diff options
Diffstat (limited to 'src/opus-1.0.2/silk/float/wrappers_FLP.c')
| -rw-r--r-- | src/opus-1.0.2/silk/float/wrappers_FLP.c | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/src/opus-1.0.2/silk/float/wrappers_FLP.c b/src/opus-1.0.2/silk/float/wrappers_FLP.c deleted file mode 100644 index 4259e90e..00000000 --- a/src/opus-1.0.2/silk/float/wrappers_FLP.c +++ /dev/null @@ -1,200 +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_FLP.h" - -/* Wrappers. Calls flp / fix code */ - -/* Convert AR filter coefficients to NLSF parameters */ -void silk_A2NLSF_FLP( - opus_int16 *NLSF_Q15, /* O NLSF vector [ LPC_order ] */ - const silk_float *pAR, /* I LPC coefficients [ LPC_order ] */ - const opus_int LPC_order /* I LPC order */ -) -{ - opus_int i; - opus_int32 a_fix_Q16[ MAX_LPC_ORDER ]; - - for( i = 0; i < LPC_order; i++ ) { - a_fix_Q16[ i ] = silk_float2int( pAR[ i ] * 65536.0f ); - } - - silk_A2NLSF( NLSF_Q15, a_fix_Q16, LPC_order ); -} - -/* Convert LSF parameters to AR prediction filter coefficients */ -void silk_NLSF2A_FLP( - silk_float *pAR, /* O LPC coefficients [ LPC_order ] */ - const opus_int16 *NLSF_Q15, /* I NLSF vector [ LPC_order ] */ - const opus_int LPC_order /* I LPC order */ -) -{ - opus_int i; - opus_int16 a_fix_Q12[ MAX_LPC_ORDER ]; - - silk_NLSF2A( a_fix_Q12, NLSF_Q15, LPC_order ); - - for( i = 0; i < LPC_order; i++ ) { - pAR[ i ] = ( silk_float )a_fix_Q12[ i ] * ( 1.0f / 4096.0f ); - } -} - -/******************************************/ -/* Floating-point NLSF processing wrapper */ -/******************************************/ -void silk_process_NLSFs_FLP( - silk_encoder_state *psEncC, /* I/O Encoder state */ - silk_float PredCoef[ 2 ][ MAX_LPC_ORDER ], /* O Prediction coefficients */ - opus_int16 NLSF_Q15[ MAX_LPC_ORDER ], /* I/O Normalized LSFs (quant out) (0 - (2^15-1)) */ - const opus_int16 prev_NLSF_Q15[ MAX_LPC_ORDER ] /* I Previous Normalized LSFs (0 - (2^15-1)) */ -) -{ - opus_int i, j; - opus_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ]; - - silk_process_NLSFs( psEncC, PredCoef_Q12, NLSF_Q15, prev_NLSF_Q15); - - for( j = 0; j < 2; j++ ) { - for( i = 0; i < psEncC->predictLPCOrder; i++ ) { - PredCoef[ j ][ i ] = ( silk_float )PredCoef_Q12[ j ][ i ] * ( 1.0f / 4096.0f ); - } - } -} - -/****************************************/ -/* Floating-point Silk NSQ wrapper */ -/****************************************/ -void silk_NSQ_wrapper_FLP( - silk_encoder_state_FLP *psEnc, /* I/O Encoder state FLP */ - silk_encoder_control_FLP *psEncCtrl, /* I/O Encoder control FLP */ - SideInfoIndices *psIndices, /* I/O Quantization indices */ - silk_nsq_state *psNSQ, /* I/O Noise Shaping Quantzation state */ - opus_int8 pulses[], /* O Quantized pulse signal */ - const silk_float x[] /* I Prefiltered input signal */ -) -{ - opus_int i, j; - opus_int32 x_Q3[ MAX_FRAME_LENGTH ]; - opus_int32 Gains_Q16[ MAX_NB_SUBFR ]; - silk_DWORD_ALIGN opus_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ]; - opus_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ]; - opus_int LTP_scale_Q14; - - /* Noise shaping parameters */ - opus_int16 AR2_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ]; - opus_int32 LF_shp_Q14[ MAX_NB_SUBFR ]; /* Packs two int16 coefficients per int32 value */ - opus_int Lambda_Q10; - opus_int Tilt_Q14[ MAX_NB_SUBFR ]; - opus_int HarmShapeGain_Q14[ MAX_NB_SUBFR ]; - - /* Convert control struct to fix control struct */ - /* Noise shape parameters */ - for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) { - for( j = 0; j < psEnc->sCmn.shapingLPCOrder; j++ ) { - AR2_Q13[ i * MAX_SHAPE_LPC_ORDER + j ] = silk_float2int( psEncCtrl->AR2[ i * MAX_SHAPE_LPC_ORDER + j ] * 8192.0f ); - } - } - - for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) { - LF_shp_Q14[ i ] = silk_LSHIFT32( silk_float2int( psEncCtrl->LF_AR_shp[ i ] * 16384.0f ), 16 ) | - (opus_uint16)silk_float2int( psEncCtrl->LF_MA_shp[ i ] * 16384.0f ); - Tilt_Q14[ i ] = (opus_int)silk_float2int( psEncCtrl->Tilt[ i ] * 16384.0f ); - HarmShapeGain_Q14[ i ] = (opus_int)silk_float2int( psEncCtrl->HarmShapeGain[ i ] * 16384.0f ); - } - Lambda_Q10 = ( opus_int )silk_float2int( psEncCtrl->Lambda * 1024.0f ); - - /* prediction and coding parameters */ - for( i = 0; i < psEnc->sCmn.nb_subfr * LTP_ORDER; i++ ) { - LTPCoef_Q14[ i ] = (opus_int16)silk_float2int( psEncCtrl->LTPCoef[ i ] * 16384.0f ); - } - - for( j = 0; j < 2; j++ ) { - for( i = 0; i < psEnc->sCmn.predictLPCOrder; i++ ) { - PredCoef_Q12[ j ][ i ] = (opus_int16)silk_float2int( psEncCtrl->PredCoef[ j ][ i ] * 4096.0f ); - } - } - - for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) { - Gains_Q16[ i ] = silk_float2int( psEncCtrl->Gains[ i ] * 65536.0f ); - silk_assert( Gains_Q16[ i ] > 0 ); - } - - if( psIndices->signalType == TYPE_VOICED ) { - LTP_scale_Q14 = silk_LTPScales_table_Q14[ psIndices->LTP_scaleIndex ]; - } else { - LTP_scale_Q14 = 0; - } - - /* Convert input to fix */ - for( i = 0; i < psEnc->sCmn.frame_length; i++ ) { - x_Q3[ i ] = silk_float2int( 8.0f * x[ i ] ); - } - - /* Call NSQ */ - if( psEnc->sCmn.nStatesDelayedDecision > 1 || psEnc->sCmn.warping_Q16 > 0 ) { - silk_NSQ_del_dec( &psEnc->sCmn, psNSQ, psIndices, x_Q3, pulses, PredCoef_Q12[ 0 ], LTPCoef_Q14, - AR2_Q13, HarmShapeGain_Q14, Tilt_Q14, LF_shp_Q14, Gains_Q16, psEncCtrl->pitchL, Lambda_Q10, LTP_scale_Q14 ); - } else { - silk_NSQ( &psEnc->sCmn, psNSQ, psIndices, x_Q3, pulses, PredCoef_Q12[ 0 ], LTPCoef_Q14, - AR2_Q13, HarmShapeGain_Q14, Tilt_Q14, LF_shp_Q14, Gains_Q16, psEncCtrl->pitchL, Lambda_Q10, LTP_scale_Q14 ); - } -} - -/***********************************************/ -/* Floating-point Silk LTP quantiation wrapper */ -/***********************************************/ -void silk_quant_LTP_gains_FLP( - silk_float B[ MAX_NB_SUBFR * LTP_ORDER ], /* I/O (Un-)quantized LTP gains */ - opus_int8 cbk_index[ MAX_NB_SUBFR ], /* O Codebook index */ - opus_int8 *periodicity_index, /* O Periodicity index */ - const silk_float W[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* I Error weights */ - const opus_int mu_Q10, /* I Mu value (R/D tradeoff) */ - const opus_int lowComplexity, /* I Flag for low complexity */ - const opus_int nb_subfr /* I number of subframes */ -) -{ - opus_int i; - opus_int16 B_Q14[ MAX_NB_SUBFR * LTP_ORDER ]; - opus_int32 W_Q18[ MAX_NB_SUBFR*LTP_ORDER*LTP_ORDER ]; - - for( i = 0; i < nb_subfr * LTP_ORDER; i++ ) { - B_Q14[ i ] = (opus_int16)silk_float2int( B[ i ] * 16384.0f ); - } - for( i = 0; i < nb_subfr * LTP_ORDER * LTP_ORDER; i++ ) { - W_Q18[ i ] = (opus_int32)silk_float2int( W[ i ] * 262144.0f ); - } - - silk_quant_LTP_gains( B_Q14, cbk_index, periodicity_index, W_Q18, mu_Q10, lowComplexity, nb_subfr ); - - for( i = 0; i < nb_subfr * LTP_ORDER; i++ ) { - B[ i ] = (silk_float)B_Q14[ i ] * ( 1.0f / 16384.0f ); - } -} |