Index: third_party/opus/src/silk/fixed/prefilter_FIX.c |
diff --git a/third_party/opus/src/silk/fixed/prefilter_FIX.c b/third_party/opus/src/silk/fixed/prefilter_FIX.c |
deleted file mode 100644 |
index 6a8e35152efbd6d0b17227aa7525a3a23dee9254..0000000000000000000000000000000000000000 |
--- a/third_party/opus/src/silk/fixed/prefilter_FIX.c |
+++ /dev/null |
@@ -1,221 +0,0 @@ |
-/*********************************************************************** |
-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. |
-***********************************************************************/ |
- |
-#ifdef HAVE_CONFIG_H |
-#include "config.h" |
-#endif |
- |
-#include "main_FIX.h" |
-#include "stack_alloc.h" |
-#include "tuning_parameters.h" |
- |
-#if defined(MIPSr1_ASM) |
-#include "mips/prefilter_FIX_mipsr1.h" |
-#endif |
- |
- |
-#if !defined(OVERRIDE_silk_warped_LPC_analysis_filter_FIX) |
-#define silk_warped_LPC_analysis_filter_FIX(state, res_Q2, coef_Q13, input, lambda_Q16, length, order, arch) \ |
- ((void)(arch),silk_warped_LPC_analysis_filter_FIX_c(state, res_Q2, coef_Q13, input, lambda_Q16, length, order)) |
-#endif |
- |
-/* Prefilter for finding Quantizer input signal */ |
-static OPUS_INLINE void silk_prefilt_FIX( |
- silk_prefilter_state_FIX *P, /* I/O state */ |
- opus_int32 st_res_Q12[], /* I short term residual signal */ |
- opus_int32 xw_Q3[], /* O prefiltered signal */ |
- opus_int32 HarmShapeFIRPacked_Q12, /* I Harmonic shaping coeficients */ |
- opus_int Tilt_Q14, /* I Tilt shaping coeficient */ |
- opus_int32 LF_shp_Q14, /* I Low-frequancy shaping coeficients */ |
- opus_int lag, /* I Lag for harmonic shaping */ |
- opus_int length /* I Length of signals */ |
-); |
- |
-void silk_warped_LPC_analysis_filter_FIX_c( |
- opus_int32 state[], /* I/O State [order + 1] */ |
- opus_int32 res_Q2[], /* O Residual signal [length] */ |
- const opus_int16 coef_Q13[], /* I Coefficients [order] */ |
- const opus_int16 input[], /* I Input signal [length] */ |
- const opus_int16 lambda_Q16, /* I Warping factor */ |
- const opus_int length, /* I Length of input signal */ |
- const opus_int order /* I Filter order (even) */ |
-) |
-{ |
- opus_int n, i; |
- opus_int32 acc_Q11, tmp1, tmp2; |
- |
- /* Order must be even */ |
- silk_assert( ( order & 1 ) == 0 ); |
- |
- for( n = 0; n < length; n++ ) { |
- /* Output of lowpass section */ |
- tmp2 = silk_SMLAWB( state[ 0 ], state[ 1 ], lambda_Q16 ); |
- state[ 0 ] = silk_LSHIFT( input[ n ], 14 ); |
- /* Output of allpass section */ |
- tmp1 = silk_SMLAWB( state[ 1 ], state[ 2 ] - tmp2, lambda_Q16 ); |
- state[ 1 ] = tmp2; |
- acc_Q11 = silk_RSHIFT( order, 1 ); |
- acc_Q11 = silk_SMLAWB( acc_Q11, tmp2, coef_Q13[ 0 ] ); |
- /* Loop over allpass sections */ |
- for( i = 2; i < order; i += 2 ) { |
- /* Output of allpass section */ |
- tmp2 = silk_SMLAWB( state[ i ], state[ i + 1 ] - tmp1, lambda_Q16 ); |
- state[ i ] = tmp1; |
- acc_Q11 = silk_SMLAWB( acc_Q11, tmp1, coef_Q13[ i - 1 ] ); |
- /* Output of allpass section */ |
- tmp1 = silk_SMLAWB( state[ i + 1 ], state[ i + 2 ] - tmp2, lambda_Q16 ); |
- state[ i + 1 ] = tmp2; |
- acc_Q11 = silk_SMLAWB( acc_Q11, tmp2, coef_Q13[ i ] ); |
- } |
- state[ order ] = tmp1; |
- acc_Q11 = silk_SMLAWB( acc_Q11, tmp1, coef_Q13[ order - 1 ] ); |
- res_Q2[ n ] = silk_LSHIFT( (opus_int32)input[ n ], 2 ) - silk_RSHIFT_ROUND( acc_Q11, 9 ); |
- } |
-} |
- |
-void silk_prefilter_FIX( |
- silk_encoder_state_FIX *psEnc, /* I/O Encoder state */ |
- const silk_encoder_control_FIX *psEncCtrl, /* I Encoder control */ |
- opus_int32 xw_Q3[], /* O Weighted signal */ |
- const opus_int16 x[] /* I Speech signal */ |
-) |
-{ |
- silk_prefilter_state_FIX *P = &psEnc->sPrefilt; |
- opus_int j, k, lag; |
- opus_int32 tmp_32; |
- const opus_int16 *AR1_shp_Q13; |
- const opus_int16 *px; |
- opus_int32 *pxw_Q3; |
- opus_int HarmShapeGain_Q12, Tilt_Q14; |
- opus_int32 HarmShapeFIRPacked_Q12, LF_shp_Q14; |
- VARDECL( opus_int32, x_filt_Q12 ); |
- VARDECL( opus_int32, st_res_Q2 ); |
- opus_int16 B_Q10[ 2 ]; |
- SAVE_STACK; |
- |
- /* Set up pointers */ |
- px = x; |
- pxw_Q3 = xw_Q3; |
- lag = P->lagPrev; |
- ALLOC( x_filt_Q12, psEnc->sCmn.subfr_length, opus_int32 ); |
- ALLOC( st_res_Q2, psEnc->sCmn.subfr_length, opus_int32 ); |
- for( k = 0; k < psEnc->sCmn.nb_subfr; k++ ) { |
- /* Update Variables that change per sub frame */ |
- if( psEnc->sCmn.indices.signalType == TYPE_VOICED ) { |
- lag = psEncCtrl->pitchL[ k ]; |
- } |
- |
- /* Noise shape parameters */ |
- HarmShapeGain_Q12 = silk_SMULWB( (opus_int32)psEncCtrl->HarmShapeGain_Q14[ k ], 16384 - psEncCtrl->HarmBoost_Q14[ k ] ); |
- silk_assert( HarmShapeGain_Q12 >= 0 ); |
- HarmShapeFIRPacked_Q12 = silk_RSHIFT( HarmShapeGain_Q12, 2 ); |
- HarmShapeFIRPacked_Q12 |= silk_LSHIFT( (opus_int32)silk_RSHIFT( HarmShapeGain_Q12, 1 ), 16 ); |
- Tilt_Q14 = psEncCtrl->Tilt_Q14[ k ]; |
- LF_shp_Q14 = psEncCtrl->LF_shp_Q14[ k ]; |
- AR1_shp_Q13 = &psEncCtrl->AR1_Q13[ k * MAX_SHAPE_LPC_ORDER ]; |
- |
- /* Short term FIR filtering*/ |
- silk_warped_LPC_analysis_filter_FIX( P->sAR_shp, st_res_Q2, AR1_shp_Q13, px, |
- psEnc->sCmn.warping_Q16, psEnc->sCmn.subfr_length, psEnc->sCmn.shapingLPCOrder, psEnc->sCmn.arch ); |
- |
- /* Reduce (mainly) low frequencies during harmonic emphasis */ |
- B_Q10[ 0 ] = silk_RSHIFT_ROUND( psEncCtrl->GainsPre_Q14[ k ], 4 ); |
- tmp_32 = silk_SMLABB( SILK_FIX_CONST( INPUT_TILT, 26 ), psEncCtrl->HarmBoost_Q14[ k ], HarmShapeGain_Q12 ); /* Q26 */ |
- tmp_32 = silk_SMLABB( tmp_32, psEncCtrl->coding_quality_Q14, SILK_FIX_CONST( HIGH_RATE_INPUT_TILT, 12 ) ); /* Q26 */ |
- tmp_32 = silk_SMULWB( tmp_32, -psEncCtrl->GainsPre_Q14[ k ] ); /* Q24 */ |
- tmp_32 = silk_RSHIFT_ROUND( tmp_32, 14 ); /* Q10 */ |
- B_Q10[ 1 ]= silk_SAT16( tmp_32 ); |
- x_filt_Q12[ 0 ] = silk_MLA( silk_MUL( st_res_Q2[ 0 ], B_Q10[ 0 ] ), P->sHarmHP_Q2, B_Q10[ 1 ] ); |
- for( j = 1; j < psEnc->sCmn.subfr_length; j++ ) { |
- x_filt_Q12[ j ] = silk_MLA( silk_MUL( st_res_Q2[ j ], B_Q10[ 0 ] ), st_res_Q2[ j - 1 ], B_Q10[ 1 ] ); |
- } |
- P->sHarmHP_Q2 = st_res_Q2[ psEnc->sCmn.subfr_length - 1 ]; |
- |
- silk_prefilt_FIX( P, x_filt_Q12, pxw_Q3, HarmShapeFIRPacked_Q12, Tilt_Q14, LF_shp_Q14, lag, psEnc->sCmn.subfr_length ); |
- |
- px += psEnc->sCmn.subfr_length; |
- pxw_Q3 += psEnc->sCmn.subfr_length; |
- } |
- |
- P->lagPrev = psEncCtrl->pitchL[ psEnc->sCmn.nb_subfr - 1 ]; |
- RESTORE_STACK; |
-} |
- |
-#ifndef OVERRIDE_silk_prefilt_FIX |
-/* Prefilter for finding Quantizer input signal */ |
-static OPUS_INLINE void silk_prefilt_FIX( |
- silk_prefilter_state_FIX *P, /* I/O state */ |
- opus_int32 st_res_Q12[], /* I short term residual signal */ |
- opus_int32 xw_Q3[], /* O prefiltered signal */ |
- opus_int32 HarmShapeFIRPacked_Q12, /* I Harmonic shaping coeficients */ |
- opus_int Tilt_Q14, /* I Tilt shaping coeficient */ |
- opus_int32 LF_shp_Q14, /* I Low-frequancy shaping coeficients */ |
- opus_int lag, /* I Lag for harmonic shaping */ |
- opus_int length /* I Length of signals */ |
-) |
-{ |
- opus_int i, idx, LTP_shp_buf_idx; |
- opus_int32 n_LTP_Q12, n_Tilt_Q10, n_LF_Q10; |
- opus_int32 sLF_MA_shp_Q12, sLF_AR_shp_Q12; |
- opus_int16 *LTP_shp_buf; |
- |
- /* To speed up use temp variables instead of using the struct */ |
- LTP_shp_buf = P->sLTP_shp; |
- LTP_shp_buf_idx = P->sLTP_shp_buf_idx; |
- sLF_AR_shp_Q12 = P->sLF_AR_shp_Q12; |
- sLF_MA_shp_Q12 = P->sLF_MA_shp_Q12; |
- |
- for( i = 0; i < length; i++ ) { |
- if( lag > 0 ) { |
- /* unrolled loop */ |
- silk_assert( HARM_SHAPE_FIR_TAPS == 3 ); |
- idx = lag + LTP_shp_buf_idx; |
- n_LTP_Q12 = silk_SMULBB( LTP_shp_buf[ ( idx - HARM_SHAPE_FIR_TAPS / 2 - 1) & LTP_MASK ], HarmShapeFIRPacked_Q12 ); |
- n_LTP_Q12 = silk_SMLABT( n_LTP_Q12, LTP_shp_buf[ ( idx - HARM_SHAPE_FIR_TAPS / 2 ) & LTP_MASK ], HarmShapeFIRPacked_Q12 ); |
- n_LTP_Q12 = silk_SMLABB( n_LTP_Q12, LTP_shp_buf[ ( idx - HARM_SHAPE_FIR_TAPS / 2 + 1) & LTP_MASK ], HarmShapeFIRPacked_Q12 ); |
- } else { |
- n_LTP_Q12 = 0; |
- } |
- |
- n_Tilt_Q10 = silk_SMULWB( sLF_AR_shp_Q12, Tilt_Q14 ); |
- n_LF_Q10 = silk_SMLAWB( silk_SMULWT( sLF_AR_shp_Q12, LF_shp_Q14 ), sLF_MA_shp_Q12, LF_shp_Q14 ); |
- |
- sLF_AR_shp_Q12 = silk_SUB32( st_res_Q12[ i ], silk_LSHIFT( n_Tilt_Q10, 2 ) ); |
- sLF_MA_shp_Q12 = silk_SUB32( sLF_AR_shp_Q12, silk_LSHIFT( n_LF_Q10, 2 ) ); |
- |
- LTP_shp_buf_idx = ( LTP_shp_buf_idx - 1 ) & LTP_MASK; |
- LTP_shp_buf[ LTP_shp_buf_idx ] = (opus_int16)silk_SAT16( silk_RSHIFT_ROUND( sLF_MA_shp_Q12, 12 ) ); |
- |
- xw_Q3[i] = silk_RSHIFT_ROUND( silk_SUB32( sLF_MA_shp_Q12, n_LTP_Q12 ), 9 ); |
- } |
- |
- /* Copy temp variable back to state */ |
- P->sLF_AR_shp_Q12 = sLF_AR_shp_Q12; |
- P->sLF_MA_shp_Q12 = sLF_MA_shp_Q12; |
- P->sLTP_shp_buf_idx = LTP_shp_buf_idx; |
-} |
-#endif /* OVERRIDE_silk_prefilt_FIX */ |