[Opus] Update to v1.2.1

third_party/opus/src/src/opus_compare.c

 /* Copyright (c) 2011-2012 Xiph.Org Foundation, Mozilla Corporation
    Written by Jean-Marc Valin and Timothy B. Terriberry */
 /*
    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.
 
@@ skipping 345 matching lines @@
       }
       Eb /= (BANDS[bi+1]-BANDS[bi])*nchannels;
       Ef += Eb*Eb;
     }
     /*Using a fixed normalization value means we're willing to accept slightly
        lower quality for lower sampling rates.*/
     Ef/=NBANDS;
     Ef*=Ef;
     err+=Ef*Ef;
   }
+  free(xb);
+  free(X);
+  free(Y);
   err=pow(err/nframes,1.0/16);
   Q=100*(1-0.5*log(1+err)/log(1.13));
   if(Q<0){
     fprintf(stderr,"Test vector FAILS\n");
     fprintf(stderr,"Internal weighted error is %f\n",err);
     return EXIT_FAILURE;
   }
   else{
     fprintf(stderr,"Test vector PASSES\n");
     fprintf(stderr,
      "Opus quality metric: %.1f %% (internal weighted error is %f)\n",Q,err);
     return EXIT_SUCCESS;
   }
 }