mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
synced 2024-12-29 21:40:31 +00:00
107 lines
2.9 KiB
Python
107 lines
2.9 KiB
Python
import gi
|
|
import sys
|
|
|
|
|
|
gi.require_version('GLib', '2.0')
|
|
from gi.repository import GLib
|
|
gi.require_version('Gtk', '4.0')
|
|
from gi.repository import Gtk
|
|
gi.require_version('Gst', '1.0')
|
|
from gi.repository import Gst
|
|
|
|
def on_activate(app):
|
|
pipeline = Gst.Pipeline.new()
|
|
|
|
overlay = Gst.ElementFactory.make('clockoverlay', None)
|
|
overlay.set_property('font-desc', 'Monospace 42')
|
|
|
|
gtksink = Gst.ElementFactory.make('gtk4paintablesink', None)
|
|
paintable = gtksink.get_property('paintable')
|
|
|
|
if paintable.props.gl_context:
|
|
print('Using GL')
|
|
src = Gst.ElementFactory.make('gltestsrc', None)
|
|
|
|
sink = Gst.ElementFactory.make('glsinkbin', None)
|
|
sink.set_property('sink', gtksink)
|
|
else:
|
|
print('Not using GL')
|
|
src = Gst.ElementFactory.make('videotestsrc', None)
|
|
|
|
sink = Gst.Bin.new()
|
|
convert = Gst.ElementFactory.make('videoconvert', None)
|
|
|
|
sink.add(convert)
|
|
sink.add(gtksink)
|
|
convert.link(gtksink)
|
|
|
|
sink.add_pad(Gst.GhostPad.new('sink', convert.get_static_pad('sink')))
|
|
|
|
pipeline.add(src)
|
|
pipeline.add(overlay)
|
|
pipeline.add(sink)
|
|
|
|
src.link_filtered(overlay, Gst.Caps.from_string('video/x-raw(ANY), width=640, height=480'))
|
|
overlay.link(sink)
|
|
|
|
window = Gtk.ApplicationWindow(application=app)
|
|
window.set_default_size(640, 480)
|
|
|
|
vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
|
|
|
|
picture = Gtk.Picture.new()
|
|
picture.set_paintable(paintable)
|
|
|
|
vbox.append(picture)
|
|
|
|
label = Gtk.Label.new('Position: 00:00:00')
|
|
vbox.append(label)
|
|
|
|
window.set_child(vbox)
|
|
window.present()
|
|
|
|
app.add_window(window)
|
|
|
|
def on_timeout():
|
|
(res, position) = pipeline.query_position(Gst.Format.TIME)
|
|
if not res or position == -1:
|
|
label.set_text('Position: 00:00:00')
|
|
else:
|
|
seconds = int(position / 1000000000)
|
|
minutes = int(seconds / 60)
|
|
hours = int(minutes / 60)
|
|
seconds = seconds % 60
|
|
minutes = minutes % 60
|
|
label.set_text(f'Position: {hours:02}:{minutes:02}:{seconds:02}')
|
|
|
|
return True
|
|
|
|
GLib.timeout_add(500, on_timeout)
|
|
|
|
pipeline.set_state(Gst.State.PLAYING)
|
|
|
|
def on_bus_msg(_, msg):
|
|
match msg.type:
|
|
case Gst.MessageType.EOS:
|
|
app.quit()
|
|
case Gst.MessageType.ERROR:
|
|
(err, _) = msg.parse_error()
|
|
print(f'Error from {msg.src.path_string()}: {err}')
|
|
app.quit()
|
|
|
|
return True
|
|
|
|
bus = pipeline.get_bus()
|
|
bus.add_watch(GLib.PRIORITY_DEFAULT, on_bus_msg)
|
|
|
|
def on_close(_):
|
|
window.close()
|
|
pipeline.set_state(Gst.State.NULL)
|
|
app.connect('shutdown', on_close)
|
|
|
|
if __name__ == '__main__':
|
|
Gst.init(None)
|
|
app = Gtk.Application()
|
|
app.connect('activate', on_activate)
|
|
res = app.run(None)
|
|
sys.exit(res)
|