Add opencv recipe

pythonforandroid/recipes/opencv/__init__.py

@@ -0,0 +1,53 @@
+import os
+import sh
+from pythonforandroid.toolchain import (
+    NDKRecipe,
+    Recipe,
+    current_directory,
+    info,
+    shprint,
+)
+from multiprocessing import cpu_count
+
+
+class OpenCVRecipe(NDKRecipe):
+    version = '2.4.10.1'
+    url = 'https://github.com/Itseez/opencv/archive/{version}.zip'
+    #md5sum = '2ddfa98e867e6611254040df841186dc'
+    depends = ['numpy']
+    patches = ['patches/p4a_build-2.4.10.1.patch']
+    generated_libraries = ['cv2.so']
+
+    def prebuild_arch(self, arch):
+        self.apply_patches(arch)
+
+    def get_recipe_env(self,arch):
+        env = super(OpenCVRecipe, self).get_recipe_env(arch)
+        env['PYTHON_ROOT'] = self.ctx.get_python_install_dir()
+        env['ANDROID_NDK'] = self.ctx.ndk_dir
+        env['ANDROID_SDK'] = self.ctx.sdk_dir
+        env['SITEPACKAGES_PATH'] = self.ctx.get_site_packages_dir()
+        return env
+
+    def build_arch(self, arch):
+        with current_directory(self.get_build_dir(arch.arch)):
+            env = self.get_recipe_env(arch)
+            cvsrc = self.get_build_dir(arch.arch)
+            lib_dir = os.path.join(self.ctx.get_python_install_dir(), "lib")
+
+            shprint(sh.cmake,
+                '-DP4A=ON','-DANDROID_ABI={}'.format(arch.arch),
+                '-DCMAKE_TOOLCHAIN_FILE={}/platforms/android/android.toolchain.cmake'.format(cvsrc),
+                '-DPYTHON_INCLUDE_PATH={}/include/python2.7'.format(env['PYTHON_ROOT']),
+                '-DPYTHON_LIBRARY={}/lib/libpython2.7.so'.format(env['PYTHON_ROOT']),
+                '-DPYTHON_NUMPY_INCLUDE_DIR={}/numpy/core/include'.format(env['SITEPACKAGES_PATH']),
+                '-DANDROID_EXECUTABLE={}/tools/android'.format(env['ANDROID_SDK']),                    
+                '-DBUILD_TESTS=OFF', '-DBUILD_PERF_TESTS=OFF', '-DBUILD_EXAMPLES=OFF', '-DBUILD_ANDROID_EXAMPLES=OFF',
+                '-DPYTHON_PACKAGES_PATH={}'.format(env['SITEPACKAGES_PATH']),
+                cvsrc,
+            _env=env)
+            shprint(sh.make,'-j',str(cpu_count()),'opencv_python')
+            shprint(sh.cmake,'-DCOMPONENT=python','-P','./cmake_install.cmake')
+            sh.cp('-a',sh.glob('./lib/{}/lib*.so'.format(arch.arch)),lib_dir)
+
+recipe = OpenCVRecipe()

pythonforandroid/recipes/opencv/patches/p4a_build-2.4.10.1.patch

@@ -0,0 +1,66 @@
+diff --git a/cmake/OpenCVDetectPython.cmake b/cmake/OpenCVDetectPython.cmake
+index 31c2c1e..c890917 100644
+--- a/cmake/OpenCVDetectPython.cmake
++++ b/cmake/OpenCVDetectPython.cmake
+@@ -36,7 +36,7 @@ if(PYTHON_EXECUTABLE)
+     unset(PYTHON_VERSION_FULL)
+   endif()
+
+-  if(NOT ANDROID AND NOT IOS)
++  if(P4A OR NOT ANDROID AND NOT IOS)
+     ocv_check_environment_variables(PYTHON_LIBRARY PYTHON_INCLUDE_DIR)
+     if(CMAKE_CROSSCOMPILING)
+       find_host_package(PythonLibs ${PYTHON_VERSION_MAJOR_MINOR})
+@@ -51,7 +51,7 @@ if(PYTHON_EXECUTABLE)
+     endif()
+   endif()
+
+-  if(NOT ANDROID AND NOT IOS)
++  if(P4A OR NOT ANDROID AND NOT IOS)
+     if(CMAKE_HOST_UNIX)
+       execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "from distutils.sysconfig import *; print get_python_lib()"
+                       RESULT_VARIABLE PYTHON_CVPY_PROCESS
+@@ -117,7 +117,7 @@ if(PYTHON_EXECUTABLE)
+                         OUTPUT_STRIP_TRAILING_WHITESPACE)
+       endif()
+     endif()
+-  endif(NOT ANDROID AND NOT IOS)
++  endif(P4A OR NOT ANDROID AND NOT IOS)
+
+   if(BUILD_DOCS)
+     find_host_program(SPHINX_BUILD sphinx-build)
+diff --git a/modules/python/CMakeLists.txt b/modules/python/CMakeLists.txt
+index 3c0f2fd..7ba234a 100644
+--- a/modules/python/CMakeLists.txt
++++ b/modules/python/CMakeLists.txt
+@@ -5,7 +5,7 @@
+ if(WIN32 AND CMAKE_BUILD_TYPE STREQUAL "Debug")
+   ocv_module_disable(python)
+ endif()
+-if(ANDROID OR IOS OR NOT PYTHONLIBS_FOUND OR NOT PYTHON_USE_NUMPY)
++if(ANDROID AND NOT P4A OR IOS OR NOT PYTHONLIBS_FOUND OR NOT PYTHON_USE_NUMPY)
+   ocv_module_disable(python)
+ endif()
+
+diff --git a/modules/androidcamera/src/camera_activity.cpp b/modules/androidcamera/src/camera_activity.cpp
+index 84db3e1..4222526 100644
+--- a/modules/androidcamera/src/camera_activity.cpp
++++ b/modules/androidcamera/src/camera_activity.cpp
+@@ -7,6 +7,7 @@
+ #include <string>
+ #include <vector>
+ #include <algorithm>
++#include <stdlib.h>
+ #include <opencv2/core/version.hpp>
+ #include "camera_activity.hpp"
+ #include "camera_wrapper.h"
+@@ -342,6 +343,8 @@ std::string CameraWrapperConnector::getPathLibFolder()
+
+                 char* pathEnd = strrchr(pathBegin, '/');
+                 pathEnd[1] = 0;
++                pathBegin = realpath((std::string(pathBegin)+"../../../../lib").c_str(), lineBuf);
++                pathBegin = strcat(pathBegin, "/");
+
+                 LOGD("Libraries folder found: %s", pathBegin);
+
+