diff -Naur fft2d/CMakeLists.txt fft2dcp/CMakeLists.txt
--- fft2d/CMakeLists.txt	1970-01-01 08:00:00.000000000 +0800
+++ fft2dcp/CMakeLists.txt	2024-03-02 15:53:43.547521200 +0800
@@ -0,0 +1,100 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cmake_minimum_required(VERSION 3.16)
+
+# Project  创建工程文件
+project(fft2d C CXX)
+
+# 添加C源文件到项目中
+set(SOURCE_FILES_FFTSG2D
+    ${CMAKE_CURRENT_SOURCE_DIR}/fftsg2d.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/fftsg.c)
+set(SOURCE_FILES_FFTSG3D
+    ${CMAKE_CURRENT_SOURCE_DIR}/fftsg3d.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/fftsg.c)
+
+#生成动态库.so文件，默认在build文件夹中
+add_library(fft4f2d SHARED ${CMAKE_CURRENT_SOURCE_DIR}/fft4f2d.c)
+add_library(fftsg2d SHARED ${SOURCE_FILES_FFTSG2D})
+add_library(fftsg3d SHARED ${SOURCE_FILES_FFTSG3D})
+add_library(shrtdct SHARED ${CMAKE_CURRENT_SOURCE_DIR}/shrtdct.c)
+add_library(alloc SHARED ${CMAKE_CURRENT_SOURCE_DIR}/alloc.c)
+
+#设置编译模式
+set(CMAKE_BUILD_TYPE "Release" )
+
+#生成文件到指定位置
+set(LIBRARY_OUTPUT_PATH ${CMAKE_INSTALL_PREFIX}/lib)
+set(LIBRARY_INCLUDE_PATH ${CMAKE_INSTALL_PREFIX}/include)
+set(TEST_SRC_PATH ${CMAKE_CURRENT_SOURCE_DIR}/sample2d)
+
+#fftsg2dt测试程序
+set(TEST_FFTSG2D 
+    ${TEST_SRC_PATH}/fftsg2dt.c)
+add_executable(fftsg2dt ${TEST_FFTSG2D})
+target_link_libraries(fftsg2dt fftsg2d m alloc)
+
+#fftsg3dt测试程序
+set(TEST_FFTSG3D
+    ${TEST_SRC_PATH}/fftsg3dt.c)
+add_executable(fftsg3dt ${TEST_FFTSG3D})
+target_link_libraries(fftsg3dt fftsg3d m alloc)
+
+#shrtdct测试程序
+set(TEST_SHRTDCT
+    ${TEST_SRC_PATH}/shrtdctt.c)
+add_executable(shrtdctt ${TEST_SHRTDCT})
+target_link_libraries(shrtdctt shrtdct m alloc)
+
+#fft4f2d测试程序
+set(TEST_FFT4F2D
+    ${TEST_SRC_PATH}/fft4f2dt.c)
+add_executable(fft4f2dt ${TEST_FFT4F2D})
+target_link_libraries(fft4f2dt fft4f2d m alloc)
+
+INSTALL(FILES 
+  fft4f2d.h 
+  fftsg.h 
+  fftsg2d.h 
+  fftsg3d.h 
+  alloc.h
+  shrtdct.h
+  DESTINATION ${LIBRARY_INCLUDE_PATH} COMPONENT Headers
+)
+
+install(TARGETS fft4f2d
+LIBRARY     DESTINATION    ${LIBRARY_OUTPUT_PATH}
+ARCHIVE     DESTINATION    ${LIBRARY_OUTPUT_PATH}
+)
+
+install(TARGETS fftsg2d
+LIBRARY     DESTINATION    ${LIBRARY_OUTPUT_PATH}
+ARCHIVE     DESTINATION    ${LIBRARY_OUTPUT_PATH}
+)
+
+install(TARGETS fftsg3d
+LIBRARY     DESTINATION    ${LIBRARY_OUTPUT_PATH}
+ARCHIVE     DESTINATION    ${LIBRARY_OUTPUT_PATH}
+)
+
+install(TARGETS shrtdct
+LIBRARY     DESTINATION    ${LIBRARY_OUTPUT_PATH}
+ARCHIVE     DESTINATION    ${LIBRARY_OUTPUT_PATH}
+)
+
+install(TARGETS alloc
+LIBRARY     DESTINATION    ${LIBRARY_OUTPUT_PATH}
+ARCHIVE     DESTINATION    ${LIBRARY_OUTPUT_PATH}
+)
+
diff -Naur fft2d/fft4f2d.h fft2dcp/fft4f2d.h
--- fft2d/fft4f2d.h	1970-01-01 08:00:00.000000000 +0800
+++ fft2dcp/fft4f2d.h	2024-03-02 15:51:35.486254100 +0800
@@ -0,0 +1,11 @@
+#ifndef _FFT4F2D_H_
+#define _FFT4F2D_H_
+
+#include <math.h>
+
+void cdft2d(int, int, int, double **, int *, double *);
+void rdft2d(int, int, int, double **, int *, double *);
+void ddct2d(int, int, int, double **, double **, int *, double *);
+void ddst2d(int, int, int, double **, double **, int *, double *);
+
+#endif /*_FFT4F2D_H_*/
\ No newline at end of file
diff -Naur fft2d/fftsg.h fft2dcp/fftsg.h
--- fft2d/fftsg.h	1970-01-01 08:00:00.000000000 +0800
+++ fft2dcp/fftsg.h	2024-03-02 15:51:35.489254000 +0800
@@ -0,0 +1,13 @@
+#ifndef _FFTSG_H_

+#define _FFTSG_H_

+

+#include <math.h>

+

+void cdft(int, int, double *, int *, double *);

+void rdft(int, int, double *, int *, double *);

+void ddct(int, int, double *, int *, double *);

+void ddst(int, int, double *, int *, double *);

+void dfct(int, double *, double *, int *, double *);

+void dfst(int, double *, double *, int *, double *);

+

+#endif /*_FFTSG_H_*/
\ No newline at end of file
diff -Naur fft2d/fftsg2d.h fft2dcp/fftsg2d.h
--- fft2d/fftsg2d.h	1970-01-01 08:00:00.000000000 +0800
+++ fft2dcp/fftsg2d.h	2024-03-02 15:51:35.491254100 +0800
@@ -0,0 +1,12 @@
+#ifndef _FFTSG2D_H_
+#define _FFTSG2D_H_
+
+#include <math.h>
+
+void cdft2d(int, int, int, double **, double *, int *, double *);
+void rdft2d(int, int, int, double **, double *, int *, double *);
+void rdft2dsort(int, int, int, double **);
+void ddct2d(int, int, int, double **, double *, int *, double *);
+void ddst2d(int, int, int, double **, double *, int *, double *);
+    
+#endif /*_FFTSG2D_H_*/
\ No newline at end of file
diff -Naur fft2d/fftsg3d.h fft2dcp/fftsg3d.h
--- fft2d/fftsg3d.h	1970-01-01 08:00:00.000000000 +0800
+++ fft2dcp/fftsg3d.h	2024-03-02 15:51:35.493254000 +0800
@@ -0,0 +1,12 @@
+#ifndef _FFTSG3D_H_
+#define _FFTSG3D_H_
+
+#include <math.h>
+
+void cdft3d(int, int, int, int, double ***, double *, int *, double *);
+void rdft3d(int, int, int, int, double ***, double *, int *, double *);
+void rdft3dsort(int, int, int, int, double ***);
+void ddct3d(int, int, int, int, double ***, double *, int *, double *);
+void ddst3d(int, int, int, int, double ***, double *, int *, double *);
+    
+#endif /*_FFTSG3D_H_*/
\ No newline at end of file
diff -Naur fft2d/shrtdct.h fft2dcp/shrtdct.h
--- fft2d/shrtdct.h	1970-01-01 08:00:00.000000000 +0800
+++ fft2dcp/shrtdct.h	2024-03-02 15:51:35.496254400 +0800
@@ -0,0 +1,9 @@
+#ifndef _SHRTDCTT_H_
+#define _SHRTDCTT_H_
+
+#include <math.h>
+
+void ddct8x8s(int isgn, double **a);
+void ddct16x16s(int isgn, double **a);
+    
+#endif /*_SHRTDCTT_H_*/
\ No newline at end of file