[x265] Possible bug: Chrominance planes shifted when saturation is low

Mario Rohkrämer contact at ligh.de
Thu May 1 12:27:50 CEST 2014


Here is a report about encoded material with very low brightness and  
saturation, especially at the edges, and the chrominance is shifted away  
 from the luminance, to the right.

http://forum.doom9.org/showthread.php?p=1679520#post1679520

I hope the reporter will be able to upload a sample to investigate if the  
issue is in the encoding or decoding part.

But one line in the report makes it suspicious:

+----
And then i encoded with default settings (encoded a Yuy file and manually  
told it the resolution 1920x1080, other than it was as is).
+----

If he entered a different resolution for x265 than the YUV file really  
has, the shift is no surprise...

No panic yet. Just be aware.

-- 

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


More information about the x265-devel mailing list