OK, thanks for continuing to look into it!
In case it helps: Below is a Python script + Gstreamer lib where setting the
URL property behaves as expected. It just toggles between playing two video
clips, setting the URL property when the 'about-to-finish' event fires. Not
sure if this will be of any use, but it might? I ran this script w/ Ubuntu
16.04 and GStreamer 1.8.2, which is a different system than the one I
originally asked about. I have confirmed that running Gambas 3.9.0 on the
same system that the Python script below runs doesn't behave as expected.
Thanks again!
<code>
#!/usr/bin/env python
import sys, os
import gi
gi.require_version('Gst', '1.0')
gi.require_version('Gtk', '3.0')
gi.require_version('GstVideo', '1.0')
from gi.repository import Gst, GObject, Gtk
# Needed for window.get_xid(), xvimagesink.set_window_handle(),
respectively:
from gi.repository import GdkX11, GstVideo
class GTK_Main(object):
def __init__(self):
window = Gtk.Window(Gtk.WindowType.TOPLEVEL)
window.set_title("Video-Player")
window.set_default_size(500, 400)
window.connect("destroy", Gtk.main_quit, "WM destroy")
vbox = Gtk.VBox()
window.add(vbox)
hbox = Gtk.HBox()
vbox.pack_start(hbox, False, False, 0)
self.entry = Gtk.Entry()
hbox.add(self.entry)
self.button = Gtk.Button("Start")
hbox.pack_start(self.button, False, False, 0)
self.button.connect("clicked", self.start_stop)
self.movie_window = Gtk.DrawingArea()
vbox.add(self.movie_window)
window.show_all()
self.iPos = 0
self.player = Gst.ElementFactory.make("playbin", "player")
bus = self.player.get_bus()
bus.add_signal_watch()
bus.enable_sync_message_emission()
bus.connect("message", self.on_message)
bus.connect("sync-message::element", self.on_sync_message)
self.player.connect("about-to-finish", self.finished)
def finished(self, player):
print "About to Finish"
if self.iPos == 0:
self.player.set_property("uri",
"file:///home/chris/Desktop/test5.mp4" )
self.iPos = 1
else:
self.player.set_property("uri",
"file:///home/chris/Desktop/output.mp4" )
self.iPos = 0
def start_stop(self, w):
if self.button.get_label() == "Start":
filepath = self.entry.get_text().strip()
if os.path.isfile(filepath):
filepath = os.path.realpath(filepath)
self.button.set_label("Stop")
self.player.set_property("uri",
"file:///home/chris/Desktop/output.mp4"
)
self.player.set_state(Gst.State.PLAYING)
else:
self.player.set_state(Gst.State.NULL)
self.button.set_label("Start")
def on_message(self, bus, message):
t = message.type
if t == Gst.MessageType.EOS:
self.player.set_state(Gst.State.NULL)
self.button.set_label("Start")
elif t == Gst.MessageType.ERROR:
self.player.set_state(Gst.State.NULL)
err, debug = message.parse_error()
print "Error: %s" % err, debug
self.button.set_label("Start")
def on_sync_message(self, bus, message):
if message.get_structure().get_name() ==
'prepare-window-handle':
imagesink = message.src
imagesink.set_property("force-aspect-ratio", True)
imagesink.set_window_handle(self.movie_window.get_property('window').get_xid())
GObject.threads_init()
Gst.init(None)
GTK_Main()
Gtk.main()
</code>
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