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diff --git a/third_party/dav1d/src/cpu.h b/third_party/dav1d/src/cpu.h
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+/*
+ * Copyright © 2018-2022, VideoLAN and dav1d authors
+ * Copyright © 2018-2022, Two Orioles, LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef DAV1D_SRC_CPU_H
+#define DAV1D_SRC_CPU_H
+
+#include "config.h"
+
+#include "common/attributes.h"
+
+#include "dav1d/common.h"
+#include "dav1d/dav1d.h"
+
+#if ARCH_AARCH64 || ARCH_ARM
+#include "src/arm/cpu.h"
+#elif ARCH_LOONGARCH
+#include "src/loongarch/cpu.h"
+#elif ARCH_PPC64LE
+#include "src/ppc/cpu.h"
+#elif ARCH_RISCV
+#include "src/riscv/cpu.h"
+#elif ARCH_X86
+#include "src/x86/cpu.h"
+#endif
+
+EXTERN unsigned dav1d_cpu_flags;
+EXTERN unsigned dav1d_cpu_flags_mask;
+
+void dav1d_init_cpu(void);
+DAV1D_API void dav1d_set_cpu_flags_mask(unsigned mask);
+int dav1d_num_logical_processors(Dav1dContext *c);
+
+static ALWAYS_INLINE unsigned dav1d_get_cpu_flags(void) {
+ unsigned flags = dav1d_cpu_flags & dav1d_cpu_flags_mask;
+
+#if TRIM_DSP_FUNCTIONS
+/* Since this function is inlined, unconditionally setting a flag here will
+ * enable dead code elimination in the calling function. */
+#if ARCH_AARCH64 || ARCH_ARM
+#if defined(__ARM_NEON) || defined(__APPLE__) || defined(_WIN32) || ARCH_AARCH64
+ flags |= DAV1D_ARM_CPU_FLAG_NEON;
+#endif
+#elif ARCH_PPC64LE
+#if defined(__VSX__)
+ flags |= DAV1D_PPC_CPU_FLAG_VSX;
+#endif
+#elif ARCH_RISCV
+#if defined(__riscv_v)
+ flags |= DAV1D_RISCV_CPU_FLAG_V;
+#endif
+#elif ARCH_X86
+#if defined(__AVX512F__) && defined(__AVX512CD__) && \
+ defined(__AVX512BW__) && defined(__AVX512DQ__) && \
+ defined(__AVX512VL__) && defined(__AVX512VNNI__) && \
+ defined(__AVX512IFMA__) && defined(__AVX512VBMI__) && \
+ defined(__AVX512VBMI2__) && defined(__AVX512VPOPCNTDQ__) && \
+ defined(__AVX512BITALG__) && defined(__GFNI__) && \
+ defined(__VAES__) && defined(__VPCLMULQDQ__)
+ flags |= DAV1D_X86_CPU_FLAG_AVX512ICL |
+ DAV1D_X86_CPU_FLAG_AVX2 |
+ DAV1D_X86_CPU_FLAG_SSE41 |
+ DAV1D_X86_CPU_FLAG_SSSE3 |
+ DAV1D_X86_CPU_FLAG_SSE2;
+#elif defined(__AVX2__)
+ flags |= DAV1D_X86_CPU_FLAG_AVX2 |
+ DAV1D_X86_CPU_FLAG_SSE41 |
+ DAV1D_X86_CPU_FLAG_SSSE3 |
+ DAV1D_X86_CPU_FLAG_SSE2;
+#elif defined(__SSE4_1__) || defined(__AVX__)
+ flags |= DAV1D_X86_CPU_FLAG_SSE41 |
+ DAV1D_X86_CPU_FLAG_SSSE3 |
+ DAV1D_X86_CPU_FLAG_SSE2;
+#elif defined(__SSSE3__)
+ flags |= DAV1D_X86_CPU_FLAG_SSSE3 |
+ DAV1D_X86_CPU_FLAG_SSE2;
+#elif ARCH_X86_64 || defined(__SSE2__) || \
+ (defined(_M_IX86_FP) && _M_IX86_FP >= 2)
+ flags |= DAV1D_X86_CPU_FLAG_SSE2;
+#endif
+#endif
+#endif
+
+ return flags;
+}
+
+#endif /* DAV1D_SRC_CPU_H */