[ Video ]
[ About ]
異なるフレームを再生して見比べる。
Playing different frames.
[ Source ]
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#pragma once #include "ofMain.h" #include "opencv2/opencv.hpp" class ofApp : public ofBaseApp { public: void setup(); void update(); void draw(); void keyPressed(int key) {}; void keyReleased(int key) {}; void mouseMoved(int x, int y) {}; void mouseDragged(int x, int y, int button) {}; void mousePressed(int x, int y, int button) {}; void mouseReleased(int x, int y, int button) {}; void windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; ofEasyCam cam; cv::VideoCapture cap; cv::Size cap_size; int number_of_frames; vector<cv::Mat> frame_list; ofImage image; cv::Mat frame; ofMesh mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(255); ofSetLineWidth(3); ofEnableDepthTest(); this->cap.open("D:\\MP4\\Pexels Videos 2441067.mp4"); this->cap_size = cv::Size(128, 72); this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR); this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0); this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT); for (int i = 0; i < this->number_of_frames; i++) { cv::Mat src, tmp; this->cap >> src; if (src.empty()) { continue; } cv::resize(src, tmp, this->cap_size); cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB); this->frame_list.push_back(tmp); } this->mesh.addVertex(glm::vec3(this->cap_size.width * -0.5, this->cap_size.height * -0.5, 0)); this->mesh.addVertex(glm::vec3(this->cap_size.width * 0.5, this->cap_size.height * -0.5, 0)); this->mesh.addVertex(glm::vec3(this->cap_size.width * 0.5, this->cap_size.height * 0.5, 0)); this->mesh.addVertex(glm::vec3(this->cap_size.width * -0.5, this->cap_size.height * 0.5, 0)); this->mesh.addTexCoord(glm::vec3(0, 0, 0)); this->mesh.addTexCoord(glm::vec3(this->cap_size.width, 0, 0)); this->mesh.addTexCoord(glm::vec3(this->cap_size.width, this->cap_size.height, 0)); this->mesh.addTexCoord(glm::vec3(0, this->cap_size.height, 0)); this->mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(2); this->mesh.addIndex(0); mesh.addIndex(2); mesh.addIndex(3); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(180); for (int x = this->cap_size.width * -5; x <= this->cap_size.width * 5; x += this->cap_size.width) { for (int y = this->cap_size.height * -5; y <= this->cap_size.height * 5; y += this->cap_size.height) { auto location = glm::vec3(x, y, 0); int n = int(ofMap(ofNoise(x * 0.5625 * 0.005, y * 0.005, ofGetFrameNum() * 0.0005), 0, 1, 0, this->number_of_frames * 3)) % this->number_of_frames; this->frame_list[n].copyTo(this->frame); this->image.update(); ofPushMatrix(); ofTranslate(location); ofSetColor(255); ofFill(); this->image.bind(); mesh.draw(); this->image.unbind(); ofSetColor(39); ofNoFill(); ofDrawRectangle(this->cap_size.width * -0.5, this->cap_size.height * -0.5, this->cap_size.width, this->cap_size.height); ofPopMatrix(); } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |