Add libva, a library for video accelerated video processing.

third_party/libva/va/va_backend_egl.h

Index: third_party/libva/va/va_backend_egl.h
diff --git a/third_party/libva/va/va_backend_egl.h b/third_party/libva/va/va_backend_egl.h
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+/*
+ * Copyright (C) 2009 Splitted-Desktop Systems. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef VA_BACKEND_EGL_H
+#define VA_BACKEND_EGL_H
+
+#include <va/va.h>
+#include <va/va_backend.h>
+
+struct VADriverVTableEGL {
+    /* Get EGL ClientBufer buffer index and device id from surface id*/
+    VAStatus (*vaGetEGLClientBufferFromSurface) (
+        VADriverContextP ctx,
+        VASurfaceID surface,
+        void **buffer
+    );
+    /* TBD: more APIs for EGL */
+};
+
+#endif /* VA_BACKEND_EGL_H */