initial
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[pfad]
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lokal = ./slideshow
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remote = https://wolke.netzbegruenung.de/s/CE7CASzEeGF4px2/download
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[bilder]
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dauer = 5
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[filme]
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[debug]
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preview = 1
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#! /bin/python3
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# import VLC module used for playback of files
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import vlc
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# TKinter is used to preapre the GUI window
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import tkinter as tk
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# import sys, shutil and osutil for file system access
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import sys
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import shutil
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import os
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# imporrt the standard to read and write config files
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import configparser
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# threading is used during playback
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from threading import Thread, Event
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# operator is used to sort the files
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import operator
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# when we download new media from "remote" it will be a zip file
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import zipfile
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# used for downloading the fles from remote
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import requests
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# below lines for develepment only
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# When DEBUG_PREVIEW is set to True, then te dislay will only cover
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# the lower right quarter of the screen
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DEBUG_PREVIEW = False
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# below variabels are fr configuration purposes
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# they are usually overwritten from the config file
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bild_dauer = 10
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localPath = "./slideshow"
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remoteURL = None
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localPathExists = False
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# below file extensions are accepted for images
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image_extensions = ['png', 'jpg']
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#below file extensions are accepted for videos
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movie_extensions = ['mov', 'mp4', 'm4v']
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#start update with 2nd media - but only once
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update=2
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def readConfig(configFile=None):
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global bild_dauer, DEBUG_PREVIEW, localPath, remoteURL, localPathExists
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needsWrite = False
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pathToMe = os.path.realpath(sys.argv[0])
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if configFile == None:
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configFile = pathToMe.replace(".py", ".conf")
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config = configparser.ConfigParser()
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config.read(configFile)
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try:
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bild_dauer = int(config.get('bilder', 'dauer'))
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except:
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config.set('bilder', 'dauer', "10")
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needsWrite = True
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try:
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val = config.get('debug', 'preview')
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except:
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val = "0"
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if val == "1":
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DEBUG_PREVIEW = True
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try:
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localPath = os.path.realpath(config.get('pfad', 'lokal'))
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except:
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localPath = os.path.realpath(os.path.dirname(pathToMe) + os.sep + "slideshow")
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config.set('pfad', 'lokal', localPath)
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needsWrite = True
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localPathExists = os.path.exists(localPath)
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#try to read the remote URL, if not given, work offline
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try:
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remoteURL = config.get('pfad', 'remote')
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except:
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remoteURL = None
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if needsWrite == True:
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with open(configFile, 'w') as file:
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config.write(file)
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class RemoteData:
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def __init__(self):
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self.remoteURL = remoteURL
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if remoteURL == None:
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self.offline = True
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else:
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self.offline = False
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self.localZIP = "./download.zip"
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self.localUnZIP = "./temp"
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self.failed = False
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def downloadRemote(self):
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if self.offline == True:
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print("Configured for offline mode, add a 'path:remote' entry into the config file")
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return True
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#stream the remote path into download.zip
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r = requests.get(self.remoteURL, stream = True)
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if r.status_code != 200:
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print("URL %(url)s can't be loaded. Status Code = %(status)d" % {'url':self.remoteURL, 'status':r.status_code})
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self.failed = True
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else:
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#print(r.headers)
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length = 0
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print("download to %s" % self.localZIP)
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with open(self.localZIP, "wb") as zipped:
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for chunk in r.iter_content(chunk_size = 4096):
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if chunk:
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zipped.write(chunk)
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length += len(chunk)
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print("%d kB" % (length/1024), end="\r")
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print("successful download of %d kB of data" % (length/1024))
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result = self.updateLocalData()
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if result == True:
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os.remove(self.localZIP)
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self.failed = result
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return self.failed
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def updateLocalData(self):
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'''
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Update the local data withh the contents of the ZIP recently downloaded
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Ths function usually is called from downloadRemote above
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'''
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global localPathExists
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#unzip the downloaded file
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try:
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with zipfile.ZipFile(self.localZIP, 'r') as zipRef:
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zipRef.extractall(self.localUnZIP)
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except:
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print("Error while unzipping the downloaded data.")
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return False
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if localPathExists:
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#move orignal localPath away
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shutil.move(localPath, localPath+".old")
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#rename unzipped new data
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shutil.move(self.localUnZIP, localPath)
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if localPathExists:
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#remove old data
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shutil.rmtree(localPath+".old", True, None)
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localPathExists = True
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# this class simply cares about the fullscreen backdrop and starts playback
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class HiddenRoot(tk.Tk):
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def __init__(self):
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global bild_dauer
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tk.Tk.__init__(self)
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#hackish way, essentially makes root window
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#as small as possible but still "focused"
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#enabling us to use the binding on <esc>
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self.wm_geometry("0x0+0+0")
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self.window = MySlideShow(self)
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self.window.startSlideShow()
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def nextMedia(self):
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self.window.nextMedia()
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def previousMedia(self):
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self.window.pixNum = self.window.pixNum -2
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if self.window.pixNum < 0:
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self.window.pixNum = self.window.pixNum + len(self.window.mediaList)
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self.window.nextMedia()
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def destroy(self):
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self.window.player.stop()
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self.window.destroy()
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exit(0)
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def updateMedia(self):
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self.window.updateMedia()
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# this class contains some info about media files
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# it includes some media meta data especially duration of video clips
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class Mediafile:
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def __init__(self,filename,vlcinstance):
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self.filename = filename
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self.type = "unknown"
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self.duration = 0
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self.valid = False
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extension = os.path.basename(filename).split(".")[-1]
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if extension in image_extensions:
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print("image file: "+filename)
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self.valid = True
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elif extension in movie_extensions:
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media = vlcinstance.media_new(filename)
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media.parse()
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self.duration = media.get_duration()
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self.valid = True
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print("movie file: "+filename+ " (%d Sekunden)"%(self.duration/1000))
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else:
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print("unknwon file type: "+filename)
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class ttkTimer(Thread):
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"""a class serving same function as wxTimer... but there may be better ways to do this
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"""
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def __init__(self, callback, tick):
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Thread.__init__(self)
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self.callback = callback
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self.stopFlag = Event()
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self.tick = tick
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self.iters = 0
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def run(self):
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while not self.stopFlag.wait(self.tick):
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self.iters += 1
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self.callback()
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def stop(self):
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self.stopFlag.set()
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def get(self):
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return self.iters
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class MySlideShow(tk.Toplevel):
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def __init__(self, *args, **kwargs):
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tk.Toplevel.__init__(self, *args, **kwargs)
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#remove window decorations
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self.overrideredirect(True)
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self.paused = False
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self.info = None
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self.scr_w, self.scr_h = self.winfo_screenwidth(), self.winfo_screenheight()
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if DEBUG_PREVIEW == None or DEBUG_PREVIEW == True:
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self.scr_w = int(self.scr_w / 4)
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self.scr_h = int(self.scr_h / 4)
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self.scr_t = self.scr_h*3 - 10
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self.scr_l = self.scr_w*3 - 10
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else:
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self.scr_t = 0
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self.scr_l = 0
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print(self.scr_w,self.scr_h)
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#save reference to photo so that garbage collection
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#does not clear image variable in show_image()
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self.persistent_image = None
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self.mediaList = list()
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self.bgcolor = (0,0,0)
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# This creates the widget where files are played back
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self.player = None
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self.videopanel = tk.Frame(self, bg="black")
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self.videopanel.pack(side="top",fill=tk.BOTH,expand=1)
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# VLC player init
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self.instance = vlc.Instance("--no-xlib --quiet --fullscreen --")
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self.player = self.instance.media_player_new()
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self.player.video_set_scale(0)
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self.player.video_set_aspect_ratio('16:9')
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self.player.video_set_deinterlace('auto')
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self.player.video_set_mouse_input(False)
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self.player.video_set_key_input(False)
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# get Media Files
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self.getMedia()
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#self.updateMedia()
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def showInfo(self,_text):
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# This creates an info widget
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if self.info == None:
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print("ShowInfo: "+_text)
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self.info = tk.Label(self, bg="#00FF44", height=1, width=int(self.scr_w/9), text=_text)
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self.info.place(x=0,y=0)
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else:
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self.info.configure(text=_text)
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def hideInfo(self):
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if self.info != None:
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print("Hide info")
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self.info.destroy()
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self.info = None
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def getMedia(self):
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'''
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Get image directory from command line or use current directory
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'''
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curr_dir = localPath
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self.pixNum = 0
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for root, dirs, files in os.walk(curr_dir):
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for f in files:
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if f.startswith("._"):
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continue
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item = Mediafile(os.path.join(root, f),self.instance)
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if item.valid == True:
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self.mediaList.append(item)
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self.mediaList.sort(key=operator.attrgetter('filename'))
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def startSlideShow(self):
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self.paused = False
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if len(self.mediaList) < 1:
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# nothing to show, so abort
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print("no media files found")
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exit(1)
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self.wm_geometry("{}x{}+{}+{}".format(self.scr_w, self.scr_h,self.scr_l,self.scr_t))
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self.player.set_xwindow(self.GetHandle()) # this line messes up windows
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self.nextMedia()
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def nextMedia(self):
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global bild_dauer, update
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if self.paused == True:
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return
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media = self.mediaList[self.pixNum]
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self.pixNum = (self.pixNum + 1) % len(self.mediaList)
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self.showMedia(media)
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if update > 0:
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if update==1:
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self.updateMedia()
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update -= 1
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#its like a callback function after n seconds (cycle through pics)
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# movie should be played up to the end
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# images shall be shown as given in delays
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timer = media.duration
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if timer <= 0:
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timer = bild_dauer * 1000
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# print(media.filename, timer/1000)
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self.after(timer, self.nextMedia)
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def showMedia(self, media):
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_media = self.instance.media_new(media.filename)
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_media.parse()
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self.player.set_media(_media)
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self.player.audio_set_mute(True)
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self.player.play()
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def pausePlayback(self):
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self.paused = True
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def updateMedia(self):
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global update
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if remoteURL != None:
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self.showInfo("Update Media Files")
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self.pausePlayback()
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update = RemoteData()
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result = update.downloadRemote()
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self.hideInfo()
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update = 0
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self.getMedia()
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self.startSlideShow()
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def GetHandle(self):
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return self.videopanel.winfo_id()
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## ENTRY POINT ##
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readConfig()
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#autoUpdate = RemoteData()
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#result = autoUpdate.downloadRemote()
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#if result == False:
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# print("updating the media data failed")
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if os.path.exists(localPath) == False:
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print("local path containing media files not found")
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exit(1)
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slideShow = HiddenRoot()
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slideShow.bind("<Escape>", lambda e: slideShow.destroy()) # exit on esc
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slideShow.bind("<Right>", lambda e: slideShow.nextMedia()) # right-arrow key for next image
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slideShow.bind("<Left>", lambda e: slideShow.previousMedia()) # left-arrow key for previous image
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slideShow.bind("U", lambda e: slideShow.updateMedia()) # start dwnload of new media
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slideShow.mainloop()
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