Kost... Tks for your help so far... I fixed the problem removing and compiling again the libraries and plug-ins. It seems that I had some problems with the installation. I am gettting a last error mensagem when I am running the spectrum script available in the spectrum plugin page. That is the problem: ./spectrum (spectrum:3124): GLib-GObject-CRITICAL **: g_object_set: assertion `G_IS_OBJECT (object)' failed (spectrum:3124): GStreamer-CRITICAL **: gst_element_link_pads_filtered: assertion `GST_IS_ELEMENT (dest)' failed can't link elements It does seem to have a connection with the other problem... is it a commom problem?? Do you think a should start over again compiling and installing everything??????? <div class="gmail_quote"> On Sun, May 24, 2009 at 10:21 AM, Guilherme <<a href="mailto:grlongo.ireland@gmail.com">grlongo.ireland@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> It is not ;O) But you probably noticed that I was just trying different codes to see if things worked out in here ;O)! The output is this:<div class="im"> pkg-config --cflags --libs gstreamer-0.10 </div> -pthread -I/usr/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -pthread -lgstreamer-0.10 -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lrt -lxml2 -lglib-2.0 It seems that the paths are right.... strange! Tks! ------------------- Guilherme Longo Dept. Eng. da Computação Unaerp Linux User - #484927 *Before Asking <a href="http://www.istf.com.br/?page=perguntas" target="_blank">http://www.istf.com.br/?page=perguntas</a> !- I'd rather die on my feet than live on my knees -!<div><div></div><div class="h5"> Stefan Kost wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Guilherme Raymo Longo schrieb: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Mates, I am having a issue when trying to compile a simple code that should work without problems. I have it running in other machines, but I can't figure out what it might be. </blockquote> what does this print? pkg-config --cflags --libs gstreamer-0.10 Besides the code below does not look like spectrum.c :) Stefan <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> This is the output: bash-3.1# gcc -Wall $(pkg-config --cflags --libs gstreamer-0.10) spectrum.c /tmp/cccrQH9p.o: In function `bus_call': spectrum.c:(.text+0xd): undefined reference to `gst_message_get_type' spectrum.c:(.text+0x64): undefined reference to `gst_message_parse_error' /tmp/cccrQH9p.o: In function `on_pad_added': spectrum.c:(.text+0xdd): undefined reference to `gst_element_get_static_pad' spectrum.c:(.text+0xf1): undefined reference to `gst_pad_link' spectrum.c:(.text+0xff): undefined reference to `gst_object_unref' /tmp/cccrQH9p.o: In function `main': spectrum.c:(.text+0x12b): undefined reference to `gst_init' spectrum.c:(.text+0x17c): undefined reference to `gst_pipeline_new' spectrum.c:(.text+0x194): undefined reference to `gst_element_factory_make' spectrum.c:(.text+0x1ac): undefined reference to `gst_element_factory_make' spectrum.c:(.text+0x1c4): undefined reference to `gst_element_factory_make' spectrum.c:(.text+0x1dc): undefined reference to `gst_element_factory_make' spectrum.c:(.text+0x1f4): undefined reference to `gst_element_factory_make' spectrum.c:(.text+0x26c): undefined reference to `gst_pipeline_get_type' spectrum.c:(.text+0x285): undefined reference to `gst_pipeline_get_bus' spectrum.c:(.text+0x29e): undefined reference to `gst_bus_add_watch' spectrum.c:(.text+0x2ac): undefined reference to `gst_object_unref' spectrum.c:(.text+0x2b4): undefined reference to `gst_bin_get_type' spectrum.c:(.text+0x2de): undefined reference to `gst_bin_add_many' spectrum.c:(.text+0x2ef): undefined reference to `gst_element_link' spectrum.c:(.text+0x302): undefined reference to `gst_element_link_many' spectrum.c:(.text+0x34e): undefined reference to `gst_element_set_state' spectrum.c:(.text+0x38c): undefined reference to `gst_element_set_state' spectrum.c:(.text+0x3a4): undefined reference to `gst_object_get_type' spectrum.c:(.text+0x3bd): undefined reference to `gst_object_unref' collect2: ld returned 1 exit status I have the PKG_CONFIG_PATH duly configured and gstreamer-0.10 libraries are installed. What am I missing here?????? This is the code: #include <gst/gst.h> #include <glib.h> static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer data) { GMainLoop *loop = (GMainLoop *) data; switch (GST_MESSAGE_TYPE (msg)) { case GST_MESSAGE_EOS: g_print ("End of stream\n"); g_main_loop_quit (loop); break; case GST_MESSAGE_ERROR: { gchar *debug; GError *error; gst_message_parse_error (msg, &error, &debug); g_free (debug); g_printerr ("Error: %s\n", error->message); g_error_free (error); g_main_loop_quit (loop); break; } default: break; } return TRUE; } static void on_pad_added (GstElement *element, GstPad *pad, gpointer data) { GstPad *sinkpad; GstElement *decoder = (GstElement *) data; /* We can now link this pad with the vorbis-decoder sink pad */ g_print ("Dynamic pad created, linking demuxer/decoder\n"); sinkpad = gst_element_get_static_pad (decoder, "sink"); gst_pad_link (pad, sinkpad); gst_object_unref (sinkpad); } int main (int argc, char *argv[]) { GMainLoop *loop; GstElement *pipeline, *source, *demuxer, *decoder, *conv, *sink; GstBus *bus; /* Initialisation */ gst_init (&argc, &argv); loop = g_main_loop_new (NULL, FALSE); /* Check input arguments */ if (argc != 2) { g_printerr ("Usage: %s <Ogg/Vorbis filename>\n", argv[0]); return -1; } /* Create gstreamer elements */ pipeline = gst_pipeline_new ("audio-player"); source = gst_element_factory_make ("filesrc", "file-source"); demuxer = gst_element_factory_make ("oggdemux", "ogg-demuxer"); decoder = gst_element_factory_make ("vorbisdec", "vorbis-decoder"); conv = gst_element_factory_make ("audioconvert", "converter"); sink = gst_element_factory_make ("autoaudiosink", "audio-output"); if (!pipeline || !source || !demuxer || !decoder || !conv || !sink) { g_printerr ("One element could not be created. Exiting.\n"); return -1; } /* Set up the pipeline */ /* we set the input filename to the source element */ g_object_set (G_OBJECT (source), "location", argv[1], NULL); /* we add a message handler */ bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); gst_bus_add_watch (bus, bus_call, loop); gst_object_unref (bus); /* we add all elements into the pipeline */ /* file-source | ogg-demuxer | vorbis-decoder | converter | alsa-output */ gst_bin_add_many (GST_BIN (pipeline), source, demuxer, decoder, conv, sink, NULL); /* we link the elements together */ /* file-source -> ogg-demuxer ~> vorbis-decoder -> converter -> alsa-output */ gst_element_link (source, demuxer); gst_element_link_many (decoder, conv, sink, NULL); g_signal_connect (demuxer, "pad-added", G_CALLBACK (on_pad_added), decoder); /* note that the demuxer will be linked to the decoder dynamically. The reason is that Ogg may contain various streams (for example audio and video). The source pad(s) will be created at run time, by the demuxer when it detects the amount and nature of streams. Therefore we connect a callback function which will be executed when the "pad-added" is emitted.*/ /* Set the pipeline to "playing" state*/ g_print ("Now playing: %s\n", argv[1]); gst_element_set_state (pipeline, GST_STATE_PLAYING); /* Iterate */ g_print ("Running...\n"); g_main_loop_run (loop); /* Out of the main loop, clean up nicely */ g_print ("Returned, stopping playback\n"); gst_element_set_state (pipeline, GST_STATE_NULL); g_print ("Deleting pipeline\n"); gst_object_unref (GST_OBJECT (pipeline)); return 0; } Tks so much! ------------------------------------------------------------------------ ------------------------------------------------------------------------------ Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers & brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, & iPhoneDevCamp asthey present alongside digital heavyweights like Barbarian Group, R/GA, & Big Spaceship. <a href="http://www.creativitycat.com" target="_blank">http://www.creativitycat.com</a> ------------------------------------------------------------------------ _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net" target="_blank">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> ------------------------------------------------------------------------------ Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers & brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, & iPhoneDevCamp asthey present alongside digital heavyweights like Barbarian Group, R/GA, & Big Spaceship. <a href="http://www.creativitycat.com" target="_blank">http://www.creativitycat.com</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net" target="_blank">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></div></blockquote></div> -- Guilherme Raymo Longo Software Developer Mob. 087 - 3179008 msn: <a href="mailto:grlongo.ireland@hotmail.com">grlongo.ireland@hotmail.com</a> skype: grlongo.ireland