configure_output_filter  529 ffmpeg.h       int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);
configure_output_filter  926 ffmpeg_filter.c             configure_output_filter(fg, fg->outputs[i], cur);
configure_output_filter 1739 ffmpeg_opt.c       if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {