avidemux Avidemux is a free, open source video editor used for cutting, filtering, and encoding with support for a number of different file. P-frame duplication in avidemux on Mac OS X [image] I had thought it wasn’ t possible to install a version of avidemux that was old enough. I have researched many DataMoshing tutorials online and many of Open ‘ AviDemux ‘ Go to ‘FILE’ and load in the video you want to use.
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Datamoshing is the process of manipulating the data of media files in order to achieve visual or auditory effects when the file is decoded. In some cases the term datamoshing is used to describe this process applied to any type of avdiemux file — I like to think it applies solely to video since it results in moving images being moshed together.
Regardless of the application of the term, datamoshing videos can be done quite easily with free, cross-platform tools. Modern compressed video files have very complex methods of reducing the amount of storage or bandwidth needed to display the video.
Frames which store an entire picture are called I-frames Intra-codedand can be displayed without any additional information.
When a video is encoded, or compressed, a combination of these types of frames are used. More information on frame types can be found here. If an I-frame is corrupted, removed or replaced the data contained in the following P-frames is applied to the wrong picture. In the above video I-frames have been removed and so instead of scenes changing properly you see the motion from a new scene applied to a picture from a previous frame.
This process of corrupting, removing or replacing I-frames is a very popular video datamoshing technique and what this tutorial will focus on. Another video datamoshing technique involves selecting one or more P-frames and duplicating them multiple times consecutively. Generally the effects of datamoshing are viewed as errors, or undesirable and thus applications like Avidemux try their best to correct these errors and eliminate glitching distortion.
After downloading and installing Avidemux 2.
[TUTORIAL] Make Video Glitch Art: How to Datamosh, in Plain English – Art! – Glitchet Forum
Next click the Configure button below the Video dropdown on the left. With this setting changed the video must be saved and then reloaded for it to take effect. Save the video with a new name to indicate that the Maximum I-frame Interval has been adjusted. Open the new video, select No if Avidemux displays aidemux warnings. Once opened, change the Video dropdown on the left side of the interface back to Copy.
I 00 and Frame Type: The first frame will most likely be an I-frame and should be left in so that the video can start properly. In order to remove an I-frame we must select it, this is done by marking an in point and an out point, these points are referred to as A and B in Avidemux and the frames of video between these two points are considered selected.
Making Video Glitch Art: How to Datamosh, in Plain English
Once you have found an I-frame click on the mark A button under the slider. You should see a blue border identify the new avldemux, starting at the slider grip and encompassing the remaining frames in the video. Pressing delete now would delete the current Avdemux and all subsequent frames so we have to reduce the selection to only the I-frame. This is done be pressing the Right Arrow key to move to the next frame and then clicking the mark B button below the slider.
The blue selection border should update to show only the I-frame selected as illustrated below.
Now that only a single I-frame is selected press the Delete key on your keyboard to remove it. To remove all the I-frames use the Up Arrow to move to the next one and repeat the removal process. The video included in this post was datamoshed using this technique, however the audio was slowed down using traditional video editing.
For those of you tutoeial to run Avidemux 2. What exactly do you mean by data files? Have you tried renaming them to. Hope it will help. Mac os x el capitan Just wondering where you got 2. Seems to be hard to find on the internet! Hey, so I get to the step where I switch it to xvid and then I save the new file. I re-open that file, but there are no I-Frames any longer. Am I doing something wrong?
I switched the max to and saved it as a new file and then run into this roadblock. Perhaps post in the forums with more detail. There are I-frames tutogial saving as Xvid and absolutely non after? I notice that the datamoshed video has a slight green tint when editting it back into a project containing the original video footage.
The only thing that comes to mind is to use high quality input videos. Running on Windows bit and downloaded the link posted above to Avidemux.
It seems as though we may need to find an older Mac that cannot be updated, just to do this single effect. People loved my videos I did years ago and now I cannot replicate the process. Hi, it seems that with this version of Avidemux for Mac we must delete a file: How do you delete this file? Hi, thanks a lot for this tutorial, works fine. I want to continue the editing in premiere pro cs6 but says the file i import its damaged, of course eheh do you know how can i import it to premiere?
Ensure that the resulting file has the. Avidemux lets you name files anything which can result in output files having the wrong extension causing issues with other software. Hi Phil, could you help us out with a datamoshed image? Thank you so much for this tutorial! He probably meant you have to save it as a proper video file again.
This process will add new I-frames, so you can start the whole proces again.
Hi, im trying to do this with a video i made. Its multiple pictures so kind of in a sense a timelapse. When i try to do this process there are no i-frames.
How to datamosh videos | Datamoshing
Similarly when i lower the i-frame interval, i get more i-frames showing, but when i delete them, the video doesent mosh. Is this due to the video being pictures in a way? Its been saved and exported as H. Question, what about if you wanted the edited video to still have the same runtime as the original? The glitch doesnt seem to work when i paste the previous frame to the old iframe location.
Your email address will not be published. You can try a portable or older version of Avidemux available here, http: What exact version of Avidemux and what operating system are you using? You could try downloading and installing the codec from here, https: Looks like JPEG corruption.
You can see similar results here, https: If a file does not have enough i frames, is there a way to go around this? Could you elaborate a little more on this, please? Apologies for the n00b question. Took me a couple of hours but it worked, thank you very much.
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