Imported Upstream version 0.2.0.dfsg.1

Main author, project leader:
Dennis Smit <>
Duilio J. Protti <>
Vitaly V. Bursov <>
Gustavo Sverzut Barbieri <> (From freevo)
The original JESS work:
Remi Arquier <>
The original Infinity work:
Julien Carme <>
The original lv_gltest work, which is the gl analyzer from xmms:
Peter Alm, Mikael Alm, Olle Hallnas, Thomas Nilsson and 4Front Technologies
Current maintainer, port to libvisual, cleanups, fixes, additions by:
Dennis Smit <>
The previous maintainer and hackers:
Pascal Brochart <>
tunnel effect derived from the tides of time by
Mirko Teran-Ravnikar <>
child effect derived from the star child demo by
Andreas Gustafsson <>
energy effect derived from the tesla demo by
Konrad "Yoghurt" Zagorowicz (sunflower)
knot effect derived from the knot another torus demo
by Jan Horn <>
tentacles derived from the biohazard demo by
Jan Horn <>
spectrum analyzer derived from the spectrum plugin
by the XMMS team
face effect derived from the radial blur demo by
Dario Corno / Jeff Molofee and converted to delphi
by Jan Horn <>
twist effect derived from the twisting cylinder by
Andreas Gustafsson <>
beat detection written by Steve Kirkendall <>
Delphi/C | C++/C conversion by Pascal Brochart <>
Richard Asbury <>
Linux port by: Jean-Christophe Hoelt <>
Many thanks for quality suggestions and input:
Jean-Christophe Hoelt <> (Goom2 main author)
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## Process this file with automake to generate a
SUBDIRS = plugins
EXTRA_DIST = libvisual-plugins.spec
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NEWS - list of user-visible changes between releases
of Libvisual plugins.
These are only visible changes, for more details look at the ChangeLog.
New in 0.2.0: 2005-02-09:
* Adding pseudotoad flower actor plugin, ported. (Dennis)
* Adding dancing particles plugin, ported. (Dennis)
* Including G-Force in package. (Dennis)
* Including Nebulus in package. (Dennis)
* Adding corona actor plugin, ported. (Dennis, Jean-Christophe)
* Fixed bumpscope actor plugin. (Dennis)
* MMX code added to JESS, alphablend, oinksie (Dennis)
* Fixing many bugs in plugins. (Everyone)
* Adding VisUI userinterfaces to plugins, not usable yet
because there is no client support yet. (Dennis)
New in 0.1.7: 2004-10-14:
* Updates to API changes.
* All plugins use the VisRandom stuff for randomizing.
* New slide morph plugin.
* Bugfix in flash plugin, that caused it to not work on 8bits depth.
New in 0.1.6: 2004-09-10:
* New ALSA capture input plugin. (Vitaly)
* New MPlayer export input plugin. (Gustavo)
* New Plazma actor plugin, ported from xmms. (Dennis)
* New Jakdaw actor plugin, ported from xmms. (Dennis)
* New Bumpscope actor plugin (has issues), ported from xmms. (Dennis)
* New GdkPixbuf actor plugin to be used with images. (Dennis)
New in 0.1.5: 2004-06-27:
* Removed the videotest plugin, it was used for early debugging.
* Esound dependency lowered from 0.2.29 to 0.2.28.
* Major cleanups and a new build tree.
-- What is libvisual --
Libvisual is a library that acts as a middle layer between
applications that want audio visualisation and audio visualisation
Libvisual is aimed at developers who, have a need for audio
visualisation and those who actually write the visualisation
By writing an audio visualisation plugin for libvisual
every application that uses libvisual is capable of using
this plugin. The application handles the end drawing of
the graphics and thus rendering done by plugins using
libvisual can be drawn everywhere. That is but not limited
to: ascii art, sdl, on gl object as a surface , alpha blended
or just, anywhere.
Libvisual also provides complete easy to use transparant
depth transformation, so that even when the display
isn't supported by the plugin, libvisual will make
it suite. Besides using libvisual for rendering your
2d buffers, you can also render openGL when an openGL
context is open. Besides you don't have to render
to a buffer. You can also make hardware hacks
that do visualisation using libvisual. There are simply no borders
-- Why should you use libvisual --
As an application writer, using libvisual provides you an easy
way to do audio visualisation. Also when using libvisual you'll
have easy access to all the plugins that are written for libvisual.
As an plugin writer, libvisual provides a nice host for your plugin.
It runs analyzes over the audio input for easy usage and it handles
all the displaying stuff through the library and application. And
mainly your plugin will be accessible to all the applications.
-- License --
The plugins in the plugins/ directory are licensed under the GPL
unless noted otherwise.
-- Development --
If you'd like to use libvisual for your applications, write plugins
or hack on the core. Please read HACKING. It contains some very
useful information regarding to policies and such.
-- Requirement --
The library is quite self containing and there is almost no depency
at all to get it working. Libvisual it self does not depend on
anything besides glibc ofcourse.
ESD: To compile the esd input plugin esd and esd development packages
needs to be installed.
Goom2: To compile the goom2 plugin goom2k4-devel-15 or higher needs
to be installed.
lv_gltest: To compile the opengl libraries and development packages
needs to be installed.
-- Compiling and installing --
To set a prefix use --prefix, other options can be seen by
using ./configure --help
This will compile the plugins
make install
This will install the plugins
Update 'rand' usage everywhere, to use randomness from libvisual, through the plugin random context.
update doc on goom version required
check copyrights add copyright notices to all the files.
input/esd: (post 0.1)
Esd plugin isn't timing.
I HATE THE WAY ESD BLOCKS ON EVERYTHING. (actually i just hate esd generally)
(keep in minds that stuff will change within audio after 0.1)
Esd plugin isn't timing, should be fixed when buffer queues land before 0.2 (post 0.1)
ESD BLOCKS ON LIKE EVERYTHING (post 0.1) (if it is fixable at all)
Fix the small issues within the plugin
(alsa_init) Take parameters from the 'params'
field of the given plugin.
Make an usound server plugin (someone else)
Make an artsd plugin (someone else, i'm not running kde)
mplayer mmap output:
visual_video_set_depth (video, V
Make an mplayer mmap thingy plugin (someone else)
finish it actually.
Any other input method:
Make plugins for these (someone else),
remember rather add a plugin than use the callback method
so everyone can make use of it.
A plugin which can be used to easily import frames into libvisual
through mmap, shared mem, function callback. SPECIALIZED PLUGIN
Fix the light.
make sure the states are being resetted very well.
cleanup the code.
translate from french to english (some of the code).
cleanup, hang the configs to params, have some automatic
config cycling.
build tables in strides instead of blocking (post 0.2)
add two param VisColors to use it as a gradient for the palette.
build tables in strides instead of blocking (post 0.2)
could someone from france PLEASE translate
the plugin to english? (post 0.1)
cthugha: (suggestion for someone with too much time)
leaking quite seriously
use extern "C" stuff in the headers
does not compile on alpha (because of mmx, sse, should use a C fallback)
make an libvisual gfx effect that enables libvisual
plugins to draw within goom
port the port that is done by the mythtv people (post 0.1).
use the libvisual palette blender
use the libvisual timer module
fix the 24 bit mode again.
a gdkpixbuf image loader:
implement depth requester, (needs bits in libvisual as well).
implement support for alpha transparency.
implement support for animated image files.
auto sched plugin:
have a auto schedded bin running in an actor so that
gstreamer, xine and such can easily use
the auto scheduler.
Fix leaks in the dtors.
Make the image not a copy, but do a direct pointer
Unmirror the image in the code itself
bin in actor:
have a plugin that embeds a complete bin. that is configurable through params.
More: (post 0.2)
When api is stable, start porting over some more xmms plugins.
morph: (lots of these effects can be taken from the demo world, this should turn
visuals into scenes rather than standalone plugins, o boy!)
mmx sse optimize.
Add a soft edges variant.
make 16, 24, 32 bits support.
blockwise flash in, like in the ODD demo:
negative flash:
that uses the audio as example.
burn in:
JC says he knew what he was talking about
so JC make this !! :)
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