开源212点人脸关键点SDK实现抖音实时妆容修改

    repositories {
        ...
        mavenCentral()
        ...
    }

    allprojects {
        repositories {
            ...
            mavenCentral()
            ...
        }
    }

    dependencies {
        ...
        implementation 'com.tengine.android:tenginekit:1.0.5'
        ...
    }

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET"/>

    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>

    com.tenginekit.Face.init(getBaseContext(),
        AndroidConfig.create()
                .setNormalMode()
                .openFunc(AndroidConfig.Func.Detect)
                .openFunc(AndroidConfig.Func.Landmark)
                .setInputImageFormat(AndroidConfig.ImageFormat.RGBA)
                .setInputImageSize(facingGif.getGifWidth(), facingGif.getGifHeight())
                .setOutputImageSize(facingGif.getGifWidth(), facingGif.getGifHeight())
    );

    Path getMouthLandmarks(FaceLandmarkInfo fi){
        Path outPath = new Path();
        outPath.moveTo(fi.landmarks.get(180).X,fi.landmarks.get(180).Y);
        for(int i = 180; i < 189; i++){
            outPath.lineTo(
                    fi.landmarks.get(i).X,
                    fi.landmarks.get(i).Y
            );
        }
        for(int i = 204; i >= 196; i--){
            outPath.lineTo(
                    fi.landmarks.get(i).X,
                    fi.landmarks.get(i).Y
            );
        }

        outPath.close();

        Path inPath = new Path();
        inPath.moveTo(fi.landmarks.get(180).X,fi.landmarks.get(180).Y);

        for(int i = 195; i >= 188; i--){
            inPath.lineTo(
                    fi.landmarks.get(i).X,
                    fi.landmarks.get(i).Y
            );
        }
        for(int i = 204; i <= 211; i++){
            inPath.lineTo(
                    fi.landmarks.get(i).X,
                    fi.landmarks.get(i).Y
            );
        }

        outPath.op(inPath, Path.Op.DIFFERENCE);
        return  outPath;
    }

    public static void drawLipPerfect(Canvas canvas, Path lipPath, int color, int alpha) {
        //most 70% alpha
        if (alpha > 80) {
            alpha = (int) (alpha * 0.9f + 0.5f);
        }

        alpha = (int) (Color.alpha(color) * ((float) alpha / 255)) << 24;
        color = alphaColor(color, alpha);
        final PointF position = new PointF();
        float blur_radius = 5;

        Bitmap mask = createMask(lipPath, color, blur_radius, position);

        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OVER));
        canvas.drawBitmap(mask, position.x, position.y, paint);
    }

    facingGif.setOnFrameAvailable(new GifImageView.OnFrameAvailable() {
        @Override
        public Bitmap onFrameAvailable(Bitmap bitmap) {
            // bitmap RGB_565

            Bitmap out_bitmap = Bitmap.createBitmap(
                    facingGif.getGifWidth(),
                    facingGif.getGifHeight(),
                    Bitmap.Config.ARGB_8888);

            Canvas canvas = new Canvas(out_bitmap);

            canvas.drawBitmap(bitmap, 0, 0, null);
            bitmap.recycle();

            byte[] bytes = bitmap2Bytes(out_bitmap);
            Face.FaceDetect faceDetect = com.tenginekit.Face.detect(bytes);
            if(faceDetect.getFaceCount() > 0){
                faceLandmarks = faceDetect.landmark2d();
                if(faceLandmarks != null){
                    for (int i = 0; i < faceLandmarks.size(); i++) {
                        Path m_p = getMouthLandmarks(faceLandmarks.get(i));
                        LipDraw.drawLipPerfect(canvas, m_p, Color.WHITE, 100);
                    }
                }
            }
            return out_bitmap;
        }
    });