implement grabbersrc via shm

1 files changed, 53 insertions, 0 deletions

diff --git a/voctocore/experiments/videodisplay.py b/voctocore/experiments/videodisplay.py
new file mode 100644
index 0000000..57087da
--- /dev/null
+++ b/voctocore/experiments/videodisplay.py
@@ -0,0 +1,53 @@
+#!/usr/bin/python3
+from gi.repository import GObject, Gst
+
+class VideomixerWithDisplay(Gst.Bin):
+	def __init__(self):
+		super().__init__()
+
+		# Create elements
+		self.secondsrc = Gst.ElementFactory.make('videotestsrc', None)
+		self.mixer = Gst.ElementFactory.make('videomixer', None)
+		self.ident = Gst.ElementFactory.make('identity', None)
+		self.conv = Gst.ElementFactory.make('videoconvert', None)
+		self.q1 = Gst.ElementFactory.make('queue', None)
+		self.q2 = Gst.ElementFactory.make('queue', None)
+		self.display = Gst.ElementFactory.make('ximagesink', None)
+
+		# Add elements to Bin
+		self.add(self.secondsrc)
+		self.add(self.mixer)
+		self.add(self.ident)
+		self.add(self.conv)
+		self.add(self.display)
+		self.add(self.q1)
+		self.add(self.q2)
+
+		# Set properties
+		self.secondsrc.set_property('pattern', 'ball')
+		self.ident.set_property('sync', True)
+		self.display.set_property('sync', False)
+
+		# Request Pads
+		self.firstpad = self.mixer.get_request_pad('sink_%u')
+		self.secondpad = self.mixer.get_request_pad('sink_%u')
+
+		# Set pad-properties
+		self.secondpad.set_property('alpha', 0.75)
+		self.secondpad.set_property('xpos', 50)
+		self.secondpad.set_property('ypos', 50)
+
+		# Link elements
+		self.q1.get_static_pad('src').link(self.firstpad)
+
+		self.q2.get_static_pad('src').link(self.secondpad)
+		self.secondsrc.link_filtered(self.ident, Gst.Caps.from_string('video/x-raw,format=BGRA,width=400,height=400,framerate=25/1'))
+		self.ident.link(self.q2)
+
+		self.mixer.link(self.conv)
+		self.conv.link(self.display)
+
+		# Add Ghost Pads
+		self.add_pad(
+			Gst.GhostPad.new('sink', self.q1.get_static_pad('sink'))
+		)