Coding-independent code points

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Coding-independent code points (CICP) is a way to signal the properties of a video or audio stream.{{Cite web|title=H.273 : Coding-independent code points for video signal type identification|url=https://www.itu.int/rec/T-REC-H.273/en|url-status=live|access-date=2021-09-12|website=www.itu.int|archive-url=https://web.archive.org/web/20180204201225/http://www.itu.int:80/rec/T-REC-H.273/en |archive-date=2018-02-04 }}{{Cite web|title=ISO/IEC 23001-8:2016|url=https://www.iso.org/cms/render/live/en/sites/isoorg/contents/data/standard/06/96/69661.html|access-date=2021-11-11|website=ISO|language=en}} It can describe the color profile of videos (and still images) in a simpler way than the use of ICC profiles.{{Cite web|title=CICP · AOMediaCodec/libavif Wiki|url=https://github.com/AOMediaCodec/libavif|access-date=2021-11-06|website=GitHub|language=en}} It is defined in both ITU-T H.273 and ISO/IEC 23091-2. It is used by multiple codecs including AVC{{Citation needed|date=September 2021}}, HEVC,{{Citation needed|date=September 2021}} VVC, and AVIF.

Standardization

[https://www.itu.int/rec/T-REC-H.273/en ITU-T H.273], for video.

[https://www.iso.org/standard/69661.html ISO/IEC 23001-8:2016], part of MPEG-B (system technologies). Later split into three parts:
[https://www.iso.org/standard/57794.html ISO/IEC 23091-1:2018], for systems.
[https://www.iso.org/standard/73412.html ISO/IEC 23091-2:2019], for video. (Revised by [https://www.iso.org/standard/81546.html ISO/IEC 23091-2:2021]).
[https://www.iso.org/standard/73413.html ISO/IEC 23091-3:2018], for audio.

Common CICP values

Common combinations of H.273 parameters are summarized in ITU-T Series H Supplement 19.{{Cite web|title=H.Sup19 : Usage of video signal type code points|url=https://www.itu.int/rec/T-REC-H.Sup19/en|url-status=live|access-date=2021-09-12|website=www.itu.int|archive-url=https://web.archive.org/web/20200314113413/https://www.itu.int/rec/T-REC-H.Sup19/en |archive-date=2020-03-14 }}

class="wikitable" \|+Common CICP values ! !Code point value !Meaning
rowspan="3" \|Transfer function \|1, 6, 14, 15 \|SDR (Rec. 709)
16 \|PQ
18 \|HLG
rowspan="5" \|Color primaries \|1 \|Rec. 709, sRGB
5 \|Rec. 601 (PAL)
6 \|Rec. 601 (NTSC)
9 \|Rec. 2020, Rec. 2100
12 \|P3-D65
rowspan="5" \|Matrix coefficients \|0 \|R'G'B'
1 \|Y'CbCr (for Rec. 709)
5, 6 \|Y'CbCr (for Rec. 601)
9 \|Y'CbCr (for Rec. 2020, Rec. 2100)
14 \|ICtCp (for Rec. 2100)

class="wikitable"

|+Common CICP values

!Code point value

!Meaning

rowspan="3" |Transfer function

|1, 6, 14, 15

|SDR (Rec. 709)

|PQ

|HLG

rowspan="5" |Color primaries

|Rec. 709, sRGB

|Rec. 601 (PAL)