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| 1 /* Copyright (c) 2014, Cisco Systems, INC |
| 2 Written by XiangMingZhu WeiZhou MinPeng YanWang |
| 3 |
| 4 Redistribution and use in source and binary forms, with or without |
| 5 modification, are permitted provided that the following conditions |
| 6 are met: |
| 7 |
| 8 - Redistributions of source code must retain the above copyright |
| 9 notice, this list of conditions and the following disclaimer. |
| 10 |
| 11 - Redistributions in binary form must reproduce the above copyright |
| 12 notice, this list of conditions and the following disclaimer in the |
| 13 documentation and/or other materials provided with the distribution. |
| 14 |
| 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 16 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 17 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 18 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER |
| 19 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 23 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 24 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 */ |
| 27 |
| 28 #ifdef HAVE_CONFIG_H |
| 29 #include "config.h" |
| 30 #endif |
| 31 |
| 32 #include <xmmintrin.h> |
| 33 #include <emmintrin.h> |
| 34 #include <smmintrin.h> |
| 35 #include "main.h" |
| 36 #include "celt/x86/x86cpu.h" |
| 37 #include "stack_alloc.h" |
| 38 |
| 39 static OPUS_INLINE void silk_nsq_scale_states_sse4_1( |
| 40 const silk_encoder_state *psEncC, /* I Encoder State
*/ |
| 41 silk_nsq_state *NSQ, /* I/O NSQ state
*/ |
| 42 const opus_int32 x_Q3[], /* I input in Q3
*/ |
| 43 opus_int32 x_sc_Q10[], /* O input scaled with 1/Gain
*/ |
| 44 const opus_int16 sLTP[], /* I re-whitened LTP state in
Q0 */ |
| 45 opus_int32 sLTP_Q15[], /* O LTP state matching scale
d input */ |
| 46 opus_int subfr, /* I subframe number
*/ |
| 47 const opus_int LTP_scale_Q14, /* I
*/ |
| 48 const opus_int32 Gains_Q16[ MAX_NB_SUBFR ], /* I
*/ |
| 49 const opus_int pitchL[ MAX_NB_SUBFR ], /* I Pitch lag
*/ |
| 50 const opus_int signal_type /* I Signal type
*/ |
| 51 ); |
| 52 |
| 53 static OPUS_INLINE void silk_noise_shape_quantizer_10_16_sse4_1( |
| 54 silk_nsq_state *NSQ, /* I/O NSQ state
*/ |
| 55 opus_int signalType, /* I Signal type
*/ |
| 56 const opus_int32 x_sc_Q10[], /* I
*/ |
| 57 opus_int8 pulses[], /* O
*/ |
| 58 opus_int16 xq[], /* O
*/ |
| 59 opus_int32 sLTP_Q15[], /* I/O LTP state
*/ |
| 60 const opus_int16 a_Q12[], /* I Short term prediction co
efs */ |
| 61 const opus_int16 b_Q14[], /* I Long term prediction coe
fs */ |
| 62 const opus_int16 AR_shp_Q13[], /* I Noise shaping AR coefs
*/ |
| 63 opus_int lag, /* I Pitch lag
*/ |
| 64 opus_int32 HarmShapeFIRPacked_Q14, /* I
*/ |
| 65 opus_int Tilt_Q14, /* I Spectral tilt
*/ |
| 66 opus_int32 LF_shp_Q14, /* I
*/ |
| 67 opus_int32 Gain_Q16, /* I
*/ |
| 68 opus_int offset_Q10, /* I
*/ |
| 69 opus_int length, /* I Input length
*/ |
| 70 opus_int32 table[][4] /* I
*/ |
| 71 ); |
| 72 |
| 73 void silk_NSQ_sse4_1( |
| 74 const silk_encoder_state *psEncC, /* I
/O Encoder State */ |
| 75 silk_nsq_state *NSQ, /* I
/O NSQ state */ |
| 76 SideInfoIndices *psIndices, /* I
/O Quantization Indices */ |
| 77 const opus_int32 x_Q3[], /* I
Prefiltered input signal */ |
| 78 opus_int8 pulses[], /* O
Quantized pulse signal */ |
| 79 const opus_int16 PredCoef_Q12[ 2 * MAX_LPC_ORDER ], /* I
Short term prediction coefs */ |
| 80 const opus_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ], /* I
Long term prediction coefs */ |
| 81 const opus_int16 AR2_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ], /
* I Noise shaping coefs */ |
| 82 const opus_int HarmShapeGain_Q14[ MAX_NB_SUBFR ], /* I
Long term shaping coefs */ |
| 83 const opus_int Tilt_Q14[ MAX_NB_SUBFR ], /* I
Spectral tilt */ |
| 84 const opus_int32 LF_shp_Q14[ MAX_NB_SUBFR ], /* I
Low frequency shaping coefs */ |
| 85 const opus_int32 Gains_Q16[ MAX_NB_SUBFR ], /* I
Quantization step sizes */ |
| 86 const opus_int pitchL[ MAX_NB_SUBFR ], /* I
Pitch lags */ |
| 87 const opus_int Lambda_Q10, /* I
Rate/distortion tradeoff */ |
| 88 const opus_int LTP_scale_Q14 /* I
LTP state scaling */ |
| 89 ) |
| 90 { |
| 91 opus_int k, lag, start_idx, LSF_interpolation_flag; |
| 92 const opus_int16 *A_Q12, *B_Q14, *AR_shp_Q13; |
| 93 opus_int16 *pxq; |
| 94 VARDECL( opus_int32, sLTP_Q15 ); |
| 95 VARDECL( opus_int16, sLTP ); |
| 96 opus_int32 HarmShapeFIRPacked_Q14; |
| 97 opus_int offset_Q10; |
| 98 VARDECL( opus_int32, x_sc_Q10 ); |
| 99 |
| 100 opus_int32 table[ 64 ][ 4 ]; |
| 101 opus_int32 tmp1; |
| 102 opus_int32 q1_Q10, q2_Q10, rd1_Q20, rd2_Q20; |
| 103 |
| 104 SAVE_STACK; |
| 105 |
| 106 NSQ->rand_seed = psIndices->Seed; |
| 107 |
| 108 /* Set unvoiced lag to the previous one, overwrite later for voiced */ |
| 109 lag = NSQ->lagPrev; |
| 110 |
| 111 silk_assert( NSQ->prev_gain_Q16 != 0 ); |
| 112 |
| 113 offset_Q10 = silk_Quantization_Offsets_Q10[ psIndices->signalType >> 1 ][ ps
Indices->quantOffsetType ]; |
| 114 |
| 115 /* 0 */ |
| 116 q1_Q10 = offset_Q10; |
| 117 q2_Q10 = offset_Q10 + ( 1024 - QUANT_LEVEL_ADJUST_Q10 ); |
| 118 rd1_Q20 = q1_Q10 * Lambda_Q10; |
| 119 rd2_Q20 = q2_Q10 * Lambda_Q10; |
| 120 |
| 121 table[ 32 ][ 0 ] = q1_Q10; |
| 122 table[ 32 ][ 1 ] = q2_Q10; |
| 123 table[ 32 ][ 2 ] = 2 * (q1_Q10 - q2_Q10); |
| 124 table[ 32 ][ 3 ] = (rd1_Q20 - rd2_Q20) + (q1_Q10 * q1_Q10 - q2_Q10 * q2_Q10)
; |
| 125 |
| 126 /* -1 */ |
| 127 q1_Q10 = offset_Q10 - ( 1024 - QUANT_LEVEL_ADJUST_Q10 ); |
| 128 q2_Q10 = offset_Q10; |
| 129 rd1_Q20 = - q1_Q10 * Lambda_Q10; |
| 130 rd2_Q20 = q2_Q10 * Lambda_Q10; |
| 131 |
| 132 table[ 31 ][ 0 ] = q1_Q10; |
| 133 table[ 31 ][ 1 ] = q2_Q10; |
| 134 table[ 31 ][ 2 ] = 2 * (q1_Q10 - q2_Q10); |
| 135 table[ 31 ][ 3 ] = (rd1_Q20 - rd2_Q20) + (q1_Q10 * q1_Q10 - q2_Q10 * q2_Q10)
; |
| 136 |
| 137 /* > 0 */ |
| 138 for (k = 1; k <= 31; k++) |
| 139 { |
| 140 tmp1 = offset_Q10 + silk_LSHIFT( k, 10 ); |
| 141 |
| 142 q1_Q10 = tmp1 - QUANT_LEVEL_ADJUST_Q10; |
| 143 q2_Q10 = tmp1 - QUANT_LEVEL_ADJUST_Q10 + 1024; |
| 144 rd1_Q20 = q1_Q10 * Lambda_Q10; |
| 145 rd2_Q20 = q2_Q10 * Lambda_Q10; |
| 146 |
| 147 table[ 32 + k ][ 0 ] = q1_Q10; |
| 148 table[ 32 + k ][ 1 ] = q2_Q10; |
| 149 table[ 32 + k ][ 2 ] = 2 * (q1_Q10 - q2_Q10); |
| 150 table[ 32 + k ][ 3 ] = (rd1_Q20 - rd2_Q20) + (q1_Q10 * q1_Q10 - q2_Q10 *
q2_Q10); |
| 151 } |
| 152 |
| 153 /* < -1 */ |
| 154 for (k = -32; k <= -2; k++) |
| 155 { |
| 156 tmp1 = offset_Q10 + silk_LSHIFT( k, 10 ); |
| 157 |
| 158 q1_Q10 = tmp1 + QUANT_LEVEL_ADJUST_Q10; |
| 159 q2_Q10 = tmp1 + QUANT_LEVEL_ADJUST_Q10 + 1024; |
| 160 rd1_Q20 = - q1_Q10 * Lambda_Q10; |
| 161 rd2_Q20 = - q2_Q10 * Lambda_Q10; |
| 162 |
| 163 table[ 32 + k ][ 0 ] = q1_Q10; |
| 164 table[ 32 + k ][ 1 ] = q2_Q10; |
| 165 table[ 32 + k ][ 2 ] = 2 * (q1_Q10 - q2_Q10); |
| 166 table[ 32 + k ][ 3 ] = (rd1_Q20 - rd2_Q20) + (q1_Q10 * q1_Q10 - q2_Q10 *
q2_Q10); |
| 167 } |
| 168 |
| 169 if( psIndices->NLSFInterpCoef_Q2 == 4 ) { |
| 170 LSF_interpolation_flag = 0; |
| 171 } else { |
| 172 LSF_interpolation_flag = 1; |
| 173 } |
| 174 |
| 175 ALLOC( sLTP_Q15, |
| 176 psEncC->ltp_mem_length + psEncC->frame_length, opus_int32 ); |
| 177 ALLOC( sLTP, psEncC->ltp_mem_length + psEncC->frame_length, opus_int16 ); |
| 178 ALLOC( x_sc_Q10, psEncC->subfr_length, opus_int32 ); |
| 179 /* Set up pointers to start of sub frame */ |
| 180 NSQ->sLTP_shp_buf_idx = psEncC->ltp_mem_length; |
| 181 NSQ->sLTP_buf_idx = psEncC->ltp_mem_length; |
| 182 pxq = &NSQ->xq[ psEncC->ltp_mem_length ]; |
| 183 for( k = 0; k < psEncC->nb_subfr; k++ ) { |
| 184 A_Q12 = &PredCoef_Q12[ (( k >> 1 ) | ( 1 - LSF_interpolation_flag )
) * MAX_LPC_ORDER ]; |
| 185 B_Q14 = <PCoef_Q14[ k * LTP_ORDER ]; |
| 186 AR_shp_Q13 = &AR2_Q13[ k * MAX_SHAPE_LPC_ORDER ]; |
| 187 |
| 188 /* Noise shape parameters */ |
| 189 silk_assert( HarmShapeGain_Q14[ k ] >= 0 ); |
| 190 HarmShapeFIRPacked_Q14 = silk_RSHIFT( HarmShap
eGain_Q14[ k ], 2 ); |
| 191 HarmShapeFIRPacked_Q14 |= silk_LSHIFT( (opus_int32)silk_RSHIFT( HarmShap
eGain_Q14[ k ], 1 ), 16 ); |
| 192 |
| 193 NSQ->rewhite_flag = 0; |
| 194 if( psIndices->signalType == TYPE_VOICED ) { |
| 195 /* Voiced */ |
| 196 lag = pitchL[ k ]; |
| 197 |
| 198 /* Re-whitening */ |
| 199 if( ( k & ( 3 - silk_LSHIFT( LSF_interpolation_flag, 1 ) ) ) == 0 )
{ |
| 200 /* Rewhiten with new A coefs */ |
| 201 start_idx = psEncC->ltp_mem_length - lag - psEncC->predictLPCOrd
er - LTP_ORDER / 2; |
| 202 silk_assert( start_idx > 0 ); |
| 203 |
| 204 silk_LPC_analysis_filter( &sLTP[ start_idx ], &NSQ->xq[ start_id
x + k * psEncC->subfr_length ], |
| 205 A_Q12, psEncC->ltp_mem_length - start_idx, psEncC->predictLP
COrder, psEncC->arch ); |
| 206 |
| 207 NSQ->rewhite_flag = 1; |
| 208 NSQ->sLTP_buf_idx = psEncC->ltp_mem_length; |
| 209 } |
| 210 } |
| 211 |
| 212 silk_nsq_scale_states_sse4_1( psEncC, NSQ, x_Q3, x_sc_Q10, sLTP, sLTP_Q1
5, k, LTP_scale_Q14, Gains_Q16, pitchL, psIndices->signalType ); |
| 213 |
| 214 if ( opus_likely( ( 10 == psEncC->shapingLPCOrder ) && ( 16 == psEncC->p
redictLPCOrder) ) ) |
| 215 { |
| 216 silk_noise_shape_quantizer_10_16_sse4_1( NSQ, psIndices->signalType,
x_sc_Q10, pulses, pxq, sLTP_Q15, A_Q12, B_Q14, |
| 217 AR_shp_Q13, lag, HarmShapeFIRPacked_Q14, Tilt_Q14[ k ], LF_shp_Q
14[ k ], Gains_Q16[ k ], |
| 218 offset_Q10, psEncC->subfr_length, &(table[32]) ); |
| 219 } |
| 220 else |
| 221 { |
| 222 silk_noise_shape_quantizer( NSQ, psIndices->signalType, x_sc_Q10, pu
lses, pxq, sLTP_Q15, A_Q12, B_Q14, |
| 223 AR_shp_Q13, lag, HarmShapeFIRPacked_Q14, Tilt_Q14[ k ], LF_shp_Q
14[ k ], Gains_Q16[ k ], Lambda_Q10, |
| 224 offset_Q10, psEncC->subfr_length, psEncC->shapingLPCOrder, psEnc
C->predictLPCOrder ); |
| 225 } |
| 226 |
| 227 x_Q3 += psEncC->subfr_length; |
| 228 pulses += psEncC->subfr_length; |
| 229 pxq += psEncC->subfr_length; |
| 230 } |
| 231 |
| 232 /* Update lagPrev for next frame */ |
| 233 NSQ->lagPrev = pitchL[ psEncC->nb_subfr - 1 ]; |
| 234 |
| 235 /* Save quantized speech and noise shaping signals */ |
| 236 /* DEBUG_STORE_DATA( enc.pcm, &NSQ->xq[ psEncC->ltp_mem_length ], psEncC->fr
ame_length * sizeof( opus_int16 ) ) */ |
| 237 silk_memmove( NSQ->xq, &NSQ->xq[ psEncC->frame_length ],
psEncC->ltp_mem_length * sizeof( opus_int16 ) ); |
| 238 silk_memmove( NSQ->sLTP_shp_Q14, &NSQ->sLTP_shp_Q14[ psEncC->frame_length ],
psEncC->ltp_mem_length * sizeof( opus_int32 ) ); |
| 239 RESTORE_STACK; |
| 240 } |
| 241 |
| 242 /***********************************/ |
| 243 /* silk_noise_shape_quantizer_10_16 */ |
| 244 /***********************************/ |
| 245 static OPUS_INLINE void silk_noise_shape_quantizer_10_16_sse4_1( |
| 246 silk_nsq_state *NSQ, /* I/O NSQ state
*/ |
| 247 opus_int signalType, /* I Signal type
*/ |
| 248 const opus_int32 x_sc_Q10[], /* I
*/ |
| 249 opus_int8 pulses[], /* O
*/ |
| 250 opus_int16 xq[], /* O
*/ |
| 251 opus_int32 sLTP_Q15[], /* I/O LTP state
*/ |
| 252 const opus_int16 a_Q12[], /* I Short term prediction co
efs */ |
| 253 const opus_int16 b_Q14[], /* I Long term prediction coe
fs */ |
| 254 const opus_int16 AR_shp_Q13[], /* I Noise shaping AR coefs
*/ |
| 255 opus_int lag, /* I Pitch lag
*/ |
| 256 opus_int32 HarmShapeFIRPacked_Q14, /* I
*/ |
| 257 opus_int Tilt_Q14, /* I Spectral tilt
*/ |
| 258 opus_int32 LF_shp_Q14, /* I
*/ |
| 259 opus_int32 Gain_Q16, /* I
*/ |
| 260 opus_int offset_Q10, /* I
*/ |
| 261 opus_int length, /* I Input length
*/ |
| 262 opus_int32 table[][4] /* I
*/ |
| 263 ) |
| 264 { |
| 265 opus_int i; |
| 266 opus_int32 LTP_pred_Q13, LPC_pred_Q10, n_AR_Q12, n_LTP_Q13; |
| 267 opus_int32 n_LF_Q12, r_Q10, q1_Q0, q1_Q10, q2_Q10; |
| 268 opus_int32 exc_Q14, LPC_exc_Q14, xq_Q14, Gain_Q10; |
| 269 opus_int32 tmp1, tmp2, sLF_AR_shp_Q14; |
| 270 opus_int32 *psLPC_Q14, *shp_lag_ptr, *pred_lag_ptr; |
| 271 |
| 272 __m128i xmm_tempa, xmm_tempb; |
| 273 |
| 274 __m128i xmm_one; |
| 275 |
| 276 __m128i psLPC_Q14_hi_01234567, psLPC_Q14_hi_89ABCDEF; |
| 277 __m128i psLPC_Q14_lo_01234567, psLPC_Q14_lo_89ABCDEF; |
| 278 __m128i a_Q12_01234567, a_Q12_89ABCDEF; |
| 279 |
| 280 __m128i sAR2_Q14_hi_76543210, sAR2_Q14_lo_76543210; |
| 281 __m128i AR_shp_Q13_76543210; |
| 282 |
| 283 shp_lag_ptr = &NSQ->sLTP_shp_Q14[ NSQ->sLTP_shp_buf_idx - lag + HARM_SHAPE_
FIR_TAPS / 2 ]; |
| 284 pred_lag_ptr = &sLTP_Q15[ NSQ->sLTP_buf_idx - lag + LTP_ORDER / 2 ]; |
| 285 Gain_Q10 = silk_RSHIFT( Gain_Q16, 6 ); |
| 286 |
| 287 /* Set up short term AR state */ |
| 288 psLPC_Q14 = &NSQ->sLPC_Q14[ NSQ_LPC_BUF_LENGTH - 1 ]; |
| 289 |
| 290 sLF_AR_shp_Q14 = NSQ->sLF_AR_shp_Q14; |
| 291 xq_Q14 = psLPC_Q14[ 0 ]; |
| 292 LTP_pred_Q13 = 0; |
| 293 |
| 294 /* load a_Q12 */ |
| 295 xmm_one = _mm_set_epi8( 1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14
); |
| 296 |
| 297 /* load a_Q12[0] - a_Q12[7] */ |
| 298 a_Q12_01234567 = _mm_loadu_si128( (__m128i *)(&a_Q12[ 0 ] ) ); |
| 299 /* load a_Q12[ 8 ] - a_Q12[ 15 ] */ |
| 300 a_Q12_89ABCDEF = _mm_loadu_si128( (__m128i *)(&a_Q12[ 8 ] ) ); |
| 301 |
| 302 a_Q12_01234567 = _mm_shuffle_epi8( a_Q12_01234567, xmm_one ); |
| 303 a_Q12_89ABCDEF = _mm_shuffle_epi8( a_Q12_89ABCDEF, xmm_one ); |
| 304 |
| 305 /* load AR_shp_Q13 */ |
| 306 AR_shp_Q13_76543210 = _mm_loadu_si128( (__m128i *)(&AR_shp_Q13[0] ) ); |
| 307 |
| 308 /* load psLPC_Q14 */ |
| 309 xmm_one = _mm_set_epi8(15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0
); |
| 310 |
| 311 xmm_tempa = _mm_loadu_si128( (__m128i *)(&psLPC_Q14[-16]) ); |
| 312 xmm_tempb = _mm_loadu_si128( (__m128i *)(&psLPC_Q14[-12]) ); |
| 313 |
| 314 xmm_tempa = _mm_shuffle_epi8( xmm_tempa, xmm_one ); |
| 315 xmm_tempb = _mm_shuffle_epi8( xmm_tempb, xmm_one ); |
| 316 |
| 317 psLPC_Q14_hi_89ABCDEF = _mm_unpackhi_epi64( xmm_tempa, xmm_tempb ); |
| 318 psLPC_Q14_lo_89ABCDEF = _mm_unpacklo_epi64( xmm_tempa, xmm_tempb ); |
| 319 |
| 320 xmm_tempa = _mm_loadu_si128( (__m128i *)(&psLPC_Q14[ -8 ]) ); |
| 321 xmm_tempb = _mm_loadu_si128( (__m128i *)(&psLPC_Q14[ -4 ]) ); |
| 322 |
| 323 xmm_tempa = _mm_shuffle_epi8( xmm_tempa, xmm_one ); |
| 324 xmm_tempb = _mm_shuffle_epi8( xmm_tempb, xmm_one ); |
| 325 |
| 326 psLPC_Q14_hi_01234567 = _mm_unpackhi_epi64( xmm_tempa, xmm_tempb ); |
| 327 psLPC_Q14_lo_01234567 = _mm_unpacklo_epi64( xmm_tempa, xmm_tempb ); |
| 328 |
| 329 /* load sAR2_Q14 */ |
| 330 xmm_tempa = _mm_loadu_si128( (__m128i *)(&(NSQ->sAR2_Q14[ 0 ]) ) ); |
| 331 xmm_tempb = _mm_loadu_si128( (__m128i *)(&(NSQ->sAR2_Q14[ 4 ]) ) ); |
| 332 |
| 333 xmm_tempa = _mm_shuffle_epi8( xmm_tempa, xmm_one ); |
| 334 xmm_tempb = _mm_shuffle_epi8( xmm_tempb, xmm_one ); |
| 335 |
| 336 sAR2_Q14_hi_76543210 = _mm_unpackhi_epi64( xmm_tempa, xmm_tempb ); |
| 337 sAR2_Q14_lo_76543210 = _mm_unpacklo_epi64( xmm_tempa, xmm_tempb ); |
| 338 |
| 339 /* prepare 1 in 8 * 16bit */ |
| 340 xmm_one = _mm_set1_epi16(1); |
| 341 |
| 342 for( i = 0; i < length; i++ ) |
| 343 { |
| 344 /* Short-term prediction */ |
| 345 __m128i xmm_hi_07, xmm_hi_8F, xmm_lo_07, xmm_lo_8F; |
| 346 |
| 347 /* Avoids introducing a bias because silk_SMLAWB() always rounds to -inf
*/ |
| 348 LPC_pred_Q10 = 8; /* silk_RSHIFT( predictLPCOrder, 1 ); */ |
| 349 |
| 350 /* shift psLPC_Q14 */ |
| 351 psLPC_Q14_hi_89ABCDEF = _mm_alignr_epi8( psLPC_Q14_hi_01234567, psLPC_Q1
4_hi_89ABCDEF, 2 ); |
| 352 psLPC_Q14_lo_89ABCDEF = _mm_alignr_epi8( psLPC_Q14_lo_01234567, psLPC_Q1
4_lo_89ABCDEF, 2 ); |
| 353 |
| 354 psLPC_Q14_hi_01234567 = _mm_srli_si128( psLPC_Q14_hi_01234567, 2 ); |
| 355 psLPC_Q14_lo_01234567 = _mm_srli_si128( psLPC_Q14_lo_01234567, 2 ); |
| 356 |
| 357 psLPC_Q14_hi_01234567 = _mm_insert_epi16( psLPC_Q14_hi_01234567, (xq_Q14
>> 16), 7 ); |
| 358 psLPC_Q14_lo_01234567 = _mm_insert_epi16( psLPC_Q14_lo_01234567, (xq_Q14
), 7 ); |
| 359 |
| 360 /* high part, use pmaddwd, results in 4 32-bit */ |
| 361 xmm_hi_07 = _mm_madd_epi16( psLPC_Q14_hi_01234567, a_Q12_01234567 ); |
| 362 xmm_hi_8F = _mm_madd_epi16( psLPC_Q14_hi_89ABCDEF, a_Q12_89ABCDEF ); |
| 363 |
| 364 /* low part, use pmulhw, results in 8 16-bit, note we need simulate unsi
gned * signed, _mm_srai_epi16(psLPC_Q14_lo_01234567, 15) */ |
| 365 xmm_tempa = _mm_cmpgt_epi16( _mm_setzero_si128(), psLPC_Q14_lo_01234567
); |
| 366 xmm_tempb = _mm_cmpgt_epi16( _mm_setzero_si128(), psLPC_Q14_lo_89ABCDEF
); |
| 367 |
| 368 xmm_tempa = _mm_and_si128( xmm_tempa, a_Q12_01234567 ); |
| 369 xmm_tempb = _mm_and_si128( xmm_tempb, a_Q12_89ABCDEF ); |
| 370 |
| 371 xmm_lo_07 = _mm_mulhi_epi16( psLPC_Q14_lo_01234567, a_Q12_01234567 ); |
| 372 xmm_lo_8F = _mm_mulhi_epi16( psLPC_Q14_lo_89ABCDEF, a_Q12_89ABCDEF ); |
| 373 |
| 374 xmm_lo_07 = _mm_add_epi16( xmm_lo_07, xmm_tempa ); |
| 375 xmm_lo_8F = _mm_add_epi16( xmm_lo_8F, xmm_tempb ); |
| 376 |
| 377 xmm_lo_07 = _mm_madd_epi16( xmm_lo_07, xmm_one ); |
| 378 xmm_lo_8F = _mm_madd_epi16( xmm_lo_8F, xmm_one ); |
| 379 |
| 380 /* accumulate */ |
| 381 xmm_hi_07 = _mm_add_epi32( xmm_hi_07, xmm_hi_8F ); |
| 382 xmm_lo_07 = _mm_add_epi32( xmm_lo_07, xmm_lo_8F ); |
| 383 |
| 384 xmm_hi_07 = _mm_add_epi32( xmm_hi_07, xmm_lo_07 ); |
| 385 |
| 386 xmm_hi_07 = _mm_add_epi32( xmm_hi_07, _mm_unpackhi_epi64(xmm_hi_07, xmm_
hi_07 ) ); |
| 387 xmm_hi_07 = _mm_add_epi32( xmm_hi_07, _mm_shufflelo_epi16(xmm_hi_07, 0x0
E ) ); |
| 388 |
| 389 LPC_pred_Q10 += _mm_cvtsi128_si32( xmm_hi_07 ); |
| 390 |
| 391 /* Long-term prediction */ |
| 392 if ( opus_likely( signalType == TYPE_VOICED ) ) { |
| 393 /* Unrolled loop */ |
| 394 /* Avoids introducing a bias because silk_SMLAWB() always rounds to
-inf */ |
| 395 LTP_pred_Q13 = 2; |
| 396 { |
| 397 __m128i b_Q14_3210, b_Q14_0123, pred_lag_ptr_0123; |
| 398 |
| 399 b_Q14_3210 = OP_CVTEPI16_EPI32_M64( b_Q14 ); |
| 400 b_Q14_0123 = _mm_shuffle_epi32( b_Q14_3210, 0x1B ); |
| 401 |
| 402 /* loaded: [0] [-1] [-2] [-3] */ |
| 403 pred_lag_ptr_0123 = _mm_loadu_si128( (__m128i *)(&pred_lag_ptr[
-3 ] ) ); |
| 404 /* shuffle to [-3] [-2] [-1] [0] and to new xmm */ |
| 405 xmm_tempa = _mm_shuffle_epi32( pred_lag_ptr_0123, 0x1B ); |
| 406 /*64-bit multiply, a[2] * b[-2], a[0] * b[0] */ |
| 407 xmm_tempa = _mm_mul_epi32( xmm_tempa, b_Q14_3210 ); |
| 408 /* right shift 2 bytes (16 bits), zero extended */ |
| 409 xmm_tempa = _mm_srli_si128( xmm_tempa, 2 ); |
| 410 |
| 411 /* a[1] * b[-1], a[3] * b[-3] */ |
| 412 pred_lag_ptr_0123 = _mm_mul_epi32( pred_lag_ptr_0123, b_Q14_0123
); |
| 413 pred_lag_ptr_0123 = _mm_srli_si128( pred_lag_ptr_0123, 2 ); |
| 414 |
| 415 pred_lag_ptr_0123 = _mm_add_epi32( pred_lag_ptr_0123, xmm_tempa
); |
| 416 /* equal shift right 8 bytes*/ |
| 417 xmm_tempa = _mm_shuffle_epi32( pred_lag_ptr_0123, _MM_SHUFFLE( 0
, 0, 3, 2 ) ); |
| 418 xmm_tempa = _mm_add_epi32( xmm_tempa, pred_lag_ptr_0123 ); |
| 419 |
| 420 LTP_pred_Q13 += _mm_cvtsi128_si32( xmm_tempa ); |
| 421 |
| 422 LTP_pred_Q13 = silk_SMLAWB( LTP_pred_Q13, pred_lag_ptr[ -4 ], b_
Q14[ 4 ] ); |
| 423 pred_lag_ptr++; |
| 424 } |
| 425 } |
| 426 |
| 427 /* Noise shape feedback */ |
| 428 NSQ->sAR2_Q14[ 9 ] = NSQ->sAR2_Q14[ 8 ]; |
| 429 NSQ->sAR2_Q14[ 8 ] = _mm_cvtsi128_si32( _mm_srli_si128(_mm_unpackhi_epi1
6( sAR2_Q14_lo_76543210, sAR2_Q14_hi_76543210 ), 12 ) ); |
| 430 |
| 431 sAR2_Q14_hi_76543210 = _mm_slli_si128( sAR2_Q14_hi_76543210, 2 ); |
| 432 sAR2_Q14_lo_76543210 = _mm_slli_si128( sAR2_Q14_lo_76543210, 2 ); |
| 433 |
| 434 sAR2_Q14_hi_76543210 = _mm_insert_epi16( sAR2_Q14_hi_76543210, (xq_Q14 >
> 16), 0 ); |
| 435 sAR2_Q14_lo_76543210 = _mm_insert_epi16( sAR2_Q14_lo_76543210, (xq_Q14),
0 ); |
| 436 |
| 437 /* high part, use pmaddwd, results in 4 32-bit */ |
| 438 xmm_hi_07 = _mm_madd_epi16( sAR2_Q14_hi_76543210, AR_shp_Q13_76543210 ); |
| 439 |
| 440 /* low part, use pmulhw, results in 8 16-bit, note we need simulate unsi
gned * signed,_mm_srai_epi16(sAR2_Q14_lo_76543210, 15) */ |
| 441 xmm_tempa = _mm_cmpgt_epi16( _mm_setzero_si128(), sAR2_Q14_lo_76543210 )
; |
| 442 xmm_tempa = _mm_and_si128( xmm_tempa, AR_shp_Q13_76543210 ); |
| 443 |
| 444 xmm_lo_07 = _mm_mulhi_epi16( sAR2_Q14_lo_76543210, AR_shp_Q13_76543210 )
; |
| 445 xmm_lo_07 = _mm_add_epi16( xmm_lo_07, xmm_tempa ); |
| 446 |
| 447 xmm_lo_07 = _mm_madd_epi16( xmm_lo_07, xmm_one ); |
| 448 |
| 449 /* accumulate */ |
| 450 xmm_hi_07 = _mm_add_epi32( xmm_hi_07, xmm_lo_07 ); |
| 451 |
| 452 xmm_hi_07 = _mm_add_epi32( xmm_hi_07, _mm_unpackhi_epi64(xmm_hi_07, xmm_
hi_07 ) ); |
| 453 xmm_hi_07 = _mm_add_epi32( xmm_hi_07, _mm_shufflelo_epi16(xmm_hi_07, 0x0
E ) ); |
| 454 |
| 455 n_AR_Q12 = 5 + _mm_cvtsi128_si32( xmm_hi_07 ); |
| 456 |
| 457 n_AR_Q12 = silk_SMLAWB( n_AR_Q12, NSQ->sAR2_Q14[ 8 ], AR_shp_Q13[ 8 ] ); |
| 458 n_AR_Q12 = silk_SMLAWB( n_AR_Q12, NSQ->sAR2_Q14[ 9 ], AR_shp_Q13[ 9 ] ); |
| 459 |
| 460 n_AR_Q12 = silk_LSHIFT32( n_AR_Q12, 1 );
/* Q11 -> Q12 */ |
| 461 n_AR_Q12 = silk_SMLAWB( n_AR_Q12, sLF_AR_shp_Q14, Tilt_Q14 ); |
| 462 |
| 463 n_LF_Q12 = silk_SMULWB( NSQ->sLTP_shp_Q14[ NSQ->sLTP_shp_buf_idx - 1 ],
LF_shp_Q14 ); |
| 464 n_LF_Q12 = silk_SMLAWT( n_LF_Q12, sLF_AR_shp_Q14, LF_shp_Q14 ); |
| 465 |
| 466 silk_assert( lag > 0 || signalType != TYPE_VOICED ); |
| 467 |
| 468 /* Combine prediction and noise shaping signals */ |
| 469 tmp1 = silk_SUB32( silk_LSHIFT32( LPC_pred_Q10, 2 ), n_AR_Q12 );
/* Q12 */ |
| 470 tmp1 = silk_SUB32( tmp1, n_LF_Q12 );
/* Q12 */ |
| 471 if( lag > 0 ) { |
| 472 /* Symmetric, packed FIR coefficients */ |
| 473 n_LTP_Q13 = silk_SMULWB( silk_ADD32( shp_lag_ptr[ 0 ], shp_lag_ptr[
-2 ] ), HarmShapeFIRPacked_Q14 ); |
| 474 n_LTP_Q13 = silk_SMLAWT( n_LTP_Q13, shp_lag_ptr[ -1 ],
HarmShapeFIRPacked_Q14 ); |
| 475 n_LTP_Q13 = silk_LSHIFT( n_LTP_Q13, 1 ); |
| 476 shp_lag_ptr++; |
| 477 |
| 478 tmp2 = silk_SUB32( LTP_pred_Q13, n_LTP_Q13 );
/* Q13 */ |
| 479 tmp1 = silk_ADD_LSHIFT32( tmp2, tmp1, 1 );
/* Q13 */ |
| 480 tmp1 = silk_RSHIFT_ROUND( tmp1, 3 );
/* Q10 */ |
| 481 } else { |
| 482 tmp1 = silk_RSHIFT_ROUND( tmp1, 2 );
/* Q10 */ |
| 483 } |
| 484 |
| 485 r_Q10 = silk_SUB32( x_sc_Q10[ i ], tmp1 );
/* residual error Q10 */ |
| 486 |
| 487 /* Generate dither */ |
| 488 NSQ->rand_seed = silk_RAND( NSQ->rand_seed ); |
| 489 |
| 490 /* Flip sign depending on dither */ |
| 491 tmp2 = -r_Q10; |
| 492 if ( NSQ->rand_seed < 0 ) r_Q10 = tmp2; |
| 493 |
| 494 r_Q10 = silk_LIMIT_32( r_Q10, -(31 << 10), 30 << 10 ); |
| 495 |
| 496 /* Find two quantization level candidates and measure their rate-distort
ion */ |
| 497 q1_Q10 = silk_SUB32( r_Q10, offset_Q10 ); |
| 498 q1_Q0 = silk_RSHIFT( q1_Q10, 10 ); |
| 499 |
| 500 q1_Q10 = table[q1_Q0][0]; |
| 501 q2_Q10 = table[q1_Q0][1]; |
| 502 |
| 503 if (r_Q10 * table[q1_Q0][2] - table[q1_Q0][3] < 0) |
| 504 { |
| 505 q1_Q10 = q2_Q10; |
| 506 } |
| 507 |
| 508 pulses[ i ] = (opus_int8)silk_RSHIFT_ROUND( q1_Q10, 10 ); |
| 509 |
| 510 /* Excitation */ |
| 511 exc_Q14 = silk_LSHIFT( q1_Q10, 4 ); |
| 512 |
| 513 tmp2 = -exc_Q14; |
| 514 if ( NSQ->rand_seed < 0 ) exc_Q14 = tmp2; |
| 515 |
| 516 /* Add predictions */ |
| 517 LPC_exc_Q14 = silk_ADD_LSHIFT32( exc_Q14, LTP_pred_Q13, 1 ); |
| 518 xq_Q14 = silk_ADD_LSHIFT32( LPC_exc_Q14, LPC_pred_Q10, 4 ); |
| 519 |
| 520 /* Update states */ |
| 521 psLPC_Q14++; |
| 522 *psLPC_Q14 = xq_Q14; |
| 523 sLF_AR_shp_Q14 = silk_SUB_LSHIFT32( xq_Q14, n_AR_Q12, 2 ); |
| 524 |
| 525 NSQ->sLTP_shp_Q14[ NSQ->sLTP_shp_buf_idx ] = silk_SUB_LSHIFT32( sLF_AR_s
hp_Q14, n_LF_Q12, 2 ); |
| 526 sLTP_Q15[ NSQ->sLTP_buf_idx ] = silk_LSHIFT( LPC_exc_Q14, 1 ); |
| 527 NSQ->sLTP_shp_buf_idx++; |
| 528 NSQ->sLTP_buf_idx++; |
| 529 |
| 530 /* Make dither dependent on quantized signal */ |
| 531 NSQ->rand_seed = silk_ADD32_ovflw( NSQ->rand_seed, pulses[ i ] ); |
| 532 } |
| 533 |
| 534 NSQ->sLF_AR_shp_Q14 = sLF_AR_shp_Q14; |
| 535 |
| 536 /* Scale XQ back to normal level before saving */ |
| 537 psLPC_Q14 = &NSQ->sLPC_Q14[ NSQ_LPC_BUF_LENGTH ]; |
| 538 |
| 539 /* write back sAR2_Q14 */ |
| 540 xmm_tempa = _mm_unpackhi_epi16( sAR2_Q14_lo_76543210, sAR2_Q14_hi_76543210 )
; |
| 541 xmm_tempb = _mm_unpacklo_epi16( sAR2_Q14_lo_76543210, sAR2_Q14_hi_76543210 )
; |
| 542 _mm_storeu_si128( (__m128i *)(&NSQ->sAR2_Q14[ 4 ]), xmm_tempa ); |
| 543 _mm_storeu_si128( (__m128i *)(&NSQ->sAR2_Q14[ 0 ]), xmm_tempb ); |
| 544 |
| 545 /* xq[ i ] = (opus_int16)silk_SAT16( silk_RSHIFT_ROUND( silk_SMULWW( psLPC_Q
14[ i ], Gain_Q10 ), 8 ) ); */ |
| 546 { |
| 547 __m128i xmm_Gain_Q10; |
| 548 __m128i xmm_xq_Q14_3210, xmm_xq_Q14_x3x1, xmm_xq_Q14_7654, xmm_xq_Q14_x7
x5; |
| 549 |
| 550 /* prepare (1 << 7) in packed 4 32-bits */ |
| 551 xmm_tempa = _mm_set1_epi32( (1 << 7) ); |
| 552 |
| 553 /* prepare Gain_Q10 in packed 4 32-bits */ |
| 554 xmm_Gain_Q10 = _mm_set1_epi32( Gain_Q10 ); |
| 555 |
| 556 /* process xq */ |
| 557 for (i = 0; i < length - 7; i += 8) |
| 558 { |
| 559 xmm_xq_Q14_3210 = _mm_loadu_si128( (__m128i *)(&(psLPC_Q14[ i + 0 ]
) ) ); |
| 560 xmm_xq_Q14_7654 = _mm_loadu_si128( (__m128i *)(&(psLPC_Q14[ i + 4 ]
) ) ); |
| 561 |
| 562 /* equal shift right 4 bytes*/ |
| 563 xmm_xq_Q14_x3x1 = _mm_shuffle_epi32( xmm_xq_Q14_3210, _MM_SHUFFLE( 0
, 3, 2, 1 ) ); |
| 564 /* equal shift right 4 bytes*/ |
| 565 xmm_xq_Q14_x7x5 = _mm_shuffle_epi32( xmm_xq_Q14_7654, _MM_SHUFFLE( 0
, 3, 2, 1 ) ); |
| 566 |
| 567 xmm_xq_Q14_3210 = _mm_mul_epi32( xmm_xq_Q14_3210, xmm_Gain_Q10 ); |
| 568 xmm_xq_Q14_x3x1 = _mm_mul_epi32( xmm_xq_Q14_x3x1, xmm_Gain_Q10 ); |
| 569 xmm_xq_Q14_7654 = _mm_mul_epi32( xmm_xq_Q14_7654, xmm_Gain_Q10 ); |
| 570 xmm_xq_Q14_x7x5 = _mm_mul_epi32( xmm_xq_Q14_x7x5, xmm_Gain_Q10 ); |
| 571 |
| 572 xmm_xq_Q14_3210 = _mm_srli_epi64( xmm_xq_Q14_3210, 16 ); |
| 573 xmm_xq_Q14_x3x1 = _mm_slli_epi64( xmm_xq_Q14_x3x1, 16 ); |
| 574 xmm_xq_Q14_7654 = _mm_srli_epi64( xmm_xq_Q14_7654, 16 ); |
| 575 xmm_xq_Q14_x7x5 = _mm_slli_epi64( xmm_xq_Q14_x7x5, 16 ); |
| 576 |
| 577 xmm_xq_Q14_3210 = _mm_blend_epi16( xmm_xq_Q14_3210, xmm_xq_Q14_x3x1,
0xCC ); |
| 578 xmm_xq_Q14_7654 = _mm_blend_epi16( xmm_xq_Q14_7654, xmm_xq_Q14_x7x5,
0xCC ); |
| 579 |
| 580 /* silk_RSHIFT_ROUND(xq, 8) */ |
| 581 xmm_xq_Q14_3210 = _mm_add_epi32( xmm_xq_Q14_3210, xmm_tempa ); |
| 582 xmm_xq_Q14_7654 = _mm_add_epi32( xmm_xq_Q14_7654, xmm_tempa ); |
| 583 |
| 584 xmm_xq_Q14_3210 = _mm_srai_epi32( xmm_xq_Q14_3210, 8 ); |
| 585 xmm_xq_Q14_7654 = _mm_srai_epi32( xmm_xq_Q14_7654, 8 ); |
| 586 |
| 587 /* silk_SAT16 */ |
| 588 xmm_xq_Q14_3210 = _mm_packs_epi32( xmm_xq_Q14_3210, xmm_xq_Q14_7654
); |
| 589 |
| 590 /* save to xq */ |
| 591 _mm_storeu_si128( (__m128i *)(&xq[ i ] ), xmm_xq_Q14_3210 ); |
| 592 } |
| 593 } |
| 594 for ( ; i < length; i++) |
| 595 { |
| 596 xq[i] = (opus_int16)silk_SAT16( silk_RSHIFT_ROUND( silk_SMULWW( psLPC_Q1
4[ i ], Gain_Q10 ), 8 ) ); |
| 597 } |
| 598 |
| 599 /* Update LPC synth buffer */ |
| 600 silk_memcpy( NSQ->sLPC_Q14, &NSQ->sLPC_Q14[ length ], NSQ_LPC_BUF_LENGTH * s
izeof( opus_int32 ) ); |
| 601 } |
| 602 |
| 603 static OPUS_INLINE void silk_nsq_scale_states_sse4_1( |
| 604 const silk_encoder_state *psEncC, /* I Encoder State
*/ |
| 605 silk_nsq_state *NSQ, /* I/O NSQ state
*/ |
| 606 const opus_int32 x_Q3[], /* I input in Q3
*/ |
| 607 opus_int32 x_sc_Q10[], /* O input scaled with 1/Gain
*/ |
| 608 const opus_int16 sLTP[], /* I re-whitened LTP state in
Q0 */ |
| 609 opus_int32 sLTP_Q15[], /* O LTP state matching scale
d input */ |
| 610 opus_int subfr, /* I subframe number
*/ |
| 611 const opus_int LTP_scale_Q14, /* I
*/ |
| 612 const opus_int32 Gains_Q16[ MAX_NB_SUBFR ], /* I
*/ |
| 613 const opus_int pitchL[ MAX_NB_SUBFR ], /* I Pitch lag
*/ |
| 614 const opus_int signal_type /* I Signal type
*/ |
| 615 ) |
| 616 { |
| 617 opus_int i, lag; |
| 618 opus_int32 gain_adj_Q16, inv_gain_Q31, inv_gain_Q23; |
| 619 __m128i xmm_inv_gain_Q23, xmm_x_Q3_x2x0, xmm_x_Q3_x3x1; |
| 620 |
| 621 lag = pitchL[ subfr ]; |
| 622 inv_gain_Q31 = silk_INVERSE32_varQ( silk_max( Gains_Q16[ subfr ], 1 ), 47 ); |
| 623 silk_assert( inv_gain_Q31 != 0 ); |
| 624 |
| 625 /* Calculate gain adjustment factor */ |
| 626 if( Gains_Q16[ subfr ] != NSQ->prev_gain_Q16 ) { |
| 627 gain_adj_Q16 = silk_DIV32_varQ( NSQ->prev_gain_Q16, Gains_Q16[ subfr ],
16 ); |
| 628 } else { |
| 629 gain_adj_Q16 = (opus_int32)1 << 16; |
| 630 } |
| 631 |
| 632 /* Scale input */ |
| 633 inv_gain_Q23 = silk_RSHIFT_ROUND( inv_gain_Q31, 8 ); |
| 634 |
| 635 /* prepare inv_gain_Q23 in packed 4 32-bits */ |
| 636 xmm_inv_gain_Q23 = _mm_set1_epi32(inv_gain_Q23); |
| 637 |
| 638 for( i = 0; i < psEncC->subfr_length - 3; i += 4 ) { |
| 639 xmm_x_Q3_x2x0 = _mm_loadu_si128( (__m128i *)(&(x_Q3[ i ] ) ) ); |
| 640 |
| 641 /* equal shift right 4 bytes*/ |
| 642 xmm_x_Q3_x3x1 = _mm_shuffle_epi32( xmm_x_Q3_x2x0, _MM_SHUFFLE( 0, 3, 2,
1 ) ); |
| 643 |
| 644 xmm_x_Q3_x2x0 = _mm_mul_epi32( xmm_x_Q3_x2x0, xmm_inv_gain_Q23 ); |
| 645 xmm_x_Q3_x3x1 = _mm_mul_epi32( xmm_x_Q3_x3x1, xmm_inv_gain_Q23 ); |
| 646 |
| 647 xmm_x_Q3_x2x0 = _mm_srli_epi64( xmm_x_Q3_x2x0, 16 ); |
| 648 xmm_x_Q3_x3x1 = _mm_slli_epi64( xmm_x_Q3_x3x1, 16 ); |
| 649 |
| 650 xmm_x_Q3_x2x0 = _mm_blend_epi16( xmm_x_Q3_x2x0, xmm_x_Q3_x3x1, 0xCC ); |
| 651 |
| 652 _mm_storeu_si128( (__m128i *)(&(x_sc_Q10[ i ] ) ), xmm_x_Q3_x2x0 ); |
| 653 } |
| 654 |
| 655 for( ; i < psEncC->subfr_length; i++ ) { |
| 656 x_sc_Q10[ i ] = silk_SMULWW( x_Q3[ i ], inv_gain_Q23 ); |
| 657 } |
| 658 |
| 659 /* Save inverse gain */ |
| 660 NSQ->prev_gain_Q16 = Gains_Q16[ subfr ]; |
| 661 |
| 662 /* After rewhitening the LTP state is un-scaled, so scale with inv_gain_Q16
*/ |
| 663 if( NSQ->rewhite_flag ) { |
| 664 if( subfr == 0 ) { |
| 665 /* Do LTP downscaling */ |
| 666 inv_gain_Q31 = silk_LSHIFT( silk_SMULWB( inv_gain_Q31, LTP_scale_Q14
), 2 ); |
| 667 } |
| 668 for( i = NSQ->sLTP_buf_idx - lag - LTP_ORDER / 2; i < NSQ->sLTP_buf_idx;
i++ ) { |
| 669 silk_assert( i < MAX_FRAME_LENGTH ); |
| 670 sLTP_Q15[ i ] = silk_SMULWB( inv_gain_Q31, sLTP[ i ] ); |
| 671 } |
| 672 } |
| 673 |
| 674 /* Adjust for changing gain */ |
| 675 if( gain_adj_Q16 != (opus_int32)1 << 16 ) { |
| 676 /* Scale long-term shaping state */ |
| 677 __m128i xmm_gain_adj_Q16, xmm_sLTP_shp_Q14_x2x0, xmm_sLTP_shp_Q14_x3x1; |
| 678 |
| 679 /* prepare gain_adj_Q16 in packed 4 32-bits */ |
| 680 xmm_gain_adj_Q16 = _mm_set1_epi32(gain_adj_Q16); |
| 681 |
| 682 for( i = NSQ->sLTP_shp_buf_idx - psEncC->ltp_mem_length; i < NSQ->sLTP_s
hp_buf_idx - 3; i += 4 ) |
| 683 { |
| 684 xmm_sLTP_shp_Q14_x2x0 = _mm_loadu_si128( (__m128i *)(&(NSQ->sLTP_shp
_Q14[ i ] ) ) ); |
| 685 /* equal shift right 4 bytes*/ |
| 686 xmm_sLTP_shp_Q14_x3x1 = _mm_shuffle_epi32( xmm_sLTP_shp_Q14_x2x0, _M
M_SHUFFLE( 0, 3, 2, 1 ) ); |
| 687 |
| 688 xmm_sLTP_shp_Q14_x2x0 = _mm_mul_epi32( xmm_sLTP_shp_Q14_x2x0, xmm_ga
in_adj_Q16 ); |
| 689 xmm_sLTP_shp_Q14_x3x1 = _mm_mul_epi32( xmm_sLTP_shp_Q14_x3x1, xmm_ga
in_adj_Q16 ); |
| 690 |
| 691 xmm_sLTP_shp_Q14_x2x0 = _mm_srli_epi64( xmm_sLTP_shp_Q14_x2x0, 16 ); |
| 692 xmm_sLTP_shp_Q14_x3x1 = _mm_slli_epi64( xmm_sLTP_shp_Q14_x3x1, 16 ); |
| 693 |
| 694 xmm_sLTP_shp_Q14_x2x0 = _mm_blend_epi16( xmm_sLTP_shp_Q14_x2x0, xmm_
sLTP_shp_Q14_x3x1, 0xCC ); |
| 695 |
| 696 _mm_storeu_si128( (__m128i *)(&(NSQ->sLTP_shp_Q14[ i ] ) ), xmm_sLTP
_shp_Q14_x2x0 ); |
| 697 } |
| 698 |
| 699 for( ; i < NSQ->sLTP_shp_buf_idx; i++ ) { |
| 700 NSQ->sLTP_shp_Q14[ i ] = silk_SMULWW( gain_adj_Q16, NSQ->sLTP_shp_Q1
4[ i ] ); |
| 701 } |
| 702 |
| 703 /* Scale long-term prediction state */ |
| 704 if( signal_type == TYPE_VOICED && NSQ->rewhite_flag == 0 ) { |
| 705 for( i = NSQ->sLTP_buf_idx - lag - LTP_ORDER / 2; i < NSQ->sLTP_buf_
idx; i++ ) { |
| 706 sLTP_Q15[ i ] = silk_SMULWW( gain_adj_Q16, sLTP_Q15[ i ] ); |
| 707 } |
| 708 } |
| 709 |
| 710 NSQ->sLF_AR_shp_Q14 = silk_SMULWW( gain_adj_Q16, NSQ->sLF_AR_shp_Q14 ); |
| 711 |
| 712 /* Scale short-term prediction and shaping states */ |
| 713 for( i = 0; i < NSQ_LPC_BUF_LENGTH; i++ ) { |
| 714 NSQ->sLPC_Q14[ i ] = silk_SMULWW( gain_adj_Q16, NSQ->sLPC_Q14[ i ] )
; |
| 715 } |
| 716 for( i = 0; i < MAX_SHAPE_LPC_ORDER; i++ ) { |
| 717 NSQ->sAR2_Q14[ i ] = silk_SMULWW( gain_adj_Q16, NSQ->sAR2_Q14[ i ] )
; |
| 718 } |
| 719 } |
| 720 } |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 882843002:
Update to opus-HEAD-66611f1. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/opus.git@master