Ubuntu Screencasting Script: FFmpeg & VLC & send-notify

#!/usr/bin/python
#/home/clockworkpc/bin/screencast.py

# Released under a GPLv3 Licence by Clockwork PC 2013
# www.clockworkpc.com.au

# You are entitled to the following four freedoms:
# Freedom 0: To run this program for any purpose
# Freedom 1: To study how this program works and change it to make it do what you wish
# Freedom 2: To redistribute copies so you can help your neighbour
# Freedom 3: To distribute copies of your modified version to others

# You will need python-notify and zenity for this to work properly:
# sudo apt-get install python-notify zenity

import os, datetime, pynotify, subprocess

py_notify_title = "Screencast"
py_notify_message = "Video has been merged"

def sendmessage(py_notify_title, py_notify_message):
    pynotify.init("Test")
    notice = pynotify.Notification(py_notify_title, py_notify_message)
    notice.show()
    return

now = datetime.datetime.now()
nowstring = str(now.strftime("%Y-%m-%d_%A_%H:%M:%S"))

# Define folders and files
binFolder = os.getenv("HOME") + "/Videos/Desktop_Recording/" + nowstring + "/"
videoStream = binFolder + "desktop_recording_on_" + nowstring + ".mp4"
audioStream = binFolder + "microphone_input_on_" + nowstring + ".mp3"
mergedVideo = binFolder + "screencast_on_" + nowstring + ".mp4"
durationInfoFile = binFolder + "video_information_file.txt"

# Define how to get video duration and other key information
def getVideoInfo():
    f = open(durationInfoFile, "r")
    for line in f:
        if "Duration" in line:
            global videoInfo
            videoInfo = "Video information: " + line


# Define executable programs
proc1 = "/usr/bin/ffmpeg"
proc2 = "/bin/mkdir"

# Define how to create a title for the video within YouTube's 60-character limit
def videoTitleInput():
    running = True
    while running:
        global videoTitle
        videoTitle = raw_input("Enter the video title: ")
        if len(videoTitle) <= 60:
            print "The video title is " + videoTitle
            running = False
        else:
            print "Not within Youtube's 60-character limit, try again"

# Create datestamped folder
os.system("mkdir " + binFolder)

#Record video stream with FFmpeg
os.system("gnome-terminal --title=Video_Stream -x ffmpeg -f x11grab -r 30 -s 1366x768 -i :0.0 -c:v libx264 -threads 0 " + videoStream)

#Record audio stream with FFmpeg
os.system("gnome-terminal --title=Audio_Stream -x ffmpeg -f alsa -ac 2 -i pulse " + audioStream)

#Capture webcam with VLC
os.system("gnome-terminal --title=VLC_Capture -x cvlc --intf rc v4l2:// :v4l2-dev=/dev/video0 :v4l2-width=320 :v4l2-height=240")

#Rename VLC screencast window, move it to top-right corner, and make it sticky
os.system("sleep 1 && xdotool  search --name " + '"' + "VLC Media Player" + '"' + " windowmove 1046 0 set_window --name " + '"' + "TCG Screencast" + '"' + " windowraise")

#Not sure how to make it visible in all workspaces though, for some reason the command "wmctrl -r <WIN> -b add,sticky" doesn't work with os.system

#Defining what I need in order to open and edit the text file to be used later

convertPrompt = input("""Do you want to merge the streams?
1. Yes
2. No

Please enter your choice: """)

if convertPrompt == 1:
    videoTitleInput()
    os.system("ffmpeg -i " + videoStream + " 2> " + durationInfoFile)
    getVideoInfo()
    os.system("gnome-terminal -x zenity --notification --text=" + '"' + videoInfo + '"')
    subprocess.call([proc1, '-i', videoStream, '-i', audioStream, '-c:v', 'libx264', '-threads', '0','-ss', '00:00:02.0', '-crf', '24', '-s', '640x360', mergedVideo])
    sendmessage(py_notify_title, py_notify_message)
    os.system("google youtube post --verbose --category News " + mergedVideo + " --title " + '"' + videoTitle + '"')
else:
    exitQuestion = input("Are you done? (Press 1) ")
    if exitQuestion == 1:
        exit()
    else:
        exit()

exitQuestionFinal = input("Are you done? (Press 1) ")
if exitQuestionFinal == 1:
    os.system("nautilus " + binFolder)
    exit()
else:
    exit()