FF_API_AVFILTER_INIT_FILTER  839 libavfilter/avfilter.c #if FF_API_AVFILTER_INIT_FILTER
FF_API_AVFILTER_INIT_FILTER 1040 libavfilter/avfilter.h #if FF_API_AVFILTER_INIT_FILTER
FF_API_AVFILTER_INIT_FILTER   67 libavfilter/version.h #ifndef FF_API_AVFILTER_INIT_FILTER