Free ogg vorbis software for linux

Ogg Vorbis is a fully open, non-proprietary, patent-and-royalty-free, general-purpose compressed audio format for mid to high quality (8kHz-48.0kHz, 16+ bit, polyphonic) audio and music at fixed and variable bitrates from 16 to 128 kbps/channel.

This places Vorbis in the same competitive class as audio representations such as MPEG-4 (AAC), and similar to, but higher performance than MPEG-1/2 audio layer 3, MPEG-4 audio (TwinVQ), WMA and PAC.

Vorbis is the first of a planned family of Ogg multimedia coding formats being developed as part of Xiph.orgs Ogg multimedia project.

libVorbis is the core Ogg stream / Vorbis engine.

Ogg Vorbis Tag Editor for XMMS is a plugin for XMMS which allows you to edit the tags in ogg vorbis files. The editor is built into the vorbis plugin for XMMS.

Ogg::Vorbis::Header is an object-oriented interface to Ogg Vorbis information and comment fields.

SYNOPSIS

use Ogg::Vorbis::Header;
my $ogg = Ogg::Vorbis::Header->new("song.ogg");
while (my ($k, $v) = each %{$ogg->info}) {
print "$k: $vn";
}
foreach my $com ($ogg->comment_tags) {
print "$com: $_n" foreach $ogg->comment($com);
}
$ogg->add_comments("good", "no", "ok", "yes");
$ogg->delete_comment("ok");
$ogg->write_vorbis;

This module presents an object-oriented interface to Ogg Vorbis files which allows user to view Vorbis info and comments and to modify or add comments.

CONSTRUCTORS

new ($filename)

Partially opens an Ogg Vorbis file to ensure it exists and is actually a Vorbis stream. It then closes the filehandle. It does not fill in the objects data fields. These fields will be automatically filled the first time they are accessed using the objects instance methods. Returns undef if there is a problem opening the file or the file is not valid Ogg Vorbis.

load ([$filename])

Opens an Ogg Vorbis file, reads its information, and then closes the filehandle. Returns undef if there is a problem opening the file or the file is not valid Ogg Vorbis. This is both a constructor and an instance method. The filename is required in constructor context, but should be left out when you call this as an instance method on an object. When called as an instance method, it (re)loads the info and comment data from the file. This can be used to reset the state of the object if write_vorbis hasnt been called. Note that the path parameter is ignored in instance context.

INSTANCE METHODS

These methods may be called on actual Header objects, using the -> operator or indirect objects as you prefer.

info ([$key])

Returns a reference to a hash containing format information about the Vorbis file. Hash fields are: version, channels, rate, bitrate_upper, bitrate_nominal, bitrate_lower, and bitrate_window, length. The bitrate_window value is currently unused by the vorbis codec. You can modify the referenced hash if you want, but I wouldnt suggest it.

The optional key parameter allows you to extract a single value from the internal hash (passed by value, not reference). If the key is invalid, undef is returned.

comment_tags ()

Returns an array holding the key values of each comment field. You can then use these values to access specific fields using comment. This may seem somewhat clunky at first but it will speed up most programs. In addition, it makes it easier to support the Ogg Vorbis comment standard which allows multiple fields with the same key.

comment ($key)

Returns a list of comments given a key. If the key does not exist, returns undef.

add_comments ($key, $value, [$key, $value, ...])

Adds comments with the given keys and values. Takes an array of alternating keys and values as parameters. Keys and values should be valid ascii in the range 0x20 - 0x7D and the key should exclude 0x3D (=). This is a subset of the Vorbis standard which allows this range for the key field and all of utf8 for the value field. This will be fixed in future a release.

If an odd-length array is passed in the routine will fail and return undef. Key and value will be trimmed of characters which do not match the format requirement.

edit_comment ($key, $value, [$num])

Edits a given comment field. The optional num field is used to differentiate between two comments with the same key. If no num is supplied, the first value--as reported by comment--is modified. If the key or num are invalid, nothing is done and undef is returned. If all goes well, the old value is returned.

delete_comment ($key, [$num])

Deletes the comment given by key. The optional num value can be used to specify which comment to delete, given duplicate keys. Leaving num out will result in only the first instance being deleted. Returns undef if key or num are invalid. If all goes well, the value of the deleted comment is returned.

clear_comments ([@keys])

Deletes all of the comments which match keys in the input array or all of the comments in the stream if called with no arguments. Returns undef if any key is invalid, although all keys in the input array up until that key will be cleared. Returns true otherwise.

write_vorbis ()

Write object to its backing file. No comment modifications will be seen in the file until this operation is performed.

path ()

Returns the path/filename of the file the object represents.

Dirogg is a simple script for migrating your entire music collection from mp3 to Ogg Vorbis (ogg).
dirogg is a recursing script, which means you run it at the top directory of your music collection, and it will take care of the rest. Enjoy!
Installation:
Just copy the "dirogg" script to a directory in your path, like /usr/local/bin.
To use, enter a directory in which you want to convert all mp3 files to ogg. It will then recurse into subdirectories and convert these files to ogg as well. Note that your mp3 files will not be removed unless you set so in.
Enhancements:
- Parallelizing support was added to process multiple files simultaneously.

alogg is an Ogg/Vorbis addon library for Allegro.

alogg is a library which makes it easier to use Ogg/Vorbis streams with Allegro. It offers facilities to decode, stream, and encode Ogg/Vorbis streams, and integrates those facilities with Allegros datafile and sample loading routines.

alogg comes with a sample player, streamer, and encoder based on Allegros sound routines.

Auogg is a simple and straightforward Ogg/Vorbis player for the Network Audio System. Auogg is based on libaudio, libvorbis and libogg, and relies on Argp facility of the GNU C Library to provide command line interface. As a result, its really tiny (about 15 KiB source and about 10 KiB compiled binary.)

Building

To build on a system with libraries in usual places, one could just run make and get auogg executable, which should be then installed manually. If you wish to provide your own message catalogs (and there are none in the tarball), you might need to set localedir Make variable to point to the desired locale directory. By default, its set to /usr/share/locale.

You could as well turn off gettext support completely by modifying Makefile to predefine ENABLE_NLS with the value of zero.

Open issues (TODO)

Included Makefile is way too small. It even lacks an install target!
Although being internationalized (moslty, I believe), it currently lacks actual localization by means of message translation (i. e. gettext) catalogs. Most of the strings were, actually, appropriately marked and the necessary functions are called from main, but I havent tested whether it really works.

dvdtoogg is a script for converting the audio content of a DVD to a multi-channel Ogg Vorbis file. (From 2 to 6 channels are supported.)

dvdtoogg uses mplayer to find and extract DVD tracks, and uses oggenc to encode to a stereo or 5.1 Ogg Vorbis file.

I created this script because transcode is not able to rip in 5.1 channels I tried to keep this script as simple as possible. The script is just a simple frontend to player/oggenc.

There is nothing magic, but I spent many hours to find the clever way to do that. I hope this script will help you to save some time in converting DVD to OGG. If you like this script and/or if you have some comments/patches, email me.

OggCarton is a free, open source, home jukebox system that rips, indexes, and manages playlists for Ogg Vorbis music files. OggCarton a web server for playing files on your home network. Compatible with existing MP3 files.
Beta source code and binary installers are available for Windows, Linux, and Mac OS X. Please be sure to report any bugs you may encounter. Though the web server includes access control, you may want to run the web server behind a firewall for an additional layer of security against unauthorized users accessing your music files.
Main features:
- Runs on Windows 2000/XP, Mac OS X, and Linux.
- Compatible with any MP3 or Ogg Vorbis files you may already have.
- Ripping to Ogg Vorbis format -- built-in ripper for Mac OS X and Windows, uses the cdparanoia ripper under Linux.
- Indexing --
- Automatically creates a keyword-searchable database of your Ogg Vorbis files.
- Built-in ID tagging through freedb.org.
- Database can import your existing Ogg Vorbis and MP3 files.
- Playing -- Uses a standard media player (such as WinAmp, iTunes, or XMMS) to play your Ogg Vorbis and MP3 files.
- Home networking -- has an integrated web server so you can play your files from another machine on your home network.
- Requires NO external database software.
- Requires NO external web server
OggCarton is not designed for illegal distribution of music, nor is it particularly suited for doing so (it is not a "file-sharing" or peer-to-peer program and there is no net-wide file search capability). Ripping your own CDs for your own personal use is legal in the United States (and most other countries). Distributing the files to other people is not. As the good folks at Apple say, "Dont steal music." You dont want the karma, and you especially dont want the RIAAs lawyers knocking at your door.