<s>
OpenMPT	B-Language
is	O
an	O
open-source	B-Application
audio	O
module	O
tracker	B-Application
for	O
Windows	B-Application
(	O
with	O
an	O
intended	O
Wine-functionality	O
for	O
UNIX	B-Application
and	O
Linux	B-Application
x86-systems	O
)	O
.	O
</s>
<s>
It	B-Application
was	O
previously	O
called	O
ModPlug	B-Language
Tracker	I-Language
,	O
and	O
was	O
first	O
released	O
by	O
Olivier	B-Language
Lapicque	I-Language
in	O
September	O
1997	O
.	O
</s>
<s>
Computer	O
Music	O
magazine	O
listed	O
OpenMPT	B-Language
among	O
the	O
top	O
five	O
free	O
music	B-Application
trackers	I-Application
in	O
2007	O
,	O
and	O
it	B-Application
is	O
one	O
of	O
the	O
most	O
widely	O
used	O
trackers	B-Application
.	O
</s>
<s>
OpenMPT	B-Language
was	O
initially	O
developed	O
as	O
a	O
browser	B-Protocol
plug-in	I-Protocol
called	O
MOD	O
Plugin	B-Application
,	O
which	O
enabled	O
users	O
to	O
play	O
music	O
and	O
other	O
sounds	O
encoded	O
in	O
module	O
files	O
.	O
</s>
<s>
ModPlug	B-Language
Tracker	I-Language
,	O
along	O
with	O
a	O
player	O
application	O
named	O
ModPlug	B-Application
Player	I-Application
,	O
evolved	O
from	O
this	O
plug-in	B-Application
.	O
</s>
<s>
In	O
December	O
1999	O
,	O
Olivier	B-Language
Lapicque	I-Language
sent	O
the	O
module-playing	O
parts	O
of	O
ModPlug	B-Language
Tracker	I-Language
's	O
source	O
code	O
to	O
Kenton	O
Varda	O
,	O
under	O
the	O
GPL-2.0-or-later	B-License
,	O
to	O
write	O
a	O
plugin	B-Application
for	O
XMMS	B-Language
based	O
on	O
the	O
code	O
.	O
</s>
<s>
In	O
2001	O
,	O
the	O
source	O
code	O
was	O
released	O
in	O
the	O
public	O
domain	O
,	O
and	O
the	O
mod-playing	O
code	O
was	O
split	O
off	O
into	O
a	O
separate	O
library	B-Library
,	O
libmodplug	O
,	O
maintained	O
as	O
part	O
of	O
the	O
ModPlug	O
XMMS	B-Language
Plugin	B-Application
project	O
.	O
</s>
<s>
This	O
project	O
lay	O
dormant	O
from	O
late	O
2003	O
until	O
early	O
2006	O
,	O
when	O
it	B-Application
was	O
picked	O
up	O
again	O
.	O
</s>
<s>
Today	O
,	O
libmodplug	O
is	O
included	O
in	O
many	O
Linux	B-Application
distributions	O
as	O
a	O
default	O
audio	O
plugin	B-Application
for	O
playing	O
module	O
files	O
and	O
is	O
a	O
part	O
of	O
the	O
popular	O
open	O
source	O
multimedia	O
framework	O
gstreamer	B-Language
.	O
</s>
<s>
Due	O
to	O
lack	O
of	O
time	O
,	O
Olivier	B-Language
Lapicque	I-Language
discontinued	O
development	O
of	O
ModPlug	B-Language
Tracker	I-Language
itself	O
,	O
and	O
in	O
January	O
2004	O
,	O
he	O
released	O
the	O
entire	O
source	O
code	O
under	O
an	O
open-source	B-Application
license	O
.	O
</s>
<s>
The	O
ModPlug	B-Application
Player	I-Application
source	O
code	O
is	O
still	O
closed	O
as	O
of	O
May	O
2020	O
.	O
</s>
<s>
Lapicque	O
's	O
MPT	O
code	O
was	O
taken	O
up	O
by	O
a	O
group	O
of	O
tracker	B-Application
musicians/programmers	O
and	O
is	O
now	O
known	O
as	O
OpenMPT	B-Language
.	O
</s>
<s>
Also	O
based	O
on	O
the	O
ModPlug	O
code	O
is	O
OpenMPT	B-Language
's	O
"	O
sister	O
project	O
"	O
Schism	O
Tracker	B-Application
which	O
contributed	O
several	O
backports	O
of	O
bugfixes	O
to	O
OpenMPT	B-Language
.	O
</s>
<s>
OpenMPT	B-Language
is	O
distributed	O
as	O
free	B-Application
software	I-Application
and	O
is	O
,	O
as	O
of	O
August	O
2022	O
,	O
under	O
active	O
development	O
.	O
</s>
<s>
Until	O
May	O
2009	O
(	O
v1.17.02.53	O
)	O
OpenMPT	B-Language
was	O
licensed	O
under	O
the	O
Copyleft	B-License
GPL-2.0-or-later	B-License
and	O
then	O
relicensed	O
under	O
the	O
terms	O
of	O
the	O
permissive	B-License
BSD-3-Clause	B-Operating_System
.	O
</s>
<s>
Since	O
OpenMPT	B-Language
1.23	O
(	O
March	O
2014	O
)	O
,	O
OpenMPT	B-Language
is	O
also	O
available	O
as	O
a	O
64-bit	O
application	O
.	O
</s>
<s>
This	O
allows	O
musicians	O
to	O
use	O
64-bit	O
VST	B-Application
plugins	I-Application
and	O
make	O
use	O
of	O
the	O
entire	O
physical	B-Architecture
memory	I-Architecture
on	O
64-bit	O
systems	O
.	O
</s>
<s>
For	O
this	O
purpose	O
,	O
OpenMPT	B-Language
provides	O
its	O
own	O
plugin	B-Application
bridge	O
,	O
which	O
can	O
be	O
used	O
to	O
run	O
plugins	B-Application
with	O
a	O
different	O
bitness	O
than	O
the	O
host	O
in	O
a	O
separate	O
process	O
,	O
or	O
to	O
run	O
plugin	B-Application
in	O
a	O
sandbox	O
and	O
prevent	O
them	O
from	O
crashing	O
the	O
host	O
application	O
.	O
</s>
<s>
OpenMPT	B-Language
's	O
main	O
distinguishing	O
feature	O
is	O
its	O
native	O
Windows	B-Application
user	B-Application
interface	I-Application
.	O
</s>
<s>
Most	O
trackers	B-Application
,	O
even	O
newer	O
ones	O
such	O
as	O
Renoise	B-Application
,	O
have	O
interfaces	O
modelled	O
after	O
the	O
older	O
DOS	B-Device
trackers	B-Application
such	O
as	O
FastTracker	O
II	O
.	O
</s>
<s>
It	B-Application
supports	O
samples	O
,	O
VST	B-Application
plugins	I-Application
and	O
OPL3	O
instruments	O
as	O
sound	O
sources	O
.	O
</s>
<s>
OpenMPT	B-Language
makes	O
use	O
of	O
features	O
common	O
to	O
Microsoft	B-Application
Windows	I-Application
programs	O
,	O
such	O
as	O
context	O
menus	O
for	O
effect	O
selection	O
,	O
"	O
tree	O
"	O
views	O
(	O
for	O
files	O
,	O
samples	O
,	O
and	O
patterns	O
)	O
,	O
drag	O
and	O
drop	O
functionality	O
throughout	O
,	O
and	O
the	O
native	O
look	B-Application
and	I-Application
feel	I-Application
of	O
the	O
Windows	B-Application
platform	O
.	O
</s>
<s>
It	B-Application
supports	O
both	O
loading	O
and	O
saving	O
of	O
IT	B-Application
(	O
Impulse	B-Application
Tracker	I-Application
)	O
,	O
XM	O
(	O
FastTracker	O
Extended	O
Module	O
)	O
,	O
MOD	O
(	O
Protracker	B-Device
and	O
similar	O
)	O
,	O
S3M	O
(	O
Scream	B-Application
Tracker	I-Application
3	I-Application
)	O
and	O
MPTM	O
(	O
its	O
own	O
file	O
format	O
)	O
files	O
,	O
imports	O
many	O
more	O
module	O
and	O
sample	O
file	O
formats	O
,	O
and	O
has	O
some	O
support	O
for	O
DLS	O
banks	O
and	O
SoundFonts	B-Application
.	O
</s>
<s>
OpenMPT	B-Language
was	O
also	O
one	O
of	O
the	O
first	O
trackers	B-Application
to	O
support	O
opening	O
and	O
editing	O
of	O
multiple	O
tracker	B-Application
modules	O
in	O
parallel	O
.	O
</s>
<s>
OpenMPT	B-Language
supports	O
up	O
to	O
127	O
tracks/channels	O
,	O
VST	B-Application
Plugins	I-Application
,	O
VST	B-Application
instruments	I-Application
and	O
has	O
ASIO	B-Library
support	O
.	O
</s>
<s>
Due	O
to	O
limitations	O
of	O
the	O
various	O
mod	O
file	O
formats	O
it	B-Application
is	O
able	O
to	O
save	O
,	O
a	O
new	O
module	O
format	O
called	O
MPTM	O
was	O
created	O
in	O
2007	O
.	O
</s>
<s>
OpenMPT	B-Language
introduced	O
some	O
non-standard	O
additions	O
to	O
the	O
older	O
file	O
formats	O
.	O
</s>
<s>
For	O
example	O
,	O
one	O
can	O
use	O
stereo	O
samples	O
or	O
add	O
VST	B-Application
plugins	I-Application
to	O
XM	O
and	O
IT	B-Application
modules	O
,	O
which	O
were	O
not	O
supported	O
in	O
the	O
original	O
trackers	B-Application
.	O
</s>
<s>
Many	O
of	O
these	O
features	O
have	O
gradually	O
been	O
removed	O
from	O
IT	B-Application
and	O
XM	O
files	O
and	O
made	O
available	O
only	O
in	O
MPTM	O
files	O
.	O
</s>
<s>
libopenmpt	O
is	O
a	O
cross-platform	O
module	O
playing	O
library	B-Library
based	O
on	O
the	O
OpenMPT	B-Language
code	O
with	O
interfaces	O
for	O
C	B-Language
,	O
C++	B-Language
and	O
other	O
programming	O
languages	O
.	O
</s>
<s>
To	O
ensure	O
that	O
the	O
code	O
bases	O
do	O
not	O
diverge	O
like	O
in	O
the	O
case	O
of	O
ModPlug	B-Language
Tracker	I-Language
and	O
libmodplug	O
,	O
libopenmpt	O
development	O
takes	O
place	O
in	O
the	O
same	O
code	B-General_Concept
repository	I-General_Concept
as	O
OpenMPT	B-Language
.	O
</s>
<s>
Official	O
input	B-Application
plug-ins	I-Application
for	O
popular	O
audio	O
players	O
(	O
XMPlay	O
,	O
Winamp	B-Application
and	O
foobar2000	B-Application
)	O
based	O
on	O
libopenmpt	O
are	O
also	O
available	O
from	O
the	O
website	O
.	O
</s>
<s>
FFmpeg	B-Library
also	O
offers	O
an	O
optional	O
module	O
decoder	O
based	O
on	O
libopenmpt	O
.	O
</s>
<s>
libopenmpt	O
can	O
also	O
serve	O
as	O
a	O
drop-in	O
replacement	O
for	O
libmodplug	O
and	O
thus	O
offer	O
up-to-date	O
module	O
playback	O
capabilities	O
for	O
software	O
that	O
relies	O
on	O
the	O
libmodplug	O
API	B-Application
.	O
</s>
<s>
Movie	O
and	O
video	O
game	O
music	O
composer	O
Raphaël	O
Gesqua	O
made	O
known	O
his	O
use	O
of	O
OpenMPT	B-Language
in	O
an	O
interview	O
.	O
</s>
<s>
Peter	O
Hajba	O
and	O
Alexander	O
Brandon	O
used	O
OpenMPT	B-Language
to	O
compose	O
the	O
soundtracks	O
for	O
Bejeweled	B-Operating_System
2	I-Operating_System
,	O
Bejeweled	B-Language
3	I-Language
and	O
other	O
PopCap	O
games	O
.	O
</s>
<s>
Electronic	O
rock	O
musician	O
Blue	O
Stahli	O
has	O
mentioned	O
that	O
he	O
used	O
ModPlug	B-Language
Tracker	I-Language
and	O
other	O
trackers	B-Application
in	O
the	O
past	O
.	O
</s>
