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diff --git a/media/ffvpx/libavutil/x86/intmath.h b/media/ffvpx/libavutil/x86/intmath.h
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+/*
+ * Copyright (c) 2015 James Almer
+ *
+ * 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
+ */
+
+#ifndef AVUTIL_X86_INTMATH_H
+#define AVUTIL_X86_INTMATH_H
+
+#include <stdint.h>
+#include <stdlib.h>
+#if HAVE_FAST_CLZ
+#if defined(_MSC_VER)
+#include <intrin.h>
+#elif defined(__INTEL_COMPILER)
+#include <immintrin.h>
+#endif
+#endif
+#include "config.h"
+
+#if HAVE_FAST_CLZ
+#if (defined(__INTEL_COMPILER) && (__INTEL_COMPILER>=1216)) || defined(_MSC_VER)
+# if defined(__INTEL_COMPILER)
+# define ff_log2(x) (_bit_scan_reverse((x)|1))
+# else
+# define ff_log2 ff_log2_x86
+static av_always_inline av_const int ff_log2_x86(unsigned int v)
+{
+ unsigned long n;
+ _BitScanReverse(&n, v|1);
+ return n;
+}
+# endif
+# define ff_log2_16bit av_log2
+
+#if defined(__INTEL_COMPILER) || (defined(_MSC_VER) && (_MSC_VER >= 1700) && \
+ (defined(__BMI__) || !defined(__clang__)))
+# define ff_ctz(v) _tzcnt_u32(v)
+
+# if ARCH_X86_64
+# define ff_ctzll(v) _tzcnt_u64(v)
+# else
+# define ff_ctzll ff_ctzll_x86
+static av_always_inline av_const int ff_ctzll_x86(long long v)
+{
+ return ((uint32_t)v == 0) ? _tzcnt_u32((uint32_t)(v >> 32)) + 32 : _tzcnt_u32((uint32_t)v);
+}
+# endif
+#endif /* _MSC_VER */
+
+#endif /* __INTEL_COMPILER */
+
+#endif /* HAVE_FAST_CLZ */
+
+#if defined(__GNUC__)
+
+/* Our generic version of av_popcount is faster than GCC's built-in on
+ * CPUs that don't support the popcnt instruction.
+ */
+#if defined(__POPCNT__)
+ #define av_popcount __builtin_popcount
+#if ARCH_X86_64
+ #define av_popcount64 __builtin_popcountll
+#endif
+
+#endif /* __POPCNT__ */
+
+#if defined(__BMI2__)
+
+#if AV_GCC_VERSION_AT_LEAST(5,1)
+#define av_mod_uintp2 __builtin_ia32_bzhi_si
+#elif HAVE_INLINE_ASM
+/* GCC releases before 5.1.0 have a broken bzhi builtin, so for those we
+ * implement it using inline assembly
+ */
+#define av_mod_uintp2 av_mod_uintp2_bmi2
+static av_always_inline av_const unsigned av_mod_uintp2_bmi2(unsigned a, unsigned p)
+{
+ if (av_builtin_constant_p(p))
+ return a & ((1 << p) - 1);
+ else {
+ unsigned x;
+ __asm__ ("bzhi %2, %1, %0 \n\t" : "=r"(x) : "rm"(a), "r"(p));
+ return x;
+ }
+}
+#endif /* AV_GCC_VERSION_AT_LEAST */
+
+#endif /* __BMI2__ */
+
+#if defined(__SSE2__) && !defined(__INTEL_COMPILER)
+
+#define av_clipd av_clipd_sse2
+static av_always_inline av_const double av_clipd_sse2(double a, double amin, double amax)
+{
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+ if (amin > amax) abort();
+#endif
+ __asm__ ("maxsd %1, %0 \n\t"
+ "minsd %2, %0 \n\t"
+ : "+&x"(a) : "xm"(amin), "xm"(amax));
+ return a;
+}
+
+#endif /* __SSE2__ */
+
+#if defined(__SSE__) && !defined(__INTEL_COMPILER)
+
+#define av_clipf av_clipf_sse
+static av_always_inline av_const float av_clipf_sse(float a, float amin, float amax)
+{
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+ if (amin > amax) abort();
+#endif
+ __asm__ ("maxss %1, %0 \n\t"
+ "minss %2, %0 \n\t"
+ : "+&x"(a) : "xm"(amin), "xm"(amax));
+ return a;
+}
+
+#endif /* __SSE__ */
+
+#if defined(__AVX__) && !defined(__INTEL_COMPILER)
+
+#undef av_clipd
+#define av_clipd av_clipd_avx
+static av_always_inline av_const double av_clipd_avx(double a, double amin, double amax)
+{
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+ if (amin > amax) abort();
+#endif
+ __asm__ ("vmaxsd %1, %0, %0 \n\t"
+ "vminsd %2, %0, %0 \n\t"
+ : "+&x"(a) : "xm"(amin), "xm"(amax));
+ return a;
+}
+
+#undef av_clipf
+#define av_clipf av_clipf_avx
+static av_always_inline av_const float av_clipf_avx(float a, float amin, float amax)
+{
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+ if (amin > amax) abort();
+#endif
+ __asm__ ("vmaxss %1, %0, %0 \n\t"
+ "vminss %2, %0, %0 \n\t"
+ : "+&x"(a) : "xm"(amin), "xm"(amax));
+ return a;
+}
+
+#endif /* __AVX__ */
+
+#endif /* __GNUC__ */
+
+#endif /* AVUTIL_X86_INTMATH_H */