Quote:
Originally Posted by sneaker_ger
He's doing YV12-> RGB32 -> YV12, not RGB32 -> YV12 -> RGB32.
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Yes, there is still loss
Have you ever tried redoing a DVD menu or titles in an RGB program like photoshop, AE, video editors, ... etc? . It deteriorates noticably, edges becomes blurry, even before using lossy compression. It's due to color model (colorspace) conversion - the color information is upscaled then downscaled.
Other types of content, like fast moving live action, you typically won't notice unless you zoom in and go frame by frame