python/gst-player-example.py

   1 #!/usr/bin/env python3
   2 #
   3 # Player - a very simple media player based on GstPlayer
   4 #
   5 # Copyright (C) 2016  Antonio Ospite <ao2@ao2.it>
   6 #
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 import sys
  21 import gi
  22
  23 gi.require_version('Gst', '1.0')
  24 from gi.repository import Gst
  25 Gst.init(None)
  26
  27 gi.require_version('GstPlayer', '1.0')
  28 from gi.repository import GstPlayer
  29
  30 from gi.repository import GObject
  31 GObject.threads_init()
  32
  33
  34 class Player(object):
  35     def __init__(self):
  36         self.player = GstPlayer.Player.new(signal_dispatcher=GstPlayer.PlayerGMainContextSignalDispatcher())
  37         self.player.connect("error", self.error_cb)
  38         self.player.connect("end-of-stream", self.end_of_stream_cb)
  39         self.player.connect("state-changed", self.state_changed_cb)
  40
  41         self.mainloop = GObject.MainLoop()
  42
  43     def end_of_stream_cb(self, player):
  44         self.mainloop.quit()
  45
  46     def error_cb(self, player, error):
  47         print(error)
  48         self.mainloop.quit()
  49
  50     def state_changed_cb(self, player, state):
  51         print(state)
  52
  53     def play(self, filename):
  54         self.player.set_uri(Gst.filename_to_uri(filename))
  55         self.player.play()
  56         self.mainloop.run()
  57
  58     def stop(self):
  59         self.player.stop()
  60         self.mainloop.quit()
  61
  62
  63 def main():
  64     if len(sys.argv) > 1:
  65         player = Player()
  66         try:
  67             player.play(sys.argv[1])
  68         except KeyboardInterrupt:
  69             player.stop()
  70
  71
  72 if __name__ == "__main__":
  73     main()