121 lines
3.7 KiB
TypeScript
121 lines
3.7 KiB
TypeScript
/**
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* FFmpeg Adapter Factory
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* 自动检测并选择最佳的 FFmpeg 适配器
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*/
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import { LogWrapper } from '@/napcat-core/helper/log';
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import { FFmpegAddonAdapter, getAddonPath } from './ffmpeg-addon-adapter';
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import { existsSync } from 'node:fs';
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import { FFmpegExecAdapter } from './ffmpeg-exec-adapter';
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import type { IFFmpegAdapter } from './ffmpeg-adapter-interface';
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/**
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* FFmpeg 适配器工厂
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*/
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export class FFmpegAdapterFactory {
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private static instance: IFFmpegAdapter | null = null;
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private static initPromise: Promise<IFFmpegAdapter> | null = null;
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/**
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* 初始化并获取最佳的 FFmpeg 适配器
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* @param logger 日志记录器
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* @param ffmpegPath FFmpeg 可执行文件路径(用于 Exec 适配器)
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* @param ffprobePath FFprobe 可执行文件路径(用于 Exec 适配器)
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* @param binaryPath 二进制文件路径(来自 pathWrapper.binaryPath,用于 Addon 适配器)
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*/
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static async getAdapter (
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logger: LogWrapper,
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ffmpegPath: string = 'ffmpeg',
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ffprobePath: string = 'ffprobe',
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binaryPath?: string
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): Promise<IFFmpegAdapter> {
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// 如果已经初始化,直接返回
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if (this.instance) {
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return this.instance;
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}
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// 如果正在初始化,等待初始化完成
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if (this.initPromise) {
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return this.initPromise;
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}
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// 开始初始化
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this.initPromise = this.initialize(logger, ffmpegPath, ffprobePath, binaryPath);
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try {
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this.instance = await this.initPromise;
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return this.instance;
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} finally {
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this.initPromise = null;
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}
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}
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/**
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* 初始化适配器
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*/
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private static async initialize (
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logger: LogWrapper,
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ffmpegPath: string,
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ffprobePath: string,
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binaryPath?: string
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): Promise<IFFmpegAdapter> {
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const useCommandLine = Boolean(process.env['FFMPEG_PATH'] || process.env['FFPROBE_PATH']);
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if (binaryPath && !useCommandLine && existsSync(getAddonPath(binaryPath))) {
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const addonAdapter = new FFmpegAddonAdapter(binaryPath);
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logger.log('[FFmpeg] 检查 Native Addon 可用性...');
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if (await addonAdapter.isAvailable()) {
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logger.log('[FFmpeg] ✓ 使用 Native Addon 适配器');
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return addonAdapter;
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}
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throw new Error('FFmpeg Native Addon 加载失败: ' + getAddonPath(binaryPath));
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}
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const execAdapter = new FFmpegExecAdapter(ffmpegPath, ffprobePath);
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logger.log(`[FFmpeg] 检查命令行工具可用性: ${ffmpegPath}`);
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if (await execAdapter.isAvailable()) {
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logger.log('[FFmpeg] 使用命令行工具适配器 ✓');
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return execAdapter;
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}
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throw new Error('FFmpeg 命令行工具不可用，请检查 ffmpeg 和 ffprobe 路径: ' + ffmpegPath + ', ' + ffprobePath);
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}
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/**
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* 重置适配器(用于测试或重新初始化)
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*/
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static reset (): void {
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this.instance = null;
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this.initPromise = null;
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}
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/**
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* 更新 FFmpeg 路径并重新初始化
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* @param logger 日志记录器
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* @param ffmpegPath FFmpeg 可执行文件路径
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* @param ffprobePath FFprobe 可执行文件路径
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*/
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static async updateFFmpegPath (
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logger: LogWrapper,
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ffmpegPath: string,
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ffprobePath: string
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): Promise<IFFmpegAdapter> {
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const adapter = new FFmpegExecAdapter(ffmpegPath, ffprobePath);
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if (!await adapter.isAvailable()) {
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throw new Error('FFmpeg 路径不可用: ' + ffmpegPath + ', ' + ffprobePath);
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}
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this.instance = adapter;
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logger.log('[FFmpeg] 已更新命令行工具路径:', ffmpegPath, ffprobePath);
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return adapter;
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}
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/**
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* 获取当前适配器(不初始化)
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*/
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static getCurrentAdapter (): IFFmpegAdapter | null {
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return this.instance;
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}
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}
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