错误处理

public final class ErrorCode {
  public static final int SUCCESS = 0;
  public static final int INVALID_ARGUMENT = -1;
  public static final int NOT_INITIALIZED = -2;
  public static final int LICENSE = -3;
  public static final int UNSUPPORTED = -4;
  public static final int IO = -5;
  public static final int NO_SLOT = -6;
  public static final int PROCESS = -7;
  public static final int OUT_OF_MEMORY = -8;
}

int ret = engine.setSmoothing(0.5f);
if (ret != ErrorCode.SUCCESS) {
    Log.e(TAG, "setSmoothing 失败: " + ret);
}

BeautyEffectEngine.EngineConfig config = new BeautyEffectEngine.EngineConfig();
config.appId = "your_app_id";
config.appKey = "your_app_key";
// config.licenseToken = "...";

BeautyEffectEngine engine;
try {
    engine = new BeautyEffectEngine(this, config);
} catch (IllegalArgumentException e) {
    Log.e(TAG, "EngineConfig 无效", e);
    return;
}

EngineCallbacks callbacks = new EngineCallbacks();
callbacks.onEngineEvent = (code, message) -> {
    if (code == EngineEventCode.LICENSE_VALIDATION_FAILED
        || code == EngineEventCode.INITIALIZATION_FAILED) {
        Log.e(TAG, "引擎事件 " + code + ": " + message);
    }
};
engine.setCallbacks(callbacks);

if (input == null || !input.isValid()) {
    Log.e(TAG, "输入帧无效");
    return null;
}
if (input.type == null) {
    input.type = ImageFrame.FrameType.VIDEO;
}

ImageFrame output;
try {
    output = engine.processImage(input);
} catch (IllegalArgumentException e) {
    Log.e(TAG, "processImage 拒绝了该帧", e);
    return null;
}
if (output == null) {
    Log.e(TAG, "processImage 返回 null（引擎已释放或原生失败）");
    return null;
}

ImageFrame output = null;
try {
    input.type = ImageFrame.FrameType.VIDEO;
    output = engine.processImage(input);
    return output;
} finally {
    if (input != null) {
        input.release();
    }
}

int ret = engine.setFilter(fbdPath);
if (ret == ErrorCode.INVALID_ARGUMENT) {
    Log.e(TAG, "滤镜路径为空");
} else if (ret == ErrorCode.IO) {
    Log.e(TAG, "无法读取 .fbd: " + fbdPath);
} else if (ret != ErrorCode.SUCCESS) {
    Log.e(TAG, "setFilter: " + ret);
}

File logFile = new File(getFilesDir(), "facebetter.log");
File parent = logFile.getParentFile();
if (parent != null && !parent.exists() && !parent.mkdirs()) {
    Log.e(TAG, "无法创建日志目录");
    return;
}
BeautyEffectEngine.LogConfig logConfig = new BeautyEffectEngine.LogConfig();
logConfig.consoleEnabled = true;
logConfig.fileEnabled = true;
logConfig.level = BeautyEffectEngine.LogLevel.DEBUG;
logConfig.fileName = logFile.getAbsolutePath();
BeautyEffectEngine.setLogConfig(logConfig);

EngineStats stats = engine.getStats();
if (stats.avgProcessTimeMs > 33) {
    Log.w(TAG, "管线偏慢: " + stats.avgProcessTimeMs + " ms, fps=" + stats.fps);
}