smplayer has an option that allows deleting the currently playing video. This worked well in windows 7, and even in debian 9 till about an year back. It brings up a confirmation dialog box, and if I click 'yes' it deletes the file and starts playing the next file in the playlist.
I tried it recently (now debian 10 buster, both kde & gnome. Both mplayer and mpv engine.) and it does not delete the file (When I click 'Delete File from Disk', nothing happens. Closing the app, also does not delete the file.). Tried files placed on both 'home' (ext4) and ntfs, same result.
Could you tell me why/how it can be solved?
If you have smplayer installed, could you please test it?
To get the delete button onto the toolbar (its not available by right clicking on the video, even last year when it was working well it was like that), you will need to:
Right click on the toolbar. Select "Edit Main Toolbar". Then find and select 'Delete File from Disk' from the 'Available Actions'. Now it will appear on the toolbar and can be used when a video is playing.
I opened smplayer from the terminal, then opened a file using Ctrl+F and then tried to delete the file, hoping so get some error messages, but there was nothing!
QObject::connect: No such signal MyApplication::commitDataRequest(QSessionManager)
This is SMPlayer v. 17.11.2 (revision 8807) running on Linux