import com.orange.playerlibrary.ocr.LanguagePackManager;

// 创建管理器
LanguagePackManager manager = new LanguagePackManager(context);

// 检查语言包是否已安装
if (manager.isLanguageInstalled("chi_sim")) {
    // 已安装简体中文
    startOcr();
} else {
    // 下载语言包
    downloadLanguagePack();
}

// 下载语言包
private void downloadLanguagePack() {
    ProgressDialog dialog = new ProgressDialog(this);
    dialog.setTitle("下载语言包");
    dialog.setMessage("正在下载简体中文语言包...");
    dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
    dialog.setMax(100);
    dialog.show();
    
    manager.downloadLanguage("chi_sim", new LanguagePackManager.DownloadCallback() {
        @Override
        public void onProgress(int progress, long downloaded, long total) {
            dialog.setProgress(progress);
            String text = String.format("下载中... %d%% (%s / %s)",
                progress,
                formatFileSize(downloaded),
                formatFileSize(total));
            dialog.setMessage(text);
        }
        
        @Override
        public void onSuccess() {
            dialog.dismiss();
            Toast.makeText(MainActivity.this, "下载成功", Toast.LENGTH_SHORT).show();
            startOcr();
        }
        
        @Override
        public void onError(String error) {
            dialog.dismiss();
            Toast.makeText(MainActivity.this, "下载失败：" + error, Toast.LENGTH_LONG).show();
        }
    });
}

// 格式化文件大小
private String formatFileSize(long bytes) {
    if (bytes < 1024) return bytes + " B";
    if (bytes < 1024 * 1024) return String.format("%.2f KB", bytes / 1024.0);
    return String.format("%.2f MB", bytes / (1024.0 * 1024.0));
}

List<String> installed = manager.getInstalledLanguages();
for (String langCode : installed) {
    String displayName = LanguagePackManager.getLanguageDisplayName(langCode);
    Log.d(TAG, "已安装：" + displayName + " (" + langCode + ")");
}

new AlertDialog.Builder(this)
    .setTitle("删除语言包")
    .setMessage("确定要删除简体中文语言包吗？")
    .setPositiveButton("删除", (dialog, which) -> {
        if (manager.deleteLanguage("chi_sim")) {
            Toast.makeText(this, "删除成功", Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(this, "删除失败", Toast.LENGTH_SHORT).show();
        }
    })
    .setNegativeButton("取消", null)
    .show();

import com.orange.playerlibrary.ocr.OcrAvailabilityChecker;

if (OcrAvailabilityChecker.isOcrTranslateAvailable()) {
    // OCR 功能可用
    startOcrTranslate();
} else {
    // 显示缺少的依赖
    String message = OcrAvailabilityChecker.getMissingDependenciesMessage();
    new AlertDialog.Builder(this)
        .setTitle("OCR 功能不可用")
        .setMessage(message)
        .setPositiveButton("查看文档", (dialog, which) -> {
            // 打开文档链接
            Intent intent = new Intent(Intent.ACTION_VIEW);
            intent.setData(Uri.parse("https://github.com/706412584/orangeplayer/blob/main/docs/OCR_GUIDE.md"));
            startActivity(intent);
        })
        .show();
}

// 用户操作流程：
// 1. 点击字幕按钮
// 2. 选择 "OCR 翻译字幕"
// 3. 设置识别区域（拖动调整）
// 4. 选择源语言和目标语言
// 5. 点击开始识别

import com.orange.playerlibrary.VideoEventManager;

VideoEventManager eventManager = videoView.getVideoController().getVideoEventManager();
if (eventManager != null) {
    // 检查语言包
    LanguagePackManager manager = new LanguagePackManager(this);
    if (!manager.isLanguageInstalled("chi_sim")) {
        // 下载语言包
        downloadLanguagePack();
    } else {
        // 启动 OCR
        eventManager.startOcrTranslate();
    }
}

// 通过 UI 设置（推荐）
// 用户可以拖动调整识别区域的位置和大小

// 或通过代码设置
// eventManager.setOcrRegion(left, top, right, bottom);

// 源语言（视频字幕的语言）
String[] sourceLangs = {"简体中文", "英语", "日语", "韩语"};
String[] sourceCodes = {"chi_sim", "eng", "jpn", "kor"};

// 目标语言（翻译成的语言）
String[] targetLangs = {"简体中文", "英语", "日语", "韩语"};
String[] targetCodes = {"zh", "en", "ja", "ko"};

// 通过 UI 选择（推荐）
// 用户可以在设置界面选择源语言和目标语言