Merge pull request #27284 from dkurt:java_video_capture_read

Java VideoCapture buffered stream constructor #27284

### Pull Request Readiness Checklist

resolves #26809

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake

modules/python/src2/cv2.cpp

@@ -45,7 +45,9 @@ typedef std::vector<DMatch> vector_DMatch;
 typedef std::vector<String> vector_String;
 typedef std::vector<std::string> vector_string;
 typedef std::vector<Scalar> vector_Scalar;
+#ifdef HAVE_OPENCV_OBJDETECT
 typedef std::vector<aruco::Dictionary> vector_Dictionary;
+#endif // HAVE_OPENCV_OBJDETECT
 
 typedef std::vector<std::vector<char> > vector_vector_char;
 typedef std::vector<std::vector<Point> > vector_vector_Point;

modules/python/src2/cv2_convert.hpp

@@ -182,6 +182,29 @@ struct PyOpenCV_Converter
     }
 };
 
+// There is conflict between "long long" and "int64".
+// They are the same type on some 32-bit platforms.
+template<typename T>
+struct PyOpenCV_Converter
+    < T, typename std::enable_if< std::is_same<long long, T>::value && !std::is_same<long long, int64>::value >::type >
+{
+    static inline PyObject* from(const long long& value)
+    {
+        return PyLong_FromLongLong(value);
+    }
+
+    static inline bool to(PyObject* obj, long long& value, const ArgInfo& info)
+    {
+        CV_UNUSED(info);
+        if(!obj || obj == Py_None)
+            return true;
+        else if(PyLong_Check(obj))
+            value = PyLong_AsLongLong(obj);
+        else
+            return false;
+        return value != (long long)-1 || !PyErr_Occurred();
+    }
+};
 
 // --- uchar
 template<> bool pyopencv_to(PyObject* obj, uchar& value, const ArgInfo& info);

modules/python/src2/hdr_parser.py

@@ -190,6 +190,8 @@ class CppHeaderParser(object):
                 angle_stack[-1] += 1
             elif arg_type == "struct":
                 arg_type += " " + w
+            elif prev_w in ["signed", "unsigned", "short", "long"] and w in ["char", "short", "int", "long"]:
+                arg_type += " " + w
             elif arg_type and arg_type != "~":
                 arg_name = " ".join(word_list[wi:])
                 break

modules/python/src2/typing_stubs_generation/predefined_types.py

@@ -28,6 +28,7 @@ _PREDEFINED_TYPES = (
     PrimitiveTypeNode.int_("uint32_t"),
     PrimitiveTypeNode.int_("size_t"),
     PrimitiveTypeNode.int_("int64_t"),
+    PrimitiveTypeNode.int_("long long"),
     PrimitiveTypeNode.float_("float"),
     PrimitiveTypeNode.float_("double"),
     PrimitiveTypeNode.bool_("bool"),