On 12.02.2022 04:47, Loken wrote:
> I am a newguard，I want to ask a question.
> 
> 
> I find some bug in ffmpeg 4.4 version, I fix it, How to add bug fix code in old version 4.4

If the bug still exists in master, post the fix here.
If it's fixed on master, find the fix and request a backport. Also here.