peer_connection_factory.h

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/*

 *  Copyright 2011 The WebRTC project authors. All Rights Reserved.

 *  Use of this source code is governed by a BSD-style license

 *  that can be found in the LICENSE file in the root of the source

 *  tree. An additional intellectual property rights grant can be found

 *  in the file PATENTS.  All contributing project authors may

 *  be found in the AUTHORS file in the root of the source tree.

*/

#ifndef PC_PEER_CONNECTION_FACTORY_H_

#define PC_PEER_CONNECTION_FACTORY_H_

#include <stdint.h>

#include <stdio.h>

#include <memory>

#include <string>

#include "absl/strings/string_view.h"

#include "api/audio_options.h"

#include "api/fec_controller.h"

#include "api/field_trials_view.h"

#include "api/media_stream_interface.h"

#include "api/media_types.h"

#include "api/metronome/metronome.h"

#include "api/neteq/neteq_factory.h"

#include "api/network_state_predictor.h"

#include "api/peer_connection_interface.h"

#include "api/rtc_error.h"

#include "api/rtc_event_log/rtc_event_log_factory_interface.h"

#include "api/rtp_parameters.h"

#include "api/scoped_refptr.h"

#include "api/sequence_checker.h"

#include "api/transport/network_control.h"

#include "api/transport/sctp_transport_factory_interface.h"

#include "call/call.h"

#include "call/rtp_transport_controller_send_factory_interface.h"

#include "p2p/base/port_allocator.h"

#include "pc/connection_context.h"

#include "rtc_base/checks.h"

#include "rtc_base/rtc_certificate_generator.h"

#include "rtc_base/thread.h"

#include "rtc_base/thread_annotations.h"

namespace rtc {

class BasicNetworkManager;

class BasicPacketSocketFactory;

}  // namespace rtc

namespace webrtc {

class PeerConnectionFactory : public PeerConnectionFactoryInterface {

 public:

  // Creates a PeerConnectionFactory. It returns nullptr on initialization

  // error.

//

  // The Dependencies structure allows simple management of all new

  // dependencies being added to the PeerConnectionFactory.

  static rtc::scoped_refptr<PeerConnectionFactory> Create(

      PeerConnectionFactoryDependencies dependencies);

  void SetOptions(const Options& options) override;

  RTCErrorOr<rtc::scoped_refptr<PeerConnectionInterface>>

  CreatePeerConnectionOrError(

      const PeerConnectionInterface::RTCConfiguration& configuration,

      PeerConnectionDependencies dependencies) override;

  RtpCapabilities GetRtpSenderCapabilities(

      cricket::MediaType kind) const override;

  RtpCapabilities GetRtpReceiverCapabilities(

      cricket::MediaType kind) const override;

  rtc::scoped_refptr<MediaStreamInterface> CreateLocalMediaStream(

      const std::string& stream_id) override;

  rtc::scoped_refptr<AudioSourceInterface> CreateAudioSource(

      const cricket::AudioOptions& options) override;

  rtc::scoped_refptr<VideoTrackInterface> CreateVideoTrack(

      rtc::scoped_refptr<VideoTrackSourceInterface> video_source,

      absl::string_view id) override;

  rtc::scoped_refptr<AudioTrackInterface> CreateAudioTrack(

      const std::string& id,

      AudioSourceInterface* audio_source) override;

  bool StartAecDump(FILE* file, int64_t max_size_bytes) override;

  void StopAecDump() override;

  SctpTransportFactoryInterface* sctp_transport_factory() {

    return context_->sctp_transport_factory();

  rtc::Thread* signaling_thread() const {

    // This method can be called on a different thread when the factory is

    // created in CreatePeerConnectionFactory().

    return context_->signaling_thread();

  rtc::Thread* worker_thread() const { return context_->worker_thread(); }

  const Options& options() const {

    RTC_DCHECK_RUN_ON(signaling_thread());

    return options_;

  const FieldTrialsView& field_trials() const {

    return context_->env().field_trials();

  cricket::MediaEngineInterface* media_engine() const;

 protected:

  // Constructor used by the static Create() method. Modifies the dependencies.

  PeerConnectionFactory(rtc::scoped_refptr<ConnectionContext> context,

                        PeerConnectionFactoryDependencies* dependencies);

  // Constructor for use in testing. Ignores the possibility of initialization

  // failure. The dependencies are passed in by std::move().

  explicit PeerConnectionFactory(

      PeerConnectionFactoryDependencies dependencies);

  virtual ~PeerConnectionFactory();

 private:

  rtc::Thread* network_thread() const { return context_->network_thread(); }

  bool IsTrialEnabled(absl::string_view key) const;

  std::unique_ptr<Call> CreateCall_w(

      const Environment& env,

      const PeerConnectionInterface::RTCConfiguration& configuration,

      std::unique_ptr<NetworkControllerFactoryInterface>

          network_controller_factory);

  rtc::scoped_refptr<ConnectionContext> context_;

  PeerConnectionFactoryInterface::Options options_

      RTC_GUARDED_BY(signaling_thread());

  std::unique_ptr<RtcEventLogFactoryInterface> event_log_factory_;

  std::unique_ptr<FecControllerFactoryInterface> fec_controller_factory_;

  std::unique_ptr<NetworkStatePredictorFactoryInterface>

      network_state_predictor_factory_;

  std::unique_ptr<NetworkControllerFactoryInterface>

      injected_network_controller_factory_;

  std::unique_ptr<NetEqFactory> neteq_factory_;

  const std::unique_ptr<RtpTransportControllerSendFactoryInterface>

      transport_controller_send_factory_;

  std::unique_ptr<Metronome> decode_metronome_ RTC_GUARDED_BY(worker_thread());

  std::unique_ptr<Metronome> encode_metronome_ RTC_GUARDED_BY(worker_thread());

};

}  // namespace webrtc

#endif  // PC_PEER_CONNECTION_FACTORY_H_