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}diff --git a/examples/objcnativeapi/objc/objccallclient.h b/examples/objcnativeapi/objc/objccallclient.h
new file mode 100644
index 0000000..e48aae4
--- /dev/null
+++ 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_