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Commit fb3a437c authored by Jean-Marc Valin's avatar Jean-Marc Valin
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Renaming the SKP_ prefix to silk_

parent c0f050e7
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silk/fixed/silk_LTP_analysis_filter_FIX.c
View file @ fb3a437c
......@@ -62,17 +62,17 @@ void silk_LTP_analysis_filter_FIX(
LTP_res_ptr[ i ] = x_ptr[ i ];
/* Long-term prediction */
LTP_est = SKP_SMULBB( x_lag_ptr[ LTP_ORDER / 2 ], Btmp_Q14[ 0 ] );
LTP_est = silk_SMULBB( x_lag_ptr[ LTP_ORDER / 2 ], Btmp_Q14[ 0 ] );
for( j = 1; j < LTP_ORDER; j++ ) {
LTP_est = SKP_SMLABB_ovflw( LTP_est, x_lag_ptr[ LTP_ORDER / 2 - j ], Btmp_Q14[ j ] );
LTP_est = silk_SMLABB_ovflw( LTP_est, x_lag_ptr[ LTP_ORDER / 2 - j ], Btmp_Q14[ j ] );
}
LTP_est = SKP_RSHIFT_ROUND( LTP_est, 14 ); /* round and -> Q0*/
LTP_est = silk_RSHIFT_ROUND( LTP_est, 14 ); /* round and -> Q0*/
/* Subtract long-term prediction */
LTP_res_ptr[ i ] = ( opus_int16 )SKP_SAT16( ( opus_int32 )x_ptr[ i ] - LTP_est );
LTP_res_ptr[ i ] = ( opus_int16 )silk_SAT16( ( opus_int32 )x_ptr[ i ] - LTP_est );
/* Scale residual */
LTP_res_ptr[ i ] = SKP_SMULWB( invGains_Q16[ k ], LTP_res_ptr[ i ] );
LTP_res_ptr[ i ] = silk_SMULWB( invGains_Q16[ k ], LTP_res_ptr[ i ] );
x_lag_ptr++;
}
......
silk/fixed/silk_LTP_scale_ctrl_FIX.c
View file @ fb3a437c
......@@ -39,15 +39,15 @@ void silk_LTP_scale_ctrl_FIX(
opus_int round_loss;
/* 1st order high-pass filter */
psEnc->HPLTPredCodGain_Q7 = SKP_max_int( psEncCtrl->LTPredCodGain_Q7 - SKP_RSHIFT( psEnc->prevLTPredCodGain_Q7, 1 ), 0 )
+ SKP_RSHIFT( psEnc->HPLTPredCodGain_Q7, 1 );
psEnc->HPLTPredCodGain_Q7 = silk_max_int( psEncCtrl->LTPredCodGain_Q7 - silk_RSHIFT( psEnc->prevLTPredCodGain_Q7, 1 ), 0 )
+ silk_RSHIFT( psEnc->HPLTPredCodGain_Q7, 1 );
psEnc->prevLTPredCodGain_Q7 = psEncCtrl->LTPredCodGain_Q7;
/* Only scale if first frame in packet */
if( psEnc->sCmn.nFramesEncoded == 0 ) {
round_loss = psEnc->sCmn.PacketLoss_perc + psEnc->sCmn.nFramesPerPacket - 1;
psEnc->sCmn.indices.LTP_scaleIndex = (opus_int8)SKP_LIMIT(
SKP_SMULWB( SKP_SMULBB( round_loss, psEnc->HPLTPredCodGain_Q7 ), SILK_FIX_CONST( 0.1, 9 ) ), 0, 2 );
psEnc->sCmn.indices.LTP_scaleIndex = (opus_int8)silk_LIMIT(
silk_SMULWB( silk_SMULBB( round_loss, psEnc->HPLTPredCodGain_Q7 ), SILK_FIX_CONST( 0.1, 9 ) ), 0, 2 );
} else {
/* Default is minimum scaling */
psEnc->sCmn.indices.LTP_scaleIndex = 0;
......
silk/fixed/silk_corrMatrix_FIX.c
View file @ fb3a437c
......@@ -57,13 +57,13 @@ void silk_corrVector_FIX(
for( lag = 0; lag < order; lag++ ) {
inner_prod = 0;
for( i = 0; i < L; i++ ) {
inner_prod += SKP_RSHIFT32( SKP_SMULBB( ptr1[ i ], ptr2[i] ), rshifts );
inner_prod += silk_RSHIFT32( silk_SMULBB( ptr1[ i ], ptr2[i] ), rshifts );
}
Xt[ lag ] = inner_prod; /* X[:,lag]'*t */
ptr1--; /* Go to next column of X */
}
} else {
SKP_assert( rshifts == 0 );
silk_assert( rshifts == 0 );
for( lag = 0; lag < order; lag++ ) {
Xt[ lag ] = silk_inner_prod_aligned( ptr1, ptr2, L ); /* X[:,lag]'*t */
ptr1--; /* Go to next column of X */
......@@ -88,19 +88,19 @@ void silk_corrMatrix_FIX(
/* Calculate energy to find shift used to fit in 32 bits */
silk_sum_sqr_shift( &energy, &rshifts_local, x, L + order - 1 );
/* Add shifts to get the desired head room */
head_room_rshifts = SKP_max( head_room - silk_CLZ32( energy ), 0 );
head_room_rshifts = silk_max( head_room - silk_CLZ32( energy ), 0 );
energy = SKP_RSHIFT32( energy, head_room_rshifts );
energy = silk_RSHIFT32( energy, head_room_rshifts );
rshifts_local += head_room_rshifts;
/* Calculate energy of first column (0) of X: X[:,0]'*X[:,0] */
/* Remove contribution of first order - 1 samples */
for( i = 0; i < order - 1; i++ ) {
energy -= SKP_RSHIFT32( SKP_SMULBB( x[ i ], x[ i ] ), rshifts_local );
energy -= silk_RSHIFT32( silk_SMULBB( x[ i ], x[ i ] ), rshifts_local );
}
if( rshifts_local < *rshifts ) {
/* Adjust energy */
energy = SKP_RSHIFT32( energy, *rshifts - rshifts_local );
energy = silk_RSHIFT32( energy, *rshifts - rshifts_local );
rshifts_local = *rshifts;
}
......@@ -109,8 +109,8 @@ void silk_corrMatrix_FIX(
matrix_ptr( XX, 0, 0, order ) = energy;
ptr1 = &x[ order - 1 ]; /* First sample of column 0 of X */
for( j = 1; j < order; j++ ) {
energy = SKP_SUB32( energy, SKP_RSHIFT32( SKP_SMULBB( ptr1[ L - j ], ptr1[ L - j ] ), rshifts_local ) );
energy = SKP_ADD32( energy, SKP_RSHIFT32( SKP_SMULBB( ptr1[ -j ], ptr1[ -j ] ), rshifts_local ) );
energy = silk_SUB32( energy, silk_RSHIFT32( silk_SMULBB( ptr1[ L - j ], ptr1[ L - j ] ), rshifts_local ) );
energy = silk_ADD32( energy, silk_RSHIFT32( silk_SMULBB( ptr1[ -j ], ptr1[ -j ] ), rshifts_local ) );
matrix_ptr( XX, j, j, order ) = energy;
}
......@@ -122,14 +122,14 @@ void silk_corrMatrix_FIX(
/* Inner product of column 0 and column lag: X[:,0]'*X[:,lag] */
energy = 0;
for( i = 0; i < L; i++ ) {
energy += SKP_RSHIFT32( SKP_SMULBB( ptr1[ i ], ptr2[i] ), rshifts_local );
energy += silk_RSHIFT32( silk_SMULBB( ptr1[ i ], ptr2[i] ), rshifts_local );
}
/* Calculate remaining off diagonal: X[:,j]'*X[:,j + lag] */
matrix_ptr( XX, lag, 0, order ) = energy;
matrix_ptr( XX, 0, lag, order ) = energy;
for( j = 1; j < ( order - lag ); j++ ) {
energy = SKP_SUB32( energy, SKP_RSHIFT32( SKP_SMULBB( ptr1[ L - j ], ptr2[ L - j ] ), rshifts_local ) );
energy = SKP_ADD32( energy, SKP_RSHIFT32( SKP_SMULBB( ptr1[ -j ], ptr2[ -j ] ), rshifts_local ) );
energy = silk_SUB32( energy, silk_RSHIFT32( silk_SMULBB( ptr1[ L - j ], ptr2[ L - j ] ), rshifts_local ) );
energy = silk_ADD32( energy, silk_RSHIFT32( silk_SMULBB( ptr1[ -j ], ptr2[ -j ] ), rshifts_local ) );
matrix_ptr( XX, lag + j, j, order ) = energy;
matrix_ptr( XX, j, lag + j, order ) = energy;
}
......@@ -143,8 +143,8 @@ void silk_corrMatrix_FIX(
matrix_ptr( XX, 0, lag, order ) = energy;
/* Calculate remaining off diagonal: X[:,j]'*X[:,j + lag] */
for( j = 1; j < ( order - lag ); j++ ) {
energy = SKP_SUB32( energy, SKP_SMULBB( ptr1[ L - j ], ptr2[ L - j ] ) );
energy = SKP_SMLABB( energy, ptr1[ -j ], ptr2[ -j ] );
energy = silk_SUB32( energy, silk_SMULBB( ptr1[ L - j ], ptr2[ L - j ] ) );
energy = silk_SMLABB( energy, ptr1[ -j ], ptr2[ -j ] );
matrix_ptr( XX, lag + j, j, order ) = energy;
matrix_ptr( XX, j, lag + j, order ) = energy;
}
......
silk/fixed/silk_encode_frame_FIX.c
View file @ fb3a437c
......@@ -96,7 +96,7 @@ TOC(VAD)
/*******************************************/
/* Copy new frame to front of input buffer */
/*******************************************/
SKP_memcpy( x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.inputBuf + 1, psEnc->sCmn.frame_length * sizeof( opus_int16 ) );
silk_memcpy( x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.inputBuf + 1, psEnc->sCmn.frame_length * sizeof( opus_int16 ) );
/*****************************************/
/* Find pitch lags, initial LPC analysis */
......@@ -156,7 +156,7 @@ TIC(NSQ)
TOC(NSQ)
/* Update input buffer */
SKP_memmove( psEnc->x_buf, &psEnc->x_buf[ psEnc->sCmn.frame_length ],
silk_memmove( psEnc->x_buf, &psEnc->x_buf[ psEnc->sCmn.frame_length ],
( psEnc->sCmn.ltp_mem_length + LA_SHAPE_MS * psEnc->sCmn.fs_kHz ) * sizeof( opus_int16 ) );
/* Parameters needed for next frame */
......@@ -191,7 +191,7 @@ TOC(ENCODE_PULSES)
psEnc->sCmn.first_frame_after_reset = 0;
if( ++psEnc->sCmn.nFramesEncoded >= psEnc->sCmn.nFramesPerPacket ) {
/* Payload size */
*pnBytesOut = SKP_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
*pnBytesOut = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
/* Reset the number of frames in payload buffer */
psEnc->sCmn.nFramesEncoded = 0;
......@@ -203,40 +203,40 @@ TOC(ENCODE_FRAME)
#ifdef SAVE_ALL_INTERNAL_DATA
{
SKP_float tmp[ MAX_NB_SUBFR * LTP_ORDER ];
silk_float tmp[ MAX_NB_SUBFR * LTP_ORDER ];
int i;
DEBUG_STORE_DATA( xf.dat, x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.frame_length * sizeof( opus_int16 ) );
DEBUG_STORE_DATA( xfw.dat, xfw, psEnc->sCmn.frame_length * sizeof( opus_int16 ) );
DEBUG_STORE_DATA( pitchL.dat, sEncCtrl.pitchL, psEnc->sCmn.nb_subfr * sizeof( opus_int ) );
for( i = 0; i < psEnc->sCmn.nb_subfr * LTP_ORDER; i++ ) {
tmp[ i ] = (SKP_float)sEncCtrl.LTPCoef_Q14[ i ] / 16384.0f;
tmp[ i ] = (silk_float)sEncCtrl.LTPCoef_Q14[ i ] / 16384.0f;
}
DEBUG_STORE_DATA( pitchG_quantized.dat, tmp, psEnc->sCmn.nb_subfr * LTP_ORDER * sizeof( SKP_float ) );
DEBUG_STORE_DATA( pitchG_quantized.dat, tmp, psEnc->sCmn.nb_subfr * LTP_ORDER * sizeof( silk_float ) );
for( i = 0; i <psEnc->sCmn.predictLPCOrder; i++ ) {
tmp[ i ] = (SKP_float)sEncCtrl.PredCoef_Q12[ 1 ][ i ] / 4096.0f;
tmp[ i ] = (silk_float)sEncCtrl.PredCoef_Q12[ 1 ][ i ] / 4096.0f;
}
DEBUG_STORE_DATA( PredCoef.dat, tmp, psEnc->sCmn.predictLPCOrder * sizeof( SKP_float ) );
tmp[ 0 ] = (SKP_float)sEncCtrl.LTPredCodGain_Q7 / 128.0f;
DEBUG_STORE_DATA( LTPredCodGain.dat, tmp, sizeof( SKP_float ) );
tmp[ 0 ] = (SKP_float)psEnc->LTPCorr_Q15 / 32768.0f;
DEBUG_STORE_DATA( LTPcorr.dat, tmp, sizeof( SKP_float ) );
tmp[ 0 ] = (SKP_float)psEnc->sCmn.input_tilt_Q15 / 32768.0f;
DEBUG_STORE_DATA( tilt.dat, tmp, sizeof( SKP_float ) );
DEBUG_STORE_DATA( PredCoef.dat, tmp, psEnc->sCmn.predictLPCOrder * sizeof( silk_float ) );
tmp[ 0 ] = (silk_float)sEncCtrl.LTPredCodGain_Q7 / 128.0f;
DEBUG_STORE_DATA( LTPredCodGain.dat, tmp, sizeof( silk_float ) );
tmp[ 0 ] = (silk_float)psEnc->LTPCorr_Q15 / 32768.0f;
DEBUG_STORE_DATA( LTPcorr.dat, tmp, sizeof( silk_float ) );
tmp[ 0 ] = (silk_float)psEnc->sCmn.input_tilt_Q15 / 32768.0f;
DEBUG_STORE_DATA( tilt.dat, tmp, sizeof( silk_float ) );
for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) {
tmp[ i ] = (SKP_float)sEncCtrl.Gains_Q16[ i ] / 65536.0f;
tmp[ i ] = (silk_float)sEncCtrl.Gains_Q16[ i ] / 65536.0f;
}
DEBUG_STORE_DATA( gains.dat, tmp, psEnc->sCmn.nb_subfr * sizeof( SKP_float ) );
DEBUG_STORE_DATA( gains.dat, tmp, psEnc->sCmn.nb_subfr * sizeof( silk_float ) );
DEBUG_STORE_DATA( gains_indices.dat, &psEnc->sCmn.indices.GainsIndices, psEnc->sCmn.nb_subfr * sizeof( opus_int ) );
tmp[ 0 ] = (SKP_float)sEncCtrl.current_SNR_dB_Q7 / 128.0f;
DEBUG_STORE_DATA( current_SNR_db.dat, tmp, sizeof( SKP_float ) );
tmp[ 0 ] = (silk_float)sEncCtrl.current_SNR_dB_Q7 / 128.0f;
DEBUG_STORE_DATA( current_SNR_db.dat, tmp, sizeof( silk_float ) );
DEBUG_STORE_DATA( quantOffsetType.dat, &psEnc->sCmn.indices.quantOffsetType, sizeof( opus_int ) );
tmp[ 0 ] = (SKP_float)psEnc->sCmn.speech_activity_Q8 / 256.0f;
DEBUG_STORE_DATA( speech_activity.dat, tmp, sizeof( SKP_float ) );
tmp[ 0 ] = (silk_float)psEnc->sCmn.speech_activity_Q8 / 256.0f;
DEBUG_STORE_DATA( speech_activity.dat, tmp, sizeof( silk_float ) );
for( i = 0; i < VAD_N_BANDS; i++ ) {
tmp[ i ] = (SKP_float)psEnc->sCmn.input_quality_bands_Q15[ i ] / 32768.0f;
tmp[ i ] = (silk_float)psEnc->sCmn.input_quality_bands_Q15[ i ] / 32768.0f;
}
DEBUG_STORE_DATA( input_quality_bands.dat, tmp, VAD_N_BANDS * sizeof( SKP_float ) );
DEBUG_STORE_DATA( input_quality_bands.dat, tmp, VAD_N_BANDS * sizeof( silk_float ) );
DEBUG_STORE_DATA( signalType.dat, &psEnc->sCmn.indices.signalType, sizeof( opus_int8) );
DEBUG_STORE_DATA( lag_index.dat, &psEnc->sCmn.indices.lagIndex, sizeof( opus_int16 ) );
DEBUG_STORE_DATA( contour_index.dat, &psEnc->sCmn.indices.contourIndex, sizeof( opus_int8 ) );
......@@ -264,11 +264,11 @@ void silk_LBRR_encode_FIX(
psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesEncoded ] = 1;
/* Copy noise shaping quantizer state and quantization indices from regular encoding */
SKP_memcpy( &sNSQ_LBRR, &psEnc->sCmn.sNSQ, sizeof( silk_nsq_state ) );
SKP_memcpy( psIndices_LBRR, &psEnc->sCmn.indices, sizeof( SideInfoIndices ) );
silk_memcpy( &sNSQ_LBRR, &psEnc->sCmn.sNSQ, sizeof( silk_nsq_state ) );
silk_memcpy( psIndices_LBRR, &psEnc->sCmn.indices, sizeof( SideInfoIndices ) );
/* Save original gains */
SKP_memcpy( TempGains_Q16, psEncCtrl->Gains_Q16, psEnc->sCmn.nb_subfr * sizeof( opus_int32 ) );
silk_memcpy( TempGains_Q16, psEncCtrl->Gains_Q16, psEnc->sCmn.nb_subfr * sizeof( opus_int32 ) );
if( psEnc->sCmn.nFramesEncoded == 0 || psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesEncoded - 1 ] == 0 ) {
/* First frame in packet or previous frame not LBRR coded */
......@@ -276,7 +276,7 @@ void silk_LBRR_encode_FIX(
/* Increase Gains to get target LBRR rate */
psIndices_LBRR->GainsIndices[ 0 ] = psIndices_LBRR->GainsIndices[ 0 ] + psEnc->sCmn.LBRR_GainIncreases;
psIndices_LBRR->GainsIndices[ 0 ] = SKP_min_int( psIndices_LBRR->GainsIndices[ 0 ], N_LEVELS_QGAIN - 1 );
psIndices_LBRR->GainsIndices[ 0 ] = silk_min_int( psIndices_LBRR->GainsIndices[ 0 ], N_LEVELS_QGAIN - 1 );
}
/* Decode to get gains in sync with decoder */
......@@ -300,6 +300,6 @@ void silk_LBRR_encode_FIX(
}
/* Restore original gains */
SKP_memcpy( psEncCtrl->Gains_Q16, TempGains_Q16, psEnc->sCmn.nb_subfr * sizeof( opus_int32 ) );
silk_memcpy( psEncCtrl->Gains_Q16, TempGains_Q16, psEnc->sCmn.nb_subfr * sizeof( opus_int32 ) );
}
}
silk/fixed/silk_find_LPC_FIX.c
View file @ fb3a437c
......@@ -83,11 +83,11 @@ void silk_find_LPC_FIX(
shift = res_tmp_nrg_Q - res_nrg_Q;
if( shift >= 0 ) {
if( shift < 32 ) {
res_nrg = res_nrg - SKP_RSHIFT( res_tmp_nrg, shift );
res_nrg = res_nrg - silk_RSHIFT( res_tmp_nrg, shift );
}
} else {
SKP_assert( shift > -32 );
res_nrg = SKP_RSHIFT( res_nrg, -shift ) - res_tmp_nrg;
silk_assert( shift > -32 );
res_nrg = silk_RSHIFT( res_nrg, -shift ) - res_tmp_nrg;
res_nrg_Q = res_tmp_nrg_Q;
}
......@@ -95,7 +95,7 @@ void silk_find_LPC_FIX(
silk_A2NLSF( NLSF_Q15, a_tmp_Q16, LPC_order );
/* Search over interpolation indices to find the one with lowest residual energy */
res_nrg_2nd = SKP_int32_MAX;
res_nrg_2nd = silk_int32_MAX;
for( k = 3; k >= 0; k-- ) {
/* Interpolate NLSFs for first half */
silk_interpolate( NLSF0_Q15, prev_NLSFq_Q15, NLSF_Q15, k, LPC_order );
......@@ -112,36 +112,36 @@ void silk_find_LPC_FIX(
/* Add subframe energies from first half frame */
shift = rshift0 - rshift1;
if( shift >= 0 ) {
res_nrg1 = SKP_RSHIFT( res_nrg1, shift );
res_nrg1 = silk_RSHIFT( res_nrg1, shift );
res_nrg_interp_Q = -rshift0;
} else {
res_nrg0 = SKP_RSHIFT( res_nrg0, -shift );
res_nrg0 = silk_RSHIFT( res_nrg0, -shift );
res_nrg_interp_Q = -rshift1;
}
res_nrg_interp = SKP_ADD32( res_nrg0, res_nrg1 );
res_nrg_interp = silk_ADD32( res_nrg0, res_nrg1 );
/* Compare with first half energy without NLSF interpolation, or best interpolated value so far */
shift = res_nrg_interp_Q - res_nrg_Q;
if( shift >= 0 ) {
if( SKP_RSHIFT( res_nrg_interp, shift ) < res_nrg ) {
isInterpLower = SKP_TRUE;
if( silk_RSHIFT( res_nrg_interp, shift ) < res_nrg ) {
isInterpLower = silk_TRUE;
} else {
isInterpLower = SKP_FALSE;
isInterpLower = silk_FALSE;
}
} else {
if( -shift < 32 ) {
if( res_nrg_interp < SKP_RSHIFT( res_nrg, -shift ) ) {
isInterpLower = SKP_TRUE;
if( res_nrg_interp < silk_RSHIFT( res_nrg, -shift ) ) {
isInterpLower = silk_TRUE;
} else {
isInterpLower = SKP_FALSE;
isInterpLower = silk_FALSE;
}
} else {
isInterpLower = SKP_FALSE;
isInterpLower = silk_FALSE;
}
}
/* Determine whether current interpolated NLSFs are best so far */
if( isInterpLower == SKP_TRUE ) {
if( isInterpLower == silk_TRUE ) {
/* Interpolation has lower residual energy */
res_nrg = res_nrg_interp;
res_nrg_Q = res_nrg_interp_Q;
......@@ -157,5 +157,5 @@ void silk_find_LPC_FIX(
silk_A2NLSF( NLSF_Q15, a_Q16, LPC_order );
}
SKP_assert( *interpIndex == 4 || ( useInterpNLSFs && !firstFrameAfterReset && nb_subfr == MAX_NB_SUBFR ) );
silk_assert( *interpIndex == 4 || ( useInterpNLSFs && !firstFrameAfterReset && nb_subfr == MAX_NB_SUBFR ) );
}
silk/fixed/silk_find_LTP_FIX.c
View file @ fb3a437c
......@@ -80,7 +80,7 @@ void silk_find_LTP_FIX(
/* Assure headroom */
LZs = silk_CLZ32( rr[k] );
if( LZs < LTP_CORRS_HEAD_ROOM ) {
rr[ k ] = SKP_RSHIFT_ROUND( rr[ k ], LTP_CORRS_HEAD_ROOM - LZs );
rr[ k ] = silk_RSHIFT_ROUND( rr[ k ], LTP_CORRS_HEAD_ROOM - LZs );
rr_shifts += ( LTP_CORRS_HEAD_ROOM - LZs );
}
corr_rshifts[ k ] = rr_shifts;
......@@ -89,14 +89,14 @@ void silk_find_LTP_FIX(
/* The correlation vector always has lower max abs value than rr and/or RR so head room is assured */
silk_corrVector_FIX( lag_ptr, r_ptr, subfr_length, LTP_ORDER, Rr, corr_rshifts[ k ] ); /* Rr_fix_ptr in Q( -corr_rshifts[ k ] ) */
if( corr_rshifts[ k ] > rr_shifts ) {
rr[ k ] = SKP_RSHIFT( rr[ k ], corr_rshifts[ k ] - rr_shifts ); /* rr[ k ] in Q( -corr_rshifts[ k ] ) */
rr[ k ] = silk_RSHIFT( rr[ k ], corr_rshifts[ k ] - rr_shifts ); /* rr[ k ] in Q( -corr_rshifts[ k ] ) */
}
SKP_assert( rr[ k ] >= 0 );
silk_assert( rr[ k ] >= 0 );
regu = 1;
regu = SKP_SMLAWB( regu, rr[ k ], SILK_FIX_CONST( LTP_DAMPING/3, 16 ) );
regu = SKP_SMLAWB( regu, matrix_ptr( WLTP_ptr, 0, 0, LTP_ORDER ), SILK_FIX_CONST( LTP_DAMPING/3, 16 ) );
regu = SKP_SMLAWB( regu, matrix_ptr( WLTP_ptr, LTP_ORDER-1, LTP_ORDER-1, LTP_ORDER ), SILK_FIX_CONST( LTP_DAMPING/3, 16 ) );
regu = silk_SMLAWB( regu, rr[ k ], SILK_FIX_CONST( LTP_DAMPING/3, 16 ) );
regu = silk_SMLAWB( regu, matrix_ptr( WLTP_ptr, 0, 0, LTP_ORDER ), SILK_FIX_CONST( LTP_DAMPING/3, 16 ) );
regu = silk_SMLAWB( regu, matrix_ptr( WLTP_ptr, LTP_ORDER-1, LTP_ORDER-1, LTP_ORDER ), SILK_FIX_CONST( LTP_DAMPING/3, 16 ) );
silk_regularize_correlations_FIX( WLTP_ptr, &rr[k], regu, LTP_ORDER );
silk_solve_LDL_FIX( WLTP_ptr, LTP_ORDER, Rr, b_Q16 ); /* WLTP_fix_ptr and Rr_fix_ptr both in Q(-corr_rshifts[k]) */
......@@ -108,29 +108,29 @@ void silk_find_LTP_FIX(
nrg[ k ] = silk_residual_energy16_covar_FIX( b_Q14_ptr, WLTP_ptr, Rr, rr[ k ], LTP_ORDER, 14 ); /* nrg_fix in Q( -corr_rshifts[ k ] ) */
/* temp = Wght[ k ] / ( nrg[ k ] * Wght[ k ] + 0.01f * subfr_length ); */
extra_shifts = SKP_min_int( corr_rshifts[ k ], LTP_CORRS_HEAD_ROOM );
denom32 = SKP_LSHIFT_SAT32( SKP_SMULWB( nrg[ k ], Wght_Q15[ k ] ), 1 + extra_shifts ) + /* Q( -corr_rshifts[ k ] + extra_shifts ) */
SKP_RSHIFT( SKP_SMULWB( subfr_length, 655 ), corr_rshifts[ k ] - extra_shifts ); /* Q( -corr_rshifts[ k ] + extra_shifts ) */
denom32 = SKP_max( denom32, 1 );
SKP_assert( ((opus_int64)Wght_Q15[ k ] << 16 ) < SKP_int32_MAX ); /* Wght always < 0.5 in Q0 */
temp32 = SKP_DIV32( SKP_LSHIFT( ( opus_int32 )Wght_Q15[ k ], 16 ), denom32 ); /* Q( 15 + 16 + corr_rshifts[k] - extra_shifts ) */
temp32 = SKP_RSHIFT( temp32, 31 + corr_rshifts[ k ] - extra_shifts - 26 ); /* Q26 */
extra_shifts = silk_min_int( corr_rshifts[ k ], LTP_CORRS_HEAD_ROOM );
denom32 = silk_LSHIFT_SAT32( silk_SMULWB( nrg[ k ], Wght_Q15[ k ] ), 1 + extra_shifts ) + /* Q( -corr_rshifts[ k ] + extra_shifts ) */
silk_RSHIFT( silk_SMULWB( subfr_length, 655 ), corr_rshifts[ k ] - extra_shifts ); /* Q( -corr_rshifts[ k ] + extra_shifts ) */
denom32 = silk_max( denom32, 1 );
silk_assert( ((opus_int64)Wght_Q15[ k ] << 16 ) < silk_int32_MAX ); /* Wght always < 0.5 in Q0 */
temp32 = silk_DIV32( silk_LSHIFT( ( opus_int32 )Wght_Q15[ k ], 16 ), denom32 ); /* Q( 15 + 16 + corr_rshifts[k] - extra_shifts ) */
temp32 = silk_RSHIFT( temp32, 31 + corr_rshifts[ k ] - extra_shifts - 26 ); /* Q26 */
/* Limit temp such that the below scaling never wraps around */
WLTP_max = 0;
for( i = 0; i < LTP_ORDER * LTP_ORDER; i++ ) {
WLTP_max = SKP_max( WLTP_ptr[ i ], WLTP_max );
WLTP_max = silk_max( WLTP_ptr[ i ], WLTP_max );
}
lshift = silk_CLZ32( WLTP_max ) - 1 - 3; /* keep 3 bits free for vq_nearest_neighbor_fix */
SKP_assert( 26 - 18 + lshift >= 0 );
silk_assert( 26 - 18 + lshift >= 0 );
if( 26 - 18 + lshift < 31 ) {
temp32 = SKP_min_32( temp32, SKP_LSHIFT( ( opus_int32 )1, 26 - 18 + lshift ) );
temp32 = silk_min_32( temp32, silk_LSHIFT( ( opus_int32 )1, 26 - 18 + lshift ) );
}
silk_scale_vector32_Q26_lshift_18( WLTP_ptr, temp32, LTP_ORDER * LTP_ORDER ); /* WLTP_ptr in Q( 18 - corr_rshifts[ k ] ) */
w[ k ] = matrix_ptr( WLTP_ptr, LTP_ORDER/2, LTP_ORDER/2, LTP_ORDER ); /* w in Q( 18 - corr_rshifts[ k ] ) */
SKP_assert( w[k] >= 0 );
silk_assert( w[k] >= 0 );
r_ptr += subfr_length;
b_Q14_ptr += LTP_ORDER;
......@@ -139,24 +139,24 @@ void silk_find_LTP_FIX(
maxRshifts = 0;
for( k = 0; k < nb_subfr; k++ ) {
maxRshifts = SKP_max_int( corr_rshifts[ k ], maxRshifts );
maxRshifts = silk_max_int( corr_rshifts[ k ], maxRshifts );
}
/* Compute LTP coding gain */
if( LTPredCodGain_Q7 != NULL ) {
LPC_LTP_res_nrg = 0;
LPC_res_nrg = 0;
SKP_assert( LTP_CORRS_HEAD_ROOM >= 2 ); /* Check that no overflow will happen when adding */
silk_assert( LTP_CORRS_HEAD_ROOM >= 2 ); /* Check that no overflow will happen when adding */
for( k = 0; k < nb_subfr; k++ ) {
LPC_res_nrg = SKP_ADD32( LPC_res_nrg, SKP_RSHIFT( SKP_ADD32( SKP_SMULWB( rr[ k ], Wght_Q15[ k ] ), 1 ), 1 + ( maxRshifts - corr_rshifts[ k ] ) ) ); /* Q( -maxRshifts ) */
LPC_LTP_res_nrg = SKP_ADD32( LPC_LTP_res_nrg, SKP_RSHIFT( SKP_ADD32( SKP_SMULWB( nrg[ k ], Wght_Q15[ k ] ), 1 ), 1 + ( maxRshifts - corr_rshifts[ k ] ) ) ); /* Q( -maxRshifts ) */
LPC_res_nrg = silk_ADD32( LPC_res_nrg, silk_RSHIFT( silk_ADD32( silk_SMULWB( rr[ k ], Wght_Q15[ k ] ), 1 ), 1 + ( maxRshifts - corr_rshifts[ k ] ) ) ); /* Q( -maxRshifts ) */
LPC_LTP_res_nrg = silk_ADD32( LPC_LTP_res_nrg, silk_RSHIFT( silk_ADD32( silk_SMULWB( nrg[ k ], Wght_Q15[ k ] ), 1 ), 1 + ( maxRshifts - corr_rshifts[ k ] ) ) ); /* Q( -maxRshifts ) */
}
LPC_LTP_res_nrg = SKP_max( LPC_LTP_res_nrg, 1 ); /* avoid division by zero */
LPC_LTP_res_nrg = silk_max( LPC_LTP_res_nrg, 1 ); /* avoid division by zero */
div_Q16 = silk_DIV32_varQ( LPC_res_nrg, LPC_LTP_res_nrg, 16 );
*LTPredCodGain_Q7 = ( opus_int )SKP_SMULBB( 3, silk_lin2log( div_Q16 ) - ( 16 << 7 ) );
*LTPredCodGain_Q7 = ( opus_int )silk_SMULBB( 3, silk_lin2log( div_Q16 ) - ( 16 << 7 ) );
SKP_assert( *LTPredCodGain_Q7 == ( opus_int )SKP_SAT16( SKP_MUL( 3, silk_lin2log( div_Q16 ) - ( 16 << 7 ) ) ) );
silk_assert( *LTPredCodGain_Q7 == ( opus_int )silk_SAT16( silk_MUL( 3, silk_lin2log( div_Q16 ) - ( 16 << 7 ) ) ) );
}
/* smoothing */
......@@ -176,30 +176,30 @@ void silk_find_LTP_FIX(
max_abs_d_Q14 = 0;
max_w_bits = 0;
for( k = 0; k < nb_subfr; k++ ) {
max_abs_d_Q14 = SKP_max_32( max_abs_d_Q14, SKP_abs( d_Q14[ k ] ) );
max_abs_d_Q14 = silk_max_32( max_abs_d_Q14, silk_abs( d_Q14[ k ] ) );
/* w[ k ] is in Q( 18 - corr_rshifts[ k ] ) */
/* Find bits needed in Q( 18 - maxRshifts ) */
max_w_bits = SKP_max_32( max_w_bits, 32 - silk_CLZ32( w[ k ] ) + corr_rshifts[ k ] - maxRshifts );
max_w_bits = silk_max_32( max_w_bits, 32 - silk_CLZ32( w[ k ] ) + corr_rshifts[ k ] - maxRshifts );
}
/* max_abs_d_Q14 = (5 << 15); worst case, i.e. LTP_ORDER * -SKP_int16_MIN */
SKP_assert( max_abs_d_Q14 <= ( 5 << 15 ) );
/* max_abs_d_Q14 = (5 << 15); worst case, i.e. LTP_ORDER * -silk_int16_MIN */
silk_assert( max_abs_d_Q14 <= ( 5 << 15 ) );
/* How many bits is needed for w*d' in Q( 18 - maxRshifts ) in the worst case, of all d_Q14's being equal to max_abs_d_Q14 */
extra_shifts = max_w_bits + 32 - silk_CLZ32( max_abs_d_Q14 ) - 14;
/* Subtract what we got available; bits in output var plus maxRshifts */
extra_shifts -= ( 32 - 1 - 2 + maxRshifts ); /* Keep sign bit free as well as 2 bits for accumulation */
extra_shifts = SKP_max_int( extra_shifts, 0 );
extra_shifts = silk_max_int( extra_shifts, 0 );
maxRshifts_wxtra = maxRshifts + extra_shifts;
temp32 = SKP_RSHIFT( 262, maxRshifts + extra_shifts ) + 1; /* 1e-3f in Q( 18 - (maxRshifts + extra_shifts) ) */
temp32 = silk_RSHIFT( 262, maxRshifts + extra_shifts ) + 1; /* 1e-3f in Q( 18 - (maxRshifts + extra_shifts) ) */
wd = 0;
for( k = 0; k < nb_subfr; k++ ) {
/* w has at least 2 bits of headroom so no overflow should happen */
temp32 = SKP_ADD32( temp32, SKP_RSHIFT( w[ k ], maxRshifts_wxtra - corr_rshifts[ k ] ) ); /* Q( 18 - maxRshifts_wxtra ) */
wd = SKP_ADD32( wd, SKP_LSHIFT( SKP_SMULWW( SKP_RSHIFT( w[ k ], maxRshifts_wxtra - corr_rshifts[ k ] ), d_Q14[ k ] ), 2 ) ); /* Q( 18 - maxRshifts_wxtra ) */
temp32 = silk_ADD32( temp32, silk_RSHIFT( w[ k ], maxRshifts_wxtra - corr_rshifts[ k ] ) ); /* Q( 18 - maxRshifts_wxtra ) */
wd = silk_ADD32( wd, silk_LSHIFT( silk_SMULWW( silk_RSHIFT( w[ k ], maxRshifts_wxtra - corr_rshifts[ k ] ), d_Q14[ k ] ), 2 ) ); /* Q( 18 - maxRshifts_wxtra ) */
}
m_Q12 = silk_DIV32_varQ( wd, temp32, 12 );
......@@ -207,25 +207,25 @@ void silk_find_LTP_FIX(
for( k = 0; k < nb_subfr; k++ ) {
/* w_fix[ k ] from Q( 18 - corr_rshifts[ k ] ) to Q( 16 ) */
if( 2 - corr_rshifts[k] > 0 ) {
temp32 = SKP_RSHIFT( w[ k ], 2 - corr_rshifts[ k ] );
temp32 = silk_RSHIFT( w[ k ], 2 - corr_rshifts[ k ] );
} else {
temp32 = SKP_LSHIFT_SAT32( w[ k ], corr_rshifts[ k ] - 2 );
temp32 = silk_LSHIFT_SAT32( w[ k ], corr_rshifts[ k ] - 2 );
}
g_Q26 = SKP_MUL(
SKP_DIV32(
g_Q26 = silk_MUL(
silk_DIV32(
SILK_FIX_CONST( LTP_SMOOTHING, 26 ),
SKP_RSHIFT( SILK_FIX_CONST( LTP_SMOOTHING, 26 ), 10 ) + temp32 ), /* Q10 */
SKP_LSHIFT_SAT32( SKP_SUB_SAT32( ( opus_int32 )m_Q12, SKP_RSHIFT( d_Q14[ k ], 2 ) ), 4 ) ); /* Q16 */
silk_RSHIFT( SILK_FIX_CONST( LTP_SMOOTHING, 26 ), 10 ) + temp32 ), /* Q10 */
silk_LSHIFT_SAT32( silk_SUB_SAT32( ( opus_int32 )m_Q12, silk_RSHIFT( d_Q14[ k ], 2 ) ), 4 ) ); /* Q16 */
temp32 = 0;
for( i = 0; i < LTP_ORDER; i++ ) {
delta_b_Q14[ i ] = SKP_max_16( b_Q14_ptr[ i ], 1638 ); /* 1638_Q14 = 0.1_Q0 */
delta_b_Q14[ i ] = silk_max_16( b_Q14_ptr[ i ], 1638 ); /* 1638_Q14 = 0.1_Q0 */
temp32 += delta_b_Q14[ i ]; /* Q14 */
}
temp32 = SKP_DIV32( g_Q26, temp32 ); /* Q14->Q12 */
temp32 = silk_DIV32( g_Q26, temp32 ); /* Q14->Q12 */
for( i = 0; i < LTP_ORDER; i++ ) {
b_Q14_ptr[ i ] = SKP_LIMIT_32( ( opus_int32 )b_Q14_ptr[ i ] + SKP_SMULWB( SKP_LSHIFT_SAT32( temp32, 4 ), delta_b_Q14[ i ] ), -16000, 28000 );
b_Q14_ptr[ i ] = silk_LIMIT_32( ( opus_int32 )b_Q14_ptr[ i ] + silk_SMULWB( silk_LSHIFT_SAT32( temp32, 4 ), delta_b_Q14[ i ] ), -16000, 28000 );
}
b_Q14_ptr += LTP_ORDER;
}
......@@ -240,6 +240,6 @@ void silk_fit_LTP(
opus_int i;
for( i = 0; i < LTP_ORDER; i++ ) {
LTP_coefs_Q14[ i ] = ( opus_int16 )SKP_SAT16( SKP_RSHIFT_ROUND( LTP_coefs_Q16[ i ], 2 ) );
LTP_coefs_Q14[ i ] = ( opus_int16 )silk_SAT16( silk_RSHIFT_ROUND( LTP_coefs_Q16[ i ], 2 ) );
}
}
silk/fixed/silk_find_pitch_lags_FIX.c
View file @ fb3a437c
......@@ -55,7 +55,7 @@ void silk_find_pitch_lags_FIX(
buf_len = psEnc->sCmn.la_pitch + psEnc->sCmn.frame_length + psEnc->sCmn.ltp_mem_length;
/* Safty check */
SKP_assert( buf_len >= psEnc->sCmn.pitch_LPC_win_length );
silk_assert( buf_len >= psEnc->sCmn.pitch_LPC_win_length );
x_buf = x - psEnc->sCmn.ltp_mem_length;
......@@ -73,31 +73,31 @@ void silk_find_pitch_lags_FIX(
/* Middle un - windowed samples */
Wsig_ptr += psEnc->sCmn.la_pitch;
x_buf_ptr += psEnc->sCmn.la_pitch;
SKP_memcpy( Wsig_ptr, x_buf_ptr, ( psEnc->sCmn.pitch_LPC_win_length - SKP_LSHIFT( psEnc->sCmn.la_pitch, 1 ) ) * sizeof( opus_int16 ) );
silk_memcpy( Wsig_ptr, x_buf_ptr, ( psEnc->sCmn.pitch_LPC_win_length - silk_LSHIFT( psEnc->sCmn.la_pitch, 1 ) ) * sizeof( opus_int16 ) );
/* Last LA_LTP samples */
Wsig_ptr += psEnc->sCmn.pitch_LPC_win_length - SKP_LSHIFT( psEnc->sCmn.la_pitch, 1 );
x_buf_ptr += psEnc->sCmn.pitch_LPC_win_length - SKP_LSHIFT( psEnc->sCmn.la_pitch, 1 );
Wsig_ptr += psEnc->sCmn.pitch_LPC_win_length - silk_LSHIFT( psEnc->sCmn.la_pitch, 1 );
x_buf_ptr += psEnc->sCmn.pitch_LPC_win_length - silk_LSHIFT( psEnc->sCmn.la_pitch, 1 );
silk_apply_sine_window( Wsig_ptr, x_buf_ptr, 2, psEnc->sCmn.la_pitch );
/* Calculate autocorrelation sequence */
silk_autocorr( auto_corr, &scale, Wsig, psEnc->sCmn.pitch_LPC_win_length, psEnc->sCmn.pitchEstimationLPCOrder + 1 );
/* Add white noise, as fraction of energy */
auto_corr[ 0 ] = SKP_SMLAWB( auto_corr[ 0 ], auto_corr[ 0 ], SILK_FIX_CONST( FIND_PITCH_WHITE_NOISE_FRACTION, 16 ) ) + 1;
auto_corr[ 0 ] = silk_SMLAWB( auto_corr[ 0 ], auto_corr[ 0 ], SILK_FIX_CONST( FIND_PITCH_WHITE_NOISE_FRACTION, 16 ) ) + 1;
/* Calculate the reflection coefficients using schur */
res_nrg = silk_schur( rc_Q15, auto_corr, psEnc->sCmn.pitchEstimationLPCOrder );
/* Prediction gain */
psEncCtrl->predGain_Q16 = silk_DIV32_varQ( auto_corr[ 0 ], SKP_max_int( res_nrg, 1 ), 16 );
psEncCtrl->predGain_Q16 = silk_DIV32_varQ( auto_corr[ 0 ], silk_max_int( res_nrg, 1 ), 16 );
/* Convert reflection coefficients to prediction coefficients */
silk_k2a( A_Q24, rc_Q15, psEnc->sCmn.pitchEstimationLPCOrder );
/* Convert From 32 bit Q24 to 16 bit Q12 coefs */
for( i = 0; i < psEnc->sCmn.pitchEstimationLPCOrder; i++ ) {
A_Q12[ i ] = ( opus_int16 )SKP_SAT16( SKP_RSHIFT( A_Q24[ i ], 12 ) );
A_Q12[ i ] = ( opus_int16 )silk_SAT16( silk_RSHIFT( A_Q24[ i ], 12 ) );
}
/* Do BWE */
......@@ -111,11 +111,11 @@ 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 = SKP_SMLABB( thrhld_Q15, SILK_FIX_CONST( -0.004, 15 ), psEnc->sCmn.pitchEstimationLPCOrder );
thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SILK_FIX_CONST( -0.1, 7 ), psEnc->sCmn.speech_activity_Q8 );
thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SILK_FIX_CONST( -0.15, 15 ), SKP_RSHIFT( psEnc->sCmn.prevSignalType, 1 ) );
thrhld_Q15 = SKP_SMLAWB( thrhld_Q15, SILK_FIX_CONST( -0.1, 16 ), psEnc->sCmn.input_tilt_Q15 );