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 #ifndef WEBRTC_MODULES_VIDEO_PROCESSING_SPATIAL_RESAMPLER_H_
12 #define WEBRTC_MODULES_VIDEO_PROCESSING_SPATIAL_RESAMPLER_H_
13 
14 #include "webrtc/typedefs.h"
15 
16 #include "webrtc/modules/include/module_common_types.h"
17 #include "webrtc/modules/video_processing/include/video_processing_defines.h"
18 
19 #include "webrtc/common_video/libyuv/include/scaler.h"
20 #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
21 
22 namespace webrtc {
23 
24 class VPMSpatialResampler {
25  public:
~VPMSpatialResampler()26   virtual ~VPMSpatialResampler() {}
27   virtual int32_t SetTargetFrameSize(int32_t width, int32_t height) = 0;
28   virtual void SetInputFrameResampleMode(
29       VideoFrameResampling resampling_mode) = 0;
30   virtual void Reset() = 0;
31   virtual int32_t ResampleFrame(const VideoFrame& inFrame,
32                                 VideoFrame* outFrame) = 0;
33   virtual int32_t TargetWidth() = 0;
34   virtual int32_t TargetHeight() = 0;
35   virtual bool ApplyResample(int32_t width, int32_t height) = 0;
36 };
37 
38 class VPMSimpleSpatialResampler : public VPMSpatialResampler {
39  public:
40   VPMSimpleSpatialResampler();
41   ~VPMSimpleSpatialResampler();
42   virtual int32_t SetTargetFrameSize(int32_t width, int32_t height);
43   virtual void SetInputFrameResampleMode(VideoFrameResampling resampling_mode);
44   virtual void Reset();
45   virtual int32_t ResampleFrame(const VideoFrame& inFrame,
46                                 VideoFrame* outFrame);
47   virtual int32_t TargetWidth();
48   virtual int32_t TargetHeight();
49   virtual bool ApplyResample(int32_t width, int32_t height);
50 
51  private:
52   VideoFrameResampling resampling_mode_;
53   int32_t target_width_;
54   int32_t target_height_;
55   Scaler scaler_;
56 };
57 
58 }  // namespace webrtc
59 
60 #endif  // WEBRTC_MODULES_VIDEO_PROCESSING_SPATIAL_RESAMPLER_H_
61