Update

subprojects/gst-python/examples/plugins/python/sinkelement.py

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+#!/usr/bin/env python
+# -*- Mode: Python -*-
+# vi:si:et:sw=4:sts=4:ts=4
+
+# sinkelement.py
+# (c) 2005 Edward Hervey <edward@fluendo.com>
+# (c) 2007 Jan Schmidt <jan@fluendo.com>
+# Licensed under LGPL
+#
+# Small test application to show how to write a sink element
+# in 20 lines in python and place into the gstreamer registry
+# so it can be autoplugged or used from parse_launch.
+#
+# You can run the example from the source doing from gst-python/:
+#
+#  $ export GST_PLUGIN_PATH=$GST_PLUGIN_PATH:$PWD/plugin:$PWD/examples/plugins
+#  $ GST_DEBUG=python:4 gst-launch-1.0 fakesrc num-buffers=10 ! mysink
+
+from gi.repository import Gst, GObject, GstBase
+Gst.init(None)
+
+#
+# Simple Sink element created entirely in python
+#
+class MySink(GstBase.BaseSink):
+    __gstmetadata__ = ('CustomSink','Sink', \
+                      'Custom test sink element', 'Edward Hervey')
+
+    __gsttemplates__ = Gst.PadTemplate.new("sink",
+                                           Gst.PadDirection.SINK,
+                                           Gst.PadPresence.ALWAYS,
+                                           Gst.Caps.new_any())
+
+    def do_render(self, buffer):
+        Gst.info("timestamp(buffer):%s" % (Gst.TIME_ARGS(buffer.pts)))
+        return Gst.FlowReturn.OK
+
+GObject.type_register(MySink)
+__gstelementfactory__ = ("mysink", Gst.Rank.NONE, MySink)