Let ViEEncoder express resolution requests as Sinkwants

webrtc/test/frame_generator_capturer.h

 /*
  *  Copyright (c) 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.
  */
 #ifndef WEBRTC_TEST_FRAME_GENERATOR_CAPTURER_H_
@@ skipping 13 matching lines @@
 
 class CriticalSectionWrapper;
 class EventTimerWrapper;
 
 namespace test {
 
 class FrameGenerator;
 
 class FrameGeneratorCapturer : public VideoCapturer {
  public:
+  class SinkWantsObserver {
+   public:
+    // OnSinkWantsChanged is called when FrameGeneratorCapturer::AddOrUpdateSink
+    // is called.
+    virtual void OnSinkWantsChanged(rtc::VideoSinkInterface<VideoFrame>* sink,
+                                    const rtc::VideoSinkWants& wants) = 0;
+
+   protected:
+    virtual ~SinkWantsObserver() {}
+  };
+
   static FrameGeneratorCapturer* Create(size_t width,
                                         size_t height,
                                         int target_fps,
                                         Clock* clock);
 
   static FrameGeneratorCapturer* CreateFromYuvFile(const std::string& file_name,
                                                    size_t width,
                                                    size_t height,
                                                    int target_fps,
                                                    Clock* clock);
   virtual ~FrameGeneratorCapturer();
 
   void Start() override;
   void Stop() override;
   void ChangeResolution(size_t width, size_t height);
 
+  void SetSinkWantsObserver(SinkWantsObserver* observer);
+
   void AddOrUpdateSink(rtc::VideoSinkInterface<VideoFrame>* sink,
                        const rtc::VideoSinkWants& wants) override;
   void RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink) override;
 
   void ForceFrame();
   void SetFakeRotation(VideoRotation rotation);
 
   int64_t first_frame_capture_time() const { return first_frame_capture_time_; }
 
   FrameGeneratorCapturer(Clock* clock,
                          FrameGenerator* frame_generator,
                          int target_fps);
   bool Init();
 
  private:
   void InsertFrame();
   static bool Run(void* obj);
 
   Clock* const clock_;
   bool sending_;
   rtc::VideoSinkInterface<VideoFrame>* sink_ GUARDED_BY(&lock_);
+  SinkWantsObserver* sink_wants_observer_ GUARDED_BY(&lock_);
 
   std::unique_ptr<EventTimerWrapper> tick_;
   rtc::CriticalSection lock_;
   rtc::PlatformThread thread_;
   std::unique_ptr<FrameGenerator> frame_generator_;
 
   int target_fps_;
   VideoRotation fake_rotation_ = kVideoRotation_0;
 
   int64_t first_frame_capture_time_;
 };
 }  // test
 }  // webrtc
 
 #endif  // WEBRTC_TEST_FRAME_GENERATOR_CAPTURER_H_