Video Grabber User Manual - v. 1.19 (FW 1.29)
54
5.5.3.
confCodec (subsection 3)
In the following tables only
OBJECTNUMBER
part of the identifier (OID) is listed.
COMMON TO H264 AND LOSSLESS
OBJECTNUMBER Name
Access
Type
Description
4
codec
IFramePeriod
read-write
Integer I-Frame period for H264 and Lossless
encoders – setting it to 50 makes every
50
th
frame an I-Frame.
H264
OBJECTNUMBER Name
Access
Type
Description
1
codec
H264Mode
read-write
Enum
H.264 codec mode:
0 – Variable bitrate mode (VBR)
1 – Constant bitrate mode (CBR)
2
codec
H264Cbr
read-write
Integer Bitrate value kilobits for Constant
bitrate mode.
Used only if codecH264Mode is set to
1
Min: 10 – translates to ~1.22kBps
Max: 40000 – translates to ~4.76MBps
3
codec
H264Qp
read-write
Integer Quantization parameter of the H264
encoder. From 0 to 51. Higher QP
means lower quality and lower bitrate.
Used only if codecH264Mode is set to 0.
Example:
To configure the H264 compression on the Video Grabber with IP address 192.168.5.2 to Variable
Bitrate with Quantization Parameter set to 26 one would have to run the following commands:
First to set the codecH264Mode to Variable bitrate mode:
snmpset –v3 –l authPriv –u rw_user
-a MD5 –A uXTxzFQOscIZR1qcMAOSEwxf2HDeD6
-x DES –X LlUzFSpOVmBrem3VOFYfqd42VB1vve
192.168.5.2 1.3.6.1.4.1.46236.1.3.3.1.0 i 0
Then to set the codecH264Qp to 26:
snmpset –v3 –l authPriv –u rw_user
-a MD5 –A uXTxzFQOscIZR1qcMAOSEwxf2HDeD6
-x DES –X LlUzFSpOVmBrem3VOFYfqd42VB1vve
192.168.5.2 1.3.6.1.4.1.46236.1.3.2.3.0 i 26
Once the settings are set one would have to apply them by running the following command:
snmpset –v3 –l authPriv –u rw_user
-a MD5 –A uXTxzFQOscIZR1qcMAOSEwxf2HDeD6
-x DES –X LlUzFSpOVmBrem3VOFYfqd42VB1vve
192.168.5.2 1.3.6.1.4.1.46236.1.3.11.1.0 i 4321
