適当x265

@echo off
set avs4x26x="C:\enc\avs4x26x-x64.exe"
set x265="C:\enc\x265.exe"
set muxer="C:\enc\muxer.exe"

for /f "delims=" %%i in ('type list.txt') do call :sub %%i
pause
exit /b

:sub
set "x265_option=%~2"
for %%i in ("%~1\*.avs") do (
    %avs4x26x% --x26x-binary %x265% %x265_option% -o "%%~dpni.h265" "%%~i"
    %muxer% -i "%%~dpni.h265" -o "%%~dpni.mp4"
)
exit /b

list.txtの中身
"C:\enc\avs_folder1" "--tune ssim --ssim --crf 23 --preset veryfast"
"C:\enc\avs_folder2" "--tune ssim --ssim --crf 23 --preset medium"