Modern equivalent of --with-egl-window-system=rpi ?

[Michael Tyson]

Thanks Julien!

No go, I’m afraid - it reports "ERROR: from element /GstPipeline:pipeline0/GstGLImageSink:glimagesink0: Cannot create context with the user requested api (gles2).  We have support for (opengl opengl3)”

Trying with the two suggested apis gives the same error as previously (“EGL_BAD_PARAMETER”), unsurprisingly.

I did notice that the configure script reports "checking whether it is possible to include both GL and GLES2 headers… no”, and then disabled GLES2 ("Disabling GL|ES 2.0 support”).  Adding "NEED_GLES2=yes” to configure.ac:719 causes configure to disable GL instead ("Disabling Desktop GL support”), but unfortunately the build fails on target libgstgl_dispmanx_la-gstglwindow_dispmanx_egl.lo with the following: http://goo.gl/iQ5ngZ ("error: conflicting types for ‘GLintptr’”, etc).

Any ideas for an immediate fix?

Cheers,
Michael



On 5 Sep 2014, at 6:33 pm, Julien Isorce <julien.isorce at gmail.com> wrote:

> Hi,
> 
> You also need to set GST_GL_API=gles2
> 
> See http://cgit.freedesktop.org/gstreamer/gst-plugins-bad/commit/gst-libs/gst/gl?id=707cb5800490a654e16ca683e104c1fb9ea3eb87
> 
> If you want to avoid setting those env var, you can disable unwanted support at build time, for example:  --disable-opengl --disable-wayland --disable-x11 --disable-glx ...
> and just enable --enable-gles2 --enable--dispmanx --enable-egl ...
> 
> On rpi I think you may just need to uninstall mesa packages, and just install the rpi bcm dev packages that put egl/gles2 headers in /opt/vc/include directory (can't remember the exact package name). Also if you may want to uninstall wayland package to avoid building the gstgl support (so no need to pass --disable-wayland explicitly)
> 
> Cheers
> Julien
> 
> 
> On 5 September 2014 08:20, Sebastian Dröge <sebastian at centricular.com> wrote:
> On Fr, 2014-09-05 at 17:00 +1000, Michael Tyson wrote:
> > Cheers for the reply Sebastian!
> >
> > Alas, nope - here’s what it says ("Failed to bind OpenGL API: EGL_BAD_PARAMETER”):
> > [...]
> 
> Can you file a bug about that at http://bugzilla.gnome.org against
> GStreamer, and attach a debug log with GST_DEBUG=*gl*:6 ?
> 
> --
> Sebastian Dröge, Centricular Ltd - http://www.centricular.com
> Expertise, Straight from the Source
> 
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