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| #!/usr/bin/env python3 | |
| import gi | |
| gi.require_version("Gtk", "3.0") | |
| gi.require_version("Gst", "1.0") | |
| from gi.repository import Gtk, Gst, GLib | |
| import os, sys | |
| import time | |
| Gst.init(None) | |
| Gst.init_check(None) | |
| TITLE = "DeckLink Viewer" | |
| class PlayerWidget(Gtk.Box): | |
| """ This is the gtksink widget """ | |
| def __init__(self, connection, videoformat, mode): | |
| super().__init__() | |
| print("Creating new pipeline (%s, %s, %s)" % (connection, videoformat, mode)) | |
| self.pipeline = Gst.Pipeline() | |
| self.decklink = Gst.ElementFactory.make("decklinkvideosrc") | |
| self.decklink.set_property("device-number", 0) | |
| self.decklink.set_property("connection", connection) | |
| self.decklink.set_property("video-format", videoformat) | |
| self.decklink.set_property("mode", mode) | |
| self.decklinksnd = Gst.ElementFactory.make("decklinkaudiosrc") | |
| self.decklinksnd.set_property("do-timestamp", True) | |
| self.decklinksnd.set_property("alignment-threshold", 100) | |
| self.connect('realize', self.on_realize) | |
| def on_realize(self, widget): | |
| playerFactory = self.decklink.get_factory() | |
| videoconvert = playerFactory.make('videoconvert') | |
| gtksink = playerFactory.make('gtksink') | |
| audioconvert = playerFactory.make('audioconvert') | |
| pulsesink = playerFactory.make('pulsesink') | |
| pulsesink.set_property('sync', False) | |
| self.pipeline.add(self.decklink) | |
| self.pipeline.add(videoconvert) | |
| self.pipeline.add(gtksink) | |
| self.pipeline.add(self.decklinksnd) | |
| self.pipeline.add(audioconvert) | |
| self.pipeline.add(pulsesink) | |
| self.decklink.link(videoconvert) | |
| self.decklinksnd.link(audioconvert) | |
| videoconvert.link(gtksink) | |
| audioconvert.link(pulsesink) | |
| self.pack_start(gtksink.props.widget, True, True, 0) | |
| gtksink.props.widget.show() | |
| Gst.debug_bin_to_dot_file(self.pipeline, Gst.DebugGraphDetails.ALL, "dotfile") | |
| print(self.pipeline) | |
| self.pipeline.set_state(Gst.State.PLAYING) | |
| class MainWindow(Gtk.Window): | |
| def get_modes(self): | |
| decklink = Gst.ElementFactory.make("decklinkvideosrc") | |
| modes = [] | |
| for mode in dict(decklink.get_property("mode").__enum_values__).values(): | |
| modes.append(mode.value_name) | |
| return modes | |
| def get_connections(self): | |
| decklink = Gst.ElementFactory.make("decklinkvideosrc") | |
| connections = [] | |
| for connection in dict(decklink.get_property("connection").__enum_values__).values(): | |
| connections.append(connection.value_name) | |
| return connections | |
| def get_videoformats(self): | |
| decklink = Gst.ElementFactory.make("decklinkvideosrc") | |
| videoformats = [] | |
| for videoformat in dict(decklink.get_property("video-format").__enum_values__).values(): | |
| videoformats.append(videoformat.value_nick) | |
| return videoformats | |
| def __init__(self): | |
| Gtk.Window.__init__(self, title=TITLE) | |
| self.fullscreened = False | |
| self.set_default_size(1920, 1080) | |
| self.grid = Gtk.Grid() | |
| self.add(self.grid) | |
| self.grid.show() | |
| self.modes, self.connections, self.videoformats = self.get_modes(), self.get_connections(), self.get_videoformats() | |
| self.mode, self.videoformat, self.connection = 'HD1080 60p', "10bit-rgb", "HDMI" | |
| cell = Gtk.CellRendererText() | |
| modelist = Gtk.ListStore(str) | |
| for val in self.modes: | |
| modelist.append([val]) | |
| self.modebox = Gtk.ComboBox(model=modelist) | |
| self.grid.attach(self.modebox, 0, 1, 1, 1) | |
| self.modebox.pack_start(cell, False) | |
| self.modebox.add_attribute(cell, "text", 0) | |
| self.modebox.set_active(self.modes.index(self.mode)) | |
| self.modebox.show() | |
| self.modebox.connect("changed", self.on_changed_setting) | |
| videoformatlist = Gtk.ListStore(str) | |
| for val in self.videoformats: | |
| videoformatlist.append([val]) | |
| self.videoformatbox = Gtk.ComboBox(model=videoformatlist) | |
| self.grid.attach(self.videoformatbox, 1, 1, 1, 1) | |
| self.videoformatbox.pack_start(cell, False) | |
| self.videoformatbox.add_attribute(cell, "text", 0) | |
| self.videoformatbox.set_active(self.videoformats.index(self.videoformat)) | |
| self.videoformatbox.show() | |
| self.videoformatbox.connect("changed", self.on_changed_setting) | |
| connectionlist = Gtk.ListStore(str) | |
| for val in self.connections: | |
| connectionlist.append([val]) | |
| self.connectionbox = Gtk.ComboBox(model=connectionlist) | |
| self.grid.attach(self.connectionbox, 2, 1, 1, 1) | |
| self.connectionbox.pack_start(cell, False) | |
| self.connectionbox.add_attribute(cell, "text", 0) | |
| self.connectionbox.set_active(self.connections.index(self.connection)) | |
| self.connectionbox.show() | |
| self.connectionbox.connect("changed", self.on_changed_setting) | |
| self.playerWidget = None | |
| self.load_playerwidget() | |
| self.connect("key-press-event", self.on_key_press) | |
| self.connect("key-release-event", self.on_key_release) | |
| self.lostsignal = False | |
| self.timer = GLib.timeout_add(100, self.on_timer, self) | |
| def on_changed_setting(self, combo): | |
| self.mode = self.modes[self.modebox.get_active()] | |
| self.videoformat = self.videoformats[self.videoformatbox.get_active()] | |
| self.connection = self.connections[self.connectionbox.get_active()] | |
| self.set_title(TITLE) | |
| self.lostsignal = False | |
| self.load_playerwidget() | |
| def on_timer(self, timer): | |
| got_signal = self.playerWidget.decklink.get_property("signal") | |
| if not got_signal and not self.lostsignal: | |
| print("Lost signal") | |
| self.set_title("%s (No Signal)" % TITLE) | |
| self.lostsignal = True | |
| elif self.lostsignal and got_signal: | |
| print("Got signal") | |
| self.set_title(TITLE) | |
| self.load_playerwidget() | |
| self.lostsignal = False | |
| return True | |
| def load_playerwidget(self): | |
| if self.playerWidget is not None: | |
| self.playerWidget.pipeline.set_state(Gst.State.NULL) | |
| self.playerWidget.destroy() | |
| self.grid.remove(self.playerWidget) | |
| self.playerWidget = None | |
| self.playerWidget = PlayerWidget(mode=self.mode, connection=self.connection, videoformat=self.videoformat) | |
| self.playerWidget.set_size_request(1920, 1080) | |
| self.grid.attach(self.playerWidget, 0, 0, 3, 1) | |
| self.playerWidget.set_hexpand(True) | |
| self.playerWidget.set_vexpand(True) | |
| self.playerWidget.show() | |
| def on_key_release(self, widget, ev, data=None): | |
| key = ev.get_keycode()[1] | |
| print("release", key) | |
| def on_key_press(self, widget, ev, data=None): | |
| key = ev.get_keycode()[1] | |
| print("press", key) | |
| if key == 9: | |
| self.destroy() | |
| elif key == 27: | |
| self.load_playerwidget() | |
| elif key == 28: | |
| pass | |
| elif key == 41: | |
| if self.fullscreened: | |
| self.unfullscreen() | |
| self.fullscreened = False | |
| self.modebox.show() | |
| self.connectionbox.show() | |
| self.videoformatbox.show() | |
| else: | |
| self.fullscreen() | |
| self.fullscreened = True | |
| self.modebox.hide() | |
| self.connectionbox.hide() | |
| self.videoformatbox.hide() | |
| win = MainWindow() | |
| win.connect("destroy", Gtk.main_quit) | |
| win.show_all() | |
| Gtk.main() |
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