FF_KBD_WINDOW_MAX   30 libavcodec/kbdwin.c    double local_window[FF_KBD_WINDOW_MAX];
FF_KBD_WINDOW_MAX   33 libavcodec/kbdwin.c    av_assert0(n <= FF_KBD_WINDOW_MAX);
FF_KBD_WINDOW_MAX   52 libavcodec/kbdwin.c     float local_window[FF_KBD_WINDOW_MAX];