ETcVnJpegSampling

Offers sampling factors for jpeg encoding, to trade off chroma resolution against file size.

Syntax

Definition:

enum ETcVnJpegSampling : LONG
{
    JS_444 = 11,
    JS_440 = 12,
    JS_422 = 21,
    JS_420 = 22,
    JS_411 = 41,
    JS_410 = 42
};

Values

Name

Description

JS_444

Sampling factors 1x1, 1x1, 1x1 (full chroma resolution)

JS_440

Sampling factors 1x2, 1x1, 1x1

JS_422

Sampling factors 2x1, 1x1, 1x1

JS_420

Sampling factors 2x2, 1x1, 1x1 (default)

JS_411

Sampling factors 4x1, 1x1, 1x1

JS_410

Sampling factors 4x2, 1x1, 1x1 (lowest chroma resolution)