Cairotextoverlay issue

[Jim]

I'm working with Gstreamer 0.10.36 under embedded Linux (with no windowing
system), coding in C++ using the Qt 4.8.3 library. I ran into a problem that
I hope someone else has seen and can offer some help.

 

I constructed a pipeline that uses an MPEG-2 transport stream file as a
source, feeding into a playbin2 element, with its video sink attached to a
cairotextoverlay element, which in turn is connected to an autovideosink
element. Whenever I stop the video playback by setting the pipeline state to
GST_STATE_NULL or GST_STATE_READY, the most recent frame of the video
remains on the screen.

 

If I remove the cairotextoverlay element from the pipeline then it behaves
as expected by returning to a black screen. The reason this is important to
me is because when the video is stopped, I need to be able to display a Qt
window.

 

It looks like there is a Pango plugin that provides text overlay
functionality for Gstreamer but the BSP (Board Support Package) I'm using
for my development board does not include that.

 

Any guidance would be greatly appreciated.

 

Thanks,

Jim

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20130107/64670884/attachment.html>