1 /* 2 * Copyright (c) 2012 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 // This file implements a class that can be used for scaling frames. 12 13 #ifndef WEBRTC_MODULES_UTILITY_SOURCE_FRAME_SCALER_H_ 14 #define WEBRTC_MODULES_UTILITY_SOURCE_FRAME_SCALER_H_ 15 16 #ifdef WEBRTC_MODULE_UTILITY_VIDEO 17 18 #include "webrtc/common_video/interface/i420_video_frame.h" 19 #include "webrtc/engine_configurations.h" 20 #include "webrtc/modules/interface/module_common_types.h" 21 #include "webrtc/system_wrappers/interface/scoped_ptr.h" 22 23 namespace webrtc { 24 25 class Scaler; 26 class VideoFrame; 27 28 class FrameScaler { 29 public: 30 FrameScaler(); 31 ~FrameScaler(); 32 33 // Re-sizes |video_frame| so that it has the width |out_width| and height 34 // |out_height|. 35 int ResizeFrameIfNeeded(I420VideoFrame* video_frame, 36 int out_width, 37 int out_height); 38 39 private: 40 scoped_ptr<Scaler> scaler_; 41 I420VideoFrame scaled_frame_; 42 }; 43 44 } // namespace webrtc 45 46 #endif // WEBRTC_MODULE_UTILITY_VIDEO 47 48 #endif // WEBRTC_MODULES_UTILITY_SOURCE_FRAME_SCALER_H_ 49