diff options
Diffstat (limited to 'src/intro/glive.py')
| -rw-r--r-- | src/intro/glive.py | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/src/intro/glive.py b/src/intro/glive.py deleted file mode 100644 index a875e48..0000000 --- a/src/intro/glive.py +++ /dev/null @@ -1,196 +0,0 @@ -# -*- Mode: Python -*- -# vi:si:et:sw=4:sts=4:ts=4 - -import gtk -import pygtk -pygtk.require('2.0') -import sys - -import pygst -pygst.require('0.10') -import gst -import gst.interfaces - -import gobject -gobject.threads_init() - -class Glive(gobject.GObject): - __gsignals__ = { - 'new-picture': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([gobject.TYPE_PYOBJECT])), - 'sink': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([gobject.TYPE_PYOBJECT])) - } - - def __init__(self, parent, width, height): - gobject.GObject.__init__(self) - self._parent = parent - - #check out the halfpipe, d00d. - self.pipeline = gst.Pipeline() - - self.v4l2src = gst.element_factory_make("v4l2src", "v4l2src") - self.t = gst.element_factory_make("tee", "tee") - self.t_src_pad = self.t.get_request_pad( "src%d" ) - self.vscale = gst.element_factory_make("videoscale", "videoscale") - self.ximagesink = gst.element_factory_make("ximagesink", "ximagesink") - - self.pipeline.add(self.v4l2src) - self.pipeline.add(self.t) - self.pipeline.add(self.vscale) - self.pipeline.add(self.ximagesink) - - self.v4l2src.link(self.t) - - videoscale_structure = gst.Structure("video/x-raw-rgb") - videoscale_structure['width'] = width - videoscale_structure['height'] = height - videoscale_structure['bpp'] = 16 - videoscale_structure['depth'] = 16 - videoscale_caps = gst.Caps(videoscale_structure) - self.t_src_pad.link(self.vscale.get_pad("sink")) - self.vscale.link(self.ximagesink, videoscale_caps) - #self.vscale.link(self.ximagesink) - - self.queue = gst.element_factory_make("queue", "queue") - self.queue.set_property("leaky", True) - self.queue.set_property("max-size-buffers", 1) - self.qsrc = self.queue.get_pad( "src" ) - self.qsink = self.queue.get_pad("sink") - self.ffmpeg = gst.element_factory_make("ffmpegcolorspace", "ffmpegcolorspace") - self.jpgenc = gst.element_factory_make("jpegenc", "jpegenc") - self.filesink = gst.element_factory_make("fakesink", "fakesink") - self.filesink.connect( "handoff", self.copyframe ) - self.filesink.set_property("signal-handoffs", True) - self.pipeline.add(self.queue, self.ffmpeg, self.jpgenc, self.filesink) - - #only link at snapshot time - #self.t.link(self.queue) - self.queue.link(self.ffmpeg) - self.ffmpeg.link(self.jpgenc) - self.jpgenc.link(self.filesink) - self.exposureOpen = False - - self._bus = self.pipeline.get_bus() - self._CONNECT_SYNC = -1 - self._CONNECT_MSG = -1 - self.doPostBusStuff() - - def copyframe(self, fsink, buffer, pad, user_data=None): - #for some reason, we get two back to back buffers, even though we - #ask for only one. - if (self.exposureOpen): - self.exposureOpen = False - piccy = gtk.gdk.pixbuf_loader_new_with_mime_type("image/jpeg") - piccy.write( buffer ) - piccy.close() - pixbuf = piccy.get_pixbuf() - del piccy - - self.t.unlink(self.queue) - self.queue.set_property("leaky", True) - - gobject.idle_add(self.loadPic, pixbuf) - - def loadPic( self, pixbuf ): - self.emit('new-picture', pixbuf) - - def takeSnapshot( self ): - if (self.exposureOpen): - return - else: - self.exposureOpen = True - self.t.link(self.queue) - - def doPostBusStuff(self): - self._bus.enable_sync_message_emission() - self._bus.add_signal_watch() - self._CONNECT_SYNC = self._bus.connect('sync-message::element', self.on_sync_message) - self._CONNECT_MSG = self._bus.connect('message', self.on_message) - - def on_sync_message(self, bus, message): - if message.structure is None: - return - if message.structure.get_name() == 'prepare-xwindow-id': - self.emit('sink', message.src) - message.src.set_property('force-aspect-ratio', True) - - def on_message(self, bus, message): - t = message.type - if (t == gst.MESSAGE_ERROR): - err, debug = message.parse_error() - if (self.on_eos): - self.on_eos() - self._playing = False - elif (t == gst.MESSAGE_EOS): - if (self.on_eos): - self.on_eos() - self._playing = False - - def on_eos( self ): - pass - - def stop(self): - self.pipeline.set_state(gst.STATE_NULL) - - def play(self): - self.pipeline.set_state(gst.STATE_PLAYING) - - def pause(self): - self.pipeline.set_state(gst.STATE_PAUSED) - - -class LiveVideoSlot(gtk.EventBox): - __gsignals__ = { - 'pixbuf': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([gobject.TYPE_PYOBJECT])), - } - - def __init__(self, width, height): - gtk.EventBox.__init__(self) - - self.imagesink = None - self.playa = None - self._width = width - self._height = height - - self.unset_flags(gtk.DOUBLE_BUFFERED) - self.connect('focus-in-event', self.focus_in) - self.connect('focus-out-event', self.focus_out) - self.connect("button-press-event", self._button_press_event_cb) - self.connect("expose-event", self._expose_event_cb) - - def _expose_event_cb(self, widget, event): - if not self.playa: - self.playa = Glive(self, self._width, self._height) - self.playa.connect('new-picture', self._new_picture_cb) - self.playa.connect('sink', self._new_sink_cb) - - def _new_picture_cb(self, playa, pixbuf): - self.emit('pixbuf', pixbuf) - - def _new_sink_cb(self, playa, sink): - if (self.imagesink != None): - assert self.window.xid - self.imagesink = None - del self.imagesink - self.imagesink = sink - self.imagesink.set_xwindow_id(self.window.xid) - - def _button_press_event_cb(self, widget, event): - self.takeSnapshot() - - def focus_in(self, widget, event, args=None): - self.play() - - def focus_out(self, widget, event, args=None): - self.stop() - - def play( self ): - self.playa.play() - - def pause( self ): - self.playa.pause() - - def stop( self ): - self.playa.stop() - - def takeSnapshot( self ): - self.playa.takeSnapshot() |