【发布时间】:2020-03-25 18:43:42
【问题描述】:
这是我的打字稿代码:
import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import { FfmpegCommand } from 'fluent-ffmpeg'
async function bootstrap() {
const app = await NestFactory.create(AppModule);
let test
try {
test = new FfmpegCommand('./adventure.mkv');
} catch (error) {
console.log(error);
}
await app.listen(3000);
}
bootstrap();
生成的 Javascript 代码:
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
const core_1 = require("@nestjs/core");
const app_module_1 = require("./app.module");
const fluent_ffmpeg_1 = require("fluent-ffmpeg");
function bootstrap() {
return __awaiter(this, void 0, void 0, function* () {
const app = yield core_1.NestFactory.create(app_module_1.AppModule);
let test;
try {
test = new fluent_ffmpeg_1.FfmpegCommand('./adventure.mkv');
}
catch (error) {
console.log(error);
}
yield app.listen(3000);
});
}
bootstrap();
//# sourceMappingURL=main.js.map
当我运行这个应用程序时,我遇到了下一个错误:
main.ts:12 消息:“fluent_ffmpeg_1.FfmpegCommand 不是构造函数” stack:"TypeError: fluent_ffmpeg_1.FfmpegCommand is not a constructor\n at c:\nest\dist\src\main.js:20:20\n at Generator.next ()\n at fulfilled (c:\nest\dist \src\main.js:5:58)\n 在 process._tickCallback (internal/process/next_tick.js:68:7)\n 在 Function.Module.runMain (internal/modules/cjs/loader.js:834 :11)\n 在启动时 (internal/bootstrap/node.js:283:19)\n 在 bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)"
这是因为这个原始 test = new fluent_ffmpeg_1.FfmpegCommand('./adventure.mkv')。当我在 test = new fluent_ffmpeg_1('./adventure.mkv') 上更改它时,我没有错误。你知道如何解决它。如果您知道打字稿上的 ffmpeg 示例在哪里,请与我分享:)
【问题讨论】:
标签: javascript node.js typescript ffmpeg fluent-ffmpeg