"Swap Filenames" only works if the file extensions don't match.

[DeeGeeFi]

If I have two matching .webm files and want to switch the names around (in the same folder), the "Swap filenames" button doesn't seem to do anything. If I have .mp4 and a .webm then the "Swap filenames" seems to work.

Is the swap filenames function trying to do the name change without first naming the other file to some temporary name? That obviously would cause a problem with having two identically named files in the same folder.

[DeeGeeFi]

Additionally it fails silently and only changes in the program UI, so you will delete the incorrect file after "switchin" the names.

[speedheathenULTRA]

I seriously hope this is NOT THE CASE. If so I've deleted thousands of irreplaceable videos. @DeeGeeFi can you comment? @kristiankoskimaki how about you?

[DeeGeeFi]

I can't actually confirm it. I think it only happens on a folder that has thousands of files, and even then bit randomly (and it's a old HDD). On a folder that has under 50 files it seems to work correctly. (at least with the small testing I did)

I wonder if it's possible that because the folder has such many files, that the renaming doesn't happen fast enough or in correct order? I'm not sure how Windows 10 file system handles it.

[speedheathenULTRA]

@DeeGeeFi I just got finished testing this with 5 different sets of files varying in container extension ie. mov, mp4, m4v, etc.

In all tests I was successfully able to rename the files and also rename them back as well as delete the proper file.

[Geekbot2]

This must happen because when changing the names being in the same folder, the system detects that there is already a file with that name, what must be done in this case is to change the name of a file temporarily to a file name that does not exist in that folder and then do the name exchange.

Example :
"file 1"
"file 2"

I want to swap the "file 1" and "file 2"
If I try to change the name of "file 1" to the name "file 2" I will not be able to because there is already another file with the name "file 2".

[DeeGeeFi]

I actually took a look at the code (with my very very limited skills) and it tries to do just that. It tries to rename the other file to "VidupeRenamedVideo.avi" and then do the name swap. But I guess it sometimes fails, because I have one of those files still in the folder I used Vidupe on.