Convert channel counts to size_t.

webrtc/modules/audio_coding/test/opus_test.cc

 /*
  *  Copyright (c) 2013 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 44 matching lines @@
     opus_stereo_decoder_ = NULL;
   }
 }
 
 void OpusTest::Perform() {
 #ifndef WEBRTC_CODEC_OPUS
   // Opus isn't defined, exit.
   return;
 #else
   uint16_t frequency_hz;
-  int audio_channels;
+  size_t audio_channels;
   int16_t test_cntr = 0;
 
   // Open both mono and stereo test files in 32 kHz.
   const std::string file_name_stereo =
       webrtc::test::ResourcePath("audio_coding/teststereo32kHz", "pcm");
   const std::string file_name_mono =
       webrtc::test::ResourcePath("audio_coding/testfile32kHz", "pcm");
   frequency_hz = 32000;
   in_file_stereo_.Open(file_name_stereo, frequency_hz, "rb");
   in_file_stereo_.ReadStereo(true);
@@ skipping 122 matching lines @@
   Run(channel_a2b_, audio_channels, 64000, 960, 10);
 
   // Close the files.
   in_file_stereo_.Close();
   in_file_mono_.Close();
   out_file_.Close();
   out_file_standalone_.Close();
 #endif
 }
 
-void OpusTest::Run(TestPackStereo* channel, int channels, int bitrate,
+void OpusTest::Run(TestPackStereo* channel, size_t channels, int bitrate,
                    size_t frame_length, int percent_loss) {
   AudioFrame audio_frame;
   int32_t out_freq_hz_b = out_file_.SamplingFrequency();
   const size_t kBufferSizeSamples = 480 * 12 * 2;  // 120 ms stereo audio.
   int16_t audio[kBufferSizeSamples];
   int16_t out_audio[kBufferSizeSamples];
   int16_t audio_type;
   size_t written_samples = 0;
   size_t read_samples = 0;
   size_t decoded_samples = 0;
@@ skipping 155 matching lines @@
   out_file_.Open(file_name, 48000, "wb");
   file_stream.str("");
   file_name = file_stream.str();
   file_stream << webrtc::test::OutputPath() << "opusstandalone_out_"
       << test_number << ".pcm";
   file_name = file_stream.str();
   out_file_standalone_.Open(file_name, 48000, "wb");
 }
 
 }  // namespace webrtc