#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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Comment (by Balling):
Okay, your file is full range it has 255 Y, which is not allowed in
limited range (only 1-254 are allowed). That is good!
Next: ffmpeg.exe -i small-33.mp4 -vf
scale=out_color_matrix=bt601:out_range=pc,format=yuv420p -c:v libaom-av1
-color_primaries bt470bg -colorspace smpte170m -color_trc smpte170m
-color_range pc out.mp4
produces perfect file with 255 same place and NO changes in mpv when you
alt-tab on my reference display. I will attach. Even --gamut-warning is
almost the same (but then again, mpv is bad with that option in full
range). Please use normal player.
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Ticket URL: <https://trac.ffmpeg.org/ticket/8455#comment:20>
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