Ericsson AVP 4000, Reference Manual, Page: 122 / 422

Getting Started
3-86 1/1553-FGC 101 1790 Uen Y
3.9.3 AVP 4000 Seamless and Reflex Operation
The recommended settings for Seamless and Reflex operation are below:
Table 3.22 AVP 4000 Seamless and Reflex Operation
SD/HD
Min Bit
Rate (Kbps)
Delay
(sec)
Calculated
Buffer Size
(Kbit)
Max Buffer
Size (Mbit)
Minimum
Allowed Bit
Rate (kbps)
MPEG 2
SD 550
3.2
1760 1.8 500
HD 3000 9600 9.6 2000
H.264
SD 650 2080 10 500
HD 2500 8000 20 or 25 1000
Use this default if in ATSC and the Reflex group includes MPEG 2 HD
MPEG 2
SD 650
2.6
1690 1.8 500
HD 3000 7800 7.8 2000
H.264
SD 800 2080 10 500
HD 3000 7800 20 or 25 1000
3.10 How to Configure Video for CE-HEVC
Buffer Mode
The buffer modes offered are:
•
CBR – Constant Bit Rate operation is the recommended mode of operation for
all profiles and bit rates.
• Low Delay – removes pre-processing functions to reduce the encode delay but
at a lower quality. Bit Rate, GOP Structure and GOP length selections will affect
the delay.
•
Mega Low Delay – removes frame sync in pre-processing to reduce encode
delay further but at reduced quality. Bit Rate, GOP Structure and GOP length
selections will affect the delay.
•
Super Low Delay (HEVC only)
– offers the lowest delay possible. Bit rate
selection may affect the delay. In this mode, the only GOP structures possible
are All P and I Frame only . Not available with H.264.
GOP Structure
For best picture quality the following GOP structures are recommended: