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// Copyright 2017 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.
#ifndef SERVICES_AUDIO_SYSTEM_INFO_H_
#define SERVICES_AUDIO_SYSTEM_INFO_H_
#include <memory>
#include <string>
#include "base/macros.h"
#include "base/sequence_checker.h"
#include "media/audio/audio_system_helper.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "services/audio/public/mojom/system_info.mojom.h"
namespace media {
class AudioManager;
}
namespace audio {
class SystemInfo : public mojom::SystemInfo {
public:
explicit SystemInfo(media::AudioManager* audio_manager);
~SystemInfo() override;
void Bind(mojo::PendingReceiver<mojom::SystemInfo> receiver);
private:
// audio::mojom::SystemInfo implementation.
void GetInputStreamParameters(
const std::string& device_id,
GetInputStreamParametersCallback callback) override;
void GetOutputStreamParameters(
const std::string& device_id,
GetOutputStreamParametersCallback callback) override;
void HasInputDevices(HasInputDevicesCallback callback) override;
void HasOutputDevices(HasOutputDevicesCallback callback) override;
void GetInputDeviceDescriptions(
GetInputDeviceDescriptionsCallback callback) override;
void GetOutputDeviceDescriptions(
GetOutputDeviceDescriptionsCallback callback) override;
void GetAssociatedOutputDeviceID(
const std::string& input_device_id,
GetAssociatedOutputDeviceIDCallback callback) override;
void GetInputDeviceInfo(const std::string& input_device_id,
GetInputDeviceInfoCallback callback) override;
media::AudioSystemHelper helper_;
mojo::ReceiverSet<mojom::SystemInfo> receivers_;
// Validates thread-safe access to |bindings_| only. |helper_| takes care of
// its thread safety/affinity itself.
SEQUENCE_CHECKER(binding_sequence_checker_);
DISALLOW_COPY_AND_ASSIGN(SystemInfo);
};
} // namespace audio
#endif // SERVICES_AUDIO_SYSTEM_INFO_H_
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