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eAVEncVideoChromaResolution enumeration (codecapi.h)

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 chroma resolution. This enumeration is used with the AVEncVideoInputChromaResolution and AVEncVideoOutputChromaResolution properties.

Syntax

typedef enum eAVEncVideoChromaResolution {
  eAVEncVideoChromaResolution_SameAsSource = 0,
  eAVEncVideoChromaResolution_444 = 1,
  eAVEncVideoChromaResolution_422 = 2,
  eAVEncVideoChromaResolution_420 = 3,
  eAVEncVideoChromaResolution_411 = 4
} ;

Constants

 
eAVEncVideoChromaResolution_SameAsSource
Value: 0
Use the same chroma resolution as the input video. This flag applies to the AVEncVideoOutputChromaResolution property only.
eAVEncVideoChromaResolution_444
Value: 1
4:4:4 (no downsampling).
eAVEncVideoChromaResolution_422
Value: 2
4:2:2 (2:1 horizontal downsampling, with no vertical downsampling).
eAVEncVideoChromaResolution_420
Value: 3
4:2:0 (2:1 horizontal downsampling, with 2:1 vertical downsampling).
eAVEncVideoChromaResolution_411
Value: 4
4:1:1 (4:1 horizontal downsampling, with no vertical downsampling).

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

See also

Codec API Enumerations

ICodecAPI Interface