Originally Posted by ptterb

Ok, so I just spent the ENTIRE day working on this! I got a lot farther, but its just not working quite right. I was able to get the video to play in a separate window, but when i try to put it inside a QWidget on my gui, the screen goes black and starts flashing and I have to restart the phone. Here's the code I have:


class Vid:
def __init__(self, windowId):
self.player = gst.Pipeline("player")
self.source = gst.element_factory_make("v4l2src", "vsource")
self.sink = gst.element_factory_make("autovideosink", "outsink")
self.source.set_property("device", "/dev/video0")
self.scaler = gst.element_factory_make("videoscale", "vscale")
self.window_id = None
self.windowId = windowId

self.player.add(self.source, self.scaler, self.sink)
gst.element_link_many(self.source,self.scaler, self.sink)

bus = self.player.get_bus()
bus.add_signal_watch()
bus.enable_sync_message_emission()
bus.connect("message", self.on_message)
bus.connect("sync-message::element", self.on_sync_message)

def on_message(self, bus, message):
t = message.type
if t == gst.MESSAGE_EOS:
self.player.set_state(gst.STATE_NULL)
elif t == gst.MESSAGE_ERROR:
err, debug = message.parse_error()
print "Error: %s" % err, debug
self.player.set_state(gst.STATE_NULL)

def on_sync_message(self, bus, message):
if message.structure is None:
return
message_name = message.structure.get_name()
if message_name == "prepare-xwindow-id":
win_id = self.windowId
assert win_id
imagesink = message.src
imagesink.set_property("force-aspect-ratio", True)
imagesink.set_xwindow_id(win_id)
def startPrev(self):
self.player.set_state(gst.STATE_PLAYING)
print "should be playing"
vidStream = Vid(wId)
vidStream.startPrev()

where wId is the window id of the widget where I want to video displayed. Any ideas anyone? Thanks!

not sure where my indents went....