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// 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"
#include "base/threading/sequenced_task_runner_handle.h"
namespace media {
FakeAudioRendererSink::FakeAudioRendererSink()
: FakeAudioRendererSink(
AudioParameters(AudioParameters::AUDIO_FAKE,
CHANNEL_LAYOUT_STEREO,
AudioParameters::kTelephoneSampleRate,
1)) {}
FakeAudioRendererSink::FakeAudioRendererSink(
const AudioParameters& hardware_params)
: state_(kUninitialized),
callback_(nullptr),
output_device_info_(std::string(),
OUTPUT_DEVICE_STATUS_OK,
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);
callback_ = callback;
ChangeState(kInitialized);
}
void FakeAudioRendererSink::Start() {
DCHECK_EQ(state_, kInitialized);
ChangeState(kStarted);
}
void FakeAudioRendererSink::Stop() {
callback_ = nullptr;
ChangeState(kStopped);
}
void FakeAudioRendererSink::Flush() {
DCHECK_NE(state_, kPlaying);
}
void FakeAudioRendererSink::Pause() {
DCHECK(state_ == kStarted || state_ == kPlaying) << "state_ " << state_;
ChangeState(kPaused);
}
void FakeAudioRendererSink::Play() {
DCHECK(state_ == kStarted || state_ == kPaused) << "state_ " << state_;
DCHECK_EQ(state_, kPaused);
ChangeState(kPlaying);
}
bool FakeAudioRendererSink::SetVolume(double volume) {
return true;
}
OutputDeviceInfo FakeAudioRendererSink::GetOutputDeviceInfo() {
return output_device_info_;
}
void FakeAudioRendererSink::GetOutputDeviceInfoAsync(
OutputDeviceInfoCB info_cb) {
base::SequencedTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::BindOnce(std::move(info_cb), output_device_info_));
}
bool FakeAudioRendererSink::IsOptimizedForHardwareParameters() {
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
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