[other] ffmpeg 压缩图片

cmd>ffmpeg -i input.jpg output.jpg

遍历压缩当前路径下的jpg图片到output dir下

@echo off
setlocal enabledelayedexpansion
for  %%x in (*.jpg) do (
    if not "%%x"=="demo.bat" (
     ffmpeg -i %%x ./output/%%x
)
)
pause