From 4f1725345f91c18af931b82605c5073db32eda68 Mon Sep 17 00:00:00 2001
From: gb <gb@5584edef-b1fe-4b99-b61b-dd2bab72e969>
Date: Wed, 10 Mar 2010 12:25:38 +0000
Subject: [PATCH] Dump caps.

---
 tests/examples/generic/test-display.c | 66 ++++++++++++++++++++++++++++++++++-
 1 file changed, 65 insertions(+), 1 deletion(-)

diff --git a/tests/examples/generic/test-display.c b/tests/examples/generic/test-display.c
index 5c05511..bfe4055 100644
--- a/tests/examples/generic/test-display.c
+++ b/tests/examples/generic/test-display.c
@@ -18,14 +18,62 @@
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
  */
 
-#include <gst/vaapi/gstvaapidisplay.h>
+#include <gst/video/video.h>
 #include <gst/vaapi/gstvaapidisplay_x11.h>
 
+static void
+print_caps(GstCaps *caps, const gchar *name)
+{
+    guint i, n_caps = gst_caps_get_size(caps);
+
+    g_print("%u %s caps\n", n_caps, name);
+
+    for (i = 0; i < gst_caps_get_size(caps); i++) {
+        GstStructure * const structure = gst_caps_get_structure(caps, i);
+        if (!structure)
+            g_error("could not get caps structure %d", i);
+
+        g_print("  %s:", gst_structure_get_name(structure));
+
+        if (gst_structure_has_name(structure, "video/x-raw-yuv")) {
+            guint32 fourcc;
+
+            gst_structure_get_fourcc(structure, "format", &fourcc);
+
+            g_print(" fourcc '%c%c%c%c'",
+                    fourcc & 0xff,
+                    (fourcc >> 8) & 0xff,
+                    (fourcc >> 16) & 0xff,
+                    (fourcc >> 24) & 0xff);
+        }
+        else {
+            gint bpp, endian, rmask, gmask, bmask, amask;
+            gboolean has_alpha;
+
+            gst_structure_get_int(structure, "bpp",         &bpp);
+            gst_structure_get_int(structure, "endianness",  &endian);
+            gst_structure_get_int(structure, "red_mask",    &rmask);
+            gst_structure_get_int(structure, "blue_mask",   &bmask);
+            gst_structure_get_int(structure, "green_mask",  &gmask);
+            has_alpha = gst_structure_get_int(structure, "alpha_mask", &amask);
+
+            g_print(" %d bits per pixel, %s endian,",
+                    bpp, endian == G_BIG_ENDIAN ? "big" : "little");
+            g_print(" %s masks", has_alpha ? "rgba" : "rgb");
+            g_print(" 0x%08x 0x%08x 0x%08x", rmask, gmask, bmask);
+            if (has_alpha)
+                g_print(" 0x%08x", amask);
+        }
+        g_print("\n");
+    }
+}
+
 int
 main(int argc, char *argv[])
 {
     Display *x11_display;
     GstVaapiDisplay *display;
+    GstCaps *caps;
 
     gst_init(&argc, &argv);
 
@@ -37,6 +85,22 @@ main(int argc, char *argv[])
     if (!display)
         g_error("could not create VA-API display");
 
+    caps = gst_vaapi_display_get_image_caps(display);
+    if (!caps)
+        g_error("could not get VA image caps");
+
+    print_caps(caps, "image");
+    gst_caps_unref(caps);
+
+    caps = gst_vaapi_display_get_subpicture_caps(display);
+    if (!caps)
+        g_error("could not get VA subpicture caps");
+
+    print_caps(caps, "subpicture");
+    gst_caps_unref(caps);
+
     g_object_unref(G_OBJECT(display));
+    XCloseDisplay(x11_display);
+    gst_deinit();
     return 0;
 }
-- 
2.7.4