Dear developer, I'm not sure whether this step is useful (https://trac.pjsip.org/repos/wiki/Video_Users_Guide#sdl-opengl). I have followed the guide (https://trac.pjsip.org/repos/wiki/Getting-Started/Autoconf#VideoSupportfor2.0andabove) to build my pjsip. But when I run the pjsua, I cannot find the SDL openGL renderer. Is this function has been canceled now? Or I have ignored some important things. The attachment is the configure of my pjsip.   Please help me! By the way, your website has some questions, I can not open the Mailing List directly. It's 404.  Regards, Hu