Coding-independent code points

Coding-independent code points (CICP) is a way to signal the properties of a video or audio stream.^[1][2] It can describe the color profile of videos (and still images) in a simpler way than the use of ICC profiles.^[3] It is defined in both ITU-T H.273 and ISO/IEC 23091-2.^[1] It is used by multiple codecs including AVC^{[citation needed]}, HEVC,^{[citation needed]} VVC, and AVIF.^[3]

Standardization

• ITU-T H.273, for video.

• ISO/IEC 23001-8:2016, part of MPEG-B (system technologies). Later split into three parts:
  • ISO/IEC 23091-1:2018, for systems.
  • ISO/IEC 23091-2:2019, for video. (Revised by ISO/IEC 23091-2:2021).
  • 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.^[4]

Common CICP values^[1][4]

	Code point value	Meaning
Transfer function	1, 6, 14, 15	SDR (Rec. 709)
	16	PQ
	18	HLG
Color primaries	1	Rec. 709, sRGB
	5	Rec. 601 (PAL)
	6	Rec. 601 (NTSC)
	9	Rec. 2020, Rec. 2100
	12	P3-D65
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)