use lua to execute ffmpeg

cmd

function convert2wmv(filename)
	return os.execute('ffmpeg -i \"'..filename..'\" -q:v -vf scale=w=854:h=854:force_original_aspect_ratio=decrease \"'..filename..'.wmv\"')
end

function convert2wma(filename)
	return os.execute('ffmpeg -i \"'..filename..'\" -vn \"'..filename..'.wma\"')
end

function cutvideo(filename)
	io.write("cut from (sec): ")
	from = io.read()
	io.write("to (sec): ")
	to = io.read()
	return os.execute('ffmpeg -i \"'..filename..'\" -q:v 10 -vf scale=w=854:h=854:force_original_aspect_ratio=decrease -ss '..from..' -to '..to..' \"'..filename..'_'..from..'-'..to..'.wmv\"')
end

function cutaudio(filename)
	io.write("cut from (sec): ")
	from = io.read()
	io.write("to (sec): ")
	to = io.read()
	return os.execute('ffmpeg -i \"'..filename..'\" -q:a 10 -vn -ss '..from..' -to '..to..' \"'..filename..'_'..from..'-'..to..'.wma\"')
end

funcname = arg[1]
filename = arg[2]

if not _G[funcname](filename) then io.read() end

-- usage: lua d:\cmd cut2wmv "%1"

function convert2wmv(filename)
return os.execute('ffmpeg -i "'..filename..'" -q:v -vf scale=w=854:h=854:force_original_aspect_ratio=decrease "'..filename..'.wmv"')
end

function convert2wma(filename)
return os.execute('ffmpeg -i "'..filename..'" -vn "'..filename..'.wma"')
end

function cut2wmv(filename)
io.write("cut from (sec): ")
from = io.read()
io.write("to (sec): ")
to = io.read()
return os.execute('ffmpeg -i "'..filename..'" -q:v 10 -vf scale=w=854:h=854:force_original_aspect_ratio=decrease -ss '..from..' -to '..to..' "'..filename..'_'..from..'-'..to..'.wmv"')
end

function cut2wma(filename)
io.write("cut from (sec): ")
from = io.read()
io.write("to (sec): ")
to = io.read()
return os.execute('ffmpeg -i "'..filename..'" -q:a 10 -vn -ss '..from..' -to '..to..' "'..filename..'_'..from..'-'..to..'.wma"')
end

funcname = arg[1]
filename = arg[2]

if not _Gfuncname then io.read() end

-- usage: lua d:\cmd cut2wmv "%1"