GstCaps filter issue - c++

Question

trying to create filter using caps:
GMainLoop *loop;
GstElement *pipeline, *source, *demuxer, *decoder, *typefind, *conv, *sink;;
GstBus *bus;
guint bus_watch_id;
loop = g_main_loop_new(NULL, FALSE);
pipeline = gst_pipeline_new ("audio-player");
source = gst_element_factory_make ("filesrc", "file-source");
typefind = gst_element_factory_make ("typefind", "typefinder");
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) {
return -1;
}
g_signal_connect (typefind, "have-type", G_CALLBACK (cb_typefound), loop);
g_object_set(G_OBJECT(source), "location", name_of_file, NULL);
bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline));
bus_watch_id = gst_bus_add_watch(bus, bus_call, loop);
gst_object_unref(bus);
gst_bin_add_many(GST_BIN(pipeline), source, typefind, demuxer, decoder, conv, sink, NULL);
GstCaps *my_caps = gst_caps_new_simple ("audio/x-raw","rate", G_TYPE_INT, 384,NULL);
gboolean test=false;
test = gst_element_link_filtered(source,typefind, my_caps);
test = gst_element_link(typefind, demuxer);
test = gst_element_link_many(decoder, conv,sink, NULL);
g_signal_connect(demuxer, "pad-added", G_CALLBACK(on_pad_added), decoder);
......
Debug: gsttypefindelement.c(1169): gst_type_find_element_loop (): /GstPipeline:a
udio-player/GstTypeFindElement:typefinder:
stream stopped, reason not-linked
Var test == 1 after gst_element_link_filtered(source,typefind,
my_caps);
test == 0 after gst_element_link(typefind, demuxer);
test == 1 after gst_element_link_many(decoder, conv,sink, NULL);
If I just change gst_element_link_filtered on gst_element_link all going ok and file plays.
What am I doing wrong?

Answer 1

You seem to also have posted this to the gst-devel mailing list and you have a reply there:
http://gstreamer-devel.966125.n4.nabble.com/GstCaps-filter-issue-td4672796.html
Setting a filter caps of raw audio between the filesrc and the demuxer while you seem to want to play an OGG file is wrong. You should explain better what you want to do in order for us to provide some more refined guidance.