1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
#!/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.
#
# 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 ! mysink
#
# Since this implements the `mypysink://` protocol you can also do:
#
# $ gst-launch-1.0 videotestsrc ! pymysink://
from gi.repository import Gst, GObject, GstBase
Gst.init_python()
#
# Simple Sink element created entirely in python
#
class MySink(GstBase.BaseSink, Gst.URIHandler):
__gstmetadata__ = ('CustomSink','Sink', \
'Custom test sink element', 'Edward Hervey')
__gsttemplates__ = Gst.PadTemplate.new("sink",
Gst.PadDirection.SINK,
Gst.PadPresence.ALWAYS,
Gst.Caps.new_any())
__protocols__ = ("pymysink",)
__uritype__ = Gst.URIType.SINK
def __init__(self):
super().__init__()
# Working around https://gitlab.gnome.org/GNOME/pygobject/-/merge_requests/129
self.__dontkillme = self
def do_render(self, buffer):
Gst.info("timestamp(buffer):%s" % (Gst.TIME_ARGS(buffer.pts)))
return Gst.FlowReturn.OK
def do_get_uri(self, uri):
return "pymysink://"
def do_set_uri(self, uri):
return True
GObject.type_register(MySink)
__gstelementfactory__ = ("mysink", Gst.Rank.NONE, MySink)
|
