Adding "adapter" ORTC objects on top of ChannelManager/BaseChannel/etc.

webrtc/ortc/ortcfactory.h

+/*
+ *  Copyright 2017 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 WEBRTC_ORTC_ORTCFACTORY_H_
+#define WEBRTC_ORTC_ORTCFACTORY_H_
+
+#include <memory>
+#include <string>
+
+#include "webrtc/api/ortc/ortcfactoryinterface.h"
+#include "webrtc/base/constructormagic.h"
+#include "webrtc/base/scoped_ref_ptr.h"
+#include "webrtc/media/base/mediaengine.h"
+#include "webrtc/media/engine/webrtcmediaengine.h"
+#include "webrtc/pc/channelmanager.h"
+
+namespace webrtc {
+
+// Implementation of OrtcFactoryInterface.
+//
+// See ortcfactoryinterface.h for documentation.
+class OrtcFactory : public OrtcFactoryInterface {
+ public:
+  ~OrtcFactory() override;
+
+  // Internal-only Create method that allows passing in a fake media engine,
+  // for testing.
+  static RTCErrorOr<std::unique_ptr<OrtcFactoryInterface>> Create(
+      rtc::Thread* network_thread,
+      rtc::Thread* signaling_thread,
+      rtc::NetworkManager* network_manager,
+      rtc::PacketSocketFactory* socket_factory,
+      AudioDeviceModule* adm,
+      std::unique_ptr<cricket::MediaEngineInterface> media_engine);
+
+  RTCErrorOr<std::unique_ptr<RtpTransportControllerInterface>>
+  CreateRtpTransportController() override;
+
+  RTCErrorOr<std::unique_ptr<RtpTransportInterface>> CreateRtpTransport(
+      const RtcpParameters& rtcp_parameters,
+      PacketTransportInterface* rtp,
+      PacketTransportInterface* rtcp,
+      RtpTransportControllerInterface* transport_controller) override;
+
+  RtpCapabilities GetRtpSenderCapabilities(
+      cricket::MediaType kind) const override;
+
+  RTCErrorOr<std::unique_ptr<OrtcRtpSenderInterface>> CreateRtpSender(
+      rtc::scoped_refptr<MediaStreamTrackInterface> track,
+      RtpTransportInterface* transport) override;
+
+  RTCErrorOr<std::unique_ptr<OrtcRtpSenderInterface>> CreateRtpSender(
+      cricket::MediaType kind,
+      RtpTransportInterface* transport) override;
+
+  RtpCapabilities GetRtpReceiverCapabilities(
+      cricket::MediaType kind) const override;
+
+  RTCErrorOr<std::unique_ptr<OrtcRtpReceiverInterface>> CreateRtpReceiver(
+      cricket::MediaType kind,
+      RtpTransportInterface* transport) override;
+
+  RTCErrorOr<std::unique_ptr<UdpTransportInterface>>
+  CreateUdpTransport(int family, uint16_t min_port, uint16_t max_port) override;
+
+  rtc::scoped_refptr<AudioSourceInterface> CreateAudioSource(
+      const cricket::AudioOptions& options) override;
+
+  rtc::scoped_refptr<VideoTrackSourceInterface> CreateVideoSource(
+      std::unique_ptr<cricket::VideoCapturer> capturer,
+      const MediaConstraintsInterface* constraints) override;
+
+  rtc::scoped_refptr<VideoTrackInterface> CreateVideoTrack(
+      const std::string& id,
+      VideoTrackSourceInterface* source) override;
+
+  rtc::scoped_refptr<AudioTrackInterface> CreateAudioTrack(
+      const std::string& id,
+      AudioSourceInterface* source) override;
+
+  rtc::Thread* network_thread() { return network_thread_; }
+  rtc::Thread* worker_thread() { return worker_thread_.get(); }
+  rtc::Thread* signaling_thread() { return signaling_thread_; }
+
+ private:
+  // Should only be called by OrtcFactoryInterface::Create.
+  OrtcFactory(rtc::Thread* network_thread,
+              rtc::Thread* signaling_thread,
+              rtc::NetworkManager* network_manager,
+              rtc::PacketSocketFactory* socket_factory,
+              AudioDeviceModule* adm);
+
+  // Thread::Invoke doesn't support move-only arguments, so we need to remove
+  // the unique_ptr wrapper from media_engine. TODO(deadbeef): Fix this.
+  static RTCErrorOr<std::unique_ptr<OrtcFactoryInterface>> Create_s(
+      rtc::Thread* network_thread,
+      rtc::Thread* signaling_thread,
+      rtc::NetworkManager* network_manager,
+      rtc::PacketSocketFactory* socket_factory,
+      AudioDeviceModule* adm,
+      cricket::MediaEngineInterface* media_engine);
+
+  // Performs initialization that can fail. Called by factory method after
+  // construction, and if it fails, no object is returned.
+  RTCError Initialize(
+      std::unique_ptr<cricket::MediaEngineInterface> media_engine);
+  std::unique_ptr<cricket::MediaEngineInterface> CreateMediaEngine_w();
+
+  // Threads and networking objects.
+  rtc::Thread* network_thread_;
+  rtc::Thread* signaling_thread_;
+  rtc::NetworkManager* network_manager_;
+  rtc::PacketSocketFactory* socket_factory_;
+  AudioDeviceModule* adm_;
+  // If we created/own the objects above, these will be non-null and thus will
+  // be released automatically upon destruction.
+  std::unique_ptr<rtc::Thread> owned_network_thread_;
+  bool wraps_signaling_thread_ = false;
+  std::unique_ptr<rtc::NetworkManager> owned_network_manager_;
+  std::unique_ptr<rtc::PacketSocketFactory> owned_socket_factory_;
+  // We always own the worker thread.
+  std::unique_ptr<rtc::Thread> worker_thread_;
+  // Media-releated objects.
+  std::unique_ptr<RtcEventLog> null_event_log_;
+  rtc::scoped_refptr<AudioDecoderFactory> audio_decoder_factory_;
+  std::unique_ptr<cricket::ChannelManager> channel_manager_;
+  // Default CNAME to use for RtpTransports if none is passed in.
+  std::string default_cname_;
+
+  friend class OrtcFactoryInterface;
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(OrtcFactory);
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_ORTC_ORTCFACTORY_H_