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動画の断片化。
Video fragmentation.
[ 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; ofImage image; cv::Mat frame; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(0); ofSetLineWidth(2); ofEnableDepthTest(); this->cap.open("D:\\MP4\\MOV_1030.mp4"); this->cap_size = cv::Size(1280, 720); 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); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); cv::Mat src; this->cap >> src; if (src.empty()) { this->cap.set(cv::CAP_PROP_POS_FRAMES, 0); return; } cv::cvtColor(src, src, cv::COLOR_BGR2RGB); cv::resize(src, this->frame, this->cap_size); cv::flip(this->frame, this->frame, 0); this->image.update(); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum()); ofTranslate(-640, -360); int span = 40; vector<ofMesh> mesh_list; for (int x = 0; x < 1280; x += span) { for (int y = 0; y < 720; y += span) { ofMesh mesh; mesh.addVertex(glm::vec3(x, y, 0)); mesh.addVertex(glm::vec3(x + span, y, 0)); mesh.addVertex(glm::vec3(x + span, y + span, 0)); mesh.addVertex(glm::vec3(x, y + span, 0)); mesh.addTexCoord(glm::vec3(x, y, 0)); mesh.addTexCoord(glm::vec3(x + span, y, 0)); mesh.addTexCoord(glm::vec3(x + span, y + span, 0)); mesh.addTexCoord(glm::vec3(x, y + span, 0)); mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(2); mesh.addIndex(0); mesh.addIndex(2); mesh.addIndex(3); mesh_list.push_back(mesh); } } for (auto& mesh : mesh_list) { auto rotate = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360)); auto speed = glm::vec3(ofRandom(5, 10), ofRandom(5, 10), ofRandom(5, 10)); auto center = glm::vec3(mesh.getVertex(0).x + span * 0.5, mesh.getVertex(0).y + span * 0.5, 0); auto tmp_center = center; mesh.setVertex(0, mesh.getVertex(0) - center); mesh.setVertex(1, mesh.getVertex(1) - center); mesh.setVertex(2, mesh.getVertex(2) - center); mesh.setVertex(3, mesh.getVertex(3) - center); auto noise_value = ofNoise(glm::vec4(center * 0.001, ofGetFrameNum() * 0.005)); if (noise_value < 0.48) { tmp_center += glm::vec3(0, 0, -250); rotate = glm::vec3(); } else if (noise_value < 0.52) { tmp_center += glm::vec3(0, 0, ofMap(noise_value, 0.48, 0.52, -250, 250)); rotate.x += ofGetFrameNum() * speed.x; rotate.y += ofGetFrameNum() * speed.y; rotate.z += ofGetFrameNum() * speed.z; } else { tmp_center += glm::vec3(0, 0, 250); rotate = glm::vec3(); } ofPushMatrix(); ofTranslate(tmp_center); ofRotateZ(rotate.z); ofRotateY(rotate.y); ofRotateX(rotate.x); ofSetColor(255); this->image.bind(); mesh.draw(); this->image.unbind(); ofMesh line; line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); if (noise_value > 0.48 && noise_value < 0.52) { line.addVertex(mesh.getVertex(0)); line.addVertex(mesh.getVertex(1)); line.addVertex(mesh.getVertex(2)); line.addVertex(mesh.getVertex(3)); line.addIndex(0); line.addIndex(1); line.addIndex(1); line.addIndex(2); line.addIndex(2); line.addIndex(3); line.addIndex(3); line.addIndex(0); } else { auto top_noise_value = ofNoise(glm::vec4((center + glm::vec3(0, span, 0)) * 0.001, ofGetFrameNum() * 0.005)); if ((top_noise_value > 0.48 && top_noise_value < 0.52 || center.y >= 720 - span * 0.5) ) { line.addVertex(mesh.getVertex(2)); line.addVertex(mesh.getVertex(3)); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2); } auto bottom_noise_value = ofNoise(glm::vec4((center - glm::vec3(0, span, 0)) * 0.001, ofGetFrameNum() * 0.005)); if (bottom_noise_value > 0.48 && bottom_noise_value < 0.52 || center.y <= span * 0.5) { line.addVertex(mesh.getVertex(0)); line.addVertex(mesh.getVertex(1)); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2); } auto right_noise_value = ofNoise(glm::vec4((center + glm::vec3(span, 0, 0)) * 0.001, ofGetFrameNum() * 0.005)); if (right_noise_value > 0.48 && right_noise_value < 0.52 || center.x >= 1280 - span * 0.5) { line.addVertex(mesh.getVertex(1)); line.addVertex(mesh.getVertex(2)); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2); } auto left_noise_value = ofNoise(glm::vec4((center - glm::vec3(span, 0, 0)) * 0.001, ofGetFrameNum() * 0.005)); if (left_noise_value > 0.48 && left_noise_value < 0.52 || center.x <= span * 0.5) { line.addVertex(mesh.getVertex(3)); line.addVertex(mesh.getVertex(0)); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2); } } line.drawWireframe(); ofPopMatrix(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |