A precisation: it gives me this warning: GLib-GObject-WARNING **: value "TRUE" of type `gboolean' is invalid or out of range for property `always-copy' of type `gboolean' <div class="gmail_quote"> 2010/4/27 djlorenzoc <<a href="mailto:l.centurelli@gmail.com">l.centurelli@gmail.com</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi everybody, I'm trying to implement this pipe in a C program: gst-launch -v v4l2src always-copy=FALSE ! TIVidenc1 codecName=mpeg4enc engineName=encode contiguousInputFrame=TRUE ! rtpmp4vpay pt=96 ! udpsink host=<HOST IP ADDRESS> port=5000 but I can't add 2 options : "always-copy=FALSE" and "port=5000". A part of my program is: ******************************************************************************************************************* #include <gst/gst.h> #include <stdio.h> #include <unistd.h> #include <stdlib.h> #include <glib.h> int main (int argc, char *argv[]) { GstElement *pipeline, *source,*sink,*encoder,*payloader; gst_init (&argc, &argv); pipeline = gst_pipeline_new ("pipe"); source = gst_element_factory_make ("v4l2src", "video_source"); encoder = gst_element_factory_make ("TIVidenc1", "encoder_mpeg4"); payloader= gst_element_factory_make ("rtpmp4vpay", "payloader_mpeg4"); sink = gst_element_factory_make ("udpsink", "output"); g_object_set (G_OBJECT (encoder), "codecName","mpeg4enc", "engineName","encode", NULL); g_object_set (G_OBJECT (sink), "host","192.168.100.229", "port","5000", NULL); .......... After that I add all the plugins to the pipe and link them together... The pipe works, it doesn't give me any error/warning,I can see the video in the receiving host, but the communication port isn't "5000" and I'm sure that the v4l2src's option "always-copy" isn't FALSE because the CPU consume is high (if this option is false the consume is less) What are my errors? Thank you. Best regards. Lorenzo -- View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/v4l2src-plugin-can-t-add-always-copy-FALSE-in-C-pipe-tp2067202p2067202.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/v4l2src-plugin-can-t-add-always-copy-FALSE-in-C-pipe-tp2067202p2067202.html</a> Sent from the GStreamer-devel mailing list archive at Nabble.com. ------------------------------------------------------------------------------ _______________________________________________ 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>