<s>
Icecast	B-Application
is	O
a	O
streaming	O
media	O
project	O
released	O
as	O
free	B-Application
software	I-Application
maintained	O
by	O
the	O
Xiph.Org	B-Application
Foundation	I-Application
.	O
</s>
<s>
It	O
also	O
refers	O
specifically	O
to	O
the	O
server	B-Application
program	O
which	O
is	O
part	O
of	O
the	O
project	O
.	O
</s>
<s>
Icecast	B-Application
was	O
created	O
in	O
December	O
1998/January	O
1999	O
by	O
Jack	O
Moffitt	O
and	O
Barath	O
Raghavan	O
to	O
provide	O
an	O
open-source	B-Application
audio	O
streaming	O
server	B-Application
that	O
anyone	O
could	O
modify	O
,	O
use	O
,	O
and	O
tinker	O
with	O
.	O
</s>
<s>
Version	O
2	O
,	O
a	O
ground-up	O
rewrite	O
aimed	O
at	O
multi-format	O
support	O
(	O
initially	O
targeting	O
Ogg	B-Algorithm
Vorbis	I-Algorithm
)	O
and	O
scalability	O
,	O
was	O
started	O
in	O
2001	O
and	O
released	O
in	O
January	O
2004	O
.	O
</s>
<s>
Icecast	B-Application
was	O
originally	O
developed	O
by	O
Moffitt	O
in	O
1998	O
for	O
SMU	O
's	O
radio	O
station	O
.	O
</s>
<s>
Moffitt	O
created	O
Icecast	B-Application
,	O
allowing	O
the	O
station	O
to	O
easily	O
reach	O
everwhere	O
on	O
campus	O
without	O
the	O
necessity	O
of	O
FCC	O
licensing	O
or	O
a	O
transmitter	O
upgrade	O
.	O
</s>
<s>
Initially	O
developed	O
to	O
support	O
mp3	B-Application
's	O
,	O
Vorbis	B-Algorithm
support	O
was	O
added	O
shortly	O
after	O
.	O
</s>
<s>
The	O
Icecast	B-Application
server	B-Application
is	O
capable	O
of	O
streaming	O
audio	O
content	O
as	O
Opus	B-Algorithm
or	O
Vorbis	B-Algorithm
over	O
standard	O
HTTP	B-Protocol
,	O
video	O
as	O
WebM	B-Application
or	O
Theora	B-Algorithm
over	O
HTTP	B-Protocol
,	O
and	O
MP3	B-Application
,	O
AAC	B-Application
,	O
and	O
NSV	O
over	O
the	O
SHOUTcast	B-Application
protocol	O
.	O
</s>
<s>
Theora	B-Algorithm
,	O
AAC	B-Application
,	O
and	O
NSV	O
are	O
only	O
supported	O
in	O
version	O
2.2.0	O
and	O
newer	O
.	O
</s>
<s>
Icecast	B-Application
requires	O
external	O
programs	O
,	O
called	O
"	O
source	O
clients	O
"	O
,	O
to	O
originate	O
the	O
streams	O
,	O
and	O
the	O
Icecast	B-Application
project	O
includes	O
a	O
source	O
client	B-Protocol
program	I-Protocol
known	O
as	O
IceS	B-Application
.	O
</s>
<s>
The	O
source	O
runs	O
typically	O
in	O
the	O
place	O
where	O
the	O
audio	O
is	O
generated	O
(	O
e.g.	O
,	O
a	O
studio	O
)	O
and	O
the	O
Icecast	B-Application
server	B-Application
where	O
a	O
high-bandwidth	O
connection	O
is	O
available	O
(	O
e.g.	O
,	O
a	O
colocation	B-Application
centre	I-Application
)	O
.	O
</s>
<s>
Since	O
version	O
2.4.0	O
source	O
clients	O
can	O
use	O
plain	O
HTTP	B-Protocol
standard	O
PUT	O
requests	O
instead	O
of	O
the	O
custom	O
SOURCE	O
method	O
.	O
</s>
