Checks for free space before remux

rem pp.cmd
@echo off

rem FILESIZE = size in bytes of input file
set FILESIZE=%~z2
rem DESTDRV = destination drive volume, (used to check free space)
set DESTDRV=P:
rem DESTPATH = destination path of remuxed file, (no trailing \)
set DESTPATH=%DESTDRV%\model caps

rem Check for enough free space on destination before remux, fail if not
wmic LogicalDisk where "DeviceID='%DESTDRV%' and FreeSpace > %FILESIZE%" get DeviceID 2>&1 | find /i "%DESTDRV%" >nul || exit 1
ffmpeg -i "%~2" -y -c:v copy -c:a copy -bsf:a aac_adtstoasc "%DESTPATH%\%~n2.mp4" && del "%~2"

rem Want to create a site\model directory for the recordings?
rem Comment out the line above and uncomment the two below, (change the drive - obviously).

rem mkdir "%DESTPATH%\%~3" 2>nul
rem ffmpeg -i "%~2" -y -c:v copy -c:a copy -bsf:a aac_adtstoasc "%DESTPATH%\%~3\%~n2.mp4" && del "%~2"

rem '-movflags faststart' not required unless you're going to stream the resultant MP4
rem '&&' indicates following command will only execute if previous was successful
rem '||' indicates following command will only execute if previous command failed

rem Args passed as follows for standalone CTBRec
rem directory=%1
rem file=%2
rem model=%3
rem site=%4
rem unixtime=%5

rem Learn some DOS commands people, it ain't that hard
rem https://www.robvanderwoude.com/batchstart.php
rem https://www.dostips.com/