@echo off
set ffmpeg=S:\ffmpeg\bin\
set subt=-sn
set scaleV=720
set namae=%1
set /P ss=Enter start time[sec.mS or HH:MM:SS.mS](leave blank to set min):
set /P to=Enter end time[sec.mS or HH:MM:SS.mS](leave blank to set max):
if defined ss (
  set sst=-ss
)
if defined to (
  set tot=-to
)
if not defined namae (
set /P name=Write path to input file or use dragNDrop:
)
set /P state=This video is (1-dynamic,2-static,3-combined):
if %state% == 1 (
set bv=1500K
set crf=22
set gop=240
)
if %state% == 2 (
set bv=0
set crf=24
set gop=480
)
if %state% == 3 (
set bv=0
set crf=32
set gop=120
)
%ffmpeg%ffmpeg.exe -i %1%name% %subt% -c:v libvpx-vp9 -y -b:v %bv% -qmin 10 -qmax 42 -crf %crf% -threads 4 -frame-parallel 0 -tile-columns 2 -strict -2 -rc_lookahead 25 -lag-in-frames 16 -g %gop% -sc_threshold 40 -auto-alt-ref 1 -arnr_strength 3 -arnr_max_frames 8 -arnr-type centered -c:a libopus -b:a 64K -vf scale=-1:%scaleV% -pix_fmt yuv420p %hsp% -speed 4 -pass 1 %sst% %ss% %tot% %to% -f webm NUL
%ffmpeg%ffmpeg.exe -i %1%name% %subt% -c:v libvpx-vp9 -y -b:v %bv% -qmin 10 -qmax 42 -crf %crf% -threads 4 -frame-parallel 0 -tile-columns 2 -strict -2 -rc_lookahead 25 -lag-in-frames 16 -g %gop% -sc_threshold 40 -auto-alt-ref 1 -arnr_strength 3 -arnr_max_frames 8 -arnr-type centered -c:a libopus -b:a 64K -vf scale=-1:%scaleV% -pix_fmt yuv420p %hsp% -speed 1 -pass 2 %sst% %ss% %tot% %to% -f webm %1%name%.webm
pause
exit /B