[Cin] New libdav1d, ICC profile support in ffm[eg git
phylsmith2017 at gmail.com
Fri Mar 13 01:46:13 CET 2020
Dav1d 0.6.0 has been upgraded in Cinelerra and checked into GIT. Thanks
for the notify.
On Thu, Mar 12, 2020 at 6:22 AM Andrew Randrianasulu <
randrianasulu at gmail.com> wrote:
> Fresh news!
> But where things really got interesting for the Intel/AMD processors was
> the much faster 10-bit decoding of AV1 content with dav1d 0.6.0 for both
> Intel and AMD.
> Very significant gains in this case.
> ---quote end---
> In ffmpeg we can see
> API: add AV_PKT_DATA_ICC_PROFILE to AVPacketSideDataType
> and next few patches ....
> comment in avcodec.h says:
> + * ICC profile data consisting of an opaque octet buffer following the
> + * format described by ISO 15076-1.
> + */
> + AV_PKT_DATA_ICC_PROFILE,
> --end of quote----
> pdf itself is huge, but hopefully other libs already have something?
> v4 ICC Specification
> This version is technically identical to ISO 15076-1:2010, which is
> available from ISO.
> This is the most widely used version, first published in 2001.
> Specification ICC.1:2010-12 (Profile version 18.104.22.168)
> Image technology colour management - Architecture, profile format, and
> data structure
> Strange enough, but website littlecms.com doesn't work for me ....
> Anyway, hopefully no-one need to *print* films right now, so it all
> will be about monitors and files..
> I may misunderstand something, but whole point of color management
> is to get same color on slightly different devices?
> So, if you work with Monitor A and you have color profile for your monitor,
> you can store this profile somewhere in image and now video file, and
> on load supported player/editor will auto-correct things, relative to
> another (monitor B)
> output device, so you can work on colors across few monitors in different
> locations, say.
> I may misunderstand this, never feel special need for such fine-tuning of
> Cin mailing list
> Cin at lists.cinelerra-gg.org
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