[FFmpeg-user] The newest ffmpeg split video very slowly with async 2 or 1

[Carl Eugen Hoyos]

Tony Song <ssaoying <at> gmail.com> writes:

> # ffmpeg -y -ss 00:01:00.00 -t 00:01:00.00 -i /data/test.mkv -vcodec
> libx264 -async 2 -f mpegts /data/test.ts

Does it work without -async 2 ?
(What is -async 2 supposed to do?)

Carl Eugen