resolution_tracker.h (992B)
1 /* 2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef MODULES_DESKTOP_CAPTURE_RESOLUTION_TRACKER_H_ 12 #define MODULES_DESKTOP_CAPTURE_RESOLUTION_TRACKER_H_ 13 14 #include "modules/desktop_capture/desktop_geometry.h" 15 16 namespace webrtc { 17 18 class ResolutionTracker final { 19 public: 20 // Sets the resolution to `size`. Returns true if a previous size was recorded 21 // and differs from `size`. 22 bool SetResolution(DesktopSize size); 23 24 // Resets to the initial state. 25 void Reset(); 26 27 private: 28 DesktopSize last_size_; 29 bool initialized_ = false; 30 }; 31 32 } // namespace webrtc 33 34 #endif // MODULES_DESKTOP_CAPTURE_RESOLUTION_TRACKER_H_