allow cameraserver property_socket:sock_file write;
allow cameraserver init:unix_stream_socket connectto;
binder_call(cameraserver, mediacodec);
get_prop(cameraserver, vendor_camera_prop)
get_prop(cameraserver, vendor_video_prop)
set_prop(cameraserver, system_prop)
binder_call(cameraserver, mediacodec)