Make AudioParameters a class instead of a struct

media/audio/simple_sources_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/logging.h"
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
 #include "media/audio/audio_manager.h"
 #include "media/audio/fake_audio_output_stream.h"
@@ skipping 53 matching lines @@
   const uint32 samples = 1024;
   const uint32 bytes_per_sample = 2;
   const int freq = 200;
 
   SineWaveAudioSource source(SineWaveAudioSource::FORMAT_16BIT_LINEAR_PCM, 1,
                              freq, AudioParameters::kTelephoneSampleRate);
 
   scoped_ptr<AudioManager> audio_man(AudioManager::Create());
   AudioParameters params(
       AudioParameters::AUDIO_MOCK, CHANNEL_LAYOUT_MONO,
-      AudioParameters::kTelephoneSampleRate, bytes_per_sample * 2, samples);
+      AudioParameters::kTelephoneSampleRate, bytes_per_sample * 8, samples);
   AudioOutputStream* oas = audio_man->MakeAudioOutputStream(params);
   ASSERT_TRUE(NULL != oas);
   EXPECT_TRUE(oas->Open());
 
   oas->Start(&source);
   oas->Stop();
 
   ASSERT_TRUE(FakeAudioOutputStream::GetCurrentFakeStream());
   const int16* last_buffer =
       reinterpret_cast<int16*>(
           FakeAudioOutputStream::GetCurrentFakeStream()->buffer());
   ASSERT_TRUE(NULL != last_buffer);
 
   uint32 half_period = AudioParameters::kTelephoneSampleRate / (freq * 2);
 
   // Spot test positive incursion of sine wave.
   EXPECT_EQ(0, last_buffer[0]);
   EXPECT_EQ(5126, last_buffer[1]);
   EXPECT_TRUE(last_buffer[1] < last_buffer[2]);
   EXPECT_TRUE(last_buffer[2] < last_buffer[3]);
   // Spot test negative incursion of sine wave.
   EXPECT_EQ(0, last_buffer[half_period]);
   EXPECT_EQ(-5126, last_buffer[half_period + 1]);
   EXPECT_TRUE(last_buffer[half_period + 1] > last_buffer[half_period + 2]);
   EXPECT_TRUE(last_buffer[half_period + 2] > last_buffer[half_period + 3]);
   oas->Close();
 }