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AXIS 213 PTZ
Advanced - MPEG-4
Client Compatibility
The AXIS 213 PTZ supports the following different MPEG-4 profiles and levels:
To use Advanced Simple Profile @ Level 3, select
ISMA compliant
and click the
Save
button.
Level 5 is preferred if there is enough bandwidth available, as the image quality of the video stream is better
than at level 3. The viewing client must support the profile used for the video stream, otherwise the MPEG-4
stream cannot be viewed.
Note:
The Axis Media Control supports all the configuration possibilities described on this page.
GOV Settings
The
GOV structure
can be set to either
I
or
IP
, which describes the type of images included in the video
stream, as well as their internal order. The IP-structure generally sends the differences compared to the
previous image and far fewer complete images, so this method uses much less bandwidth than the
I-structure. The I-structure gives higher frame rates when using a high resolution, but requires more
bandwidth.
The
GOV length
determines the sum total of P-images and I-images in a GOV. Setting the GOV length to a
high value saves considerably on bandwidth. However there may be noticeable decay in the image at high
values.
Notes:
• GOV = Group of VOPs
• VOP = Video Object Plane
• Video Object Plane = image
Profile@Level
Properties
Advanced Simple Profile @ Level 3
Max bit rate = 768 kbit/s, ISMA compliant
Advanced Simple Profile @ Level 5
Max Bit rate = 8 Mbit/s
