bzip2 and zlib headers

[yusuf.husainy]

Thanks again for the reply David,
Thanks to Tony also for the reply.


I get it, the linking has some errors.

I found out a bug on gstreamer's side:
1. Bug 59250 - https://bugs.freedesktop.org/show_bug.cgi?id=59250
2. In continuation with the above solution, i appended "-lbz2" also. This is
wrt to Andoni's comment#1 for Bug 59250.

For now, I got no errors and linking is successful.

But i do have some trouble running the application on my tablet.

I have made some minor modifications to the native code of
android-tutorial-3 in the app_function() method:

/* Main method for the native code. This is executed on its own thread. */
static void *app_function (void *userdata) {
  JavaVMAttachArgs args;
  GstBus *bus;
  CustomData *data = (CustomData *)userdata;
  GSource *bus_source;
  GError *error = NULL;
  GstElement *source, *rtpdepay, *decoder, *sink/*, *appsrc*/;

//  GstBus *bus;

  GstCaps *caps;

  GstMessage *msg;


  GST_DEBUG ("Creating pipeline in CustomData at %p", data);

  /* Create our own GLib Main Context and make it the default one */
  data->context = g_main_context_new ();
  g_main_context_push_thread_default(data->context);

  /* Build pipeline */
  //data->pipeline = gst_parse_launch("videotestsrc ! warptv !
ffmpegcolorspace ! autovideosink", &error);
  data->pipeline = gst_pipeline_new("videopipeline"); 

   

  /* Create the elements */

  //appsrc = gst_element_factory_make ("appsrc", "app-src");

  source = gst_element_factory_make ("udpsrc", "source");

  rtpdepay = gst_element_factory_make ("rtpmp4vdepay", "rtpdepay");

  decoder = gst_element_factory_make ("ffdec_mpeg4", "decoder");

  sink = gst_element_factory_make ("eglglessink", "sink");

/*if(!appsrc)

  g_printerr ("Pipeline Error");
  //  set_ui_message("appsrc error", data);
*/


  if(!source)
{
  g_printerr ("Source Error");
  set_ui_message("source error", data);
  return NULL;
}
  

  if(!sink)
{
  g_printerr ("Sink Error");
  set_ui_message("sink error", data);
  return NULL;
}



  if(!rtpdepay)
{
  g_printerr ("RTPDepay Error");
  set_ui_message("RTPdepay error", data);
  return NULL;
}


  if(!decoder)
{
  g_printerr ("Decoder Error");
  set_ui_message("decoder error", data);
  return NULL;
}


/*if (!pipeline || !source || !sink || !rtpdepay || !decoder) {

    g_printerr ("Not all elements could be created.\n");

    return -1;

  }*/





 // Modify the properties

  g_object_set(G_OBJECT(sink), "sync", 0, NULL);

  g_object_set(G_OBJECT(source), "do-timestamp", 1, NULL);

  // Set the stream to act "live stream"

  //g_object_set(G_OBJECT(appsrc), "is-live", 1, NULL);

  // Set the stream type to "stream"

  //g_object_set(G_OBJECT(appsrc), "stream-type", 0, NULL);


caps = gst_caps_from_string("application/x-rtp, media=video,
encoding-name=MP4V-ES,
config=000001b001000001b58913000001000000012000c48d8800553204961463000001b24c61766335332e33352e30");


//  caps=gst_caps_from_string("application/x-rtp, media=video,
encoding-name=MP4V-ES,
config=000001b001000001b58913000001000000012000c48d8800553204961463000001b24c61766335332e33352e30");

g_object_set(source, "caps", caps, NULL);

 gst_caps_unref(caps);

//gst_app_src_set_caps(GST_APP_SRC(appsrc), caps);

//gst_caps_unref (caps);

gst_bin_add_many (GST_BIN (data->pipeline), source, rtpdepay, decoder, sink,
NULL);

if (gst_element_link_many (source, rtpdepay, decoder, sink, NULL) != TRUE) {

    gst_object_unref (data->pipeline);

     
//  data->pipeline = gst_parse_launch("udpsrc ! rtpmp4vdepay ! ffdec_mpeg4 !
xvimagesink sync=0", &error);
    gchar * message = g_strdup_printf("Unable to build pipeline: %s",
"elements could not be linked");
    //g_clear_error (&error);
    set_ui_message(message, data);
    g_free (message);
    return NULL;
  }
  /* Set the pipeline to READY, so it can already accept a window handle, if
we have one */
  gst_element_set_state(data->pipeline, GST_STATE_READY);

  data->video_sink = gst_bin_get_by_interface(GST_BIN(data->pipeline),
GST_TYPE_X_OVERLAY);
  if (!data->video_sink) {
    GST_ERROR ("Could not retrieve video sink");
    return NULL;
  }

  /* Instruct the bus to emit signals for each received message, and connect
to the interesting signals */
  bus = gst_element_get_bus (data->pipeline);
  bus_source = gst_bus_create_watch (bus);
  g_source_set_callback (bus_source, (GSourceFunc)
gst_bus_async_signal_func, NULL, NULL);
  g_source_attach (bus_source, data->context);
  g_source_unref (bus_source);
  g_signal_connect (G_OBJECT (bus), "message::error", (GCallback)error_cb,
data);
  g_signal_connect (G_OBJECT (bus), "message::state-changed",
(GCallback)state_changed_cb, data);
  gst_object_unref (bus);

  /* Create a GLib Main Loop and set it to run */
  GST_DEBUG ("Entering main loop... (CustomData:%p)", data);
  data->main_loop = g_main_loop_new (data->context, FALSE);
  check_initialization_complete (data);
  g_main_loop_run (data->main_loop);
  GST_DEBUG ("Exited main loop");
  g_main_loop_unref (data->main_loop);
  data->main_loop = NULL;

  /* Free resources */
  g_main_context_pop_thread_default(data->context);
  g_main_context_unref (data->context);
  gst_element_set_state (data->pipeline, GST_STATE_NULL);
  gst_object_unref (data->video_sink);
  gst_object_unref (data->pipeline);

  return NULL;
}


Now I have a project wherein i live stream a video from my laptop's inbuilt
web-cam to my tablet through UDP link(via unicast).
Before I start the transmission, infact even after starting the
transmission, the tab app does not listen(on the UDP source), meaning it
gives an error on the ui as - "Error received from element source: Could not
open resource for reading"
I have not pressed the play button, so technically, the pipeline hasn't gone
to the playing stage as yet. 

I appreciate any help.





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