Android Screen Capturer.

webrtc/api/androidvideotracksource.h

 /*
  *  Copyright (c) 2016 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 13 matching lines @@
 #include "webrtc/media/base/videobroadcaster.h"
 #include "webrtc/media/base/videosinkinterface.h"
 #include "third_party/libyuv/include/libyuv/convert.h"
 
 namespace webrtc {
 
 class AndroidVideoTrackSource : public Notifier<VideoTrackSourceInterface> {
  public:
   AndroidVideoTrackSource(rtc::Thread* signaling_thread,
                           JNIEnv* jni,
-                          jobject j_egl_context);
+                          jobject j_egl_context,
+                          bool is_screencast = false);
 
   // Not used on Android.
   // TODO(sakal/magjed): Try to remove this from the interface.
   void Stop() override { RTC_NOTREACHED(); };
   // Not used on Android.
   // TODO(sakal/magjed): Try to remove this from the interface.
   void Restart() override { RTC_NOTREACHED(); }
 
-  // Currently, none of the Android implementations are screencast.
-  bool is_screencast() const override { return false; }
+  bool is_screencast() const override { return is_screencast_; }
 
   // Indicates that the encoder should denoise video before encoding it.
   // If it is not set, the default configuration is used which is different
   // depending on video codec.
   rtc::Optional<bool> needs_denoising() const override {
     return rtc::Optional<bool>(false);
   }
 
   // Returns false if no stats are available, e.g, for a remote
   // source, or a source which has not seen its first frame yet.
@@ skipping 40 matching lines @@
   rtc::Optional<Stats> stats_ GUARDED_BY(stats_crit_);
   SourceState state_;
   rtc::VideoBroadcaster broadcaster_;
   rtc::TimestampAligner timestamp_aligner_;
   cricket::VideoAdapter video_adapter_;
   rtc::CriticalSection apply_rotation_crit_;
   bool apply_rotation_ GUARDED_BY(apply_rotation_crit_);
   webrtc::I420BufferPool pre_scale_pool_;
   webrtc::I420BufferPool post_scale_pool_;
   rtc::scoped_refptr<webrtc_jni::SurfaceTextureHelper> surface_texture_helper_;
+  const bool is_screencast_;
 
   void OnFrame(const cricket::VideoFrame& frame, int width, int height);
 
   void OnSinkWantsChanged(const rtc::VideoSinkWants& wants);
 
   bool AdaptFrame(int width,
                   int height,
                   int64_t camera_time_us,
                   int* out_width,
                   int* out_height,
                   int* crop_width,
                   int* crop_height,
                   int* crop_x,
                   int* crop_y,
                   int64_t* translated_camera_time_us);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_ANDROIDVIDEOTRACKSOURCE_H_