View source for VLC HowTo/Add a logo

{{howto|add a logo on your video using the logo filter}}

= Idea =
This How To just explains how to use the logo filter in order to add a logo on your videos, like a TV.

== Local ==
 vlc --sub-filter logo --logo-file ''logo.png'' ''video.avi''

== Stream ==
 vlc --logo-file ''logo.png'' ''video.avi'' --sout "#transcode{vcodec=...,vb=...,sfilter=logo}:std{...}"

Make sure you do not specify --sub-filter logo, and that you specify a vcodec= value in the transcode part.

== Save the new video locally ==
 vlc --logo-file ''logo.png'' ''video.avi'' --sout "#transcode{vcodec=...,vb=...,sfilter=logo}:std{access=file,dst=''new_video.avi'' }

== Dynamically change logo using [[Console | RC]], then send output to stream and local debugging display ==

 vlc -I rc --logo-file nonexistent_dummy.png --sout "#transcode{vcodec=...,vb=...,sfilter=logo}:duplicate{dst=display,dst=std{...}}"
 
 # Once the program has started
 add ''video.avi''
 # If using VLC 0.8.6 or older:
 logo-file ''logo.png''
 # If using VLC 0.9.0 or newer (see NEWS for details about the new syntax):
 @logo logo-file ''logo.png''

This requires a <code>--logo-file</code>, but for some reason it won't work if you specify "<code>--sub-filter logo</code>". Nor does it apparently work if the <code>transcode</code> doesn't specify <code>[[Codec#Video_Codecs | vcodec=]]</code>.

A non-existent logo-file currently removes any logos from the video, and does not result in an error. Since you must specify one on the command-line, "<code>nonexistent_dummy.png</code>" was used.