Update audio code to use size_t more correctly,

webrtc/modules/audio_coding/codecs/ilbc/frame_classify.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.
  */
 
 /******************************************************************
 
  iLBC Speech Coder ANSI-C Source Code
 
  WebRtcIlbcfix_FrameClassify.c
 
 ******************************************************************/
 
 #include "defines.h"
 #include "constants.h"
 
 /*----------------------------------------------------------------*
  *  Classification of subframes to localize start state
  *---------------------------------------------------------------*/
 
-int16_t WebRtcIlbcfix_FrameClassify(
+size_t WebRtcIlbcfix_FrameClassify(
     /* (o) Index to the max-energy sub frame */
     IlbcEncoder *iLBCenc_inst,
     /* (i/o) the encoder state structure */
     int16_t *residualFIX /* (i) lpc residual signal */
                                                 ){
   int16_t max, scale;
   int32_t ssqEn[NSUB_MAX-1];
   int16_t *ssqPtr;
   int32_t *seqEnPtr;
   int32_t maxW32;
   int16_t scale1;
-  int16_t pos;
-  int n;
+  size_t pos;
+  size_t n;
 
   /*
     Calculate the energy of each of the 80 sample blocks
     in the draft the 4 first and last samples are windowed with 1/5...4/5
     and 4/5...1/5 respectively. To simplify for the fixpoint we have changed
     this to 0 0 1 1 and 1 1 0 0
   */
 
   max = WebRtcSpl_MaxAbsValueW16(residualFIX, iLBCenc_inst->blockl);
   scale = WebRtcSpl_GetSizeInBits((uint32_t)(max * max));
@@ skipping 25 matching lines @@
   } else {
     ssqPtr=(int16_t*)WebRtcIlbcfix_kStartSequenceEnrgWin;
   }
   for (n=(iLBCenc_inst->nsub-1); n>0; n--) {
     (*seqEnPtr)=WEBRTC_SPL_MUL(((*seqEnPtr)>>scale1), (*ssqPtr));
     seqEnPtr++;
     ssqPtr++;
   }
 
   /* Extract the best choise of start state */
-  pos = WebRtcSpl_MaxIndexW32(ssqEn, iLBCenc_inst->nsub - 1) + 1;
+  pos = (size_t)WebRtcSpl_MaxIndexW32(ssqEn, iLBCenc_inst->nsub - 1) + 1;
 
   return(pos);
 }