Android Screen Capturer.

webrtc/api/android/jni/peerconnection_jni.cc

 /*
  *  Copyright 2013 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.
  */
 
@@ skipping 1250 matching lines @@
   return (jlong)stream.release();
 }
 
 JOW(jlong, PeerConnectionFactory_nativeCreateVideoSource)(
     JNIEnv* jni, jclass, jlong native_factory, jobject j_egl_context,
     jobject j_video_capturer, jobject j_constraints) {
   // Create a cricket::VideoCapturer from |j_video_capturer|.
   rtc::scoped_refptr<webrtc::AndroidVideoCapturerDelegate> delegate =
       new rtc::RefCountedObject<AndroidVideoCapturerJni>(
           jni, j_video_capturer, j_egl_context);
+
+  jboolean is_screencast = jni->CallBooleanMethod(j_video_capturer,
+      GetMethodID(jni, FindClass(jni, "org/webrtc/VideoCapturer"),
+      "isScreencast", "()Z"));
+  CHECK_EXCEPTION(jni) << "error during creating native video source.";
+
   std::unique_ptr<cricket::VideoCapturer> capturer(
-      new webrtc::AndroidVideoCapturer(delegate));
+      new webrtc::AndroidVideoCapturer(delegate, is_screencast));
   // Create a webrtc::VideoTrackSourceInterface from the cricket::VideoCapturer,
   // native factory and constraints.
   std::unique_ptr<ConstraintsWrapper> constraints(
       new ConstraintsWrapper(jni, j_constraints));
   rtc::scoped_refptr<PeerConnectionFactoryInterface> factory(
       factoryFromJava(native_factory));
   rtc::scoped_refptr<VideoTrackSourceInterface> source(
       factory->CreateVideoSource(capturer.release(), constraints.get()));
   return (jlong)source.release();
 }
 
 JOW(jlong, PeerConnectionFactory_nativeCreateVideoSource2)
 (JNIEnv* jni, jclass, jlong native_factory, jobject j_egl_context) {
   OwnedFactoryAndThreads* factory =
       reinterpret_cast<OwnedFactoryAndThreads*>(native_factory);
 
   rtc::scoped_refptr<webrtc::AndroidVideoTrackSource> source(

[magjed_webrtc, 2016/08/24 12:19:22]

Can you update this create function as well? It should be easy to add a 'bool
is_screencast' to the AndroidVideoTrackSource ctor:
https://cs.chromium.org/chromium/src/third_party/webrtc/api/androidvideotrack...

[arsany, 2016/08/26 02:07:36]

Done.

       new rtc::RefCountedObject<webrtc::AndroidVideoTrackSource>(
           factory->signaling_thread(), jni, j_egl_context));
   rtc::scoped_refptr<webrtc::VideoTrackSourceProxy> proxy_source =
       webrtc::VideoTrackSourceProxy::Create(factory->signaling_thread(),
                                             factory->worker_thread(), source);
 
   return (jlong)proxy_source.release();
 }
 
 JOW(void, PeerConnectionFactory_nativeInitializeVideoCapturer)
@@ skipping 1048 matching lines @@
   return JavaStringFromStdString(
       jni,
       reinterpret_cast<RtpReceiverInterface*>(j_rtp_receiver_pointer)->id());
 }
 
 JOW(void, RtpReceiver_free)(JNIEnv* jni, jclass, jlong j_rtp_receiver_pointer) {
   reinterpret_cast<RtpReceiverInterface*>(j_rtp_receiver_pointer)->Release();
 }
 
 }  // namespace webrtc_jni