KOH_Linux_environment_vars

Environment Variables

VideoKey

This feature disables the automatic VideoKey painting of VAAPI and Xv API when FbBlendOvl mode is enabled by setting the EMGD_VIDEO_SKIP_COLORKEY_FILL environment variable to 1. The goal is that the application draws the rgb+alpha background (with subpicture) to the framebuffer with the video surface being displayed on the overlay plane. If EMGD_VIDEO_SKIP_COLORKEY_FILL is not set to 1, VAAPI and Xv API override this painting, making it impossible to paint a subpicture in the background.

• To enable this feature, execute
'export EMGD_VIDEO_SKIP_COLORKEY_FILL=1'

• To disable this feature, execute
'export EMGD_VIDEO_SKIP_COLORKEY_FILL=0'



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Revised April 2013