eAVEncVideoColorTransferFunction enumeration

Specifies the conversion function from R'G'B' to RGB. This enumeration is used with the AVEncVideoInputColorTransferFunction and AVEncVideoOutputColorTransferFunction properties.

Syntax

enum eAVEncVideoColorTransferFunction {
  eAVEncVideoColorTransferFunction_SameAsSource  = 0, 
  eAVEncVideoColorTransferFunction_10            = 1, 
  eAVEncVideoColorTransferFunction_18            = 2, 
  eAVEncVideoColorTransferFunction_20            = 3, 
  eAVEncVideoColorTransferFunction_22            = 4, 
  eAVEncVideoColorTransferFunction_22_709        = 5, 
  eAVEncVideoColorTransferFunction_22_240M       = 6, 
  eAVEncVideoColorTransferFunction_22_8bit_sRGB  = 7, 
  eAVEncVideoColorTransferFunction_28            = 8 

};

Constants

eAVEncVideoColorTransferFunction_SameAsSource

Use the same function as the input video. This flag applies to the AVEncVideoOutputColorTransferFunction property only.

eAVEncVideoColorTransferFunction_10

Linear RGB (gamma = 1.0).

eAVEncVideoColorTransferFunction_18

True 1.8 gamma. L' = L^1/1.8.

eAVEncVideoColorTransferFunction_20

True 2.0 gamma. L' = L^1/2.0..

eAVEncVideoColorTransferFunction_22

True 2.2 gamma. L' = L^1/2.2..

eAVEncVideoColorTransferFunction_22_709

Gamma 2.2 curve with a linear segment in the lower range. L' = 4.5L, for L < 0.018; L' = 1.099L^0.45.- 0.099, for L >= 0.018. This transfer function is used in BT-709, SMPTE 296M, SMPTE 170M, BT-470, and SPMTE 274M.

eAVEncVideoColorTransferFunction_22_240M

Gamma 2.2 curve with a linear segment in the lower range. L' = 4.0L, for L < 0.0228; L' = 1.1115^L0.45.- 0.01115, for L >= 0.0228. This transfer function is used in SPMTE 240M.

eAVEncVideoColorTransferFunction_22_8bit_sRGB

Gamma 2.4 curve with a linear segment in the lower range. L' = L/12.92, for L < 0.03928; L' = ((L + 0.055) / 1.055)^2.4., for L >= 0.03928.

eAVEncVideoColorTransferFunction_28

True 2.8 gamma. L' = L^1/2.8..

Requirements

See also

Codec API Enumerations

ICodecAPI Interface