视频:ffmpeg -i input.avi -vf scale=320:240 output.avi 图片: ffmpeg -i input.jpg -vf scale=320:240 output_320x240.png 相关文章: 2021-09-24 2022-12-23 2022-12-23 2022-01-22 2022-12-23 2021-03-30 2021-07-11 2022-12-23