encode.py

#!/usr/bin/env python3

from subprocess import call
from os import listdir

class File:
    def __init__(self, path, start, end):
        self.path = path
        self.start = start
        self.end = end

class Encoder:
    def __init__(self, fileobj, bitrate, maxrate, bufsize, threads, keyframe):
        self.fileobj = fileobj
        self.bitrate = bitrate
        self.maxrate = maxrate
        self.bufsize = bufsize
        self.threads = threads
        self.keyframe = keyframe
    def encode(self):
        call(["ffmpeg", "-i", self.fileobj.path, "-ss", str(self.fileobj.start), "-to", str(self.fileobj.end), "-pass", "1", "-b:v", self.bitrate, "-maxrate", self.maxrate, "-bufsize", self.bufsize, "-threads", str(self.threads),
        "-speed", "4", "-g", str(self.keyframe), "-tile-columns", "6", "-frame-parallel", "1", "-auto-alt-ref", "1", "-lag-in-frames", "25", "-an", "-sn", "-c:v", "libvpx-vp9", "-f", "webm", "-y", "/dev/null"])
        call(["ffmpeg", "-i", self.fileobj.path, "-ss", str(self.fileobj.start), "-to", str(self.fileobj.end), "-pass", "2", "-b:v", self.bitrate, "-maxrate", self.maxrate, "-bufsize", self.bufsize, "-threads", str(self.threads),
        "-speed", "1", "-g", str(self.keyframe), "-tile-columns", "6", "-frame-parallel", "1", "-auto-alt-ref", "1", "-lag-in-frames", "25", "-sn", "-c:v", "libvpx-vp9", "-c:a", "libvorbis", "-b:a", "128k", "-f", "webm",
        self.fileobj.path + "-Opening.webm"])

print("Openings Encoder v0.1")
potential_files = []
for file in listdir("."):
    if ".mkv" in file:
        potential_files.append(file)
if len(potential_files) > 0:
    print("We've found the following potential files:")
    for file in potential_files:
        print(file)
else:
    print("There is no file to encode")
    exit()
print("---")
for file in potential_files:
    print("File: " + file)
    thisfile = input("Do you want to encode this file? [Y|n]: ")
    if thisfile == "n":
        continue
    bitrate = input("Which bitrate shall be used? [3000k]: ")
    if not bitrate:
        bitrate = "3000k"
    maxrate = input("What shall be the maxrate? [3500k]: ")
    if not maxrate:
        maxrate = "3500k"
    bufsize = input("What shall be the buffsize? [6000k]: ")
    if not bufsize:
        bufsize = "6000k"
    threads = input("How many threads shall be used? [4]: ")
    if not threads:
        threads = 4
    keyframe = input("What keyframe setting should be used?? [250]: ")
    if not keyframe:
        keyframe = 250
    starttime = ""
    while starttime == "":
        starttime = input("When does the opening begin?: ")
    endtime = ""
    while endtime == "":
        endtime = input("When does the opening ends?: ")
    fileobject = File(file, starttime, endtime)
    print("Press Return to start the encoding")
    encoder = Encoder(fileobject, bitrate, maxrate, bufsize, threads, keyframe)
    encoder.encode()
print("Everything done :3")
print("Have a nyan day :3")