How to properly call C++ library function in Java Activity - c++

Question

I am using GitHub in-paint library https://github.com/cheind/inpaint in android studio
and trying to call jni fuction of inpainter in main activity but it is not resolving or getting recognized.
C++ is new to me so i am having issue.
in criminisi_inpainter.cpp file
there is this function
void inpaintCriminisi(
cv::InputArray image,
cv::InputArray targetMask,
cv::InputArray sourceMask,
int patchSize)
{
CriminisiInpainter ci;
ci.setSourceImage(image.getMat());
ci.setSourceMask(sourceMask.getMat());
ci.setTargetMask(targetMask.getMat());
ci.setPatchSize(patchSize);
ci.initialize();
while (ci.hasMoreSteps()) {
ci.step();
}
ci.image().copyTo(image.getMat());
}
this native function i have to call in main activity
public native void inpaintCriminisi( ? , ? ,? , int z);
The issue is i do not understand what parameters would be provided here in main activity (JAVA)
In nativelib.cpp i am exporting jnicall function i give object parameters which is not exact parameters that should be defined.
extern "C"
JNIEXPORT void JNICALL
Java_com_example_raweeda_applicationc_MainActivity_inpaintCriminisi(JNIEnv *env, jobject instance,
jobject a, jobject b, jobject c,
jint xl) {
// TODO
inpaintCriminisi(x,y,z,xl);
parameters are not object it just an example
}
this is the error i am recieving
Build command failed.
Error while executing process C:\Users\abc\AppData\Local\Android\Sdk\cmake\3.6.4111459\bin\cmake.exe with arguments {--build D:\2019_android\ApplicationC\app\.externalNativeBuild\cmake\debug\x86 --target native-lib}
[1/3] Building CXX object CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o
[2/3] Building CXX object CMakeFiles/native-lib.dir/src/main/cpp/criminisi_inpainter.cpp.o
FAILED: C:\Users\abc\AppData\Local\Android\Sdk\ndk-bundle\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=i686-none-linux-android19 --gcc-toolchain=C:/Users/abc/AppData/Local/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/windows-x86_64 -Dnative_lib_EXPORTS -ID:/opencv-sdk/OpenCV-android-sdk/sdk/native/jni/include --sysroot C:/Users/abc/AppData/Local/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/windows-x86_64/sysroot -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -mstackrealign -fno-addrsig -Wa,--noexecstack -Wformat -Werror=format-security -stdlib=libc++ -std=c++11 -frtti -fexceptions -O0 -fno-limit-debug-info -fPIC -MD -MT CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o -MF CMakeFiles\native-lib.dir\src\main\cpp\native-lib.cpp.o.d -o CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o -c D:\2019_android\ApplicationC\app\src\main\cpp\native-lib.cpp
D:\2019_android\ApplicationC\app\src\main\cpp\native-lib.cpp:13:5: warning: declaration does not declare anything [-Wmissing-declarations]
cv::InputArray ;
^~~~~~~~~~~~~~
D:\2019_android\ApplicationC\app\src\main\cpp\native-lib.cpp:23:39: error: expected '(' for function-style cast or type construction
inpaintCriminisi( cv::InputArray image,
~~~~~~~~~~~~~~ ^
D:\2019_android\ApplicationC\app\src\main\cpp\native-lib.cpp:24:28: error: expected '(' for function-style cast or type construction
cv::InputArray targetMask,
~~~~~~~~~~~~~~ ^
D:\2019_android\ApplicationC\app\src\main\cpp\native-lib.cpp:25:28: error: expected '(' for function-style cast or type construction
cv::InputArray sourceMask,
~~~~~~~~~~~~~~ ^
D:\2019_android\ApplicationC\app\src\main\cpp\native-lib.cpp:26:17: error: expected '(' for function-style cast or type construction
int patchSize);
~~~ ^
1 warning and 4 errors generated.
FAILED: C:\Users\abc\AppData\Local\Android\Sdk\ndk-bundle\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=i686-none-linux-android19 --gcc-toolchain=C:/Users/abc/AppData/Local/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/windows-x86_64 -Dnative_lib_EXPORTS -ID:/opencv-sdk/OpenCV-android-sdk/sdk/native/jni/include --sysroot C:/Users/abc/AppData/Local/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/windows-x86_64/sysroot -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -mstackrealign -fno-addrsig -Wa,--noexecstack -Wformat -Werror=format-security -stdlib=libc++ -std=c++11 -frtti -fexceptions -O0 -fno-limit-debug-info -fPIC -MD -MT CMakeFiles/native-lib.dir/src/main/cpp/criminisi_inpainter.cpp.o -MF CMakeFiles\native-lib.dir\src\main\cpp\criminisi_inpainter.cpp.o.d -o CMakeFiles/native-lib.dir/src/main/cpp/criminisi_inpainter.cpp.o -c D:\2019_android\ApplicationC\app\src\main\cpp\criminisi_inpainter.cpp
In file included from D:\2019_android\ApplicationC\app\src\main\cpp\criminisi_inpainter.cpp:7:
D:\2019_android\ApplicationC\app\src\main\cpp/timer.h:83:1: error: extraneous closing brace ('}')
}
^
D:\2019_android\ApplicationC\app\src\main\cpp\criminisi_inpainter.cpp:10:10: fatal error: 'opencv' file not found
#include "opencv"
^~~~~~~~
2 errors generated.
ninja: build stopped: subcommand failed.
because in nativelib.cpp