mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-14 13:21:28 +00:00
67 lines
1.6 KiB
Python
67 lines
1.6 KiB
Python
#!/usr/bin/env python
|
|
# -*- Mode: Python -*-
|
|
# vi:si:et:sw=4:sts=4:ts=4
|
|
|
|
# sinkelement.py
|
|
# (c) 2005 Edward Hervey <edward@fluendo.com>
|
|
# Licensed under LGPL
|
|
#
|
|
# Small test application to show how to write a sink element
|
|
# in 20 lines in python
|
|
#
|
|
# Run this script with GST_DEBUG=python:5 to see the debug
|
|
# messages
|
|
|
|
import pygst
|
|
pygst.require('0.10')
|
|
import gst
|
|
import gobject
|
|
|
|
#
|
|
# Simple Sink element created entirely in python
|
|
#
|
|
|
|
class MySink(gst.Element):
|
|
|
|
_sinkpadtemplate = gst.PadTemplate ("sinkpadtemplate",
|
|
gst.PAD_SINK,
|
|
gst.PAD_ALWAYS,
|
|
gst.caps_new_any())
|
|
|
|
def __init__(self):
|
|
gst.Element.__init__(self)
|
|
gst.info('creating sinkpad')
|
|
self.sinkpad = gst.Pad(self._sinkpadtemplate, "sink")
|
|
gst.info('adding sinkpad to self')
|
|
self.add_pad(self.sinkpad)
|
|
|
|
gst.info('setting chain/event functions')
|
|
self.sinkpad.set_chain_function(self.chainfunc)
|
|
self.sinkpad.set_event_function(self.eventfunc)
|
|
|
|
def chainfunc(self, pad, buffer):
|
|
self.info("%s timestamp(buffer):%d" % (pad, buffer.timestamp))
|
|
return gst.FLOW_OK
|
|
|
|
def eventfunc(self, pad, event):
|
|
self.info("%s event:%r" % (pad, event.type))
|
|
return True
|
|
|
|
gobject.type_register(MySink)
|
|
|
|
#
|
|
# Code to test the MySink class
|
|
#
|
|
|
|
src = gst.element_factory_make('fakesrc')
|
|
gst.info('About to create MySink')
|
|
sink = MySink()
|
|
|
|
pipeline = gst.Pipeline()
|
|
pipeline.add(src, sink)
|
|
|
|
src.link(sink)
|
|
|
|
pipeline.set_state(gst.STATE_PLAYING)
|
|
|
|
gobject.MainLoop().run()
|