test: vaapicontext: fix draw callback with multiple videos

The callback is called for both windows. So make sure that
gst_video_overlay_set_render_rectangle() is called for the correct one.
Otherwise, the left video will be randomly moved behind the right video.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/-/merge_requests/342>

diff --git a/tests/examples/test-vaapicontext.c b/tests/examples/test-vaapicontext.c
index 5b46795..98760dc 100644 (file)
--- a/tests/examples/test-vaapicontext.c
+++ b/tests/examples/test-vaapicontext.c
@@ -307,14 +307,17 @@ draw_cb (GtkWidget * widget, cairo_t * cr, gpointer data)
 {
   AppData *app = data;
   GtkAllocation allocation;
+  int i;
+
+  i = (widget == app->video_widget[0]) ? 0 : 1;
 
   get_allocation (widget, &allocation);
 
-  gst_println ("draw_cb x %d, y %d, w %d, h %d\n",
+  gst_println ("draw_cb[%d] x %d, y %d, w %d, h %d\n", i,
       allocation.x, allocation.y, allocation.width, allocation.height);
 
-  if (app->overlay[0]) {
-    gst_video_overlay_set_render_rectangle (app->overlay[0], allocation.x,
+  if (app->overlay[i]) {
+    gst_video_overlay_set_render_rectangle (app->overlay[i], allocation.x,
         allocation.y, allocation.width, allocation.height);
   }
 }