<s>
MPEG-4	B-Algorithm
is	O
a	O
group	O
of	O
international	O
standards	O
for	O
the	O
compression	O
of	O
digital	O
audio	B-Algorithm
and	O
visual	B-Application
data	O
,	O
multimedia	O
systems	O
,	O
and	O
file	O
storage	O
formats	O
.	O
</s>
<s>
It	O
was	O
originally	O
introduced	O
in	O
late	O
1998	O
as	O
a	O
group	O
of	O
audio	B-Algorithm
and	O
video	B-Algorithm
coding	I-Algorithm
formats	I-Algorithm
and	O
related	O
technology	O
agreed	O
upon	O
by	O
the	O
ISO/IEC	O
Moving	O
Picture	O
Experts	O
Group	O
(	O
MPEG	O
)	O
(	O
ISO/IEC	O
JTC	O
1/SC29/WG11	O
)	O
under	O
the	O
formal	O
standard	O
ISO/IEC	B-Algorithm
14496	I-Algorithm
–	O
Coding	O
of	O
audio-visual	O
objects	O
.	O
</s>
<s>
Uses	O
of	O
MPEG-4	B-Algorithm
include	O
compression	O
of	O
audiovisual	O
data	O
for	O
Internet	O
video	O
and	O
CD	O
distribution	O
,	O
voice	O
(	O
telephone	O
,	O
videophone	B-Application
)	O
and	O
broadcast	B-Operating_System
television	O
applications	O
.	O
</s>
<s>
The	O
MPEG-4	B-Algorithm
standard	O
was	O
developed	O
by	O
a	O
group	O
led	O
by	O
Touradj	O
Ebrahimi	O
(	O
later	O
the	O
JPEG	O
president	O
)	O
and	O
Fernando	O
Pereira	O
.	O
</s>
<s>
MPEG-4	B-Algorithm
absorbs	O
many	O
of	O
the	O
features	O
of	O
MPEG-1	B-Algorithm
and	O
MPEG-2	B-Algorithm
and	O
other	O
related	O
standards	O
,	O
adding	O
new	O
features	O
such	O
as	O
(	O
extended	O
)	O
VRML	B-Application
support	O
for	O
3D	O
rendering	O
,	O
object-oriented	O
composite	O
files	O
(	O
including	O
audio	B-Algorithm
,	O
video	O
and	O
VRML	B-Application
objects	O
)	O
,	O
support	O
for	O
externally	O
specified	O
Digital	O
Rights	O
Management	O
and	O
various	O
types	O
of	O
interactivity	O
.	O
</s>
<s>
AAC	O
(	O
Advanced	B-Application
Audio	I-Application
Coding	I-Application
)	O
was	O
standardized	O
as	O
an	O
adjunct	O
to	O
MPEG-2	B-Algorithm
(	O
as	O
Part	O
1	O
)	O
before	O
MPEG-4	B-Algorithm
was	O
issued	O
.	O
</s>
<s>
MPEG-4	B-Algorithm
is	O
still	O
an	O
evolving	O
standard	O
and	O
is	O
divided	O
into	O
a	O
number	O
of	O
parts	O
.	O
</s>
<s>
Companies	O
promoting	O
MPEG-4	B-Algorithm
compatibility	O
do	O
not	O
always	O
clearly	O
state	O
which	O
"	O
part	O
"	O
level	O
compatibility	O
they	O
are	O
referring	O
to	O
.	O
</s>
<s>
The	O
key	O
parts	O
to	O
be	O
aware	O
of	O
are	O
MPEG-4	B-Application
Part	I-Application
2	I-Application
(	O
including	O
Advanced	O
Simple	O
Profile	O
,	O
used	O
by	O
codecs	O
such	O
as	O
DivX	B-Application
,	O
Xvid	B-Algorithm
,	O
Nero	B-Algorithm
Digital	I-Algorithm
and	O
3ivx	B-Algorithm
and	O
by	O
QuickTime	B-Application
6	I-Application
)	O
and	O
MPEG-4	B-Application
part	I-Application
10	I-Application
(	O
MPEG-4	O
AVC/H.264	O
or	O
Advanced	B-Application
Video	I-Application
Coding	I-Application
,	O
used	O
by	O
the	O
x264	B-Language
encoder	O
,	O
Nero	B-Algorithm
Digital	I-Algorithm
AVC	O
,	O
QuickTime	B-Application
7	I-Application
,	O
and	O
high-definition	O
video	O
media	O
like	O
Blu-ray	O
Disc	O
)	O
.	O
</s>
<s>
Most	O
of	O
the	O
features	O
included	O
in	O
MPEG-4	B-Algorithm
are	O
left	O
to	O
individual	O
developers	O
to	O
decide	O
whether	O
or	O
not	O
to	O
implement	O
.	O
</s>
<s>
This	O
means	O
that	O
there	O
are	O
probably	O
no	O
complete	O
implementations	O
of	O
the	O
entire	O
MPEG-4	B-Algorithm
set	O
of	O
standards	O
.	O
</s>
<s>
Initially	O
,	O
MPEG-4	B-Algorithm
was	O
aimed	O
primarily	O
at	O
low-bit-rate	O
video	O
communications	O
;	O
however	O
,	O
its	O
scope	O
as	O
a	O
multimedia	O
coding	O
standard	O
was	O
later	O
expanded	O
.	O
</s>
<s>
MPEG-4	B-Algorithm
is	O
efficient	O
across	O
a	O
variety	O
of	O
bit	O
rates	O
ranging	O
from	O
a	O
few	O
kilobits	O
per	O
second	O
to	O
tens	O
of	O
megabits	O
per	O
second	O
.	O
</s>
<s>
MPEG-4	B-Algorithm
provides	O
the	O
following	O
functions	O
:	O
</s>
<s>
MPEG-4	B-Algorithm
provides	O
a	O
series	O
of	O
technologies	O
for	O
developers	O
,	O
for	O
various	O
service-providers	O
and	O
for	O
end	O
users	O
:	O
</s>
<s>
MPEG-4	B-Algorithm
enables	O
different	O
software	O
and	O
hardware	O
developers	O
to	O
create	O
multimedia	O
objects	O
possessing	O
better	O
abilities	O
of	O
adaptability	O
and	O
flexibility	O
to	O
improve	O
the	O
quality	O
of	O
such	O
services	O
and	O
technologies	O
as	O
digital	O
television	O
,	O
animation	O
graphics	O
,	O
the	O
World	O
Wide	O
Web	O
and	O
their	O
extensions	O
.	O
</s>
<s>
Data	O
network	O
providers	O
can	O
use	O
MPEG-4	B-Algorithm
for	O
data	O
transparency	O
.	O
</s>
<s>
With	O
the	O
help	O
of	O
standard	O
procedures	O
,	O
MPEG-4	B-Algorithm
data	O
can	O
be	O
interpreted	O
and	O
transformed	O
into	O
other	O
signal	O
types	O
compatible	O
with	O
any	O
available	O
network	O
.	O
</s>
<s>
The	O
MPEG-4	B-Algorithm
format	O
provides	O
end	O
users	O
with	O
a	O
wide	O
range	O
of	O
interaction	O
with	O
various	O
animated	O
objects	O
.	O
</s>
<s>
The	O
MPEG-4	B-Algorithm
format	O
can	O
perform	O
various	O
functions	O
,	O
among	O
which	O
might	O
be	O
the	O
following	O
:	O
</s>
<s>
Multiplexes	B-Architecture
and	O
synchronizes	O
data	O
,	O
associated	O
with	O
media	O
objects	O
,	O
in	O
such	O
a	O
way	O
that	O
they	O
can	O
be	O
efficiently	O
transported	O
further	O
via	O
network	O
channels	O
.	O
</s>
<s>
Interaction	O
with	O
the	O
audio-visual	O
scene	O
,	O
which	O
is	O
formed	O
on	O
the	O
side	O
of	O
the	O
receiver	O
.	O
</s>
<s>
MPEG-4	B-Algorithm
provides	O
a	O
large	O
and	O
rich	O
set	O
of	O
tools	O
for	O
encoding	O
.	O
</s>
<s>
Subsets	O
of	O
the	O
MPEG-4	B-Algorithm
tool	O
sets	O
have	O
been	O
provided	O
for	O
use	O
in	O
specific	O
applications	O
.	O
</s>
<s>
A	O
codec	O
builder	O
to	O
implement	O
only	O
the	O
subset	O
of	O
the	O
standard	O
needed	O
,	O
while	O
maintaining	O
interworking	O
with	O
other	O
MPEG-4	B-Algorithm
devices	O
that	O
implement	O
the	O
same	O
combination	O
.	O
</s>
<s>
Checking	O
whether	O
MPEG-4	B-Algorithm
devices	O
comply	O
with	O
the	O
standard	O
,	O
referred	O
to	O
as	O
conformance	O
testing	O
.	O
</s>
<s>
MPEG-4	B-Algorithm
consists	O
of	O
several	O
standards	O
—	O
termed	O
"	O
parts	O
"	O
—	O
including	O
the	O
following	O
(	O
each	O
part	O
covers	O
a	O
certain	O
aspect	O
of	O
the	O
whole	O
specification	O
)	O
:	O
</s>
<s>
+	O
MPEG-4	B-Algorithm
parts	O
Part	O
Number	O
First	O
public	O
release	O
date	O
(	O
first	O
edition	O
)	O
Latest	O
public	O
release	O
date	O
(	O
last	O
edition	O
)	O
Latest	O
amendment	O
Title	O
Description	O
Part	O
1	O
ISO/IEC	B-Algorithm
14496-1	I-Algorithm
1999	O
2010	O
2014	O
Systems	O
Describes	O
synchronization	O
and	O
multiplexing	B-Architecture
of	O
video	O
and	O
audio	B-Algorithm
.	O
</s>
<s>
For	O
example	O
,	O
the	O
MPEG-4	B-Algorithm
file	O
format	O
version	O
1	O
(	O
obsoleted	O
by	O
version	O
2	O
defined	O
in	O
MPEG-4	B-Algorithm
Part	O
14	O
)	O
.	O
</s>
<s>
The	O
functionality	O
of	O
a	O
transport	O
protocol	O
stack	O
for	O
transmitting	O
and/or	O
storing	O
content	O
complying	O
with	O
ISO/IEC	B-Algorithm
14496	I-Algorithm
is	O
not	O
within	O
the	O
scope	O
of	O
14496-1	O
and	O
only	O
the	O
interface	O
to	O
this	O
layer	O
is	O
considered	O
(	O
DMIF	O
)	O
.	O
</s>
<s>
Information	O
about	O
transport	O
of	O
MPEG-4	B-Algorithm
content	O
is	O
defined	O
e.g.	O
</s>
<s>
in	O
MPEG-2	B-Algorithm
Transport	O
Stream	O
,	O
RTP	B-Protocol
Audio	I-Protocol
Video	I-Protocol
Profiles	I-Protocol
and	O
others	O
.	O
</s>
<s>
Part	B-Application
2	I-Application
ISO/IEC	B-Application
14496-2	I-Application
1999	O
2004	O
2009	O
Visual	B-Application
A	O
compression	O
format	O
for	O
visual	B-Application
data	O
(	O
video	O
,	O
still	O
textures	O
,	O
synthetic	O
images	O
,	O
etc	O
.	O
)	O
.	O
</s>
<s>
One	O
of	O
the	O
many	O
"	O
profiles	O
"	O
in	O
Part	B-Application
2	I-Application
is	O
the	O
Advanced	O
Simple	O
Profile	O
(	O
ASP	O
)	O
.	O
</s>
<s>
Part	B-Algorithm
3	I-Algorithm
ISO/IEC	B-Algorithm
14496-3	I-Algorithm
1999	O
2009	O
2017	O
Audio	B-Algorithm
A	O
set	O
of	O
compression	O
formats	O
for	O
perceptual	O
coding	O
of	O
audio	B-Algorithm
signals	O
,	O
including	O
some	O
variations	O
of	O
Advanced	B-Application
Audio	I-Application
Coding	I-Application
(	O
AAC	O
)	O
as	O
well	O
as	O
other	O
audio/speech	O
coding	O
formats	O
and	O
tools	O
(	O
such	O
as	O
Audio	B-Algorithm
Lossless	I-Algorithm
Coding	I-Algorithm
(	O
ALS	O
)	O
,	O
Scalable	O
Lossless	O
Coding	O
(	O
SLS	O
)	O
,	O
Structured	B-Application
Audio	I-Application
,	O
Text-To-Speech	B-Application
Interface	O
(	O
TTSI	O
)	O
,	O
HVXC	B-Algorithm
,	O
CELP	B-Algorithm
and	O
others	O
)	O
Part	O
4	O
ISO/IEC	B-Algorithm
14496-4	I-Algorithm
2000	O
2004	O
2016	O
Conformance	O
testing	O
Describes	O
procedures	O
for	O
testing	O
conformance	O
to	O
other	O
parts	O
of	O
the	O
standard	O
.	O
</s>
<s>
Part	O
5	O
ISO/IEC	B-Algorithm
14496-5	I-Algorithm
2000	O
2001	O
2017	O
Reference	O
software	O
Provides	O
reference	O
software	O
for	O
demonstrating	O
and	O
clarifying	O
the	O
other	O
parts	O
of	O
the	O
standard	O
.	O
</s>
<s>
Part	O
6	O
ISO/IEC	O
14496-6	O
1999	O
2000	O
Delivery	O
Multimedia	O
Integration	O
Framework	O
(	O
DMIF	O
)	O
Part	O
7	O
ISO/IEC	O
TR	O
14496-7	O
2002	O
2004	O
Optimized	O
reference	O
software	O
for	O
coding	O
of	O
audio-visual	O
objects	O
Provides	O
examples	O
of	O
how	O
to	O
make	O
improved	O
implementations	O
(	O
e.g.	O
,	O
in	O
relation	O
to	O
Part	O
5	O
)	O
.	O
</s>
<s>
Part	O
8	O
ISO/IEC	B-Algorithm
14496-8	I-Algorithm
2004	O
2004	O
Carriage	O
of	O
ISO/IEC	B-Algorithm
14496	I-Algorithm
contents	O
over	O
IP	B-Protocol
networks	I-Protocol
Specifies	O
a	O
method	O
to	O
carry	O
MPEG-4	B-Algorithm
content	O
on	O
IP	B-Protocol
networks	I-Protocol
.	O
</s>
<s>
It	O
also	O
includes	O
guidelines	O
to	O
design	O
RTP	B-Protocol
payload	I-Protocol
formats	I-Protocol
,	O
usage	O
rules	O
of	O
SDP	B-Language
to	O
transport	O
ISO/IEC	O
14496-1-related	O
information	O
,	O
MIME	B-Protocol
type	O
definitions	O
,	O
analysis	O
on	O
RTP	B-Protocol
security	O
and	O
multicasting	O
.	O
</s>
<s>
Part	B-Application
10	I-Application
ISO/IEC	B-Application
14496-10	I-Application
2003	O
2014	O
2016	O
Advanced	B-Application
Video	I-Application
Coding	I-Application
(	O
AVC	O
)	O
A	O
compression	O
format	O
for	O
video	O
signals	O
which	O
is	O
technically	O
identical	O
to	O
the	O
ITU-T	B-Application
H.264	I-Application
standard	O
.	O
</s>
<s>
MPEG-4	B-Algorithm
Part	O
11	O
revised	O
MPEG-4	B-Algorithm
Part	I-Algorithm
1	I-Algorithm
–	O
ISO/IEC	O
14496-1:2001	O
and	O
two	O
amendments	O
to	O
MPEG-4	B-Algorithm
Part	I-Algorithm
1	I-Algorithm
.	O
</s>
<s>
It	O
describes	O
a	O
system	O
level	O
description	O
of	O
an	O
application	O
engine	O
(	O
delivery	O
,	O
lifecycle	O
,	O
format	O
and	O
behaviour	O
of	O
downloadable	O
Java	B-Language
byte	O
code	O
applications	O
)	O
and	O
the	O
Binary	O
Format	O
for	O
Scene	O
(	O
BIFS	O
)	O
and	O
the	O
Extensible	O
MPEG-4	B-Algorithm
Textual	O
(	O
XMT	O
)	O
format	O
–	O
a	O
textual	O
representation	O
of	O
the	O
MPEG-4	B-Algorithm
multimedia	O
content	O
using	O
XML	B-Protocol
,	O
etc	O
.	O
</s>
<s>
MPEG-J	O
was	O
defined	O
in	O
MPEG-4	B-Algorithm
Part	I-Algorithm
21	I-Algorithm
)	O
Part	O
12	O
ISO/IEC	O
14496-12	O
2004	O
2015	O
2017	O
ISO	O
base	O
media	O
file	O
format	O
A	O
file	O
format	O
for	O
storing	O
time-based	O
media	O
content	O
.	O
</s>
<s>
3GP	O
,	O
Motion	O
JPEG	O
2000	O
,	O
MPEG-4	B-Algorithm
Part	O
14	O
)	O
.	O
</s>
<s>
Part	O
13	O
ISO/IEC	B-Algorithm
14496-13	I-Algorithm
2004	O
2004	O
Intellectual	O
Property	O
Management	O
and	O
Protection	O
(	O
IPMP	O
)	O
Extensions	O
MPEG-4	B-Algorithm
Part	I-Algorithm
13	I-Algorithm
revised	O
an	O
amendment	O
to	O
MPEG-4	B-Algorithm
Part	I-Algorithm
1	I-Algorithm
–	O
ISO/IEC	O
14496-1:2001/Amd	O
3:2004	O
.	O
</s>
<s>
Part	O
14	O
ISO/IEC	O
14496-14	O
2003	O
2003	O
2010	O
MP4	O
file	O
format	O
It	O
is	O
also	O
known	O
as	O
"	O
MPEG-4	B-Algorithm
file	O
format	O
version	O
2	O
"	O
.	O
</s>
<s>
The	O
designated	O
container	O
file	O
format	O
for	O
MPEG-4	B-Algorithm
content	O
,	O
which	O
is	O
based	O
on	O
Part	O
12	O
.	O
</s>
<s>
It	O
revises	O
and	O
completely	O
replaces	O
Clause	O
13	O
of	O
ISO/IEC	B-Algorithm
14496-1	I-Algorithm
(	O
MPEG-4	B-Algorithm
Part	I-Algorithm
1	I-Algorithm
:	O
Systems	O
)	O
,	O
in	O
which	O
the	O
MPEG-4	B-Algorithm
file	O
format	O
was	O
previously	O
specified	O
.	O
</s>
<s>
Part	O
15	O
ISO/IEC	B-Algorithm
14496-15	I-Algorithm
2004	O
2017	O
2020	O
Part	O
15	O
:	O
Carriage	O
of	O
network	O
abstraction	O
layer	O
(	O
NAL	O
)	O
unit	O
structured	O
video	O
in	O
the	O
ISO	O
base	O
media	O
file	O
format	O
For	O
storage	O
of	O
Part	B-Application
10	I-Application
video	O
.	O
</s>
<s>
Part	O
16	O
ISO/IEC	B-Algorithm
14496-16	I-Algorithm
2004	O
2011	O
2016	O
Animation	O
Framework	O
eXtension	O
(	O
AFX	O
)	O
It	O
specifies	O
MPEG-4	B-Algorithm
Animation	O
Framework	O
eXtension	O
(	O
AFX	O
)	O
model	O
for	O
representing	O
3D	O
Graphics	O
content	O
.	O
</s>
<s>
MPEG-4	B-Algorithm
is	O
extended	O
with	O
higher-level	O
synthetic	O
objects	O
for	O
specifying	O
geometry	O
,	O
texture	O
,	O
animation	O
and	O
dedicated	O
compression	O
algorithms	O
.	O
</s>
<s>
Part	O
17	O
ISO/IEC	O
14496-17	O
2006	O
2006	O
Streaming	O
text	O
format	O
Timed	O
Text	O
subtitle	O
format	O
Part	O
18	O
ISO/IEC	B-Algorithm
14496-18	I-Algorithm
2004	O
2004	O
2014	O
Font	O
compression	O
and	O
streaming	O
For	O
Open	O
Font	O
Format	O
defined	O
in	O
Part	O
22	O
.	O
</s>
<s>
Part	O
19	O
ISO/IEC	B-Algorithm
14496-19	I-Algorithm
2004	O
2004	O
Synthesized	O
texture	O
stream	O
Synthesized	O
texture	O
streams	O
are	O
used	O
for	O
creation	O
of	O
very	O
low	O
bitrate	O
synthetic	O
video	O
clips	O
.	O
</s>
<s>
Part	O
20	O
ISO/IEC	O
14496-20	O
2006	O
2008	O
2010	O
Lightweight	O
Application	O
Scene	O
Representation	O
(	O
LASeR	O
)	O
and	O
Simple	O
Aggregation	O
Format	O
(	O
SAF	O
)	O
LASeR	O
requirements	O
(	O
compression	O
efficiency	O
,	O
code	O
and	O
memory	O
footprint	O
)	O
are	O
fulfilled	O
by	O
building	O
upon	O
the	O
existing	O
the	O
Scalable	B-Application
Vector	I-Application
Graphics	I-Application
(	O
SVG	B-Application
)	O
format	O
defined	O
by	O
the	O
World	O
Wide	O
Web	O
Consortium	O
.	O
</s>
<s>
Part	O
21	O
ISO/IEC	B-Algorithm
14496-21	I-Algorithm
2006	O
2006	O
MPEG-J	O
Graphics	O
Framework	O
eXtensions	O
(	O
GFX	O
)	O
Describes	O
a	O
lightweight	O
programmatic	O
environment	O
for	O
advanced	O
interactive	O
multimedia	O
applications	O
–	O
a	O
framework	O
that	O
marries	O
a	O
subset	O
of	O
the	O
MPEG	O
standard	O
Java	B-Language
application	O
environment	O
(	O
MPEG-J	O
)	O
with	O
a	O
Java	B-Language
API	I-Language
.	O
</s>
<s>
Part	O
22	O
ISO/IEC	B-Algorithm
14496-22	I-Algorithm
2007	O
2015	O
2017	O
Open	O
Font	O
Format	O
OFFS	O
is	O
based	O
on	O
the	O
OpenType	O
version	O
1.4	O
font	O
format	O
specification	O
,	O
and	O
is	O
technically	O
equivalent	O
to	O
that	O
specification	O
.	O
</s>
<s>
Reached	O
"	O
CD	O
"	O
stage	O
in	O
July	O
2005	O
,	O
published	O
as	O
ISO	O
standard	O
in	O
2007	O
Part	O
23	O
ISO/IEC	B-Algorithm
14496-23	I-Algorithm
2008	O
2008	O
Symbolic	O
Music	O
Representation	O
(	O
SMR	O
)	O
Reached	O
"	O
FCD	O
"	O
stage	O
in	O
October	O
2006	O
,	O
published	O
as	O
ISO	O
standard	O
in	O
2008-01-28	O
Part	O
24	O
ISO/IEC	O
TR	O
14496-24	O
2008	O
2008	O
Audio	B-Algorithm
and	O
systems	O
interaction	O
Describes	O
the	O
desired	O
joint	O
behavior	O
of	O
MPEG-4	B-Algorithm
File	O
Format	O
and	O
MPEG-4	B-Algorithm
Audio	I-Algorithm
.	O
</s>
<s>
Part	O
25	O
ISO/IEC	B-Algorithm
14496-25	I-Algorithm
2009	O
2011	O
3D	O
Graphics	O
Compression	O
Model	O
Defines	O
a	O
model	O
for	O
connecting	O
3D	O
Graphics	O
Compression	O
tools	O
defined	O
in	O
MPEG-4	B-Algorithm
standards	O
to	O
graphics	O
primitives	O
defined	O
in	O
any	O
other	O
standard	O
or	O
specification	O
.	O
</s>
<s>
Part	O
26	O
ISO/IEC	B-Algorithm
14496-26	I-Algorithm
2010	O
2010	O
2016	O
Audio	B-Algorithm
Conformance	O
Part	O
27	O
ISO/IEC	B-Algorithm
14496-27	I-Algorithm
2009	O
2009	O
2015	O
3D	O
Graphics	O
conformance	O
3D	O
Graphics	O
Conformance	O
summarizes	O
the	O
requirements	O
,	O
cross	O
references	O
them	O
to	O
characteristics	O
,	O
and	O
defines	O
how	O
conformance	O
with	O
them	O
can	O
be	O
tested	O
.	O
</s>
<s>
Part	O
28	O
ISO/IEC	B-Algorithm
14496-28	I-Algorithm
2012	O
2012	O
Composite	O
font	O
representation	O
Part	O
29	O
ISO/IEC	O
14496-29	O
2014	O
2015	O
Web	O
video	B-Algorithm
coding	I-Algorithm
Text	O
of	O
Part	O
29	O
is	O
derived	O
from	O
Part	B-Application
10	I-Application
-	O
ISO/IEC	B-Application
14496-10	I-Application
.	O
</s>
<s>
Web	O
video	B-Algorithm
coding	I-Algorithm
is	O
a	O
technology	O
that	O
is	O
compatible	O
with	O
the	O
Constrained	O
Baseline	O
Profile	O
of	O
ISO/IEC	B-Application
14496-10	I-Application
(	O
the	O
subset	O
that	O
is	O
specified	O
in	O
Annex	O
A	O
for	O
Constrained	O
Baseline	O
is	O
a	O
normative	O
specification	O
,	O
while	O
all	O
remaining	O
parts	O
are	O
informative	O
)	O
.	O
</s>
<s>
Part	O
30	O
ISO/IEC	O
14496-30	O
2014	O
2014	O
Timed	O
text	O
and	O
other	O
visual	B-Application
overlays	O
in	O
ISO	O
base	O
media	O
file	O
format	O
It	O
describes	O
the	O
carriage	O
of	O
some	O
forms	O
of	O
timed	O
text	O
and	O
subtitle	O
streams	O
in	O
files	O
based	O
on	O
ISO/IEC	O
14496-12	O
-	O
W3C	O
Timed	O
Text	O
Markup	O
Language	O
1.0	O
,	O
W3C	O
WebVTT	O
(	O
Web	O
Video	O
Text	O
Tracks	O
)	O
.	O
</s>
<s>
MPEG-1	B-Algorithm
,	O
MPEG-2	B-Algorithm
,	O
MPEG-7	O
and	O
MPEG-21	O
are	O
other	O
suites	O
of	O
MPEG	O
standards	O
.	O
</s>
<s>
The	O
low	O
profile	O
levels	O
are	O
part	O
of	O
the	O
MPEG-4	B-Algorithm
video	O
encoding/decoding	O
constraints	O
and	O
are	O
compatible	O
with	O
the	O
older	O
ITU	O
H.261	O
standard	O
,	O
also	O
compatible	O
with	O
former	O
analog	O
TV	O
standards	O
for	O
broadcast	B-Operating_System
and	O
records	O
(	O
such	O
as	O
NTSC	O
or	O
PAL	O
video	O
)	O
.	O
</s>
<s>
More	O
advanced	O
profiles	O
for	O
HD	O
media	O
have	O
been	O
defined	O
later	O
in	O
the	O
AVC	O
profile	O
,	O
which	O
is	O
functionally	O
identical	O
to	O
the	O
ITU	O
H.264	B-Application
standard	O
but	O
are	O
now	O
also	O
integrated	O
in	O
MPEG-4	B-Application
Part	I-Application
10	I-Application
(	O
see	O
H.264/MPEG	B-Application
-4	I-Application
AVC	I-Application
for	O
the	O
list	O
of	O
defined	O
levels	O
in	O
this	O
AVC	O
profile	O
)	O
.	O
</s>
<s>
MPEG-4	B-Algorithm
contains	O
patented	O
technologies	O
,	O
the	O
use	O
of	O
which	O
requires	O
licensing	O
in	O
countries	O
that	O
acknowledge	O
software	O
algorithm	O
patents	O
.	O
</s>
<s>
Over	O
two	O
dozen	O
companies	O
claim	O
to	O
have	O
patents	O
covering	O
MPEG-4	B-Algorithm
.	O
</s>
<s>
MPEG	O
LA	O
licenses	O
patents	O
required	O
for	O
MPEG-4	B-Application
Part	I-Application
2	I-Application
Visual	B-Application
from	O
a	O
wide	O
range	O
of	O
companies	O
(	O
audio	B-Algorithm
is	O
licensed	O
separately	O
)	O
and	O
lists	O
all	O
of	O
its	O
licensors	O
and	O
licensees	O
on	O
the	O
site	O
.	O
</s>
<s>
New	O
licenses	O
for	O
MPEG-4	B-Algorithm
System	O
patents	O
are	O
under	O
development	O
and	O
no	O
new	O
licenses	O
are	O
being	O
offered	O
while	O
holders	O
of	O
its	O
old	O
MPEG-4	B-Algorithm
Systems	O
license	O
are	O
still	O
covered	O
under	O
the	O
terms	O
of	O
that	O
license	O
for	O
the	O
patents	O
listed	O
(	O
)	O
.	O
</s>
<s>
The	O
majority	O
of	O
patents	O
used	O
for	O
the	O
MPEG-4	B-Application
Visual	I-Application
format	O
are	O
held	O
by	O
three	O
Japanese	O
companies	O
:	O
Mitsubishi	O
Electric	O
(	O
255	O
patents	O
)	O
,	O
Hitachi	O
(	O
206	O
patents	O
)	O
,	O
and	O
Panasonic	O
(	O
200	O
patents	O
)	O
.	O
</s>
