weebum script

@echo off
set /P input=Input file path:
set /P start=Starting seek position (m:s):
set /P duration=Duration (in seconds):
REM set /P bitRate=Bitrate:
set /P height=Resolution scale (720 etc):
set /P output=Output filename (without extension):
set outputFolder=E:\libraries\Videos\Shadowplay\Planetside 2\webm

set /a bitRate = 24000000/%duration%
REM 23907532 old
REM -y          : overwrite files without asking
REM -i          : input file
REM -c:v        : encoder:video (libvpx for VP8)
REM -b:v        : bitrate:video
REM -threads    : number of threads to use - 0 uses all available
REM -an         : No audio
REM -vf         : video filter (using for scale here)
REM -ss         : Seek position
REM -t          : Duration
REM -pass       : Pass number
REM -quality    : Encoder-specific quality setting
"C:\Program Files (x86)\ffmpeg\bin\ffmpeg" -y -i %input% -c:v libvpx -slices 8 -threads 4 -b:v %bitRate% -an -vf scale=-1:%height% -ss %start% -t %duration% -quality best -pass 1 -f rawvideo NUL
"C:\Program Files (x86)\ffmpeg\bin\ffmpeg" -y -i %input% -c:v libvpx -slices 8 -threads 4 -b:v %bitRate% -an -vf scale=-1:%height% -ss %start% -t %duration% -quality best -pass 2 "%outputFolder%\%output%.webm"
del ffmpeg2pass-0.log > NUL
echo Finished. File is %filesize%KB.