output_stream.cc | Explore in Territory

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "services/audio/output_stream.h"

#include <utility>

#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/strings/stringprintf.h"
#include "base/task/sequenced_task_runner.h"
#include "base/trace_event/trace_event.h"
#include "third_party/abseil-cpp/absl/utility/utility.h"

namespace audio {

std::string GetCtorLogString(media::AudioManager* audio_manager,
                             const std::string& device_id,
                             const media::AudioParameters& params) { … }

class AudibilityHelperImpl : public OutputStream::AudibilityHelper { … };

OutputStream::OutputStream(
    CreatedCallback created_callback,
    DeleteCallback delete_callback,
    ManagedDeviceOutputStreamCreateCallback
        managed_device_output_stream_create_callback,
    mojo::PendingReceiver<media::mojom::AudioOutputStream> stream_receiver,
    mojo::PendingReceiver<media::mojom::DeviceSwitchInterface>
        device_switch_receiver,
    mojo::PendingAssociatedRemote<media::mojom::AudioOutputStreamObserver>
        observer,
    mojo::PendingRemote<media::mojom::AudioLog> log,
    media::AudioManager* audio_manager,
    const std::string& output_device_id,
    const media::AudioParameters& params,
    LoopbackCoordinator* coordinator,
    const base::UnguessableToken& loopback_group_id)
    : … { … }

OutputStream::~OutputStream() { … }

void OutputStream::Play() { … }

void OutputStream::Pause() { … }

void OutputStream::Flush() { … }

void OutputStream::SetVolume(double volume) { … }

void OutputStream::SwitchAudioOutputDeviceId(
    const std::string& output_device_id) { … }

void OutputStream::CreateAudioPipe(CreatedCallback created_callback) { … }

void OutputStream::OnControllerPlaying() { … }

void OutputStream::OnControllerPaused() { … }

void OutputStream::OnControllerError() { … }

void OutputStream::OnLog(std::string_view message) { … }

void OutputStream::OnError() { … }

void OutputStream::CallDeleter() { … }

// TODO(crbug.com/40104418): it might be useful to track these transitions with
// logs as well but note that the method is called at a rather high rate.
void OutputStream::OnAudibleStateChanged(bool is_audible) { … }

void OutputStream::SendLogMessage(const char* format, ...) { … }

// Static
std::unique_ptr<OutputStream::AudibilityHelper>
OutputStream::MakeAudibilityHelperForTest() { … }

}  // namespace audio
chromium/services/audio/output_stream.cc
