全部运行C++的DSP框架kfr-4.2.1中的例子examples

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全部运行C++的DSP框架kfr-4.2.1中的例子examples

下载：https://github.com/kfrlib/kfr/releases


https://github.com/kfrlib/kfr
Documentation home:
https://www.kfrlib.com/newdocs/


不是用 cmake ..  make sudo make install了  
而是新的方法 用的cmake提供的build工具 而非make




解压 kfr-4.2.1.zip
cd kfr-4.2.1/    （靠，这个又不需要了 ，明白了）

1. 报错：
   
2. FileNotFoundError: [Errno 2] No such file or directory: '../svg/bessel_lowpass12.svg'
   
3. 
   
4. 修改：python_plot.hpp文件中第142行：
   
5. 查找命令： find ./ -name "python_plot.*"
   
6. 输出源码的位置：./include/kfr/io/python_plot.hpp
   
7. 位置：-- Installing: /usr/local/include/kfr/io/python_plot.hpp
   
8. plot_show(name, x, concat_args(options, "file='../svg/" + name + ".svg'"));
   
9. 改为：
   
10. plot_show(name, x, concat_args(options, "file='./svg/" + name + ".svg'"));

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直接进入例子目录：cd examples/
修改例子里面的CMakeLists.txt文件内容：

1. cmake_minimum_required(VERSION 3.15)
   
2. 
   
3. project("main")     # 我加的
   
4. 
   
5. SET(CMAKE_CXX_STANDARD 17)   # 我加的
   
6. 
   
7. # Binary output directories  靠，有了这个就不需要改官方的代码了 python_plot.hpp
   
8. set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${PROJECT_BINARY_DIR}/bin)
   
9. set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${PROJECT_BINARY_DIR}/bin)
   
10. 
    
11. file(MAKE_DIRECTORY ${PROJECT_BINARY_DIR}/svg)
    
12. 
    
13. message("KFR_DIR(参数传入进来的) = " ${KFR_DIR})   # 我加的
    
14. # add_子目录 需要子目录里必须有CMakeLists.txt文件的
    
15. add_subdirectory(${KFR_DIR} kfr-bin)    # 我加的
    
16. 
    
17. add_executable(biquads biquads.cpp)
    
18. target_link_libraries(biquads kfr use_arch)
    
19. 
    
20. add_executable(iir iir.cpp)
    
21. target_link_libraries(iir kfr use_arch)
    
22. 
    
23. add_executable(window window.cpp)
    
24. target_link_libraries(window kfr use_arch)
    
25. 
    
26. add_executable(fir fir.cpp)
    
27. target_link_libraries(fir kfr use_arch)
    
28. 
    
29. if (ENABLE_DFT)
    
30.     target_link_libraries(fir kfr_dft use_arch)
    
31.     target_compile_definitions(fir PRIVATE -DHAVE_DFT)
    
32. endif ()
    
33. 
    
34. add_executable(sample_rate_conversion sample_rate_conversion.cpp)
    
35. target_link_libraries(sample_rate_conversion kfr kfr_io use_arch)
    
36. 
    
37. if (ENABLE_DFT)
    
38.     add_executable(dft dft.cpp)
    
39.     target_link_libraries(dft kfr kfr_dft use_arch)
    
40.     add_executable(ccv ccv.cpp)
    
41.     target_link_libraries(ccv kfr kfr_dft use_arch)
    
42. endif ()
    
43. 
    
44. 
    
45. 
    
46. # cmake方式依赖Python头文件和库文件的配置 我加的
    
47. # 如果使用的是非系统目录下的 Python 可以通过指定 Python3_ROOT_DIR 改变查找路径
    
48. set(Python3_ROOT_DIR "/home/jiang/miniconda3/envs/py3_tf2_torch")
    
49. # 这里的环境 与 cmd的环境要一致  conda activate py3_tf2_torch
    
50. # 因为 有这个：#!/usr/bin/env python
    
51. find_package(Python3 COMPONENTS Interpreter Development REQUIRED)
    
52. find_package(Python3 COMPONENTS NumPy)
    
53. # find_package(PythonLibs REQUIRED)
    
54. message("python3头文件目录：" ${Python3_INCLUDE_DIRS})
    
55. message("python3的版本信息：" ${Python3_VERSION})
    
56. message("python3中numpy的版本信息：" ${Python3_NumPy_VERSION})
    
57. message("python3的库文件信息：" ${Python3_LIBRARIES})
    
58. 
    
59. # python的头文件 PYTHON_INCLUDE_DIRS
    
60. include_directories(${Python3_INCLUDE_DIRS})
    
61. # python的库文件 PYTHON_LIBRARIES   
    
62. # 解决报错： fatal error: Python.h: 没有那个文件或目录
    
63. target_link_libraries(iir ${Python3_LIBRARIES})
    

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mkdir build && cd build
cmake "-DKFR_DIR=/home/jiang/jjj_kfrlib_works/kfr-4.2.1/" -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_BUILD_TYPE=Release ..

1. -- The C compiler identification is GNU 8.4.0
   
2. -- The CXX compiler identification is Clang 7.0.0
   
3. -- Detecting C compiler ABI info
   
4. -- Detecting C compiler ABI info - done
   
5. -- Check for working C compiler: /usr/bin/cc - skipped
   
6. -- Detecting C compile features
   
7. -- Detecting C compile features - done
   
8. -- Detecting CXX compiler ABI info
   
9. -- Detecting CXX compiler ABI info - done
   
10. -- Check for working CXX compiler: /usr/bin/clang++ - skipped
    
11. -- Detecting CXX compile features
    
12. -- Detecting CXX compile features - done
    
13. KFR_DIR(参数传入进来的) = /home/jiang/jjj_kfrlib_works/kfr-4.2.1/
    
14. -- Detecting native cpu...
    
15. -- DETECTED_CPU=avx2
    
16. -- CPU_ARCH=avx2
    
17. -- Found Python3: /home/jiang/miniconda3/envs/py3_tf2_torch/bin/python3.6 (found version "3.6.10") found components: Interpreter Development Development.Module Development.Embed
    
18. -- Found Python3: /home/jiang/miniconda3/envs/py3_tf2_torch/include/python3.6m (found version "3.6.10") found components: NumPy Interpreter Development.Module
    
19. python3头文件目录：/home/jiang/miniconda3/envs/py3_tf2_torch/include/python3.6m
    
20. python3的版本信息：3.6.10
    
21. python3中numpy的版本信息：1.19.5
    
22. python3的库文件信息：/home/jiang/miniconda3/envs/py3_tf2_torch/lib/libpython3.6m.so
    
23. -- Configuring done
    
24. -- Generating done
    
25. -- Build files have been written to: /home/jiang/jjj_kfrlib_works/kfr-4.2.1/examples/build

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cmake "-DKFR_DIR=/home/jiang/jjj_kfrlib_works/kfr-4.2.1/" -DCMAKE_C_COMPILER=/usr/bin/gcc-7 -DCMAKE_CXX_COMPILER=/usr/bin/g++-7 -DCMAKE_BUILD_TYPE=Release ..

1. -- The C compiler identification is GNU 7.5.0
   
2. -- The CXX compiler identification is GNU 7.5.0
   
3. -- Detecting C compiler ABI info
   
4. -- Detecting C compiler ABI info - done
   
5. -- Check for working C compiler: /usr/bin/gcc-7 - skipped
   
6. -- Detecting C compile features
   
7. -- Detecting C compile features - done
   
8. -- Detecting CXX compiler ABI info
   
9. -- Detecting CXX compiler ABI info - done
   
10. -- Check for working CXX compiler: /usr/bin/g++-7 - skipped
    
11. -- Detecting CXX compile features
    
12. -- Detecting CXX compile features - done
    
13. KFR_DIR(参数传入进来的) = /home/jiang/jjj_kfrlib_works/kfr-4.2.1/
    
14. -- Detecting native cpu...
    
15. -- DETECTED_CPU=avx2
    
16. -- CPU_ARCH=avx2
    
17. -- Found Python3: /home/jiang/miniconda3/envs/py3_tf2_torch/bin/python3.6 (found version "3.6.10") found components: Interpreter Development Development.Module Development.Embed
    
18. -- Found Python3: /home/jiang/miniconda3/envs/py3_tf2_torch/include/python3.6m (found version "3.6.10") found components: NumPy Interpreter Development.Module
    
19. python3头文件目录：/home/jiang/miniconda3/envs/py3_tf2_torch/include/python3.6m
    
20. python3的版本信息：3.6.10
    
21. python3中numpy的版本信息：1.19.5
    
22. python3的库文件信息：/home/jiang/miniconda3/envs/py3_tf2_torch/lib/libpython3.6m.so
    
23. -- Configuring done
    
24. -- Generating done
    
25. -- Build files have been written to: /home/jiang/jjj_kfrlib_works/kfr-4.2.1/examples/build

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cmake --build .  (不需要手动编译，用cmake自动编译)

1. Scanning dependencies of target kfr_dft
   
2. [  4%] Building CXX object kfr-bin/CMakeFiles/kfr_dft.dir/include/kfr/dft/impl/convolution-impl.cpp.o
   
3. [  8%] Building CXX object kfr-bin/CMakeFiles/kfr_dft.dir/include/kfr/dft/impl/dft-impl-f32.cpp.o
   
4. [ 12%] Building CXX object kfr-bin/CMakeFiles/kfr_dft.dir/include/kfr/dft/impl/dft-impl-f64.cpp.o
   
5. [ 16%] Building CXX object kfr-bin/CMakeFiles/kfr_dft.dir/include/kfr/dft/impl/fft-impl-f32.cpp.o
   
6. [ 20%] Building CXX object kfr-bin/CMakeFiles/kfr_dft.dir/include/kfr/dft/impl/fft-impl-f64.cpp.o
   
7. [ 25%] Linking CXX static library libkfr_dft.a
   
8. [ 25%] Built target kfr_dft
   
9. Scanning dependencies of target ccv
   
10. [ 29%] Building CXX object CMakeFiles/ccv.dir/ccv.cpp.o
    
11. [ 33%] Linking CXX executable bin/ccv
    
12. [ 33%] Built target ccv
    
13. Scanning dependencies of target fir
    
14. [ 37%] Building CXX object CMakeFiles/fir.dir/fir.cpp.o
    
15. [ 41%] Linking CXX executable bin/fir
    
16. [ 41%] Built target fir
    
17. Scanning dependencies of target biquads
    
18. [ 45%] Building CXX object CMakeFiles/biquads.dir/biquads.cpp.o
    
19. [ 50%] Linking CXX executable bin/biquads
    
20. [ 50%] Built target biquads
    
21. Scanning dependencies of target window
    
22. [ 54%] Building CXX object CMakeFiles/window.dir/window.cpp.o
    
23. [ 58%] Linking CXX executable bin/window
    
24. [ 58%] Built target window
    
25. Scanning dependencies of target dft
    
26. [ 62%] Building CXX object CMakeFiles/dft.dir/dft.cpp.o
    
27. [ 66%] Linking CXX executable bin/dft
    
28. [ 66%] Built target dft
    
29. Scanning dependencies of target iir
    
30. [ 70%] Building CXX object CMakeFiles/iir.dir/iir.cpp.o
    
31. [ 75%] Linking CXX executable bin/iir
    
32. [ 75%] Built target iir
    
33. Scanning dependencies of target kfr_io
    
34. [ 79%] Building CXX object kfr-bin/CMakeFiles/kfr_io.dir/include/kfr/io/impl/audiofile-impl.cpp.o
    
35. [ 83%] Linking CXX static library libkfr_io.a
    
36. [ 83%] Built target kfr_io
    
37. Scanning dependencies of target sample_rate_conversion
    
38. [ 87%] Building CXX object CMakeFiles/sample_rate_conversion.dir/sample_rate_conversion.cpp.o
    
39. [ 91%] Linking CXX executable bin/sample_rate_conversion
    
40. [ 91%] Built target sample_rate_conversion
    
41. Scanning dependencies of target detect_cpu
    
42. [ 95%] Building CXX object kfr-bin/CMakeFiles/detect_cpu.dir/cmake/detect_cpu.cpp.o
    
43. [100%] Linking CXX executable ../bin/detect_cpu
    
44. [100%] Built target detect_cpu

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In this case you do not need to build KFR binaries manually, cmake will do it automatically for you.
use_arch is a virtual target that exists only in cmake environment.
It's intended for setting correct arch flags for you own executables, you should not use it in GCC command line

zjl

我想看BP帖子，没有权限。。。