How to recover only avi or mp4 files in photorec?

Question

ubuntu

In photorec -> file options, you can select the type of files, including mp3, but among them I did not find avi, mp4.
How to select only this type of files. Accidentally deleted avi and mp3 format.
Moreover, can I select only a certain section of the disk, where I know for sure that the files were there, or will the program stupidly always search for the entire 500 GB disk?

Answer 1

1) MP4 is in "mov"
2) AVI is in "riff"
3) The entire selected disk partition will be scanned
The answer was written for photorec version 7, which is in the Ubuntu 16.04 repository