SPRUJB3 March 2024 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
The video pipeline supports luma key transparency for Blue-ray video layer composition. When enabled, Y value of each pixel will be checked against luma key range values. The range values are defined in DSS0_VID_LUMAKEY register fields, as follows: [11-0] LUMAKEYMIN < Y < [27-16] LUMAKEYMAX. If this condition is true, then the pixel alpha value will be forced to zero (transparent) to make the pixel transparent during the blending process in the overlay manager.