Last fixes to build with gcc 4.6.

Set but unused parameter/variable warnings.
http://code.google.com/p/webrtc/issues/detail?id=52
Review URL: http://webrtc-codereview.appspot.com/139006

git-svn-id: http://webrtc.googlecode.com/svn/trunk@498 4adac7df-926f-26a2-2b94-8c16560cd09d

src/modules/audio_coding/codecs/iLBC/main/source/ilbc.c

@@ -240,8 +240,8 @@ WebRtc_Word16 WebRtcIlbcfix_DecodePlc(iLBC_decinst_t *iLBCdec_inst, WebRtc_Word1
 WebRtc_Word16 WebRtcIlbcfix_NetEqPlc(iLBC_decinst_t *iLBCdec_inst, WebRtc_Word16 *decoded, WebRtc_Word16 noOfLostFrames) {
 
   /* Two input parameters not used, but needed for function pointers in NetEQ */
-  decoded = NULL;
-  noOfLostFrames = 0;
+  (void)(decoded = NULL);
+  (void)(noOfLostFrames = 0);
 
   WebRtcSpl_MemSetW16(((iLBC_Dec_Inst_t*)iLBCdec_inst)->enh_buf, 0, ENH_BUFL);
   ((iLBC_Dec_Inst_t*)iLBCdec_inst)->prev_enh_pl = 2;

src/modules/audio_coding/codecs/iSAC/main/source/bandwidth_estimator.c

@@ -153,8 +153,6 @@ WebRtc_Word16 WebRtcIsac_UpdateBandwidthEstimator(
   float arr_time_noise;
   float arr_time_noise_abs;
 
-  WebRtc_Word32 asdf;
-
   float delay_correction_factor = 1;
   float late_diff = 0.0f;
   int immediate_set = 0;
@@ -471,8 +469,6 @@ WebRtc_Word16 WebRtcIsac_UpdateBandwidthEstimator(
   bwest_str->prev_rec_arr_ts = arr_ts ;
   bwest_str->prev_rec_send_ts = send_ts;
 
-  asdf = bwest_str->rec_bw;
-
   /* Replace bwest_str->rec_bw by the new value (atomic operation) */
   bwest_str->rec_bw = (WebRtc_Word32)(1.0f / bwest_str->rec_bw_inv -
                                       bwest_str->rec_header_rate);

src/modules/audio_coding/codecs/iSAC/main/source/encode.c

@@ -865,8 +865,6 @@ WebRtcIsac_EncodeUb12(
   WebRtc_Word16 fre[FRAMESAMPLES_HALF];   /* Q7 */
   WebRtc_Word16 fim[FRAMESAMPLES_HALF];   /* Q7 */
 
-  WebRtc_Word16    AvgPitchGain_Q12;
-
   int status = 0;
 
   double varscale[1];
@@ -927,8 +925,6 @@ WebRtcIsac_EncodeUb12(
   WebRtcIsac_SplitAndFilterFloat(ISACencUB_obj->data_buffer_float, HP, LP,
                                  HP_lookahead, LP_lookahead, &ISACencUB_obj->prefiltbankstr_obj);
 
-  AvgPitchGain_Q12 = 0;
-
   /* find coefficients for perceptual pre-filters */
   WebRtcIsac_GetLpcCoefUb(LP_lookahead, &ISACencUB_obj->maskfiltstr_obj,
                             lpcVecs, corr, varscale, isac12kHz);

src/modules/audio_coding/codecs/iSAC/main/source/entropy_coding.c

@@ -1849,7 +1849,6 @@ void WebRtcIsac_EncodeLpcGainLb(double *LPCCoef_lo, double *LPCCoef_hi, int mode
   int j, k, n, pos, pos2, posg, offsg, offs2;
   int index_g[KLT_ORDER_GAIN];
   int index_ovr_g[KLT_ORDER_GAIN];
-  double Bits;
   double tmpcoeffs_g[KLT_ORDER_GAIN];
   double tmpcoeffs2_g[KLT_ORDER_GAIN];
   double sum;
@@ -1907,7 +1906,6 @@ void WebRtcIsac_EncodeLpcGainLb(double *LPCCoef_lo, double *LPCCoef_hi, int mode
 
 
   /* quantize coefficients */
-  Bits = 0.0;
   for (k=0; k<KLT_ORDER_GAIN; k++) {
 
     /* get index */
@@ -2523,7 +2521,6 @@ void WebRtcIsac_TranscodeLPCCoef(double *LPCCoef_lo, double *LPCCoef_hi, int mod
 
   int j, k, n, pos, pos2, posg, offsg, offs2;
   int index_ovr_g[KLT_ORDER_GAIN];
-  double Bits;
   double tmpcoeffs_g[KLT_ORDER_GAIN];
   double tmpcoeffs2_g[KLT_ORDER_GAIN];
   double sum;
@@ -2581,7 +2578,6 @@ void WebRtcIsac_TranscodeLPCCoef(double *LPCCoef_lo, double *LPCCoef_hi, int mod
 
 
   /* quantize coefficients */
-  Bits = 0.0;
   for (k=0; k<KLT_ORDER_GAIN; k++) {
 
     /* get index */

src/modules/audio_coding/codecs/iSAC/main/source/lpc_analysis.c

@@ -136,7 +136,7 @@ WebRtcIsac_GetVarsUB(
     double*       oldEnergy,
     double*       varscale)
 {
-  double nrg[4], chng, pg;
+  double nrg[4], chng;
   int k;
 
   /* Calculate energies of first and second frame halfs */
@@ -164,9 +164,6 @@ WebRtcIsac_GetVarsUB(
                  fabs(10.0 * log10(nrg[0] / *oldEnergy)));
 
 
-  /* Find average pitch gain */
-  pg = 0.0;
-
   /* If pitch gain is low and energy constant - increase noise level*/
   /* Matlab code:
      pg = 0:.01:.45; plot(pg, 0.0 + 1.0 * exp( -1.0 * exp(-200.0 * pg.*pg.*pg) / (1.0 + 0.4 * 0) ))
@@ -464,7 +461,6 @@ WebRtcIsac_GetLpcGain(
     const double* varscale)
 {
   WebRtc_Word16 j, n;
-  WebRtc_Word16 varscaleIdx;
   WebRtc_Word16 subFrameCntr;
   double aPolynom[ORDERLO + 1];
   double res_nrg;
@@ -475,7 +471,6 @@ WebRtcIsac_GetLpcGain(
   const double S_N_R = pow(10.0, 0.05 * signal_noise_ratio) / 3.46;
 
   aPolynom[0] = 1;
-  varscaleIdx = 0;
   for(subFrameCntr = 0; subFrameCntr < numVecs; subFrameCntr++)
   {
     if(subFrameCntr == SUBFRAMES)