Поделиться через

eAVEncVideoChromaResolution Enumeration

  • Статья
 
Microsoft DirectShow 9.0

eAVEncVideoChromaResolution Enumeration

Specifies chroma resolution. This enumeration is used with the AVEncVideoInputChromaResolution and AVEncVideoOutputChromaResolution properties.

Syntax

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

Members

eAVEncVideoChromaResolution_SameAsSource

Use the same chroma resolution as the input video. This flag applies to the AVEncVideoOutputChromaResolution property only.

eAVEncVideoChromaResolution_444

4:4:4 (no downsampling).

eAVEncVideoChromaResolution_422

4:2:2 (2:1 horizontal downsampling, with no vertical downsampling).

eAVEncVideoChromaResolution_420

4:2:0 (2:1 horizontal downsampling, with 2:1 vertical downsampling).

eAVEncVideoChromaResolution_411

4:1:1 (4:1 horizontal downsampling, with no vertical downsampling).

Requirements

Header: Include codecapi.h.

See Also