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??JavaCV??????????

?????

???JavaCV??????????????????????????????????????JavaCV?????????????JAR???????????IDEA?Eclipse???????????????????????????????????

???????

?????????JavaCV?????????????

????????????JavaCV????

import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.Java2DFrameConverter;

2. ????????

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public static final String VIDEO_PATH = "path/to/your/video.mp4";

3. ???????

??FFmpegFrameGrabber?????????????????????

public class VideoFrameGrabber {
    public static void grabFrames(String videoPath, String outputDir, String fileName, int frameRate) throws IOException {
        FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(videoPath);
        grabber.start();
        
        for (int i = 0; i < frameRate; i++) {
            Frame frame = grabber.grabImage();
            if (frame == null) continue;
            
            // ??????
            saveFrame(frame, outputDir, fileName, i);
        }
        
        grabber.stop();
    }
    
    private static void saveFrame(Frame frame, String outputDir, String fileName, int index) {
        Java2DFrameConverter converter = new Java2DFrameConverter();
        BufferedImage image = converter.getBufferedImage(frame);
        
        String filePath = outputDir + File.separator + fileName + "_" + index + ".jpg";
        File output = new File(filePath);
        
        try {
            ImageIO.write(image, "jpg", output);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

4. ??????

???????????????

public static void main(String[] args) throws IOException {
    VideoFrameGrabber.grabFrames(VIDEO_PATH, "output/", "video", 30);
}

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• ???????????????????FFmpeg???????MP4?AVI??
• ????????????????????????????
• ????????????????????????????

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