<html><head></head><body><div style="color:#000; background-color:#fff; font-family:lucida console, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1505922022782_18830">I call the GObject and Gst init() methods in main.</div><div id="yui_3_16_0_ym19_1_1505922022782_18833"> </div><div id="yui_3_16_0_ym19_1_1505922022782_18831">Something else I noticed is that you put your pipeline in PLAYING state before conencting.</div><div id="yui_3_16_0_ym19_1_1505922022782_21140">Not sure it explains your problem but you might miss some messages.</div><div id="yui_3_16_0_ym19_1_1505922022782_21146"> </div><div>Do you receive the sync-message:element ? </div><div id="yui_3_16_0_ym19_1_1505922022782_18832"></div> <div class="qtdSeparateBR"> </div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: lucida console, sans-serif; font-size: 13px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"> Le Mercredi 20 septembre 2017 16h11, WisdomPill <anas.el.amraoui@live.com> a écrit : </div> <div class="y_msg_container"><div dir="ltr">I do have those two lines but in a class that inherits from Tkinter window... The code is the following import json from configparser import ConfigParser from threading import Timer from time import time, sleep from tkinter import Tk import gi from lib.descriptors import ConfigurationDescriptor, StreamDescriptor from lib.widgets import SensorStreamWidget gi.require_version('Gst', '1.0') from gi.repository import Gst, GObject class VisualizerApp(Tk): def __init__(self): super(VisualizerApp, self).__init__() self.config(cursor='none', background='black') self.attributes("-fullscreen", True) # Update the app to apply the geometry self.update() self.config_filename = 'conf/config.ini' self.conf = self.init_configuration() self.streams = list() self.calculate_streams_rectangles() Gst.init(None) GObject.threads_init() self.streaming_widgets = self.init_streaming_widgets() def init_configuration(self): conf = self.parse_configuration() row_height = int(conf['grid']['row_height']) streams_filename = conf['grid']['streams_filename'] streams_json = json.load(open(streams_filename)) d = { 'row_height': row_height, 'streams': streams_json['streams'] } return ConfigurationDescriptor(d) def calculate_streams_rectangles(self): x = 0 y = 0 for stream_dict in self.conf.streams: initial_resolution = stream_dict['resolution'] initial_width = int(initial_resolution['width']) initial_height = int(initial_resolution['height']) final_height = self.conf.row_height final_width = initial_width * self.conf.row_height / initial_height if x + final_width >= self.winfo_width(): x = 0 y += self.conf.row_height d = { 'x': x, 'y': y, 'width': final_width, 'height': final_height } stream_dict.update(d) # TODO remove this is only for debug purposes print(json.dumps(d, indent=4)) self.streams.append(StreamDescriptor(stream_dict)) x += final_width def parse_configuration(self): conf = ConfigParser() conf.read(self.config_filename) return conf def init_streaming_widgets(self): streaming_widgets = list() for stream in self.streams: streaming_widget = SensorStreamWidget(stream, self) streaming_widgets.append(streaming_widget) return streaming_widgets then I have a widgets.py file with the following from tkinter.ttk import Widget import gi # Needed for set_window_handle(): gi.require_version('GstVideo', '1.0') gi.require_version('Gst', '1.0') from gi.repository import Gst, GObject, GstVideo class GstWidget(Widget): def __init__(self, gst_launch_string, x, y, width, height, master=None, **kw): super(GstWidget, self).__init__(master, 'frame', **kw) self.place(x=x, y=y, width=width, height=height) self.frame_id = self.winfo_id() self.player = Gst.parse_launch(gst_launch_string) self.player.set_state(Gst.State.PLAYING) self.bus = self.player.get_bus() self.bus.add_signal_watch() self.bus.connect('message::error', self.on_error) self.bus.connect('message::state-changed', self.on_status_changed) self.bus.connect('message::eos', self.on_eos) self.bus.connect('message::info', self.on_info) self.bus.enable_sync_message_emission() self.bus.connect('sync-message::element', self.set_frame_handle) def on_status_changed(self, bus, message): print('status_changed message -> {}'.format(message)) def on_eos(self, bus, message): print('eos message -> {}'.format(message)) def on_info(self, bus, message): print('info message -> {}'.format(message)) def on_error(self, bus, message): print('error message -> {}'.format(message.parse_error())) def play(self): print('Current state of my pipeline is {}'.format(self.player.current_state)) print('setting pipeline state to playing') self.player.set_state(Gst.State.PLAYING) def close(self): self.player.set_state(Gst.State.NULL) def is_playing(self): print('\t\t{}'.format(self.player.current_state)) return self.player.current_state is not Gst.State.PLAYING def set_frame_handle(self, bus, message): if message.get_structure().get_name() == 'prepare-window-handle': frame = message.src frame.set_property('force-aspect-ratio', True) frame.set_window_handle(self.frame_id) class SensorStreamWidget(GstWidget): def __init__(self, stream, master=None, **kw): gstreamer_launch_string = 'tcpclientsrc host={} port={} ! gdpdepay ! ' \ 'rtph264depay ! avdec_h264 ! videoconvert ! ' \ 'autovideosink sync=false'.format(stream.host, stream.port) x = stream.x y = stream.y width = stream.width height = stream.height self.stream_descriptor = stream super(SensorStreamWidget, self).__init__(gstreamer_launch_string, x, y, width, height, master, **kw) then I start my app from a file called main.py from lib.app import VisualizerApp if __name__ == '__main__': window = VisualizerApp() window.mainloop() I tried moving the two lines to the init method of the GstWidget but without success.<div class="yqt4294351500" id="yqtfd27989"> -- Sent from: <a shape="rect" href="http://gstreamer-devel.966125.n4.nabble.com/" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/</a> _______________________________________________ gstreamer-devel mailing list <a shape="rect" ymailto="mailto:gstreamer-devel@lists.freedesktop.org" href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a shape="rect" href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </div></div> </div> </div> </div> </div></div></body></html>