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eAVEncCommonRateControlMode enumeration (codecapi.h)

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Specifies the rate control mode for an encoder. This enumeration is used with the AVEncCommonRateControlMode codec property.

Syntax

typedef enum eAVEncCommonRateControlMode {
  eAVEncCommonRateControlMode_CBR = 0,
  eAVEncCommonRateControlMode_PeakConstrainedVBR = 1,
  eAVEncCommonRateControlMode_UnconstrainedVBR = 2,
  eAVEncCommonRateControlMode_Quality = 3,
  eAVEncCommonRateControlMode_LowDelayVBR = 4,
  eAVEncCommonRateControlMode_GlobalVBR = 5,
  eAVEncCommonRateControlMode_GlobalLowDelayVBR = 6
} ;

Constants

 
eAVEncCommonRateControlMode_CBR
Value: 0
Constant bit rate (CBR) encoding.
eAVEncCommonRateControlMode_PeakConstrainedVBR
Value: 1
Constrained variable bit rate (VBR) encoding.
eAVEncCommonRateControlMode_UnconstrainedVBR
Value: 2
Unconstrained VBR encoding.
eAVEncCommonRateControlMode_Quality
Value: 3
Quality-based VBR encoding. The encoder selects the bit rate to match a specified quality level. To specify the quality level, set the AVEncCommonQuality property.
eAVEncCommonRateControlMode_LowDelayVBR
Value: 4
Low delay VBR encoding. H.264 extension.

Requires Windows 8.
eAVEncCommonRateControlMode_GlobalVBR
Value: 5
Global VBR encoding. H.264 extension.

Requires Windows 8.
eAVEncCommonRateControlMode_GlobalLowDelayVBR
Value: 6
Global low delay VBR encoding. H.264 extension.

Requires Windows 8.

Remarks

This enumeration is also used with H.264 UVC 1.5 camera encoders.

Requirements

   
Minimum supported client Windows 2000 Professional [desktop apps | UWP apps]
Minimum supported server Windows 2000 Server [desktop apps | UWP apps]
Header codecapi.h

See also

Codec API Enumerations

ICodecAPI Interface