Free audio files extensions software for linux

Audio::File is a audio file abstraction library.

SYNOPSIS

use Audio::File;
my $file = Audio::File->new( "foo.bar" );

print "The ". $file->type() ."-file ". $file->name
." is ". int $file->length() ." seconds long.n";

print "Its interpreted by ". $file->tag->artist()
." and called ". $file->tag->title() ".n";

Audio::File abstracts a single audio file, independant of its format. Using this module you can access a files meta-info like title, album, etc. as well as the files audio-properties like its length and bitrate.

Currently only the formats flac, ogg vorbis and mp3 are supported, but support for other formats may be easily added.

The Audio File Library provides a uniform and elegant API for accessing a variety of audio file formats, such as AIFF/AIFF-C, WAVE, NeXT/Sun .snd/.au, Berkeley/IRCAM/CARL Sound File, Audio Visual Research, Amiga IFF/8SVX, and NIST SPHERE. Supported compression formats are currently G.711 mu-law and A-law and IMA and MS ADPCM.

Key goals of the Audio File Library are file format transparency and data format transparency. The same calls for opening a file, accessing and manipulating audio metadata (e.g. sample rate, sample format, textual information, MIDI parameters), and reading/writing sample data will work with any supported audio file format. Likewise, the format of the audio data presented to the application need not be tied to the format of the data contained in the file.

The Audio File Library distributed under the GNU Library General Public License.

Folder Extension Wizard provides a small extension that Loads extensions from folders (unpacked xpi files).

A wizard is a user interface element where the user is led through a sequence of dialogs. Unlike most modern user interface paradigms, the user is forced to perform the task in a specific sequence.

However, for complex or infrequently performed tasks where the user is unfamiliar with the steps involved, it may make it easier for them to perform the task. In some open source software, wizards are called Druids.

ffmpeg-php is an extension for PHP that adds an easy to use object-oriented API for retrieving information from movies and audio files.
It has methods for returning frames from movie files as images that can be manipulated using PHPs image functions.
This works well for automatically creating thumbnail images from movie files. ffmpeg-php is also useful for reporting the duration and bitrate of audio files (mp3, wma...). ffmpeg-php can access many of the formats supported by ffmpeg.
Main features:
- Simple object oriented interface.
- Has methods to grab frames from movie files and return them as images that can be manipulated using PHPs built-in image functions. This is great for automatically creating thumbnails for movie files.
- Has the ability to use ffmpegs excellent resampling and cropping features on returned images.
- Provides access to data from mp3 files such as duration, bitrate and track meta information.

Nautilus actions is an extension for Nautilus, the gnome file manager. Nautilus-actions allow to configure program to be launch on files selected into Nautilus interface.

Each time you right-click on one or several selected files in nautilus, nautilus-actions will parse its config files to see if a program has been set for this selection. If it is the case, it will add an item in the menu that allow you to execute the program on the selected files.

This extentions is highly inspired from nautilus-sendto extentions from Roberto Majadas.

.AudioLink is a tool that makes searching for music on your local storage media easier and faster. Your searches can include a variety of criteria, like male artists, female artists, band, genre, etc. It is flexible, you have options of using a command line interface, multiple choices of GUIs, designing your own search criteria, etc. The possibilities are endless.
Currently, its called AudioLink, cos the first milestone would just handle audio files... subsequent versions will be capable of searching for content in HTMLs, PDFs, PSs and other file formats.
This project started with my need of searching for files on my local machine, be it music or any stored information in .txt, .html, .pdf formats. The main goal of the software is to make searching for _content_ on local file systems (or remote file systems mounted in the local namespace) easier. This differs from other search tools, which look for files, not content. You cant use traditional tools like grep to search for songs or a particular artist, for example.
If you are in search of such a tool, AudioLink is the right choice for you for you!
The project will further be improved upon to include a LAN crawler, which will sniff on NFS, SMB, FTP, among other protocols, to collect information on the files residing on other machines as well.
Enhancements:
- * code/alsearch:
1. config file isnt perl code now; simple "a = b" stuff
2. command-line args override config file options
- code/alfilldb: ouch! one more ref. to alfilldb_usage code/alfilldb: removed ref. to alfilldb_usage.txt
- code/alfilldb:
- config file isnt perl code now; simple "a = b" stuff
- command-line args override config file options
- code/audiolink: 1. clean up the printed statements.
- added a verbose mode
- config file isnt perl code now; simple "a = b" stuff
- default to localhost for the host field
- command-line args override config file options
- cvsignore: ignore debian/ and gui/
- Documentation/alsearch_usage.txt, Documentation/alfilldb_usage.txt: remove the _usage.txt files; we now have *_doc.html files.
- INSTALL:
- You can now use the audiolink script to create the datbase and table.
- README: better 1st para
- TODO: 1. We have a config file
- Debian packaging is done; get rpms done now

Audio::TagLib::File is a file class with some useful methods for tag manipulation.

This class is a basic file class with some methods that are particularly useful for tag editors. It has methods to take advantage of ByteVector and a binary search method for finding patterns in a file.

DESTROY()

Destroys this File instance.

PV name()

Returns the file name in the local file system encoding.

Tag tag() [pure virtual]

Returns this files tag. This should be reimplemented in the concrete subclasses.

AudioProperties audioProperties() [pure virtual]

Returns this files audio properties. This should be reimplemented in the concrete subclasses. If no audio properties were read then this will return undef.

BOOL save() [pure virtual]

Save the file and its associated tags. This should be reimplemented in the concrete subclasses. Returns true if the save succeeds.

ByteVector readBlock(UV $length)

Reads a block of size $length at the current get pointer.

void writeBlock(ByteVector $data)

Attempts to write the block $data at the current get pointer. If the file is currently only opened read only -- i.e. readOnly() returns true -- this attempts to reopen the file in read/write mode.

IV find(ByteVector $pattern, IV $fromOffset = 0, ByteVector $before = ByteVector::null)

Returns the offset in the file that $pattern occurs at or -1 if it can not be found. If $before is set, the search will only continue until the pattern $before is found. This is useful for tagging purposes to search for a tag before the synch frame.

Searching starts at $fromOffset, which defaults to the beginning of the file.

This has the practial limitation that $pattern can not be longer than the buffer size used by readBlock(). Currently this is 1024 bytes.

IV rfind(ByteVector $pattern, IV $fromOffset = 0, ByteVector $before = ByteVector::null)

Returns the offset in the file that $pattern at or -1 if it can not be found. If $before is set, the search will only continue until the pattern $before is found. This is useful for tagging purposes to search for a tag before the synch frame.

Searching starts at $fromOffset and proceeds from the that point to the beginning of the file and defaults to the end of the file.

This has the practial limitation that $pattern can not be longer than the buffer size used by readBlock(). Currently this is 1024 bytes.

void insert(ByteVector $data, UV $start = 0, UV $replace = 0)

Insert $data at position $start in the file overwriting $replace bytes of the original content.

This method is slow since it requires rewriting all of the file after the insertion point.

void removeBlock(UV $start = 0, UV $length = 0)

Removes a block of the file starting a $start and continuing for $length bytes.
This method is slow since it involves rewriting all of the file after the removed portion.

BOOL readOnly()

Returns true if the file is read only (or if the file can not be opened).

BOOL isOpen()

Since the file can currently only be opened as an argument to the constructor (sort-of by design), this returns if that open succeeded.

BOOL isValid()

Returns true if the file is open and readble and valid information for the Tag and / or AudioProperties was found.

void seek(IV $offset, PV $p = "Beginning")

Move the I/O pointer to $offset in the file from position $p. This defaults to seeking from the beginning of the file.

void clear()

Reset the end-of-file and error flags on the file.

IV tell()

Returns the current offset withing the file.

IV length()

Returns the length of the file.

BOOL isReadable(PV $file) [static]

Returns true if $file can be opened for reading. If the file does not exist, this will return false.

BOOL isWritable(PV $file) [static]

Returns true if $file can be opened for writing.

%_Position

Position in the file used for seeking. C<<less