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subprojects/gst-python/old_examples/f2f.py

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+#!/usr/bin/env python
+# -*- Mode: Python -*-
+# vi:si:et:sw=4:sts=4:ts=4
+
+# gst-python
+# Copyright (C) 2002 David I. Lehn
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public
+# License as published by the Free Software Foundation; either
+# version 2 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Library General Public License for more details.
+#
+# You should have received a copy of the GNU Library General Public
+# License along with this library; if not, write to the
+# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+# Boston, MA 02110-1301, USA.
+# 
+# Author: David I. Lehn <dlehn@users.sourceforge.net>
+#
+
+import sys
+
+import pygst
+pygst.require('0.10')
+
+import gst
+
+def handoff_cb(sender, *args):
+   print sender.get_name(), args
+
+def main(args):
+   # create a new bin to hold the elements
+   #gst_debug_set_categories(-1)
+   bin = gst.parse_launch('fakesrc name=source silent=1 num-buffers=10 signal-handoffs=true ! ' +
+                          'fakesink name=sink silent=1 signal-handoffs=true')
+   source = bin.get_by_name('source')
+   source.connect('handoff', handoff_cb)
+   source.get_pad("src").connect("have-data", handoff_cb)
+   sink = bin.get_by_name('sink')
+   sink.connect('handoff', handoff_cb)
+   sink.get_pad("sink").connect('have-data', handoff_cb)
+
+   print source, sink
+
+   bus = bin.get_bus()
+   
+   res = bin.set_state(gst.STATE_PLAYING);
+   assert res
+
+   while 1:
+      msg = bus.poll(gst.MESSAGE_EOS | gst.MESSAGE_ERROR, gst.SECOND)
+      if msg:
+         break
+
+   res = bin.set_state(gst.STATE_NULL)
+   assert res
+
+if __name__ == '__main__':
+   sys.exit(main(sys.argv))