misskey/packages/backend/src/services/drive/generate-video-thumbnail.ts
MeiMei 1d8ec102f1
fix: GenerateVideoThumbnail (#8825)
* fix: GenerateVideoThumbnail

* CHANGELOG

* fix cleanup

* Revert "fix cleanup"

This reverts commit d54cf8262ac01a3deb6b8dd7689ec144d4d09ea8.
2022-06-14 23:02:14 +09:00

30 lines
758 B
TypeScript

import * as fs from 'node:fs';
import { createTempDir } from '@/misc/create-temp.js';
import { IImage, convertToJpeg } from './image-processor.js';
import FFmpeg from 'fluent-ffmpeg';
export async function GenerateVideoThumbnail(source: string): Promise<IImage> {
const [dir, cleanup] = await createTempDir();
try {
await new Promise((res, rej) => {
FFmpeg({
source,
})
.on('end', res)
.on('error', rej)
.screenshot({
folder: dir,
filename: 'out.png', // must have .png extension
count: 1,
timestamps: ['5%'],
});
});
// JPEGに変換 (Webpでもいいが、MastodonはWebpをサポートせず表示できなくなる)
return await convertToJpeg(`${dir}/out.png`, 498, 280);
} finally {
cleanup();
}
}