[x264-devel] does h264/x264 support HDR

Nikolay Sidorov nickola.sid at gmail.com
Thu May 16 19:37:13 CEST 2019


How I understood hdr is device depending features Example camcorder FS5
outgoing hlg with bt2020 color space.
 Where can find coordination between x264 mnemonics with real devices?

чт, 16 Май 2019, 18:35 Vittorio Giovara vittorio.giovara at gmail.com:

> 10 bit is a requirement for HDR, together with bt2020 and optional
> metadata depending on your usecase (pq/hlg)
> x264 supports setting smpte2084 and arib-b67 transfers and bt2020 color
> space and is 10 bit, the only missing piece is setting metadata for pq
> (smpte2086)
> so for HLG, hdr is fully supported by x264, for HDR10 someone needs to
> provide a patch to set the optional metadata
>
> Vittorio
>
> On Thu, May 16, 2019 at 8:48 AM Nikolay Sidorov <nickola.sid at gmail.com>
> wrote:
>
>> HDR is High Dynamic Range imaging of brightness & contrast and maybe
>> 8-bit color scheme.
>> https://ru.m.wikipedia.org/wiki/High_Dynamic_Range_Imaging
>>
>>
>> чт, 16 Май 2019, 15:36 qw applemax82 at 163.com:
>>
>>> >> Does x264 support REC.2020 color space?
>>> >
>>> >x264 supports 10-bit bit depth and can signal Rec.2020/Rec.2100 color
>>> >primaries/transfer characteristics
>>>
>>>
>>> Could you show me one example(x264 command) where x264 encode 10bit with
>>> Rec.2020 color space?
>>>
>>> Thanks!
>>>
>>> Regard
>>>
>>> Andrew
>>>
>>>
>>> At 2019-05-16 19:29:15, "Henrik Gramner" <henrik at gramner.com> wrote:
>>> >On Thu, May 16, 2019 at 1:04 PM qw <applemax82 at 163.com> wrote:
>>> >> Does x264 support REC.2020 color space?
>>> >
>>> >x264 supports 10-bit bit depth and can signal Rec.2020/Rec.2100 color
>>> >primaries/transfer characteristics
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>
>
> --
> Vittorio
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