Qt: Work around Qt DirectShow bug (fixes #829)
Qt: Work around Qt DirectShow bug (fixes #829)

Iniquitatis/mgba,Iniquitatis/mgba,Iniquitatis/mgba,libretro/mgba,libretro/mgba,Iniquitatis/mgba,mgba-emu/mgba,Anty-Lemon/mgba,libretro/mgba,libretro/mgba,libretro/mgba,Anty-Lemon/mgba,mgba-emu/mgba,mgba-emu/mgba,Anty-Lemon/mgba,mgba-emu/mgba,Anty-Lemon/mgba