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Animated WebP Support #25608 related issues #24855 #22569 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [x] There is a reference to the original bug report and related work - [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [ ] The feature is well documented and sample code can be built with the project CMake
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
#include <opencv2/highgui.hpp>
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#include <opencv2/imgcodecs.hpp>
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#include <opencv2/imgproc.hpp>
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#include <iostream>
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using namespace cv;
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int main( int argc, const char** argv )
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{
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std::string filename = argc > 1 ? argv[1] : "animated_image.webp";
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//! [write_animation]
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if (argc == 1)
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{
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Animation animation_to_save;
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Mat image(128, 256, CV_8UC4, Scalar(150, 150, 150, 255));
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int duration = 200;
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for (int i = 0; i < 10; ++i) {
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animation_to_save.frames.push_back(image.clone());
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putText(animation_to_save.frames[i], format("Frame %d", i), Point(30, 80), FONT_HERSHEY_SIMPLEX, 1.5, Scalar(255, 100, 0, 255), 2);
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animation_to_save.durations.push_back(duration);
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}
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imwriteanimation("animated_image.webp", animation_to_save, { IMWRITE_WEBP_QUALITY, 100 });
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}
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//! [write_animation]
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//! [init_animation]
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Animation animation;
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//! [init_animation]
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//! [read_animation]
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bool success = imreadanimation(filename, animation);
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if (!success) {
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std::cerr << "Failed to load animation frames\n";
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return -1;
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}
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//! [read_animation]
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//! [show_animation]
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while (true)
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for (size_t i = 0; i < animation.frames.size(); ++i) {
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imshow("Animation", animation.frames[i]);
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int key_code = waitKey(animation.durations[i]); // Delay between frames
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if (key_code == 27)
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exit(0);
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}
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//! [show_animation]
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return 0;
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}
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