Updating Opus to a pre-release of 1.1

silk/resampler_down2_3.c

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 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include "SigProc_FIX.h"
 #include "resampler_private.h"
+#include "stack_alloc.h"
 
 #define ORDER_FIR                   4
 
 /* Downsample by a factor 2/3, low quality */
 void silk_resampler_down2_3(
     opus_int32                  *S,                 /* I/O  State vector [ 6 ]                                          */
     opus_int16                  *out,               /* O    Output signal [ floor(2*inLen/3) ]                          */
     const opus_int16            *in,                /* I    Input signal [ inLen ]                                      */
     opus_int32                  inLen               /* I    Number of input samples                                     */
 )
 {
     opus_int32 nSamplesIn, counter, res_Q6;
-    opus_int32 buf[ RESAMPLER_MAX_BATCH_SIZE_IN + ORDER_FIR ];
+    VARDECL( opus_int32, buf );
     opus_int32 *buf_ptr;
+    SAVE_STACK;
+
+    ALLOC( buf, RESAMPLER_MAX_BATCH_SIZE_IN + ORDER_FIR, opus_int32 );
 
     /* Copy buffered samples to start of buffer */
     silk_memcpy( buf, S, ORDER_FIR * sizeof( opus_int32 ) );
 
     /* Iterate over blocks of frameSizeIn input samples */
     while( 1 ) {
         nSamplesIn = silk_min( inLen, RESAMPLER_MAX_BATCH_SIZE_IN );
 
         /* Second-order AR filter (output in Q8) */
         silk_resampler_private_AR2( &S[ ORDER_FIR ], &buf[ ORDER_FIR ], in,
@@ skipping 30 matching lines @@
         if( inLen > 0 ) {
             /* More iterations to do; copy last part of filtered signal to beginning of buffer */
             silk_memcpy( buf, &buf[ nSamplesIn ], ORDER_FIR * sizeof( opus_int32 ) );
         } else {
             break;
         }
     }
 
     /* Copy last part of filtered signal to the state for the next call */
     silk_memcpy( S, &buf[ nSamplesIn ], ORDER_FIR * sizeof( opus_int32 ) );
+    RESTORE_STACK;
 }