mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-27 10:40:34 +00:00
70 lines
2 KiB
Python
70 lines
2 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>
|
||
|
|
# (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.
|
||
|
|
#
|
||
|
|
# Run this script with GST_DEBUG=python:5 to see the debug
|
||
|
|
# messages
|
||
|
|
|
||
|
|
import pygst
|
||
|
|
pygst.require('0.10')
|
||
|
|
import gst
|
||
|
|
import gobject
|
||
|
|
gobject.threads_init ()
|
||
|
|
|
||
|
|
#
|
||
|
|
# Simple Sink element created entirely in python
|
||
|
|
#
|
||
|
|
|
||
|
|
class MySink(gst.Element):
|
||
|
|
__gstdetails__ = ('CustomSink','Sink', \
|
||
|
|
'Custom test sink element', 'Edward Hervey')
|
||
|
|
|
||
|
|
_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)
|
||
|
|
|
||
|
|
# Register the element into this process' registry.
|
||
|
|
gst.element_register (MySink, 'mysink', gst.RANK_MARGINAL)
|
||
|
|
|
||
|
|
print "Use --gst-debug=python:3 to see output from this example"
|
||
|
|
|
||
|
|
#
|
||
|
|
# Code to test the MySink class
|
||
|
|
#
|
||
|
|
gst.info('About to create MySink')
|
||
|
|
pipeline = gst.parse_launch ("fakesrc ! mysink")
|
||
|
|
pipeline.set_state(gst.STATE_PLAYING)
|
||
|
|
|
||
|
|
gobject.MainLoop().run()
|