Match existing type usage better.

webrtc/modules/audio_coding/codecs/isac/fix/source/encode.c

 /*
  *  Copyright (c) 2011 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 480 matching lines @@
 /* This function is used to create a new bitstream with new BWE.
    The same data as previously encoded with the fucntion WebRtcIsacfix_EncodeImpl()
    is used. The data needed is taken from the struct, where it was stored
    when calling the encoder. */
 int WebRtcIsacfix_EncodeStoredData(IsacFixEncoderInstance  *ISACenc_obj,
                                    int     BWnumber,
                                    float              scale)
 {
   int ii;
   int status;
-  int16_t BWno = BWnumber;
+  int16_t BWno = (int16_t)BWnumber;
   int stream_length = 0;
 
   int16_t model;
   const uint16_t *Q_PitchGain_cdf_ptr[1];
   const uint16_t **cdf;
   const IsacSaveEncoderData *SaveEnc_str;
   int32_t tmpLPCcoeffs_g[KLT_ORDER_GAIN<<1];
   int16_t tmpLPCindex_g[KLT_ORDER_GAIN<<1];
   int16_t tmp_fre[FRAMESAMPLES];
   int16_t tmp_fim[FRAMESAMPLES];
@@ skipping 114 matching lines @@
     if (status < 0) {
       return status;
     }
   }
 
   /* complete arithmetic coding */
   stream_length = WebRtcIsacfix_EncTerminate(&ISACenc_obj->bitstr_obj);
 
   return stream_length;
 }