FFglitch, FFmpeg fork for glitch art (ffglitch.org)

This page doesn't explain what FFglitch does, or how it's different to ffmpeg. For instance, what's Glitch? I'm guessing it's an architecture, but the post doesn't explain what it is or contextualize the term "architecture."

Not a lot of info on the page about the process, etc, but this is also called "datamoshing." If you're curious, there's a great talk from Demuxed '21 on some of the details: https://www.youtube.com/watch?v=Qtia43DGSrY

Glitch art, not glitch arch. The main page https://ffglitch.org/ is a slightly better introduction to the project.

You know, i was all ready to be dismissive of this, using encoder errors for art sounds silly.

But i watched the video and it really was cool and artistic.

Awesome! I remember seeing Datamosh 2 plugin for After Effects, but didn't know it used this open source project. Turns out there is a whole bunch of GUIs for ffglitch: https://ffglitch.org/frontends/

At university we implemented a DCT+quantization encoder/decoder for audio, and had a buggy version produce these super alien, beautiful sounds. I've often wished I had saved that version.

I love how we try to recreate things that are errors to add realism to something too clean. I've spent many hours in front of tape machines from analog to digital, and each format has its peculiarities when glitching. The analog formats had drop outs and other noise from the analog nature as well as things like head switching. There were also the various methods of drop out compensation like BCSP that would repeat the last good line which could lead to some interesting "smearing". Then there are other things that get imitated like when a monitor would lose sync and you'd see the horizontal/vertical blanking rolling through the screen or lose one of or swap the UV channels. The digital tape formats that had DCT blocks started displaying what this glitch art is inspired by (for lack of better phrasing). So for someone this "inside baseball", it would be a problem when these issues happened so it takes a second to get over the initial "oh no that needs to be fixed" to "that looks cool!"

this is beautiful, the video with the two guys in the urban landscape was especially inspiring, looking forward to experimenting with this someday

cool art! seeing datamoshing like this always impresses me at how much motion is encoded in modern video codecs

Didn't we already have VLC for this?

Nice, watching too much datamosh / glitch art makes my brain tetris effect glitches in my dreams.

There's also the Glitch Lab app on Android and the author has a number of tutorial videos available:

https://youtube.com/playlist?list=PLnfdj-gV14N5JTGybk4kkVpyL...

My favorite datamoshing video is from 2010 before it was cool

Apres le feu de Jacques Perconte

https://www.jacquesperconte.com/oe?28

Kanye West's "Welcome to Heartbreak" Is imo one of the best uses of this effect

Here's some "glitch art" made with an SDR transmitter output power set to exactly the SNR threshold of the receiver.

https://www.w6rz.net/pixellation.mp4

Old school techno and a trippy video, love to see it! In case anyone's interested, it's published as "Emmanuel - Chainreaction", available on youtube as well:

https://www.youtube.com/watch?v=8uEj2c1YQc4

simple in-browser javascript based mp4 glitch datamosher: https://free-online-app.com/glitch-vid-datamosh

Is there any way to use this in conjunction with a mask overlay filter in ffmpeg if I just want to "glitch" part of a video?

I know this is three days old but I've been playing with this since I saw this post. It's blowing my mind. I'm obsessed. I've got some cool results from processing many effects on top of each other (one after another) https://www.youtube.com/watch?v=odiljzvpz_8