[x265] Unclear VUI options

[Mario Rohkrämer]

Am 22.02.2014, 00:07 Uhr, schrieb dave <dtyx265 at gmail.com>:

> by the way, there are other options where bt709 is possible, can that be  
> used to determine range?

I don't ecpect this to be easily "detectable"; instead I would rather  
assume that TV scale is in general more probable. Even movies which in  
general comply with TV range may still occasionally exceed it (that's what  
a "headroom" was made for), therefore scanning the video input for any  
exceeding values may not be a safe detection method.

AviSynth usually forces "coring" during operations in YUV space except you  
override it via parameter for some filters, so one would assume that you  
have a purpose (e.g. handling fully saturated colors only possible in  
computer graphics, not in nature).

After all, I am not the ultimate colorimetry expert. In this case, I would  
recommend to discuss this matter in the forum. There are more people who  
may have some experience with this not specifically HEVC related topic.

-- 

Fun and success!
Mario *LigH* Rohkrämer
mailto:contact at ligh.de