Dynamic image overlay

Zhang, Zheng zheng.zhang at intel.com
Wed Mar 28 19:29:53 PDT 2012

u still have the access confliction, try to use lock before operation.


-----Original Message-----
From: gstreamer-devel-bounces+zheng.zhang=intel.com at lists.freedesktop.org [mailto:gstreamer-devel-bounces+zheng.zhang=intel.com at lists.freedesktop.org] On Behalf Of kususe
Sent: Thursday, March 29, 2012 2:26 AM
To: gstreamer-devel at lists.freedesktop.org
Subject: Dynamic image overlay

I wanna realize a dynamic image overlay. 
I think the best way to perform this is using coglogoinsert plugin. 
The idea is creating an image saving it with matlab and displaying it on screen, repeating this operatition for an amount of time.
I imagine this idea could cause some accessing problem to the same file by two different thread (my one and the plugin one).
So I decided to create two images: in the first step I save the first figure displaying it; in the second I save the second figure, displaying it; again I save the first one, displaying it and then the second one displaying it.
but it causes a segfault.
Can you have suggestions?

Thanks in advance,

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