<s>
OpenMAX	O
(	O
Open	O
Media	O
Acceleration	O
)	O
,	O
often	O
shortened	O
as	O
"	O
OMX	O
"	O
,	O
is	O
a	O
non-proprietary	O
and	O
royalty-free	O
cross-platform	B-Operating_System
set	O
of	O
C-language	B-Language
programming	B-Application
interfaces	I-Application
.	O
</s>
<s>
It	O
is	O
intended	O
for	O
low	O
power	O
and	O
embedded	B-Architecture
system	I-Architecture
devices	O
(	O
including	O
smartphones	B-Application
,	O
game	O
consoles	O
,	O
digital	B-Application
media	I-Application
players	I-Application
,	O
and	O
set-top	O
boxes	O
)	O
that	O
need	O
to	O
efficiently	O
process	O
large	O
amounts	O
of	O
multimedia	O
data	O
in	O
predictable	O
ways	O
,	O
such	O
as	O
video	B-Application
codecs	I-Application
,	O
graphics	O
libraries	O
,	O
and	O
other	O
functions	O
for	O
video	O
,	O
image	O
,	O
audio	O
,	O
voice	O
and	O
speech	O
.	O
</s>
<s>
OpenMAX	O
provides	O
three	O
layers	O
of	O
interfaces	B-Application
:	O
application	O
layer	O
(	O
AL	O
)	O
,	O
integration	O
layer	O
(	O
IL	O
)	O
and	O
development	O
layer	O
(	O
DL	O
)	O
.	O
</s>
<s>
OpenMAX	O
is	O
managed	O
by	O
the	O
non-profit	O
technology	O
consortium	B-Application
Khronos	B-Library
Group	I-Library
.	O
</s>
<s>
The	O
OpenMAX	O
Working	O
Group	O
was	O
initially	O
founded	O
by	O
members	O
ARM	O
,	O
Motorola	O
,	O
Samsung	B-Application
,	O
STMicroelectronics	O
,	O
and	O
Texas	O
Instruments	O
.	O
</s>
<s>
The	O
OpenMAX	O
specification	O
were	O
never	O
updated	O
to	O
support	O
recent	O
codecs	B-General_Concept
like	O
HEVC	O
or	O
VP9	O
,	O
making	O
Android	B-Application
the	O
de	O
facto	O
source	O
of	O
updates	O
to	O
the	O
OpenMAX	B-Application
IL	I-Application
standard	O
.	O
</s>
<s>
OpenMAX	O
AL	O
is	O
the	O
interface	O
between	O
multimedia	O
applications	O
,	O
such	O
as	O
a	O
media	O
player	O
,	O
and	O
the	O
platform	O
media	B-Library
framework	I-Library
.	O
</s>
<s>
It	O
allows	O
companies	O
that	O
develop	O
applications	O
to	O
easily	O
migrate	O
their	O
applications	O
to	O
different	O
platforms	O
(	O
customers	O
)	O
that	O
support	O
the	O
OpenMAX	O
AL	O
application	B-Application
programming	I-Application
interface	I-Application
(	O
API	B-Application
)	O
.	O
</s>
<s>
OpenMAX	B-Application
IL	I-Application
is	O
the	O
interface	O
between	O
media	B-Library
framework	I-Library
,	O
(	O
such	O
as	O
StageFright	B-Application
or	O
MediaCodec	O
API	B-Application
on	O
Android	B-Application
,	O
DirectShow	B-Library
on	O
Windows	O
,	O
FFmpeg	B-Library
or	O
GStreamer	B-Language
on	O
Linux	O
)	O
,	O
and	O
a	O
set	O
of	O
multimedia	O
components	O
(	O
such	O
as	O
an	O
audio	O
or	O
video	B-Application
codecs	I-Application
)	O
.	O
</s>
<s>
OpenMAX	O
DL	O
is	O
the	O
interface	O
between	O
physical	O
hardware	O
,	O
such	O
as	O
digital	B-Architecture
signal	I-Architecture
processor	I-Architecture
(	O
DSP	O
)	O
chips	O
,	O
CPUs	B-General_Concept
,	O
GPUs	B-Architecture
,	O
and	O
software	O
,	O
like	O
video	B-Application
codecs	I-Application
and	O
3D	O
engines	O
.	O
</s>
<s>
OpenMAX	O
AL	O
accommodates	O
common	O
multimedia	O
application	O
use	O
cases	O
by	O
standardizing	O
a	O
set	O
of	O
representative	O
objects	O
,	O
as	O
well	O
as	O
interfaces	B-Application
on	O
those	O
objects	O
,	O
to	O
control	O
and	O
configure	O
them	O
.	O
</s>
<s>
The	O
OpenMAX	O
AL	O
API	B-Application
is	O
divided	O
into	O
two	O
profiles	O
:	O
Media	O
Player	O
and	O
Media	O
Player/Recorder	O
.	O
</s>
<s>
It	O
is	O
an	O
application-level	O
,	O
C-language	B-Language
,	O
multimedia	O
API	B-Application
designed	O
for	O
resource-constrained	O
devices	O
.	O
</s>
<s>
The	O
OpenMAX	O
AL	O
API	B-Application
design	O
puts	O
particular	O
emphasis	O
on	O
ensuring	O
the	O
API	B-Application
is	O
suitable	O
for	O
mobile	B-Architecture
embedded	I-Architecture
devices	I-Architecture
-	O
including	O
basic	O
mobile	O
phones	O
,	O
smart	O
“	O
feature	O
”	O
phones	O
,	O
PDAs	O
and	O
mobile	O
digital	O
music	O
players	O
.	O
</s>
<s>
The	O
OpenMAX	O
AL	O
API	B-Application
design	O
devotes	O
particular	O
attention	O
to	O
application-developer	O
friendliness	O
.	O
</s>
<s>
Its	O
status	O
as	O
an	O
open	O
cross-platform	B-Operating_System
API	B-Application
enables	O
developers	O
to	O
port	O
the	O
same	O
source	O
across	O
multiple	O
devices	O
with	O
minimal	O
effort	O
.	O
</s>
<s>
A	O
digital	O
television	O
(	O
DTV	O
)	O
extension	O
specification	O
of	O
OpenMAX	O
AL	O
adds	O
standards-agnostic	O
mobile	O
TV	O
tuning	O
,	O
playback	O
,	O
recording	O
and	O
electronic	O
program	O
guide	O
functionality	O
to	O
OpenMAX	O
AL	O
Multimedia	O
API	B-Application
,	O
as	O
a	O
modular	O
royalty-free	O
,	O
cross-platform	B-Operating_System
C-language	B-Language
API	B-Application
for	O
high-performance	O
digital	O
TV-related	O
applications	O
on	O
mobile	O
and	O
embedded	B-Architecture
devices	I-Architecture
.	O
</s>
<s>
Android	B-Application
4.0	O
and	O
later	O
exposes	O
OpenMAX	O
AL	O
as	O
part	O
of	O
its	O
NDK	O
(	O
Native	O
Development	O
Kit	O
)	O
.	O
</s>
<s>
is	O
an	O
open	O
source	O
implementation	O
of	O
OpenMAX	O
AL	O
and	O
OpenMAX	B-Application
IL	I-Application
for	O
Linux	O
.	O
</s>
<s>
OpenSL	B-Library
ES	I-Library
(	O
Open	O
Sound	O
Library	O
for	O
Embedded	B-Architecture
Systems	I-Architecture
)	O
is	O
another	O
Khronos	B-Library
Group	I-Library
API	B-Application
that	O
also	O
provides	O
an	O
audio	O
library	O
for	O
the	O
same	O
target	O
market	O
as	O
OpenMAX	O
AL	O
,	O
while	O
OpenMAX	O
target	O
the	O
complete	O
multimedia	O
services	O
.	O
</s>
<s>
OpenSL	B-Library
ES	I-Library
and	O
OpenMAX	O
AL	O
audio	O
subset	O
share	O
the	O
same	O
common	O
architecture	O
and	O
have	O
a	O
few	O
common	O
features	O
:	O
</s>
<s>
The	O
OpenMAX	B-Application
IL	I-Application
API	B-Application
strives	O
to	O
give	O
media	O
components	O
portability	O
across	O
an	O
array	O
of	O
platforms	O
using	O
the	O
C-language	B-Language
.	O
</s>
<s>
In	O
the	O
OpenMAX	B-Application
IL	I-Application
,	O
components	O
represent	O
individual	O
blocks	O
of	O
functionality	O
.	O
</s>
<s>
Components	O
can	O
be	O
sources	O
,	O
sinks	O
,	O
codecs	B-General_Concept
,	O
filters	O
,	O
splitters	O
,	O
mixers	O
,	O
or	O
any	O
other	O
data	O
operator	O
.	O
</s>
<s>
Depending	O
on	O
the	O
implementation	O
,	O
a	O
component	O
could	O
possibly	O
represent	O
a	O
piece	O
of	O
hardware	O
,	O
a	O
software	B-General_Concept
codec	I-General_Concept
,	O
another	O
processor	O
,	O
or	O
a	O
combination	O
thereof	O
.	O
</s>
<s>
The	O
OpenMAX	B-Application
IL	I-Application
API	B-Application
allows	O
the	O
user	O
to	O
load	O
,	O
control	O
,	O
connect	O
,	O
and	O
unload	O
the	O
individual	O
components	O
.	O
</s>
<s>
This	O
flexible	O
core	O
architecture	O
allows	O
the	O
Integration	O
Layer	O
to	O
easily	O
implement	O
almost	O
any	O
media	O
use	O
case	O
and	O
mesh	O
with	O
existing	O
graph-based	O
media	B-Library
frameworks	I-Library
.	O
</s>
<s>
The	O
key	O
focus	O
of	O
the	O
OpenMAX	B-Application
IL	I-Application
API	B-Application
is	O
portability	O
of	O
media	O
components	O
.	O
</s>
<s>
The	O
OpenMAX	B-Application
IL	I-Application
API	B-Application
design	O
devotes	O
particular	O
attention	O
to	O
use	O
case	O
flexibility	O
and	O
optimized	O
data	O
transfers	O
between	O
components	O
.	O
</s>
<s>
The	O
OpenMAX	B-Application
IL	I-Application
API	B-Application
was	O
chosen	O
as	O
the	O
base	O
for	O
the	O
API	B-Application
to	O
integrate	O
Audio	O
and	O
Video	B-Application
codecs	I-Application
on	O
Android	B-Application
,	O
which	O
has	O
resulted	O
in	O
most	O
SoC	O
vendors	O
shipping	O
a	O
minimal	O
implementation	O
that	O
only	O
supports	O
the	O
subset	O
required	O
by	O
Android	B-Application
.	O
</s>
<s>
Applications	O
do	O
not	O
use	O
those	O
OpenMAX	B-Application
IL	I-Application
components	O
directly	O
,	O
but	O
only	O
through	O
the	O
Android	B-Application
MediaCodec	O
API	B-Application
.	O
</s>
<s>
Android	B-Application
's	O
subset	O
of	O
OpenMAX	B-Application
IL	I-Application
with	O
its	O
extensions	O
is	O
now	O
the	O
de	O
facto	O
standard	O
.	O
</s>
<s>
is	O
an	O
open	O
source	O
OpenMAX	B-Application
IL	I-Application
implementation	O
for	O
Linux	O
that	O
supports	O
version	O
1.2.0	O
.	O
</s>
<s>
is	O
an	O
open	O
source	O
OpenMAX	B-Application
IL	I-Application
implementation	O
for	O
Linux	O
maintained	O
by	O
STMicroelectronics	O
.	O
</s>
<s>
is	O
an	O
open	O
source	O
implementation	O
of	O
OpenMAX	O
AL	O
and	O
OpenMAX	B-Application
IL	I-Application
for	O
Linux	O
.	O
</s>
<s>
Mesa	B-Application
provides	O
hardware	O
accelerated	O
drivers	O
that	O
can	O
be	O
used	O
with	O
Bellagio	O
or	O
Tizonia	O
.	O
</s>
<s>
The	O
OpenMAX	O
DL	O
API	B-Application
defines	O
a	O
set	O
of	O
low-level	O
multimedia	O
kernels	O
or	O
media	O
processing	O
building	O
blocks	O
.	O
</s>
<s>
The	O
building	O
blocks	O
might	O
be	O
used	O
to	O
accelerate	O
traditional	O
computational	O
hotspots	O
within	O
standardized	O
media	B-General_Concept
codecs	I-General_Concept
and	O
other	O
integrated	O
media	O
processing	O
engines	O
.	O
</s>
<s>
The	O
functional	O
scope	O
of	O
the	O
OpenMAX	O
DL	O
interface	O
spans	O
several	O
domains	O
including	O
signal	O
processing	O
and	O
image	B-Algorithm
processing	I-Algorithm
,	O
audio	B-Algorithm
coding	I-Algorithm
,	O
image	B-General_Concept
coding	I-General_Concept
,	O
and	O
video	B-Application
coding	I-Application
.	O
</s>
<s>
Optimized	O
implementations	O
for	O
NEON	O
(	O
for	O
Cortex	B-Application
A8	I-Application
cores	O
)	O
and	O
SIMD	O
(	O
for	O
ARM11	O
cores	O
)	O
,	O
as	O
well	O
as	O
an	O
ANSI	B-Language
C	I-Language
reference	O
implementation	O
,	O
were	O
previously	O
available	O
from	O
ARM	O
for	O
registered	O
users	O
.	O
</s>
<s>
The	O
OpenMAX	O
API	B-Application
is	O
supported	O
by	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
console	O
.	O
</s>
<s>
The	O
OpenMAX	O
working	O
group	O
was	O
founded	O
alongside	O
sister	O
project	O
OpenVG	B-Library
on	O
July	O
6	O
,	O
2004	O
.	O
</s>
<s>
Promoting	O
members	O
in	O
2008	O
were	O
AMD	O
,	O
Apple	O
,	O
ARM	O
,	O
Creative	O
,	O
Dell	O
Inc	O
,	O
Ericsson	O
,	O
Freescale	O
,	O
Imagination	O
Technologies	O
Group	O
plc	O
,	O
Intel	O
,	O
IBM	O
,	O
Motorola	O
,	O
Nokia	O
,	O
Nvidia	O
Corporation	O
,	O
Samsung	B-Application
Electronics	O
Co	O
.	O
Ltd	O
,	O
SK	O
Telecom	O
,	O
Sony	O
Computer	O
Entertainment	O
Inc	O
and	O
Texas	O
Instruments	O
.	O
</s>
