Я более недели пытаюсь скомпилировать OpenCV 3.1.0 для Android с NDK r18 на Ubuntu 18.04.
Я использовал следующую команду:
cmake -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON \
-DANDROID_NDK="/home/qamaruddin/Downloads/android-ndk-r18-linux-x86_64/android-ndk-r18/" \
-DCMAKE_TOOLCHAIN_FILE="/home/qamaruddin/Downloads/android-ndk-r18-linux-x86_64/android-ndk-r18/build/cmake/android.toolchain.cmake" \
-DANDROID_NATIVE_API_LEVEL=19 \
-DANDROID_ABI="armeabi-v7a" \
-DWITH_CUDA=OFF \
-DWITH_MATLAB=OFF \
-DBUILD_ANDROID_EXAMPLES=OFF \
-DBUILD_DOCS=OFF \
-DBUILD_PERF_TESTS=OFF \
-DBUILD_TESTS=OFF \
-DCMAKE_CXX_COMPILER=/usr/bin/clang++ \
-DCMAKE_C_COMPILER=/usr/bin/clang \
-DOPENCV_EXTRA_MODULES_PATH="/opt/opencv_contrib/modules/" \
-DCMAKE_INSTALL_PREFIX:PATH="/home/mig-ocv/ocv-android-310/" \
-DEXECUTABLE_OUTPUT_PATH:PATH="/home/mig-ocv/ocv-android-310/" \
-DCMAKE_RUNTIME_OUTPUT_DIRECTORY:PATH="/home/mig-ocv/ocv-android-310/" \
-DCMAKE_BUILD_TYPE=Release \
/opt/opencv
Выполнено make & make install / strip.
Я пробовал разные версии OpenCV 3, такие как 3.1.0, 3.4.3 и 3.4.0. Я также пробовал NDKr15c, NDKr17c и NDKr18c.
Я пробовал следующие варианты:
- Изменить версию NDK
- Изменить версию OpenCV 3
- Установите с помощью скрипта Python, расположенного в opencv / platform / androind / setup.py
- Сборка с помощью CMAKE
- Используйте Ninja для CMAKE, но это дает ошибку: «ninja: error: loading 'build / build.global.ninja': Нет такого файла или каталога»
- Установить без ниндзя с CMAKE
На данный момент использование указанной выше команды для сборки CMAKE выполняется успешно, но я не могу изменить целевой каталог установки, поскольку он всегда встраивается в / usr / local /, и когда я проверяю целевой каталог, у него нет знакомого OpenCV для Структура Android, которая:
1- и т. Д. 2- java 3- родной -> jni -> включить
Интересно, что не так в моем процессе, из-за чего так сложно собрать OpenCV 3 из исходников для Android с OpenCV Contrib.
Обратите внимание, что $ ANDROID_HOME установлен в каталог Android SDK в моей системе, а также установлен $ ANDROID_NDK.
Я видел все повторяющиеся вопросы на StackOverflow и других форумах, но в моем случае ни один из них не работает.
Когда я пытаюсь построить с помощью Ninja с помощью этой команды:
cmake -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON \
-DANDROID_NDK="$HOME/Downloads/android-ndk-r17b/" \
-DCMAKE_TOOLCHAIN_FILE="$HOME/Downloads/android-ndk-r17b/build/cmake/android.toolchain.cmake" \
-DANDROID_NATIVE_API_LEVEL=21 \
-DANDROID_ABI="armeabi-v7a" \
-DWITH_CUDA=OFF \
-DWITH_MATLAB=OFF \
-DBUILD_ANDROID_EXAMPLES=OFF \
-DBUILD_DOCS=OFF \
-DBUILD_PERF_TESTS=OFF \
-DBUILD_TESTS=OFF \
-DCMAKE_CXX_COMPILER=/usr/bin/clang++ \
-DCMAKE_C_COMPILER=/usr/bin/clang \
-DOPENCV_EXTRA_MODULES_PATH="$HOME/ocv/opencv_contrib/modules/" \
-DCMAKE_INSTALL_PREFIX:PATH="$HOME/agusta/ocv-android-310/" \
-DEXECUTABLE_OUTPUT_PATH:PATH="$HOME/agusta/ocv-android-310/" \
-DCMAKE_RUNTIME_OUTPUT_DIRECTORY:PATH="$HOME/agusta/ocv-android-310/" \
-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_MAKE_PROGRAM=/usr/bin/ninja \
$HOME/ocv/opencv
Я получил:
CMake Deprecation Warning at CMakeLists.txt:72 (cmake_policy):
The OLD behavior for policy CMP0022 will be removed from a future version
of CMake.
The cmake-policies(7) manual explains that the OLD behaviors of all
policies are deprecated and that a policy should be set to OLD only under
specific short-term circumstances. Projects should be ported to the NEW
behavior and not rely on setting a policy to OLD.
CMake Deprecation Warning at CMakeLists.txt:77 (cmake_policy):
The OLD behavior for policy CMP0026 will be removed from a future version
of CMake.
The cmake-policies(7) manual explains that the OLD behaviors of all
policies are deprecated and that a policy should be set to OLD only under
specific short-term circumstances. Projects should be ported to the NEW
behavior and not rely on setting a policy to OLD.
CMake Deprecation Warning at CMakeLists.txt:82 (cmake_policy):
The OLD behavior for policy CMP0042 will be removed from a future version
of CMake.
The cmake-policies(7) manual explains that the OLD behaviors of all
policies are deprecated and that a policy should be set to OLD only under
specific short-term circumstances. Projects should be ported to the NEW
behavior and not rely on setting a policy to OLD.
-- Check for working CXX compiler: /home/qamaruddin/Downloads/android-ndk-r17b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++
CMake Error: Generator: execution of make failed. Make command was: "/usr/bin/ninja" "cmTC_c4cee/fast"
-- Check for working CXX compiler: /home/qamaruddin/Downloads/android-ndk-r17b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ -- broken
CMake Error at /usr/local/share/cmake-3.12/Modules/CMakeTestCXXCompiler.cmake:45 (message):
The C++ compiler
"/home/qamaruddin/Downloads/android-ndk-r17b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: /home/qamaruddin/agusta/temp/CMakeFiles/CMakeTmp
Run Build Command:"/usr/bin/ninja" "cmTC_c4cee/fast"
No such file or directory
Generator: execution of make failed. Make command was: "/usr/bin/ninja" "cmTC_c4cee/fast"
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:93 (project)
-- Configuring incomplete, errors occurred!
See also "/home/qamaruddin/agusta/temp/CMakeFiles/CMakeOutput.log".
See also "/home/qamaruddin/agusta/temp/CMakeFiles/CMakeError.log".
You have changed variables that require your cache to be deleted.
Configure will be re-run and you may have to reset some variables.
The following variables have changed:
CMAKE_CXX_COMPILER= /usr/bin/clang++
CMAKE_C_COMPILER= /usr/bin/clang
-- Generating done
CMake Warning:
Manually-specified variables were not used by the project:
BUILD_ANDROID_EXAMPLES
BUILD_DOCS
BUILD_PERF_TESTS
BUILD_TESTS
EXECUTABLE_OUTPUT_PATH
OPENCV_EXTRA_MODULES_PATH
WITH_CUDA
WITH_MATLAB
-- Build files have been written to: /home/qamaruddin/agusta/temp
