Google Flix Engine Linux Reference Manual - Manual (Page 136)

130 Flix Engine Linux Module Documentation
Return values:
ON2_OK the component values were set successfully
ON2_INVALID_PARAMS the precondition failed
ON2_NET_ERROR the underlying communication layer failed
Precondition:
flix is not NULL
Remarks:
The color specified will become transparent when the overlay image is drawn on the video image.
Once this function has been called successfully,
overlay_options_Reset() must be called to turn trans-
parency off.
Calling this method will disable masking based on XY coordinate.
Using a PNG or bitmap with full alpha channel will produce better results than using a transparency
color.
If using this method to add an overlay to video with an existing alpha channel, the transparent portions
of the overlay will be transparent in the output video. Opaque portions of the overlay will be averaged
with the existing alpha data.
Deprecated
Use the Filter Interface along with FE2_FILTER_OVERLAY and the FE2_OVERLAY_MASK_R ,
FE2_OVERLAY_MASK_G and FE2_OVERLAY_MASK_B parameters. This function will be re-
moved in a future release.
5.31.4.8 on2sc overlay_options_SetMaskPixelXY (FLIX2HANDLE flix, int32_t maskPixelX,
int32_t maskPixelY)
Set the X and Y coordinates of the mask pixel.
Parameters:
← flix Handle to the flix engine returned from Flix2_Create() or Flix2_CreateEx()
← maskPixelX the X coordinate value
← maskPixelY the Y coordinate value
Return values:
ON2_OK the coordinate values were set successfully
ON2_INVALID_PARAMS the precondition failed
ON2_NET_ERROR the underlying communication layer failed
Precondition:
flix is not NULL
Remarks:
The color at the specified coordinate will become transparent when the overlay image is drawn on the
video image.
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