Update a ton of audio code to use size_t more correctly and in general reduce

webrtc/modules/audio_coding/codecs/isac/fix/source/decode_plc.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 159 matching lines @@
       *B = WEBRTC_SPL_WORD16_MAX;
     }
   }
 }
 
 
 
 
 static void LinearResampler(int16_t* in,
                             int16_t* out,
-                            int16_t lenIn,
-                            int16_t lenOut)
+                            size_t lenIn,
+                            size_t lenOut)
 {
-  int32_t n = (lenIn - 1) * RESAMP_RES;
-  int16_t resOut, i, j, relativePos, diff; /* */
+  size_t n = (lenIn - 1) * RESAMP_RES;
+  int16_t resOut, relativePos, diff; /* */
+  size_t i, j;
   uint16_t udiff;
 
   if( lenIn == lenOut )
   {
     WEBRTC_SPL_MEMCPY_W16( out, in, lenIn );
     return;
   }
 
-  resOut = WebRtcSpl_DivW32W16ResW16( n, (int16_t)(lenOut-1) );
+  resOut = WebRtcSpl_DivW32W16ResW16( (int32_t)n, (int16_t)(lenOut-1) );
 
   out[0] = in[0];
   for( i = 1, j = 0, relativePos = 0; i < lenOut; i++ )
   {
 
     relativePos += resOut;
     while( relativePos > RESAMP_RES )
     {
       j++;
       relativePos -= RESAMP_RES;
@@ skipping 24 matching lines @@
     }
   }
 }
 
 
 
 
 
 void WebRtcIsacfix_DecodePlcImpl(int16_t *signal_out16,
                                  IsacFixDecoderInstance *ISACdec_obj,
-                                 int16_t *current_framesamples )
+                                 size_t *current_framesamples )
 {
   int subframecnt;
 
   int16_t* Vector_Word16_1;
   int16_t  Vector_Word16_Extended_1[FRAMESAMPLES_HALF + NOISE_FILTER_LEN];
   int16_t* Vector_Word16_2;
   int16_t  Vector_Word16_Extended_2[FRAMESAMPLES_HALF + NOISE_FILTER_LEN];
 
   int32_t Vector_Word32_1[FRAMESAMPLES_HALF];
   int32_t Vector_Word32_2[FRAMESAMPLES_HALF];
 
   int16_t lofilt_coefQ15[ORDERLO*SUBFRAMES]; //refl. coeffs
   int16_t hifilt_coefQ15[ORDERHI*SUBFRAMES]; //refl. coeffs
 
   int16_t pitchLags_Q7[PITCH_SUBFRAMES];
   int16_t pitchGains_Q12[PITCH_SUBFRAMES];
 
   int16_t tmp_1, tmp_2;
   int32_t tmp32a, tmp32b;
   int16_t gainQ13;
 
   int16_t myDecayRate;
 
   /* ---------- PLC variables ------------ */
-  int16_t lag0, i, k, noiseIndex;
+  size_t lag0, i, k;
+  int16_t noiseIndex;
   int16_t stretchPitchLP[PITCH_MAX_LAG + 10], stretchPitchLP1[PITCH_MAX_LAG + 10];
 
   int32_t gain_lo_hiQ17[2*SUBFRAMES];
 
-  int16_t nLP, pLP, wNoisyLP, wPriodicLP, tmp16, minIdx;
+  int16_t nLP, pLP, wNoisyLP, wPriodicLP, tmp16;
+  size_t minIdx;
   int32_t nHP, pHP, wNoisyHP, wPriodicHP, corr, minCorr, maxCoeff;
   int16_t noise1, rshift;
 
 
   int16_t ltpGain, pitchGain, myVoiceIndicator, myAbs, maxAbs;
   int32_t varIn, varOut, logVarIn, logVarOut, Q, logMaxAbs;
   int rightShiftIn, rightShiftOut;
 
 
   /* ------------------------------------- */
@@ skipping 14 matching lines @@
 
     /* Upper Band */
     WEBRTC_SPL_MEMCPY_W16(&hifilt_coefQ15[ subframecnt * ORDERHI ],
                           (ISACdec_obj->plcstr_obj).hifilt_coefQ15, ORDERHI);
     gain_lo_hiQ17[2*subframecnt + 1] = (ISACdec_obj->plcstr_obj).gain_lo_hiQ17[1];
   }
 
 
 
 
-  lag0 = ((ISACdec_obj->plcstr_obj.lastPitchLag_Q7 + 64) >> 7) + 1;
+  lag0 = (size_t)(((ISACdec_obj->plcstr_obj.lastPitchLag_Q7 + 64) >> 7) + 1);
 
 
   if( (ISACdec_obj->plcstr_obj).used != PLC_WAS_USED )
   {
     (ISACdec_obj->plcstr_obj).pitchCycles = 0;
 
     (ISACdec_obj->plcstr_obj).lastPitchLP =
         &((ISACdec_obj->plcstr_obj).prevPitchInvIn[FRAMESAMPLES_HALF - lag0]);
     minCorr = WEBRTC_SPL_WORD32_MAX;
 
@@ skipping 479 matching lines @@
     Vector_Word16_2[k] = tmp_2;
   }
 
 
   WebRtcIsacfix_FilterAndCombine1(Vector_Word16_1,
                                   Vector_Word16_2, signal_out16, &ISACdec_obj->postfiltbankstr_obj);
 
   (ISACdec_obj->plcstr_obj).used = PLC_WAS_USED;
   *current_framesamples = 480;
 }