海思3516 交叉编译opencv3.4.1

ubuntu版本号: Ubuntu 18.04.5 LTS

opencv版本号:opencv-3.4.1

opencv3.4.1下载链接:opencv-3.4.1相关库-C 文档类资源-CSDN下载

1. 编译opencv3.4.1

在opencv3.4.1下创建build，并创建arm-himix410-linux.cmake文件；粘贴以下内容； set( CMAKE_SYSTEM_NAME Linux ) set( CMAKE_SYSTEM_PROCESSOR arm ) set( CMAKE_C_COMPILER arm-himix410-linux-gcc ) set( CMAKE_CXX_COMPILER arm-himix410-linux-g   )

具体工具链名称自行；

2. 编译

cmake -D CMAKE_BUILD_TYPE=Release \   -D CMAKE_INSTALL_PREFIX=../output \   -D CMAKE_C_COMPILER=arm-himix410-linux-gcc \   -D BUILD_SHARED_LIBS=ON \   -D BUILD_ZLIB=ON \   -D WITH_ITT=OFF \   -D BUILD_opencv_highgui=ON \   -D ZLIB_INCLUDE_DIR=../3rdparty/zlib ../  

其中:BUILD_SHARED_LIBS动态库是否可以控制；BUILD_opencv_highgui控制是否生成opencv-highgui.so库;

make -j8

这个过程可能会遇到一些错误，每个虚拟机的编译结果都不一样；

3. 调用接口编译时出错；

错误1:undefined reference to `__itt_api_version_ptr__3_0' 解决: -D WITH_ITT=OFF \

错误2:opencv undefined reference to `jpeg_CreateCompress'

原因:缺少jpeg库; 并需要 -ljpeg 链接;

编译: ./configure CC=arm-himix410-linux-gcc --prefix=/usr/local/jpegsrc.v8c/install --host=arm-linux

错误3:Unable to locate package libjasper-dev, 就是和jasper库相关的, 网上说apt-get installlibjasper-dev类似的；甚至下载jasper不能交叉编译开源库；

解决: 加上LIBS = -L/usr/local/opencv-3.4.1/output/share/OpenCV/3rdparty/lib

分析: 编译生成output库路下有一些库！

错误4：undefined reference to `TIFFWriteDirectory'

原因: 和tiff库相关, 并链接 -ltiff； 虽然上面output/share/OpenCV/3rdparty/lib路径下有，但还是报错了，只有三方库的交叉编译；

编译tiff-4.0.4库,依赖与zlib和jpeg库；

./configure CC=arm-himix410-linux-gcc \ CXX=arm-himix410-linux-g   \ --prefix=$(pwd)/install \ --host=arm-linux \ --with-zlib-include-dir=/usr/local/zlib-1.2.3/install/include \ --with-zlib-lib-dir=/usr/local/zlib-1.2.3/install/lib \ --with-jpeg-include-dir=/usr/local/jpeg-8c/install/include \ --with-jpeg-lib-dir=/usr/local/jpeg-8c/install/lib

export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/tiff-4.4.0/install/lib/pkgconfig

还有其他错误没有完全记录...

4. Qt调用接口环境构建

INCLUDEPATH  = $$(PWD)/include \                $$(PWD)/include/opencv2 \                $$(PWD)/include/opencv  INCLUDEPATH  = /usr/local/jpeg-8c/install/include INCLUDEPATH  = /usr/local/tiff-4.4.0/install/include INCLUDEPATH  = /usr/local/opencv-3.4.1/output/include  LIBS  = -L$$(PWD)/lib #包括海思相关库 LIBS  = -L/usr/local/opencv-3.4.1/output/share/OpenCV/3rdparty/lib LIBS  = -L/usr/local/jpeg-8c/install/lib LIBS  = -L/usr/local/tiff-4.4.0/install/lib LIBS  = -L/usr/local/opencv-3.4.1/output/lib  LIBS  = -lmpi -live -lupvqe -ldnvqe -lVoiceEngine -lsecurec -fopenmp -lQtNetwork -lQtCore -lpthread -ldl #hisi LIBS  = -lopencv_ml \         -lopencv_objdetect \         -lopencv_shape \         -lopencv_stitching \         -lopencv_superres \         -lopencv_videostab \         -lopencv_calib3d \         -lopencv_videoio \         -lopencv_imgcodecs \         -lopencv_features2d \         -lopencv_video \         -lopencv_photo \         -lopencv_imgproc \         -lopencv_flann \         -lopencv_core  LIBS  = -llibjasper -llibtiff -ltiff -lzlib -ljpeg -lavcodec -lavformat -lavutil -lswscale -lm -lrt

编译过程参考了很多网上博客，不贴，记录编译过程；

5. 总结:

只有一个改变其他版本opencv库，从低版到高版等；

编译只是第一步， 在重新编译之前，也可能需要添加一些东西来犯错误；

动态库需要自己部署带板/lib软链接；

6. 补充

补充1:以下两个警告，虽然没有报错，但是很不爽；

(a) warning: libopencv_highgui.so.3.4, needed by /usr/local/opencv-3.4.1/output/lib/libopencv_stitching.so, not found (try using -rpath or -rpath-link)

(b) warning: libz.so.1, needed by /usr/local/tiff-4.4.0/install/lib/libtiff.so, not found (try using -rpath or -rpath-link)

翻译是：libopencv_highgui.so.3.4, 被xxlibopencv_stitching.so需要,not found ;明明链接了库...

-lopencv_highgui \  -lopencv_stitching

在lopencv_stitching前面添加上lopencv_highgui就ok了,或许是依赖的原因把;

同理: libtiff.so需要libz.so.1；

交叉编译了三方库:zlib-1.2.3 

LIBS += -L/usr/local/zlib-1.2.3/install/lib

同时在ltiff前链接-lz:

LIBS += -lz -llibjasper -llibtiff -ltiff