commit cdeb803e2fe1239e0217186c7441c94adb0d9895
Author: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Date:   Sun Jun 26 18:49:00 2011 +0200

    vf_lut: fix draw_slice() in case of non packed image data for packed RGB
    
    The previous code was erroneously assuming that the linesize was
    equivalent to width*pixel_step, which is not always true.

commit 9df1d329a5ac718dd9459ed37acdbbc88adc31e3
