[example-scripts] overhaul and test all example scripts, fixes #5

1 files changed, 66 insertions, 0 deletions

diff --git a/example-scripts/gstreamer/source-background-loop.py b/example-scripts/gstreamer/source-background-loop.py
new file mode 100755
index 0000000..be59d18
--- /dev/null
+++ b/example-scripts/gstreamer/source-background-loop.py
@@ -0,0 +1,66 @@
+#!/usr/bin/python3
+import sys, gi, signal
+
+gi.require_version('Gst', '1.0')
+from gi.repository import Gst, GObject
+
+# init GObject & Co. before importing local classes
+GObject.threads_init()
+Gst.init([])
+
+class LoopSource(object):
+	def __init__(self):
+		# it works much better with a local file
+		pipeline = """
+			uridecodebin name=src uri=http://c3voc.mazdermind.de/testfiles/bg.ts !
+			videoscale !
+			videoconvert !
+			video/x-raw,format=UYVY,width=1920,height=1080,framerate=25/1,pixel-aspect-ratio=1/1 !
+			matroskamux !
+			tcpclientsink host=localhost port=16000
+		"""
+
+		self.senderPipeline = Gst.parse_launch(pipeline)
+		self.src = self.senderPipeline.get_by_name('src')
+
+		# Binding End-of-Stream-Signal on Source-Pipeline
+		self.senderPipeline.bus.add_signal_watch()
+		self.senderPipeline.bus.connect("message::eos", self.on_eos)
+		self.senderPipeline.bus.connect("message::error", self.on_error)
+
+		print("playing")
+		self.senderPipeline.set_state(Gst.State.PLAYING)
+
+
+	def on_eos(self, bus, message):
+		print('Received EOS-Signal, Seeking to start')
+		self.src.seek(
+			1.0,                 # rate (float)
+			Gst.Format.TIME,     # format (Gst.Format)
+			Gst.SeekFlags.FLUSH, # flags (Gst.SeekFlags)
+			Gst.SeekType.SET,    # start_type (Gst.SeekType)
+			0,                   # start (int)
+			Gst.SeekType.NONE,   # stop_type (Gst.SeekType)
+			0                    # stop (int)
+		)
+
+	def on_error(self, bus, message):
+		print('Received Error-Signal')
+		(error, debug) = message.parse_error()
+		print('Error-Details: #%u: %s' % (error.code, debug))
+		sys.exit(1)
+
+def main():
+	signal.signal(signal.SIGINT, signal.SIG_DFL)
+
+	src = LoopSource()
+
+	mainloop = GObject.MainLoop()
+	try:
+		mainloop.run()
+	except KeyboardInterrupt:
+		print('Terminated via Ctrl-C')
+
+
+if __name__ == '__main__':
+	main()