gstreamer/testsuite/caps/intersection.c

#include <gst/gst.h>

/* these caps all have a non empty intersection */
GstStaticCaps sinkcaps = GST_STATIC_CAPS ("video/mpeg, "
    "mpegtype=(int)1, "
    "foo1=(int)[20,40], " "foo2=(int)[20,40], " "foo3=(int)[10,20]");

GstStaticCaps mp1parsecaps = GST_STATIC_CAPS ("video/mpeg, "
    "mpegtype=(int)1, "
    "foo1=(int)30, " "foo2=(int)[20,30], " "foo3=(int)[20,30]");



GstStaticCaps rawcaps = GST_STATIC_CAPS ("video/raw, "
    "width=(int)[16,4096], " "height=(int)[16,4096]");

GstStaticCaps rawcaps2 = GST_STATIC_CAPS ("video/raw, "
    "height=(int)[16,256], " "depth=(int)16");

GstStaticCaps rawcaps3 = GST_STATIC_CAPS ("video/raw, "
    "fourcc=(fourcc){\"YUY2\", \"YV12\" }, " "height=(int)[16,4096]");

GstStaticCaps rawcaps4 = GST_STATIC_CAPS ("video/raw, "
    "fourcc=(fourcc){\"YUY2\",\"YV12\",\"YUYV\" }, " "height=(int)[16,4096]");

GstStaticCaps rawcaps5 = GST_STATIC_CAPS ("video/raw, "
    "fourcc=(fourcc){\"YUYV\",\"YUY2\"}, " "height=(int)[16,4096]");

GstStaticCaps rawcaps6 = GST_STATIC_CAPS ("video/raw, "
    "fourcc=(fourcc)\"YUYV\", "
    "height=(int)640, "
    "width=(int)480, "
    "framerate=(double)30.0; "
    "video/raw, "
    "fourcc=(fourcc)\"I420\", "
    "height=(int)640, " "width=(int)480, " "framerate=(double)30.0");

GstStaticCaps rawcaps7 =
    GST_STATIC_CAPS
    ("video/x-raw-yuv, format=(fourcc)YUY2, width=(int)[1,2147483647], height=(int)[1,2147483647], framerate=(double)[0,1.79769e+308]");

GstStaticCaps rawcaps8 =
    GST_STATIC_CAPS
    ("video/x-raw-yuv, format=(fourcc){ I420, YV12, YUY2 }, width=(int)[16,4096], height=(int)[16,4096], framerate=(double)[0,1.79769e+308]");

int
main (int argc, char *argv[])
{
  xmlDocPtr doc;
  xmlNodePtr parent;
  GstCaps *caps;

  gst_init (&argc, &argv);

  doc = xmlNewDoc ("1.0");
  doc->xmlRootNode = xmlNewDocNode (doc, NULL, "Capabilities", NULL);

  /*
     g_mem_chunk_info ();
     for (i = 0; i<100000; i++) {
     caps = gst_caps_intersect (gst_static_caps_get (rawcaps3), GST_CAPS_GET (rawcaps4));
     gst_caps_unref (caps);
     }
     g_mem_chunk_info ();
   */

  caps = gst_caps_intersect (gst_static_caps_get (&sinkcaps),
      gst_static_caps_get (&mp1parsecaps));
  parent = xmlNewChild (doc->xmlRootNode, NULL, "Capabilities1", NULL);
  gst_caps_save_thyself (caps, parent);

  caps = gst_caps_intersect (gst_static_caps_get (&rawcaps),
      gst_static_caps_get (&rawcaps2));
  parent = xmlNewChild (doc->xmlRootNode, NULL, "Capabilities2", NULL);
  gst_caps_save_thyself (caps, parent);

  caps = gst_caps_intersect (gst_static_caps_get (&rawcaps3),
      gst_static_caps_get (&rawcaps4));
  parent = xmlNewChild (doc->xmlRootNode, NULL, "Capabilities3", NULL);
  gst_caps_save_thyself (caps, parent);

  caps = gst_caps_intersect (gst_static_caps_get (&rawcaps3),
      gst_static_caps_get (&rawcaps5));
  parent = xmlNewChild (doc->xmlRootNode, NULL, "Capabilities4", NULL);
  gst_caps_save_thyself (caps, parent);

  caps = gst_caps_intersect (gst_static_caps_get (&rawcaps6),
      gst_caps_new_full (gst_structure_copy (gst_caps_get_structure
              (gst_static_caps_get (&rawcaps6), 0)), NULL));
  parent = xmlNewChild (doc->xmlRootNode, NULL, "Capabilities5", NULL);
  gst_caps_save_thyself (caps, parent);

  caps = gst_caps_intersect (gst_static_caps_get (&rawcaps7),
      gst_static_caps_get (&rawcaps8));
  g_print ("intersection: %s\n", gst_caps_to_string (caps));

  xmlDocDump (stdout, doc);

  return 0;
}