An I-Frame can be identified by the HEX string 00 01 B0 01 that will appear about 5 bytes after the 00dc frame start marker.Ĥ.

About 1 in 25 of these will be an I-Frame (though this depends on things like what quality you saved it at, etc). This is the raw video data.Įach video frame in the AVI file will start with the code 00dc, you can search for these in the file (there will be a lot!). ( is good, and free) You'll see a lot of numbers and symbols. Download a HEX editor and open the AVI file with it. Get your video in MPEG4 format, XViD or DIVX is fine.ģ. Here is how you can do it the hardcore way:ġ. The effect you see in the datamosh videos is what happens when you store only the differences between frames, ie. They store only the differences between the current frame and the last frame. P and B frames are the smart frames that allow videos to be compressed. An I frame is like a JPEG image, it holds the still image (that frame) in its entirety. When a video is encoded, each frame is stored as an I frame or a P/B frame. Some of these types of automation could be accomplished through the usage of a programming framework, or scripting language, but automating at the user interface level can remove a lot of overhead and restrictions.Vectorpunk Īlthough I just learned that Datamoshing is over, I want to quickly describe how you can make it happen, to late. Similarly one could experiment with automating photo editing processes by scripting with a program like AutoHotkey.

These types of scripts could also be used to automate key strokes while hex editing images, consider a script which would move a certain number of characters across and then insert a character - that could glitch out an image quite nicely. The script will send the appropriate key strokes to remove the next 10 I-frames while you pop out for a break.

Load AutoHotkey with the script below and then when it comes time to best watch replica for sale remove I-frames in Avidemux simply focus the slider below the video and press Control+F to trigger the AutoHotkey script. The video above was datamoshed using this automation script. The following script for AutoHotkey automates I-frame removal in Avidemux, normally a manual process described in this tutorial. For Windows users AutoHotkey is free, open-source macro-creation and automation software that can handle some of the repetitive tasks involved in datamoshing. Datamoshing videos can be a time-consuming process, automation can help.

Convery datamoshed video with vlc