#include <glib.h>
#include <gst/gst.h>

#include <sys/types.h>
#include <dirent.h>

int jpg_filename_filter(const struct dirent *d)
{
   char *ext;
   
   ext = strrchr(d->d_name, '.');

   if (ext && strncasecmp(ext, ".jpg", 4) == 0)
   {
      return 1;
   }
   return 0;
}

int main (int argc, char *argv[])
{
   GstElement *pipeline;
   
   GstElement *multifilesrc;
   GstElement *jpegdec;
   GstElement *theoraenc;
   GstElement *oggmux;
   GstElement *filesink;
   
   GstPad *src;
   GstPad *sink;

   GList *locations;
   struct dirent **names;
   int number;
   int i;

   gst_init(&argc, &argv);

   pipeline = gst_pipeline_new("pipeline");
   
   locations = g_list_alloc();

   if ((number = scandir(".", &names, jpg_filename_filter, alphasort)) < 1)
   {
      fprintf(stderr, "no names");
      exit(1);
   }

   for (i = 0; i < number; i++)
   {
      g_list_append(locations, names[i]->d_name);
   }

   multifilesrc = gst_element_factory_make("multifilesrc", "multifilesrc");
   g_object_set(G_OBJECT(multifilesrc), "locations", locations, NULL);

   jpegdec = gst_element_factory_make("jpegdec", "jpegdec");

   theoraenc = gst_element_factory_make("theoraenc", "theoraenc");

   oggmux = gst_element_factory_make("oggmux", "oggmux");

   filesink = gst_element_factory_make("filesink", "sink");
   g_object_set(G_OBJECT(filesink), "location", "x.ogg", NULL);

   gst_element_link_pads(multifilesrc, "src", jpegdec, "sink");
   gst_element_link_pads(jpegdec, "src", theoraenc, "sink");

   src = gst_element_get_pad(theoraenc, "src");
   sink = gst_element_get_compatible_pad(oggmux, src);

   gst_pad_link(src, sink);

   gst_element_link_pads(oggmux, "src", filesink, "sink");

   gst_bin_add_many(GST_BIN(pipeline), multifilesrc, jpegdec, theoraenc, oggmux, filesink, NULL);

   gst_xml_write_file(GST_ELEMENT(pipeline), stdout);

   gst_element_set_state (pipeline, GST_STATE_PLAYING);
   while (gst_bin_iterate (GST_BIN (pipeline)));

   gst_element_set_state (pipeline, GST_STATE_NULL);

   gst_object_unref (GST_OBJECT (pipeline));

   exit(0);
}