https://bugs.winehq.org/show_bug.cgi?id=29852
--- Comment #10 from Dmitry Timoshkov dmitry@baikal.ru --- (In reply to Bruno Jesus from comment #9)
Created attachment 50781 [details] non-working attempt patch
I thought this would be easy but I lack the required knowledge in the area to understand frames, bits per pixel and other video related things. The attached patch is an attempt to invert the frames, it works weirdly and with many artifacts but I'm attaching anyway because maybe someone can spot some obvious problem in the process.
Hi Bruno,
biHeight is not supposed to be negative neither in source nor in destination bitmaps. I have several different VFW codecs with source around and neither of them handles or expects a negative biHeight. Do you know where it comes from? Is that what application specified or something that Wine returned at some point?