Thank you for your suggestion, turning HA off did help with deinterlace at some point, it works BUT I can't find suitable deinterlace method:
ON (I am guessing its vertical filter/blend): deinterlace works, but the frame rate is reduced to 25fps (normally it should be ~50fps), and is considerably a bad deinterlacing method, which gives ghosty unsharpness in movements.
DOUBLE RATE: deinterlace works fine, frame rate is ok, but it gives a "shaking effect" that is clearly noticable on some video elements.
DOUBLE WEAVE: does not perform any deinterlacing.
WHERE IS BOB METHOD???
Deinterlacing with other well known video decoders (I will not mention them for commercial reasons) works fine, even with DXVA turned on.
The problems with deinterlace in hardware acceleration mode, can be caused by errors in drivers of video card, or wrong settings of videocard
I am using latest NVidia drivers. Videocard settings are set by default, I have no idea what else to change or how to find those "errors" (contact NVidia if there are any, that's not my or my machine's fault). Tried different video renders - nothing changed.
Please check whether you use the latest version of plugin. If not, you can download it from our website
I am using the latest version of plugin.
Waiting for Your reply, thank you in advance.