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Python Source format, 5 years 5 months old, and 1,062 hits.

Untitled
Sunday, August 27th, 2006 at 3:05:52am MDT 

  1. import sys
  2. import gobject
  3.  
  4. import pygst
  5. pygst.require ("0.10")
  6. import gst
  7.  
  8. def bus_message_eos_cb (bus, message, loop):
  9.         loop.quit ()
  10.  
  11. def bus_message_tag_cb (bus, message, pad):
  12.         taglist = message.parse_tag ()
  13.         try:
  14.                 tag = taglist["cmml-clip"]
  15.                 buf = gst.Buffer (tag.props.description)
  16.                 buf.timestamp = tag.props.start_time
  17.                 buf.duration = tag.props.end_time - tag.props.start_time
  18.                 print pad.push (buf)
  19.         except KeyError:
  20.                 return
  21.  
  22. def main ():
  23.         loop = gobject.MainLoop ()
  24.        
  25.         # setup playbin
  26.         playbin = gst.element_factory_make ("playbin")
  27.        
  28.         # create the video sink bin
  29.  
  30.         # create a pad and connect it to textoverlay
  31.         videosink = gst.Bin ()
  32.         textoverlay = gst.element_factory_make ("textoverlay")
  33.  
  34.         # create xvimagesink
  35.         xvimagesink = gst.element_factory_make ("xvimagesink")
  36.         videosink.add (textoverlay, xvimagesink)
  37.  
  38.         # create a srcpad to push data to textoverlay
  39.         pad = gst.Pad ("mysrc", gst.PAD_SRC)
  40.         pad.set_caps (gst.Caps ("text/plain"))
  41.         pad.link (textoverlay.get_pad ("text_sink"))
  42.  
  43.         textoverlay.link (xvimagesink)
  44.         videosink.add_pad (gst.GhostPad ("sink",
  45.                 textoverlay.get_pad ("video_sink")))
  46.  
  47.         playbin.set_property ("video-sink", videosink)
  48.         playbin.set_property ("uri", sys.argv[1])
  49.        
  50.         pipeline = gst.Pipeline ()
  51.         bus = gst.Bus ()
  52.         pipeline.set_bus (bus)
  53.         bus.add_signal_watch ()
  54.         bus.connect ("message::eos", bus_message_eos_cb, loop)
  55.         bus.connect ("message::tag", bus_message_tag_cb, pad)
  56.  
  57.         pipeline.add (playbin)
  58.         pipeline.set_state (gst.STATE_PLAYING)
  59.         loop.run ()
  60.         pipeline.set_state (gst.STATE_NULL)
  61.  
  62. if __name__ == '__main__':
  63.         main ()

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