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下载地址：https://www.pan38.com/dow/share.php?code=JCnzE 提取密码：8868
代码说明：
核心视频处理模块使用JavaCV实现视频捕获、特效处理和虚拟设备输出
Xposed模块通过Hook微信摄像头相关方法实现视频流替换
包含完整的Android构建配置和NDK本地代码支持
视频处理管道支持自定义滤镜算法扩展
项目配置包含JavaCV和OpenCV的Maven依赖
源码部分：

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

public class VirtualCameraDemo {
private static final int WIDTH = 1280;
private static final int HEIGHT = 720;

public static void main(String[] args) throws Exception {
    // 视频源配置
    FFmpegFrameGrabber grabber = new FFmpegFrameGrabber("input.mp4");
    grabber.setImageWidth(WIDTH);
    grabber.setImageHeight(HEIGHT);
    grabber.start();

    // 虚拟摄像头输出配置
    FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(
        "video=VirtualCam", WIDTH, HEIGHT);
    recorder.setFormat("dshow");
    recorder.setFrameRate(30);
    recorder.start();

    // 视频处理管道
    OpenCVFrameConverter.ToMat converter = new OpenCVFrameConverter.ToMat();
    while (true) {
        Frame frame = grabber.grab();
        if (frame == null) break;

        // 视频特效处理
        Mat mat = converter.convert(frame);
        Mat processed = applyEffects(mat);

        // 输出到虚拟设备
        recorder.record(converter.convert(processed));
        Thread.sleep(33); // 30fps
    }
    grabber.close();
    recorder.close();
}

private static Mat applyEffects(Mat src) {
    Mat dst = new Mat();
    // 添加灰度+边缘检测特效
    cvtColor(src, dst, COLOR_BGR2GRAY);
    Canny(dst, dst, 50, 150);
    return dst;
}

}

package com.virtual.plugin;
import de.robv.android.xposed.;
import de.robv.android.xposed.callbacks.;

public class MainModule implements IXposedHookLoadPackage {
private static final String TARGET_PKG = "com.tencent.mm";

@Override
public void handleLoadPackage(XC_LoadPackage.LoadPackageParam lpparam) {
    if (!lpparam.packageName.equals(TARGET_PKG)) return;

    // Hook摄像头开启方法
    XposedHelpers.findAndHookMethod(
        "com.tencent.mm.plugin.mmsight.api.MMSightCamera",
        lpparam.classLoader,
        "openCamera",
        int.class,
        new XC_MethodHook() {
            @Override
            protected void beforeHookedMethod(MethodHookParam param) {
                param.args[0] = 9999; // 替换为虚拟摄像头ID
            }
        });

    // Hook视频帧处理方法
    XposedHelpers.findAndHookMethod(
        "com.tencent.mm.plugin.mmsight.model.a.d",
        lpparam.classLoader,
        "processFrame",
        byte[].class, int.class, int.class,
        new XC_MethodHook() {
            @Override
            protected void beforeHookedMethod(MethodHookParam param) {
                byte[] frame = (byte[]) param.args[0];
                param.args[0] = processVirtualFrame(frame);
            }
        });
}

private native byte[] processVirtualFrame(byte[] input);

static {
    System.loadLibrary("virtualcam");
}

}

{
compileSdkVersion 34
buildToolsVersion "34.0.0"

defaultConfig {
    minSdkVersion 24
    targetSdkVersion 34
    versionCode 1
    versionName "1.0"

    externalNativeBuild {
        cmake {
            cppFlags "-std=c++17"
            abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
        }
    }
}

externalNativeBuild {
    cmake {
        path "src/main/cpp/CMakeLists.txt"
    }
}

}

dependencies {
compileOnly 'de.robv.android.xposed:api:82'
implementation 'org.bytedeco:javacv:1.5.7'
implementation group: 'org.bytedeco', name: 'opencv', version: '4.5.5-1.5.7'
}