Hi. I have some insurance-related videos I am shooting on my phone. Once they are shot, I want to strip out the audio. So I am copying the videos from my phone to my Windows 11 PC (at which point I can open it in any video player and it plays fine), and then I use the Convert/Save function to change the mp4 file, using profile "Video - H.264 + Mp3 (MP4)", where all I have done is unchecked the "Audio" box. It then processes the video and does indeed create a new video with no audio. However, then things get weird.
If I open that resulting video in VLC, it looks fine.
If I open the resulting video in "Movies and TV", the default player in Windows, it plays upside-down.
If I open the resulting video in "Windows Media Player", it also plays upside-down.
I found instructions for flipping a video in VLC, which uses the Video codec tab, Filters, and Video transformation filter. So now it works in the other players, but is upside-down in VLC.
BUT ALSO that only works if I've already done one run-through to remove the audio. If I take the original video and make both changes at once, it moves the video like 90-degrees, and I think it's a different 90-degrees depending on which player you view it on. So at this point I would have to make two passes to end up with a video that works on most players.
Why is VLC "flipping" the video on the initial conversion, and why is it only flipped on non-VLC players?