Update audio code to use size_t more correctly,

webrtc/modules/audio_coding/neteq/normal.cc

Index: webrtc/modules/audio_coding/neteq/normal.cc
diff --git a/webrtc/modules/audio_coding/neteq/normal.cc b/webrtc/modules/audio_coding/neteq/normal.cc
index bf455c974c33c6ef0f42580822cb43d7f13e1723..a0ca7a50c7b4686cdb0a943bb701479dcea13410 100644
--- a/webrtc/modules/audio_coding/neteq/normal.cc
+++ b/webrtc/modules/audio_coding/neteq/normal.cc
@@ -45,7 +45,7 @@ int Normal::Process(const int16_t* input,
   output->PushBackInterleaved(input, length);
   int16_t* signal = &(*output)[0][0];
 
-  const unsigned fs_mult = fs_hz_ / 8000;
+  const size_t fs_mult = fs_hz_ / 8000;

[hlundin-webrtc, 2015/08/10 11:30:01]

not size_t

   assert(fs_mult > 0);
   // fs_shift = log2(fs_mult), rounded down.
   // Note that |fs_shift| is not "exact" for 48 kHz.
@@ -73,11 +73,10 @@ int Normal::Process(const int16_t* input,
       int16_t* signal = &(*output)[channel_ix][0];
       size_t length_per_channel = length / output->Channels();
       // Find largest absolute value in new data.
-      int16_t decoded_max = WebRtcSpl_MaxAbsValueW16(
-        signal,  static_cast<int>(length_per_channel));
+      int16_t decoded_max =
+          WebRtcSpl_MaxAbsValueW16(signal, length_per_channel);
       // Adjust muting factor if needed (to BGN level).
-      int energy_length = std::min(static_cast<int>(fs_mult * 64),
-                                   static_cast<int>(length_per_channel));
+      size_t energy_length = std::min(fs_mult * 64, length_per_channel);
       int scaling = 6 + fs_shift
           - WebRtcSpl_NormW32(decoded_max * decoded_max);
       scaling = std::max(scaling, 0);  // |scaling| should always be >= 0.
@@ -144,7 +143,7 @@ int Normal::Process(const int16_t* input,
     }
   } else if (last_mode == kModeRfc3389Cng) {
     assert(output->Channels() == 1);  // Not adapted for multi-channel yet.
-    static const int kCngLength = 32;
+    static const size_t kCngLength = 32;
     int16_t cng_output[kCngLength];
     // Reset mute factor and start up fresh.
     external_mute_factor_array[0] = 16384;