Multiple pipeline with OpenGL and vaapi elements

Matthew Waters ystreet00 at
Wed Feb 19 12:45:48 PST 2014

On 20/02/14 06:02, adrien_sch wrote:
> Hello guys,
> I wanted to know if it is supported to use openGL and vaapi elements in
> different pipelines ( => with different GMainContext) in a same process.

Ideally, it should work though I haven't tested it.

> The result of my first try is a very buggy program (a lot of SEGFAULT in
> vaapi and opengl, system freeze).

Could you please file a bug about this at with a 
backtrace and an example program or gst-launch line if possible. 
Although your system freezing sounds like an implementation bug lower 
than GStreamer.  What hardware/OS is this on?

> What can I do to resolve these issues (if supported) ?
> Thx in advance for you help.
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