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1 /* | |
2 * Copyright (c) 2016 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_TOOLS_FRAME_ANALYZER_REFERENCE_LESS_VIDEO_ANALYSIS_LIB_H_ | |
12 #define WEBRTC_TOOLS_FRAME_ANALYZER_REFERENCE_LESS_VIDEO_ANALYSIS_LIB_H_ | |
13 | |
14 #include <string> | |
15 #include <vector> | |
16 | |
17 // Parse the file header to extract height, width and fps | |
18 // for a given video file. | |
19 void get_height_width_fps(int *height, int *width, int *fps, | |
20 const std::string& video_file); | |
21 | |
22 // Returns true if the frame is frozen based on psnr and ssim freezing | |
23 // threshold values. | |
24 bool frozen_frame(std::vector<double> psnr_per_frame, | |
25 std::vector<double> ssim_per_frame, size_t frame); | |
26 | |
27 // Returns the vector of identical cluster of frames that are frozen | |
28 // and appears continuously. | |
29 std::vector<int> find_frame_clusters(const std::vector<double>& psnr_per_frame, | |
30 const std::vector<double>& ssim_per_frame); | |
31 | |
32 // Prints various freezing metrics like identical frames, | |
33 // total unique frames etc. | |
34 void print_freezing_metrics(const std::vector<double>& psnr_per_frame, | |
35 const std::vector<double>& ssim_per_frame); | |
36 | |
37 // Compute the metrics like freezing score based on PSNR and SSIM values for a | |
38 // given video file. | |
39 void compute_metrics(const std::string& video_file_name, | |
40 std::vector<double>* psnr_per_frame, | |
41 std::vector<double>* ssim_per_frame); | |
42 | |
43 // Checks the file extension and return true if it is y4m. | |
44 bool check_file_extension(const std::string& video_file_name); | |
45 | |
46 // Compute freezing score metrics and prints the metrics | |
47 // for a list of video files. | |
48 int run_analysis(const std::string& video_file); | |
49 | |
50 #endif // WEBRTC_TOOLS_FRAME_ANALYZER_REFERENCE_LESS_VIDEO_ANALYSIS_LIB_H_ | |
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