involve a scaler and more properties to match the voctomix core more closely

1 files changed, 36 insertions, 7 deletions

diff --git a/voctocore/experiments/sync-videomix.py b/voctocore/experiments/sync-videomix.py
index 0f6e780..1e17a2e 100755
--- a/voctocore/experiments/sync-videomix.py
+++ b/voctocore/experiments/sync-videomix.py
@@ -17,11 +17,15 @@ class Example:
 		pipeline = """
 			videotestsrc pattern=red !
 			{caps} !
+			videoscale !
+			capsfilter name=caps0 !
 			identity sync=true signal-handoffs=false !
 			mix.
 
 			videotestsrc pattern=green !
 			{caps} !
+			videoscale !
+			capsfilter name=caps1 !
 			identity sync=true signal-handoffs=false !
 			mix.
 
@@ -32,22 +36,47 @@ class Example:
 			pngenc !
 			multifilesink location=frame%04d.png
 		""".format(
-			caps='video/x-raw,height=450,width=800,format=I420,framerate=25/1'
+			caps='video/x-raw,width=800,height=450,format=I420,framerate=25/1'
 		)
 
 		self.pipeline = Gst.parse_launch(pipeline)
 		sig = self.pipeline.get_by_name('sig')
 		sig.connect('handoff', self.handoff)
 
-		self.mix = self.pipeline.get_by_name('mix')
-		self.state = 0
+		self.pad0 = self.pipeline.get_by_name('mix').get_static_pad('sink_0')
+		self.pad1 = self.pipeline.get_by_name('mix').get_static_pad('sink_1')
+
+		self.caps0 = self.pipeline.get_by_name('caps0')
+		self.caps1 = self.pipeline.get_by_name('caps1')
+
+		self.state = False
 
 	def handoff(self, object, buffer):
-		mixerpad = self.mix.get_static_pad('sink_1')
 
-		print('handoff, alpha=%u' % self.state)
-		mixerpad.set_property('alpha', self.state)
-		self.state = 0 if self.state else 1
+		if self.state:
+			padA = self.pad0
+			padB = self.pad1
+			capsA = self.caps0
+			capsB = self.caps1
+		else:
+			padA = self.pad1
+			padB = self.pad0
+			capsA = self.caps1
+			capsB = self.caps0
+
+		padA.set_property('xpos', 10)
+		padA.set_property('ypos', 10)
+		padA.set_property('alpha', 1.0)
+		padA.set_property('zorder', 1)
+		capsA.set_property('caps', Gst.Caps.from_string('video/x-raw,width=400,height=225'))
+
+		padB.set_property('xpos', 390)
+		padB.set_property('ypos', 215)
+		padB.set_property('alpha', 1.0)
+		padB.set_property('zorder', 2)
+		capsB.set_property('caps', Gst.Caps.from_string('video/x-raw,width=400,height=225'))
+
+		self.state = not self.state
 
 	def run(self):
 		self.pipeline.set_state(Gst.State.PLAYING)