On Thu, Mar 19, 2009 at 12:24 PM, Matteo Landi <matteo.landi@xxxxxxxx> wrote:
no. you really can't call anything except g_idle_add() without taking the gtk thread lock. if you take the lock, you can call gtk_widget_queue_draw() and then the right things will happen.
Hi all,
i'm trying to develop a basic image processing that sources the
frames from the webcam.
Basically the gtk application is composed of three windows:
1 - drawing area displaying modified stream
2 - drawing area displaying the webcam stream (i used an xoverlay
for the link between the gstreamer videosink and the drawing area)
3 - box containing settings for the webcam stream
I have a gst object that everytime it has a new frame, launch a callback
function. Inside this method i make the image process, and save the
result inside a gdk_pixbuff. Once the process is terminated, inside the
function, i call gdk_draw_pixbuf over the first drawing area. Is it correct to
draw over drawing areas from gstreamer callbacks?
no. you really can't call anything except g_idle_add() without taking the gtk thread lock. if you take the lock, you can call gtk_widget_queue_draw() and then the right things will happen.
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