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// Copyright 2018 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_INPUT_STREAM_H_
#define SERVICES_AUDIO_INPUT_STREAM_H_
#include <memory>
#include <string>
#include "base/memory/scoped_refptr.h"
#include "base/sync_socket.h"
#include "base/unguessable_token.h"
#include "media/mojo/mojom/audio_data_pipe.mojom.h"
#include "media/mojo/mojom/audio_input_stream.mojom.h"
#include "media/mojo/mojom/audio_logging.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/shared_remote.h"
#include "services/audio/input_controller.h"
namespace media {
class AudioManager;
class AudioParameters;
} // namespace media
namespace audio {
class InputSyncWriter;
class UserInputMonitor;
class InputStream final : public media::mojom::AudioInputStream,
public InputController::EventHandler {
public:
using CreatedCallback =
base::OnceCallback<void(media::mojom::ReadOnlyAudioDataPipePtr,
bool,
const base::Optional<base::UnguessableToken>&)>;
using DeleteCallback = base::OnceCallback<void(InputStream*)>;
InputStream(
CreatedCallback created_callback,
DeleteCallback delete_callback,
mojo::PendingReceiver<media::mojom::AudioInputStream> receiver,
mojo::PendingRemote<media::mojom::AudioInputStreamClient> client,
mojo::PendingRemote<media::mojom::AudioInputStreamObserver> observer,
mojo::PendingRemote<media::mojom::AudioLog> log,
media::AudioManager* manager,
std::unique_ptr<UserInputMonitor> user_input_monitor,
const std::string& device_id,
const media::AudioParameters& params,
uint32_t shared_memory_count,
bool enable_agc);
~InputStream() override;
const base::UnguessableToken& id() const { return id_; }
void SetOutputDeviceForAec(const std::string& output_device_id);
// media::mojom::AudioInputStream implementation.
void Record() override;
void SetVolume(double volume) override;
// InputController::EventHandler implementation.
void OnCreated(bool initially_muted) override;
void OnError(InputController::ErrorCode error_code) override;
void OnLog(base::StringPiece) override;
void OnMuted(bool is_muted) override;
private:
void OnStreamError(bool signalPlatformError);
void CallDeleter();
void SendLogMessage(const char* format, ...) PRINTF_FORMAT(2, 3);
const base::UnguessableToken id_;
mojo::Receiver<media::mojom::AudioInputStream> receiver_;
mojo::Remote<media::mojom::AudioInputStreamClient> client_;
mojo::Remote<media::mojom::AudioInputStreamObserver> observer_;
const mojo::SharedRemote<media::mojom::AudioLog> log_;
// Notify stream client on creation.
CreatedCallback created_callback_;
// Notify stream factory (audio service) on destruction.
DeleteCallback delete_callback_;
base::CancelableSyncSocket foreign_socket_;
const std::unique_ptr<InputSyncWriter> writer_;
std::unique_ptr<InputController> controller_;
const std::unique_ptr<UserInputMonitor> user_input_monitor_;
SEQUENCE_CHECKER(owning_sequence_);
base::WeakPtrFactory<InputStream> weak_factory_{this};
DISALLOW_COPY_AND_ASSIGN(InputStream);
};
} // namespace audio
#endif // SERVICES_AUDIO_INPUT_STREAM_H_
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