Hi all,

I want to export a Clutter stage using GStreamer. I found some references in
the internet [1] and I could get GStreamer to work, but Clutter is giving me
errors when trying to use read_pixels from the stage. The error I'm seeing
is this:

Cogl-glx:ERROR:./cogl-bitmap.c:67:_cogl_bitmap_free: assertion failed:
> (!bmp->mapped)
> Aborted


The program I'm using is a small slideshow demo written in Vala, the code
can be found in [2].

The version I have installed right now of Clutter is (because of Gnome Shell
in Ubuntu): 1.6.18~git20110614.a8af207d-0ubuntu1~11.04~ricotz0, but I had
the same issue with other versions of Clutter.

Any ideas why this is happening?

[1] -
http://guillaume.segu.in/blog/code/216/doing-videos-of-clutter-animations/
[2] - https://gist.github.com/1070632

Regards,
*Alexandre Rosenfeld*
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