Refactor AudioParameters member setting.

media/audio/audio_manager_base.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 "media/audio/audio_manager_base.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 245 matching lines @@
       // output device based on the input parameters.  This may happen if the OS
       // provided us junk values for the hardware configuration.
       LOG(ERROR) << "Invalid audio output parameters received; using fake "
                  << "audio path. Channels: " << output_params.channels() << ", "
                  << "Sample Rate: " << output_params.sample_rate() << ", "
                  << "Bits Per Sample: " << output_params.bits_per_sample()
                  << ", Frames Per Buffer: "
                  << output_params.frames_per_buffer();
 
       // Tell the AudioManager to create a fake output device.
-      output_params = AudioParameters(
-          AudioParameters::AUDIO_FAKE, params.channel_layout(),
-          params.sample_rate(), params.bits_per_sample(),
-          params.frames_per_buffer(), params.effects());
+      output_params = params;
+      output_params.set_format(AudioParameters::AUDIO_FAKE);
     } else if (params.effects() != output_params.effects()) {
       // Turn off effects that weren't requested.
-      output_params = AudioParameters(
-          output_params.format(), output_params.channel_layout(),
-          output_params.channels(), output_params.sample_rate(),
-          output_params.bits_per_sample(), output_params.frames_per_buffer(),
-          params.effects() & output_params.effects());
+      output_params.set_effects(params.effects() & output_params.effects());
     }
   }
 
   DispatcherParams* dispatcher_params =
       new DispatcherParams(params, output_params, output_device_id);
 
   AudioOutputDispatchers::iterator it =
       std::find_if(output_dispatchers_.begin(), output_dispatchers_.end(),
                    CompareByParams(dispatcher_params));
   if (it != output_dispatchers_.end()) {
@@ skipping 126 matching lines @@
 scoped_ptr<AudioLog> AudioManagerBase::CreateAudioLog(
     AudioLogFactory::AudioComponent component) {
   return audio_log_factory_->CreateAudioLog(component);
 }
 
 void AudioManagerBase::SetHasKeyboardMic() {
   NOTREACHED();
 }
 
 }  // namespace media