Python Playlist.play方法代码示例

# 需要导入模块: from playlist import Playlist [as 别名]
# 或者: from playlist.Playlist import play [as 别名]
class PluginInterface(plugin.DaemonPlugin):
    """
    A plugin to start a screensaver when freevo has been inactive in a menu
    for a long time. There are 4 basic types and one of the types has two
    subtypes. The types are xscreensaver, ssr, fxd, and script. The fxd type
    has two subtypes: one for movies and one for slideshows. The
    xsccreensaver type will only work if you are using an Xserver.

    Here is an example xscreensaver type. You must provide the paths to
    your xscreensaver and xscreensaver-command programs.
    | plugin.activate('freevoscreensaver', \
    | args=('xscreensaver','/usr/bin/xscreensaver','/usr/bin/xscreensaver-command',))

    Here is a script type example. Basically you write a  start and stop
    script you wish to use for a screensaver. This is a catchall for people
    wanting a very specific saver with a specific config.
    | plugin.activate('freevoscreensaver', \
    | args=('script','/usr/local/bin/screensaverstart','/usr/local/bin/screensaverstop',))

    Shown below is and example of a ssr type of screensaver. It takes an ssr
    file which refers to a bunch of pictures and displays them repeatedly.
    | plugin.activate('freevoscreensaver', args=('ssr','/usr/local/freevo_data/Images/blah.ssr',))

    Here is an image type fxd. Very similar to the ssr but taking the fxd
    playlist approach to showing the images. This way you can set random if
    you want it for example.
    | plugin.activate('freevoscreensaver', args=('fxd','/usr/local/freevo_data/Images/saver.fxd','image',))

    A video version of the fxd type screensaver. It repeatedly shows a movie
    in a loop with no sound.
    | plugin.activate('freevoscreensaver', args=('fxd','/usr/local/freevo_data/Movies/saver.fxd','video',))
    """

    def __init__(self, sstype, ssarg1, ssarg2=None):
        plugin.DaemonPlugin.__init__(self)
        self.plugin_name = 'SCREENSAVER'
        self.event_listener = TRUE
        self.poll_menu_only = TRUE
        self.last_event = 0
        self.screensaver_showing = FALSE
        self.vitem = None
        self.pl = None
        self.menuw = None
        self.poll_interval = config.SSAVER_POLL
        self.saver_delay = config.SSAVER_DELAY
        self.saver_type = sstype
        self.arg1 = ssarg1
        self.arg2 = ssarg2
        self.osd  = osd.get_singleton()

    def config(self):
        return [ ('SSAVER_DELAY', 300, '# of seconds to wait to start saver.'),
                 ('SSAVER_POLL', 600, '# of seconds to wait between polling.') ]

    def eventhandler(self, event=None, menuw=None, arg=None):
        """
        eventhandler to handle the events. Always return false since we
        are just a listener and really can't send back true.
        """
        logger.log( 9, 'Saver saw %s', event.name)
        if menuw:
            self.menuw = menuw

        if event.name == 'SCREENSAVER_START':
            self.start_saver()
            return FALSE

        if event.name == 'SCREENSAVER_STOP' and self.screensaver_showing :
            self.stop_saver()
            return FALSE

        # gotta ignore these or video screensavers shutoff before they begin
        if event.name == 'VIDEO_START' or event.name == 'PLAY_START' or \
            event.name == 'VIDEO_END' or event.name == 'PLAY_END':
            return FALSE

        if self.screensaver_showing :
            self.stop_saver()

        if plugin.isevent(event) != 'IDENTIFY_MEDIA':
            self.last_event = time.time()

        return FALSE

    def poll(self):
        logger.debug('Saver got polled %f', time.time())
        if not self.screensaver_showing and (time.time() - self.last_event) > self.saver_delay :
            rc.post_event(em.Event('SCREENSAVER_START'))

    def start_saver (self):
        logger.debug('start screensaver')
        self.screensaver_showing = TRUE
        if self.saver_type == 'xscreensaver':
            os.system('%s -no-splash &' % self.arg1)
            os.system('sleep 5 ; %s -activate' % self.arg2)
        elif self.saver_type == 'script':
            os.system('%s' % self.arg1)
        elif self.saver_type == 'ssr':
            self.pl = Playlist('ScreenSaver', playlist=self.arg1, display_type='image', repeat=True)
            self.pl.play(menuw=self.menuw)
#.........这里部分代码省略.........