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Diffstat (limited to 'TurtleArt/tagplay.py')
| -rw-r--r-- | TurtleArt/tagplay.py | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/TurtleArt/tagplay.py b/TurtleArt/tagplay.py new file mode 100644 index 0000000..5c86f62 --- /dev/null +++ b/TurtleArt/tagplay.py @@ -0,0 +1,176 @@ +#Copyright (c) 2009, Walter Bender (on behalf of Sugar Labs) + +#Permission is hereby granted, free of charge, to any person obtaining a copy +#of this software and associated documentation files (the "Software"), to deal +#in the Software without restriction, including without limitation the rights +#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +#copies of the Software, and to permit persons to whom the Software is +#furnished to do so, subject to the following conditions: + +#The above copyright notice and this permission notice shall be included in +#all copies or substantial portions of the Software. + +#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +#THE SOFTWARE. + +""" +Video and audio playback + +Based on code snippets from +http://wiki.sugarlabs.org/go/Development_Team/Almanac/GStreamer +""" +import gtk +import pygtk +pygtk.require('2.0') +import pygst +pygst.require('0.10') +import gst +import gst.interfaces +import gobject +gobject.threads_init() + +try: + from sugar.datastore import datastore +except ImportError: + pass + +class Gplay: + + def __init__(self): + self.window = None + self.playing = False + + self.player = gst.element_factory_make("playbin", "playbin") + xis = gst.element_factory_make("xvimagesink", "xvimagesink") + self.player.set_property("video-sink", xis) + bus = self.player.get_bus() + bus.enable_sync_message_emission() + bus.add_signal_watch() + self.SYNC_ID = bus.connect('sync-message::element', \ + self._onSyncMessageCb) + + def _onSyncMessageCb(self, bus, message): + if message.structure is None: + return True + if message.structure.get_name() == 'prepare-xwindow-id': + if self.window is None: + return True + self.window.set_sink(message.src) + message.src.set_property('force-aspect-ratio', True) + return True + + def setFile(self, path): + uri = "file://" + str(path) + if (self.player.get_property('uri') == uri): + self.seek(gst.SECOND*0) + return + + self.player.set_state(gst.STATE_READY) + self.player.set_property('uri', uri) + ext = uri[len(uri)-3:] + if (ext == "jpg"): + self.pause() + else: + self.play() + + def queryPosition(self): + #"Returns a (position, duration) tuple" + try: + position, format = self.player.query_position(gst.FORMAT_TIME) + except: + position = gst.CLOCK_TIME_NONE + + try: + duration, format = self.player.query_duration(gst.FORMAT_TIME) + except: + duration = gst.CLOCK_TIME_NONE + return (position, duration) + + def seek(self, time): + event = gst.event_new_seek(1.0,\ + gst.FORMAT_TIME,\ + gst.SEEK_FLAG_FLUSH|gst.SEEK_FLAG_ACCURATE,\ + gst.SEEK_TYPE_SET,\ + time,\ + gst.SEEK_TYPE_NONE, 0) + res = self.player.send_event(event) + if res: + self.player.set_new_stream_time(0L) + + def pause(self): + self.playing = False + self.player.set_state(gst.STATE_PAUSED) + + def play(self): + self.playing = True + self.player.set_state(gst.STATE_PLAYING) + + def stop(self): + self.playing = False + self.player.set_state(gst.STATE_NULL) + # self.nextMovie() + + def get_state(self, timeout=1): + return self.player.get_state(timeout=timeout) + + def is_playing(self): + return self.playing + +class PlayVideoWindow(gtk.Window): + def __init__(self): + gtk.Window.__init__(self) + self.imagesink = None + self.unset_flags(gtk.DOUBLE_BUFFERED) + self.set_flags(gtk.APP_PAINTABLE) + + def set_sink(self, sink): + if (self.imagesink != None): + assert self.window.xid + self.imagesink = None + del self.imagesink + + self.imagesink = sink + if self.window is not None: + self.imagesink.set_xwindow_id(self.window.xid) + +def play_audio(lc, filepath): + print "loading audio id: " + filepath + if lc.gplay == None: + lc.gplay = Gplay() + lc.gplay.setFile("file:///" + filepath) + +def play_movie_from_file(lc, filepath, x, y, w, h): + if lc.gplay == None: + lc.gplay = Gplay() + # wait for current movie to stop playing + if lc.gplay.is_playing: + print "already playing..." + lc.gplay.setFile("file:///" + filepath) + if lc.gplay.window == None: + gplayWin = PlayVideoWindow() + lc.gplay.window = gplayWin + gplayWin.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_DIALOG) + gplayWin.set_decorated(False) + if lc.tw.running_sugar: + gplayWin.set_transient_for(lc.tw.activity) + # y position is too high for some reason (toolbox?) adding offset + gplayWin.move(x, y+108) + gplayWin.resize(w, h) + gplayWin.show_all() + + +def stop_media(lc): + if lc.gplay == None: + return + lc.gplay.stop() + if lc.gplay.window != None: + # We need to destroy the video window + # print dir(lc.gplay.window) + lc.gplay.window.destroy() + lc.gplay = None + |