transfer_plane_from_image_as  873 libheif/heif_context.cc       img->transfer_plane_from_image_as(alpha, heif_channel_Y, heif_channel_Alpha);
transfer_plane_from_image_as   76 libheif/heif_image.h   void transfer_plane_from_image_as(std::shared_ptr<HeifPixelImage> source,