drag & drop input parser

stdin.bat

@echo off
setlocal disableDelayedExpansion

set args=%*
set "dragDrop="
set aac=0

setlocal enableDelayedExpansion
set "cmd=!cmdcmdline!"
set "cmd2=!cmd:*%~f0=!"
if "!cmd2!" neq "!cmd!" (
    set dragDrop=1
    set "args=!cmd2:~0,-1! "
    set "args=!args:* =!"
)

echo Into which format shall I encode, Sir?
echo.
echo 1: aac abr
echo 2: mp3 320cbr
echo 3: alac
echo 4: mp3 V0 vbr
echo 5: mp3 160cbr
echo 6: alac to cdrive
echo 7: aac to cdrive (nodelay)
echo 8: aac abr to cdrive (nodelay)
echo 9: mp3 320cbr (nolp)
choice /c 123456789c /n /m "c: cancel"
echo.

if %errorlevel%==10 goto totalend 

if %errorlevel%==8 set aac=8
if %errorlevel%==1 set aac=1

if NOT %aac%==0 (
    echo Which bitrate shall I choose, Sir?
    echo.
    echo 1: 320
    echo 2: 256
    echo 3: 192
    choice /c 123c /n /m "c: cancel"
    echo.
    
    if %errorlevel%==4 goto totalend
)

for %%F in (!args!) do (
    if "!!"=="" endlocal & set "dragDrop=%dragDrop%"

    if %aac%==8 (
        if %errorlevel%==1 (
            ffmpeg -y -i "%%~F" -loglevel quiet -f wav pipe: | qaac --abr 320 -q 2 -i --no-delay -r keep --threading -o "C:\temp\m4a\%%~nF.m4a" -
        ) else if %errorlevel%==2 (
            ffmpeg -y -i "%%~F" -loglevel quiet -f wav pipe: | qaac --abr 256 -q 2 -i --no-delay -r keep --threading -o "C:\temp\m4a\%%~nF.m4a" -
        ) else if %errorlevel%==3 (
            ffmpeg -y -i "%%~F" -loglevel quiet -f wav pipe: | qaac --abr 192 -q 2 -i --no-delay -r keep --threading -o "C:\temp\m4a\%%~nF.m4a" -
        )
    ) else if %aac%==1 (
        if %errorlevel%==1 (
            ffmpeg -y -i "%%~F" -loglevel quiet -ar 44100 -f wav pipe: | qaac --abr 320 -q 2 -i -r keep --threading -o "%%~dpnF.m4a" -
        ) else if %errorlevel%==2 (
            ffmpeg -y -i "%%~F" -loglevel quiet -ar 44100 -f wav pipe: | qaac --abr 256 -q 2 -i -r keep --threading -o "%%~dpnF.m4a" -
        ) else if %errorlevel%==3 (
            ffmpeg -y -i "%%~F" -loglevel quiet -ar 44100 -f wav pipe: | qaac --abr 192 -q 2 -i -r keep --threading -o "%%~dpnF.m4a" -
        )
    ) else if %errorlevel%==2 (
        ffmpeg -y -i "%%~F" -ar 44100 -f wav pipe: | lame -q 2 -V 0 -b 320 --cbr - "%%~dpnF.mp3"
    ) else if %errorlevel%==3 (
        ffmpeg -y -i "%%~F" -c:a alac -sample_fmt s16p -vn "%%~dpnF.m4a"
    ) else if %errorlevel%==4 (
        ffmpeg -y -i "%%~F" -ar 44100 -f wav pipe: | lame -V 0 -b 0 -B 320 --lowpass 20.5 -q 2 - "%%~dpnF.mp3"
    ) else if %errorlevel%==5 (
        ffmpeg -y -i "%%~F" -ar 44100 -f wav pipe: | lame -b 160 --lowpass -1 -q 2 --cbr - "%%~dpnF.mp3"
    ) else if %errorlevel%==6 (
        ffmpeg -y -i "%%~F" -c:a alac -sample_fmt s16p -vn "C:\temp\alac\%%~nF.m4a"
    ) else if %errorlevel%==7 (
        ffmpeg -y -i "%%~F" -loglevel quiet -f wav pipe: | qaac -V127 -q 2 -i --no-delay -r keep --threading -o "C:\temp\m4a\%%~nF.m4a" -
    ) else if %errorlevel%==9 (
        ffmpeg -y -i "%%~F" -ar 44100 -f wav pipe: | lame --resample 44.1 -q 2 -V 0 -b 320 --cbr --lowpass -1 - "%%~dpnF.mp3"
    )
  
    echo.
)

if defined dragDrop (
    exit
)

goto totalend

:totalend