最佳实践

input.type = ImageFrame.FrameType.VIDEO;
ImageFrame output = engine.processImage(input);

preview.type = ImageFrame.FrameType.IMAGE;
ImageFrame previewOut = engine.processImage(preview);

full.type = ImageFrame.FrameType.IMAGE;
ImageFrame exportOut = engine.processImage(full);

engine.setSmoothing(0.25f);
engine.setWhitening(0.12f);
engine.setRosiness(0.08f);
engine.setReshape(Reshape.FACE_THIN, 0.15f);
engine.setReshape(Reshape.EYE_SIZE, 0.12f);

ByteBuffer data = ByteBuffer.allocateDirect(width * height * 4);

ImageFrame input = ImageFrame.createWithRGBA(data, width, height, stride);
try {
    input.type = ImageFrame.FrameType.VIDEO;
    ImageFrame output = engine.processImage(input);
    try {
        // 绘制 / 编码 output
    } finally {
        if (output != null) {
            output.release();
        }
    }
} finally {
    if (input != null) {
        input.release();
    }
}

public final class BeautyEngineHolder {
    private static BeautyEngineHolder sInstance;
    private BeautyEffectEngine mEngine;

    public static synchronized BeautyEngineHolder get(Context context) {
        if (sInstance == null) {
            sInstance = new BeautyEngineHolder(context.getApplicationContext());
        }
        return sInstance;
    }

    private BeautyEngineHolder(Context app) {
        BeautyEffectEngine.EngineConfig config = new BeautyEffectEngine.EngineConfig();
        config.appId = "your_app_id";
        config.appKey = "your_app_key";
        mEngine = new BeautyEffectEngine(app, config);
    }

    public BeautyEffectEngine engine() {
        return mEngine;
    }

    public synchronized void release() {
        if (mEngine != null) {
            mEngine.release();
            mEngine = null;
        }
        sInstance = null;
    }
}

executor.execute(() -> {
    input.type = ImageFrame.FrameType.VIDEO;
    ImageFrame output = engine.processImage(input);
    mainHandler.post(() -> callback.onFrame(output));
});

EngineStats stats = engine.getStats();
Log.d(TAG, "fps=" + stats.fps
    + " avgMs=" + stats.avgProcessTimeMs
    + " sessionS=" + stats.sessionTimeS);

@Test
public void processRgbaFrame() {
    BeautyEffectEngine.EngineConfig config = new BeautyEffectEngine.EngineConfig();
    config.appId = "test_app_id";
    config.appKey = "test_app_key";
    BeautyEffectEngine engine = new BeautyEffectEngine(context, config);

    ByteBuffer data = ByteBuffer.allocateDirect(640 * 480 * 4);
    ImageFrame input = ImageFrame.createWithRGBA(data, 640, 480, 640 * 4);
    input.type = ImageFrame.FrameType.IMAGE;
    ImageFrame output = engine.processImage(input);

    assertNotNull(output);
    assertTrue(output.isValid());

    input.release();
    output.release();
    engine.release();
}