int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx) { int ret; if ((ret = graph_check_validity(graphctx, log_ctx))) if ((ret = graph_insert_fifos(graphctx, log_ctx)) < 0) if ((ret = graph_config_formats(graphctx, log_ctx))) if ((ret = graph_config_links(graphctx, log_ctx))) if ((ret = graph_config_pointers(graphctx, log_ctx))) return 0; }