an update of my situation...
i uninstall the ffdshow by the codecmanager.exe in the bsplayer folder. and the overlay mixer mode seems to work again. the video plays correctly and the desktop mode is also working.
the default mode also plays the video well, but no desktop mode.
the filter now is "Mpeg4s Decoder DMO"
is it the win7 built-in decoder?
well, it solved part of the problem... i can play files in desktop mode again(overlay mixer).
but i like ffdshow decoder. it has more options and the quality is better.
so the ffdshow can't work with bsplayer anymore? and it's installed by bsplayer itself... that's very strange.
does anyone know what might cause this strange situation?
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