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AXIS 213 - Setup
MPEG-4 Settings
The AXIS 213 supports the following different MPEG-4 profiles and levels:
Advanced Simple Profile @ Level 3 Max bit rate = 768 kbit/s
ISMA compliant
Advanced Simple Profile @ Level 5 Max Bit rate = 8 Mbit/s
Level 5 is preferred if there is enough bandwidth available, as the image quality of
the video stream will be better than if level 3 is used. The viewing client must support
the profile used for the video stream otherwise the MPEG-4 stream can not be viewed.
Note: The Axis Media Control supports all the configuration possibilities available on this page.
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.
Note: GOV = Group of VOPs
VOP = Video Object Plane
Video Object Plane = image
Profile@Level Properties