<s>
mpv	B-Language
is	O
free	B-License
and	I-License
open-source	I-License
media	O
player	O
software	O
based	O
on	O
MPlayer	B-Application
,	O
mplayer2	O
and	O
FFmpeg	B-Library
.	O
</s>
<s>
It	O
runs	O
on	O
several	O
operating	B-General_Concept
systems	I-General_Concept
,	O
including	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
(	O
Linux	B-Application
,	O
BSD-based	B-Operating_System
,	O
macOS	B-Application
)	O
and	O
Microsoft	B-Application
Windows	I-Application
,	O
along	O
with	O
having	O
an	O
Android	B-Application
port	O
called	O
mpv-android	O
.	O
</s>
<s>
It	O
is	O
cross-platform	B-Operating_System
,	O
running	O
on	O
ARM	B-Architecture
,	O
PowerPC	B-Architecture
,	O
x86/IA	O
-32	O
,	O
x86-64	B-Device
,	O
and	O
MIPS	B-Device
architecture	I-Device
.	O
</s>
<s>
mpv	B-Language
was	O
forked	B-Application
by	O
Vincent	O
Lang	O
,	O
also	O
known	O
as	O
wm4	O
,	O
in	O
2012	O
from	O
mplayer2	O
,	O
which	O
was	O
forked	B-Application
in	O
2010	O
from	O
MPlayer	B-Application
.	O
</s>
<s>
The	O
motive	O
for	O
the	O
fork	B-Application
was	O
to	O
encourage	O
developer	O
activity	O
by	O
removing	O
unmaintainable	O
code	O
and	O
dropping	O
support	O
for	O
very	O
old	O
systems	O
.	O
</s>
<s>
Since	O
June	O
2015	O
,	O
the	O
project	O
's	O
source	O
code	O
is	O
in	O
the	O
process	O
of	O
being	O
relicensed	O
from	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
version	O
2	O
(	O
GPLv2	O
)	O
or	O
later	O
to	O
GNU	B-Application
Lesser	I-Application
General	I-Application
Public	I-Application
License	I-Application
version	O
2.1	O
(	O
LGPLv2.1	B-Application
)	O
or	O
later	O
to	O
allow	O
using	O
mpv	B-Language
as	O
a	O
library	B-Library
in	O
more	O
applications	O
.	O
</s>
<s>
mpv	B-Language
has	O
had	O
several	O
notable	O
changes	O
since	O
it	O
was	O
forked	B-Application
from	O
MPlayer	B-Application
;	O
the	O
most	O
user-visible	O
being	O
the	O
addition	O
of	O
an	O
on-screen-controller	O
(	O
OSC	O
)	O
minimal	O
GUI	B-Application
integrated	O
with	O
mpv	B-Language
to	O
offer	O
basic	O
mouse-controllability	O
.	O
</s>
<s>
Video	O
websites	O
By	O
using	O
youtube-dl	B-Protocol
,	O
mpv	B-Language
natively	O
supports	O
playback	O
of	O
high-definition	O
video	O
(	O
HD	O
)	O
content	O
and	O
audio	O
on	O
YouTube	B-General_Concept
and	O
over	O
1000	O
other	O
supported	O
sites	O
.	O
</s>
<s>
This	O
allows	O
mpv	B-Language
to	O
replace	O
site-specific	O
video	O
players	O
based	O
on	O
Adobe	B-Operating_System
Flash	I-Operating_System
or	O
HTML5	B-Application
.	O
</s>
<s>
High	O
quality	O
video	O
output	O
mpv	B-Language
includes	O
a	O
customizable	O
video	O
output	O
driver	O
based	O
on	O
OpenGL	B-Application
as	O
well	O
as	O
the	O
Vulkan	B-Application
API	I-Application
,	O
which	O
supports	O
over	O
100	O
options	O
for	O
controlling	O
playback	O
quality	O
,	O
including	O
the	O
use	O
of	O
advanced	O
upscaling	O
filters	O
,	O
color	O
management	O
,	O
and	O
customizable	O
pixel	O
shaders	O
.	O
</s>
<s>
Audio	O
scaling	O
algorithmThe	O
player	O
is	O
equipped	O
with	O
a	O
scaletempo2	O
parameter	O
for	O
speed	O
changing	O
at	O
constant	O
pitch	O
,	O
for	O
which	O
it	O
uses	O
the	O
Waveform	O
Similarity	O
Overlap-and-add	O
(	O
WSOLA	O
)	O
algorithm	O
,	O
citing	O
more	O
smoothness	O
than	O
the	O
original	O
scaletempo	O
used	O
in	O
the	O
original	O
mplayer	B-Application
,	O
and	O
rubberband	O
.	O
</s>
<s>
Improved	O
client	O
API	O
Beyond	O
working	O
as	O
a	O
stand-alone	O
media	O
player	O
,	O
mpv	B-Language
is	O
designed	O
to	O
be	O
used	O
directly	O
by	O
other	O
applications	O
through	O
a	O
library	B-Library
interface	O
called	O
libmpv	O
.	O
</s>
<s>
This	O
required	O
making	O
all	O
mpv	B-Language
code	O
thread	B-Operating_System
safe	I-Operating_System
.	O
</s>
<s>
An	O
example	O
of	O
an	O
application	O
which	O
uses	O
libmpv	O
is	O
Plex	B-Application
.	O
</s>
<s>
This	O
form	O
of	O
player	O
control	O
,	O
along	O
with	O
a	O
JSON	B-General_Concept
IPC	I-General_Concept
mechanism	O
,	O
replaces	O
MPlayer	B-Application
's	O
"	O
slave	O
mode	O
"	O
.	O
</s>
<s>
Encoding	O
subsystem	O
mpv	B-Language
includes	O
a	O
new	O
video	O
encoding	O
mode	O
that	O
can	O
be	O
used	O
to	O
save	O
files	O
being	O
played	O
under	O
different	O
formats	O
.	O
</s>
<s>
This	O
allows	O
mpv	B-Language
to	O
work	O
as	O
a	O
transcoder	B-Algorithm
,	O
supporting	O
many	O
video	O
formats	O
.	O
</s>
<s>
This	O
feature	O
serves	O
as	O
a	O
direct	O
replacement	O
for	O
the	O
MEncoder	B-Language
component	O
of	O
MPlayer	B-Application
,	O
which	O
was	O
a	O
separate	O
program	O
rather	O
than	O
being	O
built	O
into	O
the	O
player	O
.	O
</s>
<s>
Lua	B-Language
scripting	I-Language
mpv	B-Language
's	O
behavior	O
and	O
functions	O
are	O
customizable	O
via	O
use	O
of	O
small	O
programs	O
written	O
in	O
the	O
Lua	B-Language
scripting	I-Language
language	I-Language
,	O
which	O
can	O
be	O
used	O
for	O
tasks	O
like	O
cropping	O
video	O
,	O
providing	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
or	O
automatically	O
adjusting	O
the	O
display	O
's	O
refresh	O
rate	O
.	O
</s>
<s>
Like	O
the	O
original	O
MPlayer	B-Application
,	O
mpv	B-Language
is	O
still	O
primarily	O
a	O
command-line	O
application	O
although	O
it	O
has	O
a	O
more	O
advanced	O
user	O
interface	O
than	O
MPlayer	B-Application
that	O
can	O
use	O
not	O
only	O
the	O
keyboard	O
but	O
also	O
the	O
mouse	O
for	O
mpv	B-Language
’s	O
on	O
screen	O
controller	O
(	O
OSC	O
)	O
.	O
</s>
<s>
However	O
,	O
this	O
OSC	O
is	O
still	O
not	O
a	O
full-featured	O
GUI	B-Application
,	O
and	O
there	O
are	O
a	O
number	O
of	O
front-ends	B-Architecture
available	O
,	O
which	O
use	O
GUI	B-Application
widgets	O
for	O
Qt	B-Language
,	O
GTK	B-Application
,	O
or	O
some	O
other	O
widget	B-Library
toolkit	I-Library
to	O
give	O
mpv	B-Language
a	O
more	O
complete	O
graphical	B-Application
interface	I-Application
.	O
</s>
<s>
The	O
following	O
are	O
all	O
open	B-License
source	I-License
front-ends	B-Architecture
of	O
mpv	B-Language
(	O
based	O
on	O
"	O
libmpv	O
"	O
or	O
the	O
command-line	O
version	O
of	O
mpv	B-Language
)	O
which	O
try	O
to	O
provide	O
more	O
features	O
and	O
more	O
user-friendly	B-General_Concept
interface	O
than	O
mpv	B-Language
,	O
and/or	O
better	O
integration	O
with	O
various	O
operating	B-General_Concept
systems	I-General_Concept
or	O
desktop	O
environments	O
.	O
</s>
<s>
Baka	O
MPlayer	B-Application
-	O
media	O
player	O
on	O
Windows	B-Application
,	O
Linux	B-Application
,	O
and	O
macOS	B-Application
although	O
macOS	B-Application
version	O
requires	O
the	O
user	O
to	O
compile	O
from	O
source	O
,	O
with	O
Qt5	B-Language
widgets	O
,	O
written	O
in	O
C++	B-Language
.	O
</s>
<s>
Its	O
development	O
stalled	O
in	O
January	O
2017	O
in	O
favor	O
of	O
another	O
mpv	B-Language
frontend	B-Architecture
by	O
the	O
same	O
developers	O
,	O
Mochi	O
Player	O
,	O
which	O
is	O
not	O
quite	O
finished	O
yet	O
.	O
</s>
<s>
Deepin	B-Application
Movie	O
-	O
for	O
Linux	B-Application
-	O
Written	O
by	O
and	O
default	O
video	O
player	O
for	O
the	O
Chinese	O
Deepin	B-Application
distro	O
and	O
desktop	O
environment	O
.	O
</s>
<s>
Celluloid	B-Language
(	O
formerly	O
GNOME	O
MPV	B-Language
)	O
-	O
for	O
Linux	B-Application
-	O
based	O
on	O
GTK	B-Application
Its	O
goal	O
is	O
to	O
be	O
a	O
simple	O
GTK-based	O
graphical	B-Application
interface	I-Application
for	O
mpv	B-Language
that	O
meets	O
the	O
GNOME	O
Human	O
Interface	O
Guidelines	O
.	O
</s>
<s>
IINA	B-Operating_System
-	O
macOS	B-Application
10.10	O
+	O
media	O
player	O
with	O
native	O
macOS	B-Application
Cocoa	B-Operating_System
interface	O
It	O
is	O
a	O
full-featured	O
native	O
macOS	B-Application
graphical	B-Application
interface	I-Application
for	O
mpv	B-Language
that	O
makes	O
use	O
of	O
new	O
features	O
in	O
the	O
most	O
recent	O
versions	O
of	O
macOS	B-Application
.	O
</s>
<s>
mpv	B-Language
config	O
file	O
and	O
script	O
system	O
are	O
also	O
integrated	O
.	O
</s>
<s>
Kawaii-Player	O
-	O
Linux	B-Application
and	O
Windows	B-Operating_System
10	I-Operating_System
-	O
media	O
player	O
and	O
media	B-Application
server	I-Application
with	O
Qt5	B-Language
widgets	O
.	O
</s>
<s>
Its	O
goal	O
is	O
to	O
not	O
just	O
be	O
a	O
multimedia	O
player	O
but	O
also	O
an	O
audio/video	O
library	B-Library
manager	O
and	O
portable	O
media	B-Application
server	I-Application
and	O
torrent	B-Protocol
streaming	O
server/player	O
.	O
</s>
<s>
Media	O
Player	O
Classic	O
Qute	O
Theater	O
(	O
mpc-qt	O
)	O
-	O
Linux	B-Application
and	O
Windows	B-Application
media	O
player	O
with	O
Qt5	B-Language
widgets	O
,	O
written	O
in	O
C++	B-Language
.	O
</s>
<s>
Its	O
goal	O
is	O
to	O
reproduce	O
and	O
ultimately	O
improve	O
upon	O
the	O
functionality	O
of	O
Media	O
Player	O
Classic	O
Home	O
Cinema	O
(	O
mpc-hc	O
)	O
,	O
a	O
Windows-only	O
program	O
,	O
as	O
a	O
cross-platform	B-Operating_System
mpv-based	O
multimedia	O
player	O
that	O
also	O
works	O
on	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
like	O
Linux	B-Application
.	O
</s>
<s>
mpv.net	O
-	O
Windows	B-Application
media	O
player	O
with	O
native	O
Windows	B-Application
interface	O
.	O
</s>
<s>
Its	O
goal	O
is	O
to	O
provide	O
the	O
standard	O
mpv	B-Language
OSC	O
interface	O
on	O
Windows	B-Application
along	O
with	O
a	O
customizable	O
Windows	B-Application
context	O
menu	O
,	O
C#	O
scripting	O
,	O
and	O
a	O
Managed	O
Extensibility	O
Framework	O
(	O
MEF	O
)	O
for	O
addons	O
.	O
</s>
<s>
OvoPlayer	O
-	O
Linux	B-Application
and	O
Windows	B-Application
music	O
player	O
that	O
supports	O
many	O
backends	B-Architecture
,	O
based	O
on	O
LCL	B-Language
widgetsets	B-Language
,	O
written	O
in	O
Pascal	B-Application
.	O
</s>
<s>
Its	O
goal	O
is	O
to	O
be	O
a	O
flexible	O
audio	O
player	O
that	O
supports	O
as	O
many	O
audio	O
engine	O
backends	B-Architecture
like	O
mpv	B-Language
as	O
possible	O
.	O
</s>
<s>
SMPlayer	B-Language
-	O
full-featured	O
,	O
cross-platform	B-Operating_System
and	O
skinable	O
with	O
advanced	O
features	O
and	O
YouTube	B-General_Concept
and	O
Chromecast	B-Device
support	O
that	O
can	O
use	O
MPlayer	B-Application
or	O
mpv	B-Language
.	O
</s>
<s>
Available	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
Linux	B-Application
and	O
macOS	B-Application
,	O
and	O
written	O
in	O
C++	B-Language
with	O
Qt4/Qt5	O
.	O
</s>
<s>
Sugoi	O
Player	O
-	O
media	O
player	O
on	O
Windows	B-Application
(	O
that	O
might	O
work	O
on	O
Linux	B-Application
and	O
macOS	B-Application
but	O
those	O
are	O
untested	O
)	O
forked	B-Application
from	O
Baka	O
MPlayer	B-Application
,	O
with	O
Qt5	B-Language
widgets	O
,	O
written	O
in	O
C++	B-Language
.	O
</s>
<s>
It	O
aims	O
to	O
improve	O
upon	O
and	O
continue	O
development	O
of	O
an	O
mpv	B-Language
frontend	B-Architecture
based	O
on	O
Baka	O
MPlayer	B-Application
,	O
since	O
Baka	O
MPlayer	B-Application
’s	O
development	O
stalled	O
in	O
January	O
2017	O
.	O
</s>
<s>
xt7-player-mpv	O
-	O
Linux	B-Application
media	O
player	O
with	O
Qt5	B-Language
or	I-Language
Qt4	I-Language
widgets	O
,	O
written	O
in	O
Gambas	B-Language
3	O
(	O
a	O
dialect	O
of	O
BASIC	O
)	O
.	O
</s>
<s>
Its	O
goal	O
is	O
usability	B-General_Concept
,	O
and	O
a	O
variety	O
of	O
extra	O
features	O
like	O
YouTube	B-General_Concept
and	O
SHOUTcast	B-Application
integration	O
,	O
media	O
tagging	O
,	O
library	B-Library
and	O
playlist	O
management	O
,	O
as	O
well	O
as	O
adding	O
more	O
features	O
beyond	O
that	O
.	O
</s>
