-47-
Video Encoding
Structure
1.St
r
eam
T
ype: Composi
te Str
eam and Video St
r
eam a
r
e o
p
�onal,
when audio is needed,please choose Composi
te Str
eam.
2.
R
esolu�on:user
c
an choose diff
erent r
esolu�on ac
c
o
rding t
o
sub-
str
eam and main
str
eam ( diff
eren
t types IP
c
ame
r
a has diff
erent
r
esolu�on o
p
�on).
3. Bi
t-r
at
es’ Type: v
ariable bit
r
ate and
c
on
st
a
n
t bit
r
ate.
4. Bi
t-r
ates’ Upper Limit: user
c
an choose diff
erent v
alue f
r
om li
s
t,also
c
an d
e
fine it.
5. F
r
ame Rat
e: select di
ff
erent v
alues in the d
r
op-do
wn list
,
the de
fault
is "full f
r
ame
r
ate".
6.Ima
g
e quality: When the bit
r
at
e type is v
ariable bit
r
ate,diff
erent
ima
g
e quality
c
an be selec
t
ed ac
c
o
rding t
o
requir
eme
n
t.
7.I f
r
ame i
nterv
al": The usual I f
r
ame i
nterv
al is 25.
The r
esolu�on of lo
c
al sna
p
shot pictu
r
es and the i
nterv
al �me of
sna
p
shots
c
an be s
et
for each channel of the d
e
vice.
The func�on of s
e
�ng the o
rg
ani
z
a�onal
structure is t
o p
review
channels in g
r
oup,which user
c
an divide g
r
ou
p
s ac
c
o
rding t
o a cer
t
ain
st
anda
rd
.
The
follo
wing picture is divided int
o g
r
ou
ps
by a
r
ea.The same
channel
c
an be divided i
nt
o diff
erent gr
ou
p
s (such as ch 4) as
requir
ed.
3.3.5.2.2 Capture Picture Par
am
eters
3.3.5.2.3 Channel G
rouping