ref: 43db56225b5716b61c16a3275f65b8d3d3ea5343
parent: 60eb7d88b4eace91395e553cf70fc4578a950353
author: Linfeng Zhang <linfengz@google.com>
date: Thu Sep 1 10:20:57 EDT 2016
Optimize silk_biquad_alt_stride2() for ARM NEON The optimization is bit exact with C function. Change-Id: Ifb8f04b19f2d576e79ce5dcfa7e0fc374d71d6c8 Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
--- a/silk/SigProc_FIX.h
+++ b/silk/SigProc_FIX.h
@@ -48,6 +48,7 @@
#endif
#if (defined(OPUS_ARM_ASM) || defined(OPUS_ARM_MAY_HAVE_NEON_INTR))
+#include "arm/biquad_alt_arm.h"
#include "arm/LPC_inv_pred_gain_arm.h"
#endif
@@ -109,7 +110,7 @@
const opus_int32 len /* I signal length (must be even) */
);
-void silk_biquad_alt_stride2(
+void silk_biquad_alt_stride2_c(
const opus_int16 *in, /* I input signal */
const opus_int32 *B_Q28, /* I MA coefficients [3] */
const opus_int32 *A_Q28, /* I AR coefficients [2] */
@@ -157,6 +158,10 @@
opus_int16 *outH, /* O High band [N/2] */
const opus_int32 N /* I Number of input samples */
);
+
+#if !defined(OVERRIDE_silk_biquad_alt_stride2)
+#define silk_biquad_alt_stride2(in, B_Q28, A_Q28, S, out, len, arch) ((void)(arch), silk_biquad_alt_stride2_c(in, B_Q28, A_Q28, S, out, len))
+#endif
#if !defined(OVERRIDE_silk_LPC_inverse_pred_gain)
#define silk_LPC_inverse_pred_gain(A_Q12, order, arch) ((void)(arch), silk_LPC_inverse_pred_gain_c(A_Q12, order))
--- a/silk/arm/arm_silk_map.c
+++ b/silk/arm/arm_silk_map.c
@@ -37,6 +37,20 @@
# if (defined(OPUS_ARM_MAY_HAVE_NEON_INTR) && \
!defined(OPUS_ARM_PRESUME_NEON_INTR))
+void (*const SILK_BIQUAD_ALT_STRIDE2_IMPL[OPUS_ARCHMASK + 1])(
+ const opus_int16 *in, /* I input signal */
+ const opus_int32 *B_Q28, /* I MA coefficients [3] */
+ const opus_int32 *A_Q28, /* I AR coefficients [2] */
+ opus_int32 *S, /* I/O State vector [4] */
+ opus_int16 *out, /* O output signal */
+ const opus_int32 len /* I signal length (must be even) */
+) = {+ silk_biquad_alt_stride2_c, /* ARMv4 */
+ silk_biquad_alt_stride2_c, /* EDSP */
+ silk_biquad_alt_stride2_c, /* Media */
+ MAY_HAVE_NEON(silk_biquad_alt_stride2), /* Neon */
+};
+
opus_int32 (*const SILK_LPC_INVERSE_PRED_GAIN_IMPL[OPUS_ARCHMASK + 1])( /* O Returns inverse prediction gain in energy domain, Q30 */
const opus_int16 *A_Q12, /* I Prediction coefficients, Q12 [order] */
const opus_int order /* I Prediction order */
--- /dev/null
+++ b/silk/arm/biquad_alt_arm.h
@@ -1,0 +1,68 @@
+/***********************************************************************
+Copyright (c) 2017 Google Inc.
+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_BIQUAD_ALT_ARM_H
+# define SILK_BIQUAD_ALT_ARM_H
+
+# include "celt/arm/armcpu.h"
+
+# if defined(OPUS_ARM_MAY_HAVE_NEON_INTR)
+void silk_biquad_alt_stride2_neon(
+ const opus_int16 *in, /* I input signal */
+ const opus_int32 *B_Q28, /* I MA coefficients [3] */
+ const opus_int32 *A_Q28, /* I AR coefficients [2] */
+ opus_int32 *S, /* I/O State vector [4] */
+ opus_int16 *out, /* O output signal */
+ const opus_int32 len /* I signal length (must be even) */
+);
+
+# if !defined(OPUS_HAVE_RTCD) && defined(OPUS_ARM_PRESUME_NEON)
+# define OVERRIDE_silk_biquad_alt_stride2 (1)
+# define silk_biquad_alt_stride2(in, B_Q28, A_Q28, S, out, len, arch) ((void)(arch), PRESUME_NEON(silk_biquad_alt_stride2)(in, B_Q28, A_Q28, S, out, len))
+# endif
+# endif
+
+# if !defined(OVERRIDE_silk_biquad_alt_stride2)
+/*Is run-time CPU detection enabled on this platform?*/
+# if defined(OPUS_HAVE_RTCD) && (defined(OPUS_ARM_MAY_HAVE_NEON_INTR) && !defined(OPUS_ARM_PRESUME_NEON_INTR))
+extern void (*const SILK_BIQUAD_ALT_STRIDE2_IMPL[OPUS_ARCHMASK+1])(
+ const opus_int16 *in, /* I input signal */
+ const opus_int32 *B_Q28, /* I MA coefficients [3] */
+ const opus_int32 *A_Q28, /* I AR coefficients [2] */
+ opus_int32 *S, /* I/O State vector [4] */
+ opus_int16 *out, /* O output signal */
+ const opus_int32 len /* I signal length (must be even) */
+ );
+# define OVERRIDE_silk_biquad_alt_stride2 (1)
+# define silk_biquad_alt_stride2(in, B_Q28, A_Q28, S, out, len, arch) ((*SILK_BIQUAD_ALT_STRIDE2_IMPL[(arch)&OPUS_ARCHMASK])(in, B_Q28, A_Q28, S, out, len))
+# elif defined(OPUS_ARM_PRESUME_NEON_INTR)
+# define OVERRIDE_silk_biquad_alt_stride2 (1)
+# define silk_biquad_alt_stride2(in, B_Q28, A_Q28, S, out, len, arch) ((void)(arch), silk_biquad_alt_stride2_neon(in, B_Q28, A_Q28, S, out, len))
+# endif
+# endif
+
+#endif /* end SILK_BIQUAD_ALT_ARM_H */
--- /dev/null
+++ b/silk/arm/biquad_alt_neon_intr.c
@@ -1,0 +1,156 @@
+/***********************************************************************
+Copyright (c) 2017 Google Inc.
+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>
+#ifdef OPUS_CHECK_ASM
+# include <string.h>
+# include "stack_alloc.h"
+#endif
+#include "SigProc_FIX.h"
+
+static inline void silk_biquad_alt_stride2_kernel( const int32x4_t A_L_s32x4, const int32x4_t A_U_s32x4, const int32x4_t B_Q28_s32x4, const int32x2_t t_s32x2, const int32x4_t in_s32x4, int32x4_t *S_s32x4, int32x2_t *out32_Q14_s32x2 )
+{+ int32x4_t t_s32x4, out32_Q14_s32x4;
+
+ *out32_Q14_s32x2 = vadd_s32( vget_low_s32( *S_s32x4 ), t_s32x2 ); /* silk_SMLAWB( S{0,1}, B_Q28[ 0 ], in{0,1} ) */+ *S_s32x4 = vcombine_s32( vget_high_s32( *S_s32x4 ), vdup_n_s32( 0 ) ); /* S{0,1} = S{2,3}; S{2,3} = 0; */+ *out32_Q14_s32x2 = vshl_n_s32( *out32_Q14_s32x2, 2 ); /* out32_Q14_{0,1} = silk_LSHIFT( silk_SMLAWB( S{0,1}, B_Q28[ 0 ], in{0,1} ), 2 ); */+ out32_Q14_s32x4 = vcombine_s32( *out32_Q14_s32x2, *out32_Q14_s32x2 ); /* out32_Q14_{0,1,0,1} */+ t_s32x4 = vqdmulhq_s32( out32_Q14_s32x4, A_L_s32x4 ); /* silk_SMULWB( out32_Q14_{0,1,0,1}, A{0,0,1,1}_L_Q28 ) */+ *S_s32x4 = vrsraq_n_s32( *S_s32x4, t_s32x4, 14 ); /* S{0,1} = S{2,3} + silk_RSHIFT_ROUND(); S{2,3} = silk_RSHIFT_ROUND(); */+ t_s32x4 = vqdmulhq_s32( out32_Q14_s32x4, A_U_s32x4 ); /* silk_SMULWB( out32_Q14_{0,1,0,1}, A{0,0,1,1}_U_Q28 ) */+ *S_s32x4 = vaddq_s32( *S_s32x4, t_s32x4 ); /* S0 = silk_SMLAWB( S{0,1,2,3}, out32_Q14_{0,1,0,1}, A{0,0,1,1}_U_Q28 ); */+ t_s32x4 = vqdmulhq_s32( in_s32x4, B_Q28_s32x4 ); /* silk_SMULWB( B_Q28[ {1,1,2,2} ], in{0,1,0,1} ) */+ *S_s32x4 = vaddq_s32( *S_s32x4, t_s32x4 ); /* S0 = silk_SMLAWB( S0, B_Q28[ {1,1,2,2} ], in{0,1,0,1} ); */+}
+
+void silk_biquad_alt_stride2_neon(
+ const opus_int16 *in, /* I input signal */
+ const opus_int32 *B_Q28, /* I MA coefficients [3] */
+ const opus_int32 *A_Q28, /* I AR coefficients [2] */
+ opus_int32 *S, /* I/O State vector [4] */
+ opus_int16 *out, /* O output signal */
+ const opus_int32 len /* I signal length (must be even) */
+)
+{+ /* DIRECT FORM II TRANSPOSED (uses 2 element state vector) */
+ opus_int k = 0;
+ const int32x2_t offset_s32x2 = vdup_n_s32( (1<<14) - 1 );
+ const int32x4_t offset_s32x4 = vcombine_s32( offset_s32x2, offset_s32x2 );
+ int16x4_t in_s16x4 = vdup_n_s16( 0 );
+ int16x4_t out_s16x4;
+ int32x2_t A_Q28_s32x2, A_L_s32x2, A_U_s32x2, B_Q28_s32x2, t_s32x2;
+ int32x4_t A_L_s32x4, A_U_s32x4, B_Q28_s32x4, S_s32x4, out32_Q14_s32x4;
+ int32x2x2_t t0_s32x2x2, t1_s32x2x2, t2_s32x2x2, S_s32x2x2;
+
+#ifdef OPUS_CHECK_ASM
+ opus_int32 S_c[ 4 ];
+ VARDECL( opus_int16, out_c );
+ SAVE_STACK;
+ ALLOC( out_c, 2 * len, opus_int16 );
+
+ silk_memcpy( &S_c, S, sizeof( S_c ) );
+ silk_biquad_alt_stride2_c( in, B_Q28, A_Q28, S_c, out_c, len );
+#endif
+
+ /* Negate A_Q28 values and split in two parts */
+ A_Q28_s32x2 = vld1_s32( A_Q28 );
+ A_Q28_s32x2 = vneg_s32( A_Q28_s32x2 );
+ A_L_s32x2 = vshl_n_s32( A_Q28_s32x2, 18 ); /* ( -A_Q28[] & 0x00003FFF ) << 18 */
+ A_L_s32x2 = vreinterpret_s32_u32( vshr_n_u32( vreinterpret_u32_s32( A_L_s32x2 ), 3 ) ); /* ( -A_Q28[] & 0x00003FFF ) << 15 */
+ A_U_s32x2 = vshr_n_s32( A_Q28_s32x2, 14 ); /* silk_RSHIFT( -A_Q28[], 14 ) */
+ A_U_s32x2 = vshl_n_s32( A_U_s32x2, 16 ); /* silk_RSHIFT( -A_Q28[], 14 ) << 16 (Clip two leading bits to conform to C function.) */
+ A_U_s32x2 = vshr_n_s32( A_U_s32x2, 1 ); /* silk_RSHIFT( -A_Q28[], 14 ) << 15 */
+
+ B_Q28_s32x2 = vld1_s32( B_Q28 );
+ t_s32x2 = vld1_s32( B_Q28 + 1 );
+ t0_s32x2x2 = vzip_s32( A_L_s32x2, A_L_s32x2 );
+ t1_s32x2x2 = vzip_s32( A_U_s32x2, A_U_s32x2 );
+ t2_s32x2x2 = vzip_s32( t_s32x2, t_s32x2 );
+ A_L_s32x4 = vcombine_s32( t0_s32x2x2.val[ 0 ], t0_s32x2x2.val[ 1 ] ); /* A{0,0,1,1}_L_Q28 */+ A_U_s32x4 = vcombine_s32( t1_s32x2x2.val[ 0 ], t1_s32x2x2.val[ 1 ] ); /* A{0,0,1,1}_U_Q28 */+ B_Q28_s32x4 = vcombine_s32( t2_s32x2x2.val[ 0 ], t2_s32x2x2.val[ 1 ] ); /* B_Q28[ {1,1,2,2} ] */+ S_s32x4 = vld1q_s32( S ); /* S0 = S[ 0 ]; S3 = S[ 3 ]; */
+ S_s32x2x2 = vtrn_s32( vget_low_s32( S_s32x4 ), vget_high_s32( S_s32x4 ) ); /* S2 = S[ 1 ]; S1 = S[ 2 ]; */
+ S_s32x4 = vcombine_s32( S_s32x2x2.val[ 0 ], S_s32x2x2.val[ 1 ] );
+
+ for( ; k < len - 1; k += 2 ) {+ int32x4_t in_s32x4[ 2 ], t_s32x4;
+ int32x2_t out32_Q14_s32x2[ 2 ];
+
+ /* S[ 2 * i + 0 ], S[ 2 * i + 1 ], S[ 2 * i + 2 ], S[ 2 * i + 3 ]: Q12 */
+ in_s16x4 = vld1_s16( &in[ 2 * k ] ); /* in{0,1,2,3} = in[ 2 * k + {0,1,2,3} ]; */+ in_s32x4[ 0 ] = vshll_n_s16( in_s16x4, 15 ); /* in{0,1,2,3} << 15 */+ t_s32x4 = vqdmulhq_lane_s32( in_s32x4[ 0 ], B_Q28_s32x2, 0 ); /* silk_SMULWB( B_Q28[ 0 ], in{0,1,2,3} ) */+ in_s32x4[ 1 ] = vcombine_s32( vget_high_s32( in_s32x4[ 0 ] ), vget_high_s32( in_s32x4[ 0 ] ) ); /* in{2,3,2,3} << 15 */+ in_s32x4[ 0 ] = vcombine_s32( vget_low_s32 ( in_s32x4[ 0 ] ), vget_low_s32 ( in_s32x4[ 0 ] ) ); /* in{0,1,0,1} << 15 */+ silk_biquad_alt_stride2_kernel( A_L_s32x4, A_U_s32x4, B_Q28_s32x4, vget_low_s32 ( t_s32x4 ), in_s32x4[ 0 ], &S_s32x4, &out32_Q14_s32x2[ 0 ] );
+ silk_biquad_alt_stride2_kernel( A_L_s32x4, A_U_s32x4, B_Q28_s32x4, vget_high_s32( t_s32x4 ), in_s32x4[ 1 ], &S_s32x4, &out32_Q14_s32x2[ 1 ] );
+
+ /* Scale back to Q0 and saturate */
+ out32_Q14_s32x4 = vcombine_s32( out32_Q14_s32x2[ 0 ], out32_Q14_s32x2[ 1 ] ); /* out32_Q14_{0,1,2,3} */+ out32_Q14_s32x4 = vaddq_s32( out32_Q14_s32x4, offset_s32x4 ); /* out32_Q14_{0,1,2,3} + (1<<14) - 1 */+ out_s16x4 = vqshrn_n_s32( out32_Q14_s32x4, 14 ); /* (opus_int16)silk_SAT16( silk_RSHIFT( out32_Q14_{0,1,2,3} + (1<<14) - 1, 14 ) ) */+ vst1_s16( &out[ 2 * k ], out_s16x4 ); /* out[ 2 * k + {0,1,2,3} ] = (opus_int16)silk_SAT16( silk_RSHIFT( out32_Q14_{0,1,2,3} + (1<<14) - 1, 14 ) ); */+ }
+
+ /* Process leftover. */
+ if( k < len ) {+ int32x4_t in_s32x4;
+ int32x2_t out32_Q14_s32x2;
+
+ /* S[ 2 * i + 0 ], S[ 2 * i + 1 ]: Q12 */
+ in_s16x4 = vld1_lane_s16( &in[ 2 * k + 0 ], in_s16x4, 0 ); /* in{0,1} = in[ 2 * k + {0,1} ]; */+ in_s16x4 = vld1_lane_s16( &in[ 2 * k + 1 ], in_s16x4, 1 ); /* in{0,1} = in[ 2 * k + {0,1} ]; */+ in_s32x4 = vshll_n_s16( in_s16x4, 15 ); /* in{0,1} << 15 */+ t_s32x2 = vqdmulh_lane_s32( vget_low_s32( in_s32x4 ), B_Q28_s32x2, 0 ); /* silk_SMULWB( B_Q28[ 0 ], in{0,1} ) */+ in_s32x4 = vcombine_s32( vget_low_s32( in_s32x4 ), vget_low_s32( in_s32x4 ) ); /* in{0,1,0,1} << 15 */+ silk_biquad_alt_stride2_kernel( A_L_s32x4, A_U_s32x4, B_Q28_s32x4, t_s32x2, in_s32x4, &S_s32x4, &out32_Q14_s32x2 );
+
+ /* Scale back to Q0 and saturate */
+ out32_Q14_s32x2 = vadd_s32( out32_Q14_s32x2, offset_s32x2 ); /* out32_Q14_{0,1} + (1<<14) - 1 */+ out32_Q14_s32x4 = vcombine_s32( out32_Q14_s32x2, out32_Q14_s32x2 ); /* out32_Q14_{0,1,0,1} + (1<<14) - 1 */+ out_s16x4 = vqshrn_n_s32( out32_Q14_s32x4, 14 ); /* (opus_int16)silk_SAT16( silk_RSHIFT( out32_Q14_{0,1,0,1} + (1<<14) - 1, 14 ) ) */+ vst1_lane_s16( &out[ 2 * k + 0 ], out_s16x4, 0 ); /* out[ 2 * k + 0 ] = (opus_int16)silk_SAT16( silk_RSHIFT( out32_Q14_0 + (1<<14) - 1, 14 ) ); */
+ vst1_lane_s16( &out[ 2 * k + 1 ], out_s16x4, 1 ); /* out[ 2 * k + 1 ] = (opus_int16)silk_SAT16( silk_RSHIFT( out32_Q14_1 + (1<<14) - 1, 14 ) ); */
+ }
+
+ vst1q_lane_s32( &S[ 0 ], S_s32x4, 0 ); /* S[ 0 ] = S0; */
+ vst1q_lane_s32( &S[ 1 ], S_s32x4, 2 ); /* S[ 1 ] = S2; */
+ vst1q_lane_s32( &S[ 2 ], S_s32x4, 1 ); /* S[ 2 ] = S1; */
+ vst1q_lane_s32( &S[ 3 ], S_s32x4, 3 ); /* S[ 3 ] = S3; */
+
+#ifdef OPUS_CHECK_ASM
+ silk_assert( !memcmp( S_c, S, sizeof( S_c ) ) );
+ silk_assert( !memcmp( out_c, out, 2 * len * sizeof( opus_int16 ) ) );
+ RESTORE_STACK;
+#endif
+}
--- a/silk/biquad_alt.c
+++ b/silk/biquad_alt.c
@@ -76,7 +76,7 @@
}
}
-void silk_biquad_alt_stride2(
+void silk_biquad_alt_stride2_c(
const opus_int16 *in, /* I input signal */
const opus_int32 *B_Q28, /* I MA coefficients [3] */
const opus_int32 *A_Q28, /* I AR coefficients [2] */
--- a/silk_headers.mk
+++ b/silk_headers.mk
@@ -22,6 +22,7 @@
silk/resampler_structs.h \
silk/SigProc_FIX.h \
silk/x86/SigProc_FIX_sse.h \
+silk/arm/biquad_alt_arm.h \
silk/arm/LPC_inv_pred_gain_arm.h \
silk/arm/macros_armv4.h \
silk/arm/macros_armv5e.h \
--- a/silk_sources.mk
+++ b/silk_sources.mk
@@ -85,6 +85,7 @@
SILK_SOURCES_ARM_NEON_INTR = \
silk/arm/arm_silk_map.c \
+silk/arm/biquad_alt_neon_intr.c \
silk/arm/LPC_inv_pred_gain_neon_intr.c \
silk/arm/NSQ_del_dec_neon_intr.c \
silk/arm/NSQ_neon.c
--- a/src/opus_encoder.c
+++ b/src/opus_encoder.c
@@ -341,10 +341,11 @@
}
#endif
-static void hp_cutoff(const opus_val16 *in, opus_int32 cutoff_Hz, opus_val16 *out, opus_val32 *hp_mem, int len, int channels, opus_int32 Fs)
+static void hp_cutoff(const opus_val16 *in, opus_int32 cutoff_Hz, opus_val16 *out, opus_val32 *hp_mem, int len, int channels, opus_int32 Fs, int arch)
{opus_int32 B_Q28[ 3 ], A_Q28[ 2 ];
opus_int32 Fc_Q19, r_Q28, r_Q22;
+ (void)arch;
silk_assert( cutoff_Hz <= silk_int32_MAX / SILK_FIX_CONST( 1.5 * 3.14159 / 1000, 19 ) );
Fc_Q19 = silk_DIV32_16( silk_SMULBB( SILK_FIX_CONST( 1.5 * 3.14159 / 1000, 19 ), cutoff_Hz ), Fs/1000 );
@@ -367,7 +368,7 @@
if( channels == 1 ) {silk_biquad_alt_stride1( in, B_Q28, A_Q28, hp_mem, out, len );
} else {- silk_biquad_alt_stride2( in, B_Q28, A_Q28, hp_mem, out, len );
+ silk_biquad_alt_stride2( in, B_Q28, A_Q28, hp_mem, out, len, arch );
}
#else
silk_biquad_float( in, B_Q28, A_Q28, hp_mem, out, len, channels );
@@ -1609,7 +1610,7 @@
if (st->application == OPUS_APPLICATION_VOIP)
{- hp_cutoff(pcm, cutoff_Hz, &pcm_buf[total_buffer*st->channels], st->hp_mem, frame_size, st->channels, st->Fs);
+ hp_cutoff(pcm, cutoff_Hz, &pcm_buf[total_buffer*st->channels], st->hp_mem, frame_size, st->channels, st->Fs, st->arch);
} else {dc_reject(pcm, 3, &pcm_buf[total_buffer*st->channels], st->hp_mem, frame_size, st->channels, st->Fs);
}