VASurface to OpengGL Texture and other questions

[Víctor M. Jáquez L.]

On 03/18/15 at 01:59pm, Arnaud Loonstra wrote:
> On 2015-03-18 13:42, Víctor M. Jáquez L. wrote:
> >On 03/18/15 at 08:31am, Jorge Fernandez Monteagudo wrote:
> >>Hi,
> >>
> >>I'm back to my troubles with VAAPI and OpenGL :)
> >>
> >>I've installed the last gstreamer/gst-plugins 1.4.5 and
> >>gstreamer-vaapi-0.5.9 in my Ubuntu 14.04 workstation with vdpau 0.7 and
> >>NVIDIA VDPAU Driver Shared Library 331.113
> >
> >There has been a lot of work on gstreamer-vaapi lately.
> >
> >If you use gstreamer 1.5 (current master) and gstreamer-vaapi 0.5.11
> >(current
> >master too), you'll have to specify EGL/GLES2 in order to use glimagesink:
> >
> >$ GST_GL_WINDOW=x11 GST_GL_API=gles2 GST_GL_PLATFORM=egl \
> >     gst-play-1.0 big_buck_bunny_1080p_h264.mov
> >--videosink=glimagesink --interactive
> >
> >(my hardware doesn't support mpeg4)
> >
> >GLX/OpenGL doesn't support "zero-copy" (emphasis in the quotation marks)
> >with
> >glimagesink, because the display and the GL context is not shared in
> >that case
> >(https://bugzilla.gnome.org/show_bug.cgi?id=745233).
> >
> >But, you can use clutterautovideosink since it works in the same thread,
> >so
> >there's no need to handle the GL context:
> >
> >$ gst-play-1.0 big_buck_bunny_1080p_h264.mov
> >--videosink=clutterautovideosink
> >
> >
> >If you use gstreamer-vaapi 0.5.11 (current master) with gstreamer 1.4 and
> >clutter-gst3, mostly it will work with clutterautovideosink, such as
> >above.
> >
> >With glimagesink there are some issues with the auto-negotiation (the
> >decoder
> >pushes frames without link to the next element) when using playbin, but
> >your
> >crafted pipeline should work, thought "zero-copy" is not guaranteed:
> >
> >$ gst-launch-1.0 filesrc location=big_buck_bunny_1080p_h264.mov !
> >qtdemux ! vaapidecode ! glimagesink
> >
> >
> >vmjl
> 
> So you are saying the recent example:
> http://cgit.freedesktop.org/gstreamer/gst-plugins-bad/tree/tests/examples/gl/sdl/sdlshare2.c
> 
> won't work when the pipeline (l336) uses vaapi elements?

Right now it won't work. Either bug #745233 is fixed or the sldshare2 is
modified to use EGL/GLES2.

vmjl

> 
> Rg,
> 
> Arnaud
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