On Thu, Feb 19, 2015 at 11:18 AM, Mathieu Slabbinck <matty.slabbinck@xxxxxxxxx> wrote: > On Thu, Feb 19, 2015 at 10:08 AM, Sebastian Dröge > <sebastian@xxxxxxxxxxxxxxx> wrote: >> On Do, 2015-02-19 at 09:57 +0100, Mathieu Slabbinck wrote: >> >>> >>Furthermore, I've read that static plugins of gstreamer should be >>> >> loaded with GST_PLUGIN_STATIC_DECLARE & GST_PLUGIN_STATIC_REGISTER. >>> >> >>> >> Using GST_PLUGIN_STATIC_DECLARE() in my c++ app seems to give no >>> >> issues, but using the REGISTER call, that always returns an 'undefined >>> >> reference to gst_plugin_PLUGINNAME_register()' >>> >> I suspect this is related with gst-inspect not finding anything? >>> > >>> > You have to additionally add the plugin libraries (e.g. >>> > libgstvideoconvert.a) to the libraries that are linked into your >>> > application. >>> >>> I've linked my app to lgstreamer, lgstapp. >>> Then using GST_PLUGIN_STATIC_REGISTER(app) still returns undefined >>> reference to `gst_plugin_app_register()' >> >> For app you need to link to libgstapp-1.0 and libgstapp. The former >> being the library that provides appsrc/appsink, the latter being the >> plugin that registers the element factories (and would provide >> gst_plugin_app_register()). > > Thanks for pointing this out. I do notice with grep that > gst_plugin_app_register is located in the > gst_build/lib/gstreamer-1.0/libgstapp.a. > So I've included: > LIBS += -L$$PWD/gst_build/lib -l:libgstapp-1.0.a > LIBS += -L$$PWD/gst_build/lib/gstreamer-1.0 -l:libgstapp.a > > But this still does not resolve the undefined reference error... > Found the last problem with the undefined ref... The GST_PLUGIN_STATIC_DECLARE was not placed in an extern c. That gave the issue. Thanks for your help Sebastian! >> -- >> Sebastian Dröge, Centricular Ltd · http://www.centricular.com >> >> _______________________________________________ >> gstreamer-embedded mailing list >> gstreamer-embedded@xxxxxxxxxxxxxxxxxxxxx >> http://lists.freedesktop.org/mailman/listinfo/gstreamer-embedded >> _______________________________________________ gstreamer-embedded mailing list gstreamer-embedded@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/gstreamer-embedded
