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diff --git a/dom/media/platforms/ffmpeg/libav53/include/libavutil/cpu.h b/dom/media/platforms/ffmpeg/libav53/include/libavutil/cpu.h
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+++ b/dom/media/platforms/ffmpeg/libav53/include/libavutil/cpu.h
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+/*
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CPU_H
+#define AVUTIL_CPU_H
+
+#define AV_CPU_FLAG_FORCE 0x80000000 /* force usage of selected flags (OR) */
+
+ /* lower 16 bits - CPU features */
+#define AV_CPU_FLAG_MMX 0x0001 ///< standard MMX
+#define AV_CPU_FLAG_MMX2 0x0002 ///< SSE integer functions or AMD MMX ext
+#define AV_CPU_FLAG_3DNOW 0x0004 ///< AMD 3DNOW
+#define AV_CPU_FLAG_SSE 0x0008 ///< SSE functions
+#define AV_CPU_FLAG_SSE2 0x0010 ///< PIV SSE2 functions
+#define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster
+#define AV_CPU_FLAG_3DNOWEXT 0x0020 ///< AMD 3DNowExt
+#define AV_CPU_FLAG_SSE3 0x0040 ///< Prescott SSE3 functions
+#define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster
+#define AV_CPU_FLAG_SSSE3 0x0080 ///< Conroe SSSE3 functions
+#define AV_CPU_FLAG_ATOM 0x10000000 ///< Atom processor, some SSSE3 instructions are slower
+#define AV_CPU_FLAG_SSE4 0x0100 ///< Penryn SSE4.1 functions
+#define AV_CPU_FLAG_SSE42 0x0200 ///< Nehalem SSE4.2 functions
+#define AV_CPU_FLAG_AVX 0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used
+#define AV_CPU_FLAG_XOP 0x0400 ///< Bulldozer XOP functions
+#define AV_CPU_FLAG_FMA4 0x0800 ///< Bulldozer FMA4 functions
+#define AV_CPU_FLAG_IWMMXT 0x0100 ///< XScale IWMMXT
+#define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard
+
+/**
+ * Return the flags which specify extensions supported by the CPU.
+ */
+int av_get_cpu_flags(void);
+
+/* The following CPU-specific functions shall not be called directly. */
+int ff_get_cpu_flags_arm(void);
+int ff_get_cpu_flags_ppc(void);
+int ff_get_cpu_flags_x86(void);
+
+#endif /* AVUTIL_CPU_H */