src/videoplayer.py

   1 import os
   2 import gst, gtk, gobject
   3 import sys
   4 import pygtk
   5 import gtk
   6 import gtk.glade
   7
   8 class videoplayer:
   9     def __init__( self, parent ):
  10         self.parent = parent
  11         self.wTree = parent.wTree
  12
  13         self.playbin = gst.element_factory_make('playbin2')
  14
  15         self.sink = gst.element_factory_make('xvimagesink')
  16         self.sink.set_property('force-aspect-ratio', True)
  17         self.playbin.set_property('video-sink', self.sink)
  18
  19         self.bus = self.playbin.get_bus()
  20         self.bus.add_signal_watch()
  21         self.bus.connect("message::eos", self.on_finish)
  22
  23         self.drawingarea = self.wTree.get_widget('video')
  24         self.drawingarea.connect('realize', self.on_video_realized)
  25
  26         self.spinner = self.wTree.get_widget('video_spin')
  27         #self.spinner.connect('change-value', self.on_)
  28
  29         self.seeker = self.wTree.get_widget('video_seeker')
  30         self.seeker.set_range(0, 100)
  31         self.seeker.set_increments(1, 10)
  32         self.seeker.connect('change-value', self.on_seeker_change)
  33
  34         self.label = self.wTree.get_widget('video_label')
  35
  36         self.is_playing = False
  37
  38     def play(self, uri):
  39         self.playbin.set_property('uri', uri)
  40         self.playbin.set_state(gst.STATE_PLAYING)
  41         self.label.label = 'f';
  42         gobject.timeout_add(100, self.update_slider)
  43         self.is_playing = True
  44
  45     def on_finish(self, bus, message):
  46         self.playbin.set_state(gst.STATE_PAUSED);
  47         self.slider.set_value(0);
  48
  49     def on_video_realized(self, sender):
  50         self.sink.set_xwindow_id(self.drawingarea.window.xid)
  51
  52
  53     def update_slider(self):
  54         if not self.is_playing:
  55             return False # cancel timeout
  56
  57         try:
  58             nanosecs, format = self.playbin.query_position(gst.FORMAT_TIME)
  59             duration_nanosecs, format = self.playbin.query_duration(gst.FORMAT_TIME)
  60
  61             # block seek handler so we don't seek when we set_value()
  62             self.seeker.handler_block_by_func(self.on_seeker_change)
  63
  64             self.seeker.set_range(0, float(duration_nanosecs) / gst.SECOND)
  65             self.seeker.set_value(float(nanosecs) / gst.SECOND)
  66
  67             self.seeker.handler_unblock_by_func(self.on_seeker_change)
  68
  69         except gst.QueryError:
  70             # pipeline must not be ready and does not know position
  71          pass
  72
  73         return True # continue calling every 30 milliseconds
  74
  75
  76     def on_seeker_change(self, slider, a, b):
  77         print 'on_seeker_change'
  78         seek_time_secs = slider.get_value()
  79         self.playbin.seek_simple(gst.FORMAT_TIME, gst.SEEK_FLAG_FLUSH | gst.SEEK_FLAG_KEY_UNIT, seek_time_secs * gst.SECOND)
  80
  81
  82