libcanberra 0.30

<html xmlns="http://www.w3.org/1999/xhtml">

<head>
<title>libcanberra 0.30</title>
<link rel="stylesheet" type="text/css" href="style.css" />
</head>

<body>
libcanberra 0.30

Copyright 2008-2012 Lennart Poettering <mzyvopnaoreen (at) 0pointer (dot) de>

    License
    News
    Overview
    Current Status
    Documentation
    Requirements
    Installation
    Acknowledgements
    Download

License

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 2.1 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

News

Tue 25 Sep
2012:  Version
0.30 released; Port to GStreamer 1.0.

Tue 15 May
2012:  Version
0.29 released; A couple of bugfixes, drop GConf usage.

Thu 24 Feb
2011:  Version
0.28 released; Hook properly into GNOME 3.0 sessions; this drops
support for GNOME 2.0 sessions, but not applications.

Fri 18 Feb
2011:  Version
0.27 released; Gtk+ 3.x fixes; add new tool to implement boot-up
sounds when used with systemd; other fixes

Mon 4 Oct
2010:  Version
0.26 released; Gtk+ 3.x fixes.

Sun 13 Jun
2010:  Version
0.25 released; Optionally build with Gtk+ 3.x in addition to Gtk+ 2.x.

Mon 19 Apr
2010:  Version
0.24 released; GTK code is now fine with GSEAL. Minor fixes in the
PulseAudio backend, other fixes.

Sat 20 Feb
2010:  Version
0.23 released; various minor fixes in the pulse and gstreamer
backends as well in the Vala API. Support for the recently
standardized Vorbis 6.1/7.1 multichannel modes.

Tue 20 Oct
2009:  Version
0.22 released; small fix to make sure we don't dereference a null
pointer. 

Fri 16 Oct 2009: 

href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.21.tar.gz">Version 0.21 released;
suppress casting warning

Thu 15 Oct 2009: 

href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.20.tar.gz">Version 0.20 released;
minor casting fix

Wed 14 Oct 2009: 

href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.19.tar.gz">Version 0.19 released;
some important fixes for the Gtk support

Sun 20 Sep 2009: 

href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.18.tar.gz">Version 0.18 released;
numerous updates for the Gtk support

Fri 12 Sep 2009: 

href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.17.tar.gz">Version 0.17 released;
add vala vapi file; numerous updates to Gtk support

Thu 27 Aug 2009: 

href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.16.tar.gz">Version 0.16 released;
add new <tt>ca_context_playing()</tt> call

Wed 5 Aug 2009: 

href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.15.tar.gz">Version 0.15 released;
bug fixes

Thu 2 Jul 2009: 

href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.14.tar.gz">Version 0.14 released;
bug fixes

Tue 23 Jun 2009: 

href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.13.tar.gz">Version 0.13 released;
multichannel support; gtk multihead support; bug fixes

Mon 13 Apr 2009: 

href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.12.tar.gz">Version 0.12 released;
changes include: various fixes and updates for the PulseAudio backend;
detect forks and return an error for all functions in that case

Wed 21 Jan
2009:  Version
0.11 released; changes include: major GStreamer backend fixes; update to libtool 2.2; a few other fixes

Mon 6 Oct
2008:  Version
0.10 released; changes include: install Gtk+ module using GConf; a few other fixes

Tue 9 Sep
2008:  Version
0.9 released; changes include: GStreamer fixes, include (optional)
libtdb based lookup cache.

Thu 28 Aug
2008:  Version
0.8 released; changes include: new OSS and GStreamer backend;
portability fixes for FreeBSD/Solaris; the multi backend works now

Thu 14 Aug
2008:  Version
0.7 released; changes include: documentation updates; various bug
fixes; add this web site/README; allow playback of event sounds with
only a sound file path specified; other changes

Overview

<tt>libcanberra</tt> is an implementation of
the XDG
Sound Theme and Name Specifications, for generating event sounds
on free desktops, such
as GNOME. It comes with several
backends
(ALSA, PulseAudio,
OSS, GStreamer, null) and is
designed to be portable. It consists of the following parts:

<tt>libcanberra</tt>: the main library
<tt>libcanberra-gtk</tt>: some glue code to make it easier to use <tt>libcanberra</tt> from Gtk+ applications
<tt>libcanberra-gtk-module</tt>: a Gtk+ module that uses <tt>libcanberra-gtk</tt> to trigger input feedback event sounds

For more information see the original announcement.

Current Status

<tt>libcanberra</tt> is mostly feature complete. For now however it
includes backends only for ALSA, PulseAudio, OSS and GStreamer.

<tt>libcanberra</tt> has been
declared a
blessed GNOME dependency.

The OSS driver is incomplete: only sound files that are in a format
natively understood by the sound card are supported. If the sample
type, channel map or sampling rate of the sound file are not supported
by the sound card no automatic conversion will take place and the file
will not be played. Also note that the OSS backend is most likely
incompatible with OSS4, due to subtle incompatibilities between OSS4
and the OSS 3.x.

It is recommended to always take the "shortest" path from
libcanberra to the audio device. I.e. don't use the GStreamer plugin
if libcanberra supports the final output target natively. Besides
being more resource-friendly and less error-prone, some advanced
functionality might get lost with each layer you add to your
stack. For example: while you could use libcanberra's Gstreamer
backend to output to a PulseAudio server this will not be able to make
use of sample cacheing or will be able to attach additional meta data
to the sounds played, which might be necessary for effects like
positional event sounds.

Documentation

You may browse the gtkdoc
generated programing
documentation of the API.

Requirements

Currently, <tt>libcanberra</tt> is tested on Linux only.

<tt>libcanberra</tt> was developed and tested on Fedora Rawhide
from August 2008, it should work on most other Linux
distributions (and maybe Unix versions) since it uses GNU autoconf and
GNU libtool for source code configuration and shared library
management.

<tt>libcanberra</tt> has no dependencies besides the OGG Vorbis
development headers and whatever the selected backends require. Gtk+
support is optional. An optional lookup cache can be used if Samba's
tdb trivial database is available.

Installation

As this package is made with the GNU autotools you should run
<tt>./configure</tt> inside the distribution directory for configuring
the source tree. After that you should run <tt>make</tt> for
compilation and <tt>make install</tt> (as root) for installation of
<tt>libcanberra</tt>.

Acknowledgements

Marc-André Lureau and Brian Cameron for the GStreamer backend.

Joe Marcus Clarke for the OSS backend.

Diego Elio Pettenò for various build system fixes.

Download

The newest release is always available from http://0pointer.de/lennart/projects/libcanberra/

The current release is 0.30

Get <tt>libcanberra</tt>'s development sources from the GIT repository (gitweb): 

git clone git://git.0pointer.de/libcanberra

If you want to report bugs, have questions or want to be notified about new releases, please join the <tt>libcanberra-discuss</tt> mailing list.

If you want to be notified about new git commits, please join the <tt>libcanberra-commits</tt> mailing list.

<tt>libcanberra</tt>'s bugs are tracked at bugs.freedesktop.org.

<address class="grey">Lennart Poettering <mzyvopnaoreen (at) 0pointer (dot) de>, September 2012</address>

</body>
</html>

source-git / libcanberra

Blame doc/README.html

libcanberra 0.30

License

News

Overview

Current Status

Documentation

Requirements

Installation

Acknowledgements

Download

Packit	3ae693
Packit	3ae693
Packit	3ae693	`<html xmlns="http://www.w3.org/1999/xhtml">`
Packit	3ae693
Packit	3ae693	`<head>`
Packit	3ae693	`<title>libcanberra 0.30</title>`
Packit	3ae693	`<link rel="stylesheet" type="text/css" href="style.css" />`
Packit	3ae693	`</head>`
Packit	3ae693
Packit	3ae693	`<body>`
Packit	3ae693	`libcanberra 0.30`
Packit	3ae693
Packit	3ae693	`Copyright 2008-2012 Lennart Poettering <mzyvopnaoreen (at) 0pointer (dot) de>`
Packit	3ae693
Packit	3ae693
Packit	3ae693	`License`
Packit	3ae693	`News`
Packit	3ae693	`Overview`
Packit	3ae693	`Current Status`
Packit	3ae693	`Documentation`
Packit	3ae693	`Requirements`
Packit	3ae693	`Installation`
Packit	3ae693	`Acknowledgements`
Packit	3ae693	`Download`
Packit	3ae693
Packit	3ae693
Packit	3ae693	`License`
Packit	3ae693
Packit	3ae693	`This program is free software; you can redistribute it and/or`
Packit	3ae693	`modify it under the terms of the GNU Lesser General Public License as`
Packit	3ae693	`published by the Free Software Foundation, either version 2.1 of the`
Packit	3ae693	`License, or (at your option) any later version.`
Packit	3ae693
Packit	3ae693	`This program is distributed in the hope that it will be useful, but`
Packit	3ae693	`WITHOUT ANY WARRANTY; without even the implied warranty of`
Packit	3ae693	`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU`
Packit	3ae693	`Lesser General Public License for more details.`
Packit	3ae693
Packit	3ae693	`News`
Packit	3ae693
Packit	3ae693	`Tue 25 Sep`
Packit	3ae693	`2012: Version`
Packit	3ae693	`0.30 released; Port to GStreamer 1.0.`
Packit	3ae693
Packit	3ae693	`Tue 15 May`
Packit	3ae693	`2012: Version`
Packit	3ae693	`0.29 released; A couple of bugfixes, drop GConf usage.`
Packit	3ae693
Packit	3ae693	`Thu 24 Feb`
Packit	3ae693	`2011: Version`
Packit	3ae693	`0.28 released; Hook properly into GNOME 3.0 sessions; this drops`
Packit	3ae693	`support for GNOME 2.0 sessions, but not applications.`
Packit	3ae693
Packit	3ae693	`Fri 18 Feb`
Packit	3ae693	`2011: Version`
Packit	3ae693	`0.27 released; Gtk+ 3.x fixes; add new tool to implement boot-up`
Packit	3ae693	`sounds when used with systemd; other fixes`
Packit	3ae693
Packit	3ae693	`Mon 4 Oct`
Packit	3ae693	`2010: Version`
Packit	3ae693	`0.26 released; Gtk+ 3.x fixes.`
Packit	3ae693
Packit	3ae693	`Sun 13 Jun`
Packit	3ae693	`2010: Version`
Packit	3ae693	`0.25 released; Optionally build with Gtk+ 3.x in addition to Gtk+ 2.x.`
Packit	3ae693
Packit	3ae693	`Mon 19 Apr`
Packit	3ae693	`2010: Version`
Packit	3ae693	`0.24 released; GTK code is now fine with GSEAL. Minor fixes in the`
Packit	3ae693	`PulseAudio backend, other fixes.`
Packit	3ae693
Packit	3ae693	`Sat 20 Feb`
Packit	3ae693	`2010: Version`
Packit	3ae693	`0.23 released; various minor fixes in the pulse and gstreamer`
Packit	3ae693	`backends as well in the Vala API. Support for the recently`
Packit	3ae693	`standardized Vorbis 6.1/7.1 multichannel modes.`
Packit	3ae693
Packit	3ae693	`Tue 20 Oct`
Packit	3ae693	`2009: Version`
Packit	3ae693	`0.22 released; small fix to make sure we don't dereference a null`
Packit	3ae693	`pointer.`
Packit	3ae693
Packit	3ae693	`Fri 16 Oct 2009:`
Packit	3ae693	`href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.21.tar.gz">Version 0.21 released;`
Packit	3ae693	`suppress casting warning`
Packit	3ae693
Packit	3ae693	`Thu 15 Oct 2009:`
Packit	3ae693	`href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.20.tar.gz">Version 0.20 released;`
Packit	3ae693	`minor casting fix`
Packit	3ae693
Packit	3ae693	`Wed 14 Oct 2009:`
Packit	3ae693	`href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.19.tar.gz">Version 0.19 released;`
Packit	3ae693	`some important fixes for the Gtk support`
Packit	3ae693
Packit	3ae693	`Sun 20 Sep 2009:`
Packit	3ae693	`href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.18.tar.gz">Version 0.18 released;`
Packit	3ae693	`numerous updates for the Gtk support`
Packit	3ae693
Packit	3ae693	`Fri 12 Sep 2009:`
Packit	3ae693	`href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.17.tar.gz">Version 0.17 released;`
Packit	3ae693	`add vala vapi file; numerous updates to Gtk support`
Packit	3ae693
Packit	3ae693	`Thu 27 Aug 2009:`
Packit	3ae693	`href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.16.tar.gz">Version 0.16 released;`
Packit	3ae693	`add new <tt>ca_context_playing()</tt> call`
Packit	3ae693
Packit	3ae693	`Wed 5 Aug 2009:`
Packit	3ae693	`href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.15.tar.gz">Version 0.15 released;`
Packit	3ae693	`bug fixes`
Packit	3ae693
Packit	3ae693	`Thu 2 Jul 2009:`
Packit	3ae693	`href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.14.tar.gz">Version 0.14 released;`
Packit	3ae693	`bug fixes`
Packit	3ae693
Packit	3ae693	`Tue 23 Jun 2009:`
Packit	3ae693	`href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.13.tar.gz">Version 0.13 released;`
Packit	3ae693	`multichannel support; gtk multihead support; bug fixes`
Packit	3ae693
Packit	3ae693	`Mon 13 Apr 2009:`
Packit	3ae693	`href="http://0pointer.de/lennart/projects/libcanberra/libcanberra-0.12.tar.gz">Version 0.12 released;`
Packit	3ae693	`changes include: various fixes and updates for the PulseAudio backend;`
Packit	3ae693	`detect forks and return an error for all functions in that case`
Packit	3ae693
Packit	3ae693	`Wed 21 Jan`
Packit	3ae693	`2009: Version`
Packit	3ae693	`0.11 released; changes include: major GStreamer backend fixes; update to libtool 2.2; a few other fixes`
Packit	3ae693
Packit	3ae693	`Mon 6 Oct`
Packit	3ae693	`2008: Version`
Packit	3ae693	`0.10 released; changes include: install Gtk+ module using GConf; a few other fixes`
Packit	3ae693
Packit	3ae693	`Tue 9 Sep`
Packit	3ae693	`2008: Version`
Packit	3ae693	`0.9 released; changes include: GStreamer fixes, include (optional)`
Packit	3ae693	`libtdb based lookup cache.`
Packit	3ae693
Packit	3ae693	`Thu 28 Aug`
Packit	3ae693	`2008: Version`
Packit	3ae693	`0.8 released; changes include: new OSS and GStreamer backend;`
Packit	3ae693	`portability fixes for FreeBSD/Solaris; the multi backend works now`
Packit	3ae693
Packit	3ae693	`Thu 14 Aug`
Packit	3ae693	`2008: Version`
Packit	3ae693	`0.7 released; changes include: documentation updates; various bug`
Packit	3ae693	`fixes; add this web site/README; allow playback of event sounds with`
Packit	3ae693	`only a sound file path specified; other changes`
Packit	3ae693
Packit	3ae693	`Overview`
Packit	3ae693
Packit	3ae693	`<tt>libcanberra</tt> is an implementation of`
Packit	3ae693	`the XDG`
Packit	3ae693	`Sound Theme and Name Specifications, for generating event sounds`
Packit	3ae693	`on free desktops, such`
Packit	3ae693	`as GNOME. It comes with several`
Packit	3ae693	`backends`
Packit	3ae693	`(ALSA, PulseAudio,`
Packit	3ae693	`OSS, GStreamer, null) and is`
Packit	3ae693	`designed to be portable. It consists of the following parts:`
Packit	3ae693
Packit	3ae693
Packit	3ae693	`<tt>libcanberra</tt>: the main library`
Packit	3ae693	`<tt>libcanberra-gtk</tt>: some glue code to make it easier to use <tt>libcanberra</tt> from Gtk+ applications`
Packit	3ae693	`<tt>libcanberra-gtk-module</tt>: a Gtk+ module that uses <tt>libcanberra-gtk</tt> to trigger input feedback event sounds`
Packit	3ae693
Packit	3ae693
Packit	3ae693	`For more information see the original announcement.`
Packit	3ae693
Packit	3ae693	`Current Status`
Packit	3ae693
Packit	3ae693	`<tt>libcanberra</tt> is mostly feature complete. For now however it`
Packit	3ae693	`includes backends only for ALSA, PulseAudio, OSS and GStreamer.`
Packit	3ae693
Packit	3ae693	`<tt>libcanberra</tt> has been`
Packit	3ae693	`declared a`
Packit	3ae693	`blessed GNOME dependency.`
Packit	3ae693
Packit	3ae693	`The OSS driver is incomplete: only sound files that are in a format`
Packit	3ae693	`natively understood by the sound card are supported. If the sample`
Packit	3ae693	`type, channel map or sampling rate of the sound file are not supported`
Packit	3ae693	`by the sound card no automatic conversion will take place and the file`
Packit	3ae693	`will not be played. Also note that the OSS backend is most likely`
Packit	3ae693	`incompatible with OSS4, due to subtle incompatibilities between OSS4`
Packit	3ae693	`and the OSS 3.x.`
Packit	3ae693
Packit	3ae693	`It is recommended to always take the "shortest" path from`
Packit	3ae693	`libcanberra to the audio device. I.e. don't use the GStreamer plugin`
Packit	3ae693	`if libcanberra supports the final output target natively. Besides`
Packit	3ae693	`being more resource-friendly and less error-prone, some advanced`
Packit	3ae693	`functionality might get lost with each layer you add to your`
Packit	3ae693	`stack. For example: while you could use libcanberra's Gstreamer`
Packit	3ae693	`backend to output to a PulseAudio server this will not be able to make`
Packit	3ae693	`use of sample cacheing or will be able to attach additional meta data`
Packit	3ae693	`to the sounds played, which might be necessary for effects like`
Packit	3ae693	`positional event sounds.`
Packit	3ae693
Packit	3ae693	`Documentation`
Packit	3ae693
Packit	3ae693	`You may browse the gtkdoc`
Packit	3ae693	`generated programing`
Packit	3ae693	`documentation of the API.`
Packit	3ae693
Packit	3ae693	`Requirements`
Packit	3ae693
Packit	3ae693	`Currently, <tt>libcanberra</tt> is tested on Linux only.`
Packit	3ae693
Packit	3ae693	`<tt>libcanberra</tt> was developed and tested on Fedora Rawhide`
Packit	3ae693	`from August 2008, it should work on most other Linux`
Packit	3ae693	`distributions (and maybe Unix versions) since it uses GNU autoconf and`
Packit	3ae693	`GNU libtool for source code configuration and shared library`
Packit	3ae693	`management.`
Packit	3ae693
Packit	3ae693	`<tt>libcanberra</tt> has no dependencies besides the OGG Vorbis`
Packit	3ae693	`development headers and whatever the selected backends require. Gtk+`
Packit	3ae693	`support is optional. An optional lookup cache can be used if Samba's`
Packit	3ae693	`tdb trivial database is available.`
Packit	3ae693
Packit	3ae693	`Installation`
Packit	3ae693
Packit	3ae693	`As this package is made with the GNU autotools you should run`
Packit	3ae693	`<tt>./configure</tt> inside the distribution directory for configuring`
Packit	3ae693	`the source tree. After that you should run <tt>make</tt> for`
Packit	3ae693	`compilation and <tt>make install</tt> (as root) for installation of`
Packit	3ae693	`<tt>libcanberra</tt>.`
Packit	3ae693
Packit	3ae693	`Acknowledgements`
Packit	3ae693
Packit	3ae693	`Marc-André Lureau and Brian Cameron for the GStreamer backend.`
Packit	3ae693
Packit	3ae693	`Joe Marcus Clarke for the OSS backend.`
Packit	3ae693
Packit	3ae693	`Diego Elio Pettenò for various build system fixes.`
Packit	3ae693
Packit	3ae693	`Download`
Packit	3ae693
Packit	3ae693	`The newest release is always available from http://0pointer.de/lennart/projects/libcanberra/`
Packit	3ae693
Packit	3ae693	`The current release is 0.30`
Packit	3ae693
Packit	3ae693	`Get <tt>libcanberra</tt>'s development sources from the GIT repository (gitweb):`
Packit	3ae693
Packit	3ae693	`git clone git://git.0pointer.de/libcanberra`
Packit	3ae693
Packit	3ae693	`If you want to report bugs, have questions or want to be notified about new releases, please join the <tt>libcanberra-discuss</tt> mailing list.`
Packit	3ae693
Packit	3ae693	`If you want to be notified about new git commits, please join the <tt>libcanberra-commits</tt> mailing list.`
Packit	3ae693
Packit	3ae693	`<tt>libcanberra</tt>'s bugs are tracked at bugs.freedesktop.org.`
Packit	3ae693
Packit	3ae693
Packit	3ae693	`<address class="grey">Lennart Poettering <mzyvopnaoreen (at) 0pointer (dot) de>, September 2012</address>`
Packit	3ae693
Packit	3ae693	`</body>`
Packit	3ae693	`</html>`

source-git / libcanberra

Source Code

Blame doc/README.html