change 30fps mp4 to 25fps subject_001.mp4 is 30fps $ ffmpeg -r 25 -i subject_001.mp4 25fps_subject_001.mp4 相关文章： 2021-07-05 2021-08-04 2022-02-10 2021-09-10 2022-02-10 2021-05-16 2021-12-21