eAVEncVideoColorTransferFunction enumeration (codecapi.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
Specifies the conversion function from R'G'B' to RGB. This enumeration is used with the AVEncVideoInputColorTransferFunction and AVEncVideoOutputColorTransferFunction properties.
Syntax
typedef 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 Value: 0 Use the same function as the input video. This flag applies to the AVEncVideoOutputColorTransferFunction property only. |
eAVEncVideoColorTransferFunction_10 Value: 1 Linear RGB (gamma = 1.0). |
eAVEncVideoColorTransferFunction_18 Value: 2 True 1.8 gamma. L' = L^1/1.8. |
eAVEncVideoColorTransferFunction_20 Value: 3 True 2.0 gamma. L' = L^1/2.0.. |
eAVEncVideoColorTransferFunction_22 Value: 4 True 2.2 gamma. L' = L^1/2.2.. |
eAVEncVideoColorTransferFunction_22_709 Value: 5 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 Value: 6 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 Value: 7 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 Value: 8 True 2.8 gamma. L' = L^1/2.8.. |
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows 2000 Professional [desktop apps | UWP apps] |
Minimum supported server | Windows 2000 Server [desktop apps | UWP apps] |
Header | codecapi.h |