--- a/include/libvideo2x/version_dispatch.h
+++ b/include/libvideo2x/version_dispatch.h
@@ -0,0 +1,20 @@
+#pragma once
+
+// x86-64 micro-arch function multi-versioning.
+//
+// On x86-64 targets, expands to a [[gnu::target_clones]] attribute that asks
+// GCC to emit AVX-512 (x86-64-v4), AVX2 (x86-64-v3) and baseline ("default")
+// clones of the annotated function, with an IFUNC dispatcher chosen at load
+// time based on CPU features.
+//
+// On non-x86 targets (e.g. aarch64) the feature modifiers "arch=x86-64-v?" are
+// rejected by the compiler's attribute parser, so this macro expands to
+// nothing -- the function compiles as a single unspecialized definition, which
+// is what the "default" clone would have selected at runtime anyway.
+
+#if defined(__x86_64__)
+#  define V2X_MULTIVERSION_X86_64 \
+    [[gnu::target_clones("arch=x86-64-v4", "arch=x86-64-v3", "default")]]
+#else
+#  define V2X_MULTIVERSION_X86_64
+#endif
--- a/src/avutils.cpp
+++ b/src/avutils.cpp
@@ -11,6 +11,7 @@
 
 #include "conversions.h"
 #include "logger_manager.h"
+#include "version_dispatch.h"
 
 namespace video2x {
 namespace avutils {
@@ -136,7 +137,7 @@
     return best_pix_fmt;
 }
 
-[[gnu::target_clones("arch=x86-64-v4", "arch=x86-64-v3", "default")]]
+V2X_MULTIVERSION_X86_64
 float get_frame_diff(AVFrame* frame1, AVFrame* frame2) {
     if (!frame1 || !frame2) {
         logger()->error("Invalid frame(s) provided for comparison");
--- a/src/conversions.cpp
+++ b/src/conversions.cpp
@@ -6,12 +6,13 @@
 #include <spdlog/spdlog.h>
 
 #include "logger_manager.h"
+#include "version_dispatch.h"
 
 namespace video2x {
 namespace conversions {
 
 // Convert AVFrame format
-[[gnu::target_clones("arch=x86-64-v4", "arch=x86-64-v3", "default")]]
+V2X_MULTIVERSION_X86_64
 AVFrame* convert_avframe_pix_fmt(AVFrame* src_frame, AVPixelFormat pix_fmt) {
     AVFrame* dst_frame = av_frame_alloc();
     if (dst_frame == nullptr) {
@@ -68,7 +69,7 @@
 }
 
 // Convert AVFrame to ncnn::Mat by copying the data
-[[gnu::target_clones("arch=x86-64-v4", "arch=x86-64-v3", "default")]]
+V2X_MULTIVERSION_X86_64
 ncnn::Mat avframe_to_ncnn_mat(AVFrame* frame) {
     AVFrame* converted_frame = nullptr;
 
@@ -108,7 +109,7 @@
 }
 
 // Convert ncnn::Mat to AVFrame with a specified pixel format (this part is unchanged)
-[[gnu::target_clones("arch=x86-64-v4", "arch=x86-64-v3", "default")]]
+V2X_MULTIVERSION_X86_64
 AVFrame* ncnn_mat_to_avframe(const ncnn::Mat& mat, AVPixelFormat pix_fmt) {
     int ret;
 
--- a/src/encoder.cpp
+++ b/src/encoder.cpp
@@ -11,6 +11,7 @@
 #include "avutils.h"
 #include "conversions.h"
 #include "libvideo2x/fsutils.h"
+#include "version_dispatch.h"
 
 namespace video2x {
 namespace encoder {
@@ -267,7 +268,7 @@
     return 0;
 }
 
-[[gnu::target_clones("arch=x86-64-v4", "arch=x86-64-v3", "default")]]
+V2X_MULTIVERSION_X86_64
 int Encoder::write_frame(AVFrame* frame, int64_t frame_idx) {
     AVFrame* converted_frame = nullptr;
     int ret;
@@ -339,7 +340,7 @@
     return 0;
 }
 
-[[gnu::target_clones("arch=x86-64-v4", "arch=x86-64-v3", "default")]]
+V2X_MULTIVERSION_X86_64
 int Encoder::flush() {
     int ret;
     AVPacket* enc_pkt = av_packet_alloc();
--- a/src/libvideo2x.cpp
+++ b/src/libvideo2x.cpp
@@ -13,6 +13,7 @@
 #include "logger_manager.h"
 #include "processor.h"
 #include "processor_factory.h"
+#include "version_dispatch.h"
 
 namespace video2x {
 
@@ -29,7 +30,7 @@
       hw_device_type_(hw_device_type),
       benchmark_(benchmark) {}
 
-[[gnu::target_clones("arch=x86-64-v4", "arch=x86-64-v3", "default")]]
+V2X_MULTIVERSION_X86_64
 int VideoProcessor::process(
     const std::filesystem::path in_fname,
     const std::filesystem::path out_fname