Gop Length Option - TANDBERG evolution 5000 E5710 Instruction Manual

Operating the Equipment Locally
Table 4.35: Group of Pictures Structure Options
Selected Option
IBBBP
IBBP
IBP
IP
IBBB
IBB
IB
I-Frame
NOTE...
For some GOP changes operation can be seamless but this is not guaranteed.

GOP Length Option

To access the Group of Pictures (GOP) Length option, press the GOP
Length softkey in the Video Encoder Menu.
This enables the video GOP structure length to be set. The structure length
determines how regularly an I frame is transmitted. The I frame provides a
regular reference from which predicted frames can be generated, thereby
ensuring that predictions do not become wildly inaccurate.
NOTE...
Some of the settings may not be available if they are not valid for use with other current encoding
parameters. Also, changing the GOP structure automatically changes the GOP length if the current
GOP length is not compatible with the selected structure.
GOP Length
GOP Length :
Table 4.36: Group of Pictures Length Options
Valid Input Range
Min:
Max:
Page 4-42
Description
(IBBBPBBBPBBBI).
for successive B frames (IBBPBBPBBPBBPI) – default.
for operation with B frames (IBPBPBPBPBPI).
for non-B frame operation (IPPPPPPPPPPI) - default for low delay mode.
(IBBBIBBBIBBBIBBB) - professional editing standard.
IBBIBBIBBIBBIBBIBBI) - professional editing standard.
(IBIBIBIBIBIBIBIBIB) - a professional editing standard.
(IIIIIIIIIIIIIII) - for precise editing and compression.
15
Update using softkeys
Description
1 GOP lengths available depend on GOP structure selected and the frame rate.
15 Maximum GOP lengths are 12 for 25 Hz and 15 for 29.97 Hz.
I-Frame and IP encoding have 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
IBP and IB have 2, 4, 6, 8, 10, 12, 14.
IBBP and IBB have 3, 6, 9, 12, 15.
IBBBP and IBBB have 4, 8, 12.
Enter l
Quit l
Instruction Manual: evolution 5000 E5710 and E5720 Encoder
+
—
ST.TM.E10074.1