[MPlayer-users] what if vd_xxx.c::decode() returns NULL to upper layer?

[boku]

Dear all,
    I'm wondering what will happen or what mplayer regards it as in
which situation if the vd_xxx.c's decode() returns NULL.
Will Mplayer keep demuxing and feeding bs to vd_xxx for decode
or regards it as error or other abnormal operation?

Thanks a lot!