Add an example app for iOS native API.

Demonstrates how to use the iOS native API to wrap components into C++ classes. This CL also introduces a native API wrapper for the capturer. The C++ code is forked from the corresponding CL for Android at https://webrtc-review.googlesource.com/c/src/+/60540 Bug: webrtc:8832 Change-Id: I12d9f30e701c0222628e329218f6d5bfca26e6e0 Reviewed-on: https://webrtc-review.googlesource.com/61422 Commit-Queue: Anders Carlsson <andersc@webrtc.org> Reviewed-by: Kári Helgason <kthelgason@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22484}
2018-03-15 09:41:03 +01:00
parent 8cf0a87bc3
commit 7311918269
18 changed files with 817 additions and 5 deletions
--- a/examples/objcnativeapi/objc/objccallclient.h
+++ b/examples/objcnativeapi/objc/objccallclient.h
@ -0,0 +1,84 @@
+/*
+ *  Copyright 2018 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 EXAMPLES_OBJCNATIVEAPI_OBJCCALLCLIENT_H_
+#define EXAMPLES_OBJCNATIVEAPI_OBJCCALLCLIENT_H_
+
+#include <memory>
+#include <string>
+
+#include "api/peerconnectioninterface.h"
+#include "rtc_base/criticalsection.h"
+#include "rtc_base/scoped_ref_ptr.h"
+#include "rtc_base/thread_checker.h"
+
+@class RTCVideoCapturer;
+@protocol RTCVideoRenderer;
+
+namespace webrtc_examples {
+
+class ObjCCallClient {
+ public:
+  ObjCCallClient();
+
+  void Call(RTCVideoCapturer* capturer, id<RTCVideoRenderer> remote_renderer);
+  void Hangup();
+
+ private:
+  class PCObserver : public webrtc::PeerConnectionObserver {
+   public:
+    explicit PCObserver(ObjCCallClient* client);
+
+    void OnSignalingChange(
+        webrtc::PeerConnectionInterface::SignalingState new_state) override;
+    void OnDataChannel(
+        rtc::scoped_refptr<webrtc::DataChannelInterface> data_channel) override;
+    void OnRenegotiationNeeded() override;
+    void OnIceConnectionChange(
+        webrtc::PeerConnectionInterface::IceConnectionState new_state) override;
+    void OnIceGatheringChange(
+        webrtc::PeerConnectionInterface::IceGatheringState new_state) override;
+    void OnIceCandidate(
+        const webrtc::IceCandidateInterface* candidate) override;
+
+   private:
+    const ObjCCallClient* client_;
+  };
+
+  void CreatePeerConnectionFactory() RTC_RUN_ON(thread_checker_);
+  void CreatePeerConnection() RTC_RUN_ON(thread_checker_);
+  void Connect() RTC_RUN_ON(thread_checker_);
+
+  rtc::ThreadChecker thread_checker_;
+
+  bool call_started_ RTC_GUARDED_BY(thread_checker_);
+
+  const std::unique_ptr<PCObserver> pc_observer_;
+
+  rtc::scoped_refptr<webrtc::PeerConnectionFactoryInterface> pcf_
+      RTC_GUARDED_BY(thread_checker_);
+  std::unique_ptr<rtc::Thread> network_thread_ RTC_GUARDED_BY(thread_checker_);
+  std::unique_ptr<rtc::Thread> worker_thread_ RTC_GUARDED_BY(thread_checker_);
+  std::unique_ptr<rtc::Thread> signaling_thread_
+      RTC_GUARDED_BY(thread_checker_);
+
+  std::unique_ptr<rtc::VideoSinkInterface<webrtc::VideoFrame>> remote_sink_
+      RTC_GUARDED_BY(thread_checker_);
+  rtc::scoped_refptr<webrtc::VideoTrackSourceInterface> video_source_
+      RTC_GUARDED_BY(thread_checker_);
+
+  rtc::CriticalSection pc_mutex_;
+  rtc::scoped_refptr<webrtc::PeerConnectionInterface> pc_
+      RTC_GUARDED_BY(pc_mutex_);
+};
+
+}  // namespace webrtc_examples
+
+#endif  // EXAMPLES_OBJCNATIVEAPI_OBJCCALLCLIENT_H_