import os, sys
import Tkinter as tkinter

import gi
gi.require_version('Gst', '1.0')
gi.require_version('GstVideo', '1.0')
#gi.require_version('GdkX11', '3.0')
from gi.repository import Gst, GObject, GstVideo


def on_sync_message(bus, message, frame_id):
    if not message.get_structure() is None:
        print "sync: "+message.get_structure().get_name()
        if message.get_structure().get_name() == 'prepare-window-handle':
            display_frame = message.src
            display_frame.set_property('force-aspect-ratio', True)
            display_frame.set_window_handle(frame_id)
            
def on_message(bus,message):
    t = message.type
    print "message: "+str(message.type)
    if t == Gst.MessageType.EOS:
        self.player.set_state(Gst.State.NULL)
    elif t == Gst.MessageType.ERROR:
        err, debug = message.parse_error()
        print "Error: %s" % err, debug
        self.player.set_state(Gst.State.NULL)
    

window = tkinter.Tk()
window.title('')
window.geometry('500x400')

GObject.threads_init()
Gst.init(None)

# can aslo use display_frame = tkinter.Frame(window)
display_frame = tkinter.Canvas(window, bg='#030')
display_frame.pack(side=tkinter.TOP,expand=tkinter.YES,fill=tkinter.BOTH)
frame_id = display_frame.winfo_id()

#player = Gst.ElementFactory.make('playbin', None)
##filepath = os.path.realpath('test.mp4')
#filepath2 = "file:///" + filepath.replace('\\', '/').replace(':', '|')
#player.set_property('uri', filepath2)
cmd = 'souphttpsrc ssl-strict=false location="http://walterebert.com/playground/video/hls/ts/480x270.m3u8" ! decodebin! autovideosink'
player = Gst.parse_launch(cmd)
source = player.get_child_by_name('souphttpsrc0')
pass
#player = Gst.Pipeline("player")
#source = Gst.ElementFactory.make("souphttpsrc", "source")
#source.set_property("location","http://walterebert.com/playground/video/hls/ts/480x270.m3u8")
#decodebin = Gst.ElementFactory.make("decodebin", "decodebin")
#output = Gst.ElementFactory.make("autovideosink", "output")
#player.add(source)
#player.add(decodebin)
#player.add(output)
#source.link(decodebin)
#decodebin.link(output)

VideoCrop = Gst.ElementFactory.make('videocrop', 'VideoCrop')
VideoCrop.set_property('top', 100)
VideoCrop.set_property('bottom', 100)
VideoCrop.set_property('left', 50)
VideoCrop.set_property('right', 150)
#player.set_property('video-filter', VideoCrop)

bus = player.get_bus()
bus.add_signal_watch()
bus.enable_sync_message_emission()
bus.connect("message", on_message)
bus.connect('sync-message::element', on_sync_message, frame_id)


player.set_state(Gst.State.PLAYING)
window.mainloop()