安卓免root虚拟摄像头， 虚拟相机过人脸软件， 虚拟视频替换摄像头【java】

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项目实现了虚拟摄像头替换功能，可以在真实摄像头和虚拟视频源之间切换 使用JavaCV库处理视频流，支持OpenCV图像处理 包含视频循环播放功能，当替换视频结束时自动重新开始 提供简单的图像处理流程，使替换视频看起来更像真实的摄像头画面 Maven配置包含了所有必要的依赖项，包括JavaCV、OpenCV和FFmpeg 项目结构清晰，包含主处理循环和帧处理逻辑 支持动态切换替换视频源，可以在运行时更改替换视频文件

import org.bytedeco.javacv.; import org.bytedeco.opencv.opencv_core.; import org.bytedeco.opencv.opencv_imgproc.; import static org.bytedeco.opencv.global.opencv_core.; import static org.bytedeco.opencv.global.opencv_imgproc.; import static org.bytedeco.opencv.global.opencv_imgcodecs.;

import javax.swing.; import java.awt.; import java.awt.image.BufferedImage; import java.io.File;

public class VirtualCamera { private static final int CAMERA_INDEX = 0; private static final String REPLACEMENT_VIDEO = "replacement.mp4"; private static final int WIDTH = 640; private static final int HEIGHT = 480; private static final double SCALE_FACTOR = 1.0;

private FrameGrabber grabber;
private FrameRecorder recorder;
private FFmpegFrameGrabber videoGrabber;
private CanvasFrame canvas;
private boolean useVirtualCamera = false;

public static void main(String[] args) {
    new VirtualCamera().start();
}

public void start() {
    try {
        // Initialize real camera grabber
        grabber = FrameGrabber.createDefault(CAMERA_INDEX);
        grabber.setImageWidth(WIDTH);
        grabber.setImageHeight(HEIGHT);
        grabber.start();
        
        // Initialize replacement video grabber
        videoGrabber = new FFmpegFrameGrabber(new File(REPLACEMENT_VIDEO));
        videoGrabber.start();
        
        // Create preview window
        canvas = new CanvasFrame("Virtual Camera Preview");
        canvas.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        canvas.setSize(WIDTH, HEIGHT);
        
        // Main processing loop
        while (true) {
            Frame frame = getNextFrame();
            if (frame != null) {
                canvas.showImage(frame);
            }
            Thread.sleep(30); // ~30 FPS
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

private Frame getNextFrame() throws Exception {
    if (useVirtualCamera) {
        return processVirtualFrame();
    } else {
        return grabber.grab();
    }
}

private Frame processVirtualFrame() throws Exception {
    Frame videoFrame = videoGrabber.grab();
    if (videoFrame == null) {
        // Loop the video if ended
        videoGrabber.restart();
        videoFrame = videoGrabber.grab();
    }
    
    // Convert to OpenCV Mat for processing
    OpenCVFrameConverter.ToMat converter = new OpenCVFrameConverter.ToMat();
    Mat mat = converter.convert(videoFrame);
    
    // Apply some processing to make it look more like a webcam
    Mat processed = new Mat();
    cvtColor(mat, processed, COLOR_BGR2RGB);
    resize(processed, processed, new Size(WIDTH, HEIGHT));
    
    // Convert back to Frame
    return converter.convert(processed);
}

public void toggleVirtualCamera() {
    useVirtualCamera = !useVirtualCamera;
}

public void setReplacementVideo(String path) {
    try {
        videoGrabber.stop();
        videoGrabber = new FFmpegFrameGrabber(new File(path));
        videoGrabber.start();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

}

xml version="1.0" encoding="UTF-8"?> 4.0.0

<groupId>com.example</groupId>
<artifactId>virtual-camera</artifactId>
<version>1.0-SNAPSHOT</version>

<properties>
    <maven.compiler.source>11</maven.compiler.source>
    <maven.compiler.target>11</maven.compiler.target>
    <javacpp.version>1.5.6</javacpp.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.bytedeco</groupId>
        <artifactId>javacv-platform</artifactId>
        <version>${javacpp.version}</version>
    </dependency>
    <dependency>
        <groupId>org.bytedeco</groupId>
        <artifactId>opencv-platform</artifactId>
        <version>4.5.1-${javacpp.version}</version>
    </dependency>
    <dependency>
        <groupId>org.bytedeco</groupId>
        <artifactId>ffmpeg-platform</artifactId>
        <version>4.3.2-${javacpp.version}</version>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>exec-maven-plugin</artifactId>
            <version>3.0.0</version>
            <configuration>
                <mainClass>VirtualCamera</mainClass>
            </configuration>
        </plugin>
    </plugins>
</build>