if (f->priv_class)
show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
AV_OPT_FLAG_AUDIO_PARAM);
+ if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
+ printf("This filter has support for timeline through the 'enable' option.\n");
#else
av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
"can not to satisfy request\n");