<s>
Vivo	B-Algorithm
Software	I-Algorithm
was	O
a	O
pioneer	O
internet	O
streaming	O
media	O
company	O
which	O
was	O
acquired	O
by	O
RealNetworks	O
in	O
March	O
1998	O
.	O
</s>
<s>
Vivo	B-Algorithm
Software	I-Algorithm
designed	O
the	O
Vivo	O
Video/Audio	O
platform	O
,	O
including	O
its	O
encoding	O
tools	O
and	O
end-user	O
VivoActive	B-Algorithm
Player	O
.	O
</s>
<s>
Since	O
then	O
RealPlayer	B-Application
,	O
QuickTime	B-Application
and	O
Windows	B-Device
Media	I-Device
have	O
evolved	O
as	O
the	O
dominant	O
platforms	O
.	O
</s>
<s>
The	O
development	O
of	O
Vivo	O
ceased	O
in	O
1997	O
to	O
be	O
replaced	O
by	O
RealPlayer	B-Application
from	O
RealNetworks	O
.	O
</s>
<s>
VivoActive	B-Algorithm
is	O
an	O
audio/video	O
format	O
created	O
by	O
Vivo	B-Algorithm
Software	I-Algorithm
,	O
acquired	O
by	O
RealNetworks	O
in	O
1997	O
.	O
</s>
<s>
The	O
Vivo	O
format	O
is	O
based	O
upon	O
H.263	B-Algorithm
video	O
and	O
G.723	B-Algorithm
ADPCM	B-Algorithm
audio	O
(	O
not	O
the	O
G.723.1	O
speech	O
codec	O
)	O
.	O
</s>
<s>
It	O
uses	O
inter-frame	B-Algorithm
coding	I-Algorithm
,	O
but	O
does	O
not	O
insert	O
any	O
key	O
frames	O
,	O
except	O
at	O
the	O
beginning	O
of	O
the	O
clip	O
,	O
which	O
effectively	O
disables	O
the	O
possibility	O
of	O
seeking	O
to	O
specific	O
locations	O
in	O
the	O
stream	O
.	O
</s>
<s>
One	O
of	O
the	O
last	O
released	O
versions	O
of	O
VivoActive	B-Algorithm
Player	O
added	O
a	O
workaround	B-Application
for	O
this	O
handicap	O
by	O
quickly	O
decoding	O
all	O
frames	O
from	O
the	O
first	O
one	O
to	O
the	O
requested	O
position	O
.	O
</s>
<s>
MPlayer	B-Application
is	O
able	O
to	O
play	O
and	O
convert	O
Vivo	O
video	O
clips	O
.	O
</s>
<s>
The	O
official	O
client	O
(	O
The	O
VivoActive	B-Algorithm
Player	O
)	O
was	O
limited	O
.	O
</s>
