What are your least favorite file formats?

What are your least favorite file formats?

.RMVB is shit-tier.

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youtube.com/watch?v=kCpjg50-nvc
anyforums.com/
twitter.com/AnonBabble

Ones that are no longer in existence.

webp

>.rar
Cancerous shit. LZMA based formats (7z, xz) are much better. LZOP for speed.

I thought about re-archiving all my .RARs as .7z but got lazy.

>.ace
Seriously...

.rmvb is pretty good to embed every shit you want in a stream.

>2017
>.avi

PNG - to get decent compression out of a 10 Mpix file you need to spend an hour using a batch of PNG compressors..
Because of "nifty flexible variations just-in-case designs instead of a good mathematically sane design.

(Small example included took 4 minutes to compress, and no quantizers applied. Resave it with Pbrush PNG to make it bigger.)

.3ds
The cancer that comes from 3b2.

Motherfucking docx.
This one guy literally sent me a screenshot of his desktop in docx.
HE PASTED SCREENSHOT TO A GODDAMN WORD PROCESSORD

>good mathematically sane design.

Open a .docx in 7zip.
Enjoy.

MP3 and JPEG
Lossy compression needs to die.

.7z

Not worth it unless the content is really compressible to start with and may benefit from LZMA.

Why, because it never took off?

>>.avi
I guess you are mostly talking about Xvid in .AVI which is certainly dated. But AVI is also still heavily used for containing lossless codecs like Huffyuv and Lagarith along with dozens of other stuff like that.

That's why you hate the format?

This and mp3
What did you use to compress that?

>Lossy compression needs to die.
Do you watch digital TV broadcasts of any kind?
Do you watch Youtube, Netflix, and the like?
Do you create your own videos with cellphones, consumer camcorders, or consumer cameras (DSLR/point and shot)?
Do you like saving 1080p videos that don't require 100GB per hour?

If you said yes to any of these, then you benefit from lossy video compression.

I'm not the guy but I use PNGGauntlet. Using the high settings like that guy complains about is stupid and usually is no better than the mid to low settings.

I didn't say anything about video, but I hope that's on the way out, too.
It's technically feasible right now to fully do lossless pictures and music.

how about both? at the same time?
ffmpeg -i out.jpg -f rawvideo -pix_fmt monob - | mpv -

>I didn't say anything about video
Lossy compression certainly includes video compression.

>It's technically feasible right now
Often times the video itself is not even captured losslessly, with codecs like Prores and Cineform used instead to deal with the crazy filesizes. Or else you capture in RAW, which is huge and a pain in the butt cause it's all software based Demosaicing (decoding).

But JPEG is great

Nice one desu.
Keeping it as a fun steganography example.

What version of ffmpeg are you using ?

if you're having trouble fitting a square into a circular hole, you're just not using enough force
i="out.jpg"; ffmpeg -r 10 -pix_fmt monob -f rawvideo -s 160x120 -i

What if I don't have mpv but vlc?

try with "vlc" in place of "mpv"
otherwise replace "| mpv -" with "> out.mka" and open that

.aspx

latest, but that should work on a lot of versions

If you have ffmpeg, you probably have ffplay as well. Same syntax "ffplay -"

Using zeranoe builds the monob in swscale isn't finished.

if you're talking about [swscaler @ 0x5615df8ce620] full chroma interpolation for destination format 'monob' not yet implemented, i get that as well, it doesn't matter, this image has no chroma information

Fuck webp, luckily the imgur transloader automatically converts it to png, so it's only a minor hassle.

Can 7z preserve creation date?

swf
rm
flv
later versions of wmv (early asf was ok)
doc (docx and odt are much better)
pdf (postcript)

zipx
tar
bzip
gz
z
(we have enough with zip, rar, and 7z)

But why?

PDF are a fucking nightmare

Probably a butthurt Mactodler.

The only reason I can think of to dislike it is that whatever websites/programs you use don't support it yet. It's a pretty good format for images.

I've seen a similar command but using imagemagick instead of ffmpeg.

youtube-dl --extract-audio --prefer-ffmpeg --audio-format vorbis youtube.com/watch?v=kCpjg50-nvc

convert -size 1337x1337 gray:GNU_Punk\ -\ Share\ the\ Software\ \(Free\ Software\ Song\ Remix\)-kCpjg50-nvc.ogg -append -trim hack.png

convert hack.png gray:- | mpv -

i used imagemagick to make it, i just find more people have ffmpeg than imagemagick

I think I only have one of those files.

.zip (WinZip)
FUCK that shit.

Oh, oh, .gifv (Imgur)
Fucking redditards.
Most pointless file type of the decade award goes to that.

I know your pain all too well, user. I use the same 5 algos each time in a program I wrote, and it takes at least 15-20 mins on the fastest setting. What kind of methodologies do other anons use for compression? What's the most common way?