Hi, And if using gst-launch ? ( v4l2src ! ... ! glupload ! glfilterglass ! glimagesink ) Julien <div class="gmail_quote">2010/3/3 Alexandre Quessy <<a href="mailto:alexandre@quessy.net">alexandre@quessy.net</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hello everyone, I have worked on a prototype of a pipeline that uploads a live video feed to an OpenGL texture and shares it with a context in SDL, starting from the tests/examples/sdlshare.c file in gst-plugins-gl. The source code can be found at <a href="http://bitbucket.org/aalex/toonloop1/src/tip/src/sdlshare.cpp" target="_blank">http://bitbucket.org/aalex/toonloop1/src/tip/src/sdlshare.cpp</a> and can be compiled with the autotools. (./autogen.sh && ./configure && make) It seems like the mesured framerate is consistently pretty slow. I get an average of 12 FPS on a Dual 2.2 GHz with the latest Ubuntu and a decent Nvidia graphic card. I obtained 30 FPS on a faster machine with a better V4L2-supported video capture card. Does someone have suggestions on how I could overcome this ? I would also prefer to have a framerate that's faster than the capture card's. 29.97 FPS is what NTSC gives me, whereas most projectors and monitors can do up to 60 FPS. I have tried to set the "sync" property of the fakesink element to FALSE, or TRUE, without success. Any other hint ? -- Alexandre Quessy <a href="http://alexandre.quessy.net/" target="_blank">http://alexandre.quessy.net/</a> ------------------------------------------------------------------------------ Download Intel&#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. <a href="http://p.sf.net/sfu/intel-sw-dev" target="_blank">http://p.sf.net/sfu/intel-sw-dev</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </blockquote></div>