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47 lines
1.5 KiB
Python
47 lines
1.5 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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# identity.py
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# 2016 Marianna S. Buschle <msb@qtec.com>
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#
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# Simple identity element in python
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#
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# You can run the example from the source doing from gst-python/:
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#
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# $ export GST_PLUGIN_PATH=$GST_PLUGIN_PATH:$PWD/plugin:$PWD/examples/plugins
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# $ GST_DEBUG=python:4 gst-launch-1.0 fakesrc num-buffers=10 ! identity_py ! fakesink
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import gi
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gi.require_version('Gst', '1.0')
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gi.require_version('GstBase', '1.0')
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from gi.repository import Gst, GObject, GstBase
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Gst.init(None)
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#
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# Simple Identity element created entirely in python
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#
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class Identity(GstBase.BaseTransform):
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__gstmetadata__ = ('Identity Python','Transform', \
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'Simple identity element written in python', 'Marianna S. Buschle')
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__gsttemplates__ = (Gst.PadTemplate.new("src",
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Gst.PadDirection.SRC,
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Gst.PadPresence.ALWAYS,
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Gst.Caps.new_any()),
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Gst.PadTemplate.new("sink",
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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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self.transformed = False
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def do_transform_ip(self, buffer):
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self.transformed = True
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return Gst.FlowReturn.OK
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GObject.type_register(Identity)
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__gstelementfactory__ = ("test_identity_py", Gst.Rank.NONE, Identity)
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