VLC player hack to load prev/next files in folder in one keystroke. once assigned to windows right click on video files via regedit, uses pyhook to bind HOME and END keys to load prev and next files in folder. stops and starts vlc processes to achieve this behavior.

vlcwraPy.py

import os
import sys
import pythoncom, pyHook 
import win32api
import subprocess
import ctypes
import threading
from multiprocessing import *
import time

class vlc(object):
    def __init__(self,filepath,vlcp):
        self.fn=filepath
        self.vlcpath=vlcp        
        self.process=None
        self.restart(filepath)
        
    def kill(self):
        p, self.process = self.process, None
        if p is not None and p.poll() is None:
            p.kill() 
            p.wait()
            
    def is_alive(self):
        if self.process is not None and self.process.poll() is  None:
            return True
        else:
            return False
    
    def restart(self,filepath):
        self.kill()
        self.process = subprocess.Popen([self.vlcpath,filepath],close_fds=True)
        self.fn=filepath
                
    def play_next(self):        
        f=self.get_new_file(1)
        self.restart(f)
                
    def play_prev(self):
        
        f=self.get_new_file(-1)
        self.restart(f)      
    
    def get_new_file(self,switch):        
        dirname= os.path.dirname(self.fn)    
        supplist=['.mkv','.flv','.avi','.mpg','.wmv','.ogm','.mp4','.rmvb']        
        files = [os.path.join(dirname,f) for f in os.listdir(dirname) if (os.path.isfile(os.path.join(dirname,f)) and os.path.splitext(f)[-1]in supplist)]
        files.sort()
        #print files
        try: currentindex=files.index(self.fn)
        except: currentindex=0
        i=0
        if switch==1:
            if currentindex<(len(files)-1):i=currentindex+1            
        else:
            if currentindex>0:i=currentindex-1  
        return files[i]    

class vlcThread(threading.Thread):
    def __init__(self,filepath,vlcp,fl):
        threading.Thread.__init__(self)
        self.fn,self.vlcpath,self.flag=filepath,vlcp,fl
        self.daemon=True 
            
    def run(self):
        vlcinstance=vlc(self.fn,self.vlcpath)
        last_alive=time.time()
        while True:            
            time.sleep(0.3)
            if vlcinstance.is_alive(): last_alive=time.time()
            else: 
                print time.time()-last_alive
                if (time.time()-last_alive)>20:
                    sys.exit(0)
                    break
            if(self.flag.value==1):
                vlcinstance.play_next()
                self.flag.value=0
            if(self.flag.value==-1):
                vlcinstance.play_prev()
                self.flag.value=0
                
class hookThread(threading.Thread):
    def __init__(self,flag):
        threading.Thread.__init__(self)
        self.flag=flag
        self.daemon=True       
        
    def kbeventhandler(self,event):    
        if event.Key=='Home' and 'vlc' in event.WindowName.lower():
            self.flag.value =-1
            return False
        if event.Key=='End' and 'vlc' in event.WindowName.lower():
            self.flag.value =1
            return False
        return True
    def run(self):
        hm = pyHook.HookManager()
        hm.KeyDown = self.kbeventhandler
        hm.HookKeyboard()    
        pythoncom.PumpMessages()


def main():
    vlcpath='vlc'
    flag=Value('i')
    flag.value=0
    if os.name=='nt': vlcpath='C:/Program Files (x86)/VideoLAN/VLC/vlc.exe'
    fn='H:\\Anime\\needless\\Needless_[E-D]\\[Exiled-Destiny]_Needless_Ep11v2_(04B16479).mkv'
    if len(sys.argv)>1:
        fn=sys.argv[1] #use argument if available or else use default file    
    t=vlcThread(fn,vlcpath,flag)
    h=hookThread(flag)
    t.start()
    h.start()
    t.join()
    print "bye bye"


    
if __name__ == '__main__':
    main()