Update Opus to 1.0.2.

silk/PLC.c

 /***********************************************************************
 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 - Redistributions of source code must retain the above copyright notice,
 this list of conditions and the following disclaimer.
 - Redistributions in binary form must reproduce the above copyright
 notice, this list of conditions and the following disclaimer in the
 documentation and/or other materials provided with the distribution.
@@ skipping 12 matching lines @@
 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include "main.h"
+#include "stack_alloc.h"
 #include "PLC.h"
 
 #define NB_ATT 2
 static const opus_int16 HARM_ATT_Q15[NB_ATT]              = { 32440, 31130 }; /* 0.99, 0.95 */
 static const opus_int16 PLC_RAND_ATTENUATE_V_Q15[NB_ATT]  = { 31130, 26214 }; /* 0.95, 0.8 */
 static const opus_int16 PLC_RAND_ATTENUATE_UV_Q15[NB_ATT] = { 32440, 29491 }; /* 0.99, 0.9 */
 
 static inline void silk_PLC_update(
     silk_decoder_state                  *psDec,             /* I/O Decoder state        */
     silk_decoder_control                *psDecCtrl          /* I/O Decoder control      */
@@ skipping 128 matching lines @@
 )
 {
     opus_int   i, j, k;
     opus_int   lag, idx, sLTP_buf_idx, shift1, shift2;
     opus_int32 rand_seed, harm_Gain_Q15, rand_Gain_Q15, inv_gain_Q30;
     opus_int32 energy1, energy2, *rand_ptr, *pred_lag_ptr;
     opus_int32 LPC_pred_Q10, LTP_pred_Q12;
     opus_int16 rand_scale_Q14;
     opus_int16 *B_Q14, *exc_buf_ptr;
     opus_int32 *sLPC_Q14_ptr;
-    opus_int16 exc_buf[ 2 * MAX_SUB_FRAME_LENGTH ];
+    VARDECL( opus_int16, exc_buf );
     opus_int16 A_Q12[ MAX_LPC_ORDER ];
-    opus_int16 sLTP[ MAX_FRAME_LENGTH ];
-    opus_int32 sLTP_Q14[ 2 * MAX_FRAME_LENGTH ];
+    VARDECL( opus_int16, sLTP );
+    VARDECL( opus_int32, sLTP_Q14 );
     silk_PLC_struct *psPLC = &psDec->sPLC;
     opus_int32 prevGain_Q10[2];
+    SAVE_STACK;
+
+    ALLOC( exc_buf, 2*psPLC->subfr_length, opus_int16 );
+    ALLOC( sLTP, psDec->ltp_mem_length, opus_int16 );
+    ALLOC( sLTP_Q14, psDec->ltp_mem_length + psDec->frame_length, opus_int32 );
 
     prevGain_Q10[0] = silk_RSHIFT( psPLC->prevGain_Q16[ 0 ], 6);
     prevGain_Q10[1] = silk_RSHIFT( psPLC->prevGain_Q16[ 1 ], 6);
 
     if( psDec->first_frame_after_reset ) {
        silk_memset( psPLC->prevLPC_Q12, 0, sizeof( psPLC->prevLPC_Q12 ) );
     }
 
     /* Find random noise component */
     /* Scale previous excitation signal */
@@ skipping 150 matching lines @@
     silk_memcpy( psDec->sLPC_Q14_buf, &sLPC_Q14_ptr[ psDec->frame_length ], MAX_LPC_ORDER * sizeof( opus_int32 ) );
 
     /**************************************/
     /* Update states                      */
     /**************************************/
     psPLC->rand_seed     = rand_seed;
     psPLC->randScale_Q14 = rand_scale_Q14;
     for( i = 0; i < MAX_NB_SUBFR; i++ ) {
         psDecCtrl->pitchL[ i ] = lag;
     }
+    RESTORE_STACK;
 }
 
-/* Glues concealed frames with new good recieved frames */
+/* Glues concealed frames with new good received frames */
 void silk_PLC_glue_frames(
     silk_decoder_state                  *psDec,             /* I/O decoder state        */
     opus_int16                          frame[],            /* I/O signal               */
     opus_int                            length              /* I length of signal       */
 )
 {
     opus_int   i, energy_shift;
     opus_int32 energy;
     silk_PLC_struct *psPLC;
     psPLC = &psDec->sPLC;
@@ skipping 37 matching lines @@
                     gain_Q16 += slope_Q16;
                     if( gain_Q16 > (opus_int32)1 << 16 ) {
                         break;
                     }
                 }
             }
         }
         psPLC->last_frame_lost = 0;
     }
 }