diff options
Diffstat (limited to 'silk/fixed')
27 files changed, 388 insertions, 360 deletions
diff --git a/silk/fixed/LTP_analysis_filter_FIX.c b/silk/fixed/LTP_analysis_filter_FIX.c index a8fee55..a941908 100644 --- a/silk/fixed/LTP_analysis_filter_FIX.c +++ b/silk/fixed/LTP_analysis_filter_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/LTP_scale_ctrl_FIX.c b/silk/fixed/LTP_scale_ctrl_FIX.c index ac2fba1..3dcedef 100644 --- a/silk/fixed/LTP_scale_ctrl_FIX.c +++ b/silk/fixed/LTP_scale_ctrl_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/apply_sine_window_FIX.c b/silk/fixed/apply_sine_window_FIX.c index 897fdc3..4502b71 100644 --- a/silk/fixed/apply_sine_window_FIX.c +++ b/silk/fixed/apply_sine_window_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/autocorr_FIX.c b/silk/fixed/autocorr_FIX.c index c2ebb6a..dec3cc0 100644 --- a/silk/fixed/autocorr_FIX.c +++ b/silk/fixed/autocorr_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE. #endif #include "SigProc_FIX.h" +#include "celt_lpc.h" /* Compute autocorrelation */ void silk_autocorr( @@ -40,37 +41,7 @@ void silk_autocorr( const opus_int correlationCount /* I Number of correlation taps to compute */ ) { - opus_int i, lz, nRightShifts, corrCount; - opus_int64 corr64; - + opus_int corrCount; corrCount = silk_min_int( inputDataSize, correlationCount ); - - /* compute energy (zero-lag correlation) */ - corr64 = silk_inner_prod16_aligned_64( inputData, inputData, inputDataSize ); - - /* deal with all-zero input data */ - corr64 += 1; - - /* number of leading zeros */ - lz = silk_CLZ64( corr64 ); - - /* scaling: number of right shifts applied to correlations */ - nRightShifts = 35 - lz; - *scale = nRightShifts; - - if( nRightShifts <= 0 ) { - results[ 0 ] = silk_LSHIFT( (opus_int32)silk_CHECK_FIT32( corr64 ), -nRightShifts ); - - /* compute remaining correlations based on int32 inner product */ - for( i = 1; i < corrCount; i++ ) { - results[ i ] = silk_LSHIFT( silk_inner_prod_aligned( inputData, inputData + i, inputDataSize - i ), -nRightShifts ); - } - } else { - results[ 0 ] = (opus_int32)silk_CHECK_FIT32( silk_RSHIFT64( corr64, nRightShifts ) ); - - /* compute remaining correlations based on int64 inner product */ - for( i = 1; i < corrCount; i++ ) { - results[ i ] = (opus_int32)silk_CHECK_FIT32( silk_RSHIFT64( silk_inner_prod16_aligned_64( inputData, inputData + i, inputDataSize - i ), nRightShifts ) ); - } - } + *scale = _celt_autocorr(inputData, results, NULL, 0, corrCount-1, inputDataSize); } diff --git a/silk/fixed/burg_modified_FIX.c b/silk/fixed/burg_modified_FIX.c index 26a66b1..f5112b6 100644 --- a/silk/fixed/burg_modified_FIX.c +++ b/silk/fixed/burg_modified_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -32,6 +32,7 @@ POSSIBILITY OF SUCH DAMAGE. #include "SigProc_FIX.h" #include "define.h" #include "tuning_parameters.h" +#include "pitch.h" #define MAX_FRAME_SIZE 384 /* subfr_length * nb_subfr = ( 0.005 * 16000 + 16 ) * 4 = 384 */ @@ -60,6 +61,7 @@ void silk_burg_modified( opus_int32 Af_QA[ SILK_MAX_ORDER_LPC ]; opus_int32 CAf[ SILK_MAX_ORDER_LPC + 1 ]; opus_int32 CAb[ SILK_MAX_ORDER_LPC + 1 ]; + opus_int32 xcorr[ SILK_MAX_ORDER_LPC ]; silk_assert( subfr_length * nb_subfr <= MAX_FRAME_SIZE ); @@ -93,10 +95,17 @@ void silk_burg_modified( } } else { for( s = 0; s < nb_subfr; s++ ) { + int i; + opus_int32 d; x_ptr = x + s * subfr_length; + celt_pitch_xcorr(x_ptr, x_ptr + 1, xcorr, subfr_length - D, D ); for( n = 1; n < D + 1; n++ ) { - C_first_row[ n - 1 ] += silk_LSHIFT32( - silk_inner_prod_aligned( x_ptr, x_ptr + n, subfr_length - n ), -rshifts ); + for ( i = n + subfr_length - D, d = 0; i < subfr_length; i++ ) + d = MAC16_16( d, x_ptr[ i ], x_ptr[ i - n ] ); + xcorr[ n - 1 ] += d; + } + for( n = 1; n < D + 1; n++ ) { + C_first_row[ n - 1 ] += silk_LSHIFT32( xcorr[ n - 1 ], -rshifts ); } } } @@ -263,7 +272,7 @@ void silk_burg_modified( tmp1 = silk_SMLAWW( tmp1, Atmp1, Atmp1 ); /* Q16 */ A_Q16[ k ] = -Atmp1; } - *res_nrg = silk_SMLAWW( nrg, silk_SMMUL( FIND_LPC_COND_FAC, C0 ), -tmp1 ); /* Q( -rshifts ) */ + *res_nrg = silk_SMLAWW( nrg, silk_SMMUL( SILK_FIX_CONST( FIND_LPC_COND_FAC, 32 ), C0 ), -tmp1 );/* Q( -rshifts ) */ *res_nrg_Q = -rshifts; - } + } } diff --git a/silk/fixed/corrMatrix_FIX.c b/silk/fixed/corrMatrix_FIX.c index 2150249..c617270 100644 --- a/silk/fixed/corrMatrix_FIX.c +++ b/silk/fixed/corrMatrix_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/encode_frame_FIX.c b/silk/fixed/encode_frame_FIX.c index a37a9f2..cacfd67 100644 --- a/silk/fixed/encode_frame_FIX.c +++ b/silk/fixed/encode_frame_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE. #endif #include "main_FIX.h" +#include "stack_alloc.h" #include "tuning_parameters.h" /* Low Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode with lower bitrate */ @@ -84,9 +85,7 @@ opus_int silk_encode_frame_FIX( { silk_encoder_control_FIX sEncCtrl; opus_int i, iter, maxIter, found_upper, found_lower, ret = 0; - opus_int16 *x_frame, *res_pitch_frame; - opus_int32 xfw_Q3[ MAX_FRAME_LENGTH ]; - opus_int16 res_pitch[ 2 * MAX_FRAME_LENGTH + LA_PITCH_MAX ]; + opus_int16 *x_frame; ec_enc sRangeEnc_copy, sRangeEnc_copy2; silk_nsq_state sNSQ_copy, sNSQ_copy2; opus_int32 seed_copy, nBits, nBits_lower, nBits_upper, gainMult_lower, gainMult_upper; @@ -95,7 +94,7 @@ opus_int silk_encode_frame_FIX( opus_int16 ec_prevLagIndex_copy; opus_int ec_prevSignalType_copy; opus_int8 LastGainIndex_copy2; - opus_uint8 ec_buf_copy[ 1275 ]; + SAVE_STACK; /* This is totally unnecessary but many compilers (including gcc) are too dumb to realise it */ LastGainIndex_copy2 = nBits_lower = nBits_upper = gainMult_lower = gainMult_upper = 0; @@ -105,9 +104,8 @@ opus_int silk_encode_frame_FIX( /**************************************************************/ /* Set up Input Pointers, and insert frame in input buffer */ /*************************************************************/ - /* pointers aligned with start of frame to encode */ - x_frame = psEnc->x_buf + psEnc->sCmn.ltp_mem_length; /* start of frame to encode */ - res_pitch_frame = res_pitch + psEnc->sCmn.ltp_mem_length; /* start of pitch LPC residual frame */ + /* start of frame to encode */ + x_frame = psEnc->x_buf + psEnc->sCmn.ltp_mem_length; /***************************************/ /* Ensure smooth bandwidth transitions */ @@ -120,6 +118,17 @@ opus_int silk_encode_frame_FIX( silk_memcpy( x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.inputBuf + 1, psEnc->sCmn.frame_length * sizeof( opus_int16 ) ); if( !psEnc->sCmn.prefillFlag ) { + VARDECL( opus_int32, xfw_Q3 ); + VARDECL( opus_int16, res_pitch ); + VARDECL( opus_uint8, ec_buf_copy ); + opus_int16 *res_pitch_frame; + + ALLOC( res_pitch, + psEnc->sCmn.la_pitch + psEnc->sCmn.frame_length + + psEnc->sCmn.ltp_mem_length, opus_int16 ); + /* start of pitch LPC residual frame */ + res_pitch_frame = res_pitch + psEnc->sCmn.ltp_mem_length; + /*****************************************/ /* Find pitch lags, initial LPC analysis */ /*****************************************/ @@ -143,6 +152,7 @@ opus_int silk_encode_frame_FIX( /*****************************************/ /* Prefiltering for noise shaper */ /*****************************************/ + ALLOC( xfw_Q3, psEnc->sCmn.frame_length, opus_int32 ); silk_prefilter_FIX( psEnc, &sEncCtrl, xfw_Q3, x_frame ); /****************************************/ @@ -164,6 +174,7 @@ opus_int silk_encode_frame_FIX( seed_copy = psEnc->sCmn.indices.Seed; ec_prevLagIndex_copy = psEnc->sCmn.ec_prevLagIndex; ec_prevSignalType_copy = psEnc->sCmn.ec_prevSignalType; + ALLOC( ec_buf_copy, 1275, opus_uint8 ); for( iter = 0; ; iter++ ) { if( gainsID == gainsID_lower ) { nBits = nBits_lower; @@ -299,6 +310,7 @@ opus_int silk_encode_frame_FIX( if( psEnc->sCmn.prefillFlag ) { /* No payload */ *pnBytesOut = 0; + RESTORE_STACK; return ret; } @@ -309,6 +321,7 @@ opus_int silk_encode_frame_FIX( /* Payload size */ *pnBytesOut = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 ); + RESTORE_STACK; return ret; } diff --git a/silk/fixed/find_LPC_FIX.c b/silk/fixed/find_LPC_FIX.c index 0ed7e84..70cefb6 100644 --- a/silk/fixed/find_LPC_FIX.c +++ b/silk/fixed/find_LPC_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE. #endif #include "main_FIX.h" +#include "stack_alloc.h" #include "tuning_parameters.h" /* Finds LPC vector from correlations, and converts to NLSF */ @@ -51,7 +52,7 @@ void silk_find_LPC_FIX( opus_int res_nrg_interp_Q, res_nrg_Q, res_tmp_nrg_Q; opus_int16 a_tmp_Q12[ MAX_LPC_ORDER ]; opus_int16 NLSF0_Q15[ MAX_LPC_ORDER ]; - opus_int16 LPC_res[ MAX_FRAME_LENGTH + MAX_NB_SUBFR * MAX_LPC_ORDER ]; + SAVE_STACK; subfr_length = psEncC->subfr_length + psEncC->predictLPCOrder; @@ -62,6 +63,8 @@ void silk_find_LPC_FIX( silk_burg_modified( &res_nrg, &res_nrg_Q, a_Q16, x, minInvGain_Q30, subfr_length, psEncC->nb_subfr, psEncC->predictLPCOrder ); if( psEncC->useInterpolatedNLSFs && !psEncC->first_frame_after_reset && psEncC->nb_subfr == MAX_NB_SUBFR ) { + VARDECL( opus_int16, LPC_res ); + /* Optimal solution for last 10 ms */ silk_burg_modified( &res_tmp_nrg, &res_tmp_nrg_Q, a_tmp_Q16, x + 2 * subfr_length, minInvGain_Q30, subfr_length, 2, psEncC->predictLPCOrder ); @@ -81,6 +84,8 @@ void silk_find_LPC_FIX( /* Convert to NLSFs */ silk_A2NLSF( NLSF_Q15, a_tmp_Q16, psEncC->predictLPCOrder ); + ALLOC( LPC_res, 2 * subfr_length, opus_int16 ); + /* Search over interpolation indices to find the one with lowest residual energy */ for( k = 3; k >= 0; k-- ) { /* Interpolate NLSFs for first half */ @@ -142,4 +147,5 @@ void silk_find_LPC_FIX( } silk_assert( psEncC->indices.NLSFInterpCoef_Q2 == 4 || ( psEncC->useInterpolatedNLSFs && !psEncC->first_frame_after_reset && psEncC->nb_subfr == MAX_NB_SUBFR ) ); + RESTORE_STACK; } diff --git a/silk/fixed/find_LTP_FIX.c b/silk/fixed/find_LTP_FIX.c index bd21087..8c4d703 100644 --- a/silk/fixed/find_LTP_FIX.c +++ b/silk/fixed/find_LTP_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/find_pitch_lags_FIX.c b/silk/fixed/find_pitch_lags_FIX.c index 39c3048..f60b436 100644 --- a/silk/fixed/find_pitch_lags_FIX.c +++ b/silk/fixed/find_pitch_lags_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE. #endif #include "main_FIX.h" +#include "stack_alloc.h" #include "tuning_parameters.h" /* Find pitch lags */ @@ -41,13 +42,15 @@ void silk_find_pitch_lags_FIX( ) { opus_int buf_len, i, scale; - opus_int32 thrhld_Q15, res_nrg; + opus_int32 thrhld_Q13, res_nrg; const opus_int16 *x_buf, *x_buf_ptr; - opus_int16 Wsig[ FIND_PITCH_LPC_WIN_MAX ], *Wsig_ptr; + VARDECL( opus_int16, Wsig ); + opus_int16 *Wsig_ptr; opus_int32 auto_corr[ MAX_FIND_PITCH_LPC_ORDER + 1 ]; opus_int16 rc_Q15[ MAX_FIND_PITCH_LPC_ORDER ]; opus_int32 A_Q24[ MAX_FIND_PITCH_LPC_ORDER ]; opus_int16 A_Q12[ MAX_FIND_PITCH_LPC_ORDER ]; + SAVE_STACK; /******************************************/ /* Set up buffer lengths etc based on Fs */ @@ -65,6 +68,8 @@ void silk_find_pitch_lags_FIX( /* Calculate windowed signal */ + ALLOC( Wsig, psEnc->sCmn.pitch_LPC_win_length, opus_int16 ); + /* First LA_LTP samples */ x_buf_ptr = x_buf + buf_len - psEnc->sCmn.pitch_LPC_win_length; Wsig_ptr = Wsig; @@ -110,19 +115,19 @@ void silk_find_pitch_lags_FIX( if( psEnc->sCmn.indices.signalType != TYPE_NO_VOICE_ACTIVITY && psEnc->sCmn.first_frame_after_reset == 0 ) { /* Threshold for pitch estimator */ - thrhld_Q15 = SILK_FIX_CONST( 0.6, 15 ); - thrhld_Q15 = silk_SMLABB( thrhld_Q15, SILK_FIX_CONST( -0.004, 15 ), psEnc->sCmn.pitchEstimationLPCOrder ); - thrhld_Q15 = silk_SMLABB( thrhld_Q15, SILK_FIX_CONST( -0.1, 7 ), psEnc->sCmn.speech_activity_Q8 ); - thrhld_Q15 = silk_SMLABB( thrhld_Q15, SILK_FIX_CONST( -0.15, 15 ), silk_RSHIFT( psEnc->sCmn.prevSignalType, 1 ) ); - thrhld_Q15 = silk_SMLAWB( thrhld_Q15, SILK_FIX_CONST( -0.1, 16 ), psEnc->sCmn.input_tilt_Q15 ); - thrhld_Q15 = silk_SAT16( thrhld_Q15 ); + thrhld_Q13 = SILK_FIX_CONST( 0.6, 13 ); + thrhld_Q13 = silk_SMLABB( thrhld_Q13, SILK_FIX_CONST( -0.004, 13 ), psEnc->sCmn.pitchEstimationLPCOrder ); + thrhld_Q13 = silk_SMLAWB( thrhld_Q13, SILK_FIX_CONST( -0.1, 21 ), psEnc->sCmn.speech_activity_Q8 ); + thrhld_Q13 = silk_SMLABB( thrhld_Q13, SILK_FIX_CONST( -0.15, 13 ), silk_RSHIFT( psEnc->sCmn.prevSignalType, 1 ) ); + thrhld_Q13 = silk_SMLAWB( thrhld_Q13, SILK_FIX_CONST( -0.1, 14 ), psEnc->sCmn.input_tilt_Q15 ); + thrhld_Q13 = silk_SAT16( thrhld_Q13 ); /*****************************************/ /* Call pitch estimator */ /*****************************************/ if( silk_pitch_analysis_core( res, psEncCtrl->pitchL, &psEnc->sCmn.indices.lagIndex, &psEnc->sCmn.indices.contourIndex, &psEnc->LTPCorr_Q15, psEnc->sCmn.prevLag, psEnc->sCmn.pitchEstimationThreshold_Q16, - (opus_int16)thrhld_Q15, psEnc->sCmn.fs_kHz, psEnc->sCmn.pitchEstimationComplexity, psEnc->sCmn.nb_subfr ) == 0 ) + (opus_int)thrhld_Q13, psEnc->sCmn.fs_kHz, psEnc->sCmn.pitchEstimationComplexity, psEnc->sCmn.nb_subfr ) == 0 ) { psEnc->sCmn.indices.signalType = TYPE_VOICED; } else { @@ -134,4 +139,5 @@ void silk_find_pitch_lags_FIX( psEnc->sCmn.indices.contourIndex = 0; psEnc->LTPCorr_Q15 = 0; } + RESTORE_STACK; } diff --git a/silk/fixed/find_pred_coefs_FIX.c b/silk/fixed/find_pred_coefs_FIX.c index 997989b..70d0279 100644 --- a/silk/fixed/find_pred_coefs_FIX.c +++ b/silk/fixed/find_pred_coefs_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE. #endif #include "main_FIX.h" +#include "stack_alloc.h" void silk_find_pred_coefs_FIX( silk_encoder_state_FIX *psEnc, /* I/O encoder state */ @@ -40,13 +41,14 @@ void silk_find_pred_coefs_FIX( ) { opus_int i; - opus_int32 WLTP[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ]; opus_int32 invGains_Q16[ MAX_NB_SUBFR ], local_gains[ MAX_NB_SUBFR ], Wght_Q15[ MAX_NB_SUBFR ]; opus_int16 NLSF_Q15[ MAX_LPC_ORDER ]; const opus_int16 *x_ptr; - opus_int16 *x_pre_ptr, LPC_in_pre[ MAX_NB_SUBFR * MAX_LPC_ORDER + MAX_FRAME_LENGTH ]; + opus_int16 *x_pre_ptr; + VARDECL( opus_int16, LPC_in_pre ); opus_int32 tmp, min_gain_Q16, minInvGain_Q30; opus_int LTP_corrs_rshift[ MAX_NB_SUBFR ]; + SAVE_STACK; /* weighting for weighted least squares */ min_gain_Q16 = silk_int32_MAX >> 6; @@ -71,12 +73,19 @@ void silk_find_pred_coefs_FIX( local_gains[ i ] = silk_DIV32( ( (opus_int32)1 << 16 ), invGains_Q16[ i ] ); } + ALLOC( LPC_in_pre, + psEnc->sCmn.nb_subfr * psEnc->sCmn.predictLPCOrder + + psEnc->sCmn.frame_length, opus_int16 ); if( psEnc->sCmn.indices.signalType == TYPE_VOICED ) { + VARDECL( opus_int32, WLTP ); + /**********/ /* VOICED */ /**********/ silk_assert( psEnc->sCmn.ltp_mem_length - psEnc->sCmn.predictLPCOrder >= psEncCtrl->pitchL[ 0 ] + LTP_ORDER / 2 ); + ALLOC( WLTP, psEnc->sCmn.nb_subfr * LTP_ORDER * LTP_ORDER, opus_int32 ); + /* LTP analysis */ silk_find_LTP_FIX( psEncCtrl->LTPCoef_Q14, WLTP, &psEncCtrl->LTPredCodGain_Q7, res_pitch, psEncCtrl->pitchL, Wght_Q15, psEnc->sCmn.subfr_length, @@ -133,4 +142,5 @@ void silk_find_pred_coefs_FIX( /* Copy to prediction struct for use in next frame for interpolation */ silk_memcpy( psEnc->sCmn.prev_NLSFq_Q15, NLSF_Q15, sizeof( psEnc->sCmn.prev_NLSFq_Q15 ) ); + RESTORE_STACK; } diff --git a/silk/fixed/k2a_FIX.c b/silk/fixed/k2a_FIX.c index cadc927..5fee599 100644 --- a/silk/fixed/k2a_FIX.c +++ b/silk/fixed/k2a_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/k2a_Q16_FIX.c b/silk/fixed/k2a_Q16_FIX.c index f96f306..3b03987 100644 --- a/silk/fixed/k2a_Q16_FIX.c +++ b/silk/fixed/k2a_Q16_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/main_FIX.h b/silk/fixed/main_FIX.h index 369b31e..d999b13 100644 --- a/silk/fixed/main_FIX.h +++ b/silk/fixed/main_FIX.h @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/noise_shape_analysis_FIX.c b/silk/fixed/noise_shape_analysis_FIX.c index d230e48..b97881b 100644 --- a/silk/fixed/noise_shape_analysis_FIX.c +++ b/silk/fixed/noise_shape_analysis_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE. #endif #include "main_FIX.h" +#include "stack_alloc.h" #include "tuning_parameters.h" /* Compute gain to make warped filter coefficients have a zero mean log frequency response on a */ @@ -156,8 +157,9 @@ void silk_noise_shape_analysis_FIX( opus_int32 refl_coef_Q16[ MAX_SHAPE_LPC_ORDER ]; opus_int32 AR1_Q24[ MAX_SHAPE_LPC_ORDER ]; opus_int32 AR2_Q24[ MAX_SHAPE_LPC_ORDER ]; - opus_int16 x_windowed[ SHAPE_LPC_WIN_MAX ]; + VARDECL( opus_int16, x_windowed ); const opus_int16 *x_ptr, *pitch_res_ptr; + SAVE_STACK; /* Point to start of first LPC analysis block */ x_ptr = x - psEnc->sCmn.la_shape; @@ -258,6 +260,7 @@ void silk_noise_shape_analysis_FIX( /********************************************/ /* Compute noise shaping AR coefs and gains */ /********************************************/ + ALLOC( x_windowed, psEnc->sCmn.shapeWinLength, opus_int16 ); for( k = 0; k < psEnc->sCmn.nb_subfr; k++ ) { /* Apply window: sine slope followed by flat part followed by cosine slope */ opus_int shift, slope_part, flat_part; @@ -437,4 +440,5 @@ void silk_noise_shape_analysis_FIX( psEncCtrl->HarmShapeGain_Q14[ k ] = ( opus_int )silk_RSHIFT_ROUND( psShapeSt->HarmShapeGain_smth_Q16, 2 ); psEncCtrl->Tilt_Q14[ k ] = ( opus_int )silk_RSHIFT_ROUND( psShapeSt->Tilt_smth_Q16, 2 ); } + RESTORE_STACK; } diff --git a/silk/fixed/pitch_analysis_core_FIX.c b/silk/fixed/pitch_analysis_core_FIX.c index d43f444..b6bc0bb 100644 --- a/silk/fixed/pitch_analysis_core_FIX.c +++ b/silk/fixed/pitch_analysis_core_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -34,15 +34,30 @@ POSSIBILITY OF SUCH DAMAGE. ********************************************************** */ #include "SigProc_FIX.h" #include "pitch_est_defines.h" +#include "stack_alloc.h" #include "debug.h" +#include "pitch.h" #define SCRATCH_SIZE 22 +#define SF_LENGTH_4KHZ ( PE_SUBFR_LENGTH_MS * 4 ) +#define SF_LENGTH_8KHZ ( PE_SUBFR_LENGTH_MS * 8 ) +#define MIN_LAG_4KHZ ( PE_MIN_LAG_MS * 4 ) +#define MIN_LAG_8KHZ ( PE_MIN_LAG_MS * 8 ) +#define MAX_LAG_4KHZ ( PE_MAX_LAG_MS * 4 ) +#define MAX_LAG_8KHZ ( PE_MAX_LAG_MS * 8 - 1 ) +#define CSTRIDE_4KHZ ( MAX_LAG_4KHZ + 1 - MIN_LAG_4KHZ ) +#define CSTRIDE_8KHZ ( MAX_LAG_8KHZ + 3 - ( MIN_LAG_8KHZ - 2 ) ) +#define D_COMP_MIN ( MIN_LAG_8KHZ - 3 ) +#define D_COMP_MAX ( MAX_LAG_8KHZ + 4 ) +#define D_COMP_STRIDE ( D_COMP_MAX - D_COMP_MIN ) + +typedef opus_int32 silk_pe_stage3_vals[ PE_NB_STAGE3_LAGS ]; /************************************************************/ /* Internally used functions */ /************************************************************/ -void silk_P_Ana_calc_corr_st3( - opus_int32 cross_corr_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ],/* (O) 3 DIM correlation array */ +static void silk_P_Ana_calc_corr_st3( + silk_pe_stage3_vals cross_corr_st3[], /* O 3 DIM correlation array */ const opus_int16 frame[], /* I vector to correlate */ opus_int start_lag, /* I lag offset to search around */ opus_int sf_length, /* I length of a 5 ms subframe */ @@ -50,8 +65,8 @@ void silk_P_Ana_calc_corr_st3( opus_int complexity /* I Complexity setting */ ); -void silk_P_Ana_calc_energy_st3( - opus_int32 energies_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ],/* (O) 3 DIM energy array */ +static void silk_P_Ana_calc_energy_st3( + silk_pe_stage3_vals energies_st3[], /* O 3 DIM energy array */ const opus_int16 frame[], /* I vector to calc energy in */ opus_int start_lag, /* I lag offset to search around */ opus_int sf_length, /* I length of one 5 ms subframe */ @@ -59,12 +74,6 @@ void silk_P_Ana_calc_energy_st3( opus_int complexity /* I Complexity setting */ ); -opus_int32 silk_P_Ana_find_scaling( - const opus_int16 *frame, - const opus_int frame_length, - const opus_int sum_sqr_len -); - /*************************************************************/ /* FIXED POINT CORE PITCH ANALYSIS FUNCTION */ /*************************************************************/ @@ -76,36 +85,37 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 opus_int *LTPCorr_Q15, /* I/O Normalized correlation; input: value from previous frame */ opus_int prevLag, /* I Last lag of previous frame; set to zero is unvoiced */ const opus_int32 search_thres1_Q16, /* I First stage threshold for lag candidates 0 - 1 */ - const opus_int search_thres2_Q15, /* I Final threshold for lag candidates 0 - 1 */ + const opus_int search_thres2_Q13, /* I Final threshold for lag candidates 0 - 1 */ const opus_int Fs_kHz, /* I Sample frequency (kHz) */ const opus_int complexity, /* I Complexity setting, 0-2, where 2 is highest */ const opus_int nb_subfr /* I number of 5 ms subframes */ ) { - opus_int16 frame_8kHz[ PE_MAX_FRAME_LENGTH_ST_2 ]; - opus_int16 frame_4kHz[ PE_MAX_FRAME_LENGTH_ST_1 ]; + VARDECL( opus_int16, frame_8kHz ); + VARDECL( opus_int16, frame_4kHz ); opus_int32 filt_state[ 6 ]; - opus_int32 scratch_mem[ 3 * PE_MAX_FRAME_LENGTH ]; - opus_int16 *input_frame_ptr; + const opus_int16 *input_frame_ptr; opus_int i, k, d, j; - opus_int16 C[ PE_MAX_NB_SUBFR ][ ( PE_MAX_LAG >> 1 ) + 5 ]; + VARDECL( opus_int16, C ); + VARDECL( opus_int32, xcorr32 ); const opus_int16 *target_ptr, *basis_ptr; opus_int32 cross_corr, normalizer, energy, shift, energy_basis, energy_target; opus_int d_srch[ PE_D_SRCH_LENGTH ], Cmax, length_d_srch, length_d_comp; - opus_int16 d_comp[ ( PE_MAX_LAG >> 1 ) + 5 ]; - opus_int32 sum, threshold, temp32, lag_counter; + VARDECL( opus_int16, d_comp ); + opus_int32 sum, threshold, lag_counter; opus_int CBimax, CBimax_new, CBimax_old, lag, start_lag, end_lag, lag_new; opus_int32 CC[ PE_NB_CBKS_STAGE2_EXT ], CCmax, CCmax_b, CCmax_new_b, CCmax_new; - opus_int32 energies_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ]; - opus_int32 crosscorr_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ]; - opus_int frame_length, frame_length_8kHz, frame_length_4kHz, max_sum_sq_length; - opus_int sf_length, sf_length_8kHz, sf_length_4kHz; - opus_int min_lag, min_lag_8kHz, min_lag_4kHz; - opus_int max_lag, max_lag_8kHz, max_lag_4kHz; - opus_int32 contour_bias_Q20, diff, lz, lshift; + VARDECL( silk_pe_stage3_vals, energies_st3 ); + VARDECL( silk_pe_stage3_vals, cross_corr_st3 ); + opus_int frame_length, frame_length_8kHz, frame_length_4kHz; + opus_int sf_length; + opus_int min_lag; + opus_int max_lag; + opus_int32 contour_bias_Q15, diff; opus_int nb_cbk_search, cbk_size; - opus_int32 delta_lag_log2_sqr_Q7, lag_log2_Q7, prevLag_log2_Q7, prev_lag_bias_Q15, corr_thres_Q15; + opus_int32 delta_lag_log2_sqr_Q7, lag_log2_Q7, prevLag_log2_Q7, prev_lag_bias_Q13; const opus_int8 *Lag_CB_ptr; + SAVE_STACK; /* Check for valid sampling frequency */ silk_assert( Fs_kHz == 8 || Fs_kHz == 12 || Fs_kHz == 16 ); @@ -114,25 +124,18 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 silk_assert( complexity <= SILK_PE_MAX_COMPLEX ); silk_assert( search_thres1_Q16 >= 0 && search_thres1_Q16 <= (1<<16) ); - silk_assert( search_thres2_Q15 >= 0 && search_thres2_Q15 <= (1<<15) ); + silk_assert( search_thres2_Q13 >= 0 && search_thres2_Q13 <= (1<<13) ); /* Set up frame lengths max / min lag for the sampling frequency */ frame_length = ( PE_LTP_MEM_LENGTH_MS + nb_subfr * PE_SUBFR_LENGTH_MS ) * Fs_kHz; frame_length_4kHz = ( PE_LTP_MEM_LENGTH_MS + nb_subfr * PE_SUBFR_LENGTH_MS ) * 4; frame_length_8kHz = ( PE_LTP_MEM_LENGTH_MS + nb_subfr * PE_SUBFR_LENGTH_MS ) * 8; sf_length = PE_SUBFR_LENGTH_MS * Fs_kHz; - sf_length_4kHz = PE_SUBFR_LENGTH_MS * 4; - sf_length_8kHz = PE_SUBFR_LENGTH_MS * 8; min_lag = PE_MIN_LAG_MS * Fs_kHz; - min_lag_4kHz = PE_MIN_LAG_MS * 4; - min_lag_8kHz = PE_MIN_LAG_MS * 8; max_lag = PE_MAX_LAG_MS * Fs_kHz - 1; - max_lag_4kHz = PE_MAX_LAG_MS * 4; - max_lag_8kHz = PE_MAX_LAG_MS * 8 - 1; - - silk_memset( C, 0, sizeof( opus_int16 ) * nb_subfr * ( ( PE_MAX_LAG >> 1 ) + 5) ); /* Resample from input sampled at Fs_kHz to 8 kHz */ + ALLOC( frame_8kHz, frame_length_8kHz, opus_int16 ); if( Fs_kHz == 16 ) { silk_memset( filt_state, 0, 2 * sizeof( opus_int32 ) ); silk_resampler_down2( filt_state, frame_8kHz, frame, frame_length ); @@ -146,6 +149,7 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 /* Decimate again to 4 kHz */ silk_memset( filt_state, 0, 2 * sizeof( opus_int32 ) );/* Set state to zero */ + ALLOC( frame_4kHz, frame_length_4kHz, opus_int16 ); silk_resampler_down2( filt_state, frame_4kHz, frame_8kHz, frame_length_8kHz ); /* Low-pass filter */ @@ -159,9 +163,9 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 *******************************************************************************/ /* Inner product is calculated with different lengths, so scale for the worst case */ - max_sum_sq_length = silk_max_32( sf_length_8kHz, silk_LSHIFT( sf_length_4kHz, 2 ) ); - shift = silk_P_Ana_find_scaling( frame_4kHz, frame_length_4kHz, max_sum_sq_length ); + silk_sum_sqr_shift( &energy, &shift, frame_4kHz, frame_length_4kHz ); if( shift > 0 ) { + shift = silk_RSHIFT( shift, 1 ); for( i = 0; i < frame_length_4kHz; i++ ) { frame_4kHz[ i ] = silk_RSHIFT( frame_4kHz[ i ], shift ); } @@ -170,94 +174,93 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 /****************************************************************************** * FIRST STAGE, operating in 4 khz ******************************************************************************/ - target_ptr = &frame_4kHz[ silk_LSHIFT( sf_length_4kHz, 2 ) ]; + ALLOC( C, nb_subfr * CSTRIDE_8KHZ, opus_int16 ); + ALLOC( xcorr32, MAX_LAG_4KHZ-MIN_LAG_4KHZ+1, opus_int32 ); + silk_memset( C, 0, (nb_subfr >> 1) * CSTRIDE_4KHZ * sizeof( opus_int16 ) ); + target_ptr = &frame_4kHz[ silk_LSHIFT( SF_LENGTH_4KHZ, 2 ) ]; for( k = 0; k < nb_subfr >> 1; k++ ) { /* Check that we are within range of the array */ silk_assert( target_ptr >= frame_4kHz ); - silk_assert( target_ptr + sf_length_8kHz <= frame_4kHz + frame_length_4kHz ); + silk_assert( target_ptr + SF_LENGTH_8KHZ <= frame_4kHz + frame_length_4kHz ); - basis_ptr = target_ptr - min_lag_4kHz; + basis_ptr = target_ptr - MIN_LAG_4KHZ; /* Check that we are within range of the array */ silk_assert( basis_ptr >= frame_4kHz ); - silk_assert( basis_ptr + sf_length_8kHz <= frame_4kHz + frame_length_4kHz ); + silk_assert( basis_ptr + SF_LENGTH_8KHZ <= frame_4kHz + frame_length_4kHz ); + + celt_pitch_xcorr( target_ptr, target_ptr - MAX_LAG_4KHZ, xcorr32, SF_LENGTH_8KHZ, MAX_LAG_4KHZ - MIN_LAG_4KHZ + 1 ); /* Calculate first vector products before loop */ - cross_corr = silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz ); - normalizer = silk_inner_prod_aligned( basis_ptr, basis_ptr, sf_length_8kHz ); - normalizer = silk_ADD_SAT32( normalizer, silk_SMULBB( sf_length_8kHz, 4000 ) ); + cross_corr = xcorr32[ MAX_LAG_4KHZ - MIN_LAG_4KHZ ]; + normalizer = silk_inner_prod_aligned( target_ptr, target_ptr, SF_LENGTH_8KHZ ); + normalizer = silk_ADD32( normalizer, silk_inner_prod_aligned( basis_ptr, basis_ptr, SF_LENGTH_8KHZ ) ); + normalizer = silk_ADD32( normalizer, silk_SMULBB( SF_LENGTH_8KHZ, 4000 ) ); - temp32 = silk_DIV32( cross_corr, silk_SQRT_APPROX( normalizer ) + 1 ); - C[ k ][ min_lag_4kHz ] = (opus_int16)silk_SAT16( temp32 ); /* Q0 */ + matrix_ptr( C, k, 0, CSTRIDE_4KHZ ) = + (opus_int16)silk_DIV32_varQ( cross_corr, normalizer, 13 + 1 ); /* Q13 */ /* From now on normalizer is computed recursively */ - for( d = min_lag_4kHz + 1; d <= max_lag_4kHz; d++ ) { + for( d = MIN_LAG_4KHZ + 1; d <= MAX_LAG_4KHZ; d++ ) { basis_ptr--; /* Check that we are within range of the array */ silk_assert( basis_ptr >= frame_4kHz ); - silk_assert( basis_ptr + sf_length_8kHz <= frame_4kHz + frame_length_4kHz ); + silk_assert( basis_ptr + SF_LENGTH_8KHZ <= frame_4kHz + frame_length_4kHz ); - cross_corr = silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz ); + cross_corr = xcorr32[ MAX_LAG_4KHZ - d ]; /* Add contribution of new sample and remove contribution from oldest sample */ - normalizer += + normalizer = silk_ADD32( normalizer, silk_SMULBB( basis_ptr[ 0 ], basis_ptr[ 0 ] ) - - silk_SMULBB( basis_ptr[ sf_length_8kHz ], basis_ptr[ sf_length_8kHz ] ); + silk_SMULBB( basis_ptr[ SF_LENGTH_8KHZ ], basis_ptr[ SF_LENGTH_8KHZ ] ) ); - temp32 = silk_DIV32( cross_corr, silk_SQRT_APPROX( normalizer ) + 1 ); - C[ k ][ d ] = (opus_int16)silk_SAT16( temp32 ); /* Q0 */ + matrix_ptr( C, k, d - MIN_LAG_4KHZ, CSTRIDE_4KHZ) = + (opus_int16)silk_DIV32_varQ( cross_corr, normalizer, 13 + 1 ); /* Q13 */ } /* Update target pointer */ - target_ptr += sf_length_8kHz; + target_ptr += SF_LENGTH_8KHZ; } /* Combine two subframes into single correlation measure and apply short-lag bias */ if( nb_subfr == PE_MAX_NB_SUBFR ) { - for( i = max_lag_4kHz; i >= min_lag_4kHz; i-- ) { - sum = (opus_int32)C[ 0 ][ i ] + (opus_int32)C[ 1 ][ i ]; /* Q0 */ - silk_assert( silk_RSHIFT( sum, 1 ) == silk_SAT16( silk_RSHIFT( sum, 1 ) ) ); - sum = silk_RSHIFT( sum, 1 ); /* Q-1 */ - silk_assert( silk_LSHIFT( (opus_int32)-i, 4 ) == silk_SAT16( silk_LSHIFT( (opus_int32)-i, 4 ) ) ); - sum = silk_SMLAWB( sum, sum, silk_LSHIFT( -i, 4 ) ); /* Q-1 */ - silk_assert( sum == silk_SAT16( sum ) ); - C[ 0 ][ i ] = (opus_int16)sum; /* Q-1 */ + for( i = MAX_LAG_4KHZ; i >= MIN_LAG_4KHZ; i-- ) { + sum = (opus_int32)matrix_ptr( C, 0, i - MIN_LAG_4KHZ, CSTRIDE_4KHZ ) + + (opus_int32)matrix_ptr( C, 1, i - MIN_LAG_4KHZ, CSTRIDE_4KHZ ); /* Q14 */ + sum = silk_SMLAWB( sum, sum, silk_LSHIFT( -i, 4 ) ); /* Q14 */ + C[ i - MIN_LAG_4KHZ ] = (opus_int16)sum; /* Q14 */ } } else { /* Only short-lag bias */ - for( i = max_lag_4kHz; i >= min_lag_4kHz; i-- ) { - sum = (opus_int32)C[ 0 ][ i ]; - sum = silk_SMLAWB( sum, sum, silk_LSHIFT( -i, 4 ) ); /* Q-1 */ - C[ 0 ][ i ] = (opus_int16)sum; /* Q-1 */ + for( i = MAX_LAG_4KHZ; i >= MIN_LAG_4KHZ; i-- ) { + sum = silk_LSHIFT( (opus_int32)C[ i - MIN_LAG_4KHZ ], 1 ); /* Q14 */ + sum = silk_SMLAWB( sum, sum, silk_LSHIFT( -i, 4 ) ); /* Q14 */ + C[ i - MIN_LAG_4KHZ ] = (opus_int16)sum; /* Q14 */ } } /* Sort */ length_d_srch = silk_ADD_LSHIFT32( 4, complexity, 1 ); silk_assert( 3 * length_d_srch <= PE_D_SRCH_LENGTH ); - silk_insertion_sort_decreasing_int16( &C[ 0 ][ min_lag_4kHz ], d_srch, max_lag_4kHz - min_lag_4kHz + 1, length_d_srch ); + silk_insertion_sort_decreasing_int16( C, d_srch, CSTRIDE_4KHZ, + length_d_srch ); /* Escape if correlation is very low already here */ - target_ptr = &frame_4kHz[ silk_SMULBB( sf_length_4kHz, nb_subfr ) ]; - energy = silk_inner_prod_aligned( target_ptr, target_ptr, silk_LSHIFT( sf_length_4kHz, 2 ) ); - energy = silk_ADD_SAT32( energy, 1000 ); /* Q0 */ - Cmax = (opus_int)C[ 0 ][ min_lag_4kHz ]; /* Q-1 */ - threshold = silk_SMULBB( Cmax, Cmax ); /* Q-2 */ - - /* Compare in Q-2 domain */ - if( silk_RSHIFT( energy, 4 + 2 ) > threshold ) { + Cmax = (opus_int)C[ 0 ]; /* Q14 */ + if( Cmax < SILK_FIX_CONST( 0.2, 14 ) ) { silk_memset( pitch_out, 0, nb_subfr * sizeof( opus_int ) ); *LTPCorr_Q15 = 0; *lagIndex = 0; *contourIndex = 0; + RESTORE_STACK; return 1; } threshold = silk_SMULWB( search_thres1_Q16, Cmax ); for( i = 0; i < length_d_srch; i++ ) { /* Convert to 8 kHz indices for the sorted correlation that exceeds the threshold */ - if( C[ 0 ][ min_lag_4kHz + i ] > threshold ) { - d_srch[ i ] = silk_LSHIFT( d_srch[ i ] + min_lag_4kHz, 1 ); + if( C[ i ] > threshold ) { + d_srch[ i ] = silk_LSHIFT( d_srch[ i ] + MIN_LAG_4KHZ, 1 ); } else { length_d_srch = i; break; @@ -265,34 +268,37 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 } silk_assert( length_d_srch > 0 ); - for( i = min_lag_8kHz - 5; i < max_lag_8kHz + 5; i++ ) { - d_comp[ i ] = 0; + ALLOC( d_comp, D_COMP_STRIDE, opus_int16 ); + for( i = D_COMP_MIN; i < D_COMP_MAX; i++ ) { + d_comp[ i - D_COMP_MIN ] = 0; } for( i = 0; i < length_d_srch; i++ ) { - d_comp[ d_srch[ i ] ] = 1; + d_comp[ d_srch[ i ] - D_COMP_MIN ] = 1; } /* Convolution */ - for( i = max_lag_8kHz + 3; i >= min_lag_8kHz; i-- ) { - d_comp[ i ] += d_comp[ i - 1 ] + d_comp[ i - 2 ]; + for( i = D_COMP_MAX - 1; i >= MIN_LAG_8KHZ; i-- ) { + d_comp[ i - D_COMP_MIN ] += + d_comp[ i - 1 - D_COMP_MIN ] + d_comp[ i - 2 - D_COMP_MIN ]; } length_d_srch = 0; - for( i = min_lag_8kHz; i < max_lag_8kHz + 1; i++ ) { - if( d_comp[ i + 1 ] > 0 ) { + for( i = MIN_LAG_8KHZ; i < MAX_LAG_8KHZ + 1; i++ ) { + if( d_comp[ i + 1 - D_COMP_MIN ] > 0 ) { d_srch[ length_d_srch ] = i; length_d_srch++; } } /* Convolution */ - for( i = max_lag_8kHz + 3; i >= min_lag_8kHz; i-- ) { - d_comp[ i ] += d_comp[ i - 1 ] + d_comp[ i - 2 ] + d_comp[ i - 3 ]; + for( i = D_COMP_MAX - 1; i >= MIN_LAG_8KHZ; i-- ) { + d_comp[ i - D_COMP_MIN ] += d_comp[ i - 1 - D_COMP_MIN ] + + d_comp[ i - 2 - D_COMP_MIN ] + d_comp[ i - 3 - D_COMP_MIN ]; } length_d_comp = 0; - for( i = min_lag_8kHz; i < max_lag_8kHz + 4; i++ ) { - if( d_comp[ i ] > 0 ) { + for( i = MIN_LAG_8KHZ; i < D_COMP_MAX; i++ ) { + if( d_comp[ i - D_COMP_MIN ] > 0 ) { d_comp[ length_d_comp ] = i - 2; length_d_comp++; } @@ -306,8 +312,9 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 ** Scale signal down to avoid correlations measures from overflowing *******************************************************************************/ /* find scaling as max scaling for each subframe */ - shift = silk_P_Ana_find_scaling( frame_8kHz, frame_length_8kHz, sf_length_8kHz ); + silk_sum_sqr_shift( &energy, &shift, frame_8kHz, frame_length_8kHz ); if( shift > 0 ) { + shift = silk_RSHIFT( shift, 1 ); for( i = 0; i < frame_length_8kHz; i++ ) { frame_8kHz[ i ] = silk_RSHIFT( frame_8kHz[ i ], shift ); } @@ -316,43 +323,37 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 /********************************************************************************* * Find energy of each subframe projected onto its history, for a range of delays *********************************************************************************/ - silk_memset( C, 0, PE_MAX_NB_SUBFR * ( ( PE_MAX_LAG >> 1 ) + 5 ) * sizeof( opus_int16 ) ); + silk_memset( C, 0, nb_subfr * CSTRIDE_8KHZ * sizeof( opus_int16 ) ); target_ptr = &frame_8kHz[ PE_LTP_MEM_LENGTH_MS * 8 ]; for( k = 0; k < nb_subfr; k++ ) { /* Check that we are within range of the array */ silk_assert( target_ptr >= frame_8kHz ); - silk_assert( target_ptr + sf_length_8kHz <= frame_8kHz + frame_length_8kHz ); + silk_assert( target_ptr + SF_LENGTH_8KHZ <= frame_8kHz + frame_length_8kHz ); - energy_target = silk_inner_prod_aligned( target_ptr, target_ptr, sf_length_8kHz ); + energy_target = silk_ADD32( silk_inner_prod_aligned( target_ptr, target_ptr, SF_LENGTH_8KHZ ), 1 ); for( j = 0; j < length_d_comp; j++ ) { d = d_comp[ j ]; basis_ptr = target_ptr - d; /* Check that we are within range of the array */ silk_assert( basis_ptr >= frame_8kHz ); - silk_assert( basis_ptr + sf_length_8kHz <= frame_8kHz + frame_length_8kHz ); + silk_assert( basis_ptr + SF_LENGTH_8KHZ <= frame_8kHz + frame_length_8kHz ); - cross_corr = silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz ); - energy_basis = silk_inner_prod_aligned( basis_ptr, basis_ptr, sf_length_8kHz ); + cross_corr = silk_inner_prod_aligned( target_ptr, basis_ptr, SF_LENGTH_8KHZ ); if( cross_corr > 0 ) { - energy = silk_max( energy_target, energy_basis ); /* Find max to make sure first division < 1.0 */ - lz = silk_CLZ32( cross_corr ); - lshift = silk_LIMIT_32( lz - 1, 0, 15 ); - temp32 = silk_DIV32( silk_LSHIFT( cross_corr, lshift ), silk_RSHIFT( energy, 15 - lshift ) + 1 ); /* Q15 */ - silk_assert( temp32 == silk_SAT16( temp32 ) ); - temp32 = silk_SMULWB( cross_corr, temp32 ); /* Q(-1), cc * ( cc / max(b, t) ) */ - temp32 = silk_ADD_SAT32( temp32, temp32 ); /* Q(0) */ - lz = silk_CLZ32( temp32 ); - lshift = silk_LIMIT_32( lz - 1, 0, 15 ); - energy = silk_min( energy_target, energy_basis ); - C[ k ][ d ] = silk_DIV32( silk_LSHIFT( temp32, lshift ), silk_RSHIFT( energy, 15 - lshift ) + 1 ); /* Q15*/ + energy_basis = silk_inner_prod_aligned( basis_ptr, basis_ptr, SF_LENGTH_8KHZ ); + matrix_ptr( C, k, d - ( MIN_LAG_8KHZ - 2 ), CSTRIDE_8KHZ ) = + (opus_int16)silk_DIV32_varQ( cross_corr, + silk_ADD32( energy_target, + energy_basis ), + 13 + 1 ); /* Q13 */ } else { - C[ k ][ d ] = 0; + matrix_ptr( C, k, d - ( MIN_LAG_8KHZ - 2 ), CSTRIDE_8KHZ ) = 0; } } - target_ptr += sf_length_8kHz; + target_ptr += SF_LENGTH_8KHZ; } /* search over lag range and lags codebook */ @@ -374,7 +375,7 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 } else { prevLag_log2_Q7 = 0; } - silk_assert( search_thres2_Q15 == silk_SAT16( search_thres2_Q15 ) ); + silk_assert( search_thres2_Q13 == silk_SAT16( search_thres2_Q13 ) ); /* Set up stage 2 codebook based on number of subframes */ if( nb_subfr == PE_MAX_NB_SUBFR ) { cbk_size = PE_NB_CBKS_STAGE2_EXT; @@ -385,12 +386,10 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 } else { nb_cbk_search = PE_NB_CBKS_STAGE2; } - corr_thres_Q15 = silk_RSHIFT( silk_SMULBB( search_thres2_Q15, search_thres2_Q15 ), 13 ); } else { cbk_size = PE_NB_CBKS_STAGE2_10MS; Lag_CB_ptr = &silk_CB_lags_stage2_10_ms[ 0 ][ 0 ]; nb_cbk_search = PE_NB_CBKS_STAGE2_10MS; - corr_thres_Q15 = silk_RSHIFT( silk_SMULBB( search_thres2_Q15, search_thres2_Q15 ), 14 ); } for( k = 0; k < length_d_srch; k++ ) { @@ -398,8 +397,13 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 for( j = 0; j < nb_cbk_search; j++ ) { CC[ j ] = 0; for( i = 0; i < nb_subfr; i++ ) { + opus_int d_subfr; /* Try all codebooks */ - CC[ j ] = CC[ j ] + (opus_int32)C[ i ][ d + matrix_ptr( Lag_CB_ptr, i, j, cbk_size )]; + d_subfr = d + matrix_ptr( Lag_CB_ptr, i, j, cbk_size ); + CC[ j ] = CC[ j ] + + (opus_int32)matrix_ptr( C, i, + d_subfr - ( MIN_LAG_8KHZ - 2 ), + CSTRIDE_8KHZ ); } } /* Find best codebook */ @@ -413,25 +417,25 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 } /* Bias towards shorter lags */ - lag_log2_Q7 = silk_lin2log( (opus_int32)d ); /* Q7 */ + lag_log2_Q7 = silk_lin2log( d ); /* Q7 */ silk_assert( lag_log2_Q7 == silk_SAT16( lag_log2_Q7 ) ); - silk_assert( nb_subfr * SILK_FIX_CONST( PE_SHORTLAG_BIAS, 15 ) == silk_SAT16( nb_subfr * SILK_FIX_CONST( PE_SHORTLAG_BIAS, 15 ) ) ); - CCmax_new_b = CCmax_new - silk_RSHIFT( silk_SMULBB( nb_subfr * SILK_FIX_CONST( PE_SHORTLAG_BIAS, 15 ), lag_log2_Q7 ), 7 ); /* Q15 */ + silk_assert( nb_subfr * SILK_FIX_CONST( PE_SHORTLAG_BIAS, 13 ) == silk_SAT16( nb_subfr * SILK_FIX_CONST( PE_SHORTLAG_BIAS, 13 ) ) ); + CCmax_new_b = CCmax_new - silk_RSHIFT( silk_SMULBB( nb_subfr * SILK_FIX_CONST( PE_SHORTLAG_BIAS, 13 ), lag_log2_Q7 ), 7 ); /* Q13 */ /* Bias towards previous lag */ - silk_assert( nb_subfr * SILK_FIX_CONST( PE_PREVLAG_BIAS, 15 ) == silk_SAT16( nb_subfr * SILK_FIX_CONST( PE_PREVLAG_BIAS, 15 ) ) ); + silk_assert( nb_subfr * SILK_FIX_CONST( PE_PREVLAG_BIAS, 13 ) == silk_SAT16( nb_subfr * SILK_FIX_CONST( PE_PREVLAG_BIAS, 13 ) ) ); if( prevLag > 0 ) { delta_lag_log2_sqr_Q7 = lag_log2_Q7 - prevLag_log2_Q7; silk_assert( delta_lag_log2_sqr_Q7 == silk_SAT16( delta_lag_log2_sqr_Q7 ) ); delta_lag_log2_sqr_Q7 = silk_RSHIFT( silk_SMULBB( delta_lag_log2_sqr_Q7, delta_lag_log2_sqr_Q7 ), 7 ); - prev_lag_bias_Q15 = silk_RSHIFT( silk_SMULBB( nb_subfr * SILK_FIX_CONST( PE_PREVLAG_BIAS, 15 ), *LTPCorr_Q15 ), 15 ); /* Q15 */ - prev_lag_bias_Q15 = silk_DIV32( silk_MUL( prev_lag_bias_Q15, delta_lag_log2_sqr_Q7 ), delta_lag_log2_sqr_Q7 + ( 1 << 6 ) ); - CCmax_new_b -= prev_lag_bias_Q15; /* Q15 */ + prev_lag_bias_Q13 = silk_RSHIFT( silk_SMULBB( nb_subfr * SILK_FIX_CONST( PE_PREVLAG_BIAS, 13 ), *LTPCorr_Q15 ), 15 ); /* Q13 */ + prev_lag_bias_Q13 = silk_DIV32( silk_MUL( prev_lag_bias_Q13, delta_lag_log2_sqr_Q7 ), delta_lag_log2_sqr_Q7 + SILK_FIX_CONST( 0.5, 7 ) ); + CCmax_new_b -= prev_lag_bias_Q13; /* Q13 */ } if( CCmax_new_b > CCmax_b && /* Find maximum biased correlation */ - CCmax_new > corr_thres_Q15 && /* Correlation needs to be high enough to be voiced */ - silk_CB_lags_stage2[ 0 ][ CBimax_new ] <= min_lag_8kHz /* Lag must be in range */ + CCmax_new > silk_SMULBB( nb_subfr, search_thres2_Q13 ) && /* Correlation needs to be high enough to be voiced */ + silk_CB_lags_stage2[ 0 ][ CBimax_new ] <= MIN_LAG_8KHZ /* Lag must be in range */ ) { CCmax_b = CCmax_new_b; CCmax = CCmax_new; @@ -446,24 +450,31 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 *LTPCorr_Q15 = 0; *lagIndex = 0; *contourIndex = 0; + RESTORE_STACK; return 1; } + /* Output normalized correlation */ + *LTPCorr_Q15 = (opus_int)silk_LSHIFT( silk_DIV32_16( CCmax, nb_subfr ), 2 ); + silk_assert( *LTPCorr_Q15 >= 0 ); + if( Fs_kHz > 8 ) { + VARDECL( opus_int16, scratch_mem ); /***************************************************************************/ /* Scale input signal down to avoid correlations measures from overflowing */ /***************************************************************************/ /* find scaling as max scaling for each subframe */ - shift = silk_P_Ana_find_scaling( frame, frame_length, sf_length ); + silk_sum_sqr_shift( &energy, &shift, frame, frame_length ); + ALLOC( scratch_mem, shift > 0 ? frame_length : 0, opus_int16 ); if( shift > 0 ) { /* Move signal to scratch mem because the input signal should be unchanged */ - /* Reuse the 32 bit scratch mem vector, use a 16 bit pointer from now */ - input_frame_ptr = (opus_int16*)scratch_mem; + shift = silk_RSHIFT( shift, 1 ); for( i = 0; i < frame_length; i++ ) { - input_frame_ptr[ i ] = silk_RSHIFT( frame[ i ], shift ); + scratch_mem[ i ] = silk_RSHIFT( frame[ i ], shift ); } + input_frame_ptr = scratch_mem; } else { - input_frame_ptr = (opus_int16*)frame; + input_frame_ptr = frame; } /* Search in original signal */ @@ -483,22 +494,13 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 start_lag = silk_max_int( lag - 2, min_lag ); end_lag = silk_min_int( lag + 2, max_lag ); lag_new = lag; /* to avoid undefined lag */ - CBimax = 0; /* to avoid undefined lag */ - silk_assert( silk_LSHIFT( CCmax, 13 ) >= 0 ); - *LTPCorr_Q15 = (opus_int)silk_SQRT_APPROX( silk_LSHIFT( CCmax, 13 ) ); /* Output normalized correlation */ + CBimax = 0; /* to avoid undefined lag */ CCmax = silk_int32_MIN; /* pitch lags according to second stage */ for( k = 0; k < nb_subfr; k++ ) { pitch_out[ k ] = lag + 2 * silk_CB_lags_stage2[ k ][ CBimax_old ]; } - /* Calculate the correlations and energies needed in stage 3 */ - silk_P_Ana_calc_corr_st3( crosscorr_st3, input_frame_ptr, start_lag, sf_length, nb_subfr, complexity ); - silk_P_Ana_calc_energy_st3( energies_st3, input_frame_ptr, start_lag, sf_length, nb_subfr, complexity ); - - lag_counter = 0; - silk_assert( lag == silk_SAT16( lag ) ); - contour_bias_Q20 = silk_DIV32_16( SILK_FIX_CONST( PE_FLATCONTOUR_BIAS, 20 ), lag ); /* Set up codebook parameters according to complexity setting and frame length */ if( nb_subfr == PE_MAX_NB_SUBFR ) { @@ -510,41 +512,43 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 cbk_size = PE_NB_CBKS_STAGE3_10MS; Lag_CB_ptr = &silk_CB_lags_stage3_10_ms[ 0 ][ 0 ]; } + + /* Calculate the correlations and energies needed in stage 3 */ + ALLOC( energies_st3, nb_subfr * nb_cbk_search, silk_pe_stage3_vals ); + ALLOC( cross_corr_st3, nb_subfr * nb_cbk_search, silk_pe_stage3_vals ); + silk_P_Ana_calc_corr_st3( cross_corr_st3, input_frame_ptr, start_lag, sf_length, nb_subfr, complexity ); + silk_P_Ana_calc_energy_st3( energies_st3, input_frame_ptr, start_lag, sf_length, nb_subfr, complexity ); + + lag_counter = 0; + silk_assert( lag == silk_SAT16( lag ) ); + contour_bias_Q15 = silk_DIV32_16( SILK_FIX_CONST( PE_FLATCONTOUR_BIAS, 15 ), lag ); + + target_ptr = &input_frame_ptr[ PE_LTP_MEM_LENGTH_MS * Fs_kHz ]; + energy_target = silk_ADD32( silk_inner_prod_aligned( target_ptr, target_ptr, nb_subfr * sf_length ), 1 ); for( d = start_lag; d <= end_lag; d++ ) { for( j = 0; j < nb_cbk_search; j++ ) { cross_corr = 0; - energy = 0; + energy = energy_target; for( k = 0; k < nb_subfr; k++ ) { - silk_assert( PE_MAX_NB_SUBFR == 4 ); - energy += silk_RSHIFT( energies_st3[ k ][ j ][ lag_counter ], 2 ); /* use mean, to avoid overflow */ + cross_corr = silk_ADD32( cross_corr, + matrix_ptr( cross_corr_st3, k, j, + nb_cbk_search )[ lag_counter ] ); + energy = silk_ADD32( energy, + matrix_ptr( energies_st3, k, j, + nb_cbk_search )[ lag_counter ] ); silk_assert( energy >= 0 ); - cross_corr += silk_RSHIFT( crosscorr_st3[ k ][ j ][ lag_counter ], 2 ); /* use mean, to avoid overflow */ } if( cross_corr > 0 ) { - /* Divide cross_corr / energy and get result in Q15 */ - lz = silk_CLZ32( cross_corr ); - /* Divide with result in Q13, cross_corr could be larger than energy */ - lshift = silk_LIMIT_32( lz - 1, 0, 13 ); - CCmax_new = silk_DIV32( silk_LSHIFT( cross_corr, lshift ), silk_RSHIFT( energy, 13 - lshift ) + 1 ); - CCmax_new = silk_SAT16( CCmax_new ); - CCmax_new = silk_SMULWB( cross_corr, CCmax_new ); - /* Saturate */ - if( CCmax_new > silk_RSHIFT( silk_int32_MAX, 3 ) ) { - CCmax_new = silk_int32_MAX; - } else { - CCmax_new = silk_LSHIFT( CCmax_new, 3 ); - } + CCmax_new = silk_DIV32_varQ( cross_corr, energy, 13 + 1 ); /* Q13 */ /* Reduce depending on flatness of contour */ - diff = silk_int16_MAX - silk_RSHIFT( silk_MUL( contour_bias_Q20, j ), 5 ); /* Q20 -> Q15 */ + diff = silk_int16_MAX - silk_MUL( contour_bias_Q15, j ); /* Q15 */ silk_assert( diff == silk_SAT16( diff ) ); - CCmax_new = silk_LSHIFT( silk_SMULWB( CCmax_new, diff ), 1 ); + CCmax_new = silk_SMULWB( CCmax_new, diff ); /* Q14 */ } else { CCmax_new = 0; } - if( CCmax_new > CCmax && - ( d + silk_CB_lags_stage3[ 0 ][ j ] ) <= max_lag - ) { + if( CCmax_new > CCmax && ( d + silk_CB_lags_stage3[ 0 ][ j ] ) <= max_lag ) { CCmax = CCmax_new; lag_new = d; CBimax = j; @@ -560,27 +564,35 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 *lagIndex = (opus_int16)( lag_new - min_lag); *contourIndex = (opus_int8)CBimax; } else { /* Fs_kHz == 8 */ - /* Save Lags and correlation */ - CCmax = silk_max( CCmax, 0 ); - *LTPCorr_Q15 = (opus_int)silk_SQRT_APPROX( silk_LSHIFT( CCmax, 13 ) ); /* Output normalized correlation */ + /* Save Lags */ for( k = 0; k < nb_subfr; k++ ) { pitch_out[ k ] = lag + matrix_ptr( Lag_CB_ptr, k, CBimax, cbk_size ); - pitch_out[ k ] = silk_LIMIT( pitch_out[ k ], min_lag_8kHz, PE_MAX_LAG_MS * Fs_kHz ); + pitch_out[ k ] = silk_LIMIT( pitch_out[ k ], MIN_LAG_8KHZ, PE_MAX_LAG_MS * 8 ); } - *lagIndex = (opus_int16)( lag - min_lag_8kHz ); + *lagIndex = (opus_int16)( lag - MIN_LAG_8KHZ ); *contourIndex = (opus_int8)CBimax; } silk_assert( *lagIndex >= 0 ); /* return as voiced */ + RESTORE_STACK; return 0; } -/*************************************************************************/ -/* Calculates the correlations used in stage 3 search. In order to cover */ -/* the whole lag codebook for all the searched offset lags (lag +- 2), */ -/*************************************************************************/ -void silk_P_Ana_calc_corr_st3( - opus_int32 cross_corr_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ],/* (O) 3 DIM correlation array */ +/*********************************************************************** + * Calculates the correlations used in stage 3 search. In order to cover + * the whole lag codebook for all the searched offset lags (lag +- 2), + * the following correlations are needed in each sub frame: + * + * sf1: lag range [-8,...,7] total 16 correlations + * sf2: lag range [-4,...,4] total 9 correlations + * sf3: lag range [-3,....4] total 8 correltions + * sf4: lag range [-6,....8] total 15 correlations + * + * In total 48 correlations. The direct implementation computed in worst + * case 4*12*5 = 240 correlations, but more likely around 120. + ***********************************************************************/ +static void silk_P_Ana_calc_corr_st3( + silk_pe_stage3_vals cross_corr_st3[], /* O 3 DIM correlation array */ const opus_int16 frame[], /* I vector to correlate */ opus_int start_lag, /* I lag offset to search around */ opus_int sf_length, /* I length of a 5 ms subframe */ @@ -588,12 +600,13 @@ void silk_P_Ana_calc_corr_st3( opus_int complexity /* I Complexity setting */ ) { - const opus_int16 *target_ptr, *basis_ptr; - opus_int32 cross_corr; + const opus_int16 *target_ptr; opus_int i, j, k, lag_counter, lag_low, lag_high; opus_int nb_cbk_search, delta, idx, cbk_size; - opus_int32 scratch_mem[ SCRATCH_SIZE ]; + VARDECL( opus_int32, scratch_mem ); + VARDECL( opus_int32, xcorr32 ); const opus_int8 *Lag_range_ptr, *Lag_CB_ptr; + SAVE_STACK; silk_assert( complexity >= SILK_PE_MIN_COMPLEX ); silk_assert( complexity <= SILK_PE_MAX_COMPLEX ); @@ -610,6 +623,8 @@ void silk_P_Ana_calc_corr_st3( nb_cbk_search = PE_NB_CBKS_STAGE3_10MS; cbk_size = PE_NB_CBKS_STAGE3_10MS; } + ALLOC( scratch_mem, SCRATCH_SIZE, opus_int32 ); + ALLOC( xcorr32, SCRATCH_SIZE, opus_int32 ); target_ptr = &frame[ silk_LSHIFT( sf_length, 2 ) ]; /* Pointer to middle of frame */ for( k = 0; k < nb_subfr; k++ ) { @@ -618,11 +633,11 @@ void silk_P_Ana_calc_corr_st3( /* Calculate the correlations for each subframe */ lag_low = matrix_ptr( Lag_range_ptr, k, 0, 2 ); lag_high = matrix_ptr( Lag_range_ptr, k, 1, 2 ); + silk_assert(lag_high-lag_low+1 <= SCRATCH_SIZE); + celt_pitch_xcorr( target_ptr, target_ptr - start_lag - lag_high, xcorr32, sf_length, lag_high - lag_low + 1 ); for( j = lag_low; j <= lag_high; j++ ) { - basis_ptr = target_ptr - ( start_lag + j ); - cross_corr = silk_inner_prod_aligned( (opus_int16*)target_ptr, (opus_int16*)basis_ptr, sf_length ); silk_assert( lag_counter < SCRATCH_SIZE ); - scratch_mem[ lag_counter ] = cross_corr; + scratch_mem[ lag_counter ] = xcorr32[ lag_high - j ]; lag_counter++; } @@ -634,32 +649,35 @@ void silk_P_Ana_calc_corr_st3( for( j = 0; j < PE_NB_STAGE3_LAGS; j++ ) { silk_assert( idx + j < SCRATCH_SIZE ); silk_assert( idx + j < lag_counter ); - cross_corr_st3[ k ][ i ][ j ] = scratch_mem[ idx + j ]; + matrix_ptr( cross_corr_st3, k, i, nb_cbk_search )[ j ] = + scratch_mem[ idx + j ]; } } target_ptr += sf_length; } + RESTORE_STACK; } /********************************************************************/ /* Calculate the energies for first two subframes. The energies are */ /* calculated recursively. */ /********************************************************************/ -void silk_P_Ana_calc_energy_st3( - opus_int32 energies_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ],/* (O) 3 DIM energy array */ - const opus_int16 frame[], /* I vector to calc energy in */ - opus_int start_lag, /* I lag offset to search around */ - opus_int sf_length, /* I length of one 5 ms subframe */ - opus_int nb_subfr, /* I number of subframes */ - opus_int complexity /* I Complexity setting */ +static void silk_P_Ana_calc_energy_st3( + silk_pe_stage3_vals energies_st3[], /* O 3 DIM energy array */ + const opus_int16 frame[], /* I vector to calc energy in */ + opus_int start_lag, /* I lag offset to search around */ + opus_int sf_length, /* I length of one 5 ms subframe */ + opus_int nb_subfr, /* I number of subframes */ + opus_int complexity /* I Complexity setting */ ) { const opus_int16 *target_ptr, *basis_ptr; opus_int32 energy; opus_int k, i, j, lag_counter; opus_int nb_cbk_search, delta, idx, cbk_size, lag_diff; - opus_int32 scratch_mem[ SCRATCH_SIZE ]; + VARDECL( opus_int32, scratch_mem ); const opus_int8 *Lag_range_ptr, *Lag_CB_ptr; + SAVE_STACK; silk_assert( complexity >= SILK_PE_MIN_COMPLEX ); silk_assert( complexity <= SILK_PE_MAX_COMPLEX ); @@ -676,6 +694,8 @@ void silk_P_Ana_calc_energy_st3( nb_cbk_search = PE_NB_CBKS_STAGE3_10MS; cbk_size = PE_NB_CBKS_STAGE3_10MS; } + ALLOC( scratch_mem, SCRATCH_SIZE, opus_int32 ); + target_ptr = &frame[ silk_LSHIFT( sf_length, 2 ) ]; for( k = 0; k < nb_subfr; k++ ) { lag_counter = 0; @@ -709,37 +729,13 @@ void silk_P_Ana_calc_energy_st3( for( j = 0; j < PE_NB_STAGE3_LAGS; j++ ) { silk_assert( idx + j < SCRATCH_SIZE ); silk_assert( idx + j < lag_counter ); - energies_st3[ k ][ i ][ j ] = scratch_mem[ idx + j ]; - silk_assert( energies_st3[ k ][ i ][ j ] >= 0 ); + matrix_ptr( energies_st3, k, i, nb_cbk_search )[ j ] = + scratch_mem[ idx + j ]; + silk_assert( + matrix_ptr( energies_st3, k, i, nb_cbk_search )[ j ] >= 0 ); } } target_ptr += sf_length; } -} - -opus_int32 silk_P_Ana_find_scaling( - const opus_int16 *frame, - const opus_int frame_length, - const opus_int sum_sqr_len -) -{ - opus_int32 nbits, x_max; - - x_max = silk_int16_array_maxabs( frame, frame_length ); - - if( x_max < silk_int16_MAX ) { - /* Number of bits needed for the sum of the squares */ - nbits = 32 - silk_CLZ32( silk_SMULBB( x_max, x_max ) ); - } else { - /* Here we don't know if x_max should have been silk_int16_MAX + 1, so we expect the worst case */ - nbits = 30; - } - nbits += 17 - silk_CLZ16( sum_sqr_len ); - - /* Without a guarantee of saturation, we need to keep the 31st bit free */ - if( nbits < 31 ) { - return 0; - } else { - return( nbits - 30 ); - } + RESTORE_STACK; } diff --git a/silk/fixed/prefilter_FIX.c b/silk/fixed/prefilter_FIX.c index a96f511..1cfe4f9 100644 --- a/silk/fixed/prefilter_FIX.c +++ b/silk/fixed/prefilter_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE. #endif #include "main_FIX.h" +#include "stack_alloc.h" #include "tuning_parameters.h" /* Prefilter for finding Quantizer input signal */ @@ -101,14 +102,17 @@ void silk_prefilter_FIX( opus_int32 *pxw_Q3; opus_int HarmShapeGain_Q12, Tilt_Q14; opus_int32 HarmShapeFIRPacked_Q12, LF_shp_Q14; - opus_int32 x_filt_Q12[ MAX_SUB_FRAME_LENGTH ]; - opus_int32 st_res_Q2[ MAX_SUB_FRAME_LENGTH + MAX_LPC_ORDER ]; + 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 ) { @@ -148,6 +152,7 @@ void silk_prefilter_FIX( } P->lagPrev = psEncCtrl->pitchL[ psEnc->sCmn.nb_subfr - 1 ]; + RESTORE_STACK; } /* Prefilter for finding Quantizer input signal */ diff --git a/silk/fixed/process_gains_FIX.c b/silk/fixed/process_gains_FIX.c index 22d3a71..05aba31 100644 --- a/silk/fixed/process_gains_FIX.c +++ b/silk/fixed/process_gains_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/regularize_correlations_FIX.c b/silk/fixed/regularize_correlations_FIX.c index 098c150..a2836b0 100644 --- a/silk/fixed/regularize_correlations_FIX.c +++ b/silk/fixed/regularize_correlations_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/residual_energy16_FIX.c b/silk/fixed/residual_energy16_FIX.c index d61e849..ebffb2a 100644 --- a/silk/fixed/residual_energy16_FIX.c +++ b/silk/fixed/residual_energy16_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/residual_energy_FIX.c b/silk/fixed/residual_energy_FIX.c index f284e51..105ae31 100644 --- a/silk/fixed/residual_energy_FIX.c +++ b/silk/fixed/residual_energy_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE. #endif #include "main_FIX.h" +#include "stack_alloc.h" /* Calculates residual energies of input subframes where all subframes have LPC_order */ /* of preceding samples */ @@ -45,14 +46,18 @@ void silk_residual_energy_FIX( ) { opus_int offset, i, j, rshift, lz1, lz2; - opus_int16 *LPC_res_ptr, LPC_res[ ( MAX_FRAME_LENGTH + MAX_NB_SUBFR * MAX_LPC_ORDER ) / 2 ]; + opus_int16 *LPC_res_ptr; + VARDECL( opus_int16, LPC_res ); const opus_int16 *x_ptr; opus_int32 tmp32; + SAVE_STACK; x_ptr = x; offset = LPC_order + subfr_length; /* Filter input to create the LPC residual for each frame half, and measure subframe energies */ + ALLOC( LPC_res, ( MAX_NB_SUBFR >> 1 ) * offset, opus_int16 ); + silk_assert( ( nb_subfr >> 1 ) * ( MAX_NB_SUBFR >> 1 ) == nb_subfr ); for( i = 0; i < nb_subfr >> 1; i++ ) { /* Calculate half frame LPC residual signal including preceding samples */ silk_LPC_analysis_filter( LPC_res, x_ptr, a_Q12[ i ], ( MAX_NB_SUBFR >> 1 ) * offset, LPC_order ); @@ -88,4 +93,5 @@ void silk_residual_energy_FIX( nrgs[ i ] = silk_SMMUL( tmp32, silk_LSHIFT32( nrgs[ i ], lz1 ) ); /* Q( nrgsQ[ i ] + lz1 + 2 * lz2 - 32 - 32 )*/ nrgsQ[ i ] += lz1 + 2 * lz2 - 32 - 32; } + RESTORE_STACK; } diff --git a/silk/fixed/schur64_FIX.c b/silk/fixed/schur64_FIX.c index 5ff2756..764a10e 100644 --- a/silk/fixed/schur64_FIX.c +++ b/silk/fixed/schur64_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -56,6 +56,17 @@ opus_int32 silk_schur64( /* O returns residual ene } for( k = 0; k < order; k++ ) { + /* Check that we won't be getting an unstable rc, otherwise stop here. */ + if (silk_abs_int32(C[ k + 1 ][ 0 ]) >= C[ 0 ][ 1 ]) { + if ( C[ k + 1 ][ 0 ] > 0 ) { + rc_Q16[ k ] = -SILK_FIX_CONST( .99f, 16 ); + } else { + rc_Q16[ k ] = SILK_FIX_CONST( .99f, 16 ); + } + k++; + break; + } + /* Get reflection coefficient: divide two Q30 values and get result in Q31 */ rc_tmp_Q31 = silk_DIV32_varQ( -C[ k + 1 ][ 0 ], C[ 0 ][ 1 ], 31 ); @@ -73,5 +84,9 @@ opus_int32 silk_schur64( /* O returns residual ene } } - return( C[ 0 ][ 1 ] ); + for(; k < order; k++ ) { + rc_Q16[ k ] = 0; + } + + return silk_max_32( 1, C[ 0 ][ 1 ] ); } diff --git a/silk/fixed/schur_FIX.c b/silk/fixed/schur_FIX.c index 43db501..c4c0ef2 100644 --- a/silk/fixed/schur_FIX.c +++ b/silk/fixed/schur_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -68,6 +68,16 @@ opus_int32 silk_schur( /* O Returns residual ene } for( k = 0; k < order; k++ ) { + /* Check that we won't be getting an unstable rc, otherwise stop here. */ + if (silk_abs_int32(C[ k + 1 ][ 0 ]) >= C[ 0 ][ 1 ]) { + if ( C[ k + 1 ][ 0 ] > 0 ) { + rc_Q15[ k ] = -SILK_FIX_CONST( .99f, 15 ); + } else { + rc_Q15[ k ] = SILK_FIX_CONST( .99f, 15 ); + } + k++; + break; + } /* Get reflection coefficient */ rc_tmp_Q15 = -silk_DIV32_16( C[ k + 1 ][ 0 ], silk_max_32( silk_RSHIFT( C[ 0 ][ 1 ], 15 ), 1 ) ); @@ -87,6 +97,10 @@ opus_int32 silk_schur( /* O Returns residual ene } } + for(; k < order; k++ ) { + rc_Q15[ k ] = 0; + } + /* return residual energy */ - return C[ 0 ][ 1 ]; + return silk_max_32( 1, C[ 0 ][ 1 ] ); } diff --git a/silk/fixed/solve_LS_FIX.c b/silk/fixed/solve_LS_FIX.c index fb913ab..1a39018 100644 --- a/silk/fixed/solve_LS_FIX.c +++ b/silk/fixed/solve_LS_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -30,6 +30,7 @@ POSSIBILITY OF SUCH DAMAGE. #endif #include "main_FIX.h" +#include "stack_alloc.h" #include "tuning_parameters.h" /*****************************/ @@ -79,11 +80,13 @@ void silk_solve_LDL_FIX( opus_int32 *x_Q16 /* O Pointer to x solution vector */ ) { - opus_int32 L_Q16[ MAX_MATRIX_SIZE * MAX_MATRIX_SIZE ]; + VARDECL( opus_int32, L_Q16 ); opus_int32 Y[ MAX_MATRIX_SIZE ]; inv_D_t inv_D[ MAX_MATRIX_SIZE ]; + SAVE_STACK; silk_assert( M <= MAX_MATRIX_SIZE ); + ALLOC( L_Q16, M * M, opus_int32 ); /*************************************************** Factorize A by LDL such that A = L*D*L', @@ -107,6 +110,7 @@ void silk_solve_LDL_FIX( x = inv(L') * inv(D) * Y *****************************************************/ silk_LS_SolveLast_FIX( L_Q16, M, Y, x_Q16 ); + RESTORE_STACK; } static inline void silk_LDL_factorize_FIX( diff --git a/silk/fixed/structs_FIX.h b/silk/fixed/structs_FIX.h index 4162608..244b479 100644 --- a/silk/fixed/structs_FIX.h +++ b/silk/fixed/structs_FIX.h @@ -8,11 +8,11 @@ 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 +- 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” +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 diff --git a/silk/fixed/vector_ops_FIX.c b/silk/fixed/vector_ops_FIX.c index d620602..509c8b3 100644 --- a/silk/fixed/vector_ops_FIX.c +++ b/silk/fixed/vector_ops_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 @@ -94,34 +94,3 @@ opus_int64 silk_inner_prod16_aligned_64( } return sum; } - -/* Function that returns the maximum absolut value of the input vector */ -opus_int16 silk_int16_array_maxabs( /* O Maximum absolute value, max: 2^15-1 */ - const opus_int16 *vec, /* I Input vector [len] */ - const opus_int32 len /* I Length of input vector */ -) -{ - opus_int32 max = 0, i, lvl = 0, ind; - if( len == 0 ) return 0; - - ind = len - 1; - max = silk_SMULBB( vec[ ind ], vec[ ind ] ); - for( i = len - 2; i >= 0; i-- ) { - lvl = silk_SMULBB( vec[ i ], vec[ i ] ); - if( lvl > max ) { - max = lvl; - ind = i; - } - } - - /* Do not return 32768, as it will not fit in an int16 so may lead to problems later on */ - if( max >= 1073676289 ) { /* (2^15-1)^2 = 1073676289 */ - return( silk_int16_MAX ); - } else { - if( vec[ ind ] < 0 ) { - return( -vec[ ind ] ); - } else { - return( vec[ ind ] ); - } - } -} diff --git a/silk/fixed/warped_autocorrelation_FIX.c b/silk/fixed/warped_autocorrelation_FIX.c index d7a3944..a4a579b 100644 --- a/silk/fixed/warped_autocorrelation_FIX.c +++ b/silk/fixed/warped_autocorrelation_FIX.c @@ -8,11 +8,11 @@ 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 +- 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” +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 |