-
Notifications
You must be signed in to change notification settings - Fork 261
/
CVStabilization.h
137 lines (109 loc) · 4.36 KB
/
CVStabilization.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
/**
* @file
* @brief Header file for CVStabilization class
* @author Jonathan Thomas <jonathan@openshot.org>
*
* @ref License
*/
/* LICENSE
*
* Copyright (c) 2008-2019 OpenShot Studios, LLC
* <http://www.openshotstudios.com/>. This file is part of
* OpenShot Library (libopenshot), an open-source project dedicated to
* delivering high quality video editing and animation solutions to the
* world. For more information visit <http://www.openshot.org/>.
*
* OpenShot Library (libopenshot) is free software: you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* OpenShot Library (libopenshot) is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPENSHOT_STABILIZATION_H
#define OPENSHOT_STABILIZATION_H
#include <google/protobuf/util/time_util.h>
#define int64 opencv_broken_int
#define uint64 opencv_broken_uint
#include <opencv2/opencv.hpp>
#include <opencv2/core.hpp>
#undef uint64
#undef int64
#include <cmath>
#include "stabilizedata.pb.h"
#include "ProcessingController.h"
#include "Clip.h"
#include "Json.h"
using namespace std;
using google::protobuf::util::TimeUtil;
struct TransformParam
{
TransformParam() {}
TransformParam(double _dx, double _dy, double _da) {
dx = _dx;
dy = _dy;
da = _da;
}
double dx;
double dy;
double da; // angle
};
struct CamTrajectory
{
CamTrajectory() {}
CamTrajectory(double _x, double _y, double _a) {
x = _x;
y = _y;
a = _a;
}
double x;
double y;
double a; // angle
};
class CVStabilization {
private:
int smoothingWindow; // In frames. The larger the more stable the video, but less reactive to sudden panning
size_t start;
size_t end;
double avr_dx, avr_dy, avr_da, max_dx, max_dy, max_da;
cv::Mat last_T;
cv::Mat prev_grey;
std::vector <TransformParam> prev_to_cur_transform; // Previous to current
std::string protobuf_data_path;
uint progress;
/// Will handle a Thread safely comutication between ClipProcessingJobs and the processing effect classes
ProcessingController *processingController;
// Track current frame features and find the relative transformation
bool TrackFrameFeatures(cv::Mat frame, size_t frameNum);
std::vector<CamTrajectory> ComputeFramesTrajectory();
std::map<size_t,CamTrajectory> SmoothTrajectory(std::vector <CamTrajectory> &trajectory);
// Generate new transformations parameters for each frame to follow the smoothed trajectory
std::map<size_t,TransformParam> GenNewCamPosition(std::map <size_t,CamTrajectory> &smoothed_trajectory);
public:
std::map <size_t,CamTrajectory> trajectoryData; // Save camera trajectory data
std::map <size_t,TransformParam> transformationData; // Save transormation data
// Set default smoothing window value to compute stabilization
CVStabilization(std::string processInfoJson, ProcessingController &processingController);
// Process clip and store necessary stabilization data
void stabilizeClip(openshot::Clip& video, size_t _start=0, size_t _end=0, bool process_interval=false);
/// Protobuf Save and Load methods
// Save stabilization data to protobuf file
bool SaveStabilizedData();
// Add frame stabilization data into protobuf message
void AddFrameDataToProto(libopenshotstabilize::Frame* pbFrameData, CamTrajectory& trajData, TransformParam& transData, size_t frame_number);
// Return requested struct info for a given frame
TransformParam GetTransformParamData(size_t frameId);
CamTrajectory GetCamTrajectoryTrackedData(size_t frameId);
/// Get and Set JSON methods
void SetJson(const std::string value); ///< Load JSON string into this object
void SetJsonValue(const Json::Value root); ///< Load Json::Value into this object
// Load protobuf data file (ONLY FOR MAKE TEST)
bool _LoadStabilizedData();
};
#endif