git.sesse.net Git - vlc/blob - bindings/python-ctypes/footer.py

   1 ### Start of footer.py ###
   2
   3 class MediaEvent(ctypes.Structure):
   4     _fields_ = [
   5         ('media_name', ctypes.c_char_p),
   6         ('instance_name', ctypes.c_char_p),
   7         ]
   8
   9 class EventUnion(ctypes.Union):
  10     _fields_ = [
  11         ('meta_type', ctypes.c_uint),
  12         ('new_child', ctypes.c_uint),
  13         ('new_duration', ctypes.c_longlong),
  14         ('new_status', ctypes.c_int),
  15         ('media', ctypes.c_void_p),
  16         ('new_state', ctypes.c_uint),
  17         # Media instance
  18         ('new_position', ctypes.c_float),
  19         ('new_time', ctypes.c_longlong),
  20         ('new_title', ctypes.c_int),
  21         ('new_seekable', ctypes.c_longlong),
  22         ('new_pausable', ctypes.c_longlong),
  23         # FIXME: Skipped MediaList and MediaListView...
  24         ('filename', ctypes.c_char_p),
  25         ('new_length', ctypes.c_longlong),
  26         ('media_event', MediaEvent),
  27         ]
  28
  29 class Event(ctypes.Structure):
  30     _fields_ = [
  31         ('type', EventType),
  32         ('object', ctypes.c_void_p),
  33         ('u', EventUnion),
  34         ]
  35
  36 # Decorator for callback methods
  37 callbackmethod=ctypes.CFUNCTYPE(None, Event, ctypes.c_void_p)
  38
  39 # Example callback method
  40 @callbackmethod
  41 def debug_callback(event, data):
  42     print "Debug callback method"
  43     print "Event:", event.type
  44     print "Data", data
  45
  46 if __name__ == '__main__':
  47     try:
  48         from msvcrt import getch
  49     except ImportError:
  50         def getch():
  51             import tty
  52             import termios
  53             fd=sys.stdin.fileno()
  54             old_settings=termios.tcgetattr(fd)
  55             try:
  56                 tty.setraw(fd)
  57                 ch=sys.stdin.read(1)
  58             finally:
  59                 termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
  60             return ch
  61
  62     @callbackmethod
  63     def end_callback(event, data):
  64         print "End of stream"
  65         sys.exit(0)
  66
  67     if sys.argv[1:]:
  68         instance=Instance()
  69         media=instance.media_new(sys.argv[1])
  70         player=instance.media_player_new()
  71         player.set_media(media)
  72         player.play()
  73
  74         event_manager=player.event_manager()
  75         event_manager.event_attach(EventType.MediaPlayerEndReached, end_callback, None)
  76
  77         def print_info():
  78             """Print information about the media."""
  79             media=player.get_media()
  80             print "State:", player.get_state()
  81             print "Media:", media.get_mrl()
  82             try:
  83                 print "Current time:", player.get_time(), "/", media.get_duration()
  84                 print "Position:", player.get_position()
  85                 print "FPS:", player.get_fps()
  86                 print "Rate:", player.get_rate()
  87                 print "Video size: (%d, %d)" % (player.video_get_width(), player.video_get_height())
  88             except Exception:
  89                 pass
  90
  91         def forward():
  92             """Go forward 1s"""
  93             player.set_time(player.get_time() + 1000)
  94
  95         def one_frame_forward():
  96             """Go forward one frame"""
  97             player.set_time(player.get_time() + long(1000 / (player.get_fps() or 25)))
  98
  99         def one_frame_backward():
 100             """Go backward one frame"""
 101             player.set_time(player.get_time() - long(1000 / (player.get_fps() or 25)))
 102
 103         def backward():
 104             """Go backward 1s"""
 105             player.set_time(player.get_time() - 1000)
 106
 107         def print_help():
 108             """Print help
 109             """
 110             print "Commands:"
 111             for k, m in keybindings.iteritems():
 112                 print "  %s: %s" % (k, (m.__doc__ or m.__name__).splitlines()[0])
 113             print " 1-9: go to the given fraction of the movie"
 114
 115         def quit_app():
 116             """Exit."""
 117             sys.exit(0)
 118
 119         keybindings={
 120             'f': player.toggle_fullscreen,
 121             ' ': player.pause,
 122             '+': forward,
 123             '-': backward,
 124             '.': one_frame_forward,
 125             ',': one_frame_backward,
 126             '?': print_help,
 127             'i': print_info,
 128             'q': quit_app,
 129             }
 130
 131         print "Press q to quit, ? to get help."
 132         while True:
 133             k=getch()
 134             o=ord(k)
 135             method=keybindings.get(k, None)
 136             if method is not None:
 137                 method()
 138             elif o >= 49 and o <= 57:
 139                 # Numeric value. Jump to a fraction of the movie.
 140                 v=0.1*(o-48)
 141                 player.set_position(v)
 142
 143