• 0 Posts
  • 25 Comments
Joined 1 year ago
cake
Cake day: June 5th, 2023

help-circle
  • It’s possible for a certain hardware/software setup not to support a certain codec. For example, my jellyfin client (Finamp) uses the iOS native decoders (afaik), which means opus files are practically broken. My music library (8000+ songs) contained exactly 1 lossy file, which just so happened to be an opus file. I decided to spend the extra ~20MB to standardise my entire library to flac files, ensuring I could play every song on all my devices.

    Edit cause I posted too soon: you are generally correct; only in very specific circumstances will you encounter compatibility issues like this one in the modern world. This is 100% apple being apple, and you can expect pretty much every other (reasonably modern) device to support all codecs you might encounter in the wild.


  • To add to the audio compression: it isn’t possible to further compress an mp3 file without losing any quality. You can either:

    1. Recompress to a lossy codec (mp3, aac, opus). This will lead to smaller file sizes if you set the bitrate lower than that of the input file, but it will always worsen the quality, no matter the bitrate.
    2. Recompress to a lossless format (flac easily being the best one). Going from a lossy to a lossless format will increase the file size (sometimes by quite a substantial amount), while keeping the same quality. There is very little reason for you to do this
    3. keep the original files (my recommendation)

    If you’re willing to spend some extra time learning about audio compression, you can download lossless files and compress those directly to whatever format and bitrate you want. The quality will be better than option 1 above, as the audio is only lossely compressed once instead of twice.




  • To change the ownership of the files, you should only have to run sudo chown -R user:group directory. -R makes chown run recursively, so it will modify the directory and all subdirectories and files. Do note that changing the ownership to plex:plex or something similar would leave your user unable to normally modify the files. My solution to this was to add both my regular user and the plex (in my case jellyfin) user to the same group. That way both users can easily see and modify the files, as long as the group has read/write permissions (the 2nd column of rwx in ls -Al). If necessary, you can add group permissions with sudo chmod -R g+rw directory.

    On a side note: have you considered using jellyfin? It’s a completely free alternative to plex, which recently received a truly massive update with tons of new features. Some people prefer plex’ overall experience, but I’ve been running jellyfin with almost no complaints.

    Small disclaimer: I’m writing from mobile, so the commands might not be 100% correct. Run at your own risk, and NEVER POINT A CHMOD/CHOWN COMMAND AT SYSTEM DIRECTORIES LIKE / OR /USR. That’s one of the easiest ways to completely break your system.




  • Could it be that the /usr/local/bin directory doesn’t exist? If that’s the case, you’d either have to create it or replace that part of the command with some other directory in your $PATH (make sure to change both occurrences in the command if you decide to go with this latter option). Though I must add that this kind of manual install isn’t great if you want to keep track of installed apps and pending updates, since you’d have to do all of that manually too.






  • Ah, it looks like we have a small misunderstanding. I thought you were talking about uncompressed video, which is enormous. This is only used in HDMI cables for example. A 1080p60 uncompressed video is 2.98Gbit/s, or about 1.22 terabytes per hour.

    A remux is “uncompressed” in the sense that it isn’t recompressed, or in this case transcoded. A remux is still compressed, just to a lesser degree than a transcode. This means the files are indeed larger, but the quality is also better than transcodes.

    To clarify the article’s confusing statement: they claim that remuxes can reduce size by throwing away some audio streams, while keeping the original video. This is true, but the video itself hasn’t gotten any smaller: you are simply throwing away other information.




  • The more you compress the longer and more CPU intensive it is to decompress

    I believe this is becoming less and less true with modern algorithms. Take for example ZSTD: while the compression speeds differs by several orders of magnitude between the fastest and slowest modes, the decompression difference is only about 20%. The same holds true for flac, where the decompression speed is pretty uniform across all compression levels.

    These algorithms probably aren’t used by repacked like fitgirl (so your answer is generally correct in the context of repacks). I do believe it is still interesting to see these new developments in compression techniques.




  • If I understand your post correctly, you have 2 PC’s at home: one running wireguard, and one you want to wake using WoL. This is similar to my setup, where I have a server and a personal desktop. When I want to wake my PC remotely, I just ssh to the server and use the server to wake the desktop. Connecting to the server and telling it to wake your PC seems easier than trying to redirect your phone’s WoL app over wireguard.