Documentation:Video and Audio Filters

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VLC User Guide

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Video and Audio Filters
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VLC includes a system of filters that allow you to modify the audio and video.

Deinterlacement and Post Processing

VLC is able to deinterlace a video stream using different deinterlacement methods. Deinterlacement can be enabled in the Video menu, Deinterlacement menu item. The Blend methods gives the best results in most cases. The discard method is a less resource consuming alternative, although its results may be slightly compromised.

On some particular streams (MPEG 4, DivX, Xvid, Sorenson, etc.), some additional image filtering can be applied to the video before display, improving its quality in some cases. This can be enabled by using the Post processing menu item in Video. Different levels of post processing can be chosen here. A higher level means more filtering.

Video filters


VLC features several filters able to change the video (distortion, brightness adjustment, motion blurring, etc.).

In Windows and Linux, the user must go to the Effects and Filters in the Tools menu item. A dialogue box entitled "Adjustments and Effects" will appear.

Effects and Filters dialogue box as it appears in a pre-release version of 2.0.0 on Ubuntu Linux

In macOS you can enable these filters through the Extended Controls panel. Click on the triangle next to Video filters to select your filters or expand the Adjust Image section to change the contrast, hue, etc.

Filter dialogue box as it appears in macOS interface


Filter dialogue box as it appears in iOS devices

Example of combined effects on a video:

A striking image of a video with many effects


You can easily rotate a video. Open the Effects and Filters dialog, in the Tools menu

A rotated image of a Big Buck Bunny video

Select the Video Effects tab, then the Geometry one.

Check the Transform checkbox to use rotation presets (90°, 180°, 270°) or check the Rotate checkbox to manually select the angle you wish to apply.

The rotate video dialogue box under the wxWidgets interface

Audio filters


VLC features a 10-band graphical equalizer, a device used to alter the relative frequencies of audio (e.g. for a bass boost). You can display it by activating the advanced GUI on wxWidgets or by clicking the Equalizer button on the macOS interface. The following image is the interface of the audio equalizer in the Windows and GNU/Linux interface.

Equalizer dialogue box as it appears in wxWidgets for Windows and Linux

The equalizer in the macOS interface

Equalizer dialogue box as it appears in macOS
Equalizer dialogue box as it appears in iOS devices

Presets are available in all of these dialog boxes.

Other audio filters

At the moment, VLC features two other audio filters: a volume normalizer and a filter providing sound spatialization with a headphone. They can be enabled in the Effects and Filters menu item in the Tools tab of the Windows and GNU/Linux interface and in the Audio section of the Extended Controls panel of the macOS interface.

For better control, you need to go to the preferences. To select the filters to be enabled, go to Audio, then to Filters. In the "audio filters" box, enter the names of the filters to enable, separated by commas. Valid names are "equalizer", "normvol" and "headphone".

If you want to tune the behavior of these filters, go to Audio, Filters, [your filter]. The equalizer and headphone filters can be tuned.

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