CONFIDENTIAL
DOC-USR-0010-09
___________________________________________________________________________________________
Z3 Technology, LLC
♦
100 N 8
th
ST, STE 250
♦
Lincoln, NE 68508-1369 USA
♦
+1.402.323.0702
35
Video Burst Size
150 – 2000ms (
1000
)
# of ms to buffer. The higher the value, the
smoother the encode, but also the higher the
latency (see “Adjusting for latency and quality”).
Video Codec
H.264
MPEG-2
The codec to use for encode.
B-Frame GOP
Structure
open [IBB]
closed [BBI]
An open structure means a B-frame can refer to an
I-frame in the preceding GOP. “Closed” means all
B-frames in a GOP can only refer to I and P-frames
within the GOP. Using “open” will lead to slightly
better compression. “Closed” is useful when you
know you plan to put chapter markers in the
content (the DVD standard requires that any GOP
used as a chapter marker must be a closed GOP).
The default is “Open.”
B-frame Interval
1
–
3
# of B-frames between P-frames minus 1. Setting
“1” means no B-frames. Setting “3” means 2 B-
frames between every P-frame.
B-frame Temporal
Layer
1
- 4
Used to configure # of pyramidal B-frames the
encoder uses. Increasing this number will
potentially improve quality at lower bit rates.
However, setting this value to something besides 1
also runs the chance of causing an incompatibility
with off-the-shelf decoders, since not all of them
necessarily support pyramidal B-frames.
Audio Delay
0
– 1000ms
Can be used with “video delay” to adjust
audio/video offset when the A/V sync of the source
is a little off. This is typically set to 0.
Video Delay
0
– 1000ms
Can be used with “audio delay” to adjust
audio/video offset when the A/V sync of the source
is a little off. This is typically set to 0.
Output Interface
Ethernet
DVB-ASI
DVB-ASI+Ethernet
Where the output stream goes to. The user can
select between Ethernet, DVB-ASI, or both. Note
that for RTP, Ethernet must be selected.
