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/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