doc: update ffmpeg.md (#24)

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jaywcjlove 2022-11-07 19:52:29 +08:00
parent e48fd74c38
commit 5f19d3feee

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@ -516,6 +516,7 @@ $ ffmpeg -f concat -i mylist.txt -c copy output.mp4
```bash
$ ffmpeg -f concat -safe 0 -i <(for f in ./*.mp4; do echo "file '$PWD/$f'"; done) -c copy output.mp4
```
<!--rehype:className=wrap-text -->
合并不同规格视频,保证视频不变形