import argparse

import subprocess

from os.path import basename

from os.path import splitext

import re

import glob

parser = argparse.ArgumentParser(description='Transcode an MP4 file to multiple ABR-aligned MP4 files (AVC/AAC)')

parser.add_argument('inputfile')

parser.add_argument('--outdir', default='./', help="directory for the generated files. Default is current working directory.")

parser.add_argument('--framerate', default=30, help="framerate of input file. Default to 30")

args = parser.parse_args()

ladder = [

]

ffmpeg = "ffmpeg -y -i /media/%s " % args.inputfile

for p in ladder:

outputfile = "/media/%s-%s.mp4" % (splitext(args.inputfile)[0], p[2])

ffmpeg = ffmpeg + "-pix_fmt yuv420p -r %s -c:v libx264 -sc_threshold 0 -profile:v main -bf 1 -refs 3 -vf scale=w=%s:h=%s -b:v %sk -maxrate %sk -bufsize %sk -keyint_min %s -g %s -strict experimental -acodec aac -b:a 96k -f mp4 %s " % (args.framerate, p[0], p[1], p[2], p[2], p[2], args.framerate, (args.framerate * 2), outputfile)

print ffmpeg

p1 = subprocess.Popen(ffmpeg.split())

output,err = p1.communicate()