Editor_options_sethue, Editor_options_setsaturation – Google Flix Engine Linux Reference Manual User Manual

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5.22 Brightness/Contrast/Hue/Saturation

5.22.3.10

on2sc editor_options_SetContrast (FLIX2HANDLE flix, const double contrast)

Set the contrast adjustment factor.

Determines the level by which to adjust the contrast. Contrast is adjusted on a scale of -255 to 255, with 0
indicating no change. To increase the relative contrast of the video, use a positive number. To decrease the
relative contrast of the video, use a negative number.

Parameters:

← flix Handle to the Flix Engine returned from

Flix2_Create()

Flix2_CreateEx()

← contrast Contrast Factor (-255 to 255)

Return values:

ON2_OK

The contrast value was successfully set in the engine.

ON2_INVALID_PARAMS

The value is out of range.

ON2_NET_ERROR

The underlying communication layer failed.

Note:

This call will have no effect on the encoded video unless the contrast filter is enabled with

editor_-

options_SetUseContrast()

. The default value is 1.

Use the

along with

and the

parameter.

This function will be removed in a future release.

5.22.3.11

on2sc editor_options_SetHue (FLIX2HANDLE flix, const int32_t hue)

Set the hue adjustment factor.

Determines the level by which to adjust the hue. Hue is adjusted on a scale of -180 to 180, with 0 indicating
no change. To adjust the hue of the video towards red, use a negative number. To adjust the hue of the
video towards green, use a positive number.