avfilter_graph_request_oldest 4514 fftools/ffmpeg.c     ret = avfilter_graph_request_oldest(graph->graph);
avfilter_graph_request_oldest 1162 libavfilter/avfilter.h int avfilter_graph_request_oldest(AVFilterGraph *graph);
avfilter_graph_request_oldest  209 tools/uncoded_frame.c         ret = avfilter_graph_request_oldest(in_graph);