Merge pull request #26948 from mshabunin:fix-videoio-test-params

videoio: print test params instead of indexes #26948
_videoio_ test names changed - use string instead of index.
E.g. `videoio_read.threads/0` is now `videoio_read.threads/h264_0_RAW`.
It allows to filter tests independently of the platform.

**Notes:**
- not all tests has been updated - only simpler ones and those which have varying parameters depending on platform

modules/videoio/test/test_mfx.cpp

@@ -160,8 +160,9 @@ inline static std::string videoio_mfx_name_printer(const testing::TestParamInfo<
 {
     std::ostringstream out;
     const Size sz = get<0>(info.param);
-    const std::string ext = get<2>(info.param);
-    out << sz.width << "x" << sz.height << "x" << get<1>(info.param) << "x" << ext.substr(1, ext.size() - 1);
+    out << sz.height << "p" << "_"
+        << get<1>(info.param) << "FPS" << "_"
+        << extToStringSafe(get<2>(info.param));
     return out.str();
 }