API Reference
4-20
Group or Enumeration
Class
Symbolic Constant Name
Description or Evaluation
IH264HP_TC_ITU_R_BT1361
ITU-R Rec. BT.1361 extended colour
gamut system
IH264HPVENC_MatrixC
oefficients
Describes the matrix coefficients used in deriving luma and chroma signals
from the green, blue, and red primaries.
IH264HP_MC_GBR
Typically referred to as RGB; Refer
Equations E-16 to E-18
IH264HP_MC_ITU_R_BT709_5
ITU-R Rec. BT.709-5
ITU-R Rec. BT.1361 conventional
colour gamut system and extended
colour gamut system
IEC 61966-2-4 xvYCC709
Society of Motion Picture and
Television Engineers RP 177 (1993)
Annex B
IH264HP_MC_UNSPECIFIED
Image characteristics are unknown or
are determined by the application.
IH264HP_MC_USFCC
United States Federal
Communications Commission Title 47
Code of Federal Regulations (2003)
73.682 (a) (20)
IH264HP_MC_ITU_R_BT470_6_
SYSTEM_B_G
ITU-R Rec. BT.470-6 System B, G
(historical)
ITU-R Rec. BT.601-6 625
ITU-R Rec. BT.1358 625
ITU-R Rec. BT.1700 625 PAL and 625
SECAM
IEC 61966-2-4 xvYCC601
(functionally the same as the value 6)
IH264HP_MC_SMPTE_170M
ITU-R Rec. BT.601-6 525
ITU-R Rec. BT.1358 525
ITU-R Rec. BT.1700 NTSC
Society of Motion Picture and
Television Engineers 170M (2004)
(functionally the same as the value 5)
IH264HP_MC_SMPTE_240M
Society of Motion Picture and
Television Engineers 240M (1999)
IH264HP_MC_YCGCO
Refer Equations E-19 to E-33 in the
standard
