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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 COMPONENTS_MIRRORING_SERVICE_SESSION_H_
#define COMPONENTS_MIRRORING_SERVICE_SESSION_H_
#include "base/memory/weak_ptr.h"
#include "base/single_thread_task_runner.h"
#include "components/mirroring/service/interface.h"
#include "components/mirroring/service/rtp_stream.h"
#include "media/cast/cast_environment.h"
#include "media/cast/net/cast_transport_defines.h"
namespace media {
namespace cast {
class CastTransport;
} // namespace cast
} // namespace media
namespace mirroring {
class VideoCaptureClient;
class Session final : public RtpStreamClient {
public:
Session(SessionType session_type,
const net::IPEndPoint& receiver_endpoint,
SessionClient* client);
~Session() override;
// RtpStreamClient implemenation.
void OnError(const std::string& message) override;
void RequestRefreshFrame() override;
media::VideoEncodeAccelerator::SupportedProfiles
GetSupportedVideoEncodeAcceleratorProfiles() override;
void CreateVideoEncodeAccelerator(
const media::cast::ReceiveVideoEncodeAcceleratorCallback& callback)
override;
void CreateVideoEncodeMemory(
size_t size,
const media::cast::ReceiveVideoEncodeMemoryCallback& callback) override;
// Callbacks by media::cast::CastTransport::Client.
void OnTransportStatusChanged(media::cast::CastTransportStatus status);
void OnLoggingEventsReceived(
std::unique_ptr<std::vector<media::cast::FrameEvent>> frame_events,
std::unique_ptr<std::vector<media::cast::PacketEvent>> packet_events);
private:
// Callback when OFFER/ANSWER message exchange finishes. Starts a mirroing
// session.
void StartInternal(const net::IPEndPoint& receiver_endpoint,
const media::cast::FrameSenderConfig& audio_config,
const media::cast::FrameSenderConfig& video_config);
void StopSession();
// Notify |client_| that error occurred and close the session.
void ReportError(SessionError error);
// Callback by Audio/VideoSender to indicate encoder status change.
void OnEncoderStatusChange(media::cast::OperationalStatus status);
// Callback by media::cast::VideoSender to set a new target playout delay.
void SetTargetPlayoutDelay(base::TimeDelta playout_delay);
// Callback by |start_timeout_timer_|.
void OnOfferAnswerExchangeTimeout();
SessionClient* client_ = nullptr;
// Create on StartInternal().
std::unique_ptr<AudioRtpStream> audio_stream_;
std::unique_ptr<VideoRtpStream> video_stream_;
std::unique_ptr<VideoCaptureClient> video_capture_client_;
scoped_refptr<media::cast::CastEnvironment> cast_environment_ = nullptr;
std::unique_ptr<media::cast::CastTransport> cast_transport_;
scoped_refptr<base::SingleThreadTaskRunner> audio_encode_thread_ = nullptr;
scoped_refptr<base::SingleThreadTaskRunner> video_encode_thread_ = nullptr;
// Fire if the OFFER/ANSWER exchange times out.
base::OneShotTimer start_timeout_timer_;
base::WeakPtrFactory<Session> weak_factory_;
};
} // namespace mirroring
#endif // COMPONENTS_MIRRORING_SERVICE_SESSION_H_
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