Don't build vaapisink/gl by default. However, if this is enabled, use the GL renderer by default.

configure.ac

@@ -75,6 +75,11 @@ AC_ARG_ENABLE(glx,
                    [enable OpenGL/X11 @<:@default=yes@:>@]),
     [], [enable_glx="yes"])
 
+AC_ARG_ENABLE(vaapisink-glx,
+    AC_HELP_STRING([--enable-vaapisink-glx],
+                   [enable OpenGL/X11 to vaapisink @<:@default=yes@:>@]),
+    [], [enable_vaapisink_glx="no"])
+
 dnl Check for __attribute__((visibility()))
 AC_CACHE_CHECK([whether __attribute__((visibility())) is supported],
   vaapi_cv_visibility_attribute,
@@ -227,9 +232,20 @@ AC_SUBST(LIBVA_GLX_PKGNAME)
 AC_SUBST(LIBVA_EXTRA_CFLAGS)
 AC_SUBST(LIBVA_EXTRA_LIBS)
 
+dnl Check for OpenGL support to
+if test "$enable_vaapisink_glx:$USE_GLX" = "yes:1"; then
+    USE_VAAPISINK_GLX=1
+else
+    USE_VAAPISINK_GLX=0
+fi
+
 AC_DEFINE_UNQUOTED(USE_GLX, $USE_GLX, [Defined to 1 if GLX is enabled])
 AM_CONDITIONAL(USE_GLX, test $USE_GLX -eq 1)
 
+AC_DEFINE_UNQUOTED(USE_VAAPISINK_GLX, $USE_VAAPISINK_GLX,
+    [Defined to 1 to enable GLX support to vaapisink])
+AM_CONDITIONAL(USE_VAAPISINK_GLX, test $USE_VAAPISINK_GLX -eq 1)
+
 VA_VERSION=`$PKG_CONFIG --modversion libva`
 VA_MAJOR_VERSION=`echo "$VA_VERSION" | cut -d'.' -f1`
 VA_MINOR_VERSION=`echo "$VA_VERSION" | cut -d'.' -f2`
@@ -289,4 +305,5 @@ echo $PACKAGE configuration summary:
 echo
 echo VA-API version ................... : $VA_VERSION_STR
 echo GLX support ...................... : $(test $USE_GLX  -eq 1 && echo yes || echo no)
+echo Build vaapisink with OpenGL ...... : $(test $USE_VAAPISINK_GLX  -eq 1 && echo yes || echo no)
 echo

sys/vaapisink/Makefile.am

@@ -3,7 +3,7 @@ plugin_LTLIBRARIES = libgstvaapisink.la
 libgstvaapi_CFLAGS = \
 	-I$(top_srcdir)/gst-libs
 
-if USE_GLX
+if USE_VAAPISINK_GLX
 libgstvaapi_LIBS = \
 	$(top_builddir)/gst-libs/gst/vaapi/libgstvaapi-glx-$(GST_MAJORMINOR).la
 else

sys/vaapisink/gstvaapisink.c

@@ -34,7 +34,7 @@
 #include <gst/vaapi/gstvaapivideosink.h>
 #include <gst/vaapi/gstvaapidisplay_x11.h>
 #include <gst/vaapi/gstvaapiwindow_x11.h>
-#if USE_GLX
+#if USE_VAAPISINK_GLX
 #include <gst/vaapi/gstvaapidisplay_glx.h>
 #include <gst/vaapi/gstvaapiwindow_glx.h>
 #endif
@@ -125,7 +125,7 @@ gst_vaapisink_ensure_window(GstVaapiSink *sink, guint width, guint height)
     GstVaapiDisplay * const display = sink->display;
 
     if (!sink->window) {
-#if USE_GLX
+#if USE_VAAPISINK_GLX
         if (sink->use_glx)
             sink->window = gst_vaapi_window_glx_new(display, width, height);
         else
@@ -139,7 +139,7 @@ static inline gboolean
 gst_vaapisink_ensure_display(GstVaapiSink *sink)
 {
     if (!sink->display) {
-#if USE_GLX
+#if USE_VAAPISINK_GLX
         if (sink->use_glx)
             sink->display = gst_vaapi_display_glx_new(sink->display_name);
         else
@@ -285,7 +285,7 @@ gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer)
 
     flags = GST_VAAPI_PICTURE_STRUCTURE_FRAME;
 
-#if USE_GLX
+#if USE_VAAPISINK_GLX
     if (sink->use_glx) {
         GstVaapiWindowGLX * const window = GST_VAAPI_WINDOW_GLX(sink->window);
         gst_vaapi_window_glx_make_current(window);
@@ -418,14 +418,14 @@ static void gst_vaapisink_class_init(GstVaapiSinkClass *klass)
     basesink_class->preroll     = gst_vaapisink_show_frame;
     basesink_class->render      = gst_vaapisink_show_frame;
 
-#if USE_GLX
+#if USE_VAAPISINK_GLX
     g_object_class_install_property
         (object_class,
          PROP_USE_GLX,
          g_param_spec_boolean("use-glx",
                               "GLX rendering",
                               "Enables GLX rendering",
-                              FALSE,
+                              TRUE,
                               G_PARAM_READWRITE));
 #endif
 
@@ -473,7 +473,7 @@ static void gst_vaapisink_init(GstVaapiSink *sink, GstVaapiSinkClass *klass)
     sink->video_height  = 0;
     sink->fullscreen    = FALSE;
     sink->synchronous   = FALSE;
-    sink->use_glx       = FALSE;
+    sink->use_glx       = USE_VAAPISINK_GLX;
 }
 
 GstVaapiDisplay *

sys/vaapisink/gstvaapisink.h

@@ -24,7 +24,7 @@
 #include <gst/video/gstvideosink.h>
 #include <gst/vaapi/gstvaapidisplay.h>
 #include <gst/vaapi/gstvaapiwindow.h>
-#if USE_GLX
+#if USE_VAAPISINK_GLX
 #include <gst/vaapi/gstvaapitexture.h>
 #endif
 #include <X11/Xlib.h>
@@ -58,7 +58,7 @@ G_BEGIN_DECLS
 typedef struct _GstVaapiSink                    GstVaapiSink;
 typedef struct _GstVaapiSinkClass               GstVaapiSinkClass;
 
-#if !USE_GLX
+#if !USE_VAAPISINK_GLX
 typedef struct _GstVaapiTexture                 GstVaapiTexture;
 #endif