Good evening everyone! I have an issue which is driving me crazy!

Everytime I drag a .mp4 in kde, and then try to save it with H.264 lossless format, I end up with a video quite different from the original. The result seems to have less contrast, but I do not know how to explain it better. You can find a picture here:

https://drive.google.com/file/d/1-k661L ... sp=sharing

Any hint about that?

Thank you very very much for your help!

yep.. this is related to YUV colors management (i think) ... i was going completely crazy with this.. different contrast after a format conversion.... i have published on downloadable rendering profiles something that doesn't change the constrast... (to have an MP4 output like the original but compressed)

BTW this is something about:

https://invent.kde.org/multimedia/kdenlive/-/issues/411 (this is fixed but there are hints about the issue)
viewtopic.php?f=272&t=165832&p=432012&hilit=contrast+kdenlive#p432012
viewtopic.php?f=272&t=120227&p=395583&hilit=contrast+kdenlive#p395583

an also an old one frome me: viewtopic.php?f=272&t=142746&p=383625&hilit=contrast+kdenlive#p383625