 +1,70 @@
+/***********************************************************************
+Copyright (c) 2014 Vidyo.
+Copyright (c) 2006-2011, Skype Limited. 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.
+- Neither the name of Internet Society, IETF or IETF Trust, nor the
+names of specific contributors, may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+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 SILK_NSQ_H
+#define SILK_NSQ_H
+
+#undef silk_short_prediction_create_arch_coef
+
+static OPUS_INLINE opus_int32 silk_noise_shape_quantizer_short_prediction_c(const opus_int32 *buf32, const opus_int16 *coef16, opus_int order)
+{
+    opus_int32 out;
+    silk_assert( order == 10 || order == 16 );
+
+    /* Avoids introducing a bias because silk_SMLAWB() always rounds to -inf */
+    out = silk_RSHIFT( order, 1 );
+    out = silk_SMLAWB( out, buf32[  0 ], coef16[ 0 ] );
+    out = silk_SMLAWB( out, buf32[ -1 ], coef16[ 1 ] );
+    out = silk_SMLAWB( out, buf32[ -2 ], coef16[ 2 ] );
+    out = silk_SMLAWB( out, buf32[ -3 ], coef16[ 3 ] );
+    out = silk_SMLAWB( out, buf32[ -4 ], coef16[ 4 ] );
+    out = silk_SMLAWB( out, buf32[ -5 ], coef16[ 5 ] );
+    out = silk_SMLAWB( out, buf32[ -6 ], coef16[ 6 ] );
+    out = silk_SMLAWB( out, buf32[ -7 ], coef16[ 7 ] );
+    out = silk_SMLAWB( out, buf32[ -8 ], coef16[ 8 ] );
+    out = silk_SMLAWB( out, buf32[ -9 ], coef16[ 9 ] );
+
+    if( order == 16 )
+    {
+        out = silk_SMLAWB( out, buf32[ -10 ], coef16[ 10 ] );
+        out = silk_SMLAWB( out, buf32[ -11 ], coef16[ 11 ] );
+        out = silk_SMLAWB( out, buf32[ -12 ], coef16[ 12 ] );
+        out = silk_SMLAWB( out, buf32[ -13 ], coef16[ 13 ] );
+        out = silk_SMLAWB( out, buf32[ -14 ], coef16[ 14 ] );
+        out = silk_SMLAWB( out, buf32[ -15 ], coef16[ 15 ] );
+    }
+    return out;
+}
+
+#define silk_noise_shape_quantizer_short_prediction(in, coef, coefRev, order, arch)  ((void)arch,silk_noise_shape_quantizer_short_prediction_c(in, coef, order))
+
+
+#if defined(OPUS_ARM_MAY_HAVE_NEON_INTR)
+#include "arm/NSQ_neon.h"
+#endif
+
+#endif /* SILK_NSQ_H */
diff --git a/silk/arm/NSQ_neon.c b/silk/arm/NSQ_neon.c
new file mode 100644
index 0000000..4344b37
--- /dev/null
+++ b/silk/arm/NSQ_neon.c
@@ -0,0 +1,69 @@
+/***********************************************************************
+Copyright (C) 2014 Vidyo
+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.
+- Neither the name of Internet Society, IETF or IETF Trust, nor the
+names of specific contributors, may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+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 <arm_neon.h>
+#include "main.h"
+#include "stack_alloc.h"
+#include "NSQ.h"
+#include "celt/cpu_support.h"
+#include "celt/arm/armcpu.h"
+
+opus_int32 silk_noise_shape_quantizer_short_prediction_neon(const opus_int32 *buf32, const opus_int32 *coef32, opus_int order)
+{
+    int32x4_t coef0 = vld1q_s32(coef32);
+    int32x4_t coef1 = vld1q_s32(coef32 + 4);
+    int32x4_t coef2 = vld1q_s32(coef32 + 8);
+    int32x4_t coef3 = vld1q_s32(coef32 + 12);
+
+    int32x4_t a0 = vld1q_s32(buf32 - 15);
+    int32x4_t a1 = vld1q_s32(buf32 - 11);
+    int32x4_t a2 = vld1q_s32(buf32 - 7);
+    int32x4_t a3 = vld1q_s32(buf32 - 3);
+
+    int32x4_t b0 = vqdmulhq_s32(coef0, a0);
+    int32x4_t b1 = vqdmulhq_s32(coef1, a1);
+    int32x4_t b2 = vqdmulhq_s32(coef2, a2);
+    int32x4_t b3 = vqdmulhq_s32(coef3, a3);
+
+    int32x4_t c0 = vaddq_s32(b0, b1);
+    int32x4_t c1 = vaddq_s32(b2, b3);
+
+    int32x4_t d = vaddq_s32(c0, c1);
+
+    int64x2_t e = vpaddlq_s32(d);
+
+    int64x1_t f = vadd_s64(vget_low_s64(e), vget_high_s64(e));
+
+    opus_int32 out = vget_lane_s32(vreinterpret_s32_s64(f), 0);
+
+    out += silk_RSHIFT( order, 1 );
+
+    return out;
+}
diff --git a/silk/arm/NSQ_neon.h b/silk/arm/NSQ_neon.h
new file mode 100644
index 0000000..56f9ead
--- /dev/null
+++ b/silk/arm/NSQ_neon.h
@@ -0,0 +1,99 @@
+/***********************************************************************
+Copyright (C) 2014 Vidyo
+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.
+- Neither the name of Internet Society, IETF or IETF Trust, nor the
+names of specific contributors, may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+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 SILK_NSQ_NEON_H
+#define SILK_NSQ_NEON_H
+
+#include "config.h"
+
+#undef silk_short_prediction_create_arch_coef
+/* For vectorized calc, reverse a_Q12 coefs, convert to 32-bit, and shift for vqdmulhq_s32. */
+static OPUS_INLINE void silk_short_prediction_create_arch_coef_neon(opus_int32 *out, const opus_int16 *in, opus_int order)
+{
+    out[15] = in[0] << 15;
+    out[14] = in[1] << 15;
+    out[13] = in[2] << 15;
+    out[12] = in[3] << 15;
+    out[11] = in[4] << 15;
+    out[10] = in[5] << 15;
+    out[9]  = in[6] << 15;
+    out[8]  = in[7] << 15;
+    out[7]  = in[8] << 15;
+    out[6]  = in[9] << 15;
+
+    if (order == 16)
+    {
+        out[5] = in[10] << 15;
+        out[4] = in[11] << 15;
+        out[3] = in[12] << 15;
+        out[2] = in[13] << 15;
+        out[1] = in[14] << 15;
+        out[0] = in[15] << 15;
+    }
+    else
+    {
+        out[5] = 0;
+        out[4] = 0;
+        out[3] = 0;
+        out[2] = 0;
+        out[1] = 0;
+        out[0] = 0;
+    }
+}
+
+#if OPUS_ARM_PRESUME_NEON_INTR
+
+#define silk_short_prediction_create_arch_coef(out, in, order) \
+    (silk_short_prediction_create_arch_coef_neon(out, in, order))
+
+#elif OPUS_HAVE_RTCD && OPUS_ARM_MAY_HAVE_NEON_INTR
+
+#define silk_short_prediction_create_arch_coef(out, in, order) \
+    do { if (arch == OPUS_ARCH_ARM_NEON) { silk_short_prediction_create_arch_coef_neon(out, in, order); } } while (0)
+
+#endif
+
+opus_int32 silk_noise_shape_quantizer_short_prediction_neon(const opus_int32 *buf32, const opus_int32 *coef32, opus_int order);
+
+#if OPUS_ARM_PRESUME_NEON_INTR
+#undef silk_noise_shape_quantizer_short_prediction
+#define silk_noise_shape_quantizer_short_prediction(in, coef, coefRev, order, arch) \
+    ((void)arch,silk_noise_shape_quantizer_short_prediction_neon(in, coefRev, order))
+
+#elif OPUS_HAVE_RTCD && OPUS_ARM_MAY_HAVE_NEON_INTR
+
+/* silk_noise_shape_quantizer_short_prediction implementations take different parameters based on arch
+   (coef vs. coefRev) so can't use the usual IMPL table implementation */
+#undef silk_noise_shape_quantizer_short_prediction
+#define silk_noise_shape_quantizer_short_prediction(in, coef, coefRev, order, arch)  \
+    (arch == OPUS_ARCH_ARM_NEON ? \
+        silk_noise_shape_quantizer_short_prediction_neon(in, coefRev, order) : \
+        silk_noise_shape_quantizer_short_prediction_c(in, coef, order))
+
+
+#endif
+
+#endif /* SILK_NSQ_NEON_H */
diff --git a/silk/x86/NSQ_sse.c b/silk/x86/NSQ_sse.c
index 72f34fd..bb3c5f1 100644
--- a/silk/x86/NSQ_sse.c
+++ b/silk/x86/NSQ_sse.c
@@ -221,7 +221,7 @@ void silk_NSQ_sse4_1(
         {
             silk_noise_shape_quantizer( NSQ, psIndices->signalType, x_sc_Q10, pulses, pxq, sLTP_Q15, A_Q12, B_Q14,
                 AR_shp_Q13, lag, HarmShapeFIRPacked_Q14, Tilt_Q14[ k ], LF_shp_Q14[ k ], Gains_Q16[ k ], Lambda_Q10,
-                offset_Q10, psEncC->subfr_length, psEncC->shapingLPCOrder, psEncC->predictLPCOrder );
+                offset_Q10, psEncC->subfr_length, psEncC->shapingLPCOrder, psEncC->predictLPCOrder, psEncC->arch );
         }
 
         x_Q3   += psEncC->subfr_length;
diff --git a/silk/x86/main_sse.h b/silk/x86/main_sse.h
index afd5ec2..d8d6131 100644
--- a/silk/x86/main_sse.h
+++ b/silk/x86/main_sse.h
@@ -207,7 +207,8 @@ void silk_noise_shape_quantizer(
     opus_int            offset_Q10,             /* I                                    */
     opus_int            length,                 /* I    Input length                    */
     opus_int            shapingLPCOrder,        /* I    Noise shaping AR filter order   */
-    opus_int            predictLPCOrder         /* I    Prediction filter order         */
+    opus_int            predictLPCOrder,        /* I    Prediction filter order         */
+    int                 arch                    /* I    Architecture                    */
 );
 
 /**************************/
diff --git a/silk_headers.mk b/silk_headers.mk
index 679ff8f..c74ab81 100644
--- a/silk_headers.mk
+++ b/silk_headers.mk
@@ -15,6 +15,7 @@ silk/Inlines.h \
 silk/MacroCount.h \
 silk/MacroDebug.h \
 silk/macros.h \
+silk/NSQ.h \
 silk/pitch_est_defines.h \
 silk/resampler_private.h \
 silk/resampler_rom.h \
@@ -25,6 +26,7 @@ silk/arm/macros_armv4.h \
 silk/arm/macros_armv5e.h \
 silk/arm/SigProc_FIX_armv4.h \
 silk/arm/SigProc_FIX_armv5e.h \
+silk/arm/NSQ_neon.h \
 silk/fixed/main_FIX.h \
 silk/fixed/structs_FIX.h \
 silk/fixed/mips/noise_shape_analysis_FIX_mipsr1.h \
diff --git a/silk_sources.mk b/silk_sources.mk
index 7cfb7d3..79ac6f0 100644
--- a/silk_sources.mk
+++ b/silk_sources.mk
@@ -82,6 +82,8 @@ silk/x86/x86_silk_map.c \
 silk/x86/VAD_sse.c \
 silk/x86/VQ_WMat_EC_sse.c
 
+SILK_SOURCES_ARM_NEON_INTR = silk/arm/NSQ_neon.c
+
 SILK_SOURCES_FIXED = \
 silk/fixed/LTP_analysis_filter_FIX.c \
 silk/fixed/LTP_scale_ctrl_FIX.c \
-- 
2.5.4 (Apple Git-61)



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