feat: show audio/video file lengths

[SkeleyM]

this pr gets and sets the file lengths for video and audio

this doesnt block the main thread and i havent noticed any performance hit (my audio libraries arent huge, 30 at best).

[CyanVoxel]

Could you update this from main? This will be easier to review and benchmark with the thumbnail caching system and newest internal library version (DB_VERSION 5)

[CyanVoxel]

While this does provide duration labels for video and audio files, unfortunately in my testing it indeed appears to lock up the program for several seconds during each operation. Loading pages with video and audio files that would otherwise be instant now takes up to 40 seconds to become responsive.

[SkeleyM]

i think the slowdowns are due to my approach. of course reading every single file for each page is extremely slow.

maybe only doing that process once could be beneficial i.e. caching the timestamps in an external file (of course then changes wont be reflected) or having a background thread update the timestamps as it goes to avoid unresponsiveness. or maybe some combination of the two.
i'm going to change this to a draft since this wont be done overnight

[Nginearing]

i think the slowdowns are due to my approach. of course reading every single file for each page is extremely slow.

maybe only doing that process once could be beneficial i.e. caching the timestamps in an external file (of course then changes wont be reflected) or having a background thread update the timestamps as it goes to avoid unresponsiveness. or maybe some combination of the two. i'm going to change this to a draft since this wont be done overnight

Perhaps, you could only show the length on hover, or if it is being used to find a video or audio file of a certain length, maybe it is better suited to be in the form of a search query. This has also been suggested to be part of a file sorting feature #207

[SkeleyM]

showing length on hover could work as a temporary way of having the lengths be previewed, so long as it doesnt increase time to interact. might try it and see if it could be suitable