Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
mingw64(qt6multimedia.dll)
mingw64(qt6multimediawidgets.dll)
mingw64(qt6spatialaudio.dll)
mingw64(windowsmediaplugin.dll)
mingw64-pkgconfig(qt6multimedia)
mingw64-pkgconfig(qt6multimediawidgets)
mingw64-pkgconfig(qt6spatialaudio)
mingw64-qt6-qtmultimedia

Requires :

mingw64(d3d9.dll)
mingw64(dxva2.dll)
mingw64(evr.dll)
mingw64(kernel32.dll)
mingw64(libgcc_s_seh-1.dll)
mingw64(libstdc++-6.dll)
mingw64(libwinpthread-1.dll)
mingw64(mf.dll)
mingw64(mfplat.dll)
mingw64(mfreadwrite.dll)
mingw64(msvcrt.dll)
mingw64(ole32.dll)
mingw64(propsys.dll)
mingw64(qt6core.dll)
mingw64(qt6gui.dll)
mingw64(qt6multimedia.dll)
mingw64(qt6network.dll)
mingw64(qt6widgets.dll)
mingw64(shell32.dll)
mingw64(shlwapi.dll)
mingw64(user32.dll)
mingw64(winmm.dll)
mingw64-crt
mingw64-filesystem >= 95
mingw64-pkg-config
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1

Content of RPM :
/usr/share/licenses/mingw64-qt6-qtmultimedia
/usr/share/licenses/mingw64-qt6-qtmultimedia/GPL-2.0-only.txt
/usr/share/licenses/mingw64-qt6-qtmultimedia/GPL-3.0-only.txt
/usr/share/licenses/mingw64-qt6-qtmultimedia/LGPL-2.1-or-later.txt
/usr/share/licenses/mingw64-qt6-qtmultimedia/LGPL-3.0-only.txt
/usr/share/licenses/mingw64-qt6-qtmultimedia/Qt-GPL-exception-1.0.txt
/usr/x86_64-w64-mingw32/sys-root/mingw/bin/Qt6Multimedia.dll
/usr/x86_64-w64-mingw32/sys-root/mingw/bin/Qt6MultimediaWidgets.dll
/usr/x86_64-w64-mingw32/sys-root/mingw/bin/Qt6SpatialAudio.dll
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qaudiobufferoutput_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qaudiodecoder_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qaudiodevice_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qaudiohelpers_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qaudioringbuffer_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qaudiostatemachine_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qaudiostatemachineutils_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qaudiosystem_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qcamera_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qcameradevice_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qcapturablewindow_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qcominitializer_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qcomptr_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qcomtaskresource_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qerrorinfo_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qgstreamer_platformspecificinterface_p.h
/usr/x86_64-w64-mingw32/sys-root/mingw/include/qt6/QtMultimedia/6.8.1/QtMultimedia/private/qhwvideobuffer_p.h
There is 249 files more in these RPM.