#8455: libaom-av1 damages brightness range by switching yuvj420p to yuv420p
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Reporter: john123 | Owner: (none)
Type: enhancement | Status: open
Priority: wish | Component: avcodec
Version: git-master | Resolution:
Keywords: libaom | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by Balling):
* status: new => open
Comment:
yuvj4xxp or more correctly the "j" part of it that specifies full range is
deprecated in favour of setting -vf
scale=out_color_matrix=bt709:'''out_range=pc''' -color_primaries bt709
-color_trc bt709 -colorspace bt709 '''-color_range pc'''
It was deprecated for a 11 years
(98aea87b1a3a96b9d82deca09291aaec2f54399e) yet even in 2018 somebody was
still adding workarounds (80757bed89c361fe2dc56eb61f4cb3b9f9b1aedc due to
https://news.ycombinator.com/item?id=20036710). Either undeprecate it or
do something that will not print these problems for new formats like
jpeg2000 encoder or av1.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8455#comment:13>
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