Support Opus Ambisonics playback

media/base/fake_audio_renderer_sink.cc

 // Copyright 2013 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/base/fake_audio_renderer_sink.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 
 namespace media {
 
 FakeAudioRendererSink::FakeAudioRendererSink()
     : FakeAudioRendererSink(
           AudioParameters(AudioParameters::AUDIO_FAKE,
                           CHANNEL_LAYOUT_STEREO,
                           AudioParameters::kTelephoneSampleRate,
                           16,
                           1)) {}
 
 FakeAudioRendererSink::FakeAudioRendererSink(
     const AudioParameters& hardware_params)
     : state_(kUninitialized),
       callback_(nullptr),
       output_device_info_(std::string(),
                           OUTPUT_DEVICE_STATUS_OK,
-                          hardware_params) {}
+                          hardware_params),
+      is_optimized_for_hw_params_(true) {}
 
 FakeAudioRendererSink::~FakeAudioRendererSink() {
   DCHECK(!callback_);
 }
 
 void FakeAudioRendererSink::Initialize(const AudioParameters& params,
                                        RenderCallback* callback) {
   DCHECK(state_ == kUninitialized || state_ == kStopped);
   DCHECK(!callback_);
   DCHECK(callback);
@@ skipping 25 matching lines @@
 
 bool FakeAudioRendererSink::SetVolume(double volume) {
   return true;
 }
 
 OutputDeviceInfo FakeAudioRendererSink::GetOutputDeviceInfo() {
   return output_device_info_;
 }
 
 bool FakeAudioRendererSink::IsOptimizedForHardwareParameters() {
-  return true;
+  return is_optimized_for_hw_params_;
 }
 
 bool FakeAudioRendererSink::CurrentThreadIsRenderingThread() {
   NOTIMPLEMENTED();
   return false;
 }
 
 bool FakeAudioRendererSink::Render(AudioBus* dest,
                                    base::TimeDelta delay,
                                    int* frames_written) {
   if (state_ != kPlaying)
     return false;
 
   *frames_written = callback_->Render(delay, base::TimeTicks::Now(), 0, dest);
   return true;
 }
 
 void FakeAudioRendererSink::OnRenderError() {
   DCHECK_NE(state_, kUninitialized);
   DCHECK_NE(state_, kStopped);
 
   callback_->OnRenderError();
 }
 
+void FakeAudioRendererSink::SetIsOptimizedForHardwareParameters(bool value) {
+  is_optimized_for_hw_params_ = value;
+}
+
 void FakeAudioRendererSink::ChangeState(State new_state) {
   static const char* kStateNames[] = {
     "kUninitialized",
     "kInitialized",
     "kStarted",
     "kPaused",
     "kPlaying",
     "kStopped"
   };
 
   DVLOG(1) << __func__ << " : " << kStateNames[state_] << " -> "
            << kStateNames[new_state];
   state_ = new_state;
 }
 
 }  // namespace media