[Warner306]

Hi everyone,

I seem to be having with some 1080p movie files.

I like to select the "automatiaclly detect black bars" in MadVR as I use that option to move subtitles into the active video area and also to zoom away very small black bars (projection setup).

This option works great with 4k files, but with certain 1080p files such as Harry Potter 3 and LOTR 1,2,3 (extended) I just have an infinite number of dropped frames when this option is selected. I would say around 50% of the 1080p files I have are affected and it's pretty random.

Note that I never seem to have this issue with 4k files My graphics card is a 1080ti which eats up 1080p files at very high NGU settings without an issue. 

But I really want the option to "enable hard coded black bars" with 1080p files.

Does anyone have a solution for this or know what setting is causing this?

 Can you determine the source of the subtitle tracks? What format are they compared to the comparable 4K files? 

You could try playing the same file with MPC-BE with it's internal subtitle renderer to determine if XySubFilter is causing the problem. You should be using DXVA2 copy-back for hardware decoding because D3D11 still doesn't provide proper support for black bar detection.