[Opus] Update to v1.2.1

third_party/opus/src/silk/float/wrappers_FLP.c

Index: third_party/opus/src/silk/float/wrappers_FLP.c
diff --git a/third_party/opus/src/silk/float/wrappers_FLP.c b/third_party/opus/src/silk/float/wrappers_FLP.c
index 6666b8efaade2f0ce9eef37181c07683d5433ec2..ad90b874a4d814a615c914174205fdfb10df0974 100644
--- a/third_party/opus/src/silk/float/wrappers_FLP.c
+++ b/third_party/opus/src/silk/float/wrappers_FLP.c
@@ -54,13 +54,14 @@ void silk_A2NLSF_FLP(
 void silk_NLSF2A_FLP(
     silk_float                      *pAR,                               /* O    LPC coefficients [ LPC_order ]              */
     const opus_int16                *NLSF_Q15,                          /* I    NLSF vector      [ LPC_order ]              */
-    const opus_int                  LPC_order                           /* I    LPC order                                   */
+    const opus_int                  LPC_order,                          /* I    LPC order                                   */
+    int                             arch                                /* I    Run-time architecture                       */
 )
 {
     opus_int   i;
     opus_int16 a_fix_Q12[ MAX_LPC_ORDER ];
 
-    silk_NLSF2A( a_fix_Q12, NLSF_Q15, LPC_order );
+    silk_NLSF2A( a_fix_Q12, NLSF_Q15, LPC_order, arch );
 
     for( i = 0; i < LPC_order; i++ ) {
         pAR[ i ] = ( silk_float )a_fix_Q12[ i ] * ( 1.0f / 4096.0f );
@@ -102,14 +103,14 @@ void silk_NSQ_wrapper_FLP(
 )
 {
     opus_int     i, j;
-    opus_int32   x_Q3[ MAX_FRAME_LENGTH ];
+    opus_int16   x16[ MAX_FRAME_LENGTH ];
     opus_int32   Gains_Q16[ MAX_NB_SUBFR ];
     silk_DWORD_ALIGN opus_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ];
     opus_int16   LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ];
     opus_int     LTP_scale_Q14;
 
     /* Noise shaping parameters */
-    opus_int16   AR2_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
+    opus_int16   AR_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
     opus_int32   LF_shp_Q14[ MAX_NB_SUBFR ];         /* Packs two int16 coefficients per int32 value             */
     opus_int     Lambda_Q10;
     opus_int     Tilt_Q14[ MAX_NB_SUBFR ];
@@ -119,7 +120,7 @@ void silk_NSQ_wrapper_FLP(
     /* Noise shape parameters */
     for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) {
         for( j = 0; j < psEnc->sCmn.shapingLPCOrder; j++ ) {
-            AR2_Q13[ i * MAX_SHAPE_LPC_ORDER + j ] = silk_float2int( psEncCtrl->AR2[ i * MAX_SHAPE_LPC_ORDER + j ] * 8192.0f );
+            AR_Q13[ i * MAX_SHAPE_LPC_ORDER + j ] = silk_float2int( psEncCtrl->AR[ i * MAX_SHAPE_LPC_ORDER + j ] * 8192.0f );
         }
     }
 
@@ -155,16 +156,16 @@ void silk_NSQ_wrapper_FLP(
 
     /* Convert input to fix */
     for( i = 0; i < psEnc->sCmn.frame_length; i++ ) {
-        x_Q3[ i ] = silk_float2int( 8.0f * x[ i ] );
+        x16[ i ] = silk_float2int( x[ i ] );
     }
 
     /* Call NSQ */
     if( psEnc->sCmn.nStatesDelayedDecision > 1 || psEnc->sCmn.warping_Q16 > 0 ) {
-        silk_NSQ_del_dec( &psEnc->sCmn, psNSQ, psIndices, x_Q3, pulses, PredCoef_Q12[ 0 ], LTPCoef_Q14,
-            AR2_Q13, HarmShapeGain_Q14, Tilt_Q14, LF_shp_Q14, Gains_Q16, psEncCtrl->pitchL, Lambda_Q10, LTP_scale_Q14, psEnc->sCmn.arch );
+        silk_NSQ_del_dec( &psEnc->sCmn, psNSQ, psIndices, x16, pulses, PredCoef_Q12[ 0 ], LTPCoef_Q14,
+            AR_Q13, HarmShapeGain_Q14, Tilt_Q14, LF_shp_Q14, Gains_Q16, psEncCtrl->pitchL, Lambda_Q10, LTP_scale_Q14, psEnc->sCmn.arch );
     } else {
-        silk_NSQ( &psEnc->sCmn, psNSQ, psIndices, x_Q3, pulses, PredCoef_Q12[ 0 ], LTPCoef_Q14,
-            AR2_Q13, HarmShapeGain_Q14, Tilt_Q14, LF_shp_Q14, Gains_Q16, psEncCtrl->pitchL, Lambda_Q10, LTP_scale_Q14, psEnc->sCmn.arch );
+        silk_NSQ( &psEnc->sCmn, psNSQ, psIndices, x16, pulses, PredCoef_Q12[ 0 ], LTPCoef_Q14,
+            AR_Q13, HarmShapeGain_Q14, Tilt_Q14, LF_shp_Q14, Gains_Q16, psEncCtrl->pitchL, Lambda_Q10, LTP_scale_Q14, psEnc->sCmn.arch );
     }
 }
 
@@ -172,31 +173,35 @@ void silk_NSQ_wrapper_FLP(
 /* Floating-point Silk LTP quantiation wrapper */
 /***********************************************/
 void silk_quant_LTP_gains_FLP(
-    silk_float                      B[ MAX_NB_SUBFR * LTP_ORDER ],      /* I/O  (Un-)quantized LTP gains                    */
+    silk_float                      B[ MAX_NB_SUBFR * LTP_ORDER ],      /* O    Quantized LTP gains                            */
     opus_int8                       cbk_index[ MAX_NB_SUBFR ],          /* O    Codebook index                              */
     opus_int8                       *periodicity_index,                 /* O    Periodicity index                           */
     opus_int32                      *sum_log_gain_Q7,                   /* I/O  Cumulative max prediction gain  */
-    const silk_float                W[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* I    Error weights                        */
-    const opus_int                  mu_Q10,                             /* I    Mu value (R/D tradeoff)                     */
-    const opus_int                  lowComplexity,                      /* I    Flag for low complexity                     */
-    const opus_int                  nb_subfr,                           /* I    number of subframes                         */
+    silk_float                      *pred_gain_dB,                        /* O    LTP prediction gain                            */
+    const silk_float                XX[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* I    Correlation matrix                    */
+    const silk_float                xX[ MAX_NB_SUBFR * LTP_ORDER ],        /* I    Correlation vector                            */
+    const opus_int                    subfr_len,                            /* I    Number of samples per subframe                */
+    const opus_int                    nb_subfr,                           /* I    Number of subframes                            */
     int                             arch                                /* I    Run-time architecture                       */
 )
 {
-    opus_int   i;
+    opus_int   i, pred_gain_dB_Q7;
     opus_int16 B_Q14[ MAX_NB_SUBFR * LTP_ORDER ];
-    opus_int32 W_Q18[ MAX_NB_SUBFR*LTP_ORDER*LTP_ORDER ];
+    opus_int32 XX_Q17[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ];
+    opus_int32 xX_Q17[ MAX_NB_SUBFR * LTP_ORDER ];
 
-    for( i = 0; i < nb_subfr * LTP_ORDER; i++ ) {
-        B_Q14[ i ] = (opus_int16)silk_float2int( B[ i ] * 16384.0f );
-    }
     for( i = 0; i < nb_subfr * LTP_ORDER * LTP_ORDER; i++ ) {
-        W_Q18[ i ] = (opus_int32)silk_float2int( W[ i ] * 262144.0f );
+        XX_Q17[ i ] = (opus_int32)silk_float2int( XX[ i ] * 131072.0f );
+    }
+    for( i = 0; i < nb_subfr * LTP_ORDER; i++ ) {
+        xX_Q17[ i ] = (opus_int32)silk_float2int( xX[ i ] * 131072.0f );
     }
 
-    silk_quant_LTP_gains( B_Q14, cbk_index, periodicity_index, sum_log_gain_Q7, W_Q18, mu_Q10, lowComplexity, nb_subfr, arch );
+    silk_quant_LTP_gains( B_Q14, cbk_index, periodicity_index, sum_log_gain_Q7, &pred_gain_dB_Q7, XX_Q17, xX_Q17, subfr_len, nb_subfr, arch );
 
     for( i = 0; i < nb_subfr * LTP_ORDER; i++ ) {
         B[ i ] = (silk_float)B_Q14[ i ] * ( 1.0f / 16384.0f );
     }
+
+    *pred_gain_dB = (silk_float)pred_gain_dB_Q7 * ( 1.0f / 128.0f );
 }