ref: 260679b16ef5aacdfe494de9cd2ef4327fed23ca
parent: 51644d58847510189688dea64903c9e1e965fc27
author: Siarhei Volkau <lis8215@gmail.com>
date: Sat Aug 23 19:40:46 EDT 2025
MIPS: tune NSQ for MIPS I observed that overridden silk_noise_shape_quantizer_del_dec is refactored in C version, and most performance critical parts moved to separate functions silk_noise_shape_quantizer_short_prediction and silk_NSQ_noise_shape_feedback_loop. So let's drop current mips implementation and override only the critical parts mentioned above. Signed-off-by: Siarhei Volkau <lis8215@gmail.com> Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
--- a/silk/NSQ.h
+++ b/silk/NSQ.h
@@ -98,4 +98,8 @@
#include "arm/NSQ_neon.h"
#endif
+#if defined(__mips)
+#include "mips/NSQ_mips.h"
+#endif
+
#endif /* SILK_NSQ_H */
--- a/silk/NSQ_del_dec.c
+++ b/silk/NSQ_del_dec.c
@@ -61,9 +61,6 @@
typedef NSQ_sample_struct NSQ_sample_pair[ 2 ];
-#if defined(FIXED_POINT) && defined(__mips_dsp) && __mips == 32
-#include "mips/NSQ_del_dec_mipsr1.h"
-#endif
static OPUS_INLINE void silk_nsq_del_dec_scale_states(
const silk_encoder_state *psEncC, /* I Encoder State */
silk_nsq_state *NSQ, /* I/O NSQ state */
--- a/silk/mips/NSQ_del_dec_mipsr1.h
+++ /dev/null
@@ -1,410 +1,0 @@
-/***********************************************************************
-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 NSQ_DEL_DEC_MIPSR1_H__
-#define NSQ_DEL_DEC_MIPSR1_H__
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "main.h"
-#include "stack_alloc.h"
-
-#define OVERRIDE_silk_noise_shape_quantizer_del_dec
-static inline void silk_noise_shape_quantizer_del_dec(
- silk_nsq_state *NSQ, /* I/O NSQ state */
- NSQ_del_dec_struct psDelDec[], /* I/O Delayed decision states */
- opus_int signalType, /* I Signal type */
- const opus_int32 x_Q10[], /* I */
- opus_int8 pulses[], /* O */
- opus_int16 xq[], /* O */
- opus_int32 sLTP_Q15[], /* I/O LTP filter state */
- opus_int32 delayedGain_Q10[], /* I/O Gain delay buffer */
- const opus_int16 a_Q12[], /* I Short term prediction coefs */
- const opus_int16 b_Q14[], /* I Long term prediction coefs */
- const opus_int16 AR_shp_Q13[], /* I Noise shaping coefs */
- opus_int lag, /* I Pitch lag */
- opus_int32 HarmShapeFIRPacked_Q14, /* I */
- opus_int Tilt_Q14, /* I Spectral tilt */
- opus_int32 LF_shp_Q14, /* I */
- opus_int32 Gain_Q16, /* I */
- opus_int Lambda_Q10, /* I */
- opus_int offset_Q10, /* I */
- opus_int length, /* I Input length */
- opus_int subfr, /* I Subframe number */
- opus_int shapingLPCOrder, /* I Shaping LPC filter order */
- opus_int predictLPCOrder, /* I Prediction filter order */
- opus_int warping_Q16, /* I */
- opus_int nStatesDelayedDecision, /* I Number of states in decision tree */
- opus_int *smpl_buf_idx, /* I/O Index to newest samples in buffers */
- opus_int decisionDelay, /* I */
- int arch /* I */
-)
-{- opus_int i, j, k, Winner_ind, RDmin_ind, RDmax_ind, last_smple_idx;
- opus_int32 Winner_rand_state;
- opus_int32 LTP_pred_Q14, LPC_pred_Q14, n_AR_Q14, n_LTP_Q14;
- opus_int32 n_LF_Q14, r_Q10, rr_Q10, rd1_Q10, rd2_Q10, RDmin_Q10, RDmax_Q10;
- opus_int32 q1_Q0, q1_Q10, q2_Q10, exc_Q14, LPC_exc_Q14, xq_Q14, Gain_Q10;
- opus_int32 tmp1, tmp2, sLF_AR_shp_Q14;
- opus_int32 *pred_lag_ptr, *shp_lag_ptr, *psLPC_Q14;
- NSQ_sample_struct psSampleState[ MAX_DEL_DEC_STATES ][ 2 ];
- NSQ_del_dec_struct *psDD;
- NSQ_sample_struct *psSS;
- opus_int16 b_Q14_0, b_Q14_1, b_Q14_2, b_Q14_3, b_Q14_4;
- opus_int16 a_Q12_0, a_Q12_1, a_Q12_2, a_Q12_3, a_Q12_4, a_Q12_5, a_Q12_6;
- opus_int16 a_Q12_7, a_Q12_8, a_Q12_9, a_Q12_10, a_Q12_11, a_Q12_12, a_Q12_13;
- opus_int16 a_Q12_14, a_Q12_15;
-
- opus_int32 cur, prev, next;
-
- /*Unused.*/
- (void)arch;
-
- //Initialize b_Q14 variables
- b_Q14_0 = b_Q14[ 0 ];
- b_Q14_1 = b_Q14[ 1 ];
- b_Q14_2 = b_Q14[ 2 ];
- b_Q14_3 = b_Q14[ 3 ];
- b_Q14_4 = b_Q14[ 4 ];
-
- //Initialize a_Q12 variables
- a_Q12_0 = a_Q12[0];
- a_Q12_1 = a_Q12[1];
- a_Q12_2 = a_Q12[2];
- a_Q12_3 = a_Q12[3];
- a_Q12_4 = a_Q12[4];
- a_Q12_5 = a_Q12[5];
- a_Q12_6 = a_Q12[6];
- a_Q12_7 = a_Q12[7];
- a_Q12_8 = a_Q12[8];
- a_Q12_9 = a_Q12[9];
- a_Q12_10 = a_Q12[10];
- a_Q12_11 = a_Q12[11];
- a_Q12_12 = a_Q12[12];
- a_Q12_13 = a_Q12[13];
- a_Q12_14 = a_Q12[14];
- a_Q12_15 = a_Q12[15];
-
- long long temp64;
-
- silk_assert( nStatesDelayedDecision > 0 );
-
- 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 ];
- Gain_Q10 = silk_RSHIFT( Gain_Q16, 6 );
-
- for( i = 0; i < length; i++ ) {- /* Perform common calculations used in all states */
-
- /* Long-term prediction */
- if( signalType == TYPE_VOICED ) {- /* Unrolled loop */
- /* Avoids introducing a bias because silk_SMLAWB() always rounds to -inf */
- temp64 = __builtin_mips_mult(pred_lag_ptr[ 0 ], b_Q14_0 );
- temp64 = __builtin_mips_madd( temp64, pred_lag_ptr[ -1 ], b_Q14_1 );
- temp64 = __builtin_mips_madd( temp64, pred_lag_ptr[ -2 ], b_Q14_2 );
- temp64 = __builtin_mips_madd( temp64, pred_lag_ptr[ -3 ], b_Q14_3 );
- temp64 = __builtin_mips_madd( temp64, pred_lag_ptr[ -4 ], b_Q14_4 );
- temp64 += 32768;
- LTP_pred_Q14 = __builtin_mips_extr_w(temp64, 16);
- LTP_pred_Q14 = silk_LSHIFT( LTP_pred_Q14, 1 ); /* Q13 -> Q14 */
- pred_lag_ptr++;
- } else {- LTP_pred_Q14 = 0;
- }
-
- /* Long-term shaping */
- if( lag > 0 ) {- /* Symmetric, packed FIR coefficients */
- n_LTP_Q14 = silk_SMULWB( silk_ADD32( shp_lag_ptr[ 0 ], shp_lag_ptr[ -2 ] ), HarmShapeFIRPacked_Q14 );
- n_LTP_Q14 = silk_SMLAWT( n_LTP_Q14, shp_lag_ptr[ -1 ], HarmShapeFIRPacked_Q14 );
- n_LTP_Q14 = silk_SUB_LSHIFT32( LTP_pred_Q14, n_LTP_Q14, 2 ); /* Q12 -> Q14 */
- shp_lag_ptr++;
- } else {- n_LTP_Q14 = 0;
- }
-
- for( k = 0; k < nStatesDelayedDecision; k++ ) {- /* Delayed decision state */
- psDD = &psDelDec[ k ];
-
- /* Sample state */
- psSS = psSampleState[ k ];
-
- /* Generate dither */
- psDD->Seed = silk_RAND( psDD->Seed );
-
- /* Pointer used in short term prediction and shaping */
- psLPC_Q14 = &psDD->sLPC_Q14[ NSQ_LPC_BUF_LENGTH - 1 + i ];
- /* Short-term prediction */
- silk_assert( predictLPCOrder == 10 || predictLPCOrder == 16 );
- temp64 = __builtin_mips_mult(psLPC_Q14[ 0 ], a_Q12_0 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -1 ], a_Q12_1 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -2 ], a_Q12_2 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -3 ], a_Q12_3 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -4 ], a_Q12_4 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -5 ], a_Q12_5 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -6 ], a_Q12_6 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -7 ], a_Q12_7 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -8 ], a_Q12_8 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -9 ], a_Q12_9 );
- if( predictLPCOrder == 16 ) {- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -10 ], a_Q12_10 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -11 ], a_Q12_11 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -12 ], a_Q12_12 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -13 ], a_Q12_13 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -14 ], a_Q12_14 );
- temp64 = __builtin_mips_madd( temp64, psLPC_Q14[ -15 ], a_Q12_15 );
- }
- temp64 += 32768;
- LPC_pred_Q14 = __builtin_mips_extr_w(temp64, 16);
-
- LPC_pred_Q14 = silk_LSHIFT( LPC_pred_Q14, 4 ); /* Q10 -> Q14 */
-
- /* Noise shape feedback */
- silk_assert( ( shapingLPCOrder & 1 ) == 0 ); /* check that order is even */
- /* Output of lowpass section */
- tmp2 = silk_SMLAWB( psLPC_Q14[ 0 ], psDD->sAR2_Q14[ 0 ], warping_Q16 );
- /* Output of allpass section */
- tmp1 = silk_SMLAWB( psDD->sAR2_Q14[ 0 ], psDD->sAR2_Q14[ 1 ] - tmp2, warping_Q16 );
- psDD->sAR2_Q14[ 0 ] = tmp2;
-
- temp64 = __builtin_mips_mult(tmp2, AR_shp_Q13[ 0 ] );
-
- prev = psDD->sAR2_Q14[ 1 ];
-
- /* Loop over allpass sections */
- for( j = 2; j < shapingLPCOrder; j += 2 ) {- cur = psDD->sAR2_Q14[ j ];
- next = psDD->sAR2_Q14[ j+1 ];
- /* Output of allpass section */
- tmp2 = silk_SMLAWB( prev, cur - tmp1, warping_Q16 );
- psDD->sAR2_Q14[ j - 1 ] = tmp1;
- temp64 = __builtin_mips_madd( temp64, tmp1, AR_shp_Q13[ j - 1 ] );
- temp64 = __builtin_mips_madd( temp64, tmp2, AR_shp_Q13[ j ] );
- /* Output of allpass section */
- tmp1 = silk_SMLAWB( cur, next - tmp2, warping_Q16 );
- psDD->sAR2_Q14[ j + 0 ] = tmp2;
- prev = next;
- }
- psDD->sAR2_Q14[ shapingLPCOrder - 1 ] = tmp1;
- temp64 = __builtin_mips_madd( temp64, tmp1, AR_shp_Q13[ shapingLPCOrder - 1 ] );
- temp64 += 32768;
- n_AR_Q14 = __builtin_mips_extr_w(temp64, 16);
- n_AR_Q14 = silk_LSHIFT( n_AR_Q14, 1 ); /* Q11 -> Q12 */
- n_AR_Q14 = silk_SMLAWB( n_AR_Q14, psDD->LF_AR_Q14, Tilt_Q14 ); /* Q12 */
- n_AR_Q14 = silk_LSHIFT( n_AR_Q14, 2 ); /* Q12 -> Q14 */
-
- n_LF_Q14 = silk_SMULWB( psDD->Shape_Q14[ *smpl_buf_idx ], LF_shp_Q14 ); /* Q12 */
- n_LF_Q14 = silk_SMLAWT( n_LF_Q14, psDD->LF_AR_Q14, LF_shp_Q14 ); /* Q12 */
- n_LF_Q14 = silk_LSHIFT( n_LF_Q14, 2 ); /* Q12 -> Q14 */
-
- /* Input minus prediction plus noise feedback */
- /* r = x[ i ] - LTP_pred - LPC_pred + n_AR + n_Tilt + n_LF + n_LTP */
- tmp1 = silk_ADD32( n_AR_Q14, n_LF_Q14 ); /* Q14 */
- tmp2 = silk_ADD32( n_LTP_Q14, LPC_pred_Q14 ); /* Q13 */
- tmp1 = silk_SUB32( tmp2, tmp1 ); /* Q13 */
- tmp1 = silk_RSHIFT_ROUND( tmp1, 4 ); /* Q10 */
-
- r_Q10 = silk_SUB32( x_Q10[ i ], tmp1 ); /* residual error Q10 */
-
- /* Flip sign depending on dither */
- if ( psDD->Seed < 0 ) {- r_Q10 = -r_Q10;
- }
- r_Q10 = silk_LIMIT_32( r_Q10, -(31 << 10), 30 << 10 );
-
- /* Find two quantization level candidates and measure their rate-distortion */
- q1_Q10 = silk_SUB32( r_Q10, offset_Q10 );
- q1_Q0 = silk_RSHIFT( q1_Q10, 10 );
- if( q1_Q0 > 0 ) {- q1_Q10 = silk_SUB32( silk_LSHIFT( q1_Q0, 10 ), QUANT_LEVEL_ADJUST_Q10 );
- q1_Q10 = silk_ADD32( q1_Q10, offset_Q10 );
- q2_Q10 = silk_ADD32( q1_Q10, 1024 );
- rd1_Q10 = silk_SMULBB( q1_Q10, Lambda_Q10 );
- rd2_Q10 = silk_SMULBB( q2_Q10, Lambda_Q10 );
- } else if( q1_Q0 == 0 ) {- q1_Q10 = offset_Q10;
- q2_Q10 = silk_ADD32( q1_Q10, 1024 - QUANT_LEVEL_ADJUST_Q10 );
- rd1_Q10 = silk_SMULBB( q1_Q10, Lambda_Q10 );
- rd2_Q10 = silk_SMULBB( q2_Q10, Lambda_Q10 );
- } else if( q1_Q0 == -1 ) {- q2_Q10 = offset_Q10;
- q1_Q10 = silk_SUB32( q2_Q10, 1024 - QUANT_LEVEL_ADJUST_Q10 );
- rd1_Q10 = silk_SMULBB( -q1_Q10, Lambda_Q10 );
- rd2_Q10 = silk_SMULBB( q2_Q10, Lambda_Q10 );
- } else { /* q1_Q0 < -1 */- q1_Q10 = silk_ADD32( silk_LSHIFT( q1_Q0, 10 ), QUANT_LEVEL_ADJUST_Q10 );
- q1_Q10 = silk_ADD32( q1_Q10, offset_Q10 );
- q2_Q10 = silk_ADD32( q1_Q10, 1024 );
- rd1_Q10 = silk_SMULBB( -q1_Q10, Lambda_Q10 );
- rd2_Q10 = silk_SMULBB( -q2_Q10, Lambda_Q10 );
- }
- rr_Q10 = silk_SUB32( r_Q10, q1_Q10 );
- rd1_Q10 = silk_RSHIFT( silk_SMLABB( rd1_Q10, rr_Q10, rr_Q10 ), 10 );
- rr_Q10 = silk_SUB32( r_Q10, q2_Q10 );
- rd2_Q10 = silk_RSHIFT( silk_SMLABB( rd2_Q10, rr_Q10, rr_Q10 ), 10 );
-
- if( rd1_Q10 < rd2_Q10 ) {- psSS[ 0 ].RD_Q10 = silk_ADD32( psDD->RD_Q10, rd1_Q10 );
- psSS[ 1 ].RD_Q10 = silk_ADD32( psDD->RD_Q10, rd2_Q10 );
- psSS[ 0 ].Q_Q10 = q1_Q10;
- psSS[ 1 ].Q_Q10 = q2_Q10;
- } else {- psSS[ 0 ].RD_Q10 = silk_ADD32( psDD->RD_Q10, rd2_Q10 );
- psSS[ 1 ].RD_Q10 = silk_ADD32( psDD->RD_Q10, rd1_Q10 );
- psSS[ 0 ].Q_Q10 = q2_Q10;
- psSS[ 1 ].Q_Q10 = q1_Q10;
- }
-
- /* Update states for best quantization */
-
- /* Quantized excitation */
- exc_Q14 = silk_LSHIFT32( psSS[ 0 ].Q_Q10, 4 );
- if ( psDD->Seed < 0 ) {- exc_Q14 = -exc_Q14;
- }
-
- /* Add predictions */
- LPC_exc_Q14 = silk_ADD32( exc_Q14, LTP_pred_Q14 );
- xq_Q14 = silk_ADD32( LPC_exc_Q14, LPC_pred_Q14 );
-
- /* Update states */
- sLF_AR_shp_Q14 = silk_SUB32( xq_Q14, n_AR_Q14 );
- psSS[ 0 ].sLTP_shp_Q14 = silk_SUB32( sLF_AR_shp_Q14, n_LF_Q14 );
- psSS[ 0 ].LF_AR_Q14 = sLF_AR_shp_Q14;
- psSS[ 0 ].LPC_exc_Q14 = LPC_exc_Q14;
- psSS[ 0 ].xq_Q14 = xq_Q14;
-
- /* Update states for second best quantization */
-
- /* Quantized excitation */
- exc_Q14 = silk_LSHIFT32( psSS[ 1 ].Q_Q10, 4 );
- if ( psDD->Seed < 0 ) {- exc_Q14 = -exc_Q14;
- }
-
-
- /* Add predictions */
- LPC_exc_Q14 = silk_ADD32( exc_Q14, LTP_pred_Q14 );
- xq_Q14 = silk_ADD32( LPC_exc_Q14, LPC_pred_Q14 );
-
- /* Update states */
- sLF_AR_shp_Q14 = silk_SUB32( xq_Q14, n_AR_Q14 );
- psSS[ 1 ].sLTP_shp_Q14 = silk_SUB32( sLF_AR_shp_Q14, n_LF_Q14 );
- psSS[ 1 ].LF_AR_Q14 = sLF_AR_shp_Q14;
- psSS[ 1 ].LPC_exc_Q14 = LPC_exc_Q14;
- psSS[ 1 ].xq_Q14 = xq_Q14;
- }
-
- *smpl_buf_idx = ( *smpl_buf_idx - 1 ) % DECISION_DELAY;
- if( *smpl_buf_idx < 0 ) *smpl_buf_idx += DECISION_DELAY;
- last_smple_idx = ( *smpl_buf_idx + decisionDelay ) % DECISION_DELAY;
-
- /* Find winner */
- RDmin_Q10 = psSampleState[ 0 ][ 0 ].RD_Q10;
- Winner_ind = 0;
- for( k = 1; k < nStatesDelayedDecision; k++ ) {- if( psSampleState[ k ][ 0 ].RD_Q10 < RDmin_Q10 ) {- RDmin_Q10 = psSampleState[ k ][ 0 ].RD_Q10;
- Winner_ind = k;
- }
- }
-
- /* Increase RD values of expired states */
- Winner_rand_state = psDelDec[ Winner_ind ].RandState[ last_smple_idx ];
- for( k = 0; k < nStatesDelayedDecision; k++ ) {- if( psDelDec[ k ].RandState[ last_smple_idx ] != Winner_rand_state ) {- psSampleState[ k ][ 0 ].RD_Q10 = silk_ADD32( psSampleState[ k ][ 0 ].RD_Q10, silk_int32_MAX >> 4 );
- psSampleState[ k ][ 1 ].RD_Q10 = silk_ADD32( psSampleState[ k ][ 1 ].RD_Q10, silk_int32_MAX >> 4 );
- silk_assert( psSampleState[ k ][ 0 ].RD_Q10 >= 0 );
- }
- }
-
- /* Find worst in first set and best in second set */
- RDmax_Q10 = psSampleState[ 0 ][ 0 ].RD_Q10;
- RDmin_Q10 = psSampleState[ 0 ][ 1 ].RD_Q10;
- RDmax_ind = 0;
- RDmin_ind = 0;
- for( k = 1; k < nStatesDelayedDecision; k++ ) {- /* find worst in first set */
- if( psSampleState[ k ][ 0 ].RD_Q10 > RDmax_Q10 ) {- RDmax_Q10 = psSampleState[ k ][ 0 ].RD_Q10;
- RDmax_ind = k;
- }
- /* find best in second set */
- if( psSampleState[ k ][ 1 ].RD_Q10 < RDmin_Q10 ) {- RDmin_Q10 = psSampleState[ k ][ 1 ].RD_Q10;
- RDmin_ind = k;
- }
- }
-
- /* Replace a state if best from second set outperforms worst in first set */
- if( RDmin_Q10 < RDmax_Q10 ) {- silk_memcpy( ( (opus_int32 *)&psDelDec[ RDmax_ind ] ) + i,
- ( (opus_int32 *)&psDelDec[ RDmin_ind ] ) + i, sizeof( NSQ_del_dec_struct ) - i * sizeof( opus_int32) );
- silk_memcpy( &psSampleState[ RDmax_ind ][ 0 ], &psSampleState[ RDmin_ind ][ 1 ], sizeof( NSQ_sample_struct ) );
- }
-
- /* Write samples from winner to output and long-term filter states */
- psDD = &psDelDec[ Winner_ind ];
- if( subfr > 0 || i >= decisionDelay ) {- pulses[ i - decisionDelay ] = (opus_int8)silk_RSHIFT_ROUND( psDD->Q_Q10[ last_smple_idx ], 10 );
- xq[ i - decisionDelay ] = (opus_int16)silk_SAT16( silk_RSHIFT_ROUND(
- silk_SMULWW( psDD->Xq_Q14[ last_smple_idx ], delayedGain_Q10[ last_smple_idx ] ), 8 ) );
- NSQ->sLTP_shp_Q14[ NSQ->sLTP_shp_buf_idx - decisionDelay ] = psDD->Shape_Q14[ last_smple_idx ];
- sLTP_Q15[ NSQ->sLTP_buf_idx - decisionDelay ] = psDD->Pred_Q15[ last_smple_idx ];
- }
- NSQ->sLTP_shp_buf_idx++;
- NSQ->sLTP_buf_idx++;
-
- /* Update states */
- for( k = 0; k < nStatesDelayedDecision; k++ ) {- psDD = &psDelDec[ k ];
- psSS = &psSampleState[ k ][ 0 ];
- psDD->LF_AR_Q14 = psSS->LF_AR_Q14;
- psDD->sLPC_Q14[ NSQ_LPC_BUF_LENGTH + i ] = psSS->xq_Q14;
- psDD->Xq_Q14[ *smpl_buf_idx ] = psSS->xq_Q14;
- psDD->Q_Q10[ *smpl_buf_idx ] = psSS->Q_Q10;
- psDD->Pred_Q15[ *smpl_buf_idx ] = silk_LSHIFT32( psSS->LPC_exc_Q14, 1 );
- psDD->Shape_Q14[ *smpl_buf_idx ] = psSS->sLTP_shp_Q14;
- psDD->Seed = silk_ADD32_ovflw( psDD->Seed, silk_RSHIFT_ROUND( psSS->Q_Q10, 10 ) );
- psDD->RandState[ *smpl_buf_idx ] = psDD->Seed;
- psDD->RD_Q10 = psSS->RD_Q10;
- }
- delayedGain_Q10[ *smpl_buf_idx ] = Gain_Q10;
- }
- /* Update LPC states */
- for( k = 0; k < nStatesDelayedDecision; k++ ) {- psDD = &psDelDec[ k ];
- silk_memcpy( psDD->sLPC_Q14, &psDD->sLPC_Q14[ length ], NSQ_LPC_BUF_LENGTH * sizeof( opus_int32 ) );
- }
-}
-
-#endif /* NSQ_DEL_DEC_MIPSR1_H__ */
--- /dev/null
+++ b/silk/mips/NSQ_mips.h
@@ -1,0 +1,137 @@
+/***********************************************************************
+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 NSQ_MIPS_H__
+#define NSQ_MIPS_H__
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "main.h"
+#include "macros.h"
+
+#if defined (__mips_dsp) && __mips == 32
+
+#define MIPS_MULT __builtin_mips_mult
+#define MIPS_MADD __builtin_mips_madd
+#define MIPS_EXTR_R __builtin_mips_extr_r_w
+
+#define OVERRIDE_silk_noise_shape_quantizer_short_prediction
+/* suddenly performance is worse */
+#define dont_OVERRIDE_silk_NSQ_noise_shape_feedback_loop
+
+/* gets worst performance result */
+#elif defined(__mips_isa_rev) && __mips == 32
+
+static inline long long MIPS_MULT(int a, int b) {+ return (long long)a * b;
+}
+
+static inline long long MIPS_MADD(long long acc, int a, int b) {+ return acc + (long long)a * b;
+}
+
+static inline opus_val32 MIPS_EXTR_R(long long acc, int shift) {+ return (opus_val32)((acc + (1 << shift) / 2) >> shift);
+}
+
+#define OVERRIDE_silk_noise_shape_quantizer_short_prediction
+#define OVERRIDE_silk_NSQ_noise_shape_feedback_loop
+
+#endif
+
+#if defined(OVERRIDE_silk_noise_shape_quantizer_short_prediction)
+
+static OPUS_INLINE opus_int32 silk_noise_shape_quantizer_short_prediction_mips(const opus_int32 *buf32, const opus_int16 *coef16, opus_int order)
+{+ opus_int64 out;
+ silk_assert( order == 10 || order == 16 );
+
+ out = MIPS_MULT( buf32[ 0 ], coef16[ 0 ] );
+ out = MIPS_MADD( out, buf32[ -1 ], coef16[ 1 ] );
+ out = MIPS_MADD( out, buf32[ -2 ], coef16[ 2 ] );
+ out = MIPS_MADD( out, buf32[ -3 ], coef16[ 3 ] );
+ out = MIPS_MADD( out, buf32[ -4 ], coef16[ 4 ] );
+ out = MIPS_MADD( out, buf32[ -5 ], coef16[ 5 ] );
+ out = MIPS_MADD( out, buf32[ -6 ], coef16[ 6 ] );
+ out = MIPS_MADD( out, buf32[ -7 ], coef16[ 7 ] );
+ out = MIPS_MADD( out, buf32[ -8 ], coef16[ 8 ] );
+ out = MIPS_MADD( out, buf32[ -9 ], coef16[ 9 ] );
+
+ if( order == 16 )
+ {+ out = MIPS_MADD( out, buf32[ -10 ], coef16[ 10 ] );
+ out = MIPS_MADD( out, buf32[ -11 ], coef16[ 11 ] );
+ out = MIPS_MADD( out, buf32[ -12 ], coef16[ 12 ] );
+ out = MIPS_MADD( out, buf32[ -13 ], coef16[ 13 ] );
+ out = MIPS_MADD( out, buf32[ -14 ], coef16[ 14 ] );
+ out = MIPS_MADD( out, buf32[ -15 ], coef16[ 15 ] );
+ }
+ return MIPS_EXTR_R(out, 16);
+}
+
+#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_mips(in, coef, order))
+
+#endif /* OVERRIDE_silk_noise_shape_quantizer_short_prediction */
+
+
+#if defined(OVERRIDE_silk_NSQ_noise_shape_feedback_loop)
+
+static OPUS_INLINE opus_int32 silk_NSQ_noise_shape_feedback_loop_mips(const opus_int32 *data0, opus_int32 *data1, const opus_int16 *coef, opus_int order)
+{+ opus_int32 out;
+ opus_int32 tmp1, tmp2;
+ opus_int j;
+
+ tmp2 = data0[0];
+ tmp1 = data1[0];
+ data1[0] = tmp2;
+
+ out = MIPS_MULT(tmp2, coef[0]);
+
+ for (j = 2; j < order; j += 2) {+ tmp2 = data1[j - 1];
+ data1[j - 1] = tmp1;
+ out = MIPS_MADD(out, tmp1, coef[j - 1]);
+ tmp1 = data1[j + 0];
+ data1[j + 0] = tmp2;
+ out = MIPS_MADD(out, tmp2, coef[j]);
+ }
+ data1[order - 1] = tmp1;
+ out = MIPS_MADD(out, tmp1, coef[order - 1]);
+ /* silk_SMLAWB: shift right by 16 && Q11 -> Q12: shift left by 1 */
+ return MIPS_EXTR_R( out, (16 - 1) );
+}
+
+#undef silk_NSQ_noise_shape_feedback_loop
+#define silk_NSQ_noise_shape_feedback_loop(data0, data1, coef, order, arch) ((void)arch,silk_NSQ_noise_shape_feedback_loop_mips(data0, data1, coef, order))
+
+#endif /* OVERRIDE_silk_NSQ_noise_shape_feedback_loop */
+
+#endif /* NSQ_DEL_DEC_MIPSR1_H__ */
--- a/silk_headers.mk
+++ b/silk_headers.mk
@@ -40,5 +40,5 @@
silk/float/structs_FLP.h \
silk/float/SigProc_FLP.h \
silk/mips/macros_mipsr1.h \
-silk/mips/NSQ_del_dec_mipsr1.h \
+silk/mips/NSQ_mips.h \
silk/mips/sigproc_fix_mipsr1.h
--
⑨