140 lines
4.5 KiB
C++
140 lines
4.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017, Tadas Baltrusaitis all rights reserved.
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//
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// ACADEMIC OR NON-PROFIT ORGANIZATION NONCOMMERCIAL RESEARCH USE ONLY
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//
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// BY USING OR DOWNLOADING THE SOFTWARE, YOU ARE AGREEING TO THE TERMS OF THIS LICENSE AGREEMENT.
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// IF YOU DO NOT AGREE WITH THESE TERMS, YOU MAY NOT USE OR DOWNLOAD THE SOFTWARE.
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//
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// License can be found in OpenFace-license.txt
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//
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// * Any publications arising from the use of this software, including but
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// not limited to academic journal and conference publications, technical
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// reports and manuals, must cite at least one of the following works:
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//
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// OpenFace: an open source facial behavior analysis toolkit
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// Tadas Baltrušaitis, Peter Robinson, and Louis-Philippe Morency
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// in IEEE Winter Conference on Applications of Computer Vision, 2016
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//
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// Rendering of Eyes for Eye-Shape Registration and Gaze Estimation
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// Erroll Wood, Tadas Baltrušaitis, Xucong Zhang, Yusuke Sugano, Peter Robinson, and Andreas Bulling
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// in IEEE International. Conference on Computer Vision (ICCV), 2015
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//
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// Cross-dataset learning and person-speci?c normalisation for automatic Action Unit detection
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// Tadas Baltrušaitis, Marwa Mahmoud, and Peter Robinson
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// in Facial Expression Recognition and Analysis Challenge,
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// IEEE International Conference on Automatic Face and Gesture Recognition, 2015
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//
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// Constrained Local Neural Fields for robust facial landmark detection in the wild.
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// Tadas Baltrušaitis, Peter Robinson, and Louis-Philippe Morency.
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// in IEEE Int. Conference on Computer Vision Workshops, 300 Faces in-the-Wild Challenge, 2013.
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef __SEQUENCE_CAPTURE_h_
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#define __SEQUENCE_CAPTURE_h_
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// System includes
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#include <fstream>
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#include <sstream>
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#include <vector>
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// OpenCV includes
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#include <opencv2/core/core.hpp>
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#include <opencv2/highgui/highgui.hpp>
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namespace Utilities
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{
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//===========================================================================
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/**
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A class for capturing sequences from video, webcam, and image directories
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*/
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class SequenceCapture {
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public:
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// Default constructor
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SequenceCapture() {};
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// Destructor
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~SequenceCapture();
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// Opening based on command line arguments
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bool Open(std::vector<std::string>& arguments);
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// Direct opening
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// Webcam
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bool OpenWebcam(int device_id, int image_width = 640, int image_height = 480, float fx = -1, float fy = -1, float cx = -1, float cy = -1);
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// Image sequence in the directory
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bool OpenImageSequence(std::string directory, float fx = -1, float fy = -1, float cx = -1, float cy = -1);
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// Video file
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bool OpenVideoFile(std::string video_file, float fx = -1, float fy = -1, float cx = -1, float cy = -1);
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bool IsWebcam() { return is_webcam; }
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// Getting the next frame
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cv::Mat GetNextFrame();
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// Getting the most recent grayscale frame (need to call GetNextFrame first)
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cv::Mat_<uchar> GetGrayFrame();
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// Parameters describing the sequence and it's progress
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double GetProgress();
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bool IsOpened();
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int frame_width;
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int frame_height;
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float fx, fy, cx, cy;
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double fps;
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double time_stamp;
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// Name of the video file, image directory, or the webcam
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std::string name;
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// Allows to differentiate if failed because no input specified or if failed to open a specified input
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bool no_input_specified;
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private:
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// Blocking copy and move, as it doesn't make sense to have several readers pointed at the same source, and this would cause issues, especially with webcams
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SequenceCapture & operator= (const SequenceCapture& other);
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SequenceCapture & operator= (const SequenceCapture&& other);
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SequenceCapture(const SequenceCapture&& other);
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SequenceCapture(const SequenceCapture& other);
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// Used for capturing webcam and video
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cv::VideoCapture capture;
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// Storing the latest captures
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cv::Mat latest_frame;
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cv::Mat_<uchar> latest_gray_frame;
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// Keeping track of frame number and the files in the image sequence
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size_t frame_num;
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std::vector<std::string> image_files;
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// Length of video allowing to assess progress
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size_t vid_length;
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// If using a webcam, helps to keep track of time
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int64 start_time;
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// Keeping track if we are opening a video, webcam or image sequence
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bool is_webcam;
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bool is_image_seq;
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void SetCameraIntrinsics(float fx, float fy, float cx, float cy);
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};
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}
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#endif |