Windows 10: how to make a list of media files and their durations

I have many media files (audio mp3 - mp4) I want to create a list that have file names and their durations and the total.





https://preview.redd.it/cs40f617sbs...bp&s=926530a5d7e8dab2fe4e9eb1d0b2bd10f8cf5a3a

submitted by /u/zoexzin
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:)

 

c# subtract elements of a list

This.
Create EventInfo class with DateTime EventStart, DateTime EventEnd, and a TimeSpan property Duration (with only getter) that gets EventEnd-EventStart.
Then you keep the list of EventInfo instances.

 

Recent File List

Remove-ItemProperty -Path "Registry::HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion
\Applets\Paint\Recent File List" -name file1

Remove-ItemProperty -Path "Registry::HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion
\Applets\Paint\Recent File List" -name file2
Remove-ItemProperty -Path "Registry::HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion
\Applets\Paint\Recent File List" -name file3
Remove-ItemProperty -Path "Registry::HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion
\Applets\Paint\Recent File List" -name file4
Remove-ItemProperty -Path "Registry::HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion
\Applets\Paint\Recent File List" -name file5
Remove-ItemProperty -Path "Registry::HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion
\Applets\Paint\Recent File List" -name file6
Remove-ItemProperty -Path "Registry::HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion
\Applets\Paint\Recent File List" -name file7
Remove-ItemProperty -Path "Registry::HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion
\Applets\Paint\Recent File List" -name file8
Remove-ItemProperty -Path "Registry::HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion
\Applets\Paint\Recent File List" -name file9
...

you get the idea. ( too lazy to put it in a for loop and test it.

or just open regedit and remove all the fileX from that key.

 

c# subtract elements of a list

I would put the start and finish times in a custom class then add an instance of the class to a List<class>. That way you only have one list and that one list contains everything relevant. If you want to go a step further, I would add an accessor called Duration that returns Finish - Start. Put it all together, you could do something like list[9].Duration to get how long task 9 took. Ideally, this custom class would contain everything relevant to the job (even the job itself) so this all happens in isolated code.

To remove elements from a list, use .Remove(index) or .Remove(copy of instance). If it is in a for loop, make sure to run the loop in reverse (i-1) otherwise it will freak out.

If this isn't homework and the code is something that can be made public, I could take a look and/or optimize it for you so you can see a working example of what I'm talking about.