from
the
previous
GOP
at
the
current
GOP
boundary.
CLOSED
GOP
starts
with
an
I
Frame
and
subsequent
B
Frames
do
not
rely
on
I
or
P
frames
from
the
previous
GOP.
AUTO
mode
is
supported
on
VE2
only,
the
encoder
adjusts
the
GOP
size
based
on
video
content
in
order
to
maximize
picture
quality.
When
the
video
codec
is
H264
you
MUST
use
AUTO
GOP
to
yield
the
best
results.
The
maximum
AUTO
GOP
size
is
132
frames
for
MPEG2,
and
300
frames
for
H264.
4.17
GOP
Structure
GOP
Structure
sets
the
format
Group-of-Pictures
will
use;
the
order
of
interframes
and
the
various
types
of
picture
frames
that
will
be
used.
I
IP
IBP
IBBP
4.18
GOP
Size
GOP
Size
is
the
distance
between
two
full
image
frames
(I-Frames)
in
a
GOP
Structure.
user-defined
using
the
numeric
keypad
range
=
1-30
Audio
Menu
Item
Function
Options
<<
1
-
2
>>
Parallel
Menus.
5.1
Surround
Sound
Determines
the
surround
sound
mode
DD,DD-06,AAC-LC,AAC-HEv1,AAC-6,
5.2
Surround
Anchor
Determines
the
first
audio
pair
for
surround
encode.
Note:
surround
encode
occupies
3
consecutive
audio
pairs
0
-
Pair
1,2,3
1
-
Pair
2,3,4
2
-
Pair
3,4,5
3
-
Pair
4,5,6
4
-
Pair
5,6,7
5
-
Pair
6,7,8
<<
1
-8
>>
Parallel
Menus.
5.3
Input
Selects
the
audio
input
to
use
during
encoding.
Analog
SDI
AES
5.4
Mode
Allow
you
to
configure
your
device
to
Encode
per
audio
or
Passthru
Off
Encode
