Commit a9cc3ed6 authored by Marianna Smidth Buschle's avatar Marianna Smidth Buschle Committed by Thibault Saunier

examples: Added identity example

Created a simple BaseTransform element (identity)

https://bugzilla.gnome.org/show_bug.cgi?id=772853
parent b7a78a37
#!/usr/bin/env python
# -*- Mode: Python -*-
# vi:si:et:sw=4:sts=4:ts=4
# identity.py
# 2016 Marianna S. Buschle <msb@qtec.com>
#
# Simple identity element in python
#
# 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 ! identity_py ! fakesink
import gi
gi.require_version('GstBase', '1.0')
from gi.repository import Gst, GObject, GstBase
Gst.init(None)
#
# Simple Identity element created entirely in python
#
class Identity(GstBase.BaseTransform):
__gstmetadata__ = ('Identity Python','Transform', \
'Simple identity element written in python', 'Marianna S. Buschle')
__gsttemplates__ = (Gst.PadTemplate.new("src",
Gst.PadDirection.SRC,
Gst.PadPresence.ALWAYS,
Gst.Caps.new_any()),
Gst.PadTemplate.new("sink",
Gst.PadDirection.SINK,
Gst.PadPresence.ALWAYS,
Gst.Caps.new_any()))
def do_transform_ip(self, buffer):
Gst.info("timestamp(buffer):%s" % (Gst.TIME_ARGS(buffer.pts)))
return Gst.FlowReturn.OK
GObject.type_register(Identity)
__gstelementfactory__ = ("identity_py", Gst.Rank.NONE, Identity)
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