#!/usr/bin/env python3 import gi, signal, logging, sys, os # import GStreamer and GLib-Helper classes gi.require_version('Gtk', '3.0') gi.require_version('Gst', '1.0') gi.require_version('GdkX11', '3.0') gi.require_version('GstVideo', '1.0') from gi.repository import Gtk, Gdk, Gst, GObject, GdkX11, GstVideo # check min-version minGst = (1, 5) minPy = (3, 0) Gst.init([]) if Gst.version() < minGst: raise Exception("GStreamer version", Gst.version(), 'is too old, at least', minGst, 'is required') if sys.version_info < minPy: raise Exception("Python version", sys.version_info, 'is too old, at least', minPy, 'is required') # init GObject & Co. before importing local classes GObject.threads_init() Gdk.init([]) Gtk.init([]) # import local classes from lib.args import Args from lib.config import Config from lib.ui import Ui from lib.loghandler import LogHandler import lib.connection as Connection import lib.clock as ClockManager # main class class Voctogui(object): def __init__(self): self.log = logging.getLogger('Voctogui') # Uf a UI-File was specified on the Command-Line, load it if Args.ui_file: self.log.info('loading ui-file from file specified on command-line: %s', self.options.ui_file) self.ui = Ui(Args.ui_file) else: # Paths to look for the gst-switch UI-File paths = [ os.path.join(os.path.dirname(os.path.realpath(__file__)), 'ui/voctogui.ui'), '/usr/lib/voctogui/ui/voctogui.ui' ] # Look for a gst-switch UI-File and load it for path in paths: self.log.debug('trying to load ui-file from file %s', path) if os.path.isfile(path): self.log.info('loading ui-file from file %s', path) self.ui = Ui(path) break if self.ui is None: raise Exception("Can't find any .ui-Files to use (searched %s)" % (', '.join(paths))) self.ui.setup() def run(self): self.log.info('setting UI visible') self.ui.show() try: self.log.info('running Gtk-MainLoop') Gtk.main() self.log.info('Gtk-MainLoop ended') except KeyboardInterrupt: self.log.info('Terminated via Ctrl-C') def quit(self): self.log.info('quitting Gtk-MainLoop') Gtk.main_quit() # run mainclass def main(): # configure logging docolor = (Args.color == 'always') or (Args.color == 'auto' and sys.stderr.isatty()) handler = LogHandler(docolor, Args.timestamp) logging.root.addHandler(handler) if Args.verbose >= 2: level = logging.DEBUG elif Args.verbose == 1: level = logging.INFO else: level = logging.WARNING logging.root.setLevel(level) # make killable by ctrl-c logging.debug('setting SIGINT handler') signal.signal(signal.SIGINT, signal.SIG_DFL) logging.info('Python Version: %s', sys.version_info) logging.info('GStreamer Version: %s', Gst.version()) # establish a synchronus connection to server Connection.establish( Config.get('server', 'host')) # fetch config from server Config.fetchServerConfig() # Warn when connecting to a non-local core without preview-encoders enabled # the list-comparison is not complete (one could use a local hostname or the local system ip) # but it's only here to warn that one might be making a mistake use_previews = Config.getboolean('previews', 'enabled') and Config.getboolean('previews', 'use') looks_like_localhost = Config.get('server', 'host') in ['::1', '127.0.0.1', 'localhost'] if not use_previews and not looks_like_localhost: logging.warn( 'Connecting to `%s` (which looks like a remote host) might not work without enabeling ' 'the preview encoders (set `[previews] enabled=true` on the core) or it might saturate ' 'your ethernet link between the two machines.', Config.get('server', 'host') ) # obtain network-clock ClockManager.obtainClock(Connection.ip) # switch connection to nonblocking, event-driven mode Connection.enterNonblockingMode() # init main-class and main-loop # (this binds all event-hander on the Connection) logging.debug('initializing Voctogui') voctogui = Voctogui() # start the Mainloop and show the Window logging.debug('running Voctogui') voctogui.run() if __name__ == '__main__': main()