import pygst
pygst.require('0.10')
import gst
import gobject
gobject.threads_init()


if __name__ == "__main__":
    
    p = gst.Pipeline()
    audiosrc = gst.element_factory_make("audiotestsrc")
    audiosink = gst.element_factory_make("autoaudiosink")
    stouch = gst.element_factory_make("pitch")
    #stouch.set_property('pitch', 1.7)
    p.add(audiosrc, stouch, audiosink)
    gst.element_link_many(audiosrc, stouch, audiosink)

    ml = gobject.MainLoop()
    p.set_state(gst.STATE_PLAYING)

    ml.run()