Share a Video Compression Script

@echo off
chcp 65001 >nul
cd /d "%~dp0"

set "outdir=compressed_%RANDOM%"
mkdir "%outdir%"

echo current folder：%cd%
echo file will saved in：%outdir%
echo processing all mp4 file...
echo.

for %%f in (*.mp4) do (
    echo processing: %%f
    ffmpeg -i "%%f" -vf "scale=-2:320" -c:v libx264 -crf 28 -preset slow -c:a aac -b:a 64k -movflags +faststart "%outdir%\%%~nf_new%%~xf"
    echo.
)

echo.
echo all done！
echo file saved in：%outdir%
pause

Create a Notepad file, paste the content above into it, then save the file with a .bat extension. Place this batch file in your media folder and double-click to run it. Videos will be compressed to 320p (parameters can be adjusted manually). Actual test result: a 1-minute video takes up roughly 1 to 2 megabytes of storage.