[Bio_Hazard]

UPD
Добил обработку видео, осталось добавить аудио

Скрытый текст

Код:

@echo off
color 0A
chcp 65001
setlocal enabledelayedexpansion

SET "FFMPEG_PATH=ffmpeg.exe"

SET "FORMATS=*.mp4 *.avi *.mkv *.mov *.flv *.wmv"

SET "VIDEO_BITRATE=8000k"

:: ultrafast, superfast, veryfast, faster, fast, medium, slow, slower, veryslow, placebo
SET "PRESET=ultrafast"

SET "MAX_SIZE=1920"

if not exist "%FFMPEG_PATH%" (
	echo FFmpeg не найден!
	pause
	exit /b
)

for %%f in (%FORMATS%) do (
	set "input=%%f"
	set "output_temp=%%~nf_temp.mp4"
	set "output_final=%%~nf_converted.mp4"

	for /f "tokens=1,2 delims=x " %%a in ('%ffmpeg_path% -i "%%f" 2^>^&1') do (
		set "width=%%a"
		set "height=%%b"
	)

	if !width! gtr !height! (
		set "scale_width=%MAX_SIZE%"
		set "scale_height=-1"
	) else (
		set "scale_width=-1"
		set "scale_height=%MAX_SIZE%"
	)

	"%FFMPEG_PATH%" -i "!input!" -vf "scale=!scale_width!:!scale_height!" -c:v libx264 -b:v !VIDEO_BITRATE! -c:a copy -preset !PRESET! -pass 1 -an -f mp4 NUL
	"%FFMPEG_PATH%" -i "!input!" -vf "scale=!scale_width!:!scale_height!" -c:v libx264 -b:v !VIDEO_BITRATE! -c:a copy -preset !PRESET! -pass 2 "!output_temp!"

	move /Y "!output_temp!" "!output_final!"
)

endlocal