@echo off
echo avisource(%1) > %1.avs
echo ((width()%2)!=0) ? spline36resize(Int((width()/2))*2, height()) : last >> %1.avs
echo ((height()%2)!=0) ? spline36resize(width(), Int((height()/2))*2) : last >> %1.avs
echo ConvertToYV12() >> %1.avs
echo (float(width())/height() == (16./9) ^&^& ((width() ^> 1280) ^&^& (height() ^> 720))) ? spline36resize(1280,720) : last >> %1.avs
echo (AudioChannels()!=2) ? audiodub(killaudio(),monotostereo(getchannel(0),getchannel(0))) : last >> %1.avs
echo AVS file written, now encoding audio
echo --
avs2wav -n %1.avs - | neroaacenc -q 0.4 -if - -of %1.aud.mp4
echo --
echo Audio encoded, now encoding video
x264 --preset veryfast --crf 18 --thread-input --output %1.vid.mp4  %1.avs
echo --
echo Video encoded, now muxing to mp4
echo --
mp4box -add %1.vid.mp4 -add %1.aud.mp4 %1.final.mp4
echo --
del %1.vid.mp4
del %1.aud.mp4
del %1.avs
echo Requirements: Avisynth installed, in your PATH (system32/syswow64): x264.exe, neroaacenc.exe, mp4box.exe
@pause