av_get_number     297 libavcodec/opt.c     av_get_number(obj, name, o_out, &num, &den, &intnum);
av_get_number     306 libavcodec/opt.c     av_get_number(obj, name, o_out, &num, &den, &intnum);
av_get_number     318 libavcodec/opt.c     av_get_number(obj, name, o_out, &num, &den, &intnum);