[wp-trac] [WordPress Trac] #62285: HDR AVIF is corrupt in the media library (encoded as SDR)

[WordPress Trac]

#62285: HDR AVIF is corrupt in the media library (encoded as SDR)
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 Reporter:  gregbenz      |       Owner:  adamsilverstein
     Type:  defect (bug)  |      Status:  assigned
 Priority:  normal        |   Milestone:  6.8
Component:  Media         |     Version:
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by adamsilverstein):

 > 8-bit was a safer choice in the past when most images had SDR luminance
 with Rec709 primaries. That no longer holds true.

 > 10-bit is the minimum for quality HDR, and in some cases 12-bit may be
 required to avoid banding

 @gregbenz - so this means you recommend changing the default maximum bit
 depth to 10 or 12?

 What would the impact on file size be?

 We would certainly need this filter if we change the defaults, so adding
 it makes sense. Manual testing with the filter welcome.

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Ticket URL: <https://core.trac.wordpress.org/ticket/62285#comment:7>
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