You have a copy / paste error in your code, both ffmpeg and sink are labeled as httpsrc. Also look at your use of htpsrc and httpsrc. -----Ursprüngliche Nachricht----- Von: gstreamer-embedded [mailto:gstreamer-embedded-bounces@xxxxxxxxxxxxxxxxxxxxx] Im Auftrag von Mayank Agarwal Gesendet: Freitag, 5. September 2014 14:06 An: gstreamer-devel@xxxxxxxxxxxxxxxxxxxxx; Discussions specific to using GStreamer on embedded systems; gstreamer-embedded-request@xxxxxxxxxxxxxxxxxxxxx Betreff: segmentation fault in playing gstreamer pipeline Hi, I have written a simple application to play webm file below. #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; } int main(int argc,char *argv[]) { GMainLoop *loop; GstElement *htpsrc,*demuxer,*decoder,*ffmpeg,*sink; GstElement *pipeline; GstBus *bus; guint bus_watch_id; gst_init(&argc,&argv); loop = g_main_loop_new (NULL, FALSE); htpsrc = gst_element_factory_make("filesrc","htonesrc"); demuxer = gst_element_factory_make("matroskademux","demux"); decoder = gst_element_factory_make("vp8dec","vp8decoder"); ffmpeg = gst_element_factory_make("ffmpegcolorspace","httpsrc"); sink = gst_element_factory_make("ximagesink","httpsrc"); if(!htpsrc) { g_print("source element could not be created\n"); return; } if(!demuxer) { g_print("demuxer element could not be created\n"); return; } if(!decoder) { g_print("decoder element could not be created\n"); return; } if(!ffmpeg) { g_print("ffmpeg element could not be created\n"); return; } if(!sink) { g_print("sink element could not be created\n"); return; } g_print("before creating pipeline \n"); pipeline = gst_pipeline_new("basic_player"); if(!pipeline) { g_printf("Pipeline could not be created"); return; } g_object_set (G_OBJECT (htpsrc), "location", argv[1], NULL); bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline)); bus_watch_id = gst_bus_add_watch(bus,bus_call,loop); gst_object_unref(loop); gst_bin_add_many(GST_BIN (pipeline),htpsrc,demuxer,decoder,ffmpeg,sink); gst_element_link_many(htpsrc,demuxer,decoder,ffmpeg,sink); gst_element_set_state(pipeline,GST_STATE_PLAYING); g_print ("Rundsning...\n"); g_main_loop_run (loop); 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)); g_source_remove (bus_watch_id); g_main_loop_unref (loop); return 0; on running the executable i am getting the following error: exampleone:20144): GStreamer-CRITICAL **: gst_object_unref: assertion `((GObject *) object)->ref_count > 0' failed (exampleone:20144): GStreamer-WARNING **: Name 'httpsrc' is not unique in bin 'basic_player', not adding Segmentation fault (core dumped) while the following pipeline is running fine: gst-launch souphttpsrc location= http://video.webmfiles.org/big-buck-bunny_trailer.webm ! matroskademux ! vp8dec ! ffmpegcolorspace ! ximagesink Please find complete log below: :00:00.316319426 20230 0x1f65600 INFO GST_INIT gst.c:456:gst_init_check: initialized GStreamer successfully 0:00:00.317857074 20230 0x1f65600 INFO GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstcoreelements.so" loaded 0:00:00.318031251 20230 0x1f65600 INFO GST_ELEMENT_FACTORY gstelementfactory.c:374:gst_element_factory_create: creating element "filesrc" named "htonesrc" 0:00:00.318548875 20230 0x1f65600 INFO GST_ELEMENT_PADS gstelement.c:728:gst_element_add_pad:<GstBaseSrc@0x22a0080> adding pad 'src' 0:00:00.320590434 20230 0x1f65600 INFO GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstmatroska.so" loaded 0:00:00.320789972 20230 0x1f65600 INFO GST_ELEMENT_FACTORY gstelementfactory.c:374:gst_element_factory_create: creating element "matroskademux" named "demux" 0:00:00.321194515 20230 0x1f65600 INFO GST_ELEMENT_PADS gstelement.c:728:gst_element_add_pad:<GstMatroskaDemux@0x22a8060> adding pad 'sink' 0:00:00.323143688 20230 0x1f65600 INFO GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstvp8.so" loaded 0:00:00.323336250 20230 0x1f65600 INFO GST_ELEMENT_FACTORY gstelementfactory.c:374:gst_element_factory_create: creating element "vp8dec" named "vp8decoder" 0:00:00.323779132 20230 0x1f65600 INFO GST_ELEMENT_PADS gstelement.c:728:gst_element_add_pad:<GstBaseVideoCodec@0x22adbf0> adding pad 'sink' 0:00:00.323973401 20230 0x1f65600 INFO GST_ELEMENT_PADS gstelement.c:728:gst_element_add_pad:<GstBaseVideoCodec@0x22adbf0> adding pad 'src' 0:00:00.324577863 20230 0x1f65600 INFO GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstffmpegcolorspace.so" loaded 0:00:00.324746060 20230 0x1f65600 INFO GST_ELEMENT_FACTORY gstelementfactory.c:374:gst_element_factory_create: creating element "ffmpegcolorspace" named "httpsrc" 0:00:00.325943932 20230 0x1f65600 INFO GST_ELEMENT_PADS gstelement.c:728:gst_element_add_pad:<GstBaseTransform@0x22be040> adding pad 'sink' 0:00:00.329914803 20230 0x1f65600 INFO GST_ELEMENT_PADS gstelement.c:728:gst_element_add_pad:<GstBaseTransform@0x22be040> adding pad 'src' 0:00:00.331701414 20230 0x1f65600 INFO GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-0.10/libgstximagesink.so" loaded 0:00:00.332159464 20230 0x1f65600 INFO GST_ELEMENT_FACTORY gstelementfactory.c:374:gst_element_factory_create: creating element "ximagesink" named "httpsrc" 0:00:00.332686392 20230 0x1f65600 INFO GST_ELEMENT_PADS gstelement.c:728:gst_element_add_pad:<GstBaseSink@0x22c4400> adding pad 'sink' before creating pipeline 0:00:00.333075046 20230 0x1f65600 INFO GST_ELEMENT_FACTORY gstelementfactory.c:374:gst_element_factory_create: creating element "pipeline" named "basic_player" 0:00:00.333361625 20230 0x1f65600 INFO filesrc gstfilesrc.c:374:gst_file_src_set_location: filename : location= 0:00:00.337114305 20230 0x1f65600 INFO filesrc gstfilesrc.c:375:gst_file_src_set_location: uri : file:///home/ubuntu/gstreamer/5sept/location= (exampleone:20230): GStreamer-CRITICAL **: gst_object_unref: assertion `((GObject *) object)->ref_count > 0' failed (exampleone:20230): GStreamer-WARNING **: Name 'httpsrc' is not unique in bin 'basic_player', not adding [2]+ Done gedit debugfile.txt Segmentation fault (core dumped) Regards, Mayank _______________________________________________ gstreamer-embedded mailing list gstreamer-embedded@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/gstreamer-embedded _______________________________________________ gstreamer-embedded mailing list gstreamer-embedded@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/gstreamer-embedded
