<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Unfortunately, it doesn't work out of the box for me on Arch. Here is the output^</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">glcontext gstglcontext.c:337:gst_gl_context_new: creating a context for display <gldisplayegl0>, user choice:(null)</font><br></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">glwindow gstglwindow.c:251:gst_gl_window_new: creating a window, user choice:gbm<br></font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">glwindow gstglwindow.c:293:gst_gl_window_new: Could not create window. user specified gbm, creating dummy window<br></font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">glcontext gstglcontext.c:1240:gst_gl_context_create_thread:<glcontextegl23> Attempting to create opengl context. user chosen api(s) (any), compiled api support (opengl opengl3 gles2) display api (opengl opengl3 gles2)<br></font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">glcontext gstglcontext.c:1244:gst_gl_context_create_thread:<glcontextegl23> Failed to create context<br></font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">glcontext gstglcontext.c:1046:gst_gl_context_create:<glcontextegl23> gl thread created<br></font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">glmixer gstglbasemixer.c:176:_get_gl_context:<mixer> error: Failed to initialize egl: EGL_NOT_INITIALIZED<br></font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif"><br></font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif">Did Arch maintainers miss some compile-time flags or have I done something wrong?</font></div></div><div class="gmail_extra"><br><div class="gmail_quote">2018-03-23 15:30 GMT+03:00 Alexander Yanin <span dir="ltr"><<a href="mailto:sashayanin@gmail.com" target="_blank">sashayanin@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Thank you, Matt. I will try, hope this should work with 1.14</div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">2018-03-23 15:25 GMT+03:00 Matthew Waters <span dir="ltr"><<a href="mailto:ystreet00@gmail.com" target="_blank">ystreet00@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div text="#000000" bgcolor="#FFFFFF"> <div class="m_-2593799522323158629m_-1315543994340869812moz-cite-prefix">It should work out of the box if you don't already have an X11/Wayland display server running. It's chosen after X11/Wayland connections fail.<br> <br> You can also force it by setting the environment variable GST_GL_WINDOW=gbm<br> <br> e.g. GST_DEBUG=gl*:4 GST_GL_WINDOW=gbm gst-launch-1.0 videotestsrc ! glupload ! gleffects_squeeze ! glcolorconvert ! gldownload ! pngenc ! filesink location=test.png<br> <br> Cheers<br> -Matt<div><div class="m_-2593799522323158629h5"><br> <br> On 23/03/18 22:57, Alexander Yanin wrote:<br> </div></div></div><div><div class="m_-2593799522323158629h5"> <blockquote type="cite"> <div dir="ltr"> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Thanks! Fine, what I need to do to make it work on Intel Kabylake with Mesa and without neither xorg nor wayland? Would it work right out of the box or should I perform some additional actions to make it run?</div> </div> <div class="gmail_extra"><br> <div class="gmail_quote">2018-03-23 14:50 GMT+03:00 Matthew Waters <span dir="ltr"><<a href="mailto:ystreet00@gmail.com" target="_blank">ystreet00@gmail.com</a>></span>:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div text="#000000" bgcolor="#FFFFFF"> <div class="m_-2593799522323158629m_-1315543994340869812m_-6003119710050989387moz-cite-prefix">Accessing the GPU without a windowing system is something that is very specific to every driver/hardware combination. We support (with 1.14) one method using kms and a libgbm compatible driver which are used by all of the Mesa drivers. Some other embedded systems (rpi, imx6) have other ways. That nvidia blog post you've linked contains references to <a href="https://www.khronos.org/registry/EGL/extensions/EXT/EGL_EXT_device_query.txt" target="_blank">EGL_EXT_device_query</a> which I guess is nvidia's way of performing a similar thing and such a method could be added to the GStreamer GL library and plugins.<br> <br> Cheers<br> -Matt <div> <div class="m_-2593799522323158629m_-1315543994340869812h5"><br> <br> On 23/03/18 21:10, Alexander Yanin wrote:<br> </div> </div> </div> <blockquote type="cite"> <div> <div class="m_-2593799522323158629m_-1315543994340869812h5"> <div dir="ltr"> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi!</div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br> </div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Is it possible to use GL elements (like glvideomixer, glupload, gleffects, etc) without anything like Wayland, Xorg, etc? In particular, I want to use glvideomixer instead of compositor on a server without any display attached. I heard about a possible workaround using frame buffer, but I didn't manage to find a way to use glvideomixer without xorg or wayland. It crushes on context initialization.</div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br> </div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Here is the output:</div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br> </div> <div class="gmail_default"><font face="arial, helvetica, sans-serif">glmixer gstglbasemixer.c:217:_get_gl_c<wbr>ontext:<mixer> error: Failed to initialize egl: EGL_NOT_INITIALIZED</font><br> </div> <div class="gmail_default"><font face="arial, helvetica, sans-serif">glwindow gstglwindow.c:285:gst_gl_windo<wbr>w_new: Could not create window. user specified (null), creating dummy window<br> </font></div> <div class="gmail_default"><font face="arial, helvetica, sans-serif">glcontext gstglcontext.c:1235:gst_gl_con<wbr>text_create_thread:<glcontexte<wbr>gl48> Failed to create context</font></div> <div class="gmail_default"><font face="arial, helvetica, sans-serif"><br> </font></div> <div class="gmail_default"><font face="arial, helvetica, sans-serif">So, is there a way to bypass this issue without using xorg or wayland? I heard that it is possible to initialize EGL without xorg [1]. Is it possible to use this approach within gl elements?</font></div> <div class="gmail_default"><font face="arial, helvetica, sans-serif"><br> </font></div> <div class="gmail_default"><font face="arial, helvetica, sans-serif">[1] - <a href="https://devblogs.nvidia.com/egl-eye-opengl-visualization-without-x-server/" target="_blank">https://devblogs.nvidia.com/<wbr>egl-eye-opengl-visualization-w<wbr>ithout-x-server/</a></font></div> </div> <br> <fieldset class="m_-2593799522323158629m_-1315543994340869812m_-6003119710050989387mimeAttachmentHeader"></fieldset> <br> </div> </div> <pre>______________________________<wbr>_________________ gstreamer-devel mailing list <a class="m_-2593799522323158629m_-1315543994340869812m_-6003119710050989387moz-txt-link-abbreviated" href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesk<wbr>top.org</a> <a class="m_-2593799522323158629m_-1315543994340869812m_-6003119710050989387moz-txt-link-freetext" href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">https://lists.freedesktop.org/<wbr>mailman/listinfo/gstreamer-dev<wbr>el</a> </pre> </blockquote> </div> </blockquote> </div> </div> </blockquote> </div></div></div> </blockquote></div><br></div> </div></div></blockquote></div><br></div>