Compile with gcc -g to get the debug info ( this will give you line numbers in gdb) and valgrind is another program, not a gdb command :) <div class="gmail_quote">On Wed, May 6, 2009 at 11:09 PM, 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;">Antoine, I have the whole profile of the problem now. Plz, if you could give me a help with that. <div class="im"> (gdb) run Starting program: /home/guilherme/EBA [Thread debugging using libthread_db enabled] </div>[New Thread 0xb7ad09b0 (LWP 3585)] <div class="im"> Program received signal SIGSEGV, Segmentation fault. </div>[Switching to Thread 0xb7ad09b0 (LWP 3585)] 0xb7e9e582 in g_type_check_instance_cast () from /usr/lib/libgobject-2.0.so.0 (gdb) backtrace #0 0xb7e9e582 in g_type_check_instance_cast () from /usr/lib/libgobject-2.0.so.0 #1 0x08048a5b in main () (gdb) valgrind Undefined command: "valgrind". Try "help". (gdb) bt #0 0xb7e9e582 in g_type_check_instance_cast () from /usr/lib/libgobject-2.0.so.0 #1 0x08048a5b in main () (gdb) And my code: <div class="im"> #include<gst/gst.h> #include<glib.h> #include<gst/fft/gstffts16.h> static gboolean bus_call(GstBus *bus, GstMessage *msg, gpointer data); int main(int argc, char *argv[]) { GMainLoop *loop; GstElement *pipeline, *source, *filesink; GstBus *bus; </div> GstFFTS16 *fft; gint16 td; gint16 *timedata = &td; gint16 bufferin; gint16 *in = &bufferin; GstFFTS16Complex fq; GstFFTS16Complex *freq = &fq; /*const gint16 *in;*/ <div class="im"> /*GstFFTS16Complex *freq;*/ gst_init(&argc, &argv); loop = g_main_loop_new (NULL, FALSE); /*creating elements*/ pipeline = gst_pipeline_new ("audio-player"); source = gst_element_factory_make ("audiotestsrc", "file-source"); </div><div class="im"> fft = gst_fft_s16_new (128, FALSE); filesink = gst_element_factory_make ("alsasink", "audio-output"); </div> if (!pipeline || !source || !fft || !filesink) { <div class="im"> g_printerr ("One element could not be created. Exiting.\n"); return -1; } /*set-up the pipeline*/ </div> /*set up fft transform*/ /*gst_fft_s16_window(fft, timedata, GST_FFT_WINDOW_RECTANGULAR);*/ <div class="im"> gst_fft_s16_fft (fft, in, freq); /*message handler*/ bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); gst_bus_add_watch (bus, bus_call, loop); gst_object_unref (bus); /*colocar todos elementos na pipeline*/ gst_bin_add_many (GST_BIN (pipeline), source, filesink, NULL); /*Linkar elementos*/ /*Cria o link entre os pads dos elementos*/ gst_element_link_many (source, filesink, NULL); /* set pipeline playing status */ gst_element_set_state (pipeline, GST_STATE_PLAYING); g_print ("Running...\n"); /*iterate*/ g_main_loop_run (loop); g_print ("Recording\n"); /* 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; } static gboolean bus_call(GstBus *bus, GstMessage *msg, gpointer data) { return TRUE; } </div>Can't really figure out what is gong on! 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 class="im"> Antoine Tremblay wrote: > Did you try a backtrace ? > > Type bt <enter> in gdb .. > > It will show you the backtrace of the sigsegv and thus the line that > failed... > > If not you can always try valgrind ... > > > On Wed, May 6, 2009 at 7:59 PM, Guilherme <<a href="mailto:grlongo.ireland@gmail.com">grlongo.ireland@gmail.com</a> </div><div><div></div><div class="h5">> <mailto:<a href="mailto:grlongo.ireland@gmail.com">grlongo.ireland@gmail.com</a>>> wrote: > > Hi all. > > I finished building my code and it's compiled without any error, but > when I run it I get the beautiful segmentation fault. > > No good. > > Running gdb I can't get the line of the problem, instead I have this: > > (gdb) run > Starting program: /home/guilherme/EBA > [Thread debugging using libthread_db enabled] > [New Thread 0xb7a479b0 (LWP 5565)] > > Program received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0xb7a479b0 (LWP 5565)] > 0xb7bf2234 in ?? () from /usr/lib/libgstfft-0.10.so.0 > > Is this a normal debug or I'm doing smth wrong? > It seen a problem with my fft implementation. That is the code: > > > #include<gst/gst.h> > > > #include<glib.h> > > > #include<gst/fft/gstffts16.h> > > > > static gboolean bus_call(GstBus *bus, GstMessage *msg, > gpointer data); > > > > int main(int argc, char *argv[]) > > > { > > > GMainLoop *loop; > > > > > > GstElement *pipeline, *source, *filesink; > > > GstBus *bus; > > > GstBuffer *buffer; > > > GstFFTS16 *fft; > > > > > > const gint16 *in; > > > GstFFTS16Complex *freq; > > > > > > gst_init(&argc, &argv); > > > > > > loop = g_main_loop_new (NULL, FALSE); > > > > > > /*creating elements*/ > > > pipeline = gst_pipeline_new > ("audio-player"); > > > source = gst_element_factory_make > ("audiotestsrc", > "file-source"); > > > filesink = gst_element_factory_make ("alsasink", > "audio-output"); > > > fft = gst_fft_s16_new (128, FALSE); > > > > > > > > > if (!pipeline || !source || !filesink) { > > > g_printerr ("One element could not be created. > Exiting.\n"); > > > return -1; > > > } > > > > > > /*set-up the pipeline*/ > > > > > > /*create and set up buffer*/ > > > g_print ("\n\nCreating Buffer\n"); > > > buffer = gst_buffer_new(); > > > if(!buffer) > > > g_printerr ("buffer could not be created\n"); > > > else > > > g_print ("Buffer Created\n\n"); > > > > > > /*set up fft transform*/ > > > gst_fft_s16_fft (fft, in, freq); > > > > > > > > > > /*message handler*/ > > > bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); > > > gst_bus_add_watch (bus, bus_call, loop); > > > gst_object_unref (bus); > > > > > > /*colocar todos elementos na pipeline*/ > > > gst_bin_add_many (GST_BIN (pipeline), source, > filesink, NULL); > > > > > > /*Linkar elementos*/ > > > /*Cria o link entre os pads dos elementos*/ > > > gst_element_link_many (source, filesink, NULL); > > > > > > > > > /* set pipeline playing status */ > > > gst_element_set_state (pipeline, GST_STATE_PLAYING); > > > g_print ("Running...\n"); > > > > > > /*iterate*/ > > > g_main_loop_run (loop); > > > g_print ("Recording\n"); > > > > > > /* 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; > > > } > > > > static gboolean bus_call(GstBus *bus, GstMessage *msg, > gpointer data) { > > > > return TRUE; > > > } > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------------ > The NEW KODAK i700 Series Scanners deliver under ANY > circumstances! 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Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. <a href="http://p.sf.net/sfu/kodak-com" target="_blank">http://p.sf.net/sfu/kodak-com</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> </div></div></blockquote></div>