Simple program in c that uses gstreamer to play a ogg audio

gstreamer-audio-ogg.c

#include <gst/gst.h>

// gst-launch-1.0 videotestsrc ! videobalance saturation=0 ! x264enc ! video/x-h264, stream-format=byte-stream ! rtph264pay ! udpsink host=35.153.160.117 port=5000

int main (int argc, char *argv[]) {
    GstElement *pipeline, *src; 
    GstElement *x264enc;
    // GstElement *x264enc, 
    // GstElement *rtph264pay, 
    GstElement *autovideosink;
    // GstElement *udpsink;
    GstBus *bus;
    GstMessage *msg;
    GstStateChangeReturn ret;

    gst_init(&argc, &argv);

    pipeline = gst_element_factory_make("pipeline","pipeline");    
    src = gst_element_factory_make("filesrc","src");
    x264enc = gst_element_factory_make("x264enc","x264enc");
    autovideosink = gst_element_factory_make ("autovideosink", "autovideosink");
    
    // x264enc = gst_element_factory_make ("x264enc", "x264enc");
    // rtph264pay = gst_element_factory_make ("rtph264pay", "rtph264pay");
    // udpsink = gst_element_factory_make ("udpsink", "udpsink");
    // gst_bin_add_many (GST_BIN (pipeline), src, x264enc, rtph264pay, autovideosink, NULL);
    // gst_element_link_many (src, x264enc, rtph264pay, autovideosink, NULL);

    gst_bin_add_many (GST_BIN (pipeline), src, x264enc, autovideosink, NULL);
    gst_element_link_many (src, x264enc, autovideosink, NULL);

    g_object_set (G_OBJECT (src), "location", "/home/battisti/versionado/alfa/samples/sample.mp4", NULL);

    ret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
    if (ret == GST_STATE_CHANGE_FAILURE) {
      g_printerr ("Unable to set the pipeline to the playing state.\n");
      gst_object_unref (pipeline);
      return -1;
    }    
// host=35.153.160.117 port=5000

    bus = gst_element_get_bus (pipeline);
    msg = gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE, GST_MESSAGE_ERROR | GST_MESSAGE_EOS);
    

    if (msg != NULL)
        gst_message_unref(msg);

    gst_object_unref(bus);
    gst_element_set_state (pipeline, GST_STATE_NULL);
    gst_object_unref (pipeline);
    return 0;
}*/