Refactor AudioParameters member setting.

media/base/audio_buffer_converter_unittest.cc

 // Copyright 2014 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/memory/scoped_ptr.h"
 #include "media/base/audio_buffer.h"
 #include "media/base/audio_buffer_converter.h"
 #include "media/base/sinc_resampler.h"
 #include "media/base/test_helpers.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 189 matching lines @@
   AddInput(
       MakeTestBuffer(kOutSampleRate, kOutChannelLayout, kOutChannelCount, 512));
   Reset();
   // Make sure we can keep using the AudioBufferConverter after we've Reset().
   AddInput(
       MakeTestBuffer(kOutSampleRate, kOutChannelLayout, kOutChannelCount, 512));
   ConsumeAllOutput();
 }
 
 TEST_F(AudioBufferConverterTest, DiscreteChannelLayout) {
-  output_params_ = AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
-                                   CHANNEL_LAYOUT_DISCRETE,
-                                   2,
-                                   kOutSampleRate,
-                                   16,
-                                   512,
-                                   0);
+  output_params_ =
+      AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
+                      CHANNEL_LAYOUT_DISCRETE, kOutSampleRate, 16, 512);
+  output_params_.set_channels_for_discrete(2);
   audio_buffer_converter_.reset(new AudioBufferConverter(output_params_));
   AddInput(MakeTestBuffer(kOutSampleRate, CHANNEL_LAYOUT_STEREO, 2, 512));
   ConsumeAllOutput();
 }
 
 TEST_F(AudioBufferConverterTest, LargeBuffersResampling) {
   output_params_ = AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY,
                                    kOutChannelLayout,
                                    kOutSampleRate,
                                    16,
@@ skipping 18 matching lines @@
 
   // Since the input buffer size is a multiple of the input request size there
   // should never be any frames remaining at this point.
   ASSERT_EQ(kInputFrameSize %
                 audio_buffer_converter_->input_buffer_size_for_testing(),
             0);
   EXPECT_EQ(0, audio_buffer_converter_->input_frames_left_for_testing());
 }
 
 }  // namespace media