If you want to add or change the meta information of your video/audio files, you probably can find a GUI driven software that does just that for you. But if you happen to work on your media server in command line, and want to change a file here and there via the command line.
You have some options as:
mencoder, ogmtools, mkvtoolsnix, ffmpeg.
Of all the above, ffmpeg seems to support the largest set of container formats.
Example:
You have a video file:
videofile.mkv
and want to add or change some meta data:
title =
"My Title",
comments =
"My Comments"
Here is how you do it @ the command line, given you have ffmpeg and the needed codexes installed properly.
ffmpeg -i videofile.mkv -vcodec copy -acodec copy -metadata title="My Title" -metadata comments="My Comments" NewFile.mkv
Other meta tags you can manipulate for audio & video files are:
album -- name of the set this work belongs to
album_artist -- main creator of the set/album, if different from artist.
e.g. "Various Artists" for compilation albums.
artist -- main creator of the work
comment -- any additional description of the file.
composer -- who composed the work, if different from artist.
copyright -- name of copyright holder.
creation_time-- date when the file was created, preferably in ISO 8601.
date -- date when the work was created, preferably in ISO 8601.
disc -- number of a subset, e.g. disc in a multi-disc collection.
encoder -- name/settings of the software/hardware that produced the file.
encoded_by -- person/group who created the file.
filename -- original name of the file.
genre -- <self-evident>.
language -- main language in which the work is performed, preferably
in ISO 639-2 format. Multiple languages can be specified by
separating them with commas.
performer -- artist who performed the work, if different from artist.
E.g for "Also sprach Zarathustra", artist would be "Richard
Strauss" and performer "London Philharmonic Orchestra".
publisher -- name of the label/publisher.
service_name -- name of the service in broadcasting (channel name).
service_provider -- name of the service provider in broadcasting.
title -- name of the work.
track -- number of this work in the set, can be in form current/total.
variant_bitrate -- the total bitrate of the bitrate variant that the current stream is part of
