Prepare to convert various types to size_t.

webrtc/modules/audio_coding/codecs/ilbc/test/iLBC_test.c

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 147 matching lines @@
 
   while (((int16_t)fread(data,sizeof(int16_t),frameLen,ifileid))==
          frameLen) {
 
     blockcount++;
 
     /* encoding */
 
     fprintf(stderr, "--- Encoding block %i --- ",blockcount);
     len = WebRtcIlbcfix_Encode(Enc_Inst, data, (int16_t)frameLen, encoded_data);
+    if (len < 0) {
+      fprintf(stderr, "Error encoding\n");
+      exit(0);
+    }
     fprintf(stderr, "\r");
 
     /* write byte file */
 
     if (fwrite(encoded_data, sizeof(int16_t),
                ((len+1)/sizeof(int16_t)), efileid) !=
         (size_t)(((len+1)/sizeof(int16_t)))) {
       return -1;
     }
 
@@ skipping 17 matching lines @@
     } else {
       pli=1;
     }
 
     /* decoding */
 
     fprintf(stderr, "--- Decoding block %i --- ",blockcount);
     if (pli==1) {
       len=WebRtcIlbcfix_Decode(Dec_Inst, encoded_data,
                                (int16_t)len, decoded_data,&speechType);
+      if (len < 0) {
+        fprintf(stderr, "Error decoding\n");
+        exit(0);
+      }
     } else {
       len=WebRtcIlbcfix_DecodePlc(Dec_Inst, decoded_data, 1);
     }
     fprintf(stderr, "\r");
 
     /* write output file */
 
     if (fwrite(decoded_data, sizeof(int16_t), len,
                ofileid) != (size_t)len) {
       return -1;
     }
   }
 
   /* close files */
 
   fclose(ifileid);  fclose(efileid); fclose(ofileid);
   if (argc==6) {
     fclose(cfileid);
   }
 
   /* Free structs */
   WebRtcIlbcfix_EncoderFree(Enc_Inst);
   WebRtcIlbcfix_DecoderFree(Dec_Inst);
 
 
   printf("\nDone with simulation\n\n");
 
   return(0);
 }