<html> <head> <style></style> </head> <body class='hmmessage'> I see a *very* strange behavior of a function I've written. I get data's for spectral analysis from either (1) a mic, or (2) a sound file, or (3) from from jack input. Then the values of the spectrum are send to a function that diplay it on a 3d graph (with openGL). I have made possible to disable jack support  : with a define, jack's code is not included. The very strange behavior is this : when jack is enabled, everything works fine; when jack is disabled, displaying data from source is ok, BUT NOT FROM AUDIO FILE, although these 2 path (input from audio file and input from jack) are not related to each other...). When this happens, the audio file is played; i can hear it, but it seems that no messages are passed to the message handler that result in displaying the values of the sprectrum... Everything is declared like this:         AUDIOFREQ = 44100;     int interval = 100000000;     GstElement *src, *dec, *audioconvert, *conv, *spectrum, *sink;     GstBus *bus;     GstCaps *caps;     GstPad *audiopad;     GstStateChangeReturn ret; // pipeline is initialized as a global variable since it is necessary in many other functions //Then here are the function to play the sound :     gst_init (NULL, NULL);     loop = g_main_loop_new(NULL, FALSE);     playing = 1;                 if (typeSource == 0) { // source == microphone         pipeline = gst_pipeline_new ("pipeline");             bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));         gst_bus_add_watch(bus, message_handler, NULL);         gst_object_unref(bus);         src = gst_element_factory_make ("alsasrc", "src");         audioconvert = gst_element_factory_make ("audioconvert", NULL);         g_assert (audioconvert);         spectrum = gst_element_factory_make ("spectrum", "spectrum");         g_object_set (G_OBJECT (spectrum), "bands", spect_bands, "threshold", -80, "interval", interval, NULL);         sink = gst_element_factory_make ("fakesink", "sink");         gst_bin_add_many (GST_BIN (pipeline), src, audioconvert, spectrum, sink, NULL);         caps = gst_caps_new_simple ("audio/x-raw-int", "rate", G_TYPE_INT, AUDIOFREQ, NULL);             if (!gst_element_link (src, audioconvert) ||                 !gst_element_link_filtered (audioconvert, spectrum, caps) ||                 !gst_element_link (spectrum, sink)) {                 fprintf (stderr, "can't link elements\n");                 exit (1);                 }         gst_caps_unref (caps);         ret = gst_element_set_state (pipeline, GST_STATE_PLAYING);             if (ret == GST_STATE_CHANGE_FAILURE) {                 g_print ("Failed to start up pipeline!\n");                 }         g_main_loop_run (loop);         gst_element_set_state (pipeline, GST_STATE_NULL);         gst_object_unref(pipeline);     } else if (typeSource == 1) { // source == file read from disk         int positionTimeout = 0, seekTimeout = 0;         pipeline = gst_pipeline_new ("pipeline");         bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));         gst_bus_add_watch (bus, message_handler, NULL);         gst_object_unref (bus);         src = gst_element_factory_make ("filesrc", "source");         g_object_set (G_OBJECT (src), "location", sFile, NULL);         dec = gst_element_factory_make ("decodebin", "decoder");         g_signal_connect (dec, "new-decoded-pad", G_CALLBACK (cb_newpad), NULL);         spectrum = gst_element_factory_make ("spectrum", "spectrum");         g_object_set (G_OBJECT (spectrum), "bands", spect_bands, "threshold", -80,             "message", TRUE, "message-phase", TRUE, "interval", interval, NULL);         gst_bin_add_many (GST_BIN (pipeline), src, dec, NULL);         gst_element_link (src, dec);         audio = gst_bin_new ("audiobin");         conv = gst_element_factory_make ("audioconvert", "aconv");         audiopad = gst_element_get_static_pad (conv, "sink");         sink = gst_element_factory_make ("alsasink", "sink");         gst_bin_add_many (GST_BIN (audio), conv, spectrum, sink, NULL);         gst_element_link_many (conv, spectrum, sink, NULL);         gst_element_add_pad (audio,         gst_ghost_pad_new ("sink", audiopad));         gst_object_unref (audiopad);         gst_bin_add (GST_BIN (pipeline), audio);                 g_timeout_add (200, (GSourceFunc) cb_print_position, pipeline);         gst_element_set_state (pipeline, GST_STATE_PLAYING);         g_timeout_add (101, (GSourceFunc) seek_to_time, pipeline);         g_main_loop_run (loop);         gst_element_set_state (pipeline, GST_STATE_NULL);         gst_object_unref (GST_OBJECT (pipeline));         g_source_remove(positionTimeout);         g_source_remove(seekTimeout);         printf("stop playing\n");         filenames = filenames->next;         getFileName();            }     else if (typeSource == 2) //source == JACK     { #ifdef JACK // this include or not the code for jack's support         pipeline = gst_pipeline_new ("pipeline");         bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));         gst_bus_add_watch(bus, message_handler, NULL);         gst_object_unref(bus);         jack_client_t *src_client;         jack_status_t status;         src_client = jack_client_open ("src_client", JackNoStartServer, &status); // create jack clients         if (src_client == NULL) {             if (status & JackServerFailed){                 GtkWidget *pAbout;                 //gchar *sSite = "";                 pAbout = gtk_message_dialog_new (GTK_WINDOW(mainWindow),                     GTK_DIALOG_MODAL,                     GTK_MESSAGE_WARNING,                     GTK_BUTTONS_OK,                     "JACK server not running");                 gtk_dialog_run(GTK_DIALOG(pAbout));                      gtk_widget_destroy(pAbout);                 SDL_Quit();                 playing = 0;                 }             else {                 GtkWidget *pAbout;                 gchar *sSite = "";                 pAbout = gtk_message_dialog_new (GTK_WINDOW(mainWindow),                     GTK_DIALOG_MODAL,                     GTK_MESSAGE_WARNING,                     GTK_BUTTONS_OK,                     "jack_client_open() failed %s",                     sSite);                 gtk_dialog_run(GTK_DIALOG(pAbout));                      gtk_widget_destroy(pAbout);                 SDL_Quit();                 exit(1);                 }                          }         src = gst_element_factory_make ("jackaudiosrc", NULL);         sink = gst_element_factory_make ("fakesink", NULL);         spectrum = gst_element_factory_make ("spectrum", "spectrum");         g_object_set (G_OBJECT (spectrum), "bands", spect_bands, "threshold", -80, "interval", interval, NULL);         gst_bin_add_many (GST_BIN (pipeline), src, spectrum, sink, NULL);             if (!gst_element_link (src, spectrum) ||                 !gst_element_link (spectrum, sink)) {             fprintf (stderr, "can't link elements\n");             exit (1);             }         gst_element_set_state(pipeline, GST_STATE_PLAYING);         g_main_loop_run (loop);         gst_element_set_state (pipeline, GST_STATE_NULL);         gst_object_unref(pipeline);         #endif     } Actually I have put a counter in the 'message handler' that is supposed to be called; when I have problems, i can see that the counter stop after 48 calls..... This is REALLY unbelivable, since the 3 parts of the functions (analyse from mic or from file or from jack) have completely separate path........ Wold someone have a clue...? Victor -- View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/very-strange-behavior-related-to-jack-support-tp3469041p3469041.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/very-strange-behavior-related-to-jack-support-tp3469041p3469041.html</a> Sent from the GStreamer-devel mailing list archive at Nabble.com. </body> </html>