Merge commit '4e08c821106fc1d6d358864abf0d8488b12f38c6'

* commit '4e08c821106fc1d6d358864abf0d8488b12f38c6':
  lavc: add an Intel libmfx-based H.264 decoder

Conflicts:
	configure
	libavcodec/Makefile
	libavcodec/allcodecs.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/qsv_api.c

@@ -0,0 +1,28 @@
+/*
+ * Intel MediaSDK QSV public API functions
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/mem.h"
+
+#include "qsv.h"
+
+AVQSVContext *av_qsv_alloc_context(void)
+{
+    return av_mallocz(sizeof(AVQSVContext));
+}