Embed a cover art image to a .mp3 file using ffmpeg

cover.bat

@echo off
setlocal enabledelayedexpansion

REM :: Create an output directory so we don't overwrite original files
mkdir "output" 2>nul

:: Loop through all .mp3 files in the current directory
for %%F in (*.mp3) do (
    set "filename=%%~nF"
    
    :: Check if a corresponding .jpg exists
    if exist "!filename!.jpg" (
        echo Processing: "!filename!.mp3" with "!filename!.jpg"
        
        :: Run FFmpeg to embed the cover art
        ffmpeg -y -i "%%F" -i "!filename!.jpg" -c copy -map 0:a -map 1:v -id3v2_version 3 -metadata:s:v title="Album cover" -metadata:s:v comment="Cover (front)" "output\%%F"
    ) else (
        echo Warning: No matching .jpg found for "%%F"
    )
)

echo Done! Check the 'output' folder.