Es++ Sample: VideoCapture |
/****************************************************************************** * * Copyright (c) 2017 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer. * * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * VideoCaptureView.cpp * *****************************************************************************/ // #include <es++/gtkmm-3.0/Application.h> #include <es++/gtkmm-3.0/FileOpenDialog.h> #include <es++/opencv-4.0/OpenCVVideoCaptureView.h> #include <es++/opencv-4.0/OpenCVScrolledImageView.h> using namespace Gtk; namespace Es { class MainView :public Es::OpenCVVideoCaptureView { private: Es::OpenCVScrolledImageView image_view; int scaling_ratio; public: ////////////////////////////////////////////// //Constructor // MainView(Es::Application& applet, std::string& name, Es::Args& args) :OpenCVVideoCaptureView(applet, name, args) ,scaling_ratio(100) { int w = (int)args.get(XmNwidth); int h = (int)args.get(XmNheight); if(args.has(XmNscalingRatio)) { scaling_ratio = (int)args.get(XmNscalingRatio); } Es::MainLayout& main_layout = get_main_layout(); main_layout.pack_start(image_view); show_all(); } virtual bool render() { try { cv::Mat frame; if (read_video_frame(frame)) { image_view.scaleImage(frame, scaling_ratio); } } catch (...) { //Ignore } return true; } }; } int main(int argc, char** argv) { Es::Environment env; try { std::string name = argv[0]; Es::Application applet(argc, argv); Es::Args args; args.set(XmNx, 20); args.set(XmNy, 40); args.set(XmNwidth, 640); args.set(XmNheight, 480); args.set(XmNscalingRatio, 80); args.set(XmNvideoDeviceIndex, 0); //video device index args.set(XmNcaptureAutoStart, true); Es::MainView mainv(applet, name, args); mainv.show(); applet.run(mainv); } catch (Es::Exception& ex) { caught(ex); } catch (...) { printf("Get exception \n"); } return 0; }