FILT_ORDER        120 libavcodec/psymodel.c                                                  FF_FILTER_MODE_LOWPASS, FILT_ORDER,
FILT_ORDER        130 libavcodec/psymodel.c                 ctx->fstate[i] = ff_iir_filter_init_state(FILT_ORDER);
FILT_ORDER         39 libavcodec/tests/iirfilter.c                                         FF_FILTER_MODE_LOWPASS, FILT_ORDER,
FILT_ORDER         41 libavcodec/tests/iirfilter.c     fstate  = ff_iir_filter_init_state(FILT_ORDER);