diff --git a/ffmpeg/tst-build.sh b/ffmpeg/tst-build.sh
new file mode 100755
index 0000000000000000000000000000000000000000..ba2378572464b83043d56f54512601d653139b7e
--- /dev/null
+++ b/ffmpeg/tst-build.sh
@@ -0,0 +1,143 @@
+#!/bin/bash
+
+# Desc: 编译测试工具
+# Args:
+#   $1 -- g_install_dir，可选参数，指定工具安装路径
+# 说明：
+#   编译脚本是名字固定为tst-build.sh的bash脚本
+#   如果不指定参数g_install_dir，那么默认安装在当前目录.install路径下
+#   编译失败则将.install目录重命名为.install.fail
+#   .install目录存在表示工具已经编译过，不再重复编译
+
+g_tool_dir="$(dirname "$(realpath "$0")")"
+g_install_dir="$1"
+
+build_dep_pkg_list="
+    ffmpeg
+    gcc
+    make
+    nasm
+    dnf-utils
+"
+
+build_tool() {
+    command -v ffmpeg  >/dev/null 2>&1 || { echo "ERROR: ffmpeg not found in PATH"; return 1; }
+    command -v ffprobe >/dev/null 2>&1 || { echo "ERROR: ffprobe not found in PATH"; return 1; }
+    echo "system ffmpeg: $(ffmpeg -version | head -1)"
+
+    echo "=== installing build dependencies ==="
+    local tmpdir spec_file
+    tmpdir=$(mktemp -d) || return 1
+    (
+        cd "$tmpdir" || exit 1
+        yumdownloader --source ffmpeg || exit 1
+        rpm2cpio ffmpeg-*.src.rpm | cpio -idm '*.spec' 2>/dev/null || exit 1
+    )
+    spec_file=$(find "$tmpdir" -maxdepth 1 -name '*.spec' | head -1)
+    if [ -n "$spec_file" ]; then
+        yum-builddep -y "$spec_file" || echo "WARNING: yum-builddep failed, configure may detect fewer features"
+    else
+        echo "WARNING: failed to extract .spec from SRPM, falling back to package name"
+        yum-builddep -y ffmpeg || echo "WARNING: yum-builddep failed, configure may detect fewer features"
+    fi
+    rm -rf "$tmpdir"
+
+    cp -r "$g_tool_dir" "$g_install_dir" && cd "$g_install_dir/ffmpeg" || return 1
+
+    echo "=== applying patch ==="
+    patch -p1 < x.patch || return 1
+
+    echo "=== running configure ==="
+    local sys_flags supported
+    sys_flags=$(ffmpeg -version | grep '^configuration:' | sed 's/^configuration: //')
+    if [ -z "$sys_flags" ]; then
+        echo "ERROR: failed to extract configuration from 'ffmpeg -version'"
+        return 1
+    fi
+
+    supported=$(./configure --help | grep -oE -- '--[a-zA-Z0-9_-]+' | sort -u)
+    if [ -z "$supported" ]; then
+        echo "ERROR: failed to parse supported options from './configure --help'"
+        return 1
+    fi
+
+    local -a args=()
+    eval "args=( $sys_flags )"
+
+    local -a filtered=()
+    local opt key check_key skipped=0 has_nonfree=0 has_fdk=0 has_gpl=0
+    for opt in "${args[@]}"; do
+        key="${opt%%=*}"
+        [[ "$key" != --* ]] && continue
+
+        case "$key" in
+            --optflags|--extra-cflags|--extra-cxxflags|--extra-objcflags|\
+            --extra-ldflags|--extra-ldexeflags|--extra-ldsoflags|--extra-libs)
+                echo "SKIP build-env option: $key"
+                skipped=$((skipped + 1))
+                continue ;;
+        esac
+
+        local alt_key="$key"
+        if [[ "$key" == --enable-* ]]; then
+            alt_key="${key/--enable-/--disable-}"
+        elif [[ "$key" == --disable-* ]]; then
+            alt_key="${key/--disable-/--enable-}"
+        fi
+        if echo "$supported" | grep -qxF -e "$key" -e "$alt_key"; then
+            filtered+=( "$opt" )
+            [[ "$key" == "--enable-nonfree" ]] && has_nonfree=1
+            [[ "$key" == "--enable-libfdk-aac" ]] && has_fdk=1
+            [[ "$key" == "--enable-gpl" ]] && has_gpl=1
+        else
+            echo "SKIP unsupported option: $opt"
+            skipped=$((skipped + 1))
+        fi
+    done
+
+    if (( has_fdk && has_gpl && !has_nonfree )); then
+        echo "ADD --enable-nonfree (required by --enable-libfdk-aac with --enable-gpl)"
+        filtered+=( "--enable-nonfree" )
+    fi
+
+    echo "configure: ${#filtered[@]} options kept, $skipped skipped"
+    ./configure "${filtered[@]}" || return 1
+
+    echo "=== building test utilities (HOSTPROGS) ==="
+    make SKIP_LIBS=1 -j"$(nproc)" \
+        tests/audiogen tests/videogen tests/rotozoom \
+        tests/tiny_psnr tests/tiny_ssim tests/base64 tests/audiomatch \
+        || return 1
+}
+
+# 下面代码建议保持不变
+main() {
+    [ -z "$g_install_dir" ] && g_install_dir="${g_tool_dir}.install"
+
+    if [ -f "$g_install_dir" ]; then
+        echo "$g_install_dir not dir"
+        return 1
+    elif [ -d "$g_install_dir" ]; then
+        echo "dir $g_install_dir existed, ignore rebuild"
+        return 0
+    else
+        echo "build to dir $g_install_dir"
+    fi
+
+    for pkg in $build_dep_pkg_list; do
+        rpm -q "$pkg" || yum install -y "$pkg"
+    done
+
+    mkdir -p "$g_install_dir"
+    if build_tool; then
+        echo "build $g_tool_dir success, dir $g_install_dir"
+        return 0
+    else
+        [ -e "${g_install_dir}.fail" ] && rm -rf "${g_install_dir}.fail"
+        mv "$g_install_dir" "${g_install_dir}.fail"
+        echo "build $g_tool_dir fail, dir $g_install_dir"
+        return 1
+    fi
+}
+
+main "$@"
diff --git a/ffmpeg/x.patch b/ffmpeg/x.patch
new file mode 100644
index 0000000000000000000000000000000000000000..2916f14a20e7f12e8ae75496c18ac7a1810afeb3
--- /dev/null
+++ b/ffmpeg/x.patch
@@ -0,0 +1,70 @@
+diff --git a/Makefile b/Makefile
+index 01c04d6bba..e8acf8b290 100644
+--- a/Makefile
++++ b/Makefile
+@@ -129,12 +129,16 @@ include $(SRC_PATH)/$(1)/Makefile
+ include $(SRC_PATH)/ffbuild/library.mak
+ endef
+ 
++ifndef SKIP_LIBS
+ $(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))
+ 
+ include $(SRC_PATH)/fftools/Makefile
++endif # !SKIP_LIBS
++
+ include $(SRC_PATH)/doc/Makefile
+ include $(SRC_PATH)/doc/examples/Makefile
+ 
++ifndef SKIP_LIBS
+ $(ALLFFLIBS:%=lib%/version.o): libavutil/ffversion.h
+ 
+ $(PROGS): %$(PROGSSUF)$(EXESUF): %$(PROGSSUF)_g$(EXESUF)
+@@ -148,6 +152,7 @@ endif
+ 
+ %$(PROGSSUF)_g$(EXESUF): $(FF_DEP_LIBS)
+ 	$(call LINK,$(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS))
++endif # !SKIP_LIBS
+ 
+ VERSION_SH  = $(SRC_PATH)/ffbuild/version.sh
+ ifeq ($(VERSION_TRACKING),yes)
+diff --git a/tests/Makefile b/tests/Makefile
+index 4b3fa6a54a..a1b2c3d4e5 100644
+--- a/tests/Makefile
++++ b/tests/Makefile
+@@ -359,5 +359,24 @@ testclean::
+ 
+ include $(SRC_PATH)/tests/checkasm/Makefile
+ 
++ifdef SKIP_LIBS
++# Use system ffmpeg/ffprobe, create stub libraries for deps
++ffmpeg$(PROGSSUF)$(EXESUF):
++	@echo "SYSLINK ffmpeg (using system binary)"
++	@cp -f $$(which ffmpeg) $@
++
++ffprobe$(PROGSSUF)$(EXESUF):
++	@echo "SYSLINK ffprobe (using system binary)"
++	@cp -f $$(which ffprobe) $@
++
++$(FF_DEP_LIBS):
++	@echo "STUB    $@"
++	@mkdir -p $$(dir $@) && ar rcs $@
++
++$(FF_STATIC_DEP_LIBS):
++	@echo "STUB    $@"
++	@mkdir -p $$(dir $@) && ar rcs $@
++endif
++
+ .PHONY: fate* lcov lcov-reset
+ .INTERMEDIATE: coverage.info
+diff --git a/tests/fate/checkasm.mak b/tests/fate/checkasm.mak
+index a1b2c3d4e5..f6g7h8i9j0 100644
+--- a/tests/fate/checkasm.mak
++++ b/tests/fate/checkasm.mak
+@@ -94,6 +94,8 @@ $(FATE_CHECKASM): tests/checkasm/checkasm$(EXESUF)
+ $(FATE_CHECKASM): CMD = run tests/checkasm/checkasm$(EXESUF) --test=$(@:fate-checkasm-%=%)
+ $(FATE_CHECKASM): CMP = null
+ 
++ifndef SKIP_LIBS
+ FATE += $(FATE_CHECKASM)
++endif
+ fate-checkasm: $(FATE_CHECKASM)