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hmmm@sh.itjust.works to Animemes@ani.socialEnglish · 3 months ago

.tar.xz

i.imgur.com

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.tar.xz

i.imgur.com

hmmm@sh.itjust.works to Animemes@ani.socialEnglish · 3 months ago
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  • Farid@startrek.website
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    3 months ago

    No way media compressed 5x.

    • Anafabula@discuss.tchncs.de
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      3 months ago

      Maybe they store images as uncompressed .bmp for some reason

      • Lichtblitz@discuss.tchncs.de
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        3 months ago

        bmp should not compress more than other media files. jpeg, png, etc. can compress so much because they are lossy

        • Kwdg@discuss.tchncs.de
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          3 months ago

          Png is lossless

          • Lichtblitz@discuss.tchncs.de
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            3 months ago

            You’re right. png can be lossy but that’s uncommon in the wild.

        • Anafabula@discuss.tchncs.de
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          3 months ago

          Three files of the same image: A png (15.7MiB), a bmp (28.8MiB) and a bmp.zip (16.4MiB)

          PNG actually uses the same compression algorithm as ZIP (DEFLATE).
          Here are the files.

          • Lichtblitz@discuss.tchncs.de
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            3 months ago

            The image doesn’t look like a photo. The meme is about porn. Digital images can contain large areas of repeating patterns (uniform color areas for example) that can be compressed losslessly pretty well. Even slight noise from an image sensor can block that kind of compression.

            • Anafabula@discuss.tchncs.de
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              3 months ago

              With a picture from Unsplash:
              Three files of the same image: A png (34.5MiB), a png.zip (34.5MiB), a jpg (4.9MiB), a bmp (98.2MiB) and a bmp.zip (65.1MiB)

              ZIP compression of bmp is worse, but still compresses more than png. Here are the files.

              • Lichtblitz@discuss.tchncs.de
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                3 months ago

                Fascinating. That’s much more than I expected. Thanks for taking the time.

    • reev@sh.itjust.works
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      3 months ago

      Was thinking the same thing

    • hmmm@sh.itjust.worksOP
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      3 months ago

      Why are you surpried? It’s actually possible. You just need so much computing power like around 64 GB ram and High End CPU to Pack and Unpack both.

      • Farid@startrek.website
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        3 months ago

        Because modern media files are already compressed by default and have very little redundancy in them.

  • TheTechnician27@lemmy.world
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    3 months ago

    Ew, WinRAR.

    • Pregnenolone@lemmy.world
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      3 months ago

      WinRAR got me through some hard times. She might be filthy, but she did the job

      • TheTechnician27@lemmy.world
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        3 months ago

        She’s proprietary nagware, and 7-Zip is better in every way.

        • bruhduh@lemmy.world
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          3 months ago

          Say truthfully, when you was 7 y.o kid, did you used fully open sourced OS then? I think everyone used winrar when they were kids/teenagers (before learning about foss)

        • admin@sh.itjust.works
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          3 months ago

          I didn’t discover 7-zip until 5th grade, so WinRAR always takes a spot in my heart <3.

    • GrammarPolice@lemmy.world
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      3 months ago

      I use Windows in-built extract

  • bruhduh@lemmy.world
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    3 months ago

    • hmmm@sh.itjust.worksOP
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      3 months ago

      Seriously I don’t know maybe you reverse search this.

    • MrLLM@ani.social
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      3 months ago

      OP’s computer

  • superkret@feddit.org
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    3 months ago

    Is this lossless?

  • алсааас [she/they]@lemmy.dbzer0.com
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    3 months ago

    What if it’s on a BTRFS --compress-force=zstd:22 compressed subvolume?

  • gandalf_der_12te@discuss.tchncs.de
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    3 months ago

    you can’t compress most media files again, they don’t get smaller that way as they’re already compressed. you can’t compress files again, that’s against Shannon Information theory.

  • lars@lemmy.sdf.org
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    3 months ago

    Do Windows people often see .xzs? Does anyone?

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