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53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
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#!/usr/bin/env python
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# -*- Mode: Python -*-
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# vi:si:et:sw=4:sts=4:ts=4
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# sinkelement.py
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# (c) 2005 Edward Hervey <edward@fluendo.com>
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# (c) 2007 Jan Schmidt <jan@fluendo.com>
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# Licensed under LGPL
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#
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# Small test application to show how to write a sink element
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# in 20 lines in python and place into the gstreamer registry
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# so it can be autoplugged or used from parse_launch.
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#
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# Run this script with GST_DEBUG=python:5 to see the debug
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# messages
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from gi.repository import Gst, GObject
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#
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# Simple Sink element created entirely in python
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#
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class MySink(Gst.Element):
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__gstmetadata__ = ('CustomSink','Sink', \
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'Custom test sink element', 'Edward Hervey')
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__gsttemplates__ = Gst.PadTemplate.new ("sinkpadtemplate",
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Gst.PadDirection.SINK,
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Gst.PadPresence.ALWAYS,
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Gst.Caps.new_any())
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def __init__(self):
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Gst.Element.__init__(self)
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Gst.info('creating sinkpad')
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self.sinkpad = Gst.Pad.new_from_template(self.__gsttemplates__, "sink")
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Gst.info('adding sinkpad to self')
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self.add_pad(self.sinkpad)
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Gst.info('setting chain/event functions')
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self.sinkpad.set_chain_function(self.chainfunc)
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self.sinkpad.set_event_function(self.eventfunc)
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st = Gst.Structure.from_string("yes,fps=1/2")[0]
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def chainfunc(self, pad, buffer):
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Gst.info("%s timestamp(buffer):%d" % (pad, buffer.pts))
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return Gst.FlowReturn.OK
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def eventfunc(self, pad, event):
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Gst.info("%s event:%r" % (pad, event.type))
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return True
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GObject.type_register(MySink)
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__gstelementfactory__ = ("mysink", Gst.Rank.NONE, MySink)
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