vaapisink overlay

[Víctor M. Jáquez L.]

On 08/07/16 at 04:11am, imeshns wrote:
> Thanks for reply. 
> I called gst_element_set_state in g_idle_add() but nothing changed.
> In previous version of my code I had error:
> 
> "CRITICAL **: gst_vaapi_window_new_internal: assertion 'width > 0' failed".
> 
> What does it mean? Maybe I have to change manually size of vaapi window
> before I call PLAY. But where and how? Or maybe you're right. There is a bug
> in gstreamer-vaapi.
> Any sugestions?
> Thanks.

Ah!

The assignation of the vaapi window inside a drawing area is when you call
gst_video_overlay_set_window_handle(). And you call it when you receive the
realize callback. But in that moment, the widget, doesn't have a geometry, so
vaapisink cannot be created because width == 0.

What you have to do in your code is to save the XID in a temporal variable,
and call gst_video_overlay_set_window_handle(), in play(), before
gst_element_set_state().

A solution in vaapisink is to delay the window binding until it is going to be
used for real.

Can you file a bug in bugzilla for gstreamer-vaapi, please?

vmjl


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