diff --git a/libavutil/aarch64/intreadwrite.h b/libavutil/aarch64/intreadwrite.h
new file mode 100644
index 0000000000..4ce2d64987
--- /dev/null
+++ b/libavutil/aarch64/intreadwrite.h
@@ -0,0 +1,42 @@
+/*
+ * 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_AARCH64_INTREADWRITE_H
+#define AVUTIL_AARCH64_INTREADWRITE_H
+
+#if HAVE_INTRINSICS_NEON
+
+#include <arm_neon.h>
+
+#define AV_COPY128 AV_COPY128
+static av_always_inline void AV_COPY128(void *d, const void *s)
+{
+    uint8x16_t tmp = vld1q_u8((const uint8_t *)s);
+    vst1q_u8((uint8_t *)d, tmp);
+}
+
+#define AV_ZERO128 AV_ZERO128
+static av_always_inline void AV_ZERO128(void *d)
+{
+    uint8x16_t zero = vdupq_n_u8(0);
+    vst1q_u8((uint8_t *)d, zero);
+}
+
+#endif /* HAVE_INTRINSICS_NEON */
+
+#endif /* AVUTIL_AARCH64_INTREADWRITE_H */
diff --git a/libavutil/intreadwrite.h b/libavutil/intreadwrite.h
index 120bdbc8f0..ffd15a1502 100644
--- a/libavutil/intreadwrite.h
+++ b/libavutil/intreadwrite.h
@@ -64,7 +64,9 @@ typedef union {
 
 #include "config.h"
 
-#if ARCH_MIPS
+#if ARCH_AARCH64
+#   include "aarch64/intreadwrite.h"
+#elif ARCH_MIPS
 #   include "mips/intreadwrite.h"
 #elif ARCH_PPC
 #   include "ppc/intreadwrite.h"