const image.YCbCrSubsampleRatio420

4 uses

	image (current package)
		ycbcr.go#L17: 	YCbCrSubsampleRatio420
		ycbcr.go#L29: 	case YCbCrSubsampleRatio420:
		ycbcr.go#L105: 	case YCbCrSubsampleRatio420:
		ycbcr.go#L153: 	case YCbCrSubsampleRatio420: