How to check the 3‐nt periodicity behavior in reads covered reigon

[PSSUN]

Dear zheji,
I have filtered the ribosome profiling reads and got a bam file,BUT,I didn't use a pattern creature, so I don't have its gtf format file.In this case, can I use this software to make predictions?If so, what special information does the software need in the gtf file?
Can I use offset.correction.parameters from other Similar species base on riboseq data to adjust sam file of my current species, then, use candidate ORFs and corrected sam to make prediction?
Have a nice day.